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1 /*
2  * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/bus.h>
33 #include <sys/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/frame.h>
44 #include <machine/intr.h>
45
46 #include <dev/fdt/fdt_common.h>
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 <machine/bus.h>
55 #include <machine/fdt.h>
56
57 #define PL110_VENDOR_ARM926PXP  1
58
59 #define MEM_SYS         0
60 #define MEM_CLCD        1
61 #define MEM_REGIONS     2
62
63 #define SYS_CLCD                0x00
64 #define         SYS_CLCD_CLCDID_SHIFT   0x08
65 #define         SYS_CLCD_CLCDID_MASK    0x1f
66 #define         SYS_CLCD_PWR3V5VSWITCH  (1 << 4)
67 #define         SYS_CLCD_VDDPOSSWITCH   (1 << 3)
68 #define         SYS_CLCD_NLCDIOON       (1 << 2)
69 #define         SYS_CLCD_LCD_MODE_MASK  0x03
70
71 #define CLCD_MODE_RGB888        0x0
72 #define CLCD_MODE_RGB555        0x01
73 #define CLCD_MODE_RBG565        0x02
74 #define CLCD_MODE_RGB565        0x03
75
76 #define CLCDC_TIMING0           0x00
77 #define CLCDC_TIMING1           0x04
78 #define CLCDC_TIMING2           0x08
79 #define CLCDC_TIMING3           0x0C
80 #define CLCDC_TIMING3           0x0C
81 #define CLCDC_UPBASE            0x10
82 #define CLCDC_LPBASE            0x14
83 #ifdef PL110_VENDOR_ARM926PXP
84 #define CLCDC_CONTROL           0x18
85 #define CLCDC_IMSC              0x1C
86 #else
87 #define CLCDC_IMSC              0x18
88 #define CLCDC_CONTROL           0x1C
89 #endif
90 #define         CONTROL_WATERMARK       (1 << 16)
91 #define         CONTROL_VCOMP_VS        (0 << 12)
92 #define         CONTROL_VCOMP_BP        (1 << 12)
93 #define         CONTROL_VCOMP_SAV       (2 << 12)
94 #define         CONTROL_VCOMP_FP        (3 << 12)
95 #define         CONTROL_PWR             (1 << 11)
96 #define         CONTROL_BEPO            (1 << 10)
97 #define         CONTROL_BEBO            (1 << 9)
98 #define         CONTROL_BGR             (1 << 8)
99 #define         CONTROL_DUAL            (1 << 7)
100 #define         CONTROL_MONO8           (1 << 6)
101 #define         CONTROL_TFT             (1 << 5)
102 #define         CONTROL_BW              (1 << 4)
103 #define         CONTROL_BPP1            (0x00 << 1)
104 #define         CONTROL_BPP2            (0x01 << 1)
105 #define         CONTROL_BPP4            (0x02 << 1)
106 #define         CONTROL_BPP8            (0x03 << 1)
107 #define         CONTROL_BPP16           (0x04 << 1)
108 #define         CONTROL_BPP24           (0x05 << 1)
109 #define         CONTROL_EN      (1 << 0)
110 #define CLCDC_RIS               0x20
111 #define CLCDC_MIS               0x24
112 #define         INTR_MBERR              (1 << 4)
113 #define         INTR_VCOMP              (1 << 3)
114 #define         INTR_LNB                (1 << 2)
115 #define         INTR_FUF                (1 << 1)
116 #define CLCDC_ICR               0x28
117
118 #ifdef DEBUG
119 #define dprintf(fmt, args...) do { printf("%s(): ", __func__);   \
120     printf(fmt,##args); } while (0)
121 #else
122 #define dprintf(fmt, args...)
123 #endif
124
125 #define versatile_clcdc_sys_read_4(sc, reg)     \
126         bus_read_4((sc)->mem_res[MEM_SYS], (reg))
127 #define versatile_clcdc_sys_write_4(sc, reg, val)       \
128         bus_write_4((sc)->mem_res[MEM_SYS], (reg), (val))
129
130 #define versatile_clcdc_read_4(sc, reg) \
131         bus_read_4((sc)->mem_res[MEM_CLCD], (reg))
132 #define versatile_clcdc_write_4(sc, reg, val)   \
133         bus_write_4((sc)->mem_res[MEM_CLCD], (reg), (val))
134
135 struct versatile_clcdc_softc {
136         struct resource*        mem_res[MEM_REGIONS];
137
138         struct mtx              mtx;
139
140         int                     width;
141         int                     height;
142         int                     mode;
143
144         bus_dma_tag_t           dma_tag;
145         bus_dmamap_t            dma_map;
146         bus_addr_t              fb_phys;
147         uint8_t                 *fb_base;
148
149 };
150
151 struct video_adapter_softc {
152         /* Videoadpater part */
153         video_adapter_t va;
154         int             console;
155
156         intptr_t        fb_addr;
157         unsigned int    fb_size;
158
159         unsigned int    height;
160         unsigned int    width;
161         unsigned int    depth;
162         unsigned int    stride;
163
164         unsigned int    xmargin;
165         unsigned int    ymargin;
166
167         unsigned char   *font;
168         int             initialized;
169 };
170
171 struct argb {
172         uint8_t         a;
173         uint8_t         r;
174         uint8_t         g;
175         uint8_t         b;
176 };
177
178 static struct argb versatilefb_palette[16] = {
179         {0x00, 0x00, 0x00, 0x00},
180         {0x00, 0x00, 0x00, 0xaa},
181         {0x00, 0x00, 0xaa, 0x00},
182         {0x00, 0x00, 0xaa, 0xaa},
183         {0x00, 0xaa, 0x00, 0x00},
184         {0x00, 0xaa, 0x00, 0xaa},
185         {0x00, 0xaa, 0x55, 0x00},
186         {0x00, 0xaa, 0xaa, 0xaa},
187         {0x00, 0x55, 0x55, 0x55},
188         {0x00, 0x55, 0x55, 0xff},
189         {0x00, 0x55, 0xff, 0x55},
190         {0x00, 0x55, 0xff, 0xff},
191         {0x00, 0xff, 0x55, 0x55},
192         {0x00, 0xff, 0x55, 0xff},
193         {0x00, 0xff, 0xff, 0x55},
194         {0x00, 0xff, 0xff, 0xff}
195 };
196
197 /* mouse pointer from dev/syscons/scgfbrndr.c */
198 static u_char mouse_pointer[16] = {
199         0x00, 0x40, 0x60, 0x70, 0x78, 0x7c, 0x7e, 0x68,
200         0x0c, 0x0c, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00
201 };
202
203 #define FB_WIDTH                640
204 #define FB_HEIGHT               480
205 #define FB_DEPTH                16
206
207 #define VERSATILE_FONT_HEIGHT   16
208
209 static struct video_adapter_softc va_softc;
210
211 static struct resource_spec versatile_clcdc_mem_spec[] = {
212         { SYS_RES_MEMORY, 0, RF_ACTIVE },
213         { SYS_RES_MEMORY, 1, RF_ACTIVE },
214         { -1, 0, 0 }
215 };
216
217 static int versatilefb_configure(int);
218 static void versatilefb_update_margins(video_adapter_t *adp);
219
220 static void
221 versatile_fb_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int err)
222 {
223         bus_addr_t *addr;
224
225         if (err)
226                 return;
227
228         addr = (bus_addr_t*)arg;
229         *addr = segs[0].ds_addr;
230 }
231
232 static int
233 versatile_clcdc_probe(device_t dev)
234 {
235
236         if (ofw_bus_is_compatible(dev, "arm,pl110")) {
237                 device_set_desc(dev, "PL110 CLCD controller");
238                 return (BUS_PROBE_DEFAULT);
239         }
240
241         return (ENXIO);
242 }
243
244 static int
245 versatile_clcdc_attach(device_t dev)
246 {
247         struct versatile_clcdc_softc *sc = device_get_softc(dev);
248         struct video_adapter_softc *va_sc = &va_softc;
249         int err;
250         uint32_t reg;
251         int clcdid;
252         int dma_size;
253
254         /* Request memory resources */
255         err = bus_alloc_resources(dev, versatile_clcdc_mem_spec,
256                 sc->mem_res);
257         if (err) {
258                 device_printf(dev, "Error: could not allocate memory resources\n");
259                 return (ENXIO);
260         }
261
262         reg = versatile_clcdc_sys_read_4(sc, SYS_CLCD);
263         clcdid = (reg >> SYS_CLCD_CLCDID_SHIFT) & SYS_CLCD_CLCDID_MASK;
264         switch (clcdid) {
265                 case 31:
266                         device_printf(dev, "QEMU VGA 640x480\n");
267                         sc->width = 640;
268                         sc->height = 480;
269                         break;
270                 default:
271                         device_printf(dev, "Unsupported: %d\n", clcdid);
272                         goto fail;
273         }
274
275         reg &= ~SYS_CLCD_LCD_MODE_MASK;
276         reg |= CLCD_MODE_RGB565;
277         sc->mode = CLCD_MODE_RGB565;
278         versatile_clcdc_sys_write_4(sc, SYS_CLCD, reg);
279         dma_size = sc->width*sc->height*2;
280
281         /*
282          * Power on LCD
283          */
284         reg |= SYS_CLCD_PWR3V5VSWITCH | SYS_CLCD_NLCDIOON;
285         versatile_clcdc_sys_write_4(sc, SYS_CLCD, reg);
286
287         /*
288          * XXX: hardcoded timing for VGA. For other modes/panels
289          * we need to keep table of timing register values
290          */
291         /*
292          * XXX: set SYS_OSC1 
293          */
294         versatile_clcdc_write_4(sc, CLCDC_TIMING0, 0x3F1F3F9C);
295         versatile_clcdc_write_4(sc, CLCDC_TIMING1, 0x090B61DF);
296         versatile_clcdc_write_4(sc, CLCDC_TIMING2, 0x067F1800);
297         /* XXX: timing 3? */
298
299         /*
300          * Now allocate framebuffer memory
301          */
302         err = bus_dma_tag_create(
303             bus_get_dma_tag(dev),
304             4, 0,               /* alignment, boundary */
305             BUS_SPACE_MAXADDR_32BIT,    /* lowaddr */
306             BUS_SPACE_MAXADDR,          /* highaddr */
307             NULL, NULL,                 /* filter, filterarg */
308             dma_size, 1,                /* maxsize, nsegments */
309             dma_size, 0,                /* maxsegsize, flags */
310             NULL, NULL,                 /* lockfunc, lockarg */
311             &sc->dma_tag);
312
313         err = bus_dmamem_alloc(sc->dma_tag, (void **)&sc->fb_base,
314             0, &sc->dma_map);
315         if (err) {
316                 device_printf(dev, "cannot allocate framebuffer\n");
317                 goto fail;
318         }
319
320         err = bus_dmamap_load(sc->dma_tag, sc->dma_map, sc->fb_base,
321             dma_size, versatile_fb_dmamap_cb, &sc->fb_phys, BUS_DMA_NOWAIT);
322
323         if (err) {
324                 device_printf(dev, "cannot load DMA map\n");
325                 goto fail;
326         }
327
328         /* Make sure it's blank */
329         memset(sc->fb_base, 0x00, dma_size);
330
331         versatile_clcdc_write_4(sc, CLCDC_UPBASE, sc->fb_phys);
332
333         err = (sc_attach_unit(device_get_unit(dev),
334             device_get_flags(dev) | SC_AUTODETECT_KBD));
335
336         if (err) {
337                 device_printf(dev, "failed to attach syscons\n");
338                 goto fail;
339         }
340
341         /*
342          * XXX: hardcoded for VGA
343          */
344         reg = CONTROL_VCOMP_BP | CONTROL_TFT | CONTROL_BGR | CONTROL_EN;
345         reg |= CONTROL_BPP16;
346         versatile_clcdc_write_4(sc, CLCDC_CONTROL, reg);
347         DELAY(20);
348         reg |= CONTROL_PWR;
349         versatile_clcdc_write_4(sc, CLCDC_CONTROL, reg);
350
351         va_sc->fb_addr = (vm_offset_t)sc->fb_base;
352         va_sc->fb_size = dma_size;
353         va_sc->width = sc->width;
354         va_sc->height = sc->height;
355         va_sc->depth = 16;
356         va_sc->stride = sc->width * 2;
357         versatilefb_update_margins(&va_sc->va);
358
359         return (0);
360
361 fail:
362         if (sc->fb_base)
363                 bus_dmamem_free(sc->dma_tag, sc->fb_base, sc->dma_map);
364         if (sc->dma_map)
365                 bus_dmamap_destroy(sc->dma_tag, sc->dma_map);
366         if (sc->dma_tag)
367                 bus_dma_tag_destroy(sc->dma_tag);
368         return (err);
369 }
370
371 static device_method_t versatile_clcdc_methods[] = {
372         DEVMETHOD(device_probe,         versatile_clcdc_probe),
373         DEVMETHOD(device_attach,        versatile_clcdc_attach),
374
375         DEVMETHOD_END
376 };
377
378 static driver_t versatile_clcdc_driver = {
379         "clcdc",
380         versatile_clcdc_methods,
381         sizeof(struct versatile_clcdc_softc),
382 };
383
384 static devclass_t versatile_clcdc_devclass;
385
386 DRIVER_MODULE(versatile_clcdc, simplebus, versatile_clcdc_driver, versatile_clcdc_devclass, 0, 0);
387
388 /*
389  * Video driver routines and glue.
390  */
391 static vi_probe_t               versatilefb_probe;
392 static vi_init_t                versatilefb_init;
393 static vi_get_info_t            versatilefb_get_info;
394 static vi_query_mode_t          versatilefb_query_mode;
395 static vi_set_mode_t            versatilefb_set_mode;
396 static vi_save_font_t           versatilefb_save_font;
397 static vi_load_font_t           versatilefb_load_font;
398 static vi_show_font_t           versatilefb_show_font;
399 static vi_save_palette_t        versatilefb_save_palette;
400 static vi_load_palette_t        versatilefb_load_palette;
401 static vi_set_border_t          versatilefb_set_border;
402 static vi_save_state_t          versatilefb_save_state;
403 static vi_load_state_t          versatilefb_load_state;
404 static vi_set_win_org_t         versatilefb_set_win_org;
405 static vi_read_hw_cursor_t      versatilefb_read_hw_cursor;
406 static vi_set_hw_cursor_t       versatilefb_set_hw_cursor;
407 static vi_set_hw_cursor_shape_t versatilefb_set_hw_cursor_shape;
408 static vi_blank_display_t       versatilefb_blank_display;
409 static vi_mmap_t                versatilefb_mmap;
410 static vi_ioctl_t               versatilefb_ioctl;
411 static vi_clear_t               versatilefb_clear;
412 static vi_fill_rect_t           versatilefb_fill_rect;
413 static vi_bitblt_t              versatilefb_bitblt;
414 static vi_diag_t                versatilefb_diag;
415 static vi_save_cursor_palette_t versatilefb_save_cursor_palette;
416 static vi_load_cursor_palette_t versatilefb_load_cursor_palette;
417 static vi_copy_t                versatilefb_copy;
418 static vi_putp_t                versatilefb_putp;
419 static vi_putc_t                versatilefb_putc;
420 static vi_puts_t                versatilefb_puts;
421 static vi_putm_t                versatilefb_putm;
422
423 static video_switch_t versatilefbvidsw = {
424         .probe                  = versatilefb_probe,
425         .init                   = versatilefb_init,
426         .get_info               = versatilefb_get_info,
427         .query_mode             = versatilefb_query_mode,
428         .set_mode               = versatilefb_set_mode,
429         .save_font              = versatilefb_save_font,
430         .load_font              = versatilefb_load_font,
431         .show_font              = versatilefb_show_font,
432         .save_palette           = versatilefb_save_palette,
433         .load_palette           = versatilefb_load_palette,
434         .set_border             = versatilefb_set_border,
435         .save_state             = versatilefb_save_state,
436         .load_state             = versatilefb_load_state,
437         .set_win_org            = versatilefb_set_win_org,
438         .read_hw_cursor         = versatilefb_read_hw_cursor,
439         .set_hw_cursor          = versatilefb_set_hw_cursor,
440         .set_hw_cursor_shape    = versatilefb_set_hw_cursor_shape,
441         .blank_display          = versatilefb_blank_display,
442         .mmap                   = versatilefb_mmap,
443         .ioctl                  = versatilefb_ioctl,
444         .clear                  = versatilefb_clear,
445         .fill_rect              = versatilefb_fill_rect,
446         .bitblt                 = versatilefb_bitblt,
447         .diag                   = versatilefb_diag,
448         .save_cursor_palette    = versatilefb_save_cursor_palette,
449         .load_cursor_palette    = versatilefb_load_cursor_palette,
450         .copy                   = versatilefb_copy,
451         .putp                   = versatilefb_putp,
452         .putc                   = versatilefb_putc,
453         .puts                   = versatilefb_puts,
454         .putm                   = versatilefb_putm,
455 };
456
457 VIDEO_DRIVER(versatilefb, versatilefbvidsw, versatilefb_configure);
458
459 static vr_init_t clcdr_init;
460 static vr_clear_t clcdr_clear;
461 static vr_draw_border_t clcdr_draw_border;
462 static vr_draw_t clcdr_draw;
463 static vr_set_cursor_t clcdr_set_cursor;
464 static vr_draw_cursor_t clcdr_draw_cursor;
465 static vr_blink_cursor_t clcdr_blink_cursor;
466 static vr_set_mouse_t clcdr_set_mouse;
467 static vr_draw_mouse_t clcdr_draw_mouse;
468
469 /*
470  * We use our own renderer; this is because we must emulate a hardware
471  * cursor.
472  */
473 static sc_rndr_sw_t clcdrend = {
474         clcdr_init,
475         clcdr_clear,
476         clcdr_draw_border,
477         clcdr_draw,
478         clcdr_set_cursor,
479         clcdr_draw_cursor,
480         clcdr_blink_cursor,
481         clcdr_set_mouse,
482         clcdr_draw_mouse
483 };
484
485 RENDERER(versatilefb, 0, clcdrend, gfb_set);
486 RENDERER_MODULE(versatilefb, gfb_set);
487
488 static void
489 clcdr_init(scr_stat* scp)
490 {
491 }
492
493 static void
494 clcdr_clear(scr_stat* scp, int c, int attr)
495 {
496 }
497
498 static void
499 clcdr_draw_border(scr_stat* scp, int color)
500 {
501 }
502
503 static void
504 clcdr_draw(scr_stat* scp, int from, int count, int flip)
505 {
506         video_adapter_t* adp = scp->sc->adp;
507         int i, c, a;
508
509         if (!flip) {
510                 /* Normal printing */
511                 vidd_puts(adp, from, (uint16_t*)sc_vtb_pointer(&scp->vtb, from), count);
512         } else {        
513                 /* This is for selections and such: invert the color attribute */
514                 for (i = count; i-- > 0; ++from) {
515                         c = sc_vtb_getc(&scp->vtb, from);
516                         a = sc_vtb_geta(&scp->vtb, from) >> 8;
517                         vidd_putc(adp, from, c, (a >> 4) | ((a & 0xf) << 4));
518                 }
519         }
520 }
521
522 static void
523 clcdr_set_cursor(scr_stat* scp, int base, int height, int blink)
524 {
525 }
526
527 static void
528 clcdr_draw_cursor(scr_stat* scp, int off, int blink, int on, int flip)
529 {
530         video_adapter_t* adp = scp->sc->adp;
531         struct video_adapter_softc *sc;
532         int row, col;
533         uint8_t *addr;
534         int i,j;
535
536         sc = (struct video_adapter_softc *)adp;
537
538         if (scp->curs_attr.height <= 0)
539                 return;
540
541         if (sc->fb_addr == 0)
542                 return;
543
544         if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
545                 return;
546
547         /* calculate the coordinates in the video buffer */
548         row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
549         col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
550
551         addr = (uint8_t *)sc->fb_addr
552             + (row + sc->ymargin)*(sc->stride)
553             + (sc->depth/8) * (col + sc->xmargin);
554
555         /* our cursor consists of simply inverting the char under it */
556         for (i = 0; i < adp->va_info.vi_cheight; i++) {
557                 for (j = 0; j < adp->va_info.vi_cwidth; j++) {
558
559                         addr[2*j] ^= 0xff;
560                         addr[2*j + 1] ^= 0xff;
561                 }
562
563                 addr += sc->stride;
564         }
565 }
566
567 static void
568 clcdr_blink_cursor(scr_stat* scp, int at, int flip)
569 {
570 }
571
572 static void
573 clcdr_set_mouse(scr_stat* scp)
574 {
575 }
576
577 static void
578 clcdr_draw_mouse(scr_stat* scp, int x, int y, int on)
579 {
580         vidd_putm(scp->sc->adp, x, y, mouse_pointer, 0xffffffff, 16, 8);
581
582 }
583
584 static uint16_t versatilefb_static_window[ROW*COL];
585 extern u_char dflt_font_16[];
586
587 /*
588  * Update videoadapter settings after changing resolution
589  */
590 static void
591 versatilefb_update_margins(video_adapter_t *adp)
592 {
593         struct video_adapter_softc *sc;
594         video_info_t *vi;
595
596         sc = (struct video_adapter_softc *)adp;
597         vi = &adp->va_info;
598
599         sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
600         sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
601 }
602
603 static int
604 versatilefb_configure(int flags)
605 {
606         struct video_adapter_softc *va_sc;
607
608         va_sc = &va_softc;
609
610         if (va_sc->initialized)
611                 return (0);
612
613         va_sc->width = FB_WIDTH;
614         va_sc->height = FB_HEIGHT;
615         va_sc->depth = FB_DEPTH;
616
617         versatilefb_init(0, &va_sc->va, 0);
618
619         va_sc->initialized = 1;
620
621         return (0);
622 }
623
624 static int
625 versatilefb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
626 {
627
628         return (0);
629 }
630
631 static int
632 versatilefb_init(int unit, video_adapter_t *adp, int flags)
633 {
634         struct video_adapter_softc *sc;
635         video_info_t *vi;
636
637         sc = (struct video_adapter_softc *)adp;
638         vi = &adp->va_info;
639
640         vid_init_struct(adp, "versatilefb", -1, unit);
641
642         sc->font = dflt_font_16;
643         vi->vi_cheight = VERSATILE_FONT_HEIGHT;
644         vi->vi_cwidth = 8;
645
646         vi->vi_width = sc->width/8;
647         vi->vi_height = sc->height/vi->vi_cheight;
648
649         /*
650          * Clamp width/height to syscons maximums
651          */
652         if (vi->vi_width > COL)
653                 vi->vi_width = COL;
654         if (vi->vi_height > ROW)
655                 vi->vi_height = ROW;
656
657         sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
658         sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
659
660
661         adp->va_window = (vm_offset_t) versatilefb_static_window;
662         adp->va_flags |= V_ADP_FONT /* | V_ADP_COLOR | V_ADP_MODECHANGE */;
663
664         vid_register(&sc->va);
665
666         return (0);
667 }
668
669 static int
670 versatilefb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
671 {
672         bcopy(&adp->va_info, info, sizeof(*info));
673         return (0);
674 }
675
676 static int
677 versatilefb_query_mode(video_adapter_t *adp, video_info_t *info)
678 {
679         return (0);
680 }
681
682 static int
683 versatilefb_set_mode(video_adapter_t *adp, int mode)
684 {
685         return (0);
686 }
687
688 static int
689 versatilefb_save_font(video_adapter_t *adp, int page, int size, int width,
690     u_char *data, int c, int count)
691 {
692         return (0);
693 }
694
695 static int
696 versatilefb_load_font(video_adapter_t *adp, int page, int size, int width,
697     u_char *data, int c, int count)
698 {
699         struct video_adapter_softc *sc = (struct video_adapter_softc *)adp;
700
701         sc->font = data;
702
703         return (0);
704 }
705
706 static int
707 versatilefb_show_font(video_adapter_t *adp, int page)
708 {
709         return (0);
710 }
711
712 static int
713 versatilefb_save_palette(video_adapter_t *adp, u_char *palette)
714 {
715         return (0);
716 }
717
718 static int
719 versatilefb_load_palette(video_adapter_t *adp, u_char *palette)
720 {
721         return (0);
722 }
723
724 static int
725 versatilefb_set_border(video_adapter_t *adp, int border)
726 {
727         return (versatilefb_blank_display(adp, border));
728 }
729
730 static int
731 versatilefb_save_state(video_adapter_t *adp, void *p, size_t size)
732 {
733         return (0);
734 }
735
736 static int
737 versatilefb_load_state(video_adapter_t *adp, void *p)
738 {
739         return (0);
740 }
741
742 static int
743 versatilefb_set_win_org(video_adapter_t *adp, off_t offset)
744 {
745         return (0);
746 }
747
748 static int
749 versatilefb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
750 {
751         *col = *row = 0;
752
753         return (0);
754 }
755
756 static int
757 versatilefb_set_hw_cursor(video_adapter_t *adp, int col, int row)
758 {
759
760         return (0);
761 }
762
763 static int
764 versatilefb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
765     int celsize, int blink)
766 {
767         return (0);
768 }
769
770 static int
771 versatilefb_blank_display(video_adapter_t *adp, int mode)
772 {
773
774         struct video_adapter_softc *sc;
775
776         sc = (struct video_adapter_softc *)adp;
777         if (sc && sc->fb_addr)
778                 memset((void*)sc->fb_addr, 0, sc->fb_size);
779
780         return (0);
781 }
782
783 static int
784 versatilefb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
785     int prot, vm_memattr_t *memattr)
786 {
787         struct video_adapter_softc *sc;
788
789         sc = (struct video_adapter_softc *)adp;
790
791         /*
792          * This might be a legacy VGA mem request: if so, just point it at the
793          * framebuffer, since it shouldn't be touched
794          */
795         if (offset < sc->stride*sc->height) {
796                 *paddr = sc->fb_addr + offset;
797                 return (0);
798         }
799
800         return (EINVAL);
801 }
802
803 static int
804 versatilefb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
805 {
806
807         return (0);
808 }
809
810 static int
811 versatilefb_clear(video_adapter_t *adp)
812 {
813
814         return (versatilefb_blank_display(adp, 0));
815 }
816
817 static int
818 versatilefb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
819 {
820
821         return (0);
822 }
823
824 static int
825 versatilefb_bitblt(video_adapter_t *adp, ...)
826 {
827
828         return (0);
829 }
830
831 static int
832 versatilefb_diag(video_adapter_t *adp, int level)
833 {
834
835         return (0);
836 }
837
838 static int
839 versatilefb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
840 {
841
842         return (0);
843 }
844
845 static int
846 versatilefb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
847 {
848
849         return (0);
850 }
851
852 static int
853 versatilefb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
854 {
855
856         return (0);
857 }
858
859 static int
860 versatilefb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
861     int size, int bpp, int bit_ltor, int byte_ltor)
862 {
863
864         return (0);
865 }
866
867 static int
868 versatilefb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
869 {
870         struct video_adapter_softc *sc;
871         int row;
872         int col;
873         int i, j, k;
874         uint8_t *addr;
875         u_char *p;
876         uint8_t fg, bg, color;
877         uint16_t rgb;
878
879         sc = (struct video_adapter_softc *)adp;
880
881         if (sc->fb_addr == 0)
882                 return (0);
883
884         if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
885                 return (0);
886
887         row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
888         col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
889         p = sc->font + c*VERSATILE_FONT_HEIGHT;
890         addr = (uint8_t *)sc->fb_addr
891             + (row + sc->ymargin)*(sc->stride)
892             + (sc->depth/8) * (col + sc->xmargin);
893
894         fg = a & 0xf ;
895         bg = (a >> 4) & 0xf;
896
897         for (i = 0; i < VERSATILE_FONT_HEIGHT; i++) {
898                 for (j = 0, k = 7; j < 8; j++, k--) {
899                         if ((p[i] & (1 << k)) == 0)
900                                 color = bg;
901                         else
902                                 color = fg;
903
904                         switch (sc->depth) {
905                         case 16:
906                                 rgb = (versatilefb_palette[color].r >> 3) << 11;
907                                 rgb |= (versatilefb_palette[color].g >> 2) << 5;
908                                 rgb |= (versatilefb_palette[color].b >> 3);
909                                 addr[2*j] = rgb & 0xff;
910                                 addr[2*j + 1] = (rgb >> 8) & 0xff;
911                         default:
912                                 /* Not supported yet */
913                                 break;
914                         }
915                 }
916
917                 addr += (sc->stride);
918         }
919
920         return (0);
921 }
922
923 static int
924 versatilefb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
925 {
926         int i;
927
928         for (i = 0; i < len; i++) 
929                 versatilefb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
930
931         return (0);
932 }
933
934 static int
935 versatilefb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
936     uint32_t pixel_mask, int size, int width)
937 {
938
939         return (0);
940 }
941
942 /*
943  * Define a stub keyboard driver in case one hasn't been
944  * compiled into the kernel
945  */
946 #include <sys/kbio.h>
947 #include <dev/kbd/kbdreg.h>
948
949 static int dummy_kbd_configure(int flags);
950
951 keyboard_switch_t bcmdummysw;
952
953 static int
954 dummy_kbd_configure(int flags)
955 {
956
957         return (0);
958 }
959 KEYBOARD_DRIVER(bcmdummy, bcmdummysw, dummy_kbd_configure);