1 /* $NetBSD: ct65550.c,v 1.10 2014/01/04 16:37:05 macallan Exp $ */
2
3 /*
4 * Copyright (c) 2006 Michael Lorenz
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 ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 /*
29 * A console driver for Chips & Technologies 65550 graphics controllers
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: ct65550.c,v 1.10 2014/01/04 16:37:05 macallan Exp $");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/device.h>
39 #include <sys/kauth.h>
40 #include <sys/bus.h>
41 #include <dev/videomode/videomode.h>
42
43 #include <dev/ic/ct65550reg.h>
44 #include <dev/ic/ct65550var.h>
45
46 #include "opt_wsemul.h"
47 #include "opt_chipsfb.h"
48
49 static struct vcons_screen chipsfb_console_screen;
50
51 extern const u_char rasops_cmap[768];
52
53 static void chipsfb_init(struct chipsfb_softc *);
54
55 static void chipsfb_cursor(void *, int, int, int);
56 static void chipsfb_copycols(void *, int, int, int, int);
57 static void chipsfb_erasecols(void *, int, int, int, long);
58 static void chipsfb_copyrows(void *, int, int, int);
59 static void chipsfb_eraserows(void *, int, int, long);
60
61 #if 0
62 static int chipsfb_allocattr(void *, int, int, int, long *);
63 static void chipsfb_scroll(void *, void *, int);
64 static int chipsfb_load_font(void *, void *, struct wsdisplay_font *);
65 #endif
66
67 static int chipsfb_putcmap(struct chipsfb_softc *,
68 struct wsdisplay_cmap *);
69 static int chipsfb_getcmap(struct chipsfb_softc *,
70 struct wsdisplay_cmap *);
71 static int chipsfb_putpalreg(struct chipsfb_softc *, uint8_t, uint8_t,
72 uint8_t, uint8_t);
73
74 static void chipsfb_bitblt(struct chipsfb_softc *, int, int, int, int,
75 int, int, uint8_t);
76 static void chipsfb_rectfill(struct chipsfb_softc *, int, int, int, int,
77 int);
78 static void chipsfb_putchar(void *, int, int, u_int, long);
79 static void chipsfb_setup_mono(struct chipsfb_softc *, int, int, int,
80 int, uint32_t, uint32_t);
81 static void chipsfb_feed(struct chipsfb_softc *, int, uint8_t *);
82
83 #if 0
84 static void chipsfb_showpal(struct chipsfb_softc *);
85 #endif
86 static void chipsfb_restore_palette(struct chipsfb_softc *);
87
88 static void chipsfb_wait_idle(struct chipsfb_softc *);
89
90 struct wsscreen_descr chipsfb_defaultscreen = {
91 "default", /* name */
92 0, 0, /* ncols, nrows */
93 NULL, /* textops */
94 8, 16, /* fontwidth, fontheight */
95 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, /* capabilities */
96 NULL, /* modecookie */
97 };
98
99 const struct wsscreen_descr *_chipsfb_scrlist[] = {
100 &chipsfb_defaultscreen,
101 /* XXX other formats, graphics screen? */
102 };
103
104 struct wsscreen_list chipsfb_screenlist = {
105 sizeof(_chipsfb_scrlist) / sizeof(struct wsscreen_descr *), _chipsfb_scrlist
106 };
107
108 static int chipsfb_ioctl(void *, void *, u_long, void *, int,
109 struct lwp *);
110 static paddr_t chipsfb_mmap(void *, void *, off_t, int);
111 static void chipsfb_clearscreen(struct chipsfb_softc *);
112 static void chipsfb_init_screen(void *, struct vcons_screen *, int,
113 long *);
114
115
116 struct wsdisplay_accessops chipsfb_accessops = {
117 chipsfb_ioctl,
118 chipsfb_mmap,
119 NULL, /* vcons_alloc_screen */
120 NULL, /* vcons_free_screen */
121 NULL, /* vcons_show_screen */
122 NULL, /* load_font */
123 NULL, /* polls */
124 NULL, /* scroll */
125 };
126
127 /*
128 * Inline functions for getting access to register aperture.
129 */
130 static inline void
chipsfb_write32(struct chipsfb_softc * sc,uint32_t reg,uint32_t val)131 chipsfb_write32(struct chipsfb_softc *sc, uint32_t reg, uint32_t val)
132 {
133 bus_space_write_4(sc->sc_memt, sc->sc_mmregh, reg, val);
134 }
135
136 static inline uint32_t
chipsfb_read32(struct chipsfb_softc * sc,uint32_t reg)137 chipsfb_read32(struct chipsfb_softc *sc, uint32_t reg)
138 {
139 return bus_space_read_4(sc->sc_memt, sc->sc_mmregh, reg);
140 }
141
142 static inline void
chipsfb_write_vga(struct chipsfb_softc * sc,uint32_t reg,uint8_t val)143 chipsfb_write_vga(struct chipsfb_softc *sc, uint32_t reg, uint8_t val)
144 {
145 bus_space_write_1(sc->sc_iot, sc->sc_ioregh, reg, val);
146 }
147
148 static inline uint8_t
chipsfb_read_vga(struct chipsfb_softc * sc,uint32_t reg)149 chipsfb_read_vga(struct chipsfb_softc *sc, uint32_t reg)
150 {
151 return bus_space_read_1(sc->sc_iot, sc->sc_ioregh, reg);
152 }
153
154 static inline uint8_t
chipsfb_read_indexed(struct chipsfb_softc * sc,uint32_t reg,uint8_t index)155 chipsfb_read_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index)
156 {
157
158 chipsfb_write_vga(sc, reg & 0xfffe, index);
159 return chipsfb_read_vga(sc, reg | 0x0001);
160 }
161
162 __unused static inline void
chipsfb_write_indexed(struct chipsfb_softc * sc,uint32_t reg,uint8_t index,uint8_t val)163 chipsfb_write_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index,
164 uint8_t val)
165 {
166
167 chipsfb_write_vga(sc, reg & 0xfffe, index);
168 chipsfb_write_vga(sc, reg | 0x0001, val);
169 }
170
171 static void
chipsfb_wait_idle(struct chipsfb_softc * sc)172 chipsfb_wait_idle(struct chipsfb_softc *sc)
173 {
174
175 #ifdef CHIPSFB_DEBUG
176 chipsfb_write32(sc, CT_OFF_FB + (800 * 598) - 4, 0);
177 #endif
178
179 /* spin until the blitter is idle */
180 while ((chipsfb_read32(sc, CT_BLT_CONTROL) & BLT_IS_BUSY) != 0) {
181 }
182
183 #ifdef CHIPSFB_DEBUG
184 chipsfb_write32(sc, CT_OFF_FB + (800 * 598) - 4, 0xffffffff);
185 #endif
186 }
187
188 void
chipsfb_do_attach(struct chipsfb_softc * sc)189 chipsfb_do_attach(struct chipsfb_softc *sc)
190 {
191 struct wsemuldisplaydev_attach_args aa;
192 struct rasops_info *ri;
193 prop_dictionary_t dict;
194 ulong defattr;
195 bool console = false;
196 int width, height, i, j;
197 uint32_t bg, fg, ul;
198 uint8_t cmap[768];
199
200 dict = device_properties(sc->sc_dev);
201 sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
202 sc->sc_dacw = -1;
203
204 #ifdef CHIPSFB_DEBUG
205 printf(prop_dictionary_externalize(dict));
206 #endif
207 chipsfb_init(sc);
208
209 width = height = -1;
210
211 /* detect panel size */
212 width = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HSIZE_LSB);
213 width |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HORZ_OVERFLOW_1)
214 & 0x0f) << 8;
215 width = (width + 1) * 8;
216 height = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VSIZE_LSB);
217 height |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VERT_OVERFLOW_1)
218 & 0x0f) << 8;
219 height++;
220 if ((width < 640) || ( width > 1280) || (height < 480) ||
221 (height > 1024)) {
222 /* no sane values in the panel registers */
223 width = height = -1;
224 } else
225 aprint_verbose("Panel size: %d x %d\n", width, height);
226
227 if (!prop_dictionary_get_uint32(dict, "width", &sc->width))
228 sc->width = width;
229 if (!prop_dictionary_get_uint32(dict, "height", &sc->height))
230 sc->height = height;
231 if (!prop_dictionary_get_uint32(dict, "depth", &sc->bits_per_pixel))
232 sc->bits_per_pixel = 8;
233 if (!prop_dictionary_get_uint32(dict, "linebytes", &sc->linebytes))
234 sc->linebytes = (sc->width * sc->bits_per_pixel) >> 3;
235
236 prop_dictionary_get_bool(dict, "is_console", &console);
237
238 #ifdef notyet
239 /* XXX this should at least be configurable via kernel config */
240 chipsfb_set_videomode(sc, &videomode_list[16]);
241 #endif
242
243 vcons_init(&sc->vd, sc, &chipsfb_defaultscreen, &chipsfb_accessops);
244 sc->vd.init_screen = chipsfb_init_screen;
245
246 ri = &chipsfb_console_screen.scr_ri;
247 if (console) {
248 vcons_init_screen(&sc->vd, &chipsfb_console_screen, 1,
249 &defattr);
250 chipsfb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
251
252 chipsfb_defaultscreen.textops = &ri->ri_ops;
253 chipsfb_defaultscreen.capabilities = ri->ri_caps;
254 chipsfb_defaultscreen.nrows = ri->ri_rows;
255 chipsfb_defaultscreen.ncols = ri->ri_cols;
256 wsdisplay_cnattach(&chipsfb_defaultscreen, ri, 0, 0, defattr);
257 } else {
258 if (chipsfb_console_screen.scr_ri.ri_rows == 0) {
259 /* do some minimal setup to avoid weirdnesses later */
260 vcons_init_screen(&sc->vd, &chipsfb_console_screen, 1,
261 &defattr);
262 } else
263 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr);
264
265 }
266
267 rasops_unpack_attr(defattr, &fg, &bg, &ul);
268 sc->sc_bg = ri->ri_devcmap[bg];
269 chipsfb_clearscreen(sc);
270
271 if (console)
272 vcons_replay_msgbuf(&chipsfb_console_screen);
273
274 aprint_normal_dev(sc->sc_dev, "%d MB aperture, %d MB VRAM at 0x%08x\n",
275 (u_int)(sc->sc_fbsize >> 20),
276 (int)sc->memsize >> 20, (u_int)sc->sc_fb);
277 #ifdef CHIPSFB_DEBUG
278 aprint_debug("fb: %08lx\n", (ulong)ri->ri_bits);
279 #endif
280
281 j = 0;
282 rasops_get_cmap(ri, cmap, sizeof(cmap));
283 for (i = 0; i < 256; i++) {
284 chipsfb_putpalreg(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]);
285 j += 3;
286 }
287
288 aa.console = console;
289 aa.scrdata = &chipsfb_screenlist;
290 aa.accessops = &chipsfb_accessops;
291 aa.accesscookie = &sc->vd;
292
293 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint);
294 }
295
296 static int
chipsfb_putpalreg(struct chipsfb_softc * sc,uint8_t index,uint8_t r,uint8_t g,uint8_t b)297 chipsfb_putpalreg(struct chipsfb_softc *sc, uint8_t index, uint8_t r,
298 uint8_t g, uint8_t b)
299 {
300
301 sc->sc_cmap_red[index] = r;
302 sc->sc_cmap_green[index] = g;
303 sc->sc_cmap_blue[index] = b;
304
305 chipsfb_write_vga(sc, CT_DACMASK, 0xff);
306 chipsfb_write_vga(sc, CT_WRITEINDEX, index);
307 chipsfb_write_vga(sc, CT_DACDATA, r);
308 chipsfb_write_vga(sc, CT_DACDATA, g);
309 chipsfb_write_vga(sc, CT_DACDATA, b);
310
311 return 0;
312 }
313
314 static int
chipsfb_putcmap(struct chipsfb_softc * sc,struct wsdisplay_cmap * cm)315 chipsfb_putcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm)
316 {
317 u_char *r, *g, *b;
318 u_int index = cm->index;
319 u_int count = cm->count;
320 int i, error;
321 u_char rbuf[256], gbuf[256], bbuf[256];
322
323 #ifdef CHIPSFB_DEBUG
324 aprint_debug("putcmap: %d %d\n",index, count);
325 #endif
326 if (cm->index >= 256 || cm->count > 256 ||
327 (cm->index + cm->count) > 256)
328 return EINVAL;
329 error = copyin(cm->red, &rbuf[index], count);
330 if (error)
331 return error;
332 error = copyin(cm->green, &gbuf[index], count);
333 if (error)
334 return error;
335 error = copyin(cm->blue, &bbuf[index], count);
336 if (error)
337 return error;
338
339 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count);
340 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count);
341 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count);
342
343 r = &sc->sc_cmap_red[index];
344 g = &sc->sc_cmap_green[index];
345 b = &sc->sc_cmap_blue[index];
346
347 for (i = 0; i < count; i++) {
348 chipsfb_putpalreg(sc, index, *r, *g, *b);
349 index++;
350 r++, g++, b++;
351 }
352 return 0;
353 }
354
355 static int
chipsfb_getcmap(struct chipsfb_softc * sc,struct wsdisplay_cmap * cm)356 chipsfb_getcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm)
357 {
358 u_int index = cm->index;
359 u_int count = cm->count;
360 int error;
361
362 if (index >= 255 || count > 256 || index + count > 256)
363 return EINVAL;
364
365 error = copyout(&sc->sc_cmap_red[index], cm->red, count);
366 if (error)
367 return error;
368 error = copyout(&sc->sc_cmap_green[index], cm->green, count);
369 if (error)
370 return error;
371 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count);
372 if (error)
373 return error;
374
375 return 0;
376 }
377
378 static void
chipsfb_clearscreen(struct chipsfb_softc * sc)379 chipsfb_clearscreen(struct chipsfb_softc *sc)
380 {
381 chipsfb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg);
382 }
383
384 /*
385 * wsdisplay_emulops
386 */
387
388 static void
chipsfb_cursor(void * cookie,int on,int row,int col)389 chipsfb_cursor(void *cookie, int on, int row, int col)
390 {
391 struct rasops_info *ri = cookie;
392 struct vcons_screen *scr = ri->ri_hw;
393 struct chipsfb_softc *sc = scr->scr_cookie;
394 int x, y, wi, he;
395
396 wi = ri->ri_font->fontwidth;
397 he = ri->ri_font->fontheight;
398
399 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
400 x = ri->ri_ccol * wi + ri->ri_xorigin;
401 y = ri->ri_crow * he + ri->ri_yorigin;
402 if (ri->ri_flg & RI_CURSOR) {
403 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST);
404 ri->ri_flg &= ~RI_CURSOR;
405 }
406 ri->ri_crow = row;
407 ri->ri_ccol = col;
408 if (on) {
409 x = ri->ri_ccol * wi + ri->ri_xorigin;
410 y = ri->ri_crow * he + ri->ri_yorigin;
411 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST);
412 ri->ri_flg |= RI_CURSOR;
413 }
414 } else {
415 ri->ri_flg &= ~RI_CURSOR;
416 ri->ri_crow = row;
417 ri->ri_ccol = col;
418 }
419 }
420
421 #if 0
422 int
423 chipsfb_mapchar(void *cookie, int uni, u_int *index)
424 {
425 return 0;
426 }
427 #endif
428
429 static void
chipsfb_copycols(void * cookie,int row,int srccol,int dstcol,int ncols)430 chipsfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
431 {
432 struct rasops_info *ri = cookie;
433 struct vcons_screen *scr = ri->ri_hw;
434 struct chipsfb_softc *sc = scr->scr_cookie;
435 int32_t xs, xd, y, width, height;
436
437 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
438 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
439 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
440 y = ri->ri_yorigin + ri->ri_font->fontheight * row;
441 width = ri->ri_font->fontwidth * ncols;
442 height = ri->ri_font->fontheight;
443 chipsfb_bitblt(sc, xs, y, xd, y, width, height, ROP_COPY);
444 }
445 }
446
447 static void
chipsfb_erasecols(void * cookie,int row,int startcol,int ncols,long fillattr)448 chipsfb_erasecols(void *cookie, int row, int startcol, int ncols,
449 long fillattr)
450 {
451 struct rasops_info *ri = cookie;
452 struct vcons_screen *scr = ri->ri_hw;
453 struct chipsfb_softc *sc = scr->scr_cookie;
454 int32_t x, y, width, height, fg, bg, ul;
455
456 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
457 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
458 y = ri->ri_yorigin + ri->ri_font->fontheight * row;
459 width = ri->ri_font->fontwidth * ncols;
460 height = ri->ri_font->fontheight;
461 rasops_unpack_attr(fillattr, &fg, &bg, &ul);
462
463 chipsfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
464 }
465 }
466
467 static void
chipsfb_copyrows(void * cookie,int srcrow,int dstrow,int nrows)468 chipsfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
469 {
470 struct rasops_info *ri = cookie;
471 struct vcons_screen *scr = ri->ri_hw;
472 struct chipsfb_softc *sc = scr->scr_cookie;
473 int32_t x, ys, yd, width, height;
474
475 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
476 x = ri->ri_xorigin;
477 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
478 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
479 width = ri->ri_emuwidth;
480 height = ri->ri_font->fontheight * nrows;
481 chipsfb_bitblt(sc, x, ys, x, yd, width, height, ROP_COPY);
482 }
483 }
484
485 static void
chipsfb_eraserows(void * cookie,int row,int nrows,long fillattr)486 chipsfb_eraserows(void *cookie, int row, int nrows, long fillattr)
487 {
488 struct rasops_info *ri = cookie;
489 struct vcons_screen *scr = ri->ri_hw;
490 struct chipsfb_softc *sc = scr->scr_cookie;
491 int32_t x, y, width, height, fg, bg, ul;
492
493 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
494 rasops_unpack_attr(fillattr, &fg, &bg, &ul);
495 if ((row == 0) && (nrows == ri->ri_rows)) {
496 /* clear the whole screen */
497 chipsfb_rectfill(sc, 0, 0, ri->ri_width,
498 ri->ri_height, ri->ri_devcmap[bg]);
499 } else {
500 x = ri->ri_xorigin;
501 y = ri->ri_yorigin + ri->ri_font->fontheight * row;
502 width = ri->ri_emuwidth;
503 height = ri->ri_font->fontheight * nrows;
504 chipsfb_rectfill(sc, x, y, width, height,
505 ri->ri_devcmap[bg]);
506 }
507 }
508 }
509
510 static void
chipsfb_bitblt(struct chipsfb_softc * sc,int xs,int ys,int xd,int yd,int width,int height,uint8_t rop)511 chipsfb_bitblt(struct chipsfb_softc *sc, int xs, int ys, int xd, int yd,
512 int width, int height, uint8_t rop)
513 {
514 uint32_t src, dst, cmd = rop, stride, size;
515
516 cmd |= BLT_PAT_IS_SOLID;
517
518 /* we assume 8 bit for now */
519 src = xs + ys * sc->linebytes;
520 dst = xd + yd * sc->linebytes;
521
522 if (xs < xd) {
523 /* right-to-left operation */
524 cmd |= BLT_START_RIGHT;
525 src += width - 1;
526 dst += width - 1;
527 }
528
529 if (ys < yd) {
530 /* bottom-to-top operation */
531 cmd |= BLT_START_BOTTOM;
532 src += (height - 1) * sc->linebytes;
533 dst += (height - 1) * sc->linebytes;
534 }
535
536 stride = (sc->linebytes << 16) | sc->linebytes;
537 size = (height << 16) | width;
538
539 chipsfb_wait_idle(sc);
540 chipsfb_write32(sc, CT_BLT_STRIDE, stride);
541 chipsfb_write32(sc, CT_BLT_SRCADDR, src);
542 chipsfb_write32(sc, CT_BLT_DSTADDR, dst);
543 chipsfb_write32(sc, CT_BLT_CONTROL, cmd);
544 chipsfb_write32(sc, CT_BLT_SIZE, size);
545 #ifdef CHIPSFB_WAIT
546 chipsfb_wait_idle(sc);
547 #endif
548 }
549
550 static void
chipsfb_rectfill(struct chipsfb_softc * sc,int x,int y,int width,int height,int colour)551 chipsfb_rectfill(struct chipsfb_softc *sc, int x, int y, int width,
552 int height, int colour)
553 {
554 uint32_t dst, cmd, stride, size;
555
556 cmd = BLT_PAT_IS_SOLID | BLT_PAT_IS_MONO | ROP_PAT;
557
558 /* we assume 8 bit for now */
559 dst = x + y * sc->linebytes;
560
561 stride = (sc->linebytes << 16) | sc->linebytes;
562 size = (height << 16) | width;
563
564 chipsfb_wait_idle(sc);
565 chipsfb_write32(sc, CT_BLT_STRIDE, stride);
566 chipsfb_write32(sc, CT_BLT_SRCADDR, dst);
567 chipsfb_write32(sc, CT_BLT_DSTADDR, dst);
568 chipsfb_write32(sc, CT_BLT_CONTROL, cmd);
569 chipsfb_write32(sc, CT_BLT_BG, colour);
570 chipsfb_write32(sc, CT_BLT_FG, colour);
571 chipsfb_write32(sc, CT_BLT_SIZE, size);
572 #ifdef CHIPSFB_WAIT
573 chipsfb_wait_idle(sc);
574 #endif
575 }
576
577 static void
chipsfb_putchar(void * cookie,int row,int col,u_int c,long attr)578 chipsfb_putchar(void *cookie, int row, int col, u_int c, long attr)
579 {
580 struct rasops_info *ri = cookie;
581 struct wsdisplay_font *font = PICK_FONT(ri, c);
582 struct vcons_screen *scr = ri->ri_hw;
583 struct chipsfb_softc *sc = scr->scr_cookie;
584
585 if (__predict_false((unsigned int)row > ri->ri_rows ||
586 (unsigned int)col > ri->ri_cols))
587 return;
588
589 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
590 uint8_t *data;
591 int fg, bg, uc;
592 int x, y, wi, he;
593
594 wi = font->fontwidth;
595 he = font->fontheight;
596
597 if (!CHAR_IN_FONT(c, font))
598 return;
599 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf];
600 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf];
601 x = ri->ri_xorigin + col * wi;
602 y = ri->ri_yorigin + row * he;
603 if (c == 0x20) {
604 chipsfb_rectfill(sc, x, y, wi, he, bg);
605 } else {
606 uc = c - font->firstchar;
607 data = (uint8_t *)font->data + uc *
608 ri->ri_fontscale;
609 chipsfb_setup_mono(sc, x, y, wi, he, fg, bg);
610 chipsfb_feed(sc, font->stride * he, data);
611 }
612 }
613 }
614
615 static void
chipsfb_setup_mono(struct chipsfb_softc * sc,int xd,int yd,int width,int height,uint32_t fg,uint32_t bg)616 chipsfb_setup_mono(struct chipsfb_softc *sc, int xd, int yd, int width,
617 int height, uint32_t fg, uint32_t bg)
618 {
619 uint32_t dst, cmd, stride, size;
620
621 cmd = BLT_PAT_IS_SOLID | BLT_SRC_IS_CPU | BLT_SRC_IS_MONO | ROP_COPY;
622
623 /* we assume 8 bit for now */
624 dst = xd + yd * sc->linebytes;
625
626 stride = (sc->linebytes << 16);
627 size = (height << 16) | width;
628
629 chipsfb_wait_idle(sc);
630 chipsfb_write32(sc, CT_BLT_STRIDE, stride);
631 chipsfb_write32(sc, CT_BLT_EXPCTL, MONO_SRC_ALIGN_BYTE);
632 chipsfb_write32(sc, CT_BLT_DSTADDR, dst);
633 chipsfb_write32(sc, CT_BLT_SRCADDR, 0);
634 chipsfb_write32(sc, CT_BLT_CONTROL, cmd);
635 chipsfb_write32(sc, CT_BLT_BG, bg);
636 chipsfb_write32(sc, CT_BLT_FG, fg);
637 chipsfb_write32(sc, CT_BLT_SIZE, size);
638 }
639
640 static void
chipsfb_feed(struct chipsfb_softc * sc,int count,uint8_t * data)641 chipsfb_feed(struct chipsfb_softc *sc, int count, uint8_t *data)
642 {
643 int i;
644 uint32_t latch = 0, bork;
645 int shift = 0;
646
647 for (i = 0; i < count; i++) {
648 bork = data[i];
649 latch |= (bork << shift);
650 if (shift == 24) {
651 chipsfb_write32(sc, CT_OFF_DATA - CT_OFF_BITBLT, latch);
652 latch = 0;
653 shift = 0;
654 } else
655 shift += 8;
656 }
657
658 if (shift != 0) {
659 chipsfb_write32(sc, CT_OFF_DATA - CT_OFF_BITBLT, latch);
660 }
661
662 /* apparently the chip wants 64bit-aligned data or it won't go idle */
663 if ((count + 3) & 0x04) {
664 chipsfb_write32(sc, CT_OFF_DATA - CT_OFF_BITBLT, 0);
665 }
666 #ifdef CHIPSFB_WAIT
667 chipsfb_wait_idle(sc);
668 #endif
669 }
670
671 #if 0
672 static void
673 chipsfb_showpal(struct chipsfb_softc *sc)
674 {
675 int i, x = 0;
676
677 for (i = 0; i < 16; i++) {
678 chipsfb_rectfill(sc, x, 0, 64, 64, i);
679 x += 64;
680 }
681 }
682 #endif
683
684 #if 0
685 static int
686 chipsfb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp)
687 {
688
689 return 0;
690 }
691 #endif
692
693 static void
chipsfb_restore_palette(struct chipsfb_softc * sc)694 chipsfb_restore_palette(struct chipsfb_softc *sc)
695 {
696 int i;
697
698 for (i = 0; i < 256; i++) {
699 chipsfb_putpalreg(sc,
700 i,
701 sc->sc_cmap_red[i],
702 sc->sc_cmap_green[i],
703 sc->sc_cmap_blue[i]);
704 }
705 }
706
707 /*
708 * wsdisplay_accessops
709 */
710
711 static int
chipsfb_ioctl(void * v,void * vs,u_long cmd,void * data,int flag,struct lwp * l)712 chipsfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
713 struct lwp *l)
714 {
715 struct vcons_data *vd = v;
716 struct chipsfb_softc *sc = vd->cookie;
717 struct wsdisplay_fbinfo *wdf;
718 struct vcons_screen *ms = vd->active;
719
720 switch (cmd) {
721 case WSDISPLAYIO_GTYPE:
722 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC;
723 return 0;
724
725 case WSDISPLAYIO_GINFO:
726 wdf = (void *)data;
727 wdf->height = ms->scr_ri.ri_height;
728 wdf->width = ms->scr_ri.ri_width;
729 wdf->depth = ms->scr_ri.ri_depth;
730 wdf->cmsize = 256;
731 return 0;
732
733 case WSDISPLAYIO_GETCMAP:
734 return chipsfb_getcmap(sc,
735 (struct wsdisplay_cmap *)data);
736
737 case WSDISPLAYIO_PUTCMAP:
738 return chipsfb_putcmap(sc,
739 (struct wsdisplay_cmap *)data);
740
741
742 case WSDISPLAYIO_SMODE: {
743 int new_mode = *(int*)data;
744 if (new_mode != sc->sc_mode) {
745 sc->sc_mode = new_mode;
746 if(new_mode == WSDISPLAYIO_MODE_EMUL) {
747 chipsfb_restore_palette(sc);
748 vcons_redraw_screen(ms);
749 }
750 }
751 }
752 return 0;
753
754 case WSDISPLAYIO_GET_FBINFO: {
755 struct wsdisplayio_fbinfo *fbi = data;
756 return wsdisplayio_get_fbinfo(&ms->scr_ri, fbi);
757 }
758
759 default:
760 if (sc->sc_ioctl != NULL)
761 return sc->sc_ioctl(v, vs, cmd, data, flag, l);
762 }
763 return EPASSTHROUGH;
764 }
765
766 static paddr_t
chipsfb_mmap(void * v,void * vs,off_t offset,int prot)767 chipsfb_mmap(void *v, void *vs, off_t offset, int prot)
768 {
769 struct vcons_data *vd = v;
770 struct chipsfb_softc *sc = vd->cookie;
771 paddr_t pa;
772
773 if (sc->sc_mmap != NULL)
774 return sc->sc_mmap(v, vs, offset, prot);
775
776 /* 'regular' framebuffer mmap()ing */
777 if (offset < sc->memsize) {
778 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
779 BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE);
780 return pa;
781 }
782
783 /*
784 * restrict all other mappings to processes with superuser privileges
785 * or the kernel itself
786 */
787 if (kauth_authorize_machdep(kauth_cred_get(), KAUTH_MACHDEP_UNMANAGEDMEM,
788 NULL, NULL, NULL, NULL) != 0) {
789 aprint_normal_dev(sc->sc_dev, "mmap() rejected.\n");
790 return -1;
791 }
792
793 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) {
794 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
795 BUS_SPACE_MAP_LINEAR);
796 return pa;
797 }
798
799 #ifdef PCI_MAGIC_IO_RANGE
800 /* allow mapping of IO space */
801 if ((offset >= PCI_MAGIC_IO_RANGE) &&
802 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) {
803 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE,
804 0, prot, BUS_SPACE_MAP_LINEAR);
805 return pa;
806 }
807 #endif
808
809 return -1;
810 }
811
812 static void
chipsfb_init_screen(void * cookie,struct vcons_screen * scr,int existing,long * defattr)813 chipsfb_init_screen(void *cookie, struct vcons_screen *scr,
814 int existing, long *defattr)
815 {
816 struct chipsfb_softc *sc = cookie;
817 struct rasops_info *ri = &scr->scr_ri;
818
819 ri->ri_depth = sc->bits_per_pixel;
820 ri->ri_width = sc->width;
821 ri->ri_height = sc->height;
822 ri->ri_stride = sc->width;
823 ri->ri_flg = RI_CENTER | RI_FULLCLEAR | RI_8BIT_IS_RGB;
824
825 ri->ri_bits = bus_space_vaddr(sc->sc_memt, sc->sc_fbh);
826
827 #ifdef CHIPSFB_DEBUG
828 aprint_debug("addr: %08lx\n", (ulong)ri->ri_bits);
829 #endif
830 if (existing) {
831 ri->ri_flg |= RI_CLEAR;
832 }
833
834 rasops_init(ri, 0, 0);
835 ri->ri_caps = WSSCREEN_WSCOLORS;
836
837 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight,
838 sc->width / ri->ri_font->fontwidth);
839
840 ri->ri_hw = scr;
841 ri->ri_ops.copyrows = chipsfb_copyrows;
842 ri->ri_ops.copycols = chipsfb_copycols;
843 ri->ri_ops.eraserows = chipsfb_eraserows;
844 ri->ri_ops.erasecols = chipsfb_erasecols;
845 ri->ri_ops.cursor = chipsfb_cursor;
846 ri->ri_ops.putchar = chipsfb_putchar;
847 }
848
849 #if 0
850 int
851 chipsfb_load_font(void *v, void *cookie, struct wsdisplay_font *data)
852 {
853
854 return 0;
855 }
856 #endif
857
858 static void
chipsfb_init(struct chipsfb_softc * sc)859 chipsfb_init(struct chipsfb_softc *sc)
860 {
861
862 chipsfb_wait_idle(sc);
863
864 /* setup the blitter */
865 }
866
867 uint32_t
chipsfb_probe_vram(struct chipsfb_softc * sc)868 chipsfb_probe_vram(struct chipsfb_softc *sc)
869 {
870 uint32_t ofs = 0x00080000; /* 512kB */
871
872 /*
873 * advance in 0.5MB steps, see if we can read back what we wrote and
874 * if what we wrote to 0 is left untouched. Max. fb size is 4MB so
875 * we voluntarily stop there.
876 */
877 bus_space_write_4(sc->sc_memt, sc->sc_fbh, 0, 0xf0f0f0f0);
878 bus_space_write_4(sc->sc_memt, sc->sc_fbh, ofs, 0x0f0f0f0f);
879 while ((bus_space_read_4(sc->sc_memt, sc->sc_fbh, 0) == 0xf0f0f0f0) &&
880 (bus_space_read_4(sc->sc_memt, sc->sc_fbh, ofs) == 0x0f0f0f0f) &&
881 (ofs < 0x00400000)) {
882
883 ofs += 0x00080000;
884 bus_space_write_4(sc->sc_memt, sc->sc_fbh, ofs, 0x0f0f0f0f);
885 }
886
887 return ofs;
888 }
889