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Expand PMF_FN_* macros.
[netbsd-mini2440.git] / sys / dev / pci / voodoofb.c
blobbf334f389def8ec02fee0bd00d62fde9f34a63dd
1 /* $NetBSD: voodoofb.c,v 1.20 2009/08/20 02:40:57 macallan Exp $ */
2
3 /*
4 * Copyright (c) 2005, 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 3Dfx Voodoo3 graphics boards
30 * Thanks to Andreas Drewke (andreas_dr@gmx.de) for his Voodoo3 driver for BeOS
31 * which I used as reference / documentation
32 */
33
34 #include <sys/cdefs.h>
35 __KERNEL_RCSID(0, "$NetBSD: voodoofb.c,v 1.20 2009/08/20 02:40:57 macallan Exp $");
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/kernel.h>
40 #include <sys/device.h>
41 #include <sys/malloc.h>
42 #include <sys/callout.h>
43 #include <sys/kauth.h>
44
45 #include <uvm/uvm_extern.h>
46
47 #if defined(macppc) || defined (sparc64) || defined(ofppc)
48 #define HAVE_OPENFIRMWARE
49 #endif
50
51 /* XXX should be configurable */
52 #define VOODOOFB_VIDEOMODE 15
53
54 #ifdef HAVE_OPENFIRMWARE
55 #include <dev/ofw/openfirm.h>
56 #include <dev/ofw/ofw_pci.h>
57 #endif
58
59 #include <dev/videomode/videomode.h>
60
61 #include <dev/pci/pcivar.h>
62 #include <dev/pci/pcireg.h>
63 #include <dev/pci/pcidevs.h>
64 #include <dev/pci/pciio.h>
65 #include <dev/pci/voodoofbreg.h>
66
67 #include <dev/wscons/wsdisplayvar.h>
68 #include <dev/wscons/wsconsio.h>
69 #include <dev/wsfont/wsfont.h>
70 #include <dev/rasops/rasops.h>
71 #include <dev/wscons/wsdisplay_vconsvar.h>
72
73 #include "opt_wsemul.h"
74
75 struct voodoofb_softc {
76 device_t sc_dev;
77 pci_chipset_tag_t sc_pc;
78 pcitag_t sc_pcitag;
79 struct pci_attach_args sc_pa;
80
81 bus_space_tag_t sc_memt;
82 bus_space_tag_t sc_iot;
83 bus_space_handle_t sc_memh;
84
85 bus_space_tag_t sc_regt;
86 bus_space_tag_t sc_fbt;
87 bus_space_tag_t sc_ioregt;
88 bus_space_handle_t sc_regh;
89 bus_space_handle_t sc_fbh;
90 bus_space_handle_t sc_ioregh;
91 bus_addr_t sc_regs, sc_fb, sc_ioreg;
92 bus_size_t sc_regsize, sc_fbsize, sc_ioregsize;
93
94 void *sc_ih;
95
96 size_t memsize;
97 int memtype;
98
99 int bits_per_pixel;
100 int width, height, linebytes;
101
102 int sc_mode;
103 uint32_t sc_bg;
104
105 u_char sc_cmap_red[256];
106 u_char sc_cmap_green[256];
107 u_char sc_cmap_blue[256];
108 int sc_dacw;
109
110 struct vcons_data vd;
111 };
112
113 struct voodoo_regs {
114 uint8_t vr_crtc[31];
115 uint8_t vr_graph[9];
116 uint8_t vr_attr[21];
117 uint8_t vr_seq[5];
118 };
119
120 static struct vcons_screen voodoofb_console_screen;
121
122 extern const u_char rasops_cmap[768];
123
124 static int voodoofb_match(device_t, cfdata_t, void *);
125 static void voodoofb_attach(device_t, device_t, void *);
126
127 static int voodoofb_drm_print(void *, const char *);
128 static int voodoofb_drm_unmap(struct voodoofb_softc *);
129 static int voodoofb_drm_map(struct voodoofb_softc *);
130
131 CFATTACH_DECL_NEW(voodoofb, sizeof(struct voodoofb_softc), voodoofb_match,
132 voodoofb_attach, NULL, NULL);
133
134 static int voodoofb_is_console(struct pci_attach_args *);
135 static void voodoofb_init(struct voodoofb_softc *);
136
137 static void voodoofb_cursor(void *, int, int, int);
138 static void voodoofb_putchar(void *, int, int, u_int, long);
139 static void voodoofb_copycols(void *, int, int, int, int);
140 static void voodoofb_erasecols(void *, int, int, int, long);
141 static void voodoofb_copyrows(void *, int, int, int);
142 static void voodoofb_eraserows(void *, int, int, long);
143
144 #if 0
145 static int voodoofb_allocattr(void *, int, int, int, long *);
146 static void voodoofb_scroll(void *, void *, int);
147 static int voodoofb_load_font(void *, void *, struct wsdisplay_font *);
148 #endif
149
150 static int voodoofb_putcmap(struct voodoofb_softc *,
151 struct wsdisplay_cmap *);
152 static int voodoofb_getcmap(struct voodoofb_softc *,
153 struct wsdisplay_cmap *);
154 static int voodoofb_putpalreg(struct voodoofb_softc *, uint8_t, uint8_t,
155 uint8_t, uint8_t);
156 static void voodoofb_bitblt(struct voodoofb_softc *, int, int, int, int,
157 int, int);
158 static void voodoofb_rectfill(struct voodoofb_softc *, int, int, int, int,
159 int);
160 static void voodoofb_rectinvert(struct voodoofb_softc *, int, int, int,
161 int);
162 static void voodoofb_setup_mono(struct voodoofb_softc *, int, int, int,
163 int, uint32_t, uint32_t);
164 static void voodoofb_feed_line(struct voodoofb_softc *, int, uint8_t *);
165
166 #ifdef VOODOOFB_DEBUG
167 static void voodoofb_showpal(struct voodoofb_softc *);
168 #endif
169
170 static void voodoofb_wait_idle(struct voodoofb_softc *);
171
172 #ifdef VOODOOFB_ENABLE_INTR
173 static int voodoofb_intr(void *);
174 #endif
175
176 static void voodoofb_set_videomode(struct voodoofb_softc *,
177 const struct videomode *);
178
179 struct wsscreen_descr voodoofb_defaultscreen = {
180 "default",
181 0, 0,
182 NULL,
183 8, 16,
184 WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
185 NULL,
186 };
187
188 const struct wsscreen_descr *_voodoofb_scrlist[] = {
189 &voodoofb_defaultscreen,
190 /* XXX other formats, graphics screen? */
191 };
192
193 struct wsscreen_list voodoofb_screenlist = {
194 sizeof(_voodoofb_scrlist) / sizeof(struct wsscreen_descr *), _voodoofb_scrlist
195 };
196
197 static int voodoofb_ioctl(void *, void *, u_long, void *, int,
198 struct lwp *);
199 static paddr_t voodoofb_mmap(void *, void *, off_t, int);
200
201 static void voodoofb_clearscreen(struct voodoofb_softc *);
202 static void voodoofb_init_screen(void *, struct vcons_screen *, int,
203 long *);
204
205
206 struct wsdisplay_accessops voodoofb_accessops = {
207 voodoofb_ioctl,
208 voodoofb_mmap,
209 NULL,
210 NULL,
211 NULL,
212 NULL, /* load_font */
213 NULL, /* polls */
214 NULL, /* scroll */
215 };
216
217 /*
218 * Inline functions for getting access to register aperture.
219 */
220 static inline void
221 voodoo3_write32(struct voodoofb_softc *sc, uint32_t reg, uint32_t val)
222 {
223 bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, val);
224 }
225
226 static inline uint32_t
227 voodoo3_read32(struct voodoofb_softc *sc, uint32_t reg)
228 {
229 return bus_space_read_4(sc->sc_regt, sc->sc_regh, reg);
230 }
231
232 static inline void
233 voodoo3_write_crtc(struct voodoofb_softc *sc, uint8_t reg, uint8_t val)
234 {
235 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_INDEX - 0x300, reg);
236 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_DATA - 0x300, val);
237 }
238
239 static inline void
240 voodoo3_write_seq(struct voodoofb_softc *sc, uint8_t reg, uint8_t val)
241 {
242 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_INDEX - 0x300, reg);
243 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_DATA - 0x300, val);
244 }
245
246 static inline void
247 voodoo3_write_gra(struct voodoofb_softc *sc, uint8_t reg, uint8_t val)
248 {
249 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_INDEX - 0x300, reg);
250 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_DATA - 0x300, val);
251 }
252
253 static inline void
254 voodoo3_write_attr(struct voodoofb_softc *sc, uint8_t reg, uint8_t val)
255 {
256 volatile uint8_t junk;
257 uint8_t index;
258
259 junk = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, IS1_R - 0x300);
260 index = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300);
261 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, reg);
262 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, val);
263 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, index);
264 }
265
266 static inline void
267 vga_outb(struct voodoofb_softc *sc, uint32_t reg, uint8_t val)
268 {
269 bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, reg - 0x300, val);
270 }
271
272 /* wait until there's room for len bytes in the FIFO */
273 static inline void
274 voodoo3_make_room(struct voodoofb_softc *sc, int len)
275 {
276 while ((voodoo3_read32(sc, STATUS) & 0x1f) < len);
277 }
278
279 static void
280 voodoofb_wait_idle(struct voodoofb_softc *sc)
281 {
282 int i = 0;
283
284 voodoo3_make_room(sc, 1);
285 voodoo3_write32(sc, COMMAND_3D, COMMAND_3D_NOP);
286
287 while (1) {
288 i = (voodoo3_read32(sc, STATUS) & STATUS_BUSY) ? 0 : i + 1;
289 if(i == 3) break;
290 }
291 }
292
293 static int
294 voodoofb_match(device_t parent, cfdata_t match, void *aux)
295 {
296 struct pci_attach_args *pa = (struct pci_attach_args *)aux;
297
298 if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY ||
299 PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA)
300 return 0;
301 if ((PCI_VENDOR(pa->pa_id)==PCI_VENDOR_3DFX) &&
302 (PCI_PRODUCT(pa->pa_id)>=PCI_PRODUCT_3DFX_VOODOO3))
303 return 100;
304 return 0;
305 }
306
307 static void
308 voodoofb_attach(device_t parent, device_t self, void *aux)
309 {
310 struct voodoofb_softc *sc = device_private(self);
311 struct pci_attach_args *pa = aux;
312 char devinfo[256];
313 struct wsemuldisplaydev_attach_args aa;
314 struct rasops_info *ri;
315 #ifdef VOODOOFB_ENABLE_INTR
316 pci_intr_handle_t ih;
317 const char *intrstr;
318 #endif
319 ulong defattr;
320 int console, width, height, i, j;
321 #ifdef HAVE_OPENFIRMWARE
322 int linebytes, depth, node;
323 #endif
324 uint32_t bg, fg, ul;
325
326 sc->sc_dev = self;
327
328 sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
329 #ifdef HAVE_OPENFIRMWARE
330 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag);
331 #endif
332 sc->sc_pc = pa->pa_pc;
333 sc->sc_pcitag = pa->pa_tag;
334 sc->sc_dacw = -1;
335 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
336 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
337
338 sc->sc_memt = pa->pa_memt;
339 sc->sc_iot = pa->pa_iot;
340 sc->sc_pa = *pa;
341
342 /* the framebuffer */
343 if (pci_mapreg_map(pa, 0x14, PCI_MAPREG_TYPE_MEM,
344 BUS_SPACE_MAP_CACHEABLE | BUS_SPACE_MAP_PREFETCHABLE |
345 BUS_SPACE_MAP_LINEAR,
346 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) {
347 aprint_error_dev(self, "failed to map the frame buffer.\n");
348 }
349
350 /* memory-mapped registers */
351 if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM, 0,
352 &sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) {
353 aprint_error_dev(self, "failed to map memory-mapped registers.\n");
354 }
355
356 /* IO-mapped registers */
357 if (pci_mapreg_map(pa, 0x18, PCI_MAPREG_TYPE_IO, 0,
358 &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg,
359 &sc->sc_ioregsize)) {
360 aprint_error_dev(self, "failed to map IO-mapped registers.\n");
361 }
362 voodoofb_init(sc);
363
364 /* we should read these from the chip instead of depending on OF */
365 width = height = -1;
366
367 #ifdef HAVE_OPENFIRMWARE
368 if (OF_getprop(node, "width", &width, 4) != 4)
369 OF_interpret("screen-width", 1, 1, &width);
370 if (OF_getprop(node, "height", &height, 4) != 4)
371 OF_interpret("screen-height", 1, 1, &height);
372 if (OF_getprop(node, "linebytes", &linebytes, 4) != 4)
373 linebytes = width; /* XXX */
374 if (OF_getprop(node, "depth", &depth, 4) != 4)
375 depth = 8; /* XXX */
376
377 if (width == -1 || height == -1)
378 return;
379
380 sc->width = width;
381 sc->height = height;
382 sc->bits_per_pixel = depth;
383 sc->linebytes = linebytes;
384 printf("%s: initial resolution %dx%d, %d bit\n", device_xname(self),
385 sc->width, sc->height, sc->bits_per_pixel);
386 #endif
387
388 /* XXX this should at least be configurable via kernel config */
389 voodoofb_set_videomode(sc, &videomode_list[VOODOOFB_VIDEOMODE]);
390
391 vcons_init(&sc->vd, sc, &voodoofb_defaultscreen, &voodoofb_accessops);
392 sc->vd.init_screen = voodoofb_init_screen;
393
394 console = voodoofb_is_console(pa);
395
396 ri = &voodoofb_console_screen.scr_ri;
397 if (console) {
398 vcons_init_screen(&sc->vd, &voodoofb_console_screen, 1,
399 &defattr);
400 voodoofb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
401
402 voodoofb_defaultscreen.textops = &ri->ri_ops;
403 voodoofb_defaultscreen.capabilities = ri->ri_caps;
404 voodoofb_defaultscreen.nrows = ri->ri_rows;
405 voodoofb_defaultscreen.ncols = ri->ri_cols;
406 wsdisplay_cnattach(&voodoofb_defaultscreen, ri, 0, 0, defattr);
407 } else {
408 /*
409 * since we're not the console we can postpone the rest
410 * until someone actually allocates a screen for us
411 */
412 voodoofb_set_videomode(sc, &videomode_list[0]);
413 }
414
415 printf("%s: %d MB aperture at 0x%08x, %d MB registers at 0x%08x\n",
416 device_xname(self), (u_int)(sc->sc_fbsize >> 20),
417 (u_int)sc->sc_fb, (u_int)(sc->sc_regsize >> 20),
418 (u_int)sc->sc_regs);
419 #ifdef VOODOOFB_DEBUG
420 printf("fb: %08lx\n", (ulong)ri->ri_bits);
421 #endif
422
423 j = 0;
424 for (i = 0; i < 256; i++) {
425 voodoofb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1],
426 rasops_cmap[j + 2]);
427 j += 3;
428 }
429
430 #ifdef VOODOOFB_ENABLE_INTR
431 /* Interrupt. We don't use it for anything yet */
432 if (pci_intr_map(pa, &ih)) {
433 aprint_error_dev(self, "failed to map interrupt\n");
434 return;
435 }
436
437 intrstr = pci_intr_string(sc->sc_pc, ih);
438 sc->sc_ih = pci_intr_establish(sc->sc_pc, ih, IPL_NET, voodoofb_intr,
439 sc);
440 if (sc->sc_ih == NULL) {
441 aprint_error_dev(self, "failed to establish interrupt");
442 if (intrstr != NULL)
443 aprint_error(" at %s", intrstr);
444 aprint_error("\n");
445 return;
446 }
447 aprint_normal_dev(self, "interrupting at %s\n", intrstr);
448 #endif
449
450 rasops_unpack_attr(defattr, &fg, &bg, &ul);
451 sc->sc_bg = ri->ri_devcmap[bg];
452 voodoofb_clearscreen(sc);
453
454 if (console)
455 vcons_replay_msgbuf(&voodoofb_console_screen);
456 aa.console = console;
457 aa.scrdata = &voodoofb_screenlist;
458 aa.accessops = &voodoofb_accessops;
459 aa.accesscookie = &sc->vd;
460
461 config_found(self, &aa, wsemuldisplaydevprint);
462 config_found_ia(self, "drm", aux, voodoofb_drm_print);
463 }
464
465 static int
466 voodoofb_drm_print(void *opaque, const char *pnp)
467 {
468 if (pnp)
469 aprint_normal("drm at %s", pnp);
470
471 return UNCONF;
472 }
473
474 static int
475 voodoofb_drm_unmap(struct voodoofb_softc *sc)
476 {
477 printf("%s: releasing bus resources\n", device_xname(sc->sc_dev));
478
479 bus_space_unmap(sc->sc_ioregt, sc->sc_ioregh, sc->sc_ioregsize);
480 bus_space_unmap(sc->sc_regt, sc->sc_regh, sc->sc_regsize);
481 bus_space_unmap(sc->sc_fbt, sc->sc_fbh, sc->sc_fbsize);
482
483 return 0;
484 }
485
486 static int
487 voodoofb_drm_map(struct voodoofb_softc *sc)
488 {
489 if (pci_mapreg_map(&sc->sc_pa, 0x14, PCI_MAPREG_TYPE_MEM,
490 BUS_SPACE_MAP_CACHEABLE | BUS_SPACE_MAP_PREFETCHABLE |
491 BUS_SPACE_MAP_LINEAR,
492 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) {
493 aprint_error_dev(sc->sc_dev, "failed to map the frame buffer.\n");
494 }
495
496 /* memory-mapped registers */
497 if (pci_mapreg_map(&sc->sc_pa, 0x10, PCI_MAPREG_TYPE_MEM, 0,
498 &sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) {
499 aprint_error_dev(sc->sc_dev, "failed to map memory-mapped registers.\n");
500 }
501
502 /* IO-mapped registers */
503 if (pci_mapreg_map(&sc->sc_pa, 0x18, PCI_MAPREG_TYPE_IO, 0,
504 &sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg,
505 &sc->sc_ioregsize)) {
506 aprint_error_dev(sc->sc_dev, "failed to map IO-mapped registers.\n");
507 }
508
509 voodoofb_init(sc);
510 /* XXX this should at least be configurable via kernel config */
511 voodoofb_set_videomode(sc, &videomode_list[VOODOOFB_VIDEOMODE]);
512
513 return 0;
514 }
515
516 static int
517 voodoofb_putpalreg(struct voodoofb_softc *sc, uint8_t index, uint8_t r,
518 uint8_t g, uint8_t b)
519 {
520 uint32_t color;
521
522 sc->sc_cmap_red[index] = r;
523 sc->sc_cmap_green[index] = g;
524 sc->sc_cmap_blue[index] = b;
525
526 color = (r << 16) | (g << 8) | b;
527 voodoo3_make_room(sc, 2);
528 voodoo3_write32(sc, DACADDR, index);
529 voodoo3_write32(sc, DACDATA, color);
530
531 return 0;
532 }
533
534 static int
535 voodoofb_putcmap(struct voodoofb_softc *sc, struct wsdisplay_cmap *cm)
536 {
537 u_char *r, *g, *b;
538 u_int index = cm->index;
539 u_int count = cm->count;
540 int i, error;
541 u_char rbuf[256], gbuf[256], bbuf[256];
542
543 #ifdef VOODOOFB_DEBUG
544 printf("putcmap: %d %d\n",index, count);
545 #endif
546 if (cm->index >= 256 || cm->count > 256 ||
547 (cm->index + cm->count) > 256)
548 return EINVAL;
549 error = copyin(cm->red, &rbuf[index], count);
550 if (error)
551 return error;
552 error = copyin(cm->green, &gbuf[index], count);
553 if (error)
554 return error;
555 error = copyin(cm->blue, &bbuf[index], count);
556 if (error)
557 return error;
558
559 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count);
560 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count);
561 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count);
562
563 r = &sc->sc_cmap_red[index];
564 g = &sc->sc_cmap_green[index];
565 b = &sc->sc_cmap_blue[index];
566
567 for (i = 0; i < count; i++) {
568 voodoofb_putpalreg(sc, index, *r, *g, *b);
569 index++;
570 r++, g++, b++;
571 }
572 return 0;
573 }
574
575 static int
576 voodoofb_getcmap(struct voodoofb_softc *sc, struct wsdisplay_cmap *cm)
577 {
578 u_int index = cm->index;
579 u_int count = cm->count;
580 int error;
581
582 if (index >= 255 || count > 256 || index + count > 256)
583 return EINVAL;
584
585 error = copyout(&sc->sc_cmap_red[index], cm->red, count);
586 if (error)
587 return error;
588 error = copyout(&sc->sc_cmap_green[index], cm->green, count);
589 if (error)
590 return error;
591 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count);
592 if (error)
593 return error;
594
595 return 0;
596 }
597
598 static int
599 voodoofb_is_console(struct pci_attach_args *pa)
600 {
601
602 #ifdef HAVE_OPENFIRMWARE
603 /* check if we're the /chosen console device */
604 int chosen, stdout, node, us;
605
606 us=pcidev_to_ofdev(pa->pa_pc, pa->pa_tag);
607 chosen = OF_finddevice("/chosen");
608 OF_getprop(chosen, "stdout", &stdout, 4);
609 node = OF_instance_to_package(stdout);
610 return(us == node);
611 #else
612 /* XXX how do we know we're console on i386? */
613 return 1;
614 #endif
615 }
616
617 static void
618 voodoofb_clearscreen(struct voodoofb_softc *sc)
619 {
620 voodoofb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg);
621 }
622
623 /*
624 * wsdisplay_emulops
625 */
626
627 static void
628 voodoofb_cursor(void *cookie, int on, int row, int col)
629 {
630 struct rasops_info *ri = cookie;
631 struct vcons_screen *scr = ri->ri_hw;
632 struct voodoofb_softc *sc = scr->scr_cookie;
633 int x, y, wi, he;
634
635 wi = ri->ri_font->fontwidth;
636 he = ri->ri_font->fontheight;
637
638 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
639 x = ri->ri_ccol * wi + ri->ri_xorigin;
640 y = ri->ri_crow * he + ri->ri_yorigin;
641 if (ri->ri_flg & RI_CURSOR) {
642 voodoofb_rectinvert(sc, x, y, wi, he);
643 ri->ri_flg &= ~RI_CURSOR;
644 }
645 ri->ri_crow = row;
646 ri->ri_ccol = col;
647 if (on)
648 {
649 x = ri->ri_ccol * wi + ri->ri_xorigin;
650 y = ri->ri_crow * he + ri->ri_yorigin;
651 voodoofb_rectinvert(sc, x, y, wi, he);
652 ri->ri_flg |= RI_CURSOR;
653 }
654 } else {
655 ri->ri_flg &= ~RI_CURSOR;
656 ri->ri_crow = row;
657 ri->ri_ccol = col;
658 }
659 }
660
661 #if 0
662 int
663 voodoofb_mapchar(void *cookie, int uni, u_int *index)
664 {
665 return 0;
666 }
667 #endif
668
669 static void
670 voodoofb_putchar(void *cookie, int row, int col, u_int c, long attr)
671 {
672 struct rasops_info *ri = cookie;
673 struct vcons_screen *scr = ri->ri_hw;
674 struct voodoofb_softc *sc = scr->scr_cookie;
675
676 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
677 uint8_t *data;
678 int fg, bg, uc, i;
679 int x, y, wi, he;
680
681 wi = ri->ri_font->fontwidth;
682 he = ri->ri_font->fontheight;
683
684 if (!CHAR_IN_FONT(c, ri->ri_font))
685 return;
686 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf];
687 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf];
688 x = ri->ri_xorigin + col * wi;
689 y = ri->ri_yorigin + row * he;
690 if (c == 0x20) {
691 voodoofb_rectfill(sc, x, y, wi, he, bg);
692 } else {
693 uc = c-ri->ri_font->firstchar;
694 data = (uint8_t *)ri->ri_font->data + uc *
695 ri->ri_fontscale;
696 voodoofb_setup_mono(sc, x, y, wi, he, fg, bg);
697 for (i = 0; i < he; i++) {
698 voodoofb_feed_line(sc,
699 ri->ri_font->stride, data);
700 data += ri->ri_font->stride;
701 }
702 }
703 }
704 }
705
706 static void
707 voodoofb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
708 {
709 struct rasops_info *ri = cookie;
710 struct vcons_screen *scr = ri->ri_hw;
711 struct voodoofb_softc *sc = scr->scr_cookie;
712 int32_t xs, xd, y, width, height;
713
714 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
715 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
716 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
717 y = ri->ri_yorigin + ri->ri_font->fontheight * row;
718 width = ri->ri_font->fontwidth * ncols;
719 height = ri->ri_font->fontheight;
720 voodoofb_bitblt(sc, xs, y, xd, y, width, height);
721 }
722 }
723
724 static void
725 voodoofb_erasecols(void *cookie, int row, int startcol, int ncols,
726 long fillattr)
727 {
728 struct rasops_info *ri = cookie;
729 struct vcons_screen *scr = ri->ri_hw;
730 struct voodoofb_softc *sc = scr->scr_cookie;
731 int32_t x, y, width, height, fg, bg, ul;
732
733 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
734 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
735 y = ri->ri_yorigin + ri->ri_font->fontheight * row;
736 width = ri->ri_font->fontwidth * ncols;
737 height = ri->ri_font->fontheight;
738 rasops_unpack_attr(fillattr, &fg, &bg, &ul);
739
740 voodoofb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
741 }
742 }
743
744 static void
745 voodoofb_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
746 {
747 struct rasops_info *ri = cookie;
748 struct vcons_screen *scr = ri->ri_hw;
749 struct voodoofb_softc *sc = scr->scr_cookie;
750 int32_t x, ys, yd, width, height;
751
752 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
753 x = ri->ri_xorigin;
754 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
755 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
756 width = ri->ri_emuwidth;
757 height = ri->ri_font->fontheight * nrows;
758 voodoofb_bitblt(sc, x, ys, x, yd, width, height);
759 }
760 }
761
762 static void
763 voodoofb_eraserows(void *cookie, int row, int nrows, long fillattr)
764 {
765 struct rasops_info *ri = cookie;
766 struct vcons_screen *scr = ri->ri_hw;
767 struct voodoofb_softc *sc = scr->scr_cookie;
768 int32_t x, y, width, height, fg, bg, ul;
769
770 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
771 rasops_unpack_attr(fillattr, &fg, &bg, &ul);
772 if ((row == 0) && (nrows == ri->ri_rows)) {
773 /* clear the whole screen */
774 voodoofb_rectfill(sc, 0, 0, ri->ri_width,
775 ri->ri_height, ri->ri_devcmap[bg]);
776 } else {
777 x = ri->ri_xorigin;
778 y = ri->ri_yorigin + ri->ri_font->fontheight * row;
779 width = ri->ri_emuwidth;
780 height = ri->ri_font->fontheight * nrows;
781 voodoofb_rectfill(sc, x, y, width, height,
782 ri->ri_devcmap[bg]);
783 }
784 }
785 }
786
787 static void
788 voodoofb_bitblt(struct voodoofb_softc *sc, int xs, int ys, int xd, int yd, int width, int height)
789 {
790 uint32_t fmt, blitcmd;
791
792 fmt = sc->linebytes | ((sc->bits_per_pixel +
793 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13);
794 blitcmd = COMMAND_2D_S2S_BITBLT | (ROP_COPY << 24);
795
796 if (xs <= xd) {
797 blitcmd |= BIT(14);
798 xs += (width - 1);
799 xd += (width - 1);
800 }
801 if (ys <= yd) {
802 blitcmd |= BIT(15);
803 ys += (height - 1);
804 yd += (height - 1);
805 }
806 voodoo3_make_room(sc, 6);
807
808 voodoo3_write32(sc, SRCFORMAT, fmt);
809 voodoo3_write32(sc, DSTFORMAT, fmt);
810 voodoo3_write32(sc, DSTSIZE, width | (height << 16));
811 voodoo3_write32(sc, DSTXY, xd | (yd << 16));
812 voodoo3_write32(sc, SRCXY, xs | (ys << 16));
813 voodoo3_write32(sc, COMMAND_2D, blitcmd | SST_2D_GO);
814 }
815
816 static void
817 voodoofb_rectfill(struct voodoofb_softc *sc, int x, int y, int width,
818 int height, int colour)
819 {
820 uint32_t fmt, col;
821
822 col = (colour << 24) | (colour << 16) | (colour << 8) | colour;
823 fmt = sc->linebytes | ((sc->bits_per_pixel +
824 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13);
825
826 voodoo3_make_room(sc, 6);
827 voodoo3_write32(sc, DSTFORMAT, fmt);
828 voodoo3_write32(sc, COLORFORE, colour);
829 voodoo3_write32(sc, COLORBACK, colour);
830 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | (ROP_COPY << 24));
831 voodoo3_write32(sc, DSTSIZE, width | (height << 16));
832 voodoo3_write32(sc, LAUNCH_2D, x | (y << 16));
833 }
834
835 static void
836 voodoofb_rectinvert(struct voodoofb_softc *sc, int x, int y, int width,
837 int height)
838 {
839 uint32_t fmt;
840
841 fmt = sc->linebytes | ((sc->bits_per_pixel +
842 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13);
843
844 voodoo3_make_room(sc, 6);
845 voodoo3_write32(sc, DSTFORMAT, fmt);
846 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT |
847 (ROP_INVERT << 24));
848 voodoo3_write32(sc, DSTSIZE, width | (height << 16));
849 voodoo3_write32(sc, DSTXY, x | (y << 16));
850 voodoo3_write32(sc, LAUNCH_2D, x | (y << 16));
851 }
852
853 static void
854 voodoofb_setup_mono(struct voodoofb_softc *sc, int xd, int yd, int width, int height, uint32_t fg,
855 uint32_t bg)
856 {
857 uint32_t dfmt, sfmt = sc->linebytes;
858
859 dfmt = sc->linebytes | ((sc->bits_per_pixel +
860 ((sc->bits_per_pixel == 8) ? 0 : 8)) << 13);
861
862 voodoo3_make_room(sc, 9);
863 voodoo3_write32(sc, SRCFORMAT, sfmt);
864 voodoo3_write32(sc, DSTFORMAT, dfmt);
865 voodoo3_write32(sc, COLORFORE, fg);
866 voodoo3_write32(sc, COLORBACK, bg);
867 voodoo3_write32(sc, DSTSIZE, width | (height << 16));
868 voodoo3_write32(sc, DSTXY, xd | (yd << 16));
869 voodoo3_write32(sc, SRCXY, 0);
870 voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_H2S_BITBLT |
871 (ROP_COPY << 24) | SST_2D_GO);
872
873 /* now feed the data into the chip */
874 }
875
876 static void
877 voodoofb_feed_line(struct voodoofb_softc *sc, int count, uint8_t *data)
878 {
879 int i;
880 uint32_t latch = 0, bork;
881 int shift = 0;
882
883 voodoo3_make_room(sc, count);
884 for (i = 0; i < count; i++) {
885 bork = data[i];
886 latch |= (bork << shift);
887 if (shift == 24) {
888 voodoo3_write32(sc, LAUNCH_2D, latch);
889 latch = 0;
890 shift = 0;
891 } else
892 shift += 8;
893 }
894 if (shift != 24)
895 voodoo3_write32(sc, LAUNCH_2D, latch);
896 }
897
898 #ifdef VOODOOFB_DEBUG
899 static void
900 voodoofb_showpal(struct voodoofb_softc *sc)
901 {
902 int i, x = 0;
903
904 for (i = 0; i < 16; i++) {
905 voodoofb_rectfill(sc, x, 0, 64, 64, i);
906 x += 64;
907 }
908 }
909 #endif
910
911 #if 0
912 static int
913 voodoofb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp)
914 {
915
916 return 0;
917 }
918 #endif
919
920 /*
921 * wsdisplay_accessops
922 */
923
924 static int
925 voodoofb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
926 struct lwp *l)
927 {
928 struct vcons_data *vd = v;
929 struct voodoofb_softc *sc = vd->cookie;
930 struct wsdisplay_fbinfo *wdf;
931 struct vcons_screen *ms = vd->active;
932
933 switch (cmd) {
934 case WSDISPLAYIO_GTYPE:
935 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC;
936 return 0;
937
938 case WSDISPLAYIO_GINFO:
939 wdf = (void *)data;
940 wdf->height = ms->scr_ri.ri_height;
941 wdf->width = ms->scr_ri.ri_width;
942 wdf->depth = ms->scr_ri.ri_depth;
943 wdf->cmsize = 256;
944 return 0;
945
946 case WSDISPLAYIO_GETCMAP:
947 return voodoofb_getcmap(sc,
948 (struct wsdisplay_cmap *)data);
949
950 case WSDISPLAYIO_PUTCMAP:
951 return voodoofb_putcmap(sc,
952 (struct wsdisplay_cmap *)data);
953
954 /* PCI config read/write passthrough. */
955 case PCI_IOC_CFGREAD:
956 case PCI_IOC_CFGWRITE:
957 return (pci_devioctl(sc->sc_pc, sc->sc_pcitag,
958 cmd, data, flag, l));
959
960 case WSDISPLAYIO_SMODE:
961 {
962 int new_mode = *(int*)data;
963 if (new_mode != sc->sc_mode)
964 {
965 sc->sc_mode = new_mode;
966 if(new_mode == WSDISPLAYIO_MODE_EMUL)
967 {
968 voodoofb_drm_map(sc);
969 int i;
970
971 /* restore the palette */
972 for (i = 0; i < 256; i++) {
973 voodoofb_putpalreg(sc,
974 i,
975 sc->sc_cmap_red[i],
976 sc->sc_cmap_green[i],
977 sc->sc_cmap_blue[i]);
978 }
979 vcons_redraw_screen(ms);
980 } else
981 voodoofb_drm_unmap(sc);
982 }
983 }
984 return 0;
985 }
986 return EPASSTHROUGH;
987 }
988
989 static paddr_t
990 voodoofb_mmap(void *v, void *vs, off_t offset, int prot)
991 {
992 struct vcons_data *vd = v;
993 struct voodoofb_softc *sc = vd->cookie;
994 paddr_t pa;
995
996 /* 'regular' framebuffer mmap()ing */
997 if (offset < sc->sc_fbsize) {
998 pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot,
999 BUS_SPACE_MAP_LINEAR);
1000 return pa;
1001 }
1002
1003 /*
1004 * restrict all other mappings to processes with superuser privileges
1005 * or the kernel itself
1006 */
1007 if (kauth_authorize_generic(kauth_cred_get(), KAUTH_GENERIC_ISSUSER,
1008 NULL) != 0) {
1009 aprint_error_dev(sc->sc_dev, "mmap() rejected.\n");
1010 return -1;
1011 }
1012
1013 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) {
1014 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
1015 BUS_SPACE_MAP_LINEAR);
1016 return pa;
1017 }
1018
1019 if ((offset >= sc->sc_regs) && (offset < (sc->sc_regs +
1020 sc->sc_regsize))) {
1021 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
1022 BUS_SPACE_MAP_LINEAR);
1023 return pa;
1024 }
1025
1026 #ifdef PCI_MAGIC_IO_RANGE
1027 /* allow mapping of IO space */
1028 if ((offset >= PCI_MAGIC_IO_RANGE) &&\
1029 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) {
1030 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE,
1031 0, prot, BUS_SPACE_MAP_LINEAR);
1032 return pa;
1033 }
1034 #endif
1035
1036 #ifdef OFB_ALLOW_OTHERS
1037 if (offset >= 0x80000000) {
1038 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
1039 BUS_SPACE_MAP_LINEAR);
1040 return pa;
1041 }
1042 #endif
1043 return -1;
1044 }
1045
1046 static void
1047 voodoofb_init_screen(void *cookie, struct vcons_screen *scr,
1048 int existing, long *defattr)
1049 {
1050 struct voodoofb_softc *sc = cookie;
1051 struct rasops_info *ri = &scr->scr_ri;
1052
1053 ri->ri_depth = sc->bits_per_pixel;
1054 ri->ri_width = sc->width;
1055 ri->ri_height = sc->height;
1056 ri->ri_stride = sc->width;
1057 ri->ri_flg = RI_CENTER | RI_FULLCLEAR;
1058
1059 ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh);
1060
1061 #ifdef VOODOOFB_DEBUG
1062 printf("addr: %08lx\n", (ulong)ri->ri_bits);
1063 #endif
1064 if (existing) {
1065 ri->ri_flg |= RI_CLEAR;
1066 }
1067
1068 rasops_init(ri, sc->height/8, sc->width/8);
1069 ri->ri_caps = WSSCREEN_WSCOLORS;
1070
1071 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight,
1072 sc->width / ri->ri_font->fontwidth);
1073
1074 ri->ri_hw = scr;
1075 ri->ri_ops.copyrows = voodoofb_copyrows;
1076 ri->ri_ops.copycols = voodoofb_copycols;
1077 ri->ri_ops.eraserows = voodoofb_eraserows;
1078 ri->ri_ops.erasecols = voodoofb_erasecols;
1079 ri->ri_ops.cursor = voodoofb_cursor;
1080 ri->ri_ops.putchar = voodoofb_putchar;
1081 }
1082
1083 #if 0
1084 int
1085 voodoofb_load_font(void *v, void *cookie, struct wsdisplay_font *data)
1086 {
1087
1088 return 0;
1089 }
1090 #endif
1091
1092 #ifdef VOODOOFB_ENABLE_INTR
1093 static int
1094 voodoofb_intr(void *arg)
1095 {
1096 struct voodoofb_softc *sc = arg;
1097
1098 voodoo3_write32(sc, V3_STATUS, 0); /* clear interrupts */
1099 return 1;
1100 }
1101 #endif
1102
1103 /* video mode stuff */
1104
1105 #define REFFREQ 14318 /* .18 */
1106
1107 #define ABS(a) ((a < 0) ? -a : a)
1108
1109 static int
1110 voodoofb_calc_pll(int freq, int *f_out, int isBanshee)
1111 {
1112 int m, n, k, best_m, best_n, best_k, f_cur, best_error;
1113 int minm, maxm;
1114
1115 best_error = freq;
1116 best_n = best_m = best_k = 0;
1117
1118 if (isBanshee) {
1119 minm = 24;
1120 maxm = 24;
1121 } else {
1122 minm = 1;
1123 maxm = 57;
1124 /* This used to be 64, alas it seems the last 8 (funny that ?)
1125 * values cause jittering at lower resolutions. I've not done
1126 * any calculations to what the adjustment affects clock ranges,
1127 * but I can still run at 1600x1200@75Hz */
1128 }
1129 for (n = 1; n < 256; n++) {
1130 f_cur = REFFREQ * (n + 2);
1131 if (f_cur < freq) {
1132 f_cur = f_cur / 3;
1133 if (freq - f_cur < best_error) {
1134 best_error = freq - f_cur;
1135 best_n = n;
1136 best_m = 1;
1137 best_k = 0;
1138 continue;
1139 }
1140 }
1141 for (m = minm; m < maxm; m++) {
1142 for (k = 0; k < 4; k++) {
1143 f_cur = REFFREQ * (n + 2) / (m + 2) / (1 << k);
1144 if (ABS(f_cur - freq) < best_error) {
1145 best_error = ABS(f_cur - freq);
1146 best_n = n;
1147 best_m = m;
1148 best_k = k;
1149 }
1150 }
1151 }
1152 }
1153 n = best_n;
1154 m = best_m;
1155 k = best_k;
1156 *f_out = REFFREQ * (n + 2) / (m + 2) / (1 << k);
1157 return ( n << 8) | (m << 2) | k;
1158 }
1159
1160 static void
1161 voodoofb_setup_monitor(struct voodoofb_softc *sc, const struct videomode *vm)
1162 {
1163 struct voodoo_regs mod;
1164 struct voodoo_regs *mode;
1165 uint32_t horizontal_display_end, horizontal_sync_start,
1166 horizontal_sync_end, horizontal_total,
1167 horizontal_blanking_start, horizontal_blanking_end;
1168
1169 uint32_t vertical_display_enable_end, vertical_sync_start,
1170 vertical_sync_end, vertical_total, vertical_blanking_start,
1171 vertical_blanking_end;
1172
1173 uint32_t wd; // CRTC offset
1174
1175 int i;
1176
1177 uint8_t misc;
1178
1179 memset(&mod, 0, sizeof(mode));
1180
1181 mode = &mod;
1182
1183 wd = (vm->hdisplay >> 3) - 1;
1184 horizontal_display_end = (vm->hdisplay >> 3) - 1;
1185 horizontal_sync_start = (vm->hsync_start >> 3) - 1;
1186 horizontal_sync_end = (vm->hsync_end >> 3) - 1;
1187 horizontal_total = (vm->htotal >> 3) - 1;
1188 horizontal_blanking_start = horizontal_display_end;
1189 horizontal_blanking_end = horizontal_total;
1190
1191 vertical_display_enable_end = vm->vdisplay - 1;
1192 vertical_sync_start = vm->vsync_start; // - 1;
1193 vertical_sync_end = vm->vsync_end; // - 1;
1194 vertical_total = vm->vtotal - 2;
1195 vertical_blanking_start = vertical_display_enable_end;
1196 vertical_blanking_end = vertical_total;
1197
1198 misc = 0x0f |
1199 (vm->hdisplay < 400 ? 0xa0 :
1200 vm->hdisplay < 480 ? 0x60 :
1201 vm->hdisplay < 768 ? 0xe0 : 0x20);
1202
1203 mode->vr_seq[0] = 3;
1204 mode->vr_seq[1] = 1;
1205 mode->vr_seq[2] = 8;
1206 mode->vr_seq[3] = 0;
1207 mode->vr_seq[4] = 6;
1208
1209 /* crtc regs start */
1210 mode->vr_crtc[0] = horizontal_total - 4;
1211 mode->vr_crtc[1] = horizontal_display_end;
1212 mode->vr_crtc[2] = horizontal_blanking_start;
1213 mode->vr_crtc[3] = 0x80 | (horizontal_blanking_end & 0x1f);
1214 mode->vr_crtc[4] = horizontal_sync_start;
1215
1216 mode->vr_crtc[5] = ((horizontal_blanking_end & 0x20) << 2) |
1217 (horizontal_sync_end & 0x1f);
1218 mode->vr_crtc[6] = vertical_total;
1219 mode->vr_crtc[7] = ((vertical_sync_start & 0x200) >> 2) |
1220 ((vertical_display_enable_end & 0x200) >> 3) |
1221 ((vertical_total & 0x200) >> 4) |
1222 0x10 |
1223 ((vertical_blanking_start & 0x100) >> 5) |
1224 ((vertical_sync_start & 0x100) >> 6) |
1225 ((vertical_display_enable_end & 0x100) >> 7) |
1226 ((vertical_total & 0x100) >> 8);
1227
1228 mode->vr_crtc[8] = 0;
1229 mode->vr_crtc[9] = 0x40 |
1230 ((vertical_blanking_start & 0x200) >> 4);
1231
1232 mode->vr_crtc[10] = 0;
1233 mode->vr_crtc[11] = 0;
1234 mode->vr_crtc[12] = 0;
1235 mode->vr_crtc[13] = 0;
1236 mode->vr_crtc[14] = 0;
1237 mode->vr_crtc[15] = 0;
1238
1239 mode->vr_crtc[16] = vertical_sync_start;
1240 mode->vr_crtc[17] = (vertical_sync_end & 0x0f) | 0x20;
1241 mode->vr_crtc[18] = vertical_display_enable_end;
1242 mode->vr_crtc[19] = wd; // CRTC offset
1243 mode->vr_crtc[20] = 0;
1244 mode->vr_crtc[21] = vertical_blanking_start;
1245 mode->vr_crtc[22] = vertical_blanking_end + 1;
1246 mode->vr_crtc[23] = 128;
1247 mode->vr_crtc[24] = 255;
1248
1249 /* attr regs start */
1250 mode->vr_attr[0] = 0;
1251 mode->vr_attr[1] = 0;
1252 mode->vr_attr[2] = 0;
1253 mode->vr_attr[3] = 0;
1254 mode->vr_attr[4] = 0;
1255 mode->vr_attr[5] = 0;
1256 mode->vr_attr[6] = 0;
1257 mode->vr_attr[7] = 0;
1258 mode->vr_attr[8] = 0;
1259 mode->vr_attr[9] = 0;
1260 mode->vr_attr[10] = 0;
1261 mode->vr_attr[11] = 0;
1262 mode->vr_attr[12] = 0;
1263 mode->vr_attr[13] = 0;
1264 mode->vr_attr[14] = 0;
1265 mode->vr_attr[15] = 0;
1266 mode->vr_attr[16] = 1;
1267 mode->vr_attr[17] = 0;
1268 mode->vr_attr[18] = 15;
1269 mode->vr_attr[19] = 0;
1270 /* attr regs end */
1271
1272 /* graph regs start */
1273 mode->vr_graph[0] = 159;
1274 mode->vr_graph[1] = 127;
1275 mode->vr_graph[2] = 127;
1276 mode->vr_graph[3] = 131;
1277 mode->vr_graph[4] = 130;
1278 mode->vr_graph[5] = 142;
1279 mode->vr_graph[6] = 30;
1280 mode->vr_graph[7] = 245;
1281 mode->vr_graph[8] = 0;
1282
1283 vga_outb(sc, MISC_W, misc | 0x01);
1284
1285 for(i = 0; i < 5; i++)
1286 voodoo3_write_seq(sc, i, mode->vr_seq[i]);
1287 for (i = 0; i < 0x19; i ++)
1288 voodoo3_write_crtc(sc, i, mode->vr_crtc[i]);
1289 for (i = 0; i < 0x14; i ++)
1290 voodoo3_write_attr(sc, i, mode->vr_attr[i]);
1291 for (i = 0; i < 0x09; i ++)
1292 voodoo3_write_gra(sc, i, mode->vr_graph[i]);
1293 }
1294
1295 static void
1296 voodoofb_set_videomode(struct voodoofb_softc *sc,
1297 const struct videomode *vm)
1298 {
1299 uint32_t miscinit0 = 0;
1300 int vidpll, fout;
1301 uint32_t vp, vidproc = VIDPROCDEFAULT;
1302 uint32_t bpp = 1; /* for now */
1303 uint32_t bytes_per_row = vm->hdisplay * bpp;
1304
1305 sc->bits_per_pixel = bpp << 3;
1306 sc->width = vm->hdisplay;
1307 sc->height = vm->vdisplay;
1308 sc->linebytes = bytes_per_row;
1309
1310 voodoofb_setup_monitor(sc, vm);
1311 vp = voodoo3_read32(sc, VIDPROCCFG);
1312
1313 vidproc &= ~(0x1c0000); /* clear bits 18 to 20, bpp in vidproccfg */
1314 /* enable bits 18 to 20 to the required bpp */
1315 vidproc |= ((bpp - 1) << VIDCFG_PIXFMT_SHIFT);
1316
1317 vidpll = voodoofb_calc_pll(vm->dot_clock, &fout, 0);
1318
1319 #ifdef VOODOOFB_DEBUG
1320 printf("old vidproc: %08x\n", vp);
1321 printf("pll: %08x %d\n", vidpll, fout);
1322 #endif
1323 /* bit 10 of vidproccfg, is enabled or disabled as needed */
1324 switch (bpp) {
1325 case 1:
1326 /*
1327 * bit 10 off for palettized modes only, off means
1328 * palette is used
1329 */
1330 vidproc &= ~(1 << 10);
1331 break;
1332 #if 0
1333 case 2:
1334 #if __POWERPC__
1335 miscinit0 = 0xc0000000;
1336 #endif
1337 /* bypass palette for 16bit modes */
1338 vidproc |= (1 << 10);
1339 break;
1340 case 4:
1341 #if __POWERPC__
1342 miscinit0 = 0x40000000;
1343 #endif
1344 vidproc |= (1 << 10); /* Same for 32bit modes */
1345 break;
1346 #endif
1347 default:
1348 printf("We support only 8 bit for now\n");
1349 return;
1350 }
1351
1352 voodoofb_wait_idle(sc);
1353
1354 voodoo3_write32(sc, MISCINIT1, voodoo3_read32(sc, MISCINIT1) | 0x01);
1355
1356 voodoo3_make_room(sc, 4);
1357 voodoo3_write32(sc, VGAINIT0, 4928);
1358 voodoo3_write32(sc, DACMODE, 0);
1359 voodoo3_write32(sc, VIDDESKSTRIDE, bytes_per_row);
1360 voodoo3_write32(sc, PLLCTRL0, vidpll);
1361
1362 voodoo3_make_room(sc, 5);
1363 voodoo3_write32(sc, VIDSCREENSIZE, sc->width | (sc->height << 12));
1364 voodoo3_write32(sc, VIDDESKSTART, 1024);
1365
1366 vidproc &= ~VIDCFG_HWCURSOR_ENABLE;
1367 voodoo3_write32(sc, VIDPROCCFG, vidproc);
1368
1369 voodoo3_write32(sc, VGAINIT1, 0);
1370 voodoo3_write32(sc, MISCINIT0, miscinit0);
1371 #ifdef VOODOOFB_DEBUG
1372 printf("vidproc: %08x\n", vidproc);
1373 #endif
1374 voodoo3_make_room(sc, 8);
1375 voodoo3_write32(sc, SRCBASE, 0);
1376 voodoo3_write32(sc, DSTBASE, 0);
1377 voodoo3_write32(sc, COMMANDEXTRA_2D, 0);
1378 voodoo3_write32(sc, CLIP0MIN, 0);
1379 voodoo3_write32(sc, CLIP0MAX, 0x0fff0fff);
1380 voodoo3_write32(sc, CLIP1MIN, 0);
1381 voodoo3_write32(sc, CLIP1MAX, 0x0fff0fff);
1382 voodoo3_write32(sc, SRCXY, 0);
1383 voodoofb_wait_idle(sc);
1384 printf("%s: switched to %dx%d, %d bit\n", device_xname(sc->sc_dev),
1385 sc->width, sc->height, sc->bits_per_pixel);
1386 }
1387
1388 static void
1389 voodoofb_init(struct voodoofb_softc *sc)
1390 {
1391 /* XXX */
1392 uint32_t vgainit0 = 0;
1393 uint32_t vidcfg = 0;
1394
1395 #ifdef VOODOOFB_DEBUG
1396 printf("initializing engine...");
1397 #endif
1398 vgainit0 = voodoo3_read32(sc, VGAINIT0);
1399 #ifdef VOODOOFB_DEBUG
1400 printf("vga: %08x", vgainit0);
1401 #endif
1402 vgainit0 |=
1403 VGAINIT0_8BIT_DAC |
1404 VGAINIT0_EXT_ENABLE |
1405 VGAINIT0_WAKEUP_3C3 |
1406 VGAINIT0_ALT_READBACK |
1407 VGAINIT0_EXTSHIFTOUT;
1408
1409 vidcfg = voodoo3_read32(sc, VIDPROCCFG);
1410 #ifdef VOODOOFB_DEBUG
1411 printf(" vidcfg: %08x\n", vidcfg);
1412 #endif
1413 vidcfg |=
1414 VIDCFG_VIDPROC_ENABLE |
1415 VIDCFG_DESK_ENABLE;
1416 vidcfg &= ~VIDCFG_HWCURSOR_ENABLE;
1417
1418 voodoo3_make_room(sc, 2);
1419
1420 voodoo3_write32(sc, VGAINIT0, vgainit0);
1421 voodoo3_write32(sc, VIDPROCCFG, vidcfg);
1422
1423 voodoo3_make_room(sc, 8);
1424 voodoo3_write32(sc, SRCBASE, 0);
1425 voodoo3_write32(sc, DSTBASE, 0);
1426 voodoo3_write32(sc, COMMANDEXTRA_2D, 0);
1427 voodoo3_write32(sc, CLIP0MIN, 0);
1428 voodoo3_write32(sc, CLIP0MAX, 0x1fff1fff);
1429 voodoo3_write32(sc, CLIP1MIN, 0);
1430 voodoo3_write32(sc, CLIP1MAX, 0x1fff1fff);
1431 voodoo3_write32(sc, SRCXY, 0);
1432
1433 voodoofb_wait_idle(sc);
1434 }
NetBSD on the FriendlyARM MINI2440