1 /* $NetBSD: tga.c,v 1.93 2024/02/09 22:08:36 andvar Exp $ */
2
3 /*
4 * Copyright (c) 1995, 1996 Carnegie-Mellon University.
5 * All rights reserved.
6 *
7 * Author: Chris G. Demetriou
8 *
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
22 * School of Computer Science
23 * Carnegie Mellon University
24 * Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 */
29
30 #include <sys/cdefs.h>
31 __KERNEL_RCSID(0, "$NetBSD: tga.c,v 1.93 2024/02/09 22:08:36 andvar Exp $");
32
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/device.h>
37 #include <sys/conf.h>
38 #include <sys/malloc.h>
39 #include <sys/buf.h>
40 #include <sys/ioctl.h>
41
42 #include <sys/bus.h>
43 #include <sys/intr.h>
44
45 #include <dev/pci/pcireg.h>
46 #include <dev/pci/pcivar.h>
47 #include <dev/pci/pcidevs.h>
48 #include <dev/pci/pciio.h>
49 #include <dev/pci/tgareg.h>
50 #include <dev/pci/tgavar.h>
51 #include <dev/ic/bt485reg.h>
52 #include <dev/ic/bt485var.h>
53 #include <dev/ic/bt463reg.h>
54 #include <dev/ic/bt463var.h>
55 #include <dev/ic/ibm561var.h>
56
57 #include <dev/wscons/wsconsio.h>
58 #include <dev/wscons/wscons_raster.h>
59 #include <dev/rasops/rasops.h>
60 #include <dev/wsfont/wsfont.h>
61 #include <dev/pci/wsdisplay_pci.h>
62
63 static int tgamatch(device_t, cfdata_t, void *);
64 static void tgaattach(device_t, device_t, void *);
65
66 CFATTACH_DECL_NEW(tga, sizeof(struct tga_softc),
67 tgamatch, tgaattach, NULL, NULL);
68
69 static void tga_init(bus_space_tag_t memt, pci_chipset_tag_t pc,
70 pcitag_t tag, struct tga_devconfig *dc);
71
72 static int tga_matchcommon(bus_space_tag_t, pci_chipset_tag_t, pcitag_t);
73 static void tga_mapaddrs(bus_space_tag_t memt, pci_chipset_tag_t pc,
74 pcitag_t, bus_size_t *pcisize, struct tga_devconfig *dc);
75 static unsigned int tga_getdotclock(struct tga_devconfig *dc);
76
77 static int tga_ioctl(void *, void *, u_long, void *, int, struct lwp *);
78 static paddr_t tga_mmap(void *, void *, off_t, int);
79 static void tga_copyrows(void *, int, int, int);
80 static void tga_copycols(void *, int, int, int, int);
81 static int tga_alloc_screen(void *, const struct wsscreen_descr *,
82 void **, int *, int *, long *);
83 static void tga_free_screen(void *, void *);
84 static int tga_show_screen(void *, void *, int,
85 void (*) (void *, int, int), void *);
86 static int tga_rop(struct rasops_info *, int, int, int, int, int,
87 struct rasops_info *, int, int);
88 static int tga_rop_vtov(struct rasops_info *, int, int, int, int,
89 int, struct rasops_info *, int, int);
90 static void tga_putchar(void *c, int row, int col, u_int uc, long attr);
91 static void tga_eraserows(void *, int, int, long);
92 static void tga_erasecols(void *, int, int, int, long);
93 static void tga2_init(struct tga_devconfig *);
94
95 static void tga_config_interrupts(device_t);
96
97 /* RAMDAC interface functions */
98 static int tga_sched_update(void *, void (*)(void *));
99 static void tga_ramdac_wr(void *, u_int, uint8_t);
100 static uint8_t tga_ramdac_rd(void *, u_int);
101 static void tga_bt463_wr(void *, u_int, uint8_t);
102 static uint8_t tga_bt463_rd(void *, u_int);
103 static void tga2_ramdac_wr(void *, u_int, uint8_t);
104 static uint8_t tga2_ramdac_rd(void *, u_int);
105
106 /* Interrupt handler */
107 static int tga_intr(void *);
108
109 struct tga_devconfig tga_console_dc;
110
111 /* The NULL entries will get filled in by rasops_init().
112 * XXX and the non-NULL ones will be overwritten; reset after calling it.
113 */
114 struct wsdisplay_emulops tga_emulops = {
115 .cursor = NULL,
116 .mapchar = NULL,
117 .putchar = tga_putchar,
118 .copycols = tga_copycols,
119 .erasecols = tga_erasecols,
120 .copyrows = tga_copyrows,
121 .eraserows = tga_eraserows,
122 .allocattr = NULL,
123 NULL,
124 };
125
126 struct wsscreen_descr tga_stdscreen = {
127 .name = "std",
128 .ncols = 0,
129 .nrows = 0, /* will be filled in -- XXX shouldn't, it's global */
130 .textops = &tga_emulops,
131 .fontwidth = 0,
132 .fontheight = 0,
133 .capabilities = WSSCREEN_REVERSE,
134 .modecookie = NULL,
135 };
136
137 const struct wsscreen_descr *_tga_scrlist[] = {
138 &tga_stdscreen,
139 /* XXX other formats, graphics screen? */
140 };
141
142 struct wsscreen_list tga_screenlist = {
143 sizeof(_tga_scrlist) / sizeof(struct wsscreen_descr *), _tga_scrlist
144 };
145
146 struct wsdisplay_accessops tga_accessops = {
147 .ioctl = tga_ioctl,
148 .mmap = tga_mmap,
149 .alloc_screen = tga_alloc_screen,
150 .free_screen = tga_free_screen,
151 .show_screen = tga_show_screen,
152 .load_font = NULL,
153 .pollc = NULL,
154 .scroll = NULL,
155 };
156
157 static void tga_blank(struct tga_devconfig *);
158 static void tga_unblank(struct tga_devconfig *);
159
160 int
tga_cnmatch(bus_space_tag_t iot,bus_space_tag_t memt,pci_chipset_tag_t pc,pcitag_t tag)161 tga_cnmatch(bus_space_tag_t iot, bus_space_tag_t memt,
162 pci_chipset_tag_t pc, pcitag_t tag)
163 {
164
165 return tga_matchcommon(memt, pc, tag);
166 }
167
168 static int
tgamatch(device_t parent,cfdata_t match,void * aux)169 tgamatch(device_t parent, cfdata_t match, void *aux)
170 {
171 struct pci_attach_args *pa = aux;
172
173 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_DEC)
174 return (0);
175
176 switch (PCI_PRODUCT(pa->pa_id)) {
177 case PCI_PRODUCT_DEC_21030:
178 case PCI_PRODUCT_DEC_PBXGB:
179 break;
180 default:
181 return 0;
182 }
183
184 #if defined(__alpha__) || defined(arc)
185 /* short-circuit the following test, as we
186 * already have the memory mapped and hence
187 * cannot perform it---and we are the console
188 * anyway.
189 */
190 if (pa->pa_tag == tga_console_dc.dc_pcitag)
191 return 10;
192 #endif
193 return tga_matchcommon(pa->pa_memt, pa->pa_pc, pa->pa_tag);
194 }
195
196 static int
tga_matchcommon(bus_space_tag_t memt,pci_chipset_tag_t pc,pcitag_t tag)197 tga_matchcommon(bus_space_tag_t memt, pci_chipset_tag_t pc, pcitag_t tag)
198 {
199 struct tga_devconfig tmp_dc;
200 struct tga_devconfig *dc = &tmp_dc;
201 bus_size_t pcisize;
202
203 tga_mapaddrs(memt, pc, tag, &pcisize, dc);
204 dc->dc_tga_type = tga_identify(dc);
205
206 dc->dc_tgaconf = tga_getconf(dc->dc_tga_type);
207 bus_space_unmap(memt, dc->dc_memh, pcisize);
208 if (dc->dc_tgaconf)
209 return 10;
210 return 0;
211 }
212
213 static void
tga_mapaddrs(bus_space_tag_t memt,pci_chipset_tag_t pc,pcitag_t tag,bus_size_t * pcisize,struct tga_devconfig * dc)214 tga_mapaddrs(bus_space_tag_t memt, pci_chipset_tag_t pc, pcitag_t tag,
215 bus_size_t *pcisize, struct tga_devconfig *dc)
216 {
217 int flags;
218
219 dc->dc_memt = memt;
220 dc->dc_tgaconf = NULL;
221
222 /* XXX magic number */
223 if (pci_mapreg_info(pc, tag, 0x10,
224 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT,
225 &dc->dc_pcipaddr, pcisize, &flags))
226 panic("tga_mapaddrs: pci_mapreg_info() failed");
227 if ((flags & BUS_SPACE_MAP_PREFETCHABLE) == 0) /* XXX */
228 panic("tga memory not prefetchable");
229
230 if (bus_space_map(memt, dc->dc_pcipaddr, *pcisize,
231 BUS_SPACE_MAP_PREFETCHABLE | BUS_SPACE_MAP_LINEAR, &dc->dc_memh))
232 panic("tga_mapaddrs: could not map TGA address space");
233 dc->dc_vaddr = (vaddr_t)bus_space_vaddr(memt, dc->dc_memh);
234
235 bus_space_subregion(dc->dc_memt, dc->dc_memh,
236 TGA_MEM_CREGS, TGA_CREGS_SIZE, &dc->dc_regs);
237 }
238
239 static void
tga_init(bus_space_tag_t memt,pci_chipset_tag_t pc,pcitag_t tag,struct tga_devconfig * dc)240 tga_init(bus_space_tag_t memt, pci_chipset_tag_t pc, pcitag_t tag,
241 struct tga_devconfig *dc)
242 {
243 const struct tga_conf *tgac;
244 struct rasops_info *rip;
245 int cookie;
246 bus_size_t pcisize;
247 int i;
248
249 dc->dc_pc = pc;
250 dc->dc_pcitag = tag;
251 tga_mapaddrs(memt, pc, tag, &pcisize, dc);
252 dc->dc_tga_type = tga_identify(dc);
253 tgac = dc->dc_tgaconf = tga_getconf(dc->dc_tga_type);
254 #if 0
255 /* XXX on the Alpha, pcisize = 4 * cspace_size. */
256 if (tgac->tgac_cspace_size != pcisize) /* sanity */
257 panic("tga_init: memory size mismatch?");
258 #endif
259
260 switch (TGARREG(dc, TGA_REG_GREV) & 0xff) {
261 case 0x01:
262 case 0x02:
263 case 0x03:
264 case 0x04:
265 dc->dc_tga2 = 0;
266 break;
267 case 0x20:
268 case 0x21:
269 case 0x22:
270 dc->dc_tga2 = 1;
271 break;
272 default:
273 panic("tga_init: TGA Revision not recognized");
274 }
275
276 if (dc->dc_tga2)
277 tga2_init(dc);
278
279 switch (TGARREG(dc, TGA_REG_VHCR) & 0x1ff) { /* XXX */
280 case 0:
281 dc->dc_wid = 8192;
282 break;
283
284 case 1:
285 dc->dc_wid = 8196;
286 break;
287
288 default:
289 dc->dc_wid = (TGARREG(dc, TGA_REG_VHCR) & 0x1ff) * 4; /* XXX */
290 break;
291 }
292
293 /*
294 * XXX XXX Turning off "odd" shouldn't be necessary,
295 * XXX XXX but I can't make X work with the weird size.
296 */
297 if ((TGARREG(dc, TGA_REG_VHCR) & 0x00000001) != 0 && /* XXX */
298 (TGARREG(dc, TGA_REG_VHCR) & 0x80000000) != 0) { /* XXX */
299 TGAWREG(dc, TGA_REG_VHCR,
300 (TGARREG(dc, TGA_REG_VHCR) & ~0x80000001));
301 dc->dc_wid -= 4;
302 }
303
304 dc->dc_rowbytes = dc->dc_wid * (dc->dc_tgaconf->tgac_phys_depth / 8);
305 dc->dc_ht = (TGARREG(dc, TGA_REG_VVCR) & 0x7ff); /* XXX */
306
307 /* XXX this seems to be what DEC does */
308 TGAWREG(dc, TGA_REG_CCBR, 0);
309 TGAWREG(dc, TGA_REG_VVBR, 1);
310 dc->dc_videobase = dc->dc_vaddr + tgac->tgac_dbuf[0] +
311 1 * tgac->tgac_vvbr_units;
312 dc->dc_blanked = 1;
313 tga_unblank(dc);
314
315 /*
316 * Set all bits in the pixel mask, to enable writes to all pixels.
317 * It seems that the console firmware clears some of them
318 * under some circumstances, which causes cute vertical stripes.
319 */
320 TGAWREG(dc, TGA_REG_GPXR_P, 0xffffffff);
321
322 /* clear the screen */
323 for (i = 0; i < dc->dc_ht * dc->dc_rowbytes; i += sizeof(uint32_t))
324 *(uint32_t *)(dc->dc_videobase + i) = 0;
325
326 /* Initialize rasops descriptor */
327 rip = &dc->dc_rinfo;
328 rip->ri_flg = RI_CENTER;
329 rip->ri_depth = tgac->tgac_phys_depth;
330 rip->ri_bits = (void *)dc->dc_videobase;
331 rip->ri_width = dc->dc_wid;
332 rip->ri_height = dc->dc_ht;
333 rip->ri_stride = dc->dc_rowbytes;
334 rip->ri_hw = dc;
335 if (dc == &tga_console_dc)
336 rip->ri_flg |= RI_NO_AUTO;
337
338 if (tgac->tgac_phys_depth == 32) {
339 rip->ri_rnum = 8;
340 rip->ri_gnum = 8;
341 rip->ri_bnum = 8;
342 rip->ri_rpos = 16;
343 rip->ri_gpos = 8;
344 rip->ri_bpos = 0;
345 }
346
347 wsfont_init();
348 /* prefer 8 pixel wide font */
349 cookie = wsfont_find(NULL, 8, 0, 0, WSDISPLAY_FONTORDER_R2L,
350 WSDISPLAY_FONTORDER_L2R, WSFONT_FIND_BITMAP);
351 if (cookie <= 0)
352 cookie = wsfont_find(NULL, 0, 0, 0, WSDISPLAY_FONTORDER_R2L,
353 WSDISPLAY_FONTORDER_L2R, WSFONT_FIND_BITMAP);
354 if (cookie <= 0) {
355 printf("tga: no appropriate fonts.\n");
356 return;
357 }
358
359 /* the accelerated tga_putchar() needs LSbit left */
360 if (wsfont_lock(cookie, &rip->ri_font)) {
361 printf("tga: couldn't lock font\n");
362 return;
363 }
364 rip->ri_wsfcookie = cookie;
365
366 rasops_init(rip, 34, 80);
367
368 /* add our accelerated functions */
369 /* XXX shouldn't have to do this; rasops should leave non-NULL
370 * XXX entries alone.
371 */
372 rip->ri_ops.copyrows = tga_copyrows;
373 rip->ri_ops.eraserows = tga_eraserows;
374 rip->ri_ops.erasecols = tga_erasecols;
375 rip->ri_ops.copycols = tga_copycols;
376 rip->ri_ops.putchar = tga_putchar;
377
378 tga_stdscreen.nrows = rip->ri_rows;
379 tga_stdscreen.ncols = rip->ri_cols;
380 tga_stdscreen.textops = &rip->ri_ops;
381 tga_stdscreen.capabilities = rip->ri_caps;
382
383
384 dc->dc_intrenabled = 0;
385 }
386
387 static void
tgaattach(device_t parent,device_t self,void * aux)388 tgaattach(device_t parent, device_t self, void *aux)
389 {
390 struct pci_attach_args *pa = aux;
391 struct tga_softc *sc = device_private(self);
392 struct tga_devconfig *dc;
393 struct wsemuldisplaydev_attach_args aa;
394 pci_intr_handle_t intrh;
395 const char *intrstr;
396 uint8_t rev;
397 int console;
398 char intrbuf[PCI_INTRSTR_LEN];
399
400 sc->sc_dev = self;
401
402 #if defined(__alpha__) || defined(arc)
403 console = (pa->pa_tag == tga_console_dc.dc_pcitag);
404 #else
405 console = 0;
406 #endif
407 if (console) {
408 sc->sc_dc = &tga_console_dc;
409 sc->sc_dc->dc_rinfo.ri_flg &= ~RI_NO_AUTO;
410 sc->nscreens = 1;
411 } else {
412 sc->sc_dc = malloc(sizeof(struct tga_devconfig), M_DEVBUF,
413 M_WAITOK|M_ZERO);
414 tga_init(pa->pa_memt, pa->pa_pc, pa->pa_tag, sc->sc_dc);
415 }
416 if (sc->sc_dc->dc_vaddr == 0) {
417 aprint_error(": couldn't map memory space; punt!\n");
418 return;
419 }
420
421 /* XXX say what's going on. */
422 intrstr = NULL;
423 if (pci_intr_map(pa, &intrh)) {
424 aprint_error(": couldn't map interrupt");
425 return;
426 }
427 intrstr = pci_intr_string(pa->pa_pc, intrh, intrbuf, sizeof(intrbuf));
428 sc->sc_intr = pci_intr_establish_xname(pa->pa_pc, intrh, IPL_TTY,
429 tga_intr, sc->sc_dc, device_xname(self));
430 if (sc->sc_intr == NULL) {
431 aprint_error(": couldn't establish interrupt");
432 if (intrstr != NULL)
433 aprint_error("at %s", intrstr);
434 aprint_error("\n");
435 return;
436 }
437
438 rev = PCI_REVISION(pa->pa_class);
439 switch (rev) {
440 case 0x1:
441 case 0x2:
442 case 0x3:
443 aprint_normal(": DC21030 step %c", 'A' + rev - 1);
444 break;
445 case 0x20:
446 aprint_normal(": TGA2 abstract software model");
447 break;
448 case 0x21:
449 case 0x22:
450 aprint_normal(": TGA2 pass %d", rev - 0x20);
451 break;
452
453 default:
454 aprint_normal("unknown stepping (0x%x)", rev);
455 break;
456 }
457 aprint_normal(", ");
458
459 /*
460 * Get RAMDAC function vectors and call the RAMDAC functions
461 * to allocate its private storage and pass that back to us.
462 */
463
464 dc = sc->sc_dc;
465 dc->dc_ramdac_funcs = dc->dc_tgaconf->ramdac_funcs();
466 if (!dc->dc_tga2) {
467 if (dc->dc_tgaconf->ramdac_funcs == bt485_funcs)
468 dc->dc_ramdac_cookie =
469 dc->dc_ramdac_funcs->ramdac_register(dc,
470 tga_sched_update, tga_ramdac_wr, tga_ramdac_rd);
471 else
472 dc->dc_ramdac_cookie =
473 dc->dc_ramdac_funcs->ramdac_register(dc,
474 tga_sched_update, tga_bt463_wr, tga_bt463_rd);
475 } else {
476 dc->dc_ramdac_cookie = dc->dc_ramdac_funcs->ramdac_register(dc,
477 tga_sched_update, tga2_ramdac_wr, tga2_ramdac_rd);
478
479 /* XXX this is a bit of a hack, setting the dotclock here */
480 if (dc->dc_tgaconf->ramdac_funcs != bt485_funcs)
481 (*dc->dc_ramdac_funcs->ramdac_set_dotclock)
482 (dc->dc_ramdac_cookie, tga_getdotclock(dc));
483 }
484
485 /*
486 * Initialize the RAMDAC. Initialization includes disabling
487 * cursor, setting a sane colormap, etc. We presume that we've
488 * filled in the necessary dot clock for PowerStorm 4d20.
489 */
490 (*dc->dc_ramdac_funcs->ramdac_init)(dc->dc_ramdac_cookie);
491 TGAWREG(dc, TGA_REG_SISR, 0x00000001); /* XXX */
492
493 if (dc->dc_tgaconf == NULL) {
494 aprint_error("unknown board configuration\n");
495 return;
496 }
497 aprint_normal("board type %s\n", dc->dc_tgaconf->tgac_name);
498 aprint_normal_dev(self, "%d x %d, %dbpp, %s RAMDAC\n",
499 dc->dc_wid, dc->dc_ht,
500 dc->dc_tgaconf->tgac_phys_depth,
501 dc->dc_ramdac_funcs->ramdac_name);
502
503 if (intrstr != NULL)
504 aprint_normal_dev(self, "interrupting at %s\n",
505 intrstr);
506
507 aa.console = console;
508 aa.scrdata = &tga_screenlist;
509 aa.accessops = &tga_accessops;
510 aa.accesscookie = sc;
511
512 config_found(self, &aa, wsemuldisplaydevprint, CFARGS_NONE);
513
514 config_interrupts(self, tga_config_interrupts);
515 }
516
517 static void
tga_config_interrupts(device_t self)518 tga_config_interrupts(device_t self)
519 {
520 struct tga_softc *sc;
521
522 sc = device_private(self);
523 sc->sc_dc->dc_intrenabled = 1;
524 }
525
526 static int
tga_ioctl(void * v,void * vs,u_long cmd,void * data,int flag,struct lwp * l)527 tga_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l)
528 {
529 struct tga_softc *sc = v;
530 struct tga_devconfig *dc = sc->sc_dc;
531 struct ramdac_funcs *dcrf = dc->dc_ramdac_funcs;
532 struct ramdac_cookie *dcrc = dc->dc_ramdac_cookie;
533
534 switch (cmd) {
535 case WSDISPLAYIO_GTYPE:
536 *(u_int *)data = WSDISPLAY_TYPE_TGA;
537 return 0;
538
539 case WSDISPLAYIO_GINFO:
540 #define wsd_fbip ((struct wsdisplay_fbinfo *)data)
541 wsd_fbip->height = sc->sc_dc->dc_ht;
542 wsd_fbip->width = sc->sc_dc->dc_wid;
543 wsd_fbip->depth = sc->sc_dc->dc_tgaconf->tgac_phys_depth;
544 #if 0
545 wsd_fbip->cmsize = 256; /* XXX ??? */
546 #else
547 wsd_fbip->cmsize = 1024; /* XXX ??? */
548 #endif
549 #undef wsd_fbip
550 return 0;
551
552 case WSDISPLAYIO_GETCMAP:
553 return (*dcrf->ramdac_get_cmap)(dcrc,
554 (struct wsdisplay_cmap *)data);
555
556 case WSDISPLAYIO_PUTCMAP:
557 return (*dcrf->ramdac_set_cmap)(dcrc,
558 (struct wsdisplay_cmap *)data);
559
560 case WSDISPLAYIO_SVIDEO:
561 if (*(u_int *)data == WSDISPLAYIO_VIDEO_OFF)
562 tga_blank(sc->sc_dc);
563 else
564 tga_unblank(sc->sc_dc);
565 return 0;
566
567 case WSDISPLAYIO_GVIDEO:
568 *(u_int *)data = dc->dc_blanked ?
569 WSDISPLAYIO_VIDEO_OFF : WSDISPLAYIO_VIDEO_ON;
570 return 0;
571
572 case WSDISPLAYIO_GCURPOS:
573 return (*dcrf->ramdac_get_curpos)(dcrc,
574 (struct wsdisplay_curpos *)data);
575
576 case WSDISPLAYIO_SCURPOS:
577 return (*dcrf->ramdac_set_curpos)(dcrc,
578 (struct wsdisplay_curpos *)data);
579
580 case WSDISPLAYIO_GCURMAX:
581 return (*dcrf->ramdac_get_curmax)(dcrc,
582 (struct wsdisplay_curpos *)data);
583
584 case WSDISPLAYIO_GCURSOR:
585 return (*dcrf->ramdac_get_cursor)(dcrc,
586 (struct wsdisplay_cursor *)data);
587
588 case WSDISPLAYIO_SCURSOR:
589 return (*dcrf->ramdac_set_cursor)(dcrc,
590 (struct wsdisplay_cursor *)data);
591
592 case WSDISPLAYIO_LINEBYTES:
593 *(u_int *)data = dc->dc_rowbytes;
594 return 0;
595
596 /* PCI config read/write passthrough. */
597 case PCI_IOC_CFGREAD:
598 case PCI_IOC_CFGWRITE:
599 return pci_devioctl(dc->dc_pc, dc->dc_pcitag,
600 cmd, data, flag, l);
601
602 case WSDISPLAYIO_GET_BUSID:
603 return wsdisplayio_busid_pci(sc->sc_dev, dc->dc_pc,
604 dc->dc_pcitag, data);
605 }
606 return EPASSTHROUGH;
607 }
608
609 static int
tga_sched_update(void * v,void (* f)(void *))610 tga_sched_update(void *v, void (*f)(void *))
611 {
612 struct tga_devconfig *dc = v;
613
614 if (dc->dc_intrenabled) {
615 /*
616 * Arrange for f to be called at the next end-of-frame
617 * interrupt.
618 */
619 dc->dc_ramdac_intr = f;
620 TGAWREG(dc, TGA_REG_SISR, 0x00010000);
621 } else {
622 /* Spin until the end-of-frame, then call f */
623 TGAWREG(dc, TGA_REG_SISR, 0x00010001);
624 TGAREGWB(dc, TGA_REG_SISR, 1);
625 while ((TGARREG(dc, TGA_REG_SISR) & 0x00000001) == 0)
626 continue;
627 f(dc->dc_ramdac_cookie);
628 TGAWREG(dc, TGA_REG_SISR, 0x00000001);
629 TGAREGWB(dc, TGA_REG_SISR, 1);
630 }
631
632 return 0;
633 }
634
635 static int
tga_intr(void * v)636 tga_intr(void *v)
637 {
638 struct tga_devconfig *dc = v;
639 struct ramdac_cookie *dcrc= dc->dc_ramdac_cookie;
640
641 uint32_t reg;
642
643 reg = TGARREG(dc, TGA_REG_SISR);
644 if (( reg & 0x00010001) != 0x00010001) {
645 /* Odd. We never set any of the other interrupt enables. */
646 if ((reg & 0x1f) != 0) {
647 /* Clear the mysterious pending interrupts. */
648 TGAWREG(dc, TGA_REG_SISR, (reg & 0x1f));
649 TGAREGWB(dc, TGA_REG_SISR, 1);
650 /*
651 * This was our interrupt, even if we're puzzled
652 * as to why we got it. Don't make the interrupt
653 * handler think it was a stray.
654 */
655 return -1;
656 } else {
657 return 0;
658 }
659 }
660 /* if we have something to do, do it */
661 if (dc->dc_ramdac_intr) {
662 dc->dc_ramdac_intr(dcrc);
663 dc->dc_ramdac_intr = NULL;
664 }
665 TGAWREG(dc, TGA_REG_SISR, 0x00000001);
666 TGAREGWB(dc, TGA_REG_SISR, 1);
667 return 1;
668 }
669
670 static paddr_t
tga_mmap(void * v,void * vs,off_t offset,int prot)671 tga_mmap(void *v, void *vs, off_t offset, int prot)
672 {
673 struct tga_softc *sc = v;
674
675 if (offset >= sc->sc_dc->dc_tgaconf->tgac_cspace_size || offset < 0)
676 return -1;
677
678 return bus_space_mmap(sc->sc_dc->dc_memt, sc->sc_dc->dc_pcipaddr,
679 offset, prot, BUS_SPACE_MAP_LINEAR);
680 }
681
682 static int
tga_alloc_screen(void * v,const struct wsscreen_descr * type,void ** cookiep,int * curxp,int * curyp,long * attrp)683 tga_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep,
684 int *curxp, int *curyp, long *attrp)
685 {
686 struct tga_softc *sc = v;
687 long defattr;
688
689 if (sc->nscreens > 0)
690 return ENOMEM;
691
692 *cookiep = &sc->sc_dc->dc_rinfo; /* one and only for now */
693 *curxp = 0;
694 *curyp = 0;
695 sc->sc_dc->dc_rinfo.ri_ops.allocattr(&sc->sc_dc->dc_rinfo,
696 0, 0, 0, &defattr);
697 *attrp = defattr;
698 sc->nscreens++;
699 return 0;
700 }
701
702 static void
tga_free_screen(void * v,void * cookie)703 tga_free_screen(void *v, void *cookie)
704 {
705 struct tga_softc *sc = v;
706
707 if (sc->sc_dc == &tga_console_dc)
708 panic("tga_free_screen: console");
709
710 sc->nscreens--;
711 }
712
713 static int
tga_show_screen(void * v,void * cookie,int waitok,void (* cb)(void *,int,int),void * cbarg)714 tga_show_screen(void *v, void *cookie, int waitok,
715 void (*cb)(void *, int, int), void *cbarg)
716 {
717
718 return 0;
719 }
720
721 int
tga_cnattach(bus_space_tag_t iot,bus_space_tag_t memt,pci_chipset_tag_t pc,int bus,int device,int function)722 tga_cnattach(bus_space_tag_t iot, bus_space_tag_t memt,
723 pci_chipset_tag_t pc, int bus, int device, int function)
724 {
725 struct tga_devconfig *dcp = &tga_console_dc;
726 long defattr;
727
728 tga_init(memt, pc, pci_make_tag(pc, bus, device, function), dcp);
729
730 /* sanity checks */
731 if (dcp->dc_vaddr == 0)
732 panic("tga_console(%d, %d): couldn't map memory space",
733 device, function);
734 if (dcp->dc_tgaconf == NULL)
735 panic("tga_console(%d, %d): unknown board configuration",
736 device, function);
737
738 /*
739 * Initialize the RAMDAC but DO NOT allocate any private storage.
740 * Initialization includes disabling cursor, setting a sane
741 * colormap, etc. It will be reinitialized in tgaattach().
742 */
743 if (dcp->dc_tga2) {
744 if (dcp->dc_tgaconf->ramdac_funcs == bt485_funcs)
745 bt485_cninit(dcp, tga_sched_update, tga2_ramdac_wr,
746 tga2_ramdac_rd);
747 else
748 ibm561_cninit(dcp, tga_sched_update, tga2_ramdac_wr,
749 tga2_ramdac_rd, tga_getdotclock(dcp));
750 } else {
751 if (dcp->dc_tgaconf->ramdac_funcs == bt485_funcs)
752 bt485_cninit(dcp, tga_sched_update, tga_ramdac_wr,
753 tga_ramdac_rd);
754 else {
755 bt463_cninit(dcp, tga_sched_update, tga_bt463_wr,
756 tga_bt463_rd);
757 }
758 }
759 dcp->dc_rinfo.ri_ops.allocattr(&dcp->dc_rinfo, 0, 0, 0, &defattr);
760 wsdisplay_cnattach(&tga_stdscreen, &dcp->dc_rinfo, 0, 0, defattr);
761
762 return 0;
763 }
764
765 /*
766 * Functions to blank and unblank the display.
767 */
768 static void
tga_blank(struct tga_devconfig * dc)769 tga_blank(struct tga_devconfig *dc)
770 {
771
772 if (!dc->dc_blanked) {
773 dc->dc_blanked = 1;
774 /* XXX */
775 TGAWREG(dc, TGA_REG_VVVR,
776 TGARREG(dc, TGA_REG_VVVR) | VVR_BLANK);
777 }
778 }
779
780 static void
tga_unblank(struct tga_devconfig * dc)781 tga_unblank(struct tga_devconfig *dc)
782 {
783
784 if (dc->dc_blanked) {
785 dc->dc_blanked = 0;
786 /* XXX */
787 TGAWREG(dc, TGA_REG_VVVR,
788 TGARREG(dc, TGA_REG_VVVR) & ~VVR_BLANK);
789 }
790 }
791
792 /*
793 * Functions to manipulate the built-in cursor handing hardware.
794 */
795 int
tga_builtin_set_cursor(struct tga_devconfig * dc,struct wsdisplay_cursor * cursorp)796 tga_builtin_set_cursor(struct tga_devconfig *dc,
797 struct wsdisplay_cursor *cursorp)
798 {
799 struct ramdac_funcs *dcrf = dc->dc_ramdac_funcs;
800 struct ramdac_cookie *dcrc = dc->dc_ramdac_cookie;
801 uint8_t image[512];
802 u_int count, v;
803 int error;
804
805 v = cursorp->which;
806 if (v & WSDISPLAY_CURSOR_DOCMAP) {
807 error = dcrf->ramdac_check_curcmap(dcrc, cursorp);
808 if (error)
809 return error;
810 }
811 if (v & WSDISPLAY_CURSOR_DOSHAPE) {
812 if ((u_int)cursorp->size.x != 64 ||
813 (u_int)cursorp->size.y > 64)
814 return EINVAL;
815 /* The cursor is 2 bits deep, and there is no mask */
816 count = (cursorp->size.y * 64 * 2) / NBBY;
817 error = copyin(cursorp->image, image, count);
818 if (error)
819 return error;
820 }
821 if (v & WSDISPLAY_CURSOR_DOHOT) /* not supported */
822 return EINVAL;
823
824 /* parameters are OK; do it */
825 if (v & WSDISPLAY_CURSOR_DOCUR) {
826 if (cursorp->enable)
827 /* XXX */
828 TGAWREG(dc, TGA_REG_VVVR,
829 TGARREG(dc, TGA_REG_VVVR) | 0x04);
830 else
831 /* XXX */
832 TGAWREG(dc, TGA_REG_VVVR,
833 TGARREG(dc, TGA_REG_VVVR) & ~0x04);
834 }
835 if (v & WSDISPLAY_CURSOR_DOPOS) {
836 TGAWREG(dc, TGA_REG_CXYR, ((cursorp->pos.y & 0xfff) << 12) |
837 (cursorp->pos.x & 0xfff));
838 }
839 if (v & WSDISPLAY_CURSOR_DOCMAP) {
840 dcrf->ramdac_set_curcmap(dcrc, cursorp);
841 }
842 if (v & WSDISPLAY_CURSOR_DOSHAPE) {
843 count = ((64 * 2) / NBBY) * cursorp->size.y;
844 TGAWREG(dc, TGA_REG_CCBR,
845 (TGARREG(dc, TGA_REG_CCBR) & ~0xfc00) |
846 (cursorp->size.y << 10));
847 memcpy((void *)(dc->dc_vaddr +
848 (TGARREG(dc, TGA_REG_CCBR) & 0x3ff)),
849 image, count);
850 }
851 return 0;
852 }
853
854 int
tga_builtin_get_cursor(struct tga_devconfig * dc,struct wsdisplay_cursor * cursorp)855 tga_builtin_get_cursor(struct tga_devconfig *dc,
856 struct wsdisplay_cursor *cursorp)
857 {
858 struct ramdac_funcs *dcrf = dc->dc_ramdac_funcs;
859 struct ramdac_cookie *dcrc = dc->dc_ramdac_cookie;
860 int count, error;
861
862 cursorp->which = WSDISPLAY_CURSOR_DOALL &
863 ~(WSDISPLAY_CURSOR_DOHOT | WSDISPLAY_CURSOR_DOCMAP);
864 cursorp->enable = (TGARREG(dc, TGA_REG_VVVR) & 0x04) != 0;
865 cursorp->pos.x = TGARREG(dc, TGA_REG_CXYR) & 0xfff;
866 cursorp->pos.y = (TGARREG(dc, TGA_REG_CXYR) >> 12) & 0xfff;
867 cursorp->size.x = 64;
868 cursorp->size.y = (TGARREG(dc, TGA_REG_CCBR) >> 10) & 0x3f;
869
870 if (cursorp->image != NULL) {
871 count = (cursorp->size.y * 64 * 2) / NBBY;
872 error = copyout((char *)(dc->dc_vaddr +
873 (TGARREG(dc, TGA_REG_CCBR) & 0x3ff)),
874 cursorp->image, count);
875 if (error)
876 return error;
877 /* No mask */
878 }
879 error = dcrf->ramdac_get_curcmap(dcrc, cursorp);
880 return error;
881 }
882
883 int
tga_builtin_set_curpos(struct tga_devconfig * dc,struct wsdisplay_curpos * curposp)884 tga_builtin_set_curpos(struct tga_devconfig *dc,
885 struct wsdisplay_curpos *curposp)
886 {
887
888 TGAWREG(dc, TGA_REG_CXYR,
889 ((curposp->y & 0xfff) << 12) | (curposp->x & 0xfff));
890 return 0;
891 }
892
893 int
tga_builtin_get_curpos(struct tga_devconfig * dc,struct wsdisplay_curpos * curposp)894 tga_builtin_get_curpos(struct tga_devconfig *dc,
895 struct wsdisplay_curpos *curposp)
896 {
897
898 curposp->x = TGARREG(dc, TGA_REG_CXYR) & 0xfff;
899 curposp->y = (TGARREG(dc, TGA_REG_CXYR) >> 12) & 0xfff;
900 return 0;
901 }
902
903 int
tga_builtin_get_curmax(struct tga_devconfig * dc,struct wsdisplay_curpos * curposp)904 tga_builtin_get_curmax(struct tga_devconfig *dc,
905 struct wsdisplay_curpos *curposp)
906 {
907
908 curposp->x = curposp->y = 64;
909 return 0;
910 }
911
912 /*
913 * Copy columns (characters) in a row (line).
914 */
915 static void
tga_copycols(void * id,int row,int srccol,int dstcol,int ncols)916 tga_copycols(void *id, int row, int srccol, int dstcol, int ncols)
917 {
918 struct rasops_info *ri = id;
919 int y, srcx, dstx, nx;
920
921 y = ri->ri_font->fontheight * row;
922 srcx = ri->ri_font->fontwidth * srccol;
923 dstx = ri->ri_font->fontwidth * dstcol;
924 nx = ri->ri_font->fontwidth * ncols;
925
926 tga_rop(ri, dstx, y,
927 nx, ri->ri_font->fontheight, RAS_SRC,
928 ri, srcx, y);
929 }
930
931 /*
932 * Copy rows (lines).
933 */
934 static void
tga_copyrows(void * id,int srcrow,int dstrow,int nrows)935 tga_copyrows(void *id, int srcrow, int dstrow, int nrows)
936 {
937 struct rasops_info *ri = id;
938 int srcy, dsty, ny;
939
940 srcy = ri->ri_font->fontheight * srcrow;
941 dsty = ri->ri_font->fontheight * dstrow;
942 ny = ri->ri_font->fontheight * nrows;
943
944 tga_rop(ri, 0, dsty,
945 ri->ri_emuwidth, ny, RAS_SRC,
946 ri, 0, srcy);
947 }
948
949 /* Do we need the src? */
950 static const int needsrc[16] =
951 { 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0 };
952
953 /* A mapping between our API and the TGA card */
954 static const int map_rop[16] = { 0x0, 0x8, 0x4, 0xc, 0x2, 0xa, 0x6,
955 0xe, 0x1, 0x9, 0x5, 0xd, 0x3, 0xb, 0x7, 0xf
956 };
957
958 /*
959 * Generic TGA raster op.
960 * This covers all possible raster ops, and
961 * clips the sizes and all of that.
962 */
963 static int
tga_rop(struct rasops_info * dst,int dx,int dy,int w,int h,int rop,struct rasops_info * src,int sx,int sy)964 tga_rop(struct rasops_info *dst, int dx, int dy, int w, int h, int rop,
965 struct rasops_info *src, int sx, int sy)
966 {
967
968 if (dst == NULL)
969 return -1;
970 if (needsrc[RAS_GETOP(rop)]) {
971 if (src == NULL)
972 return -1; /* We want a src */
973 /* Clip against src */
974 if (sx < 0) {
975 w += sx;
976 sx = 0;
977 }
978 if (sy < 0) {
979 h += sy;
980 sy = 0;
981 }
982 if (sx + w > src->ri_emuwidth)
983 w = src->ri_emuwidth - sx;
984 if (sy + h > src->ri_emuheight)
985 h = src->ri_emuheight - sy;
986 } else {
987 if (src != NULL)
988 return -1; /* We need no src */
989 }
990 /* Clip against dst. We modify src regardless of using it,
991 * since it really doesn't matter.
992 */
993 if (dx < 0) {
994 w += dx;
995 sx -= dx;
996 dx = 0;
997 }
998 if (dy < 0) {
999 h += dy;
1000 sy -= dy;
1001 dy = 0;
1002 }
1003 if (dx + w > dst->ri_emuwidth)
1004 w = dst->ri_emuwidth - dx;
1005 if (dy + h > dst->ri_emuheight)
1006 h = dst->ri_emuheight - dy;
1007 if (w <= 0 || h <= 0)
1008 return 0; /* Vacuously true; */
1009 if (src == NULL) {
1010 /* XXX Punt! */
1011 return -1;
1012 }
1013 return tga_rop_vtov(dst, dx, dy, w, h, rop, src, sx, sy);
1014 }
1015
1016
1017
1018 /*
1019 * Video to Video raster ops.
1020 * This function deals with all raster ops that have a src and dst
1021 * that are on the card.
1022 */
1023 static int
tga_rop_vtov(struct rasops_info * dst,int dx,int dy,int w,int h,int rop,struct rasops_info * src,int sx,int sy)1024 tga_rop_vtov(struct rasops_info *dst, int dx, int dy, int w, int h, int rop,
1025 struct rasops_info *src, int sx, int sy)
1026 {
1027 struct tga_devconfig *dc = dst->ri_hw;
1028 int srcb, dstb, tga_srcb, tga_dstb;
1029 int x, y, wb;
1030 int xstart, xdir;
1031 int ystart, yend, ydir, yinc;
1032 int xleft, lastx, lastleft;
1033 int offset = 1 * dc->dc_tgaconf->tgac_vvbr_units;
1034
1035 /*
1036 * I don't yet want to deal with unaligned guys, really. And we don't
1037 * deal with copies from one card to another.
1038 */
1039 if (dx % 8 != 0 || sx % 8 != 0 || src != dst) {
1040 /* XXX Punt! */
1041 /* XXX should never happen, since it's only being used to
1042 * XXX copy 8-pixel-wide characters.
1043 */
1044 return -1;
1045 }
1046
1047 srcb = sy * src->ri_stride + sx * (src->ri_depth / 8);
1048 dstb = dy * dst->ri_stride + dx * (dst->ri_depth / 8);
1049 tga_srcb = offset + (sy + src->ri_yorigin) * src->ri_stride +
1050 (sx + src->ri_xorigin) * (src->ri_depth / 8);
1051 tga_dstb = offset + (dy + dst->ri_yorigin) * dst->ri_stride +
1052 (dx + dst->ri_xorigin) * (dst->ri_depth / 8);
1053
1054 if (sy >= dy) {
1055 ystart = 0;
1056 yend = (h - 1) * dst->ri_stride;
1057 ydir = 1;
1058 } else {
1059 ystart = (h - 1) * dst->ri_stride;
1060 yend = 0;
1061 ydir = -1;
1062 }
1063 yinc = ydir * dst->ri_stride;
1064
1065 wb = w * (dst->ri_depth / 8);
1066 if (sx >= dx || (sx + w) <= dx) { /* copy forwards */
1067 xstart = 0;
1068 xdir = 1;
1069 } else { /* copy backwards */
1070 xstart = wb;
1071 xdir = -1;
1072 }
1073
1074 TGAWALREG(dc, TGA_REG_GMOR, 3, 0x0007); /* Copy mode */
1075 TGAWALREG(dc, TGA_REG_GOPR, 3, map_rop[rop]); /* Set up the op */
1076 TGAWALREG(dc, TGA_REG_GPSR, 3, 0); /* No shift */
1077
1078 /*
1079 * we have 3 sizes of pixels to move in X direction:
1080 * 4 * 64 (unrolled TGA ops)
1081 * 64 (single TGA op)
1082 * 4 (CPU, using long word)
1083 */
1084
1085 if (xdir == 1) { /* move to the left */
1086
1087 if (wb & ~63)
1088 for (y = ystart; (ydir * y) <= (ydir * yend); y += yinc) {
1089 /* 4 * 64 byte chunks */
1090 for (xleft = wb, x = xstart; xleft >= 4 * 64;
1091 x += 4 * 64, xleft -= 4 * 64) {
1092
1093 /*
1094 * XXX XXX Eight writes to different addresses
1095 * XXX XXX should fill up the write buffers on
1096 * XXX XXX 21064 and 21164 chips, but later
1097 * XXX XXX CPUs might have larger write buffers
1098 * XXX XXX which require further unrolling of
1099 * XXX XXX this loop, or the insertion of
1100 * XXX XXX memory barriers.
1101 */
1102 TGAWALREG(dc, TGA_REG_GCSR, 0,
1103 tga_srcb + y + x + 0 * 64);
1104 TGAWALREG(dc, TGA_REG_GCDR, 0,
1105 tga_dstb + y + x + 0 * 64);
1106 TGAWALREG(dc, TGA_REG_GCSR, 1,
1107 tga_srcb + y + x + 1 * 64);
1108 TGAWALREG(dc, TGA_REG_GCDR, 1,
1109 tga_dstb + y + x + 1 * 64);
1110 TGAWALREG(dc, TGA_REG_GCSR, 2,
1111 tga_srcb + y + x + 2 * 64);
1112 TGAWALREG(dc, TGA_REG_GCDR, 2,
1113 tga_dstb + y + x + 2 * 64);
1114 TGAWALREG(dc, TGA_REG_GCSR, 3,
1115 tga_srcb + y + x + 3 * 64);
1116 TGAWALREG(dc, TGA_REG_GCDR, 3,
1117 tga_dstb + y + x + 3 * 64);
1118 }
1119
1120 /* 64 byte chunks */
1121 for (; xleft >= 64; x += 64, xleft -= 64) {
1122 TGAWALREG(dc, TGA_REG_GCSR, 0,
1123 tga_srcb + y + x + 0 * 64);
1124 TGAWALREG(dc, TGA_REG_GCDR, 0,
1125 tga_dstb + y + x + 0 * 64);
1126 }
1127 }
1128
1129 TGAWALREG(dc, TGA_REG_GOPR, 0, 0x0003); /* op -> dst = src */
1130 TGAWALREG(dc, TGA_REG_GMOR, 0, 0x0000); /* Simple mode */
1131
1132 lastleft = wb & 63;
1133 if (lastleft) {
1134 lastx = xstart + (wb & ~63);
1135 for (y = ystart; (ydir * y) <= (ydir * yend);
1136 y += yinc) {
1137 /* 4 byte granularity */
1138 for (x = lastx, xleft = lastleft; xleft >= 4;
1139 x += 4, xleft -= 4) {
1140 *(uint32_t *)(dst->ri_bits + dstb +
1141 y + x + 0 * 4) =
1142 *(uint32_t *)(dst->ri_bits + srcb +
1143 y + x + 0 * 4);
1144 }
1145 }
1146 }
1147 } else { /* above move to the left, below move to the right */
1148
1149 if (wb & ~63)
1150 for (y = ystart; (ydir * y) <= (ydir * yend); y += yinc) {
1151 /* 4 * 64 byte chunks */
1152 for (xleft = wb, x = xstart; xleft >= 4 * 64;
1153 x -= 4 * 64, xleft -= 4 * 64) {
1154
1155 /*
1156 * XXX XXX Eight writes to different addresses
1157 * XXX XXX should fill up the write buffers on
1158 * XXX XXX 21064 and 21164 chips, but later
1159 * XXX XXX CPUs might have larger write buffers
1160 * XXX XXX which require further unrolling of
1161 * XXX XXX this loop, or the insertion of
1162 * XXX XXX memory barriers.
1163 */
1164 TGAWALREG(dc, TGA_REG_GCSR, 0,
1165 tga_srcb + y + x - 1 * 64);
1166 TGAWALREG(dc, TGA_REG_GCDR, 0,
1167 tga_dstb + y + x - 1 * 64);
1168 TGAWALREG(dc, TGA_REG_GCSR, 1,
1169 tga_srcb + y + x - 2 * 64);
1170 TGAWALREG(dc, TGA_REG_GCDR, 1,
1171 tga_dstb + y + x - 2 * 64);
1172 TGAWALREG(dc, TGA_REG_GCSR, 2,
1173 tga_srcb + y + x - 3 * 64);
1174 TGAWALREG(dc, TGA_REG_GCDR, 2,
1175 tga_dstb + y + x - 3 * 64);
1176 TGAWALREG(dc, TGA_REG_GCSR, 3,
1177 tga_srcb + y + x - 4 * 64);
1178 TGAWALREG(dc, TGA_REG_GCDR, 3,
1179 tga_dstb + y + x - 4 * 64);
1180 }
1181
1182 /* 64 byte chunks */
1183 for (; xleft >= 64; x -= 64, xleft -= 64) {
1184 TGAWALREG(dc, TGA_REG_GCSR, 0,
1185 tga_srcb + y + x - 1 * 64);
1186 TGAWALREG(dc, TGA_REG_GCDR, 0,
1187 tga_dstb + y + x - 1 * 64);
1188 }
1189 }
1190
1191 TGAWALREG(dc, TGA_REG_GOPR, 0, 0x0003); /* op -> dst = src */
1192 TGAWALREG(dc, TGA_REG_GMOR, 0, 0x0000); /* Simple mode */
1193
1194 lastleft = wb & 63;
1195 if (lastleft) {
1196 lastx = xstart - (wb & ~63);
1197 for (y = ystart; (ydir * y) <= (ydir * yend);
1198 y += yinc) {
1199 /* 4 byte granularity */
1200 for (x = lastx, xleft = lastleft; xleft >= 4;
1201 x -= 4, xleft -= 4) {
1202 *(uint32_t *)(dst->ri_bits + dstb +
1203 y + x - 1 * 4) =
1204 *(uint32_t *)(dst->ri_bits + srcb +
1205 y + x - 1 * 4);
1206 }
1207 }
1208 }
1209 }
1210 return 0;
1211 }
1212
1213
1214 static void
tga_putchar(void * c,int row,int col,u_int uc,long attr)1215 tga_putchar(void *c, int row, int col, u_int uc, long attr)
1216 {
1217 struct rasops_info *ri = c;
1218 struct tga_devconfig *dc = ri->ri_hw;
1219 int fs, height, width;
1220 uint8_t *fr;
1221 int32_t *rp;
1222
1223 rp = (int32_t *)(ri->ri_bits +
1224 row * ri->ri_yscale + col * ri->ri_xscale);
1225
1226 height = ri->ri_font->fontheight;
1227 width = ri->ri_font->fontwidth;
1228
1229 uc -= ri->ri_font->firstchar;
1230 fr = (uint8_t *)ri->ri_font->data + uc * ri->ri_fontscale;
1231 fs = ri->ri_font->stride;
1232
1233 /* Set foreground and background color. XXX memoize this somehow?
1234 * The rasops code has already expanded the color entry to 32 bits
1235 * for us, even for 8-bit displays, so we don't have to do anything.
1236 */
1237 TGAWREG(dc, TGA_REG_GFGR, ri->ri_devcmap[(attr >> 24) & 15]);
1238 TGAWREG(dc, TGA_REG_GBGR, ri->ri_devcmap[(attr >> 16) & 15]);
1239
1240 /* Set raster operation to "copy"... */
1241 if (ri->ri_depth == 8)
1242 TGAWREG(dc, TGA_REG_GOPR, 0x3);
1243 else /* ... and in 24-bit mode, set the destination bitmap to 24-bit. */
1244 TGAWREG(dc, TGA_REG_GOPR, 0x3 | (0x3 << 8));
1245
1246 /* Set which pixels we're drawing (of a possible 32). */
1247 TGAWREG(dc, TGA_REG_GPXR_P, (1 << width) - 1);
1248
1249 /* Set drawing mode to opaque stipple. */
1250 TGAWREG(dc, TGA_REG_GMOR, 0x1);
1251
1252 /* Insert write barrier before actually sending data */
1253 /* XXX Abuses the fact that there is only one write barrier on Alphas */
1254 TGAREGWB(dc, TGA_REG_GMOR, 1);
1255
1256 while (height--) {
1257 /* The actual stipple write */
1258 *rp = fr[0] | (fr[1] << 8) | (fr[2] << 16) | (fr[3] << 24);
1259
1260 fr += fs;
1261 rp = (int32_t *)((uint8_t *)rp + ri->ri_stride);
1262 }
1263
1264 /* Do underline */
1265 if ((attr & 1) != 0) {
1266 rp = (int32_t *)((uint8_t *)rp - (ri->ri_stride << 1));
1267 *rp = 0xffffffff;
1268 }
1269
1270 /* Set graphics mode back to normal. */
1271 TGAWREG(dc, TGA_REG_GMOR, 0);
1272 TGAWREG(dc, TGA_REG_GPXR_P, 0xffffffff);
1273 }
1274
1275 static void
tga_eraserows(void * c,int row,int num,long attr)1276 tga_eraserows(void *c, int row, int num, long attr)
1277 {
1278 struct rasops_info *ri = c;
1279 struct tga_devconfig *dc = ri->ri_hw;
1280 int32_t color, lines, pixels;
1281 int32_t *rp;
1282
1283 color = ri->ri_devcmap[(attr >> 16) & 15];
1284 rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale);
1285 lines = num * ri->ri_font->fontheight;
1286 pixels = ri->ri_emuwidth - 1;
1287
1288 /* Set fill color in block-color registers */
1289 TGAWREG(dc, TGA_REG_GBCR0, color);
1290 TGAWREG(dc, TGA_REG_GBCR1, color);
1291 if (ri->ri_depth != 8) {
1292 TGAWREG(dc, TGA_REG_GBCR2, color);
1293 TGAWREG(dc, TGA_REG_GBCR3, color);
1294 TGAWREG(dc, TGA_REG_GBCR4, color);
1295 TGAWREG(dc, TGA_REG_GBCR5, color);
1296 TGAWREG(dc, TGA_REG_GBCR6, color);
1297 TGAWREG(dc, TGA_REG_GBCR7, color);
1298 }
1299
1300 /* Set raster operation to "copy"... */
1301 if (ri->ri_depth == 8)
1302 TGAWREG(dc, TGA_REG_GOPR, 0x3);
1303 else /* ... and in 24-bit mode, set the destination bitmap to 24-bit. */
1304 TGAWREG(dc, TGA_REG_GOPR, 0x3 | (0x3 << 8));
1305
1306 /* Set which pixels we're drawing (of a possible 32). */
1307 TGAWREG(dc, TGA_REG_GDAR, 0xffffffff);
1308
1309 /* Set drawing mode to block fill. */
1310 TGAWREG(dc, TGA_REG_GMOR, 0x2d);
1311
1312 /* Insert write barrier before actually sending data */
1313 /* XXX Abuses the fact that there is only one write barrier on Alphas */
1314 TGAREGWB(dc, TGA_REG_GMOR, 1);
1315
1316 while (lines--) {
1317 *rp = pixels;
1318 rp = (int32_t *)((uint8_t *)rp + ri->ri_stride);
1319 }
1320
1321 /* Set graphics mode back to normal. */
1322 TGAWREG(dc, TGA_REG_GMOR, 0);
1323 }
1324
1325 static void
tga_erasecols(void * c,int row,int col,int num,long attr)1326 tga_erasecols (void *c, int row, int col, int num, long attr)
1327 {
1328 struct rasops_info *ri = c;
1329 struct tga_devconfig *dc = ri->ri_hw;
1330 int32_t color, lines, pixels;
1331 int32_t *rp;
1332
1333 color = ri->ri_devcmap[(attr >> 16) & 15];
1334 rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
1335 lines = ri->ri_font->fontheight;
1336 pixels = (num * ri->ri_font->fontwidth) - 1;
1337
1338 /* Set fill color in block-color registers */
1339 TGAWREG(dc, TGA_REG_GBCR0, color);
1340 TGAWREG(dc, TGA_REG_GBCR1, color);
1341 if (ri->ri_depth != 8) {
1342 TGAWREG(dc, TGA_REG_GBCR2, color);
1343 TGAWREG(dc, TGA_REG_GBCR3, color);
1344 TGAWREG(dc, TGA_REG_GBCR4, color);
1345 TGAWREG(dc, TGA_REG_GBCR5, color);
1346 TGAWREG(dc, TGA_REG_GBCR6, color);
1347 TGAWREG(dc, TGA_REG_GBCR7, color);
1348 }
1349
1350 /* Set raster operation to "copy"... */
1351 if (ri->ri_depth == 8)
1352 TGAWREG(dc, TGA_REG_GOPR, 0x3);
1353 else /* ... and in 24-bit mode, set the destination bitmap to 24-bit. */
1354 TGAWREG(dc, TGA_REG_GOPR, 0x3 | (0x3 << 8));
1355
1356 /* Set which pixels we're drawing (of a possible 32). */
1357 TGAWREG(dc, TGA_REG_GDAR, 0xffffffff);
1358
1359 /* Set drawing mode to block fill. */
1360 TGAWREG(dc, TGA_REG_GMOR, 0x2d);
1361
1362 /* Insert write barrier before actually sending data */
1363 /* XXX Abuses the fact that there is only one write barrier on Alphas */
1364 TGAREGWB(dc, TGA_REG_GMOR, 1);
1365
1366 while (lines--) {
1367 *rp = pixels;
1368 rp = (int32_t *)((uint8_t *)rp + ri->ri_stride);
1369 }
1370
1371 /* Set graphics mode back to normal. */
1372 TGAWREG(dc, TGA_REG_GMOR, 0);
1373 }
1374
1375
1376 static void
tga_ramdac_wr(void * v,u_int btreg,uint8_t val)1377 tga_ramdac_wr(void *v, u_int btreg, uint8_t val)
1378 {
1379 struct tga_devconfig *dc = v;
1380
1381 if (btreg > BT485_REG_MAX)
1382 panic("tga_ramdac_wr: reg %d out of range", btreg);
1383
1384 TGAWREG(dc, TGA_REG_EPDR, (btreg << 9) | (0 << 8 ) | val); /* XXX */
1385 TGAREGWB(dc, TGA_REG_EPDR, 1);
1386 }
1387
1388 static void
tga2_ramdac_wr(void * v,u_int btreg,uint8_t val)1389 tga2_ramdac_wr(void *v, u_int btreg, uint8_t val)
1390 {
1391 struct tga_devconfig *dc = v;
1392 bus_space_handle_t ramdac;
1393
1394 if (btreg > BT485_REG_MAX)
1395 panic("tga_ramdac_wr: reg %d out of range", btreg);
1396
1397 bus_space_subregion(dc->dc_memt, dc->dc_memh,
1398 TGA2_MEM_RAMDAC + (0xe << 12) + (btreg << 8), 4, &ramdac);
1399 bus_space_write_4(dc->dc_memt, ramdac, 0, val & 0xff);
1400 bus_space_barrier(dc->dc_memt, ramdac, 0, 4, BUS_SPACE_BARRIER_WRITE);
1401 }
1402
1403 static uint8_t
tga_bt463_rd(void * v,u_int btreg)1404 tga_bt463_rd(void *v, u_int btreg)
1405 {
1406 struct tga_devconfig *dc = v;
1407 tga_reg_t rdval;
1408
1409 /*
1410 * Strobe CE# (high->low->high) since status and data are latched on
1411 * the falling and rising edges (respectively) of this active-low
1412 * signal.
1413 */
1414
1415 TGAREGWB(dc, TGA_REG_EPSR, 1);
1416 TGAWREG(dc, TGA_REG_EPSR, (btreg << 2) | 2 | 1);
1417 TGAREGWB(dc, TGA_REG_EPSR, 1);
1418 TGAWREG(dc, TGA_REG_EPSR, (btreg << 2) | 2 | 0);
1419
1420 TGAREGRB(dc, TGA_REG_EPSR, 1);
1421
1422 rdval = TGARREG(dc, TGA_REG_EPDR);
1423 TGAREGWB(dc, TGA_REG_EPSR, 1);
1424 TGAWREG(dc, TGA_REG_EPSR, (btreg << 2) | 2 | 1);
1425
1426 return (rdval >> 16) & 0xff;
1427 }
1428
1429 static void
tga_bt463_wr(void * v,u_int btreg,uint8_t val)1430 tga_bt463_wr(void *v, u_int btreg, uint8_t val)
1431 {
1432 struct tga_devconfig *dc = v;
1433
1434 /*
1435 * In spite of the 21030 documentation, to set the MPU bus bits for
1436 * a write, you set them in the upper bits of EPDR, not EPSR.
1437 */
1438
1439 /*
1440 * Strobe CE# (high->low->high) since status and data are latched on
1441 * the falling and rising edges of this active-low signal.
1442 */
1443
1444 TGAREGWB(dc, TGA_REG_EPDR, 1);
1445 TGAWREG(dc, TGA_REG_EPDR, (btreg << 10) | 0x100 | val);
1446 TGAREGWB(dc, TGA_REG_EPDR, 1);
1447 TGAWREG(dc, TGA_REG_EPDR, (btreg << 10) | 0x000 | val);
1448 TGAREGWB(dc, TGA_REG_EPDR, 1);
1449 TGAWREG(dc, TGA_REG_EPDR, (btreg << 10) | 0x100 | val);
1450 }
1451
1452 static uint8_t
tga_ramdac_rd(void * v,u_int btreg)1453 tga_ramdac_rd(void *v, u_int btreg)
1454 {
1455 struct tga_devconfig *dc = v;
1456 tga_reg_t rdval;
1457
1458 if (btreg > BT485_REG_MAX)
1459 panic("tga_ramdac_rd: reg %d out of range", btreg);
1460
1461 TGAWREG(dc, TGA_REG_EPSR, (btreg << 1) | 0x1); /* XXX */
1462 TGAREGWB(dc, TGA_REG_EPSR, 1);
1463
1464 rdval = TGARREG(dc, TGA_REG_EPDR);
1465 return (rdval >> 16) & 0xff; /* XXX */
1466 }
1467
1468 static uint8_t
tga2_ramdac_rd(void * v,u_int btreg)1469 tga2_ramdac_rd(void *v, u_int btreg)
1470 {
1471 struct tga_devconfig *dc = v;
1472 bus_space_handle_t ramdac;
1473 uint8_t retval;
1474
1475 if (btreg > BT485_REG_MAX)
1476 panic("tga_ramdac_rd: reg %d out of range", btreg);
1477
1478 bus_space_subregion(dc->dc_memt, dc->dc_memh,
1479 TGA2_MEM_RAMDAC + (0xe << 12) + (btreg << 8), 4, &ramdac);
1480 retval = bus_space_read_4(dc->dc_memt, ramdac, 0) & 0xff;
1481 bus_space_barrier(dc->dc_memt, ramdac, 0, 4, BUS_SPACE_BARRIER_READ);
1482 return retval;
1483 }
1484
1485 #include <dev/ic/decmonitors.c>
1486 static void tga2_ics9110_wr(struct tga_devconfig *dc, int dotclock);
1487
1488 static struct monitor *tga_getmonitor(struct tga_devconfig *dc);
1489
1490 static void
tga2_init(struct tga_devconfig * dc)1491 tga2_init(struct tga_devconfig *dc)
1492 {
1493 struct monitor *m = tga_getmonitor(dc);
1494
1495 /* Deal with the dot clocks.
1496 */
1497 if (dc->dc_tga_type == TGA_TYPE_POWERSTORM_4D20) {
1498 /*
1499 * Set this up as a reference clock for the
1500 * ibm561's PLL.
1501 */
1502 tga2_ics9110_wr(dc, 14300000);
1503 /*
1504 * XXX Can't set up the dotclock properly, until such time
1505 * as the RAMDAC is configured.
1506 */
1507 } else {
1508 /* otherwise the ics9110 is our clock. */
1509 tga2_ics9110_wr(dc, m->dotclock);
1510 }
1511 #if 0
1512 TGAWREG(dc, TGA_REG_VHCR,
1513 ((m->hbp / 4) << 21) |
1514 ((m->hsync / 4) << 14) |
1515 (((m->hfp - 4) / 4) << 9) |
1516 ((m->cols + 4) / 4));
1517 #else
1518 TGAWREG(dc, TGA_REG_VHCR,
1519 ((m->hbp / 4) << 21) |
1520 ((m->hsync / 4) << 14) |
1521 (((m->hfp) / 4) << 9) |
1522 ((m->cols) / 4));
1523 #endif
1524 TGAWREG(dc, TGA_REG_VVCR,
1525 (m->vbp << 22) |
1526 (m->vsync << 16) |
1527 (m->vfp << 11) |
1528 (m->rows));
1529 TGAWREG(dc, TGA_REG_VVBR, 1);
1530 TGAREGRWB(dc, TGA_REG_VHCR, 3);
1531 TGAWREG(dc, TGA_REG_VVVR, TGARREG(dc, TGA_REG_VVVR) | 1);
1532 TGAREGRWB(dc, TGA_REG_VVVR, 1);
1533 TGAWREG(dc, TGA_REG_GPMR, 0xffffffff);
1534 TGAREGRWB(dc, TGA_REG_GPMR, 1);
1535 }
1536
1537 void
tga2_ics9110_wr(struct tga_devconfig * dc,int dotclock)1538 tga2_ics9110_wr(struct tga_devconfig *dc, int dotclock)
1539 {
1540 bus_space_handle_t clock;
1541 uint32_t valU;
1542 int N, M, R, V, X;
1543 int i;
1544
1545 switch (dotclock) {
1546 case 130808000:
1547 N = 0x40; M = 0x7; V = 0x0; X = 0x1; R = 0x1; break;
1548 case 119840000:
1549 N = 0x2d; M = 0x2b; V = 0x1; X = 0x1; R = 0x1; break;
1550 case 108180000:
1551 N = 0x11; M = 0x9; V = 0x1; X = 0x1; R = 0x2; break;
1552 case 103994000:
1553 N = 0x6d; M = 0xf; V = 0x0; X = 0x1; R = 0x1; break;
1554 case 175000000:
1555 N = 0x5F; M = 0x3E; V = 0x1; X = 0x1; R = 0x1; break;
1556 case 75000000:
1557 N = 0x6e; M = 0x15; V = 0x0; X = 0x1; R = 0x1; break;
1558 case 74000000:
1559 N = 0x2a; M = 0x41; V = 0x1; X = 0x1; R = 0x1; break;
1560 case 69000000:
1561 N = 0x35; M = 0xb; V = 0x0; X = 0x1; R = 0x1; break;
1562 case 65000000:
1563 N = 0x6d; M = 0x0c; V = 0x0; X = 0x1; R = 0x2; break;
1564 case 50000000:
1565 N = 0x37; M = 0x3f; V = 0x1; X = 0x1; R = 0x2; break;
1566 case 40000000:
1567 N = 0x5f; M = 0x11; V = 0x0; X = 0x1; R = 0x2; break;
1568 case 31500000:
1569 N = 0x16; M = 0x05; V = 0x0; X = 0x1; R = 0x2; break;
1570 case 25175000:
1571 N = 0x66; M = 0x1d; V = 0x0; X = 0x1; R = 0x2; break;
1572 case 135000000:
1573 N = 0x42; M = 0x07; V = 0x0; X = 0x1; R = 0x1; break;
1574 case 110000000:
1575 N = 0x60; M = 0x32; V = 0x1; X = 0x1; R = 0x2; break;
1576 case 202500000:
1577 N = 0x60; M = 0x32; V = 0x1; X = 0x1; R = 0x2; break;
1578 case 14300000: /* this one is just a ref clock */
1579 N = 0x03; M = 0x03; V = 0x1; X = 0x1; R = 0x3; break;
1580 default:
1581 panic("unrecognized clock rate %d", dotclock);
1582 }
1583
1584 /* XXX -- hard coded, bad */
1585 valU = N | ( M << 7 ) | (V << 14);
1586 valU |= (X << 15) | (R << 17);
1587 valU |= 0x17 << 19;
1588
1589 bus_space_subregion(dc->dc_memt, dc->dc_memh, TGA2_MEM_EXTDEV +
1590 TGA2_MEM_CLOCK + (0xe << 12), 4, &clock); /* XXX */
1591
1592 for (i = 24; i > 0; i--) {
1593 uint32_t writeval;
1594
1595 writeval = valU & 0x1;
1596 if (i == 1)
1597 writeval |= 0x2;
1598 valU >>= 1;
1599 bus_space_write_4(dc->dc_memt, clock, 0, writeval);
1600 bus_space_barrier(dc->dc_memt, clock, 0, 4,
1601 BUS_SPACE_BARRIER_WRITE);
1602 }
1603 bus_space_subregion(dc->dc_memt, dc->dc_memh, TGA2_MEM_EXTDEV +
1604 TGA2_MEM_CLOCK + (0xe << 12) + (0x1 << 11) + (0x1 << 11), 4,
1605 &clock); /* XXX */
1606 bus_space_write_4(dc->dc_memt, clock, 0, 0x0);
1607 bus_space_barrier(dc->dc_memt, clock, 0, 0, BUS_SPACE_BARRIER_WRITE);
1608 }
1609
1610 static struct monitor *
tga_getmonitor(struct tga_devconfig * dc)1611 tga_getmonitor(struct tga_devconfig *dc)
1612 {
1613
1614 return &decmonitors[(~TGARREG(dc, TGA_REG_GREV) >> 16) & 0x0f];
1615 }
1616
1617 static unsigned int
tga_getdotclock(struct tga_devconfig * dc)1618 tga_getdotclock(struct tga_devconfig *dc)
1619 {
1620
1621 return tga_getmonitor(dc)->dotclock;
1622 }
1623