wcfb.c revision 1.20
1/*	$NetBSD: wcfb.c,v 1.20 2021/08/07 16:19:14 thorpej Exp $ */
2
3/*
4 * Copyright (c) 2007, 2008, 2009 Miodrag Vallat.
5 *               2010 Michael Lorenz
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19
20/* a driver for (some) 3DLabs Wildcat cards, based on OpenBSD's ifb driver */
21
22#include <sys/cdefs.h>
23__KERNEL_RCSID(0, "$NetBSD: wcfb.c,v 1.20 2021/08/07 16:19:14 thorpej Exp $");
24
25#include <sys/param.h>
26#include <sys/systm.h>
27#include <sys/kernel.h>
28#include <sys/device.h>
29#include <sys/proc.h>
30#include <sys/mutex.h>
31#include <sys/ioctl.h>
32#include <sys/kernel.h>
33#include <sys/systm.h>
34#include <sys/kauth.h>
35#include <sys/kmem.h>
36
37#include <dev/pci/pcidevs.h>
38#include <dev/pci/pcireg.h>
39#include <dev/pci/pcivar.h>
40#include <dev/pci/pciio.h>
41#include <dev/pci/wcfbreg.h>
42
43#include <dev/wscons/wsdisplayvar.h>
44#include <dev/wscons/wsconsio.h>
45#include <dev/wsfont/wsfont.h>
46#include <dev/rasops/rasops.h>
47#include <dev/wscons/wsdisplay_vconsvar.h>
48#include <dev/pci/wsdisplay_pci.h>
49
50#include "opt_wsfb.h"
51#include "opt_wsdisplay_compat.h"
52
53#ifdef WCFB_DEBUG
54# define DPRINTF printf
55#else
56# define DPRINTF while (0) printf
57#endif
58
59static int	wcfb_match(device_t, cfdata_t, void *);
60static void	wcfb_attach(device_t, device_t, void *);
61static int	wcfb_ioctl(void *, void *, u_long, void *, int,
62		    struct lwp *);
63static paddr_t	wcfb_mmap(void *, void *, off_t, int);
64
65struct wcfb_softc {
66	device_t sc_dev;
67
68	pci_chipset_tag_t sc_pc;
69	pcitag_t sc_pcitag;
70
71	bus_space_tag_t sc_memt;
72	bus_space_tag_t sc_regt, sc_wtft;
73	bus_space_tag_t sc_iot;
74
75	bus_space_handle_t sc_fbh;
76	bus_space_handle_t sc_regh;
77	bus_addr_t sc_fb, sc_reg;
78	bus_size_t sc_fbsize, sc_regsize;
79
80	int sc_width, sc_height, sc_stride;
81	int sc_locked;
82	uint8_t *sc_fbaddr, *sc_fb0, *sc_fb1, *sc_shadow;
83	struct vcons_screen sc_console_screen;
84	struct wsscreen_descr sc_defaultscreen_descr;
85	const struct wsscreen_descr *sc_screens[1];
86	struct wsscreen_list sc_screenlist;
87	struct vcons_data vd;
88	int sc_mode, sc_dpms;
89	u_char sc_cmap_red[256];
90	u_char sc_cmap_green[256];
91	u_char sc_cmap_blue[256];
92	uint32_t sc_fb0off, sc_fb1off, sc_fb8size;
93
94	void (*copycols)(void *, int, int, int, int);
95	void (*erasecols)(void *, int, int, int, long);
96	void (*copyrows)(void *, int, int, int);
97	void (*eraserows)(void *, int, int, long);
98	void (*putchar)(void *, int, int, u_int, long);
99	void (*cursor)(void *, int, int, int);
100	int sc_is_jfb;
101};
102
103static void	wcfb_init_screen(void *, struct vcons_screen *, int, long *);
104
105CFATTACH_DECL_NEW(wcfb, sizeof(struct wcfb_softc),
106    wcfb_match, wcfb_attach, NULL, NULL);
107
108struct wsdisplay_accessops wcfb_accessops = {
109	wcfb_ioctl,
110	wcfb_mmap,
111	NULL,	/* alloc_screen */
112	NULL,	/* free_screen */
113	NULL,	/* show_screen */
114	NULL, 	/* load_font */
115	NULL,	/* pollc */
116	NULL	/* scroll */
117};
118
119static void	wcfb_putchar(void *, int, int, u_int, long);
120static void	wcfb_cursor(void *, int, int, int);
121static void	wcfb_copycols(void *, int, int, int, int);
122static void	wcfb_erasecols(void *, int, int, int, long);
123static void	wcfb_copyrows(void *, int, int, int);
124static void	wcfb_eraserows(void *, int, int, long);
125
126static void	wcfb_acc_putchar(void *, int, int, u_int, long);
127static void	wcfb_acc_cursor(void *, int, int, int);
128static void	wcfb_acc_copycols(void *, int, int, int, int);
129static void	wcfb_acc_erasecols(void *, int, int, int, long);
130static void	wcfb_acc_copyrows(void *, int, int, int);
131static void	wcfb_acc_eraserows(void *, int, int, long);
132
133static void 	wcfb_putpalreg(struct wcfb_softc *, int, int, int, int);
134
135static void	wcfb_bitblt(struct wcfb_softc *, int, int, int, int, int,
136			int, uint32_t);
137static void	wcfb_rectfill(struct wcfb_softc *, int, int, int, int, int);
138static void	wcfb_rop_common(struct wcfb_softc *, bus_addr_t, int, int, int,
139			int, int, int, uint32_t, int32_t);
140static void	wcfb_rop_jfb(struct wcfb_softc *, int, int, int, int, int, int,
141			uint32_t, int32_t);
142static int	wcfb_rop_wait(struct wcfb_softc *);
143
144static int
145wcfb_match(device_t parent, cfdata_t match, void *aux)
146{
147	struct pci_attach_args *pa = aux;
148
149	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_3DLABS &&
150	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3DLABS_WILDCAT5110)
151		return 100;
152
153	return 0;
154}
155
156static void
157wcfb_attach(device_t parent, device_t self, void *aux)
158{
159	struct wcfb_softc *sc = device_private(self);
160	struct pci_attach_args *pa = aux;
161	struct rasops_info	*ri;
162	prop_dictionary_t	dict;
163	struct wsemuldisplaydev_attach_args aa;
164	int 			i, j;
165	uint32_t		reg;
166	unsigned long		defattr;
167	bool			is_console = 0;
168	uint32_t		sub;
169
170	sc->sc_dev = self;
171	sc->putchar = NULL;
172	pci_aprint_devinfo(pa, NULL);
173
174	dict = device_properties(self);
175	prop_dictionary_get_bool(dict, "is_console", &is_console);
176#ifndef WCFB_DEBUG
177	if (!is_console) return;
178#endif
179	sc->sc_memt = pa->pa_memt;
180	sc->sc_iot = pa->pa_iot;
181	sc->sc_pc = pa->pa_pc;
182	sc->sc_pcitag = pa->pa_tag;
183
184	if (pci_mapreg_map(pa, 0x14, PCI_MAPREG_TYPE_MEM, 0,
185	    &sc->sc_regt, &sc->sc_regh, &sc->sc_reg, &sc->sc_regsize)) {
186		aprint_error("%s: failed to map registers.\n",
187		    device_xname(sc->sc_dev));
188	}
189
190	if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM,
191	    BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE,
192	    &sc->sc_memt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) {
193		aprint_error("%s: failed to map framebuffer.\n",
194		    device_xname(sc->sc_dev));
195	}
196
197	sc->sc_fbaddr = bus_space_vaddr(sc->sc_memt, sc->sc_fbh);
198#ifdef DEBUG
199	memset(sc->sc_fbaddr, 0, sc->sc_fbsize);
200#endif
201	sc->sc_fb0off =
202	    bus_space_read_4(sc->sc_regt, sc->sc_regh,
203	        WC_FB8_ADDR0) - sc->sc_fb;
204	sc->sc_fb0 = sc->sc_fbaddr + sc->sc_fb0off;
205	sc->sc_fb1off =
206	    bus_space_read_4(sc->sc_regt, sc->sc_regh,
207	        WC_FB8_ADDR1) - sc->sc_fb;
208	sc->sc_fb1 = sc->sc_fbaddr + sc->sc_fb1off;
209	sc->sc_fb8size = 2 * (sc->sc_fb1off - sc->sc_fb0off);
210
211	sub = pci_conf_read(sc->sc_pc, sc->sc_pcitag, PCI_SUBSYS_ID_REG);
212	aprint_normal("subsys: %08x\n", sub);
213	switch (sub) {
214		case WC_XVR1200:
215			sc->sc_is_jfb = 1;
216			break;
217		default:
218			sc->sc_is_jfb = 0;
219	}
220
221	reg = bus_space_read_4(sc->sc_regt, sc->sc_regh, WC_RESOLUTION);
222	sc->sc_height = (reg >> 16) + 1;
223#ifdef WCFB_DEBUG
224	sc->sc_height -= 200;
225#endif
226	sc->sc_width = (reg & 0xffff) + 1;
227	sc->sc_stride = 1 <<
228	    ((bus_space_read_4(sc->sc_regt, sc->sc_regh, WC_CONFIG) &
229	      0x00ff0000) >> 16);
230	aprint_normal_dev(self, "%d x %d, %d\n",
231	    sc->sc_width, sc->sc_height, sc->sc_stride);
232
233	if (sc->sc_is_jfb == 0) {
234		sc->sc_shadow = kmem_alloc(sc->sc_stride * sc->sc_height,
235		    KM_SLEEP);
236	}
237
238	for (i = 0x40; i < 0x100; i += 16) {
239		aprint_normal("%04x:", i);
240		for (j = 0; j < 16; j += 4) {
241			aprint_normal(" %08x", bus_space_read_4(sc->sc_regt,
242			    sc->sc_regh, 0x8000 + i + j));
243		}
244		aprint_normal("\n");
245	}
246
247	/* make sure video output is on */
248	bus_space_write_4(sc->sc_regt, sc->sc_regh, WC_DPMS_STATE, WC_DPMS_ON);
249	sc->sc_dpms = WSDISPLAYIO_VIDEO_ON;
250
251#if 0
252	/* testing & debugging voodoo */
253	memset(sc->sc_fb0, 0x01, 0x00100000);
254	memset(sc->sc_fb1, 0x00, 0x00100000);
255	wcfb_rop_wait(sc);
256	wcfb_rop_jfb(sc, 0, 0, 0, 0, 600, 600, WC_ROP_SET, 0xffffffff);
257	wcfb_rop_wait(sc);
258	delay(4000000);
259	bus_space_write_4(sc->sc_regt, sc->sc_regh, WC_FB8_ADDR1,
260	    bus_space_read_4(sc->sc_regt, sc->sc_regh, WC_FB8_ADDR0));
261	delay(8000000);
262#endif
263	sc->sc_defaultscreen_descr = (struct wsscreen_descr){
264		"default",
265		0, 0,
266		NULL,
267		8, 16,
268		WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
269		NULL
270	};
271	sc->sc_screens[0] = &sc->sc_defaultscreen_descr;
272	sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens};
273	sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
274	sc->sc_locked = 0;
275
276	vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr,
277	    &wcfb_accessops);
278	sc->vd.init_screen = wcfb_init_screen;
279
280	/* init engine here */
281#if 0
282	wcfb_init(sc);
283#endif
284
285	ri = &sc->sc_console_screen.scr_ri;
286
287	j = 0;
288	for (i = 0; i < 256; i++) {
289
290		sc->sc_cmap_red[i] = rasops_cmap[j];
291		sc->sc_cmap_green[i] = rasops_cmap[j + 1];
292		sc->sc_cmap_blue[i] = rasops_cmap[j + 2];
293		wcfb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1],
294		    rasops_cmap[j + 2]);
295		j += 3;
296	}
297
298	if (is_console) {
299		vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1,
300		    &defattr);
301		sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
302
303		if (sc->sc_is_jfb) {
304			wcfb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height,
305				ri->ri_devcmap[(defattr >> 16) & 0xff]);
306		} else {
307			memset(sc->sc_fb0,
308			    ri->ri_devcmap[(defattr >> 16) & 0xff],
309			    sc->sc_stride * sc->sc_height);
310			memset(sc->sc_fb1,
311			    ri->ri_devcmap[(defattr >> 16) & 0xff],
312			    sc->sc_stride * sc->sc_height);
313		}
314		sc->sc_defaultscreen_descr.textops = &ri->ri_ops;
315		sc->sc_defaultscreen_descr.capabilities = ri->ri_caps;
316		sc->sc_defaultscreen_descr.nrows = ri->ri_rows;
317		sc->sc_defaultscreen_descr.ncols = ri->ri_cols;
318		wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0,
319		    defattr);
320		vcons_replay_msgbuf(&sc->sc_console_screen);
321	} else {
322		/*
323		 * since we're not the console we can postpone the rest
324		 * until someone actually allocates a screen for us
325		 */
326		memset(sc->sc_fb0, WS_DEFAULT_BG,
327		    sc->sc_stride * sc->sc_height);
328		memset(sc->sc_fb1, WS_DEFAULT_BG,
329		    sc->sc_stride * sc->sc_height);
330		return;
331	}
332
333	aa.console = is_console;
334	aa.scrdata = &sc->sc_screenlist;
335	aa.accessops = &wcfb_accessops;
336	aa.accesscookie = &sc->vd;
337
338	config_found(sc->sc_dev, &aa, wsemuldisplaydevprint, CFARGS_NONE);
339}
340
341static int
342wcfb_putcmap(struct wcfb_softc *sc, struct wsdisplay_cmap *cm)
343{
344	u_char *r, *g, *b;
345	u_int index = cm->index;
346	u_int count = cm->count;
347	int i, error;
348	u_char rbuf[256], gbuf[256], bbuf[256];
349
350	if (cm->index >= 256 || cm->count > 256 ||
351	    (cm->index + cm->count) > 256)
352		return EINVAL;
353	error = copyin(cm->red, &rbuf[index], count);
354	if (error)
355		return error;
356	error = copyin(cm->green, &gbuf[index], count);
357	if (error)
358		return error;
359	error = copyin(cm->blue, &bbuf[index], count);
360	if (error)
361		return error;
362
363	memcpy(&sc->sc_cmap_red[index], &rbuf[index], count);
364	memcpy(&sc->sc_cmap_green[index], &gbuf[index], count);
365	memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count);
366
367	r = &sc->sc_cmap_red[index];
368	g = &sc->sc_cmap_green[index];
369	b = &sc->sc_cmap_blue[index];
370
371	for (i = 0; i < count; i++) {
372		wcfb_putpalreg(sc, index, *r, *g, *b);
373		index++;
374		r++, g++, b++;
375	}
376	return 0;
377}
378
379static int
380wcfb_getcmap(struct wcfb_softc *sc, struct wsdisplay_cmap *cm)
381{
382	u_int index = cm->index;
383	u_int count = cm->count;
384	int error;
385
386	if (index >= 255 || count > 256 || index + count > 256)
387		return EINVAL;
388
389	error = copyout(&sc->sc_cmap_red[index],   cm->red,   count);
390	if (error)
391		return error;
392	error = copyout(&sc->sc_cmap_green[index], cm->green, count);
393	if (error)
394		return error;
395	error = copyout(&sc->sc_cmap_blue[index],  cm->blue,  count);
396	if (error)
397		return error;
398
399	return 0;
400}
401
402static int
403wcfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
404    struct lwp *l)
405{
406	struct vcons_data *vd = v;
407	struct wcfb_softc *sc = vd->cookie;
408
409	switch (cmd) {
410	case WSDISPLAYIO_GTYPE:
411		*(u_int *)data = WSDISPLAY_TYPE_PCIMISC;
412		return 0;
413
414	/* PCI config read/write passthrough. */
415	case PCI_IOC_CFGREAD:
416	case PCI_IOC_CFGWRITE:
417		return pci_devioctl(sc->sc_pc, sc->sc_pcitag,
418		    cmd, data, flag, l);
419
420	case WSDISPLAYIO_GET_BUSID:
421		return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc,
422		    sc->sc_pcitag, data);
423
424	case WSDISPLAYIO_SVIDEO: {
425		int new_mode = *(int*)data;
426		if (new_mode != sc->sc_dpms) {
427			sc->sc_dpms = new_mode;
428			bus_space_write_4(sc->sc_regt, sc->sc_regh,
429			     WC_DPMS_STATE,
430			     (new_mode == WSDISPLAYIO_VIDEO_ON) ?
431			      WC_DPMS_ON : WC_DPMS_STANDBY);
432		}
433		}
434		return 0;
435
436	case WSDISPLAYIO_GVIDEO:
437		*(int*)data = sc->sc_dpms;
438		return 0;
439
440	case WSDISPLAYIO_GETCMAP:
441		return wcfb_getcmap(sc,
442		    (struct wsdisplay_cmap *)data);
443
444	case WSDISPLAYIO_PUTCMAP:
445		return wcfb_putcmap(sc,
446		    (struct wsdisplay_cmap *)data);
447
448	case WSDISPLAYIO_GET_FBINFO: {
449		struct wsdisplayio_fbinfo *fbi = data;
450
451		fbi->fbi_fbsize = sc->sc_fb8size;
452		fbi->fbi_fboffset = 0;
453		fbi->fbi_width = sc->sc_width;
454		fbi->fbi_height = sc->sc_height;
455		fbi->fbi_bitsperpixel = 8;
456		fbi->fbi_stride = sc->sc_stride;
457		fbi->fbi_pixeltype = WSFB_CI;
458		fbi->fbi_subtype.fbi_cmapinfo.cmap_entries = 256;
459		fbi->fbi_flags = WSFB_VRAM_IS_SPLIT;
460		return 0;
461		}
462	}
463	return EPASSTHROUGH;
464}
465
466static paddr_t
467wcfb_mmap(void *v, void *vs, off_t offset, int prot)
468{
469	struct vcons_data *vd = v;
470	struct wcfb_softc *sc = vd->cookie;
471
472	/* XXX in theory the order is not fixed... */
473
474	if (offset < sc->sc_fb8size)
475		return bus_space_mmap(sc->sc_memt, sc->sc_fb + sc->sc_fb0off,
476		    offset, prot,
477		    BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE);
478	/*
479	 * restrict all other mappings to processes with superuser privileges
480	 * or the kernel itself
481	 */
482	if (kauth_authorize_machdep(kauth_cred_get(),
483	    KAUTH_MACHDEP_UNMANAGEDMEM,
484	    NULL, NULL, NULL, NULL) != 0) {
485		aprint_normal_dev(sc->sc_dev, "mmap() rejected.\n");
486		return -1;
487	}
488
489	/* may want to mmap() registers at some point */
490
491	return -1;
492}
493
494static void
495wcfb_init_screen(void *cookie, struct vcons_screen *scr,
496    int existing, long *defattr)
497{
498	struct wcfb_softc *sc = cookie;
499	struct rasops_info *ri = &scr->scr_ri;
500
501	ri->ri_depth = 8;
502	ri->ri_width = sc->sc_width;
503	ri->ri_height = sc->sc_height;
504	ri->ri_stride = sc->sc_stride;
505	ri->ri_flg = RI_CENTER /*| RI_FULLCLEAR*/;
506
507	if (sc->sc_is_jfb) {
508		ri->ri_bits = sc->sc_fb0;
509	} else {
510		ri->ri_bits = sc->sc_shadow;
511	}
512	if (existing) {
513		ri->ri_flg |= RI_CLEAR;
514	}
515
516	rasops_init(ri, 0, 0);
517	ri->ri_caps = WSSCREEN_WSCOLORS;
518
519	rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight,
520		    sc->sc_width / ri->ri_font->fontwidth);
521
522	ri->ri_hw = scr;
523	sc->putchar = ri->ri_ops.putchar;
524	sc->copyrows = ri->ri_ops.copyrows;
525	sc->eraserows = ri->ri_ops.eraserows;
526	sc->copycols = ri->ri_ops.copycols;
527	sc->erasecols = ri->ri_ops.erasecols;
528
529	if (sc->sc_is_jfb) {
530		ri->ri_ops.copyrows = wcfb_acc_copyrows;
531		ri->ri_ops.copycols = wcfb_acc_copycols;
532		ri->ri_ops.eraserows = wcfb_acc_eraserows;
533		ri->ri_ops.erasecols = wcfb_acc_erasecols;
534		ri->ri_ops.putchar = wcfb_acc_putchar;
535		ri->ri_ops.cursor = wcfb_acc_cursor;
536	} else {
537		ri->ri_ops.copyrows = wcfb_copyrows;
538		ri->ri_ops.copycols = wcfb_copycols;
539		ri->ri_ops.eraserows = wcfb_eraserows;
540		ri->ri_ops.erasecols = wcfb_erasecols;
541		ri->ri_ops.putchar = wcfb_putchar;
542		ri->ri_ops.cursor = wcfb_cursor;
543	}
544}
545
546static void
547wcfb_putchar(void *cookie, int row, int col, u_int c, long attr)
548{
549	struct rasops_info *ri = cookie;
550	struct vcons_screen *scr = ri->ri_hw;
551	struct wcfb_softc *sc = scr->scr_cookie;
552	int offset = (ri->ri_yorigin + row * ri->ri_font->fontheight) *
553	    sc->sc_stride + ri->ri_xorigin + col * ri->ri_font->fontwidth;
554	uint8_t *from, *to0, *to1;
555	int i;
556
557	sc->putchar(ri, row, col, c, attr);
558	from = sc->sc_shadow + offset;
559	to0 = sc->sc_fb0 + offset;
560	to1 = sc->sc_fb1 + offset;
561	for (i = 0; i < ri->ri_font->fontheight; i++) {
562		memcpy(to0, from, ri->ri_font->fontwidth);
563		memcpy(to1, from, ri->ri_font->fontwidth);
564		to0 += sc->sc_stride;
565		to1 += sc->sc_stride;
566		from += sc->sc_stride;
567	}
568}
569
570static void
571wcfb_putpalreg(struct wcfb_softc *sc, int i, int r, int g, int b)
572{
573	uint32_t rgb;
574
575	bus_space_write_4(sc->sc_regt, sc->sc_regh, WC_CMAP_INDEX, i);
576	rgb = (b << 22) | (g << 12) | (r << 2);
577	bus_space_write_4(sc->sc_regt, sc->sc_regh, WC_CMAP_DATA, rgb);
578}
579
580static void
581wcfb_cursor(void *cookie, int on, int row, int col)
582{
583	struct rasops_info *ri = cookie;
584	struct vcons_screen *scr = ri->ri_hw;
585	struct wcfb_softc *sc = scr->scr_cookie;
586	int coffset;
587
588	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
589
590		if (ri->ri_flg & RI_CURSOR) {
591			/* remove cursor */
592			coffset = ri->ri_ccol + (ri->ri_crow * ri->ri_cols);
593#ifdef WSDISPLAY_SCROLLSUPPORT
594			coffset += scr->scr_offset_to_zero;
595#endif
596			wcfb_putchar(cookie, ri->ri_crow,
597			    ri->ri_ccol, scr->scr_chars[coffset],
598			    scr->scr_attrs[coffset]);
599			ri->ri_flg &= ~RI_CURSOR;
600		}
601		ri->ri_crow = row;
602		ri->ri_ccol = col;
603		if (on) {
604			long attr, revattr;
605			coffset = col + (row * ri->ri_cols);
606#ifdef WSDISPLAY_SCROLLSUPPORT
607			coffset += scr->scr_offset_to_zero;
608#endif
609			attr = scr->scr_attrs[coffset];
610			revattr = attr ^ 0xffff0000;
611
612			wcfb_putchar(cookie, ri->ri_crow, ri->ri_ccol,
613			    scr->scr_chars[coffset], revattr);
614			ri->ri_flg |= RI_CURSOR;
615		}
616	} else {
617		ri->ri_crow = row;
618		ri->ri_ccol = col;
619		ri->ri_flg &= ~RI_CURSOR;
620	}
621}
622
623static void
624wcfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
625{
626	struct rasops_info *ri = cookie;
627	struct vcons_screen *scr = ri->ri_hw;
628	struct wcfb_softc *sc = scr->scr_cookie;
629	int offset = (ri->ri_yorigin + row * ri->ri_font->fontheight) *
630	    sc->sc_stride + ri->ri_xorigin + dstcol * ri->ri_font->fontwidth;
631	uint8_t *from, *to0, *to1;
632	int i;
633
634	sc->copycols(ri, row, srccol, dstcol, ncols);
635	from = sc->sc_shadow + offset;
636	to0 = sc->sc_fb0 + offset;
637	to1 = sc->sc_fb1 + offset;
638	for (i = 0; i < ri->ri_font->fontheight; i++) {
639		memcpy(to0, from, ri->ri_font->fontwidth * ncols);
640		memcpy(to1, from, ri->ri_font->fontwidth * ncols);
641		to0 += sc->sc_stride;
642		to1 += sc->sc_stride;
643		from += sc->sc_stride;
644	}
645}
646
647static void
648wcfb_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr)
649{
650	struct rasops_info *ri = cookie;
651	struct vcons_screen *scr = ri->ri_hw;
652	struct wcfb_softc *sc = scr->scr_cookie;
653	int offset = (ri->ri_yorigin + row * ri->ri_font->fontheight) *
654	    sc->sc_stride + ri->ri_xorigin + startcol * ri->ri_font->fontwidth;
655	uint8_t *to0, *to1;
656	int i;
657
658	sc->erasecols(ri, row, startcol, ncols, fillattr);
659
660	to0 = sc->sc_fb0 + offset;
661	to1 = sc->sc_fb1 + offset;
662	for (i = 0; i < ri->ri_font->fontheight; i++) {
663		memset(to0, ri->ri_devcmap[(fillattr >> 16) & 0xff],
664		    ri->ri_font->fontwidth * ncols);
665		memset(to1, ri->ri_devcmap[(fillattr >> 16) & 0xff],
666		    ri->ri_font->fontwidth * ncols);
667		to0 += sc->sc_stride;
668		to1 += sc->sc_stride;
669	}
670}
671
672static void
673wcfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
674{
675	struct rasops_info *ri = cookie;
676	struct vcons_screen *scr = ri->ri_hw;
677	struct wcfb_softc *sc = scr->scr_cookie;
678	int offset = (ri->ri_yorigin + dstrow * ri->ri_font->fontheight) *
679	    sc->sc_stride + ri->ri_xorigin;
680	uint8_t *from, *to0, *to1;
681	int i;
682
683	sc->copyrows(ri, srcrow, dstrow, nrows);
684
685	from = sc->sc_shadow + offset;
686	to0 = sc->sc_fb0 + offset;
687	to1 = sc->sc_fb1 + offset;
688	for (i = 0; i < ri->ri_font->fontheight * nrows; i++) {
689		memcpy(to0, from, ri->ri_emuwidth);
690		memcpy(to1, from, ri->ri_emuwidth);
691		to0 += sc->sc_stride;
692		to1 += sc->sc_stride;
693		from += sc->sc_stride;
694	}
695}
696
697static void
698wcfb_eraserows(void *cookie, int row, int nrows, long fillattr)
699{
700	struct rasops_info *ri = cookie;
701	struct vcons_screen *scr = ri->ri_hw;
702	struct wcfb_softc *sc = scr->scr_cookie;
703	int offset = (ri->ri_yorigin + row * ri->ri_font->fontheight) *
704	    sc->sc_stride + ri->ri_xorigin;
705	uint8_t *to0, *to1;
706	int i;
707
708	sc->eraserows(ri, row, nrows, fillattr);
709
710	to0 = sc->sc_fb0 + offset;
711	to1 = sc->sc_fb1 + offset;
712	for (i = 0; i < ri->ri_font->fontheight * nrows; i++) {
713		memset(to0, ri->ri_devcmap[(fillattr >> 16) & 0xff],
714		    ri->ri_emuwidth);
715		memset(to1, ri->ri_devcmap[(fillattr >> 16) & 0xff],
716		    ri->ri_emuwidth);
717		to0 += sc->sc_stride;
718		to1 += sc->sc_stride;
719	}
720}
721
722static void
723wcfb_bitblt(struct wcfb_softc *sc, int sx, int sy, int dx, int dy, int w,
724		 int h, uint32_t rop)
725{
726	wcfb_rop_wait(sc);
727	wcfb_rop_jfb(sc, sx, sy, dx, dy, w, h, rop, 0x0f);
728}
729
730static void
731wcfb_rectfill(struct wcfb_softc *sc, int x, int y, int w, int h, int bg)
732{
733	int32_t mask;
734
735	/* clear everything just in case... */
736	wcfb_rop_wait(sc);
737	wcfb_rop_jfb(sc, x, y, x, y, w, h, WC_ROP_CLEAR, 0xffffffff);
738
739	/* pixels to set... */
740	mask = 0x0f & bg;
741	if (mask != 0) {
742		wcfb_rop_wait(sc);
743		wcfb_rop_jfb(sc, x, y, x, y, w, h, WC_ROP_SET, mask);
744	}
745
746}
747
748void
749wcfb_rop_common(struct wcfb_softc *sc, bus_addr_t reg, int sx, int sy,
750    int dx, int dy, int w, int h, uint32_t rop, int32_t planemask)
751{
752	int dir = 0;
753
754	/*
755	 * Compute rop direction. This only really matters for
756	 * screen-to-screen copies.
757	 */
758	if (sy < dy /* && sy + h > dy */) {
759		sy += h - 1;
760		dy += h;
761		dir |= WC_BLT_DIR_BACKWARDS_Y;
762	}
763	if (sx < dx /* && sx + w > dx */) {
764		sx += w - 1;
765		dx += w;
766		dir |= WC_BLT_DIR_BACKWARDS_X;
767	}
768
769	/* Which one of those below is your magic number for today? */
770	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0x61000001);
771	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0);
772	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0x6301c080);
773	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0x80000000);
774	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, rop);
775	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, planemask);
776	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0);
777	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0x64000303);
778	/*
779	 * This value is a pixel offset within the destination area. It is
780	 * probably used to define complex polygon shapes, with the
781	 * last pixel in the list being back to (0,0).
782	 */
783	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, WCFB_COORDS(0, 0));
784	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0);
785	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0x00030000);
786	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0x2200010d);
787
788	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0x33f01000 | dir);
789	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, WCFB_COORDS(dx, dy));
790	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, WCFB_COORDS(w, h));
791	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, WCFB_COORDS(sx, sy));
792}
793
794
795static void
796wcfb_rop_jfb(struct wcfb_softc *sc, int sx, int sy, int dx, int dy,
797             int w, int h, uint32_t rop, int32_t planemask)
798{
799	bus_addr_t reg = WC_JFB_ENGINE;
800	uint32_t spr, splr;
801
802#if 0
803	/*
804	 * Pick the current spr and splr values from the communication
805	 * area if possible.
806	 */
807	if (sc->sc_comm != NULL) {
808		spr = sc->sc_comm[IFB_SHARED_TERM8_SPR >> 2];
809		splr = sc->sc_comm[IFB_SHARED_TERM8_SPLR >> 2];
810	} else
811#endif
812	{
813		/* supposedly sane defaults */
814		spr = 0x54ff0303;
815		splr = 0x5c0000ff;
816	}
817
818	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0x00400016);
819	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0x5b000002);
820	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0x5a000000);
821	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, spr);
822	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, splr);
823
824	wcfb_rop_common(sc, reg, sx, sy, dx, dy, w, h, rop, planemask);
825
826	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0x5a000001);
827	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, 0x5b000001);
828}
829
830static int
831wcfb_rop_wait(struct wcfb_softc *sc)
832{
833	int i;
834
835	for (i = 1000000; i != 0; i--) {
836		if (bus_space_read_4(sc->sc_regt, sc->sc_regh,
837		    WC_STATUS) & WC_STATUS_DONE)
838			break;
839		delay(1);
840	}
841
842	return i;
843}
844
845static void
846wcfb_acc_putchar(void *cookie, int row, int col, u_int c, long attr)
847{
848	struct rasops_info *ri = cookie;
849	struct vcons_screen *scr = ri->ri_hw;
850	struct wcfb_softc *sc = scr->scr_cookie;
851	struct wsdisplay_font *font = PICK_FONT(ri, c);
852	int x, y, wi, he;
853	uint32_t bg;
854
855	wi = font->fontwidth;
856	he = font->fontheight;
857	x = ri->ri_xorigin + col * wi;
858	y = ri->ri_yorigin + row * he;
859	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
860	if (c == 0x20) {
861		wcfb_rectfill(sc, x, y, wi, he, bg);
862		return;
863	}
864	/* we wait until the blitter is idle... */
865	wcfb_rop_wait(sc);
866	/* ... draw the character into buffer 0 ... */
867	sc->putchar(ri, row, col, c, attr);
868	/* ... and then blit it into buffer 1 */
869	wcfb_bitblt(sc, x, y, x, y, wi, he, WC_ROP_COPY);
870}
871
872static void
873wcfb_acc_cursor(void *cookie, int on, int row, int col)
874{
875	struct rasops_info *ri = cookie;
876	struct vcons_screen *scr = ri->ri_hw;
877	struct wcfb_softc *sc = scr->scr_cookie;
878	int x, y, wi, he;
879
880	wi = ri->ri_font->fontwidth;
881	he = ri->ri_font->fontheight;
882
883	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
884		x = ri->ri_ccol * wi + ri->ri_xorigin;
885		y = ri->ri_crow * he + ri->ri_yorigin;
886		if (ri->ri_flg & RI_CURSOR) {
887			wcfb_bitblt(sc, x, y, x, y, wi, he, WC_ROP_XOR);
888			ri->ri_flg &= ~RI_CURSOR;
889		}
890		ri->ri_crow = row;
891		ri->ri_ccol = col;
892		if (on) {
893			x = ri->ri_ccol * wi + ri->ri_xorigin;
894			y = ri->ri_crow * he + ri->ri_yorigin;
895			wcfb_bitblt(sc, x, y, x, y, wi, he, WC_ROP_XOR);
896			ri->ri_flg |= RI_CURSOR;
897		}
898	} else {
899		scr->scr_ri.ri_crow = row;
900		scr->scr_ri.ri_ccol = col;
901		scr->scr_ri.ri_flg &= ~RI_CURSOR;
902	}
903
904}
905
906static void
907wcfb_acc_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
908{
909	struct rasops_info *ri = cookie;
910	struct vcons_screen *scr = ri->ri_hw;
911	struct wcfb_softc *sc = scr->scr_cookie;
912	int32_t xs, xd, y, width, height;
913
914	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
915		xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
916		xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
917		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
918		width = ri->ri_font->fontwidth * ncols;
919		height = ri->ri_font->fontheight;
920		wcfb_bitblt(sc, xs, y, xd, y, width, height, WC_ROP_COPY);
921	}
922}
923
924static void
925wcfb_acc_erasecols(void *cookie, int row, int startcol, int ncols,
926		long fillattr)
927{
928	struct rasops_info *ri = cookie;
929	struct vcons_screen *scr = ri->ri_hw;
930	struct wcfb_softc *sc = scr->scr_cookie;
931	int32_t x, y, width, height, fg, bg, ul;
932
933	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
934		x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
935		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
936		width = ri->ri_font->fontwidth * ncols;
937		height = ri->ri_font->fontheight;
938		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
939
940		wcfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
941	}
942}
943
944static void
945wcfb_acc_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
946{
947	struct rasops_info *ri = cookie;
948	struct vcons_screen *scr = ri->ri_hw;
949	struct wcfb_softc *sc = scr->scr_cookie;
950	int32_t x, ys, yd, width, height;
951
952	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
953		x = ri->ri_xorigin;
954		ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
955		yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
956		width = ri->ri_emuwidth;
957		height = ri->ri_font->fontheight * nrows;
958		wcfb_bitblt(sc, x, ys, x, yd, width, height, WC_ROP_COPY);
959	}
960}
961
962static void
963wcfb_acc_eraserows(void *cookie, int row, int nrows, long fillattr)
964{
965	struct rasops_info *ri = cookie;
966	struct vcons_screen *scr = ri->ri_hw;
967	struct wcfb_softc *sc = scr->scr_cookie;
968	int32_t x, y, width, height, fg, bg, ul;
969
970	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
971		x = ri->ri_xorigin;
972		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
973		width = ri->ri_emuwidth;
974		height = ri->ri_font->fontheight * nrows;
975		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
976
977		wcfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
978	}
979}
980