xref: /netbsd-src/sys/dev/pci/pm2fb.c (revision 3816d47b2c42fcd6e549e3407f842a5b1a1d23ad)
1 /*	$NetBSD: pm2fb.c,v 1.2 2009/10/28 04:25:13 macallan Exp $	*/
2 
3 /*
4  * Copyright (c) 2009 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 Permedia 2 graphics controllers
30  * tested on sparc64 only so far
31  */
32 
33 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: pm2fb.c,v 1.2 2009/10/28 04:25:13 macallan Exp $");
35 
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/kernel.h>
39 #include <sys/device.h>
40 #include <sys/malloc.h>
41 #include <sys/lwp.h>
42 #include <sys/kauth.h>
43 
44 #include <uvm/uvm_extern.h>
45 
46 #include <dev/videomode/videomode.h>
47 
48 #include <dev/pci/pcivar.h>
49 #include <dev/pci/pcireg.h>
50 #include <dev/pci/pcidevs.h>
51 #include <dev/pci/pciio.h>
52 #include <dev/pci/pm2reg.h>
53 
54 #include <dev/wscons/wsdisplayvar.h>
55 #include <dev/wscons/wsconsio.h>
56 #include <dev/wsfont/wsfont.h>
57 #include <dev/rasops/rasops.h>
58 #include <dev/wscons/wsdisplay_vconsvar.h>
59 
60 #include <dev/i2c/i2cvar.h>
61 
62 struct pm2fb_softc {
63 	device_t sc_dev;
64 
65 	pci_chipset_tag_t sc_pc;
66 	pcitag_t sc_pcitag;
67 
68 	bus_space_tag_t sc_memt;
69 	bus_space_tag_t sc_iot;
70 
71 	bus_space_handle_t sc_fbh;
72 	bus_space_handle_t sc_regh;
73 	bus_addr_t sc_fb, sc_reg;
74 	bus_size_t sc_fbsize, sc_regsize;
75 
76 	int sc_width, sc_height, sc_depth, sc_stride;
77 	int sc_locked;
78 	void *sc_fbaddr;
79 	struct vcons_screen sc_console_screen;
80 	struct wsscreen_descr sc_defaultscreen_descr;
81 	const struct wsscreen_descr *sc_screens[1];
82 	struct wsscreen_list sc_screenlist;
83 	struct vcons_data vd;
84 	int sc_mode;
85 	u_char sc_cmap_red[256];
86 	u_char sc_cmap_green[256];
87 	u_char sc_cmap_blue[256];
88 	/* engine stuff */
89 	uint32_t sc_master_cntl;
90 };
91 
92 static int	pm2fb_match(device_t, cfdata_t, void *);
93 static void	pm2fb_attach(device_t, device_t, void *);
94 
95 CFATTACH_DECL_NEW(pm2fb, sizeof(struct pm2fb_softc),
96     pm2fb_match, pm2fb_attach, NULL, NULL);
97 
98 extern const u_char rasops_cmap[768];
99 
100 static int	pm2fb_ioctl(void *, void *, u_long, void *, int,
101 			     struct lwp *);
102 static paddr_t	pm2fb_mmap(void *, void *, off_t, int);
103 static void	pm2fb_init_screen(void *, struct vcons_screen *, int, long *);
104 
105 static int	pm2fb_putcmap(struct pm2fb_softc *, struct wsdisplay_cmap *);
106 static int 	pm2fb_getcmap(struct pm2fb_softc *, struct wsdisplay_cmap *);
107 static void	pm2fb_restore_palette(struct pm2fb_softc *);
108 static int 	pm2fb_putpalreg(struct pm2fb_softc *, uint8_t, uint8_t,
109 			    uint8_t, uint8_t);
110 
111 static void	pm2fb_init(struct pm2fb_softc *);
112 static void	pm2fb_flush_engine(struct pm2fb_softc *);
113 static void	pm2fb_rectfill(struct pm2fb_softc *, int, int, int, int,
114 			    uint32_t);
115 static void	pm2fb_bitblt(struct pm2fb_softc *, int, int, int, int, int,
116 			    int, int);
117 
118 static void	pm2fb_cursor(void *, int, int, int);
119 #if 0
120 static void	pm2fb_putchar(void *, int, int, u_int, long);
121 #endif
122 static void	pm2fb_copycols(void *, int, int, int, int);
123 static void	pm2fb_erasecols(void *, int, int, int, long);
124 static void	pm2fb_copyrows(void *, int, int, int);
125 static void	pm2fb_eraserows(void *, int, int, long);
126 
127 struct wsdisplay_accessops pm2fb_accessops = {
128 	pm2fb_ioctl,
129 	pm2fb_mmap,
130 	NULL,	/* alloc_screen */
131 	NULL,	/* free_screen */
132 	NULL,	/* show_screen */
133 	NULL, 	/* load_font */
134 	NULL,	/* pollc */
135 	NULL	/* scroll */
136 };
137 
138 static inline void
139 pm2fb_wait(struct pm2fb_softc *sc, int slots)
140 {
141 	uint32_t reg;
142 
143 	do {
144 		reg = bus_space_read_4(sc->sc_memt, sc->sc_regh,
145 			PM2_INPUT_FIFO_SPACE);
146 	} while (reg <= slots);
147 }
148 
149 static void
150 pm2fb_flush_engine(struct pm2fb_softc *sc)
151 {
152 
153 	pm2fb_wait(sc, 2);
154 
155 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_FILTER_MODE,
156 	    PM2FLT_PASS_SYNC);
157 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_SYNC, 0);
158 	do {
159 		while (bus_space_read_4(sc->sc_memt, sc->sc_regh,
160 			PM2_OUTPUT_FIFO_WORDS) == 0);
161 	} while (bus_space_read_4(sc->sc_memt, sc->sc_regh, PM2_OUTPUT_FIFO) !=
162 	    0x188);
163 }
164 
165 static int
166 pm2fb_match(device_t parent, cfdata_t match, void *aux)
167 {
168 	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
169 
170 	if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY)
171 		return 0;
172 	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_3DLABS)
173 		return 0;
174 
175 	/* only cards tested on so far - likely need a list */
176 	if ((PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3DLABS_PERMEDIA2) ||
177 	    (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3DLABS_PERMEDIA2V))
178 		return 100;
179 	return (0);
180 }
181 
182 static void
183 pm2fb_attach(device_t parent, device_t self, void *aux)
184 {
185 	struct pm2fb_softc	*sc = device_private(self);
186 	struct pci_attach_args	*pa = aux;
187 	struct rasops_info	*ri;
188 	char devinfo[256];
189 	struct wsemuldisplaydev_attach_args aa;
190 	prop_dictionary_t	dict;
191 	unsigned long		defattr;
192 	bool			is_console;
193 	int i, j;
194 
195 	sc->sc_pc = pa->pa_pc;
196 	sc->sc_pcitag = pa->pa_tag;
197 	sc->sc_memt = pa->pa_memt;
198 	sc->sc_iot = pa->pa_iot;
199 	sc->sc_dev = self;
200 
201 	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
202 	aprint_normal(": %s\n", devinfo);
203 
204 	/* fill in parameters from properties */
205 	dict = device_properties(self);
206 	if (!prop_dictionary_get_uint32(dict, "width", &sc->sc_width)) {
207 		aprint_error("%s: no width property\n", device_xname(self));
208 		return;
209 	}
210 	if (!prop_dictionary_get_uint32(dict, "height", &sc->sc_height)) {
211 		aprint_error("%s: no height property\n", device_xname(self));
212 		return;
213 	}
214 	if (!prop_dictionary_get_uint32(dict, "depth", &sc->sc_depth)) {
215 		aprint_error("%s: no depth property\n", device_xname(self));
216 		return;
217 	}
218 	/*
219 	 * don't look at the linebytes property - The Raptor firmware lies
220 	 * about it. Get it from width * depth >> 3 instead.
221 	 */
222 	sc->sc_stride = sc->sc_width * (sc->sc_depth >> 3);
223 
224 	prop_dictionary_get_bool(dict, "is_console", &is_console);
225 
226 	if (pci_mapreg_map(pa, 0x14, PCI_MAPREG_TYPE_MEM,
227 	    BUS_SPACE_MAP_LINEAR,
228 	    &sc->sc_memt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) {
229 		aprint_error("%s: failed to map the frame buffer.\n",
230 		    device_xname(sc->sc_dev));
231 	}
232 	sc->sc_fbaddr = bus_space_vaddr(sc->sc_memt, sc->sc_fbh);
233 
234 	if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM, 0,
235 	    &sc->sc_memt, &sc->sc_regh, &sc->sc_reg, &sc->sc_regsize)) {
236 		aprint_error("%s: failed to map registers.\n",
237 		    device_xname(sc->sc_dev));
238 	}
239 
240 	/*
241 	 * XXX yeah, casting the fb address to uint32_t is formally wrong
242 	 * but as far as I know there are no PM2 with 64bit BARs
243 	 */
244 	aprint_normal("%s: %d MB aperture at 0x%08x\n", device_xname(self),
245 	    (int)(sc->sc_fbsize >> 20), (uint32_t)sc->sc_fb);
246 
247 	sc->sc_defaultscreen_descr = (struct wsscreen_descr){
248 		"default",
249 		0, 0,
250 		NULL,
251 		8, 16,
252 		WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
253 		NULL
254 	};
255 	sc->sc_screens[0] = &sc->sc_defaultscreen_descr;
256 	sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens};
257 	sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
258 	sc->sc_locked = 0;
259 
260 	vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr,
261 	    &pm2fb_accessops);
262 	sc->vd.init_screen = pm2fb_init_screen;
263 
264 	/* init engine here */
265 	pm2fb_init(sc);
266 
267 	ri = &sc->sc_console_screen.scr_ri;
268 
269 	j = 0;
270 	for (i = 0; i < (1 << sc->sc_depth); i++) {
271 
272 		sc->sc_cmap_red[i] = rasops_cmap[j];
273 		sc->sc_cmap_green[i] = rasops_cmap[j + 1];
274 		sc->sc_cmap_blue[i] = rasops_cmap[j + 2];
275 		pm2fb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1],
276 		    rasops_cmap[j + 2]);
277 		j += 3;
278 	}
279 
280 	if (is_console) {
281 		vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1,
282 		    &defattr);
283 		sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
284 
285 		pm2fb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height,
286 		    ri->ri_devcmap[(defattr >> 16) & 0xff]);
287 		sc->sc_defaultscreen_descr.textops = &ri->ri_ops;
288 		sc->sc_defaultscreen_descr.capabilities = ri->ri_caps;
289 		sc->sc_defaultscreen_descr.nrows = ri->ri_rows;
290 		sc->sc_defaultscreen_descr.ncols = ri->ri_cols;
291 		wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0,
292 		    defattr);
293 		vcons_replay_msgbuf(&sc->sc_console_screen);
294 	} else {
295 		/*
296 		 * since we're not the console we can postpone the rest
297 		 * until someone actually allocates a screen for us
298 		 */
299 		(*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr);
300 	}
301 
302 	aa.console = is_console;
303 	aa.scrdata = &sc->sc_screenlist;
304 	aa.accessops = &pm2fb_accessops;
305 	aa.accesscookie = &sc->vd;
306 
307 	config_found(sc->sc_dev, &aa, wsemuldisplaydevprint);
308 
309 	printf("ap1 register: %08x\n", bus_space_read_4(sc->sc_memt,
310 	    sc->sc_regh, PM2_APERTURE1_CONTROL));
311 
312 }
313 
314 static int
315 pm2fb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
316 	struct lwp *l)
317 {
318 	struct vcons_data *vd = v;
319 	struct pm2fb_softc *sc = vd->cookie;
320 	struct wsdisplay_fbinfo *wdf;
321 	struct vcons_screen *ms = vd->active;
322 
323 	switch (cmd) {
324 
325 		case WSDISPLAYIO_GTYPE:
326 			*(u_int *)data = WSDISPLAY_TYPE_PCIMISC;
327 			return 0;
328 
329 		/* PCI config read/write passthrough. */
330 		case PCI_IOC_CFGREAD:
331 		case PCI_IOC_CFGWRITE:
332 			return (pci_devioctl(sc->sc_pc, sc->sc_pcitag,
333 			    cmd, data, flag, l));
334 
335 		case WSDISPLAYIO_GINFO:
336 			if (ms == NULL)
337 				return ENODEV;
338 			wdf = (void *)data;
339 			wdf->height = ms->scr_ri.ri_height;
340 			wdf->width = ms->scr_ri.ri_width;
341 			wdf->depth = ms->scr_ri.ri_depth;
342 			wdf->cmsize = 256;
343 			return 0;
344 
345 		case WSDISPLAYIO_GETCMAP:
346 			return pm2fb_getcmap(sc,
347 			    (struct wsdisplay_cmap *)data);
348 
349 		case WSDISPLAYIO_PUTCMAP:
350 			return pm2fb_putcmap(sc,
351 			    (struct wsdisplay_cmap *)data);
352 
353 		case WSDISPLAYIO_LINEBYTES:
354 			*(u_int *)data = sc->sc_stride;
355 			return 0;
356 
357 		case WSDISPLAYIO_SMODE:
358 			{
359 				int new_mode = *(int*)data;
360 
361 				/* notify the bus backend */
362 				if (new_mode != sc->sc_mode) {
363 					sc->sc_mode = new_mode;
364 					if(new_mode == WSDISPLAYIO_MODE_EMUL) {
365 						pm2fb_restore_palette(sc);
366 						vcons_redraw_screen(ms);
367 					}
368 				}
369 			}
370 			return 0;
371 	}
372 	return EPASSTHROUGH;
373 }
374 
375 static paddr_t
376 pm2fb_mmap(void *v, void *vs, off_t offset, int prot)
377 {
378 	struct vcons_data *vd = v;
379 	struct pm2fb_softc *sc = vd->cookie;
380 	paddr_t pa;
381 
382 	/* 'regular' framebuffer mmap()ing */
383 	if (offset < sc->sc_fbsize) {
384 		pa = bus_space_mmap(sc->sc_memt, sc->sc_fb + offset, 0, prot,
385 		    BUS_SPACE_MAP_LINEAR);
386 		return pa;
387 	}
388 
389 	/*
390 	 * restrict all other mappings to processes with superuser privileges
391 	 * or the kernel itself
392 	 */
393 	if (kauth_authorize_generic(kauth_cred_get(), KAUTH_GENERIC_ISSUSER,
394 	    NULL) != 0) {
395 		aprint_normal("%s: mmap() rejected.\n",
396 		    device_xname(sc->sc_dev));
397 		return -1;
398 	}
399 
400 	if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) {
401 		pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
402 		    BUS_SPACE_MAP_LINEAR);
403 		return pa;
404 	}
405 
406 	if ((offset >= sc->sc_reg) &&
407 	    (offset < (sc->sc_reg + sc->sc_regsize))) {
408 		pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
409 		    BUS_SPACE_MAP_LINEAR);
410 		return pa;
411 	}
412 
413 #ifdef PCI_MAGIC_IO_RANGE
414 	/* allow mapping of IO space */
415 	if ((offset >= PCI_MAGIC_IO_RANGE) &&
416 	    (offset < PCI_MAGIC_IO_RANGE + 0x10000)) {
417 		pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE,
418 		    0, prot, BUS_SPACE_MAP_LINEAR);
419 		return pa;
420 	}
421 #endif
422 
423 #ifdef OFB_ALLOW_OTHERS
424 	if (offset >= 0x80000000) {
425 		pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
426 		    BUS_SPACE_MAP_LINEAR);
427 		return pa;
428 	}
429 #endif
430 	return -1;
431 }
432 
433 static void
434 pm2fb_init_screen(void *cookie, struct vcons_screen *scr,
435     int existing, long *defattr)
436 {
437 	struct pm2fb_softc *sc = cookie;
438 	struct rasops_info *ri = &scr->scr_ri;
439 
440 	ri->ri_depth = sc->sc_depth;
441 	ri->ri_width = sc->sc_width;
442 	ri->ri_height = sc->sc_height;
443 	ri->ri_stride = sc->sc_stride;
444 	ri->ri_flg = RI_CENTER | RI_FULLCLEAR;
445 
446 	ri->ri_bits = (char *)sc->sc_fbaddr;
447 
448 	if (existing) {
449 		ri->ri_flg |= RI_CLEAR;
450 	}
451 
452 	rasops_init(ri, sc->sc_height / 8, sc->sc_width / 8);
453 	ri->ri_caps = WSSCREEN_WSCOLORS;
454 
455 	rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight,
456 		    sc->sc_width / ri->ri_font->fontwidth);
457 
458 	ri->ri_hw = scr;
459 	ri->ri_ops.copyrows = pm2fb_copyrows;
460 	ri->ri_ops.copycols = pm2fb_copycols;
461 	ri->ri_ops.cursor = pm2fb_cursor;
462 	ri->ri_ops.eraserows = pm2fb_eraserows;
463 	ri->ri_ops.erasecols = pm2fb_erasecols;
464 #if 0
465 	ri->ri_ops.putchar = pm2fb_putchar;
466 #endif
467 }
468 
469 static int
470 pm2fb_putcmap(struct pm2fb_softc *sc, struct wsdisplay_cmap *cm)
471 {
472 	u_char *r, *g, *b;
473 	u_int index = cm->index;
474 	u_int count = cm->count;
475 	int i, error;
476 	u_char rbuf[256], gbuf[256], bbuf[256];
477 
478 #ifdef PM2FB_DEBUG
479 	aprint_debug("putcmap: %d %d\n",index, count);
480 #endif
481 	if (cm->index >= 256 || cm->count > 256 ||
482 	    (cm->index + cm->count) > 256)
483 		return EINVAL;
484 	error = copyin(cm->red, &rbuf[index], count);
485 	if (error)
486 		return error;
487 	error = copyin(cm->green, &gbuf[index], count);
488 	if (error)
489 		return error;
490 	error = copyin(cm->blue, &bbuf[index], count);
491 	if (error)
492 		return error;
493 
494 	memcpy(&sc->sc_cmap_red[index], &rbuf[index], count);
495 	memcpy(&sc->sc_cmap_green[index], &gbuf[index], count);
496 	memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count);
497 
498 	r = &sc->sc_cmap_red[index];
499 	g = &sc->sc_cmap_green[index];
500 	b = &sc->sc_cmap_blue[index];
501 
502 	for (i = 0; i < count; i++) {
503 		pm2fb_putpalreg(sc, index, *r, *g, *b);
504 		index++;
505 		r++, g++, b++;
506 	}
507 	return 0;
508 }
509 
510 static int
511 pm2fb_getcmap(struct pm2fb_softc *sc, struct wsdisplay_cmap *cm)
512 {
513 	u_int index = cm->index;
514 	u_int count = cm->count;
515 	int error;
516 
517 	if (index >= 255 || count > 256 || index + count > 256)
518 		return EINVAL;
519 
520 	error = copyout(&sc->sc_cmap_red[index],   cm->red,   count);
521 	if (error)
522 		return error;
523 	error = copyout(&sc->sc_cmap_green[index], cm->green, count);
524 	if (error)
525 		return error;
526 	error = copyout(&sc->sc_cmap_blue[index],  cm->blue,  count);
527 	if (error)
528 		return error;
529 
530 	return 0;
531 }
532 
533 static void
534 pm2fb_restore_palette(struct pm2fb_softc *sc)
535 {
536 	int i;
537 
538 	for (i = 0; i < (1 << sc->sc_depth); i++) {
539 		pm2fb_putpalreg(sc, i, sc->sc_cmap_red[i],
540 		    sc->sc_cmap_green[i], sc->sc_cmap_blue[i]);
541 	}
542 }
543 
544 static int
545 pm2fb_putpalreg(struct pm2fb_softc *sc, uint8_t idx, uint8_t r, uint8_t g,
546     uint8_t b)
547 {
548 	bus_space_write_1(sc->sc_memt, sc->sc_regh, PM2_DAC_PAL_WRITE_IDX, idx);
549 	bus_space_write_1(sc->sc_memt, sc->sc_regh, PM2_DAC_DATA, r);
550 	bus_space_write_1(sc->sc_memt, sc->sc_regh, PM2_DAC_DATA, g);
551 	bus_space_write_1(sc->sc_memt, sc->sc_regh, PM2_DAC_DATA, b);
552 	return 0;
553 }
554 
555 static void
556 pm2fb_init(struct pm2fb_softc *sc)
557 {
558 #if 0
559 	uint32_t datatype;
560 #endif
561 	pm2fb_flush_engine(sc);
562 
563 	pm2fb_wait(sc, 8);
564 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_SCREEN_BASE, 0);
565 #if 0
566 	switch (sc->sc_depth) {
567 		case 8:
568 			datatype = R128_GMC_DST_8BPP_CI;
569 			break;
570 		case 15:
571 			datatype = R128_GMC_DST_15BPP;
572 			break;
573 		case 16:
574 			datatype = R128_GMC_DST_16BPP;
575 			break;
576 		case 24:
577 			datatype = R128_GMC_DST_24BPP;
578 			break;
579 		case 32:
580 			datatype = R128_GMC_DST_32BPP;
581 			break;
582 		default:
583 			aprint_error("%s: unsupported depth %d\n",
584 			    device_xname(sc->sc_dev), sc->sc_depth);
585 			return;
586 	}
587 	sc->sc_master_cntl = R128_GMC_CLR_CMP_CNTL_DIS |
588 	    R128_GMC_AUX_CLIP_DIS | datatype;
589 #endif
590 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_BYPASS_MASK,
591 		0xffffffff);
592 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_FB_WRITE_MASK,
593 		0xffffffff);
594 	pm2fb_flush_engine(sc);
595 }
596 
597 static void
598 pm2fb_rectfill(struct pm2fb_softc *sc, int x, int y, int wi, int he,
599      uint32_t colour)
600 {
601 
602 	pm2fb_wait(sc, 6);
603 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_DDA_MODE,
604 	    0);
605 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_CONFIG,
606 	    PM2RECFG_WRITE_EN);
607 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_BLOCK_COLOUR,
608 	    colour);
609 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_RECT_START,
610 	    (y << 16) | x);
611 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_RECT_SIZE,
612 	    (he << 16) | wi);
613 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_RENDER,
614 	    PM2RE_RECTANGLE | PM2RE_INC_X | PM2RE_INC_Y | PM2RE_FASTFILL);
615 
616 	pm2fb_flush_engine(sc);
617 }
618 
619 static void
620 pm2fb_bitblt(struct pm2fb_softc *sc, int xs, int ys, int xd, int yd,
621     int wi, int he, int rop)
622 {
623 	uint32_t dir = 0;
624 
625 	if (yd <= ys) {
626 		dir |= PM2RE_INC_Y;
627 	}
628 	if (xd <= xs) {
629 		dir |= PM2RE_INC_X;
630 	}
631 	pm2fb_wait(sc, 6);
632 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_DDA_MODE, 0);
633 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_CONFIG,
634 	    PM2RECFG_READ_SRC | PM2RECFG_WRITE_EN | PM2RECFG_ROP_EN |
635 	    (rop << 6));
636 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_RECT_START,
637 	    (yd << 16) | xd);
638 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_RECT_SIZE,
639 	    (he << 16) | wi);
640 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_SOURCE_DELTA,
641 	    (((ys - yd) & 0xfff) << 16) | ((xs - xd) & 0xfff));
642 	bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_RENDER,
643 	    PM2RE_RECTANGLE | dir);
644 	pm2fb_flush_engine(sc);
645 }
646 
647 static void
648 pm2fb_cursor(void *cookie, int on, int row, int col)
649 {
650 	struct rasops_info *ri = cookie;
651 	struct vcons_screen *scr = ri->ri_hw;
652 	struct pm2fb_softc *sc = scr->scr_cookie;
653 	int x, y, wi, he;
654 
655 	wi = ri->ri_font->fontwidth;
656 	he = ri->ri_font->fontheight;
657 
658 	if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
659 		x = ri->ri_ccol * wi + ri->ri_xorigin;
660 		y = ri->ri_crow * he + ri->ri_yorigin;
661 		if (ri->ri_flg & RI_CURSOR) {
662 			pm2fb_bitblt(sc, x, y, x, y, wi, he, 12);
663 			ri->ri_flg &= ~RI_CURSOR;
664 		}
665 		ri->ri_crow = row;
666 		ri->ri_ccol = col;
667 		if (on) {
668 			x = ri->ri_ccol * wi + ri->ri_xorigin;
669 			y = ri->ri_crow * he + ri->ri_yorigin;
670 			pm2fb_bitblt(sc, x, y, x, y, wi, he, 12);
671 			ri->ri_flg |= RI_CURSOR;
672 		}
673 	} else {
674 		scr->scr_ri.ri_crow = row;
675 		scr->scr_ri.ri_ccol = col;
676 		scr->scr_ri.ri_flg &= ~RI_CURSOR;
677 	}
678 
679 }
680 
681 #if 0
682 static void
683 pm2fb_putchar(void *cookie, int row, int col, u_int c, long attr)
684 {
685 }
686 #endif
687 
688 static void
689 pm2fb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
690 {
691 	struct rasops_info *ri = cookie;
692 	struct vcons_screen *scr = ri->ri_hw;
693 	struct pm2fb_softc *sc = scr->scr_cookie;
694 	int32_t xs, xd, y, width, height;
695 
696 	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
697 		xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
698 		xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
699 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
700 		width = ri->ri_font->fontwidth * ncols;
701 		height = ri->ri_font->fontheight;
702 		pm2fb_bitblt(sc, xs, y, xd, y, width, height, 3);
703 	}
704 }
705 
706 static void
707 pm2fb_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr)
708 {
709 	struct rasops_info *ri = cookie;
710 	struct vcons_screen *scr = ri->ri_hw;
711 	struct pm2fb_softc *sc = scr->scr_cookie;
712 	int32_t x, y, width, height, fg, bg, ul;
713 
714 	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
715 		x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
716 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
717 		width = ri->ri_font->fontwidth * ncols;
718 		height = ri->ri_font->fontheight;
719 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
720 
721 		pm2fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
722 	}
723 }
724 
725 static void
726 pm2fb_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
727 {
728 	struct rasops_info *ri = cookie;
729 	struct vcons_screen *scr = ri->ri_hw;
730 	struct pm2fb_softc *sc = scr->scr_cookie;
731 	int32_t x, ys, yd, width, height;
732 
733 	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
734 		x = ri->ri_xorigin;
735 		ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
736 		yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
737 		width = ri->ri_emuwidth;
738 		height = ri->ri_font->fontheight*nrows;
739 		pm2fb_bitblt(sc, x, ys, x, yd, width, height, 3);
740 	}
741 }
742 
743 static void
744 pm2fb_eraserows(void *cookie, int row, int nrows, long fillattr)
745 {
746 	struct rasops_info *ri = cookie;
747 	struct vcons_screen *scr = ri->ri_hw;
748 	struct pm2fb_softc *sc = scr->scr_cookie;
749 	int32_t x, y, width, height, fg, bg, ul;
750 
751 	if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) {
752 		x = ri->ri_xorigin;
753 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
754 		width = ri->ri_emuwidth;
755 		height = ri->ri_font->fontheight * nrows;
756 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
757 
758 		pm2fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
759 	}
760 }
761 
762