xref: /openbsd/sys/arch/sparc64/dev/ifb.c (revision c30d52ae)
1 /*	$OpenBSD: ifb.c,v 1.21 2013/07/16 22:31:15 miod Exp $	*/
2 
3 /*
4  * Copyright (c) 2007, 2008, 2009 Miodrag Vallat.
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 /*
20  * Least-effort driver for the Sun Expert3D cards (based on the
21  * ``Wildcat'' chips).
22  *
23  * There is no public documentation for these chips available.
24  * Since they are no longer supported by 3DLabs (which got bought by
25  * Creative), and Sun does not want to publish even minimal information
26  * or source code, the best we can do is experiment.
27  *
28  * Quoting Alan Coopersmith in
29  * http://mail.opensolaris.org/pipermail/opensolaris-discuss/2005-December/011885.html
30  * ``Unfortunately, the lawyers have asked we not give details about why
31  *   specific components are not being released.''
32  */
33 
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/device.h>
37 #include <sys/errno.h>
38 #include <sys/ioctl.h>
39 #include <sys/malloc.h>
40 #include <sys/pciio.h>
41 
42 #include <uvm/uvm_extern.h>
43 
44 #include <machine/autoconf.h>
45 #include <machine/bus.h>
46 #include <machine/intr.h>
47 #include <machine/openfirm.h>
48 
49 #include <dev/pci/pcireg.h>
50 #include <dev/pci/pcivar.h>
51 
52 #include <dev/wscons/wsconsio.h>
53 #include <dev/wscons/wsdisplayvar.h>
54 
55 #include <dev/rasops/rasops.h>
56 
57 #include <machine/fbvar.h>
58 
59 #ifdef APERTURE
60 extern int allowaperture;
61 #endif
62 
63 /*
64  * Parts of the following hardware knowledge come from David S. Miller's
65  * XVR-500 Linux driver (drivers/video/sunxvr500.c).
66  */
67 
68 /*
69  * The Expert3D and Expert3d-Lite cards are built around the Wildcat
70  * 5110, 6210 and 7210 chips.
71  *
72  * The card exposes the following resources:
73  * - a 32MB (ifb), 64MB (xvr600) or 128MB (jfb) aperture window in which
74  *   views to the different frame buffer areas can be mapped, in the first BAR.
75  * - a 64KB or 128KB PROM and registers area, in the second BAR.
76  * - a 8MB ``direct burst'' memory mapping, in the third BAR.
77  *
78  * The location of this BAR range is pointed to by a board-specific PCI
79  * configuration register.
80  *
81  * In the state the PROM leaves us in, the 8MB frame buffer windows map
82  * the video memory as interleaved stripes, of which the non-visible parts
83  * can still be addressed (probably for fast screen switching).
84  *
85  * Unfortunately, since we do not know how to reconfigure the stripes
86  * to provide at least a linear frame buffer, we have to write to both
87  * windows and have them provide the complete image.
88  *
89  * Moreover, high pixel values in the overlay planes (such as 0xff or 0xfe)
90  * seem to enable other planes with random contents, so we'll limit ourselves
91  * to 7bpp operation.
92  */
93 
94 /*
95  * The Fcode driver sets up a communication structure, allowing third-party
96  * code to reprogram the video mode while still allowing the Fcode routines
97  * to access the overlay planes.
98  *
99  * We'll use this information as well, although so far it's unlikely
100  * any code will do so, as long as the only documentation for this
101  * hardware amounts to zilch.
102  */
103 
104 /* probably some form of signature */
105 #define	IFB_SHARED_SIGNATURE		0x00
106 #define	SIG_IFB					0x09209911
107 #define	SIG_JFB					0x05140213
108 #define	IFB_SHARED_MONITOR_MODE		0x10
109 #define	IFB_SHARED_WIDTH		0x14
110 #define	IFB_SHARED_HEIGHT		0x18
111 #define	IFB_SHARED_V_FREQ		0x1c
112 #define	IFB_SHARED_TIMING_H_FP		0x20
113 #define	IFB_SHARED_TIMING_H_SYNC	0x24
114 #define	IFB_SHARED_TIMING_H_BP		0x28
115 #define	IFB_SHARED_TIMING_V_FP		0x2c
116 #define	IFB_SHARED_TIMING_V_SYNC	0x30
117 #define	IFB_SHARED_TIMING_V_BP		0x34
118 #define	IFB_SHARED_TIMING_FLAGS		0x38
119 #define	IFB_SHARED_CMAP_DIRTY		0x3c
120 #define	IFB_SHARED_TERM8_GSR		0x4c
121 #define	IFB_SHARED_TERM8_SPR		0x50
122 #define	IFB_SHARED_TERM8_SPLR		0x54
123 
124 /*
125  * The Expert3D has an extra BAR that is not present on the -Lite
126  * version.  This register contains bits that tell us how many BARs to
127  * skip before we get to the BARs that interest us.
128  */
129 #define IFB_PCI_CFG			0x5c
130 #define IFB_PCI_CFG_BAR_OFFSET(x)	((x & 0x000000e0) >> 3)
131 
132 /*
133  * 6000 (jfb) / 8000 (ifb) engine command
134  * This register is used to issue (some) commands sequences to the
135  * acceleration hardware.
136  */
137 #define JFB_REG_ENGINE			0x6000
138 #define IFB_REG_ENGINE			0x8000
139 
140 /*
141  * 8040 component configuration
142  * This register controls which parts of the board will be addressed by
143  * writes to other configuration registers.
144  * Apparently the low two bytes control the frame buffer windows for the
145  * given head (starting at 1).
146  * The high two bytes are texture related.
147  */
148 #define	IFB_REG_COMPONENT_SELECT	0x8040
149 
150 /*
151  * 8044 status
152  * This register has a bit that signals completion of commands issued
153  * to the acceleration hardware.
154  */
155 #define IFB_REG_STATUS			0x8044
156 #define IFB_REG_STATUS_DONE			0x00000004
157 
158 /*
159  * 8058 magnifying configuration
160  * This register apparently controls magnifying.
161  * bits 5-6 select the window width divider (00: by 2, 01: by 4, 10: by 8,
162  *   11: by 16)
163  * bits 7-8 select the zoom factor (00: disabled, 01: x2, 10: x4, 11: x8)
164  */
165 #define	IFB_REG_MAGNIFY			0x8058
166 #define	IFB_REG_MAGNIFY_DISABLE			0x00000000
167 #define	IFB_REG_MAGNIFY_X2			0x00000040
168 #define	IFB_REG_MAGNIFY_X4			0x00000080
169 #define	IFB_REG_MAGNIFY_X8			0x000000c0
170 #define	IFB_REG_MAGNIFY_WINDIV2			0x00000000
171 #define	IFB_REG_MAGNIFY_WINDIV4			0x00000010
172 #define	IFB_REG_MAGNIFY_WINDIV8			0x00000020
173 #define	IFB_REG_MAGNIFY_WINDIV16		0x00000030
174 
175 /*
176  * 8070 display resolution
177  * Contains the size of the display, as ((height - 1) << 16) | (width - 1)
178  */
179 #define	IFB_REG_RESOLUTION		0x8070
180 /*
181  * 8074 configuration register
182  * Contains 0x1a000088 | ((Log2 stride) << 16)
183  */
184 #define	IFB_REG_CONFIG			0x8074
185 /*
186  * 8078 32bit frame buffer window #0 (8 to 9 MB)
187  * Contains the offset (relative to BAR0) of the 32 bit frame buffer window.
188  */
189 #define	IFB_REG_FB32_0			0x8078
190 /*
191  * 807c 32bit frame buffer window #1 (8 to 9 MB)
192  * Contains the offset (relative to BAR0) of the 32 bit frame buffer window.
193  */
194 #define	IFB_REG_FB32_1			0x807c
195 /*
196  * 8080 8bit frame buffer window #0 (2 to 2.2 MB)
197  * Contains the offset (relative to BAR0) of the 8 bit frame buffer window.
198  */
199 #define	IFB_REG_FB8_0			0x8080
200 /*
201  * 8084 8bit frame buffer window #1 (2 to 2.2 MB)
202  * Contains the offset (relative to BAR0) of the 8 bit frame buffer window.
203  */
204 #define	IFB_REG_FB8_1			0x8084
205 /*
206  * 8088 unknown window (as large as a 32 bit frame buffer)
207  */
208 #define	IFB_REG_FB_UNK0			0x8088
209 /*
210  * 808c unknown window (as large as a 8 bit frame buffer)
211  */
212 #define	IFB_REG_FB_UNK1			0x808c
213 /*
214  * 8090 unknown window (as large as a 8 bit frame buffer)
215  */
216 #define	IFB_REG_FB_UNK2			0x8090
217 
218 /*
219  * 80bc RAMDAC palette index register
220  */
221 #define	IFB_REG_CMAP_INDEX		0x80bc
222 /*
223  * 80c0 RAMDAC palette data register
224  */
225 #define	IFB_REG_CMAP_DATA		0x80c0
226 
227 /*
228  * 80e4 DPMS state register
229  * States ``off'' and ``suspend'' need chip reprogramming before video can
230  * be enabled again.
231  */
232 #define	IFB_REG_DPMS_STATE		0x80e4
233 #define	IFB_REG_DPMS_OFF			0x00000000
234 #define	IFB_REG_DPMS_SUSPEND			0x00000001
235 #define	IFB_REG_DPMS_STANDBY			0x00000002
236 #define	IFB_REG_DPMS_ON				0x00000003
237 
238 /*
239  * (some) ROP codes
240  */
241 
242 #define	IFB_ROP_CLEAR	0x00000000	/* clear bits in rop mask */
243 #define	IFB_ROP_SRC	0x00330000	/* copy src bits matching rop mask */
244 #define	IFB_ROP_XOR	0x00cc0000	/* xor src bits with rop mask */
245 #define	IFB_ROP_SET	0x00ff0000	/* set bits in rop mask */
246 
247 #define IFB_COORDS(x, y)	((x) | (y) << 16)
248 
249 /* blitter directions */
250 #define IFB_BLT_DIR_BACKWARDS_Y		(0x08 | 0x02)
251 #define IFB_BLT_DIR_BACKWARDS_X		(0x04 | 0x01)
252 
253 #define	IFB_PIXELMASK	0x7f	/* 7bpp */
254 
255 struct ifb_softc {
256 	struct sunfb sc_sunfb;
257 
258 	bus_space_tag_t sc_mem_t;
259 	pcitag_t sc_pcitag;
260 
261 	/* overlays mappings */
262 	bus_space_handle_t sc_mem_h;
263 	bus_addr_t sc_membase, sc_fb8bank0_base, sc_fb8bank1_base;
264 	bus_size_t sc_memlen;
265 	vaddr_t	sc_memvaddr, sc_fb8bank0_vaddr, sc_fb8bank1_vaddr;
266 
267 	/* registers mapping */
268 	bus_space_handle_t sc_reg_h;
269 	bus_addr_t sc_regbase;
270 	bus_size_t sc_reglen;
271 
272 	/* communication area */
273 	volatile uint32_t *sc_comm;
274 
275 	/* acceleration information */
276 	u_int	sc_acceltype;
277 #define	IFB_ACCEL_NONE			0
278 #define	IFB_ACCEL_IFB			1	/* Expert3D style */
279 #define	IFB_ACCEL_JFB			2	/* XVR-500 style */
280 	void (*sc_rop)(void *, int, int, int, int, int, int, uint32_t, int32_t);
281 
282 	/* wsdisplay related goo */
283 	u_int	sc_mode;
284 	struct wsdisplay_emulops sc_old_ops;
285 	u_int8_t sc_cmap_red[256];
286 	u_int8_t sc_cmap_green[256];
287 	u_int8_t sc_cmap_blue[256];
288 };
289 
290 int	ifb_ioctl(void *, u_long, caddr_t, int, struct proc *);
291 paddr_t	ifb_mmap(void *, off_t, int);
292 void	ifb_burner(void *, u_int, u_int);
293 
294 struct wsdisplay_accessops ifb_accessops = {
295 	ifb_ioctl,
296 	ifb_mmap,
297 	NULL,	/* alloc_screen */
298 	NULL,	/* free_screen */
299 	NULL,	/* show_screen */
300 	NULL,	/* load_font */
301 	NULL,	/* scrollback */
302 	NULL,	/* getchar */
303 	ifb_burner,
304 	NULL	/* pollc */
305 };
306 
307 int	ifbmatch(struct device *, void *, void *);
308 void	ifbattach(struct device *, struct device *, void *);
309 
310 struct cfattach ifb_ca = {
311 	sizeof (struct ifb_softc), ifbmatch, ifbattach
312 };
313 
314 struct cfdriver ifb_cd = {
315 	NULL, "ifb", DV_DULL
316 };
317 
318 int	ifb_accel_identify(const char *);
319 static inline
320 u_int	ifb_dac_value(u_int, u_int, u_int);
321 int	ifb_getcmap(struct ifb_softc *, struct wsdisplay_cmap *);
322 static inline
323 int	ifb_is_console(int);
324 int	ifb_mapregs(struct ifb_softc *, struct pci_attach_args *);
325 int	ifb_putcmap(struct ifb_softc *, struct wsdisplay_cmap *);
326 void	ifb_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
327 void	ifb_setcolormap(struct sunfb *,
328 	    void (*)(void *, u_int, u_int8_t, u_int8_t, u_int8_t));
329 
330 void	ifb_copyrect(struct ifb_softc *, int, int, int, int, int, int);
331 void	ifb_fillrect(struct ifb_softc *, int, int, int, int, int);
332 static inline
333 void	ifb_rop(struct ifb_softc *, int, int, int, int, int, int, uint32_t,
334 	    int32_t);
335 void	ifb_rop_common(struct ifb_softc *, bus_addr_t, int, int, int, int,
336 	    int, int, uint32_t, int32_t);
337 void	ifb_rop_ifb(void *, int, int, int, int, int, int, uint32_t, int32_t);
338 void	ifb_rop_jfb(void *, int, int, int, int, int, int, uint32_t, int32_t);
339 int	ifb_rop_wait(struct ifb_softc *);
340 
341 int	ifb_putchar_dumb(void *, int, int, u_int, long);
342 int	ifb_copycols_dumb(void *, int, int, int, int);
343 int	ifb_erasecols_dumb(void *, int, int, int, long);
344 int	ifb_copyrows_dumb(void *, int, int, int);
345 int	ifb_eraserows_dumb(void *, int, int, long);
346 int	ifb_do_cursor_dumb(struct rasops_info *);
347 
348 int	ifb_putchar(void *, int, int, u_int, long);
349 int	ifb_copycols(void *, int, int, int, int);
350 int	ifb_erasecols(void *, int, int, int, long);
351 int	ifb_copyrows(void *, int, int, int);
352 int	ifb_eraserows(void *, int, int, long);
353 int	ifb_do_cursor(struct rasops_info *);
354 
355 int
356 ifbmatch(struct device *parent, void *cf, void *aux)
357 {
358 	return ifb_ident(aux);
359 }
360 
361 void
362 ifbattach(struct device *parent, struct device *self, void *aux)
363 {
364 	struct ifb_softc *sc = (struct ifb_softc *)self;
365 	struct pci_attach_args *paa = aux;
366 	struct rasops_info *ri;
367 	uint32_t dev_comm;
368 	int node, console;
369 	char *name, *text;
370 	char namebuf[32];
371 
372 	sc->sc_mem_t = paa->pa_memt;
373 	sc->sc_pcitag = paa->pa_tag;
374 
375 	node = PCITAG_NODE(paa->pa_tag);
376 	console = ifb_is_console(node);
377 
378 	printf("\n");
379 
380 	/*
381 	 * Multiple heads appear as PCI subfunctions.
382 	 * However, the ofw node for it lacks most properties,
383 	 * and its BAR only give access to registers, not
384 	 * frame buffer memory.
385 	 */
386 	if (!node_has_property(node, "device_type")) {
387 		printf("%s: secondary output not supported yet\n",
388 		    self->dv_xname);
389 		return;
390 	}
391 
392 	/*
393 	 * Describe the beast.
394 	 */
395 
396 	name = text = getpropstringA(node, "name", namebuf);
397 	if (strncmp(text, "SUNW,", 5) == 0)
398 		text += 5;
399 	printf("%s: %s", self->dv_xname, text);
400 	text = getpropstring(node, "model");
401 	if (*text != '\0')
402 		printf(" (%s)", text);
403 
404 	if (ifb_mapregs(sc, paa))
405 		return;
406 
407 	sc->sc_fb8bank0_base = bus_space_read_4(sc->sc_mem_t, sc->sc_reg_h,
408 	      IFB_REG_FB8_0);
409 	sc->sc_fb8bank1_base = bus_space_read_4(sc->sc_mem_t, sc->sc_reg_h,
410 	      IFB_REG_FB8_1);
411 
412 	sc->sc_memvaddr = (vaddr_t)bus_space_vaddr(sc->sc_mem_t, sc->sc_mem_h);
413 	sc->sc_fb8bank0_vaddr = sc->sc_memvaddr +
414 	    sc->sc_fb8bank0_base - sc->sc_membase;
415 	sc->sc_fb8bank1_vaddr = sc->sc_memvaddr +
416 	    sc->sc_fb8bank1_base - sc->sc_membase;
417 
418 	/*
419 	 * The values stored into the node properties might have been
420 	 * modified since the Fcode was last run. Pick the geometry
421 	 * information from the configuration registers instead.
422 	 * This replaces
423 	fb_setsize(&sc->sc_sunfb, 8, 1152, 900, node, 0);
424 	 */
425 
426 	sc->sc_sunfb.sf_width = (bus_space_read_4(sc->sc_mem_t, sc->sc_reg_h,
427 	    IFB_REG_RESOLUTION) & 0xffff) + 1;
428 	sc->sc_sunfb.sf_height = (bus_space_read_4(sc->sc_mem_t, sc->sc_reg_h,
429 	    IFB_REG_RESOLUTION) >> 16) + 1;
430 	sc->sc_sunfb.sf_depth = 8;
431 	sc->sc_sunfb.sf_linebytes = 1 << (bus_space_read_4(sc->sc_mem_t,
432 	    sc->sc_reg_h, IFB_REG_CONFIG) >> 16);
433 	sc->sc_sunfb.sf_fbsize =
434 	    sc->sc_sunfb.sf_height * sc->sc_sunfb.sf_linebytes;
435 
436 	printf(", %dx%d\n", sc->sc_sunfb.sf_width, sc->sc_sunfb.sf_height);
437 
438 	ri = &sc->sc_sunfb.sf_ro;
439 	ri->ri_bits = NULL;
440 	ri->ri_hw = sc;
441 
442 	fbwscons_init(&sc->sc_sunfb, RI_BSWAP, console);
443 
444 	/*
445 	 * Find out what flavour of ifb we are...
446 	 */
447 
448 	sc->sc_acceltype = ifb_accel_identify(name);
449 
450 	switch (sc->sc_acceltype) {
451 	case IFB_ACCEL_IFB:
452 		sc->sc_rop = ifb_rop_ifb;
453 		break;
454 	case IFB_ACCEL_JFB:
455 		/*
456 		 * Remember the address of the communication area
457 		 */
458 		if (OF_getprop(node, "dev-comm", &dev_comm,
459 		    sizeof dev_comm) != -1) {
460 			sc->sc_comm = (volatile uint32_t *)(vaddr_t)dev_comm;
461 		}
462 		sc->sc_rop = ifb_rop_jfb;
463 		break;
464 	}
465 
466 	/*
467 	 * Clear the unwanted pixel planes: all if non console (thus
468 	 * white background), and all planes above 7bpp otherwise.
469 	 * This also allows to check whether the accelerated code works,
470 	 * or not.
471 	 */
472 
473 	if (sc->sc_acceltype != IFB_ACCEL_NONE) {
474 		ifb_rop(sc, 0, 0, 0, 0, sc->sc_sunfb.sf_width,
475 		    sc->sc_sunfb.sf_height, IFB_ROP_CLEAR,
476 		    console ? ~IFB_PIXELMASK : ~0);
477 		if (ifb_rop_wait(sc) == 0) {
478 			/* fall back to dumb software operation */
479 			sc->sc_acceltype = IFB_ACCEL_NONE;
480 		}
481 	}
482 
483 	if (sc->sc_acceltype == IFB_ACCEL_NONE) {
484 		/* due to the way we will handle updates */
485 		ri->ri_flg &= ~RI_FULLCLEAR;
486 
487 		if (!console) {
488 			bzero((void *)sc->sc_fb8bank0_vaddr,
489 			    sc->sc_sunfb.sf_fbsize);
490 			bzero((void *)sc->sc_fb8bank1_vaddr,
491 			    sc->sc_sunfb.sf_fbsize);
492 		}
493 	}
494 
495 	/* pick centering delta */
496 	sc->sc_fb8bank0_vaddr += ri->ri_bits - ri->ri_origbits;
497 	sc->sc_fb8bank1_vaddr += ri->ri_bits - ri->ri_origbits;
498 
499 	sc->sc_old_ops = ri->ri_ops;	/* structure copy */
500 
501 	if (sc->sc_acceltype != IFB_ACCEL_NONE) {
502 		ri->ri_ops.copyrows = ifb_copyrows;
503 		ri->ri_ops.copycols = ifb_copycols;
504 		ri->ri_ops.eraserows = ifb_eraserows;
505 		ri->ri_ops.erasecols = ifb_erasecols;
506 		ri->ri_ops.putchar = ifb_putchar_dumb;
507 		ri->ri_do_cursor = ifb_do_cursor;
508 	} else {
509 		ri->ri_ops.copyrows = ifb_copyrows_dumb;
510 		ri->ri_ops.copycols = ifb_copycols_dumb;
511 		ri->ri_ops.eraserows = ifb_eraserows_dumb;
512 		ri->ri_ops.erasecols = ifb_erasecols_dumb;
513 		ri->ri_ops.putchar = ifb_putchar_dumb;
514 		ri->ri_do_cursor = ifb_do_cursor_dumb;
515 	}
516 
517 	ifb_setcolormap(&sc->sc_sunfb, ifb_setcolor);
518 	sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
519 
520 	if (console)
521 		fbwscons_console_init(&sc->sc_sunfb, -1);
522 	fbwscons_attach(&sc->sc_sunfb, &ifb_accessops, console);
523 }
524 
525 /*
526  * Attempt to identify what kind of ifb we are talking to, so as to setup
527  * proper acceleration information.
528  */
529 int
530 ifb_accel_identify(const char *name)
531 {
532 	if (strcmp(name, "SUNW,Expert3D") == 0 ||
533 	    strcmp(name, "SUNW,Expert3D-Lite") == 0)
534 		return IFB_ACCEL_IFB;	/* ifblite */
535 
536 	if (strcmp(name, "SUNW,XVR-1200") == 0)
537 		return IFB_ACCEL_JFB;	/* jfb */
538 
539 	if (strcmp(name, "SUNW,XVR-600") == 0)
540 		return IFB_ACCEL_JFB;	/* xvr600 */
541 
542 	/* XVR-500 is bobcat */
543 
544 	return IFB_ACCEL_NONE;
545 }
546 
547 int
548 ifb_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
549 {
550 	struct ifb_softc *sc = v;
551 	struct wsdisplay_fbinfo *wdf;
552 	struct pcisel *sel;
553 	int mode;
554 
555 	switch (cmd) {
556 	case WSDISPLAYIO_GTYPE:
557 		*(u_int *)data = WSDISPLAY_TYPE_IFB;
558 		break;
559 
560 	case WSDISPLAYIO_SMODE:
561 		mode = *(u_int *)data;
562 		if (mode == WSDISPLAYIO_MODE_EMUL)
563 			ifb_setcolormap(&sc->sc_sunfb, ifb_setcolor);
564 		sc->sc_mode = mode;
565 		break;
566 	case WSDISPLAYIO_GINFO:
567 		wdf = (void *)data;
568 		wdf->height = sc->sc_sunfb.sf_height;
569 		wdf->width  = sc->sc_sunfb.sf_width;
570 		wdf->depth  = sc->sc_sunfb.sf_depth;
571 		wdf->cmsize = 256;
572 		break;
573 	case WSDISPLAYIO_LINEBYTES:
574 		*(u_int *)data = sc->sc_sunfb.sf_linebytes;
575 		break;
576 
577 	case WSDISPLAYIO_GETCMAP:
578 		return ifb_getcmap(sc, (struct wsdisplay_cmap *)data);
579 	case WSDISPLAYIO_PUTCMAP:
580 		return ifb_putcmap(sc, (struct wsdisplay_cmap *)data);
581 
582 	case WSDISPLAYIO_GPCIID:
583 		sel = (struct pcisel *)data;
584 		sel->pc_bus = PCITAG_BUS(sc->sc_pcitag);
585 		sel->pc_dev = PCITAG_DEV(sc->sc_pcitag);
586 		sel->pc_func = PCITAG_FUN(sc->sc_pcitag);
587 		break;
588 
589 	case WSDISPLAYIO_SVIDEO:
590 	case WSDISPLAYIO_GVIDEO:
591 		break;
592 
593 	case WSDISPLAYIO_GCURPOS:
594 	case WSDISPLAYIO_SCURPOS:
595 	case WSDISPLAYIO_GCURMAX:
596 	case WSDISPLAYIO_GCURSOR:
597 	case WSDISPLAYIO_SCURSOR:
598 	default:
599 		return -1; /* not supported yet */
600         }
601 
602 	return 0;
603 }
604 
605 static inline
606 u_int
607 ifb_dac_value(u_int r, u_int g, u_int b)
608 {
609 	/*
610 	 * Convert 8 bit values to 10 bit scale, by shifting and inserting
611 	 * the former high bits in the low two bits.
612 	 * Simply shifting is sligthly too dull.
613 	 */
614 	r = (r << 2) | (r >> 6);
615 	g = (g << 2) | (g >> 6);
616 	b = (b << 2) | (b >> 6);
617 
618 	return (b << 20) | (g << 10) | r;
619 }
620 
621 int
622 ifb_getcmap(struct ifb_softc *sc, struct wsdisplay_cmap *cm)
623 {
624 	u_int index = cm->index;
625 	u_int count = cm->count;
626 	int error;
627 
628 	if (index >= 256 || count > 256 - index)
629 		return EINVAL;
630 
631 	error = copyout(&sc->sc_cmap_red[index], cm->red, count);
632 	if (error)
633 		return error;
634 	error = copyout(&sc->sc_cmap_green[index], cm->green, count);
635 	if (error)
636 		return error;
637 	error = copyout(&sc->sc_cmap_blue[index], cm->blue, count);
638 	if (error)
639 		return error;
640 	return 0;
641 }
642 
643 int
644 ifb_putcmap(struct ifb_softc *sc, struct wsdisplay_cmap *cm)
645 {
646 	u_int index = cm->index;
647 	u_int count = cm->count;
648 	u_int i;
649 	int error;
650 	u_char *r, *g, *b;
651 
652 	if (index >= 256 || count > 256 - index)
653 		return EINVAL;
654 
655 	if ((error = copyin(cm->red, &sc->sc_cmap_red[index], count)) != 0)
656 		return error;
657 	if ((error = copyin(cm->green, &sc->sc_cmap_green[index], count)) != 0)
658 		return error;
659 	if ((error = copyin(cm->blue, &sc->sc_cmap_blue[index], count)) != 0)
660 		return error;
661 
662 	r = &sc->sc_cmap_red[index];
663 	g = &sc->sc_cmap_green[index];
664 	b = &sc->sc_cmap_blue[index];
665 
666 	for (i = 0; i < count; i++) {
667 		bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h,
668 		    IFB_REG_CMAP_INDEX, index);
669 		bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, IFB_REG_CMAP_DATA,
670 		    ifb_dac_value(*r, *g, *b));
671 		r++, g++, b++, index++;
672 	}
673 	return 0;
674 }
675 
676 void
677 ifb_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b)
678 {
679 	struct ifb_softc *sc = v;
680 
681 	sc->sc_cmap_red[index] = r;
682 	sc->sc_cmap_green[index] = g;
683 	sc->sc_cmap_blue[index] = b;
684 
685 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, IFB_REG_CMAP_INDEX,
686 	    index);
687 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, IFB_REG_CMAP_DATA,
688 	    ifb_dac_value(r, g, b));
689 }
690 
691 /* similar in spirit to fbwscons_setcolormap() */
692 void
693 ifb_setcolormap(struct sunfb *sf,
694     void (*setcolor)(void *, u_int, u_int8_t, u_int8_t, u_int8_t))
695 {
696 	struct rasops_info *ri = &sf->sf_ro;
697 	int i;
698 	const u_char *color;
699 
700 	/*
701 	 * Compensate for overlay plane limitations. Since we'll operate
702 	 * in 7bpp mode, our basic colors will use positions 00 to 0f,
703 	 * and the inverted colors will use positions 7f to 70.
704 	 */
705 
706 	for (i = 0x00; i < 0x10; i++) {
707 		color = &rasops_cmap[i * 3];
708 		setcolor(sf, i, color[0], color[1], color[2]);
709 	}
710 	for (i = 0x70; i < 0x80; i++) {
711 		color = &rasops_cmap[(0xf0 | i) * 3];
712 		setcolor(sf, i, color[0], color[1], color[2]);
713 	}
714 
715 	/*
716 	 * Proper operation apparently needs black to be 01, always.
717 	 * Replace black, red and white with white, black and red.
718 	 * Kind of ugly, but it works.
719 	 */
720 	ri->ri_devcmap[WSCOL_WHITE] = 0x00000000;
721 	ri->ri_devcmap[WSCOL_BLACK] = 0x01010101;
722 	ri->ri_devcmap[WSCOL_RED] = 0x07070707;
723 
724 	color = &rasops_cmap[(WSCOL_WHITE + 8) * 3];	/* real white */
725 	setcolor(sf, 0, color[0], color[1], color[2]);
726 	setcolor(sf, IFB_PIXELMASK ^ 0, ~color[0], ~color[1], ~color[2]);
727 	color = &rasops_cmap[WSCOL_BLACK * 3];
728 	setcolor(sf, 1, color[0], color[1], color[2]);
729 	setcolor(sf, IFB_PIXELMASK ^ 1, ~color[0], ~color[1], ~color[2]);
730 	color = &rasops_cmap[WSCOL_RED * 3];
731 	setcolor(sf, 7, color[0], color[1], color[2]);
732 	setcolor(sf, IFB_PIXELMASK ^ 7, ~color[0], ~color[1], ~color[2]);
733 }
734 
735 paddr_t
736 ifb_mmap(void *v, off_t off, int prot)
737 {
738 	struct ifb_softc *sc = (struct ifb_softc *)v;
739 
740 	switch (sc->sc_mode) {
741 	case WSDISPLAYIO_MODE_MAPPED:
742 		/*
743 		 * In mapped mode, provide access to the two overlays,
744 		 * followed by the control registers, at the following
745 		 * addresses:
746 		 * 00000000	overlay 0, size up to 2MB (visible fb size)
747 		 * 01000000	overlay 1, size up to 2MB (visible fb size)
748 		 * 02000000	control registers
749 		 */
750 		off -= 0x00000000;
751 		if (off >= 0 && off < round_page(sc->sc_sunfb.sf_fbsize)) {
752 			return bus_space_mmap(sc->sc_mem_t,
753 			    sc->sc_fb8bank0_base,
754 			    off, prot, BUS_SPACE_MAP_LINEAR);
755 		}
756 		off -= 0x01000000;
757 		if (off >= 0 && off < round_page(sc->sc_sunfb.sf_fbsize)) {
758 			return bus_space_mmap(sc->sc_mem_t,
759 			    sc->sc_fb8bank1_base,
760 			    off, prot, BUS_SPACE_MAP_LINEAR);
761 		}
762 #ifdef APERTURE
763 		off -= 0x01000000;
764 		if (allowaperture != 0 && sc->sc_acceltype != IFB_ACCEL_NONE) {
765 			if (off >= 0 && off < round_page(sc->sc_reglen)) {
766 				return bus_space_mmap(sc->sc_mem_t,
767 				    sc->sc_regbase,
768 				    off, prot, BUS_SPACE_MAP_LINEAR);
769 			}
770 		}
771 #endif
772 		break;
773 	}
774 
775 	return -1;
776 }
777 
778 void
779 ifb_burner(void *v, u_int on, u_int flags)
780 {
781 	struct ifb_softc *sc = (struct ifb_softc *)v;
782 	int s;
783 	uint32_t dpms;
784 
785 	s = splhigh();
786 	if (on)
787 		dpms = IFB_REG_DPMS_ON;
788 	else {
789 #ifdef notyet
790 		if (flags & WSDISPLAY_BURN_VBLANK)
791 			dpms = IFB_REG_DPMS_SUSPEND;
792 		else
793 #endif
794 			dpms = IFB_REG_DPMS_STANDBY;
795 	}
796 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, IFB_REG_DPMS_STATE, dpms);
797 	splx(s);
798 }
799 
800 static inline int
801 ifb_is_console(int node)
802 {
803 	extern int fbnode;
804 
805 	return fbnode == node;
806 }
807 
808 int
809 ifb_mapregs(struct ifb_softc *sc, struct pci_attach_args *pa)
810 {
811 	u_int32_t cf;
812 	int bar, rc;
813 
814 	cf = pci_conf_read(pa->pa_pc, pa->pa_tag, IFB_PCI_CFG);
815 	bar = PCI_MAPREG_START + IFB_PCI_CFG_BAR_OFFSET(cf);
816 
817 	cf = pci_conf_read(pa->pa_pc, pa->pa_tag, bar);
818 	if (PCI_MAPREG_TYPE(cf) == PCI_MAPREG_TYPE_IO)
819 		rc = EINVAL;
820 	else {
821 		rc = pci_mapreg_map(pa, bar, cf,
822 		    BUS_SPACE_MAP_LINEAR, NULL, &sc->sc_mem_h,
823 		    &sc->sc_membase, &sc->sc_memlen, 0);
824 	}
825 	if (rc != 0) {
826 		printf("\n%s: can't map video memory\n",
827 		    sc->sc_sunfb.sf_dev.dv_xname);
828 		return rc;
829 	}
830 
831 	cf = pci_conf_read(pa->pa_pc, pa->pa_tag, bar + 4);
832 	if (PCI_MAPREG_TYPE(cf) == PCI_MAPREG_TYPE_IO)
833 		rc = EINVAL;
834 	else {
835 		rc = pci_mapreg_map(pa, bar + 4, cf,
836 		    0, NULL, &sc->sc_reg_h,
837 		     &sc->sc_regbase, &sc->sc_reglen, 0x9000);
838 	}
839 	if (rc != 0) {
840 		printf("\n%s: can't map register space\n",
841 		    sc->sc_sunfb.sf_dev.dv_xname);
842 		return rc;
843 	}
844 
845 	return 0;
846 }
847 
848 /*
849  * Non accelerated routines.
850  */
851 
852 int
853 ifb_putchar_dumb(void *cookie, int row, int col, u_int uc, long attr)
854 {
855 	struct rasops_info *ri = cookie;
856 	struct ifb_softc *sc = ri->ri_hw;
857 
858 	ri->ri_bits = (void *)sc->sc_fb8bank0_vaddr;
859 	sc->sc_old_ops.putchar(cookie, row, col, uc, attr);
860 	ri->ri_bits = (void *)sc->sc_fb8bank1_vaddr;
861 	sc->sc_old_ops.putchar(cookie, row, col, uc, attr);
862 
863 	return 0;
864 }
865 
866 int
867 ifb_copycols_dumb(void *cookie, int row, int src, int dst, int num)
868 {
869 	struct rasops_info *ri = cookie;
870 	struct ifb_softc *sc = ri->ri_hw;
871 
872 	ri->ri_bits = (void *)sc->sc_fb8bank0_vaddr;
873 	sc->sc_old_ops.copycols(cookie, row, src, dst, num);
874 	ri->ri_bits = (void *)sc->sc_fb8bank1_vaddr;
875 	sc->sc_old_ops.copycols(cookie, row, src, dst, num);
876 
877 	return 0;
878 }
879 
880 int
881 ifb_erasecols_dumb(void *cookie, int row, int col, int num, long attr)
882 {
883 	struct rasops_info *ri = cookie;
884 	struct ifb_softc *sc = ri->ri_hw;
885 
886 	ri->ri_bits = (void *)sc->sc_fb8bank0_vaddr;
887 	sc->sc_old_ops.erasecols(cookie, row, col, num, attr);
888 	ri->ri_bits = (void *)sc->sc_fb8bank1_vaddr;
889 	sc->sc_old_ops.erasecols(cookie, row, col, num, attr);
890 
891 	return 0;
892 }
893 
894 int
895 ifb_copyrows_dumb(void *cookie, int src, int dst, int num)
896 {
897 	struct rasops_info *ri = cookie;
898 	struct ifb_softc *sc = ri->ri_hw;
899 
900 	ri->ri_bits = (void *)sc->sc_fb8bank0_vaddr;
901 	sc->sc_old_ops.copyrows(cookie, src, dst, num);
902 	ri->ri_bits = (void *)sc->sc_fb8bank1_vaddr;
903 	sc->sc_old_ops.copyrows(cookie, src, dst, num);
904 
905 	return 0;
906 }
907 
908 int
909 ifb_eraserows_dumb(void *cookie, int row, int num, long attr)
910 {
911 	struct rasops_info *ri = cookie;
912 	struct ifb_softc *sc = ri->ri_hw;
913 
914 	ri->ri_bits = (void *)sc->sc_fb8bank0_vaddr;
915 	sc->sc_old_ops.eraserows(cookie, row, num, attr);
916 	ri->ri_bits = (void *)sc->sc_fb8bank1_vaddr;
917 	sc->sc_old_ops.eraserows(cookie, row, num, attr);
918 
919 	return 0;
920 }
921 
922 /* Similar to rasops_do_cursor(), but using a 7bit pixel mask. */
923 
924 #define	CURSOR_MASK	0x7f7f7f7f
925 
926 int
927 ifb_do_cursor_dumb(struct rasops_info *ri)
928 {
929 	struct ifb_softc *sc = ri->ri_hw;
930 	int full1, height, cnt, slop1, slop2, row, col;
931 	int ovl_offset = sc->sc_fb8bank1_vaddr - sc->sc_fb8bank0_vaddr;
932 	u_char *dp0, *dp1, *rp;
933 
934 	row = ri->ri_crow;
935 	col = ri->ri_ccol;
936 
937 	ri->ri_bits = (void *)sc->sc_fb8bank0_vaddr;
938 	rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale;
939 	height = ri->ri_font->fontheight;
940 	slop1 = (4 - ((long)rp & 3)) & 3;
941 
942 	if (slop1 > ri->ri_xscale)
943 		slop1 = ri->ri_xscale;
944 
945 	slop2 = (ri->ri_xscale - slop1) & 3;
946 	full1 = (ri->ri_xscale - slop1 - slop2) >> 2;
947 
948 	if ((slop1 | slop2) == 0) {
949 		/* A common case */
950 		while (height--) {
951 			dp0 = rp;
952 			dp1 = dp0 + ovl_offset;
953 			rp += ri->ri_stride;
954 
955 			for (cnt = full1; cnt; cnt--) {
956 				*(int32_t *)dp0 ^= CURSOR_MASK;
957 				*(int32_t *)dp1 ^= CURSOR_MASK;
958 				dp0 += 4;
959 				dp1 += 4;
960 			}
961 		}
962 	} else {
963 		/* XXX this is stupid.. use masks instead */
964 		while (height--) {
965 			dp0 = rp;
966 			dp1 = dp0 + ovl_offset;
967 			rp += ri->ri_stride;
968 
969 			if (slop1 & 1) {
970 				*dp0++ ^= (u_char)CURSOR_MASK;
971 				*dp1++ ^= (u_char)CURSOR_MASK;
972 			}
973 
974 			if (slop1 & 2) {
975 				*(int16_t *)dp0 ^= (int16_t)CURSOR_MASK;
976 				*(int16_t *)dp1 ^= (int16_t)CURSOR_MASK;
977 				dp0 += 2;
978 				dp1 += 2;
979 			}
980 
981 			for (cnt = full1; cnt; cnt--) {
982 				*(int32_t *)dp0 ^= CURSOR_MASK;
983 				*(int32_t *)dp1 ^= CURSOR_MASK;
984 				dp0 += 4;
985 				dp1 += 4;
986 			}
987 
988 			if (slop2 & 1) {
989 				*dp0++ ^= (u_char)CURSOR_MASK;
990 				*dp1++ ^= (u_char)CURSOR_MASK;
991 			}
992 
993 			if (slop2 & 2) {
994 				*(int16_t *)dp0 ^= (int16_t)CURSOR_MASK;
995 				*(int16_t *)dp1 ^= (int16_t)CURSOR_MASK;
996 			}
997 		}
998 	}
999 
1000 	return 0;
1001 }
1002 
1003 /*
1004  * Accelerated routines.
1005  */
1006 
1007 int
1008 ifb_copycols(void *cookie, int row, int src, int dst, int num)
1009 {
1010 	struct rasops_info *ri = cookie;
1011 	struct ifb_softc *sc = ri->ri_hw;
1012 
1013 	num *= ri->ri_font->fontwidth;
1014 	src *= ri->ri_font->fontwidth;
1015 	dst *= ri->ri_font->fontwidth;
1016 	row *= ri->ri_font->fontheight;
1017 
1018 	ifb_copyrect(sc, ri->ri_xorigin + src, ri->ri_yorigin + row,
1019 	    ri->ri_xorigin + dst, ri->ri_yorigin + row,
1020 	    num, ri->ri_font->fontheight);
1021 
1022 	return 0;
1023 }
1024 
1025 int
1026 ifb_erasecols(void *cookie, int row, int col, int num, long attr)
1027 {
1028 	struct rasops_info *ri = cookie;
1029 	struct ifb_softc *sc = ri->ri_hw;
1030 	int bg, fg;
1031 
1032 	ri->ri_ops.unpack_attr(cookie, attr, &fg, &bg, NULL);
1033 
1034 	row *= ri->ri_font->fontheight;
1035 	col *= ri->ri_font->fontwidth;
1036 	num *= ri->ri_font->fontwidth;
1037 
1038 	ifb_fillrect(sc, ri->ri_xorigin + col, ri->ri_yorigin + row,
1039 	    num, ri->ri_font->fontheight, ri->ri_devcmap[bg]);
1040 
1041 	return 0;
1042 }
1043 
1044 int
1045 ifb_copyrows(void *cookie, int src, int dst, int num)
1046 {
1047 	struct rasops_info *ri = cookie;
1048 	struct ifb_softc *sc = ri->ri_hw;
1049 
1050 	num *= ri->ri_font->fontheight;
1051 	src *= ri->ri_font->fontheight;
1052 	dst *= ri->ri_font->fontheight;
1053 
1054 	ifb_copyrect(sc, ri->ri_xorigin, ri->ri_yorigin + src,
1055 	    ri->ri_xorigin, ri->ri_yorigin + dst, ri->ri_emuwidth, num);
1056 
1057 	return 0;
1058 }
1059 
1060 int
1061 ifb_eraserows(void *cookie, int row, int num, long attr)
1062 {
1063 	struct rasops_info *ri = cookie;
1064 	struct ifb_softc *sc = ri->ri_hw;
1065 	int bg, fg;
1066 	int x, y, w;
1067 
1068 	ri->ri_ops.unpack_attr(cookie, attr, &fg, &bg, NULL);
1069 
1070 	if ((num == ri->ri_rows) && ISSET(ri->ri_flg, RI_FULLCLEAR)) {
1071 		num = ri->ri_height;
1072 		x = y = 0;
1073 		w = ri->ri_width;
1074 	} else {
1075 		num *= ri->ri_font->fontheight;
1076 		x = ri->ri_xorigin;
1077 		y = ri->ri_yorigin + row * ri->ri_font->fontheight;
1078 		w = ri->ri_emuwidth;
1079 	}
1080 	ifb_fillrect(sc, x, y, w, num, ri->ri_devcmap[bg]);
1081 
1082 	return 0;
1083 }
1084 
1085 void
1086 ifb_copyrect(struct ifb_softc *sc, int sx, int sy, int dx, int dy, int w, int h)
1087 {
1088 	ifb_rop(sc, sx, sy, dx, dy, w, h, IFB_ROP_SRC, IFB_PIXELMASK);
1089 	ifb_rop_wait(sc);
1090 }
1091 
1092 void
1093 ifb_fillrect(struct ifb_softc *sc, int x, int y, int w, int h, int bg)
1094 {
1095 	int32_t mask;
1096 
1097 	/* pixels to set... */
1098 	mask = IFB_PIXELMASK & bg;
1099 	if (mask != 0) {
1100 		ifb_rop(sc, x, y, x, y, w, h, IFB_ROP_SET, mask);
1101 		ifb_rop_wait(sc);
1102 	}
1103 
1104 	/* pixels to clear... */
1105 	mask = IFB_PIXELMASK & ~bg;
1106 	if (mask != 0) {
1107 		ifb_rop(sc, x, y, x, y, w, h, IFB_ROP_CLEAR, mask);
1108 		ifb_rop_wait(sc);
1109 	}
1110 }
1111 
1112 /*
1113  * Perform a raster operation on both overlay planes.
1114  * Puzzled by all the magic numbers in there? So are we. Isn't a dire
1115  * lack of documentation wonderful?
1116  */
1117 
1118 static inline void
1119 ifb_rop(struct ifb_softc *sc, int sx, int sy, int dx, int dy, int w, int h,
1120     uint32_t rop, int32_t planemask)
1121 {
1122 	(*sc->sc_rop)(sc, sx, sy, dx, dy, w, h, rop, planemask);
1123 }
1124 
1125 void
1126 ifb_rop_common(struct ifb_softc *sc, bus_addr_t reg, int sx, int sy,
1127     int dx, int dy, int w, int h, uint32_t rop, int32_t planemask)
1128 {
1129 	int dir = 0;
1130 
1131 	/*
1132 	 * Compute rop direction. This only really matters for
1133 	 * screen-to-screen copies.
1134 	 */
1135 	if (sy < dy /* && sy + h > dy */) {
1136 		sy += h - 1;
1137 		dy += h;
1138 		dir |= IFB_BLT_DIR_BACKWARDS_Y;
1139 	}
1140 	if (sx < dx /* && sx + w > dx */) {
1141 		sx += w - 1;
1142 		dx += w;
1143 		dir |= IFB_BLT_DIR_BACKWARDS_X;
1144 	}
1145 
1146 	/* Which one of those below is your magic number for today? */
1147 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0x61000001);
1148 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0);
1149 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0x6301c080);
1150 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0x80000000);
1151 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, rop);
1152 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, planemask);
1153 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0);
1154 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0x64000303);
1155 	/*
1156 	 * This value is a pixel offset within the destination area. It is
1157 	 * probably used to define complex polygon shapes, with the
1158 	 * last pixel in the list being back to (0,0).
1159 	 */
1160 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, IFB_COORDS(0, 0));
1161 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0);
1162 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0x00030000);
1163 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0x2200010d);
1164 
1165 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0x33f01000 | dir);
1166 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, IFB_COORDS(dx, dy));
1167 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, IFB_COORDS(w, h));
1168 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, IFB_COORDS(sx, sy));
1169 }
1170 
1171 void
1172 ifb_rop_ifb(void *v, int sx, int sy, int dx, int dy, int w, int h,
1173     uint32_t rop, int32_t planemask)
1174 {
1175 	struct ifb_softc *sc = (struct ifb_softc *)v;
1176 	bus_addr_t reg = IFB_REG_ENGINE;
1177 
1178 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 2);
1179 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 1);
1180 	/* the ``0101'' part is probably a component selection */
1181 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0x540101ff);
1182 
1183 	ifb_rop_common(sc, reg, sx, sy, dx, dy, w, h, rop, planemask);
1184 }
1185 
1186 void
1187 ifb_rop_jfb(void *v, int sx, int sy, int dx, int dy, int w, int h,
1188     uint32_t rop, int32_t planemask)
1189 {
1190 	struct ifb_softc *sc = (struct ifb_softc *)v;
1191 	bus_addr_t reg = JFB_REG_ENGINE;
1192 	uint32_t spr, splr;
1193 
1194 	/*
1195 	 * Pick the current spr and splr values from the communication
1196 	 * area if possible.
1197 	 */
1198 	if (sc->sc_comm != NULL) {
1199 		spr = sc->sc_comm[IFB_SHARED_TERM8_SPR >> 2];
1200 		splr = sc->sc_comm[IFB_SHARED_TERM8_SPLR >> 2];
1201 	} else {
1202 		/* supposedly sane defaults */
1203 		spr = 0x54ff0303;
1204 		splr = 0x5c0000ff;
1205 	}
1206 
1207 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0x00400016);
1208 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0x5b000002);
1209 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0x5a000000);
1210 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, spr);
1211 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, splr);
1212 
1213 	ifb_rop_common(sc, reg, sx, sy, dx, dy, w, h, rop, planemask);
1214 
1215 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0x5a000001);
1216 	bus_space_write_4(sc->sc_mem_t, sc->sc_reg_h, reg, 0x5b000001);
1217 }
1218 
1219 int
1220 ifb_rop_wait(struct ifb_softc *sc)
1221 {
1222 	int i;
1223 
1224 	for (i = 1000000; i != 0; i--) {
1225 		if (bus_space_read_4(sc->sc_mem_t, sc->sc_reg_h,
1226 		    IFB_REG_STATUS) & IFB_REG_STATUS_DONE)
1227 			break;
1228 		DELAY(1);
1229 	}
1230 
1231 	return i;
1232 }
1233 
1234 int
1235 ifb_do_cursor(struct rasops_info *ri)
1236 {
1237 	struct ifb_softc *sc = ri->ri_hw;
1238 	int y, x;
1239 
1240 	y = ri->ri_yorigin + ri->ri_crow * ri->ri_font->fontheight;
1241 	x = ri->ri_xorigin + ri->ri_ccol * ri->ri_font->fontwidth;
1242 
1243 	ifb_rop(sc, x, y, x, y, ri->ri_font->fontwidth, ri->ri_font->fontheight,
1244 	    IFB_ROP_XOR, IFB_PIXELMASK);
1245 	ifb_rop_wait(sc);
1246 
1247 	return 0;
1248 }
1249