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grf.c revision 1.37.2.2 
      1 /*	$NetBSD: grf.c,v 1.37.2.2 2001/10/10 11:55:50 fvdl Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988 University of Utah.
      5  * Copyright (c) 1990 The Regents of the University of California.
      6  * All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * the Systems Programming Group of the University of Utah Computer
     10  * Science Department.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. All advertising materials mentioning features or use of this software
     21  *    must display the following acknowledgement:
     22  *	This product includes software developed by the University of
     23  *	California, Berkeley and its contributors.
     24  * 4. Neither the name of the University nor the names of its contributors
     25  *    may be used to endorse or promote products derived from this software
     26  *    without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38  * SUCH DAMAGE.
     39  *
     40  * from: Utah $Hdr: grf.c 1.31 91/01/21$
     41  *
     42  *	@(#)grf.c	7.8 (Berkeley) 5/7/91
     43  */
     44 
     45 /*
     46  * Graphics display driver for the Amiga
     47  * This is the hardware-independent portion of the driver.
     48  * Hardware access is through the grf_softc->g_mode routine.
     49  */
     50 
     51 #include <sys/param.h>
     52 #include <sys/proc.h>
     53 #include <sys/ioctl.h>
     54 #include <sys/device.h>
     55 #include <sys/file.h>
     56 #include <sys/malloc.h>
     57 #include <sys/systm.h>
     58 #include <sys/vnode.h>
     59 #include <sys/mman.h>
     60 #include <sys/poll.h>
     61 #include <uvm/uvm_extern.h>
     62 #include <machine/cpu.h>
     63 #include <dev/sun/fbio.h>
     64 #include <amiga/amiga/color.h>	/* DEBUG */
     65 #include <amiga/amiga/device.h>
     66 #include <amiga/dev/grfioctl.h>
     67 #include <amiga/dev/grfvar.h>
     68 #include <amiga/dev/itevar.h>
     69 #include <amiga/dev/viewioctl.h>
     70 
     71 #include <sys/conf.h>
     72 #include <machine/conf.h>
     73 
     74 #include "view.h"
     75 #include "grf.h"
     76 
     77 #if NGRF > 0
     78 #include "ite.h"
     79 #if NITE == 0
     80 #define	ite_on(u,f)
     81 #define	ite_off(u,f)
     82 #define ite_reinit(d)
     83 #endif
     84 
     85 int grfon __P((struct vnode *));
     86 int grfoff __P((struct vnode *));
     87 int grfsinfo __P((struct vnode *, struct grfdyninfo *));
     88 #ifdef BANKEDDEVPAGER
     89 int grfbanked_get __P((struct vnode *, off_t, int));
     90 int grfbanked_cur __P((struct vnode *));
     91 int grfbanked_set __P((struct vnode *, int));
     92 #endif
     93 
     94 void grfattach __P((struct device *, struct device *, void *));
     95 int grfmatch __P((struct device *, struct cfdata *, void *));
     96 int grfprint __P((void *, const char *));
     97 /*
     98  * pointers to grf drivers device structs
     99  */
    100 struct grf_softc *grfsp[NGRF];
    101 
    102 struct cfattach grf_ca = {
    103 	sizeof(struct device), grfmatch, grfattach
    104 };
    105 
    106 /*
    107  * only used in console init.
    108  */
    109 static struct cfdata *cfdata;
    110 
    111 /*
    112  * match if the unit of grf matches its perspective
    113  * low level board driver.
    114  */
    115 int
    116 grfmatch(pdp, cfp, auxp)
    117 	struct device *pdp;
    118 	struct cfdata *cfp;
    119 	void *auxp;
    120 {
    121 
    122 	if (cfp->cf_unit != ((struct grf_softc *)pdp)->g_unit)
    123 		return(0);
    124 	cfdata = cfp;
    125 	return(1);
    126 }
    127 
    128 /*
    129  * attach.. plug pointer in and print some info.
    130  * then try and attach an ite to us. note: dp is NULL
    131  * durring console init.
    132  */
    133 void
    134 grfattach(pdp, dp, auxp)
    135 	struct device *pdp, *dp;
    136 	void *auxp;
    137 {
    138 	struct grf_softc *gp;
    139 	int maj;
    140 
    141 	gp = (struct grf_softc *)pdp;
    142 	grfsp[gp->g_unit] = (struct grf_softc *)pdp;
    143 
    144 	/*
    145 	 * find our major device number
    146 	 */
    147 	for(maj = 0; maj < nchrdev; maj++)
    148 		if (cdevsw[maj].d_open == grfopen)
    149 			break;
    150 
    151 	gp->g_grfdev = makedev(maj, gp->g_unit);
    152 	if (dp != NULL) {
    153 		printf(": width %d height %d", gp->g_display.gd_dwidth,
    154 		    gp->g_display.gd_dheight);
    155 		if (gp->g_display.gd_colors == 2)
    156 			printf(" monochrome\n");
    157 		else
    158 			printf(" colors %d\n", gp->g_display.gd_colors);
    159 	}
    160 
    161 	/*
    162 	 * try and attach an ite
    163 	 */
    164 	amiga_config_found(cfdata, dp, gp, grfprint);
    165 }
    166 
    167 int
    168 grfprint(auxp, pnp)
    169 	void *auxp;
    170 	const char *pnp;
    171 {
    172 	if (pnp)
    173 		printf("ite at %s", pnp);
    174 	return(UNCONF);
    175 }
    176 
    177 /*ARGSUSED*/
    178 int
    179 grfopen(devvp, flags, devtype, p)
    180 	struct vnode *devvp;
    181 	int flags, devtype;
    182 	struct proc *p;
    183 {
    184 	struct grf_softc *gp;
    185 	dev_t dev;
    186 
    187 	dev = vdev_rdev(devvp);
    188 
    189 	if (GRFUNIT(dev) >= NGRF || (gp = grfsp[GRFUNIT(dev)]) == NULL)
    190 		return(ENXIO);
    191 
    192 	if ((gp->g_flags & GF_ALIVE) == 0)
    193 		return(ENXIO);
    194 
    195 	if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE))
    196 		return(EBUSY);
    197 
    198 	vdev_setprivdata(devvp, gp);
    199 
    200 	return(0);
    201 }
    202 
    203 /*ARGSUSED*/
    204 int
    205 grfclose(devvp, flags, mode, p)
    206 	struct vnode *devvp;
    207 	int flags;
    208 	int mode;
    209 	struct proc *p;
    210 {
    211 	struct grf_softc *gp;
    212 
    213 	gp = vdev_privdata(devvp);
    214 	(void)grfoff(devvp);
    215 	gp->g_flags &= GF_ALIVE;
    216 	return(0);
    217 }
    218 
    219 /*ARGSUSED*/
    220 int
    221 grfioctl(devvp, cmd, data, flag, p)
    222 	struct vnode *devvp;
    223 	u_long cmd;
    224 	caddr_t data;
    225 	int flag;
    226 	struct proc *p;
    227 {
    228 	struct grf_softc *gp;
    229 	int error;
    230 	dev_t dev;
    231 
    232 	gp = vdev_privdata(devvp);
    233 	dev = vdev_rdev(devvp);
    234 	error = 0;
    235 
    236 	switch (cmd) {
    237 	case OGRFIOCGINFO:
    238 	        /* argl.. no bank-member.. */
    239 	  	bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4);
    240 		break;
    241 	case GRFIOCGINFO:
    242 		bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo));
    243 		break;
    244 	case GRFIOCON:
    245 		error = grfon(devvp);
    246 		break;
    247 	case GRFIOCOFF:
    248 		error = grfoff(devvp);
    249 		break;
    250 	case GRFIOCSINFO:
    251 		error = grfsinfo(devvp, (struct grfdyninfo *) data);
    252 		break;
    253 	case GRFGETVMODE:
    254 		return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0));
    255 	case GRFSETVMODE:
    256 		error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0);
    257 		if (error == 0 && gp->g_itedev && !(gp->g_flags & GF_GRFON))
    258 			ite_reinit(gp->g_itedev);
    259 		break;
    260 	case GRFGETNUMVM:
    261 		return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0));
    262 	/*
    263 	 * these are all hardware dependant, and have to be resolved
    264 	 * in the respective driver.
    265 	 */
    266 	case GRFIOCPUTCMAP:
    267 	case GRFIOCGETCMAP:
    268 	case GRFIOCSSPRITEPOS:
    269 	case GRFIOCGSPRITEPOS:
    270 	case GRFIOCSSPRITEINF:
    271 	case GRFIOCGSPRITEINF:
    272 	case GRFIOCGSPRITEMAX:
    273 	case GRFIOCBITBLT:
    274     	case GRFIOCSETMON:
    275 	case GRFTOGGLE: /* Toggles between Cirrus boards and native ECS on
    276                      Amiga. 15/11/94 ill */
    277 		/*
    278 		 * We need the minor dev number to get the overlay/image
    279 		 * information for grf_ul.
    280 		 */
    281 		return(gp->g_mode(gp, GM_GRFIOCTL, data, cmd, dev));
    282 
    283 	case GRFIOCBLANK:	/* blank ioctl, IOCON/OFF will turn ite on */
    284 	case FBIOSVIDEO:
    285 		error = gp->g_mode(gp, GM_GRFIOCTL, data, GRFIOCBLANK, dev);
    286 		if (!error)
    287 			gp->g_blank = *(int *)data;
    288 		return (error);
    289 
    290 	case FBIOGVIDEO:
    291 		*(int *)data = gp->g_blank;
    292 		return (0);
    293 
    294 	default:
    295 #if NVIEW > 0
    296 		/*
    297 		 * check to see whether it's a command recognized by the
    298 		 * view code if the unit is 0
    299 		 * XXX
    300 		 */
    301 		if (GRFUNIT(dev) == 0)
    302 			return(viewioctl(devvp, cmd, data, flag, p));
    303 #endif
    304 		error = EINVAL;
    305 		break;
    306 
    307 	}
    308 	return(error);
    309 }
    310 
    311 /*ARGSUSED*/
    312 int
    313 grfpoll(devvp, events, p)
    314 	struct vnode *devvp;
    315 	int events;
    316 	struct proc *p;
    317 {
    318 	return(events & (POLLOUT | POLLWRNORM));
    319 }
    320 
    321 /*
    322  * map the contents of a graphics display card into process'
    323  * memory space.
    324  */
    325 paddr_t
    326 grfmmap(devvp, off, prot)
    327 	struct vnode *devvp;
    328 	off_t off;
    329 	int prot;
    330 {
    331 	struct grf_softc *gp;
    332 	struct grfinfo *gi;
    333 
    334 	gp = vdev_privdata(devvp);
    335 	gi = &gp->g_display;
    336 
    337 	/*
    338 	 * control registers
    339 	 */
    340 	if (off >= 0 && off < gi->gd_regsize)
    341 		return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT);
    342 
    343 	/*
    344 	 * frame buffer
    345 	 */
    346 	if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) {
    347 		off -= gi->gd_regsize;
    348 #ifdef BANKEDDEVPAGER
    349 		if (gi->gd_bank_size)
    350 			off %= gi->gd_bank_size;
    351 #endif
    352 		return(((paddr_t)gi->gd_fbaddr + off) >> PGSHIFT);
    353 	}
    354 	/* bogus */
    355 	return(-1);
    356 }
    357 
    358 int
    359 grfon(devvp)
    360 	struct vnode *devvp;
    361 {
    362 	struct grf_softc *gp;
    363 	dev_t dev;
    364 
    365 	gp = vdev_privdata(devvp);
    366 	dev = vdev_rdev(devvp);
    367 
    368 	if (gp->g_flags & GF_GRFON)
    369 		return(0);
    370 
    371 	gp->g_flags |= GF_GRFON;
    372 	if (gp->g_itedev != NODEV)
    373 		ite_off(gp->g_itedev, 3);
    374 
    375 	return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON,
    376 							NULL, 0, 0));
    377 }
    378 
    379 int
    380 grfoff(devvp)
    381 	struct vnode *devvp;
    382 {
    383 	struct grf_softc *gp;
    384 	int error;
    385 	dev_t dev;
    386 
    387 	gp = vdev_privdata(devvp);
    388 	dev = vdev_rdev(devvp);
    389 
    390 	if ((gp->g_flags & GF_GRFON) == 0)
    391 		return(0);
    392 
    393 	gp->g_flags &= ~GF_GRFON;
    394 	error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF,
    395 							NULL, 0, 0);
    396 
    397 	/*
    398 	 * Closely tied together no X's
    399 	 */
    400 	if (gp->g_itedev != NODEV)
    401 		ite_on(gp->g_itedev, 2);
    402 
    403 	return(error);
    404 }
    405 
    406 int
    407 grfsinfo(devvp, dyninfo)
    408 	struct vnode *devvp;
    409 	struct grfdyninfo *dyninfo;
    410 {
    411 	struct grf_softc *gp;
    412 	int error;
    413 
    414 	gp = vdev_privdata(devvp);
    415 	error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0);
    416 
    417 	/*
    418 	 * Closely tied together no X's
    419 	 */
    420 	if (gp->g_itedev != NODEV)
    421 		ite_reinit(gp->g_itedev);
    422 	return(error);
    423 }
    424 
    425 #ifdef BANKEDDEVPAGER
    426 
    427 int
    428 grfbanked_get (devvp, off, prot)
    429      struct vnode *devvp;
    430      off_t off;
    431      int   prot;
    432 {
    433 	struct grf_softc *gp;
    434 	struct grfinfo *gi;
    435 	int error, bank;
    436 
    437 	gp = vdev_privdata(devvp);
    438 	gi = &gp->g_display;
    439 
    440 	off -= gi->gd_regsize;
    441 	if (off < 0 || off >= gi->gd_fbsize)
    442 		return -1;
    443 
    444 	error = gp->g_mode(gp, GM_GRFGETBANK, &bank, off, prot);
    445 	return error ? -1 : bank;
    446 }
    447 
    448 int
    449 grfbanked_cur (devvp)
    450 	struct vnode *devvp;
    451 {
    452 	struct grf_softc *gp;
    453 	int error, bank;
    454 
    455 	gp = vdev_privdata(devvp);
    456 
    457 	error = gp->g_mode(gp, GM_GRFGETCURBANK, &bank, 0, 0);
    458 	return(error ? -1 : bank);
    459 }
    460 
    461 int
    462 grfbanked_set (devvp, bank)
    463 	struct vnode *devvp;
    464 	int bank;
    465 {
    466 	struct grf_softc *gp;
    467 
    468 	gp = vdev_privdata(devvp);
    469 	return(gp->g_mode(gp, GM_GRFSETBANK, &bank, 0, 0) ? -1 : 0);
    470 }
    471 
    472 #endif /* BANKEDDEVPAGER */
    473 #endif	/* NGRF > 0 */
    474