NetBSD/sys/arch/amiga/dev/grf.c

415 lines
10 KiB
C

/* $NetBSD: grf.c,v 1.48 2003/08/07 16:26:41 agc Exp $ */
/*
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Utah $Hdr: grf.c 1.31 91/01/21$
*
* @(#)grf.c 7.8 (Berkeley) 5/7/91
*/
/*
* Copyright (c) 1988 University of Utah.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Utah $Hdr: grf.c 1.31 91/01/21$
*
* @(#)grf.c 7.8 (Berkeley) 5/7/91
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: grf.c,v 1.48 2003/08/07 16:26:41 agc Exp $");
/*
* Graphics display driver for the Amiga
* This is the hardware-independent portion of the driver.
* Hardware access is through the grf_softc->g_mode routine.
*/
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/ioctl.h>
#include <sys/device.h>
#include <sys/file.h>
#include <sys/malloc.h>
#include <sys/systm.h>
#include <sys/vnode.h>
#include <sys/mman.h>
#include <uvm/uvm_extern.h>
#include <machine/cpu.h>
#include <dev/sun/fbio.h>
#include <amiga/amiga/color.h> /* DEBUG */
#include <amiga/amiga/device.h>
#include <amiga/dev/grfioctl.h>
#include <amiga/dev/grfvar.h>
#include <amiga/dev/itevar.h>
#include <amiga/dev/viewioctl.h>
#include <sys/conf.h>
#include "view.h"
#include "grf.h"
#if NGRF > 0
#include "ite.h"
#if NITE == 0
#define ite_on(u,f)
#define ite_off(u,f)
#define ite_reinit(d)
#endif
int grfon(dev_t);
int grfoff(dev_t);
int grfsinfo(dev_t, struct grfdyninfo *);
void grfattach(struct device *, struct device *, void *);
int grfmatch(struct device *, struct cfdata *, void *);
int grfprint(void *, const char *);
/*
* pointers to grf drivers device structs
*/
struct grf_softc *grfsp[NGRF];
CFATTACH_DECL(grf, sizeof(struct device),
grfmatch, grfattach, NULL, NULL);
dev_type_open(grfopen);
dev_type_close(grfclose);
dev_type_ioctl(grfioctl);
dev_type_mmap(grfmmap);
const struct cdevsw grf_cdevsw = {
grfopen, grfclose, nullread, nullwrite, grfioctl,
nostop, notty, nopoll, grfmmap, nokqfilter,
};
/*
* only used in console init.
*/
static struct cfdata *cfdata;
/*
* match if the unit of grf matches its perspective
* low level board driver.
*/
int
grfmatch(struct device *pdp, struct cfdata *cfp, void *auxp)
{
if (cfp->cf_unit != ((struct grf_softc *)pdp)->g_unit)
return(0);
cfdata = cfp;
return(1);
}
/*
* attach.. plug pointer in and print some info.
* then try and attach an ite to us. note: dp is NULL
* durring console init.
*/
void
grfattach(struct device *pdp, struct device *dp, void *auxp)
{
struct grf_softc *gp;
int maj;
gp = (struct grf_softc *)pdp;
grfsp[gp->g_unit] = (struct grf_softc *)pdp;
/*
* find our major device number
*/
maj = cdevsw_lookup_major(&grf_cdevsw);
gp->g_grfdev = makedev(maj, gp->g_unit);
if (dp != NULL) {
printf(": width %d height %d", gp->g_display.gd_dwidth,
gp->g_display.gd_dheight);
if (gp->g_display.gd_colors == 2)
printf(" monochrome\n");
else
printf(" colors %d\n", gp->g_display.gd_colors);
}
/*
* try and attach an ite
*/
amiga_config_found(cfdata, dp, gp, grfprint);
}
int
grfprint(void *auxp, const char *pnp)
{
if (pnp)
aprint_normal("ite at %s", pnp);
return(UNCONF);
}
/*ARGSUSED*/
int
grfopen(dev_t dev, int flags, int devtype, struct proc *p)
{
struct grf_softc *gp;
if (GRFUNIT(dev) >= NGRF || (gp = grfsp[GRFUNIT(dev)]) == NULL)
return(ENXIO);
if ((gp->g_flags & GF_ALIVE) == 0)
return(ENXIO);
if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE))
return(EBUSY);
return(0);
}
/*ARGSUSED*/
int
grfclose(dev_t dev, int flags, int mode, struct proc *p)
{
struct grf_softc *gp;
gp = grfsp[GRFUNIT(dev)];
(void)grfoff(dev);
gp->g_flags &= GF_ALIVE;
return(0);
}
/*ARGSUSED*/
int
grfioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
{
struct grf_softc *gp;
int error;
gp = grfsp[GRFUNIT(dev)];
error = 0;
switch (cmd) {
case OGRFIOCGINFO:
/* argl.. no bank-member.. */
bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4);
break;
case GRFIOCGINFO:
bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo));
break;
case GRFIOCON:
error = grfon(dev);
break;
case GRFIOCOFF:
error = grfoff(dev);
break;
case GRFIOCSINFO:
error = grfsinfo(dev, (struct grfdyninfo *) data);
break;
case GRFGETVMODE:
return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0));
case GRFSETVMODE:
error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0);
if (error == 0 && gp->g_itedev && !(gp->g_flags & GF_GRFON))
ite_reinit(gp->g_itedev);
break;
case GRFGETNUMVM:
return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0));
/*
* these are all hardware dependant, and have to be resolved
* in the respective driver.
*/
case GRFIOCPUTCMAP:
case GRFIOCGETCMAP:
case GRFIOCSSPRITEPOS:
case GRFIOCGSPRITEPOS:
case GRFIOCSSPRITEINF:
case GRFIOCGSPRITEINF:
case GRFIOCGSPRITEMAX:
case GRFIOCBITBLT:
case GRFIOCSETMON:
case GRFTOGGLE: /* Toggles between Cirrus boards and native ECS on
Amiga. 15/11/94 ill */
/*
* We need the minor dev number to get the overlay/image
* information for grf_ul.
*/
return(gp->g_mode(gp, GM_GRFIOCTL, data, cmd, dev));
case GRFIOCBLANK: /* blank ioctl, IOCON/OFF will turn ite on */
case FBIOSVIDEO:
error = gp->g_mode(gp, GM_GRFIOCTL, data, GRFIOCBLANK, dev);
if (!error)
gp->g_blank = *(int *)data;
return (error);
case FBIOGVIDEO:
*(int *)data = gp->g_blank;
return (0);
default:
#if NVIEW > 0
/*
* check to see whether it's a command recognized by the
* view code if the unit is 0
* XXX
*/
if (GRFUNIT(dev) == 0) {
extern const struct cdevsw view_cdevsw;
return((*view_cdevsw.d_ioctl)(dev, cmd, data, flag, p));
}
#endif
error = EPASSTHROUGH;
break;
}
return(error);
}
/*
* map the contents of a graphics display card into process'
* memory space.
*/
paddr_t
grfmmap(dev_t dev, off_t off, int prot)
{
struct grf_softc *gp;
struct grfinfo *gi;
gp = grfsp[GRFUNIT(dev)];
gi = &gp->g_display;
/*
* control registers
*/
if (off >= 0 && off < gi->gd_regsize)
return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT);
/*
* frame buffer
*/
if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) {
off -= gi->gd_regsize;
return(((paddr_t)gi->gd_fbaddr + off) >> PGSHIFT);
}
/* bogus */
return(-1);
}
int
grfon(dev_t dev)
{
struct grf_softc *gp;
gp = grfsp[GRFUNIT(dev)];
if (gp->g_flags & GF_GRFON)
return(0);
gp->g_flags |= GF_GRFON;
if (gp->g_itedev != NODEV)
ite_off(gp->g_itedev, 3);
return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON,
NULL, 0, 0));
}
int
grfoff(dev_t dev)
{
struct grf_softc *gp;
int error;
gp = grfsp[GRFUNIT(dev)];
if ((gp->g_flags & GF_GRFON) == 0)
return(0);
gp->g_flags &= ~GF_GRFON;
error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF,
NULL, 0, 0);
/*
* Closely tied together no X's
*/
if (gp->g_itedev != NODEV)
ite_on(gp->g_itedev, 2);
return(error);
}
int
grfsinfo(dev_t dev, struct grfdyninfo *dyninfo)
{
struct grf_softc *gp;
int error;
gp = grfsp[GRFUNIT(dev)];
error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0);
/*
* Closely tied together no X's
*/
if (gp->g_itedev != NODEV)
ite_reinit(gp->g_itedev);
return(error);
}
#endif /* NGRF > 0 */