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/* $OpenBSD: cgtwo.c,v 1.36 2006/12/03 16:40:06 miod Exp $ */
/* $NetBSD: cgtwo.c,v 1.22 1997/05/24 20:16:12 pk Exp $ */
/*
* Copyright (c) 2002 Miodrag Vallat. All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* 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, Lawrence Berkeley Laboratory.
*
* 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: @(#)cgthree.c 8.2 (Berkeley) 10/30/93
*/
/*
* color display (cgtwo) driver.
*
* Does not handle interrupts, even though they can occur.
*
* XXX should defer colormap updates to vertical retrace interrupts
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/malloc.h>
#include <sys/mman.h>
#include <sys/tty.h>
#include <sys/conf.h>
#include <uvm/uvm_extern.h>
#include <machine/autoconf.h>
#include <machine/pmap.h>
#if defined(SUN4)
#include <machine/eeprom.h>
#endif
#include <machine/conf.h>
#include <sparc/dev/cgtworeg.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/rasops/rasops.h>
#include <machine/fbvar.h>
/* per-display variables */
struct cgtwo_softc {
struct sunfb sc_sunfb; /* common base part */
struct rom_reg sc_phys; /* display RAM (phys addr) */
volatile struct cg2statusreg *sc_reg; /* CG2 control registers */
volatile u_short *sc_ppmask;
volatile u_short *sc_cmap;
#define sc_redmap(cmap) ((cmap))
#define sc_greenmap(cmap) ((cmap) + CG2_CMSIZE)
#define sc_bluemap(cmap) ((cmap) + 2 * CG2_CMSIZE)
};
void cgtwo_burner(void *, u_int, u_int);
int cgtwo_getcmap(struct cgtwo_softc *, struct wsdisplay_cmap *);
int cgtwo_ioctl(void *, u_long, caddr_t, int, struct proc *);
paddr_t cgtwo_mmap(void *, off_t, int);
int cgtwo_putcmap(struct cgtwo_softc *, struct wsdisplay_cmap *);
void cgtwo_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
struct wsdisplay_accessops cgtwo_accessops = {
cgtwo_ioctl,
cgtwo_mmap,
NULL, /* alloc_screen */
NULL, /* free_screen */
NULL, /* show_screen */
NULL, /* load_font */
NULL, /* scrollback */
NULL, /* getchar */
cgtwo_burner,
NULL /* pollc */
};
int cgtwomatch(struct device *, void *, void *);
void cgtwoattach(struct device *, struct device *, void *);
struct cfattach cgtwo_ca = {
sizeof(struct cgtwo_softc), cgtwomatch, cgtwoattach
};
struct cfdriver cgtwo_cd = {
NULL, "cgtwo", DV_DULL
};
int
cgtwomatch(struct device *parent, void *vcf, void *aux)
{
struct cfdata *cf = vcf;
struct confargs *ca = aux;
struct romaux *ra = &ca->ca_ra;
caddr_t tmp;
if (strcmp(cf->cf_driver->cd_name, ra->ra_name))
return (0);
if (!CPU_ISSUN4 || ca->ca_bustype != BUS_VME16)
return (0);
/* XXX - Must do our own mapping at CG2_CTLREG_OFF */
bus_untmp();
tmp = (caddr_t)mapdev(ra->ra_reg, TMPMAP_VA, CG2_CTLREG_OFF, NBPG);
if (probeget(tmp, 2) != -1)
return (1);
return (0);
}
void
cgtwoattach(struct device *parent, struct device *self, void *args)
{
struct cgtwo_softc *sc = (struct cgtwo_softc *)self;
struct confargs *ca = args;
int node = 0;
int isconsole = 0;
if (CPU_ISSUN4) {
struct eeprom *eep = (struct eeprom *)eeprom_va;
/*
* Assume this is the console if there's no eeprom info
* to be found.
*/
if (eep == NULL || eep->eeConsole == EE_CONS_COLOR)
isconsole = 1;
}
/*
* When the ROM has mapped in a cgtwo display, the address
* maps only the video RAM, so in any case we have to map the
* registers ourselves.
*/
sc->sc_phys = ca->ca_ra.ra_reg[0];
/* Apparently, the pixels are 32-bit data space */
sc->sc_phys.rr_iospace = PMAP_VME32;
sc->sc_reg = (volatile struct cg2statusreg *)
mapiodev(ca->ca_ra.ra_reg,
CG2_ROPMEM_OFF + offsetof(struct cg2fb, status.reg),
sizeof(struct cg2statusreg));
sc->sc_ppmask = (volatile u_short *)
mapiodev(ca->ca_ra.ra_reg,
CG2_ROPMEM_OFF + offsetof(struct cg2fb, ppmask.reg),
sizeof(u_short));
sc->sc_cmap = (volatile u_short *)
mapiodev(ca->ca_ra.ra_reg,
CG2_ROPMEM_OFF + offsetof(struct cg2fb, redmap),
3 * CG2_CMSIZE * sizeof(u_short));
/* enable video */
*sc->sc_ppmask = 0xffff; /* enable all color planes... */
cgtwo_burner(sc, 1, 0); /* ... and video signals */
fb_setsize(&sc->sc_sunfb, 8, 1152, 900, node, ca->ca_bustype);
sc->sc_sunfb.sf_ro.ri_bits = mapiodev(&sc->sc_phys, CG2_PIXMAP_OFF,
round_page(sc->sc_sunfb.sf_fbsize));
sc->sc_sunfb.sf_ro.ri_hw = sc;
fbwscons_init(&sc->sc_sunfb, isconsole ? 0 : RI_CLEAR);
fbwscons_setcolormap(&sc->sc_sunfb, cgtwo_setcolor);
printf(": %dx%d\n", sc->sc_sunfb.sf_width, sc->sc_sunfb.sf_height);
if (isconsole) {
fbwscons_console_init(&sc->sc_sunfb, -1);
}
fbwscons_attach(&sc->sc_sunfb, &cgtwo_accessops, isconsole);
}
int
cgtwo_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
{
struct cgtwo_softc *sc = v;
struct wsdisplay_fbinfo *wdf;
struct wsdisplay_cmap *cm;
int error;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_SUNCG2;
break;
case WSDISPLAYIO_GINFO:
wdf = (struct wsdisplay_fbinfo *)data;
wdf->height = sc->sc_sunfb.sf_height;
wdf->width = sc->sc_sunfb.sf_width;
wdf->depth = sc->sc_sunfb.sf_depth;
wdf->cmsize = CG2_CMSIZE;
break;
case WSDISPLAYIO_LINEBYTES:
*(u_int *)data = sc->sc_sunfb.sf_linebytes;
break;
case WSDISPLAYIO_GETCMAP:
cm = (struct wsdisplay_cmap *)data;
error = cgtwo_getcmap(sc, cm);
if (error)
return (error);
break;
case WSDISPLAYIO_PUTCMAP:
cm = (struct wsdisplay_cmap *)data;
error = cgtwo_putcmap(sc, cm);
if (error)
return (error);
break;
case WSDISPLAYIO_SVIDEO:
case WSDISPLAYIO_GVIDEO:
break;
case WSDISPLAYIO_GCURPOS:
case WSDISPLAYIO_SCURPOS:
case WSDISPLAYIO_GCURMAX:
case WSDISPLAYIO_GCURSOR:
case WSDISPLAYIO_SCURSOR:
default:
return (-1); /* not supported yet */
}
return (0);
}
paddr_t
cgtwo_mmap(void *v, off_t offset, int prot)
{
struct cgtwo_softc *sc = v;
if (offset & PGOFSET)
return (-1);
if (offset >= 0 && offset < sc->sc_sunfb.sf_fbsize) {
return (REG2PHYS(&sc->sc_phys,
CG2_PIXMAP_OFF + offset) | PMAP_NC);
}
return (-1);
}
void
cgtwo_burner(void *v, u_int on, u_int flags)
{
struct cgtwo_softc *sc = v;
int s;
s = splhigh();
if (on)
sc->sc_reg->video_enab = 1;
else
sc->sc_reg->video_enab = 0;
splx(s);
}
int
cgtwo_getcmap(struct cgtwo_softc *sc, struct wsdisplay_cmap *cmap)
{
u_int index = cmap->index, count = cmap->count, i;
u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE];
volatile u_short *hwcmap = sc->sc_cmap;
int error;
volatile u_short *p;
if (index >= CG2_CMSIZE || count >= CG2_CMSIZE - index)
return (EINVAL);
while (sc->sc_reg->retrace == 0)
DELAY(1);
sc->sc_reg->update_cmap = 0;
/* Copy hardware to local arrays. */
p = &sc_redmap(hwcmap)[index];
for (i = 0; i < count; i++)
red[i] = *p++;
p = &sc_greenmap(hwcmap)[index];
for (i = 0; i < count; i++)
green[i] = *p++;
p = &sc_bluemap(hwcmap)[index];
for (i = 0; i < count; i++)
blue[i] = *p++;
sc->sc_reg->update_cmap = 1;
/* Copy local arrays to user space. */
if ((error = copyout(red, cmap->red, count)) != 0)
return (error);
if ((error = copyout(green, cmap->green, count)) != 0)
return (error);
if ((error = copyout(blue, cmap->blue, count)) != 0)
return (error);
return (0);
}
int
cgtwo_putcmap(struct cgtwo_softc *sc, struct wsdisplay_cmap *cmap)
{
u_int index = cmap->index, count = cmap->count, i;
u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE];
volatile u_short *hwcmap = sc->sc_cmap;
int error;
volatile u_short *p;
if (index >= CG2_CMSIZE || count >= CG2_CMSIZE - index)
return (EINVAL);
/* Copy from user space to local arrays. */
if ((error = copyin(cmap->red, red, count)) != 0)
return (error);
if ((error = copyin(cmap->green, green, count)) != 0)
return (error);
if ((error = copyin(cmap->blue, blue, count)) != 0)
return (error);
while (sc->sc_reg->retrace == 0)
DELAY(1);
sc->sc_reg->update_cmap = 0;
/* Copy from local arrays to hardware. */
p = &sc_redmap(hwcmap)[index];
for (i = 0; i < count; i++)
*p++ = red[i];
p = &sc_greenmap(hwcmap)[index];
for (i = 0; i < count; i++)
*p++ = green[i];
p = &sc_bluemap(hwcmap)[index];
for (i = 0; i < count; i++)
*p++ = blue[i];
sc->sc_reg->update_cmap = 1;
return (0);
}
void
cgtwo_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b)
{
struct cgtwo_softc *sc = v;
while (sc->sc_reg->retrace == 0)
DELAY(1);
sc->sc_reg->update_cmap = 0;
sc_redmap(sc->sc_cmap)[index] = r;
sc_greenmap(sc->sc_cmap)[index] = g;
sc_bluemap(sc->sc_cmap)[index] = b;
sc->sc_reg->update_cmap = 1;
}
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