/* $OpenBSD: cgthree.c,v 1.33 2007/02/18 18:40:35 miod Exp $ */
/* $NetBSD: cgthree.c,v 1.33 1997/05/24 20:16:11 pk Exp $ */
/*
* Copyright (c) 2002 Miodrag Vallat. All rights reserved.
* Copyright (c) 2001 Jason L. Wright (jason@thought.net)
* 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.
*
* Effort sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F30602-01-2-0537.
*
*
* 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.
*
* @(#)cgthree.c 8.2 (Berkeley) 10/30/93
*/
/*
* Color display (cgthree) driver.
* Works with the real Sun hardware, as well as various clones from Tatung,
* Integrix (S20), and the Vigra VS10-EK.
*/
#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>
#include <machine/cpu.h>
#include <machine/conf.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/rasops/rasops.h>
#include <machine/fbvar.h>
#include <sparc/dev/btreg.h>
#include <sparc/dev/btvar.h>
#include <sparc/dev/cgthreereg.h>
#include <sparc/dev/sbusvar.h>
/* per-display variables */
struct cgthree_softc {
struct sunfb sc_sunfb; /* common base part */
struct rom_reg sc_phys; /* phys address description */
volatile struct fbcontrol *sc_fbc; /* Brooktree registers */
union bt_cmap sc_cmap; /* Brooktree color map */
struct intrhand sc_ih;
};
void cgthree_burner(void *, u_int, u_int);
int cgthree_intr(void *);
int cgthree_ioctl(void *, u_long, caddr_t, int, struct proc *);
static __inline__
void cgthree_loadcmap_deferred(struct cgthree_softc *, u_int, u_int);
paddr_t cgthree_mmap(void *, off_t, int);
void cgthree_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
struct wsdisplay_accessops cgthree_accessops = {
cgthree_ioctl,
cgthree_mmap,
NULL, /* alloc_screen */
NULL, /* free_screen */
NULL, /* show_screen */
NULL, /* load_font */
NULL, /* scrollback */
NULL, /* getchar */
cgthree_burner,
NULL /* pollc */
};
int cgthreematch(struct device *, void *, void *);
void cgthreeattach(struct device *, struct device *, void *);
struct cfattach cgthree_ca = {
sizeof (struct cgthree_softc), cgthreematch, cgthreeattach
};
struct cfdriver cgthree_cd = {
NULL, "cgthree", DV_DULL
};
/* Video control parameters */
struct cg3_videoctrl {
u_int8_t sense;
u_int8_t vctrl[12];
} cg3_videoctrl[] = {
{ /* cpd-1790 */
0x31,
{ 0xbb, 0x2b, 0x04, 0x14, 0xae, 0x03,
0xa8, 0x24, 0x01, 0x05, 0xff, 0x01 },
},
{ /* gdm-20e20 */
0x41,
{ 0xb7, 0x27, 0x03, 0x0f, 0xae, 0x03,
0xae, 0x2a, 0x01, 0x09, 0xff, 0x01 },
},
{ /* defaults, should be last */
0xff,
{ 0xbb, 0x2b, 0x03, 0x0b, 0xb3, 0x03,
0xaf, 0x2b, 0x02, 0x0a, 0xff, 0x01 },
},
};
int
cgthreematch(struct device *parent, void *vcf, void *aux)
{
struct cfdata *cf = vcf;
struct confargs *ca = aux;
struct romaux *ra = &ca->ca_ra;
if (strcmp(cf->cf_driver->cd_name, ra->ra_name) &&
strcmp("cgRDI", ra->ra_name))
return (0);
if (ca->ca_bustype != BUS_SBUS)
return (0);
return (1);
}
void
cgthreeattach(struct device *parent, struct device *self, void *args)
{
struct cgthree_softc *sc = (struct cgthree_softc *)self;
struct confargs *ca = args;
int node, pri, isrdi = 0, i;
volatile struct bt_regs *bt;
int isconsole;
char *nam;
pri = ca->ca_ra.ra_intr[0].int_pri;
printf(" pri %d: ", pri);
node = ca->ca_ra.ra_node;
if (strcmp(ca->ca_ra.ra_name, "cgRDI") == 0) {
isrdi = 1;
nam = "cgRDI";
} else
nam = getpropstring(node, "model");
if (nam != NULL && *nam != '\0')
printf("%s, ", nam);
isconsole = node == fbnode;
sc->sc_fbc = (volatile struct fbcontrol *)
mapiodev(ca->ca_ra.ra_reg, CG3REG_REG,
sizeof(struct fbcontrol));
/* Transfer video magic to board, if it's not running */
if (isrdi == 0 && (sc->sc_fbc->fbc_ctrl & FBC_TIMING) == 0)
for (i = 0; i < sizeof(cg3_videoctrl)/sizeof(cg3_videoctrl[0]);
i++) {
volatile struct fbcontrol *fbc = sc->sc_fbc;
if (cg3_videoctrl[i].sense == 0xff ||
(fbc->fbc_status & FBS_MSENSE) ==
cg3_videoctrl[i].sense) {
int j;
#ifdef DEBUG
printf(" (setting video ctrl)");
#endif
for (j = 0; j < 12; j++)
fbc->fbc_vcontrol[j] =
cg3_videoctrl[i].vctrl[j];
fbc->fbc_ctrl |= FBC_TIMING;
break;
}
}
sc->sc_phys = ca->ca_ra.ra_reg[0];
sc->sc_ih.ih_fun = cgthree_intr;
sc->sc_ih.ih_arg = sc;
intr_establish(pri, &sc->sc_ih, IPL_FB, self->dv_xname);
/* enable video */
cgthree_burner(sc, 1, 0);
bt = &sc->sc_fbc->fbc_dac;
BT_INIT(bt, 0);
fb_setsize(&sc->sc_sunfb, 8, 1152, 900, node, ca->ca_bustype);
sc->sc_sunfb.sf_ro.ri_bits = mapiodev(ca->ca_ra.ra_reg, CG3REG_MEM,
round_page(sc->sc_sunfb.sf_fbsize));
sc->sc_sunfb.sf_ro.ri_hw = sc;
printf("%dx%d\n", sc->sc_sunfb.sf_width, sc->sc_sunfb.sf_height);
/*
* If the framebuffer width is under 1024x768, which is the case for
* some clones on laptops, as well as with the VS10-EK, switch from
* the PROM font to the more adequate 8x16 font here.
* However, we need to adjust two things in this case:
* - the display row should be overrided from the current PROM metrics,
* to prevent us from overwriting the last few lines of text.
* - if the 80x34 screen would make a large margin appear around it,
* choose to clear the screen rather than keeping old prom output in
* the margins.
* XXX there should be a rasops "clear margins" feature
*/
fbwscons_init(&sc->sc_sunfb, isconsole &&
(sc->sc_sunfb.sf_width >= 1024) ? 0 : RI_CLEAR);
fbwscons_setcolormap(&sc->sc_sunfb, cgthree_setcolor);
if (isconsole) {
fbwscons_console_init(&sc->sc_sunfb,
sc->sc_sunfb.sf_width >= 1024 ? -1 : 0);
}
fbwscons_attach(&sc->sc_sunfb, &cgthree_accessops, isconsole);
}
int
cgthree_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
{
struct cgthree_softc *sc = v;
struct wsdisplay_fbinfo *wdf;
struct wsdisplay_cmap *cm;
int error;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_SUNCG3;
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 = 256;
break;
case WSDISPLAYIO_LINEBYTES:
*(u_int *)data = sc->sc_sunfb.sf_linebytes;
break;
case WSDISPLAYIO_GETCMAP:
cm = (struct wsdisplay_cmap *)data;
error = bt_getcmap(&sc->sc_cmap, cm);
if (error)
return (error);
break;
case WSDISPLAYIO_PUTCMAP:
cm = (struct wsdisplay_cmap *)data;
error = bt_putcmap(&sc->sc_cmap, cm);
if (error)
return (error);
cgthree_loadcmap_deferred(sc, cm->index, cm->count);
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
cgthree_mmap(void *v, off_t offset, int prot)
{
struct cgthree_softc *sc = v;
if (offset & PGOFSET)
return (-1);
if (offset >= 0 && offset < sc->sc_sunfb.sf_fbsize) {
return (REG2PHYS(&sc->sc_phys,
CG3REG_MEM + offset) | PMAP_NC);
}
return (-1);
}
void
cgthree_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b)
{
struct cgthree_softc *sc = v;
bt_setcolor(&sc->sc_cmap, &sc->sc_fbc->fbc_dac, index, r, g, b, 0);
}
static __inline__ void
cgthree_loadcmap_deferred(struct cgthree_softc *sc, u_int start, u_int ncolors)
{
sc->sc_fbc->fbc_ctrl |= FBC_IENAB;
}
void
cgthree_burner(void *v, u_int on, u_int flags)
{
struct cgthree_softc *sc = v;
int s;
s = splhigh();
if (on)
sc->sc_fbc->fbc_ctrl |= FBC_VENAB | FBC_TIMING;
else {
sc->sc_fbc->fbc_ctrl &= ~FBC_VENAB;
if (flags & WSDISPLAY_BURN_VBLANK)
sc->sc_fbc->fbc_ctrl &= ~FBC_TIMING;
}
splx(s);
}
int
cgthree_intr(void *v)
{
struct cgthree_softc *sc = v;
if (!ISSET(sc->sc_fbc->fbc_ctrl, FBC_IENAB) ||
!ISSET(sc->sc_fbc->fbc_status, FBS_INTR)) {
/* Not expecting an interrupt, it's not for us. */
return (0);
}
/* Acknowledge the interrupt and disable it. */
sc->sc_fbc->fbc_ctrl &= ~FBC_IENAB;
bt_loadcmap(&sc->sc_cmap, &sc->sc_fbc->fbc_dac, 0, 256, 0);
return (1);
}