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Split & move cgthree from arch/sparc.

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pk 2000-08-20 19:58:19 +00:00
parent 5e05458699
commit e8ed83e13f
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347
sys/dev/sun/cgthree.c Normal file
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/* $NetBSD: cgthree.c,v 1.1 2000/08/20 19:58:19 pk Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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 NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* color display (cgthree) 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 <machine/bus.h>
#include <machine/autoconf.h>
#include <dev/sun/fbio.h>
#include <dev/sun/fbvar.h>
#include <dev/sun/btreg.h>
#include <dev/sun/btvar.h>
#include <dev/sun/cgthreereg.h>
#include <dev/sun/cgthreevar.h>
#include <machine/conf.h>
/* cdevsw prototypes */
cdev_decl(cgthree);
extern struct cfdriver cgthree_cd;
/* frame buffer generic driver */
static struct fbdriver cgthreefbdriver = {
cgthreeunblank, cgthreeopen, cgthreeclose, cgthreeioctl, cgthreepoll,
cgthreemmap
};
static void cgthreeunblank(struct device *);
static void cgthreeloadcmap(struct cgthree_softc *, int, int);
static void cgthree_set_video(struct cgthree_softc *, int);
static int cgthree_get_video(struct cgthree_softc *);
/* Video control parameters */
struct cg3_videoctrl {
unsigned char sense; /* Monitor sense value */
unsigned char vctrl[12];
} cg3_videoctrl[] = {
/* Missing entries: sense 0x10, 0x30, 0x50 */
{ 0x40, /* this happens to be my 19'' 1152x900 gray-scale monitor */
{0xbb, 0x2b, 0x3, 0xb, 0xb3, 0x3, 0xaf, 0x2b, 0x2, 0xa, 0xff, 0x1}
},
{ 0x00, /* default? must be last */
{0xbb, 0x2b, 0x3, 0xb, 0xb3, 0x3, 0xaf, 0x2b, 0x2, 0xa, 0xff, 0x1}
}
};
void
cgthreeattach(sc, name, isconsole)
struct cgthree_softc *sc;
char *name;
int isconsole;
{
int i;
struct fbdevice *fb = &sc->sc_fb;
volatile struct fbcontrol *fbc = sc->sc_fbc;
volatile struct bt_regs *bt = &fbc->fbc_dac;
fb->fb_driver = &cgthreefbdriver;
fb->fb_type.fb_cmsize = 256;
fb->fb_type.fb_size = fb->fb_type.fb_height * fb->fb_linebytes;
printf(": %s, %d x %d", name,
fb->fb_type.fb_width, fb->fb_type.fb_height);
/* Transfer video magic to board, if it's not running */
if ((fbc->fbc_ctrl & FBC_TIMING) == 0) {
int sense = (fbc->fbc_status & FBS_MSENSE);
/* Search table for video timings fitting this monitor */
for (i = 0; i < sizeof(cg3_videoctrl)/sizeof(cg3_videoctrl[0]);
i++) {
int j;
if (sense != cg3_videoctrl[i].sense)
continue;
printf(" setting video ctrl");
for (j = 0; j < 12; j++)
fbc->fbc_vcontrol[j] =
cg3_videoctrl[i].vctrl[j];
fbc->fbc_ctrl |= FBC_TIMING;
break;
}
}
/* Initialize the default color map. */
bt_initcmap(&sc->sc_cmap, 256);
cgthreeloadcmap(sc, 0, 256);
/* make sure we are not blanked */
cgthree_set_video(sc, 1);
BT_INIT(bt, 0);
if (isconsole) {
printf(" (console)\n");
#ifdef RASTERCONSOLE
fbrcons_init(fb);
#endif
} else
printf("\n");
fb_attach(fb, isconsole);
}
int
cgthreeopen(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
int unit = minor(dev);
if (unit >= cgthree_cd.cd_ndevs || cgthree_cd.cd_devs[unit] == NULL)
return (ENXIO);
return (0);
}
int
cgthreeclose(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
return (0);
}
int
cgthreeioctl(dev, cmd, data, flags, p)
dev_t dev;
u_long cmd;
caddr_t data;
int flags;
struct proc *p;
{
struct cgthree_softc *sc = cgthree_cd.cd_devs[minor(dev)];
struct fbgattr *fba;
int error;
switch (cmd) {
case FBIOGTYPE:
*(struct fbtype *)data = sc->sc_fb.fb_type;
break;
case FBIOGATTR:
fba = (struct fbgattr *)data;
fba->real_type = sc->sc_fb.fb_type.fb_type;
fba->owner = 0; /* XXX ??? */
fba->fbtype = sc->sc_fb.fb_type;
fba->sattr.flags = 0;
fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type;
fba->sattr.dev_specific[0] = -1;
fba->emu_types[0] = sc->sc_fb.fb_type.fb_type;
fba->emu_types[1] = -1;
break;
case FBIOGETCMAP:
#define p ((struct fbcmap *)data)
return (bt_getcmap(p, &sc->sc_cmap, 256, 1));
case FBIOPUTCMAP:
/* copy to software map */
error = bt_putcmap(p, &sc->sc_cmap, 256, 1);
if (error)
return (error);
/* now blast them into the chip */
/* XXX should use retrace interrupt */
cgthreeloadcmap(sc, p->index, p->count);
#undef p
break;
case FBIOGVIDEO:
*(int *)data = cgthree_get_video(sc);
break;
case FBIOSVIDEO:
cgthree_set_video(sc, *(int *)data);
break;
default:
return (ENOTTY);
}
return (0);
}
int
cgthreepoll(dev, events, p)
dev_t dev;
int events;
struct proc *p;
{
return (seltrue(dev, events, p));
}
/*
* Undo the effect of an FBIOSVIDEO that turns the video off.
*/
static void
cgthreeunblank(dev)
struct device *dev;
{
cgthree_set_video((struct cgthree_softc *)dev, 1);
}
static void
cgthree_set_video(sc, enable)
struct cgthree_softc *sc;
int enable;
{
if (enable)
sc->sc_fbc->fbc_ctrl |= FBC_VENAB;
else
sc->sc_fbc->fbc_ctrl &= ~FBC_VENAB;
}
static int
cgthree_get_video(sc)
struct cgthree_softc *sc;
{
return ((sc->sc_fbc->fbc_ctrl & FBC_VENAB) != 0);
}
/*
* Load a subset of the current (new) colormap into the Brooktree DAC.
*/
static void
cgthreeloadcmap(sc, start, ncolors)
struct cgthree_softc *sc;
int start, ncolors;
{
volatile struct bt_regs *bt;
u_int *ip;
int count;
ip = &sc->sc_cmap.cm_chip[BT_D4M3(start)]; /* start/4 * 3 */
count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3;
bt = &sc->sc_fbc->fbc_dac;
bt->bt_addr = BT_D4M4(start);
while (--count >= 0)
bt->bt_cmap = *ip++;
}
/*
* Return the address that would map the given device at the given
* offset, allowing for the given protection, or return -1 for error.
*
* The cg3 is mapped starting at 256KB, for pseudo-compatibility with
* the cg4 (which had an overlay plane in the first 128K and an enable
* plane in the next 128K). X11 uses only 256k+ region but tries to
* map the whole thing, so we repeatedly map the first 256K to the
* first page of the color screen. If someone tries to use the overlay
* and enable regions, they will get a surprise....
*
* As well, mapping at an offset of 0x04000000 causes the cg3 to be
* mapped in flat mode without the cg4 emulation.
*/
paddr_t
cgthreemmap(dev, off, prot)
dev_t dev;
off_t off;
int prot;
{
struct cgthree_softc *sc = cgthree_cd.cd_devs[minor(dev)];
bus_space_handle_t bh;
#define START (128*1024 + 128*1024)
#define NOOVERLAY (0x04000000)
if (off & PGOFSET)
panic("cgthreemmap");
if (off < 0)
return (-1);
if ((u_int)off >= NOOVERLAY)
off -= NOOVERLAY;
else if ((u_int)off >= START)
off -= START;
else
off = 0;
if (off >= sc->sc_fb.fb_type.fb_size)
return (-1);
if (bus_space_mmap(sc->sc_bustag,
sc->sc_btype,
sc->sc_paddr + CG3REG_MEM + off,
BUS_SPACE_MAP_LINEAR, &bh))
return (-1);
return ((paddr_t)bh);
}

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/* $NetBSD: cgthreereg.h,v 1.1 2000/08/20 19:58:19 pk Exp $ */
/*
* 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. 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.
*
* @(#)cgthreereg.h 8.2 (Berkeley) 10/30/93
*/
/*
* cgthree display registers. Much like bwtwo registers, except that
* there is a Brooktree Video DAC in there (so we also use btreg.h).
*/
/* offsets */
#define CG3REG_ID 0
#define CG3REG_REG 0x400000
#define CG3REG_MEM 0x800000
/* same, but for gdb */
struct cgthree_all {
long ba_id; /* ID = 0xfe010104 on my IPC */
char ba_xxx0[0x400000-4];
struct fbcontrol ba_fbc; /* Brooktree regs (+ misc control) */
char ba_xxx1[0x400000-sizeof(struct fbcontrol)];
char ba_ram[4096]; /* actually larger */
};

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sys/dev/sun/cgthreevar.h Normal file
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/* $NetBSD: cgthreevar.h,v 1.1 2000/08/20 19:58:19 pk Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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 NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* color display (cgthree) driver.
*/
/* per-display variables */
struct cgthree_softc {
struct device sc_dev; /* base device */
struct fbdevice sc_fb; /* frame buffer device */
bus_space_tag_t sc_bustag;
bus_type_t sc_btype; /* phys address description */
bus_addr_t sc_paddr; /* for device mmap() */
volatile struct fbcontrol *sc_fbc; /* Brooktree registers */
union bt_cmap sc_cmap; /* Brooktree color map */
};
void cgthreeattach(struct cgthree_softc *, char *, int);