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/* $OpenBSD: bwtwo.c,v 1.5 2002/09/10 03:18:59 jason Exp $ */
/*
* Copyright (c) 2002 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Jason L. Wright
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/malloc.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <machine/autoconf.h>
#include <machine/openfirm.h>
#include <dev/sbus/sbusvar.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/wscons/wscons_raster.h>
#include <dev/rasops/rasops.h>
#define BWTWO_CTRL_OFFSET 0x400000
#define BWTWO_CTRL_SIZE (sizeof(u_int32_t) * 8)
#define BWTWO_VID_OFFSET 0x800000
#define BWTWO_VID_SIZE (1024 * 1024)
union bt_cmap {
u_int8_t cm_map[256][3]; /* 256 r/b/g entries */
u_int32_t cm_chip[256 * 3 / 4]; /* the way the chip is loaded */
};
#define BT_ADDR 0x00 /* map address register */
#define BT_CMAP 0x04 /* colormap data register */
#define BT_CTRL 0x08 /* control register */
#define BT_OMAP 0x0c /* overlay (cursor) map register */
#define FBC_CTRL 0x10 /* control */
#define FBC_STAT 0x11 /* status */
#define FBC_START 0x12 /* cursor start */
#define FBC_END 0x13 /* cursor end */
#define FBC_VCTRL 0x14 /* 12 bytes of timing goo */
#define BT_WRITE(sc, reg, val) \
bus_space_write_4((sc)->sc_bustag, (sc)->sc_ctrl_regs, (reg), (val))
#define BT_READ(sc, reg) \
bus_space_read_4((sc)->sc_bustag, (sc)->sc_ctrl_regs, (reg))
#define BT_BARRIER(sc,reg,flags) \
bus_space_barrier((sc)->sc_bustag, (sc)->sc_ctrl_regs, (reg), \
sizeof(u_int32_t), (flags))
#define BT_D4M3(x) ((((x) >> 2) << 1) + ((x) >> 2)) /* (x / 4) * 3 */
#define BT_D4M4(x) ((x) & ~3) /* (x / 4) * 4 */
#define FBC_CTRL_IENAB 0x80 /* interrupt enable */
#define FBC_CTRL_VENAB 0x40 /* video enable */
#define FBC_CTRL_TIME 0x20 /* timing enable */
#define FBC_CTRL_CURS 0x10 /* cursor compare enable */
#define FBC_CTRL_XTAL 0x0c /* xtal select (0,1,2,test): */
#define FBC_CTRL_XTAL_0 0x00 /* 0 */
#define FBC_CTRL_XTAL_1 0x04 /* 0 */
#define FBC_CTRL_XTAL_2 0x08 /* 0 */
#define FBC_CTRL_XTAL_TEST 0x0c /* 0 */
#define FBC_CTRL_DIV 0x03 /* divisor (1,2,3,4): */
#define FBC_CTRL_DIV_1 0x00 /* / 1 */
#define FBC_CTRL_DIV_2 0x01 /* / 2 */
#define FBC_CTRL_DIV_3 0x02 /* / 3 */
#define FBC_CTRL_DIV_4 0x03 /* / 4 */
#define FBC_STAT_INTR 0x80 /* interrupt pending */
#define FBC_STAT_RES 0x70 /* monitor sense: */
#define FBC_STAT_RES_1024 0x10 /* 1024x768 */
#define FBC_STAT_RES_1280 0x40 /* 1280x1024 */
#define FBC_STAT_RES_1152 0x30 /* 1152x900 */
#define FBC_STAT_RES_1152A 0x40 /* 1152x900x76, A */
#define FBC_STAT_RES_1600 0x50 /* 1600x1200 */
#define FBC_STAT_RES_1152B 0x60 /* 1152x900x86, B */
#define FBC_STAT_ID 0x0f /* id mask: */
#define FBC_STAT_ID_COLOR 0x01 /* color */
#define FBC_STAT_ID_MONO 0x02 /* monochrome */
#define FBC_STAT_ID_MONOECL 0x03 /* monochrome, ecl */
#define FBC_READ(sc, reg) \
bus_space_read_1((sc)->sc_bustag, (sc)->sc_ctrl_regs, (reg))
#define FBC_WRITE(sc, reg, val) \
bus_space_write_1((sc)->sc_bustag, (sc)->sc_ctrl_regs, (reg), (val))
struct bwtwo_softc {
struct device sc_dev;
struct sbusdev sc_sd;
bus_space_tag_t sc_bustag;
bus_addr_t sc_paddr;
bus_space_handle_t sc_ctrl_regs;
bus_space_handle_t sc_vid_regs;
int sc_nscreens;
int sc_width, sc_height, sc_depth, sc_linebytes;
union bt_cmap sc_cmap;
struct rasops_info sc_rasops;
int *sc_crowp, *sc_ccolp;
};
struct wsscreen_descr bwtwo_stdscreen = {
"std",
0, 0, /* will be filled in -- XXX shouldn't, it's global. */
0,
0, 0,
WSSCREEN_UNDERLINE | WSSCREEN_REVERSE
};
const struct wsscreen_descr *bwtwo_scrlist[] = {
&bwtwo_stdscreen,
/* XXX other formats? */
};
struct wsscreen_list bwtwo_screenlist = {
sizeof(bwtwo_scrlist) / sizeof(struct wsscreen_descr *), bwtwo_scrlist
};
int bwtwo_ioctl(void *, u_long, caddr_t, int, struct proc *);
int bwtwo_alloc_screen(void *, const struct wsscreen_descr *, void **,
int *, int *, long *);
void bwtwo_free_screen(void *, void *);
int bwtwo_show_screen(void *, void *, int, void (*cb)(void *, int, int),
void *);
paddr_t bwtwo_mmap(void *, off_t, int);
int bwtwo_is_console(int);
void bwtwo_burner(void *, u_int, u_int);
void bwtwo_updatecursor(struct rasops_info *);
static int a2int(char *, int);
struct wsdisplay_accessops bwtwo_accessops = {
bwtwo_ioctl,
bwtwo_mmap,
bwtwo_alloc_screen,
bwtwo_free_screen,
bwtwo_show_screen,
NULL, /* load_font */
NULL, /* scrollback */
NULL, /* getchar */
bwtwo_burner,
};
int bwtwomatch(struct device *, void *, void *);
void bwtwoattach(struct device *, struct device *, void *);
struct cfattach bwtwo_ca = {
sizeof (struct bwtwo_softc), bwtwomatch, bwtwoattach
};
struct cfdriver bwtwo_cd = {
NULL, "bwtwo", DV_DULL
};
int
bwtwomatch(parent, vcf, aux)
struct device *parent;
void *vcf, *aux;
{
struct cfdata *cf = vcf;
struct sbus_attach_args *sa = aux;
return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0);
}
void
bwtwoattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct bwtwo_softc *sc = (struct bwtwo_softc *)self;
struct sbus_attach_args *sa = aux;
struct wsemuldisplaydev_attach_args waa;
int console;
long defattr;
sc->sc_bustag = sa->sa_bustag;
sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset);
if (sa->sa_nreg != 1) {
printf(": expected %d registers, got %d\n", 1, sa->sa_nreg);
goto fail;
}
/*
* Map just CTRL and video RAM.
*/
if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot,
sa->sa_reg[0].sbr_offset + BWTWO_CTRL_OFFSET,
BWTWO_CTRL_SIZE, BUS_SPACE_MAP_LINEAR,
0, &sc->sc_ctrl_regs) != 0) {
printf(": cannot map ctrl registers\n");
goto fail_ctrl;
}
if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot,
sa->sa_reg[0].sbr_offset + BWTWO_VID_OFFSET,
BWTWO_VID_SIZE, BUS_SPACE_MAP_LINEAR,
0, &sc->sc_vid_regs) != 0) {
printf(": cannot map vid registers\n");
goto fail_vid;
}
console = bwtwo_is_console(sa->sa_node);
sc->sc_depth = getpropint(sa->sa_node, "depth", 1);
sc->sc_linebytes = getpropint(sa->sa_node, "linebytes", 1152);
sc->sc_height = getpropint(sa->sa_node, "height", 900);
sc->sc_width = getpropint(sa->sa_node, "width", 1152);
sbus_establish(&sc->sc_sd, &sc->sc_dev);
bwtwo_burner(sc, 1, 0);
sc->sc_rasops.ri_depth = sc->sc_depth;
sc->sc_rasops.ri_stride = sc->sc_linebytes;
sc->sc_rasops.ri_flg = RI_CENTER |
(console ? 0 : RI_CLEAR);
sc->sc_rasops.ri_bits = (void *)bus_space_vaddr(sc->sc_bustag,
sc->sc_vid_regs);
sc->sc_rasops.ri_width = sc->sc_width;
sc->sc_rasops.ri_height = sc->sc_height;
sc->sc_rasops.ri_hw = sc;
rasops_init(&sc->sc_rasops,
a2int(getpropstring(optionsnode, "screen-#rows"), 34),
a2int(getpropstring(optionsnode, "screen-#columns"), 80));
bwtwo_stdscreen.nrows = sc->sc_rasops.ri_rows;
bwtwo_stdscreen.ncols = sc->sc_rasops.ri_cols;
bwtwo_stdscreen.textops = &sc->sc_rasops.ri_ops;
sc->sc_rasops.ri_ops.alloc_attr(&sc->sc_rasops, 0, 0, 0, &defattr);
printf("\n");
if (console) {
if (romgetcursoraddr(&sc->sc_crowp, &sc->sc_ccolp))
sc->sc_ccolp = sc->sc_crowp = NULL;
if (sc->sc_ccolp != NULL)
sc->sc_rasops.ri_ccol = *sc->sc_ccolp;
if (sc->sc_crowp != NULL)
sc->sc_rasops.ri_crow = *sc->sc_crowp;
sc->sc_rasops.ri_updatecursor = bwtwo_updatecursor;
wsdisplay_cnattach(&bwtwo_stdscreen, &sc->sc_rasops,
sc->sc_rasops.ri_ccol, sc->sc_rasops.ri_crow, defattr);
}
waa.console = console;
waa.scrdata = &bwtwo_screenlist;
waa.accessops = &bwtwo_accessops;
waa.accesscookie = sc;
config_found(self, &waa, wsemuldisplaydevprint);
return;
fail_vid:
bus_space_unmap(sa->sa_bustag, sc->sc_ctrl_regs, BWTWO_CTRL_SIZE);
fail_ctrl:
fail:
}
int
bwtwo_ioctl(v, cmd, data, flags, p)
void *v;
u_long cmd;
caddr_t data;
int flags;
struct proc *p;
{
struct bwtwo_softc *sc = v;
struct wsdisplay_fbinfo *wdf;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_SUNBW;
break;
case WSDISPLAYIO_GINFO:
wdf = (void *)data;
wdf->height = sc->sc_height;
wdf->width = sc->sc_width;
wdf->depth = sc->sc_depth;
wdf->cmsize = 0;
break;
case WSDISPLAYIO_LINEBYTES:
*(u_int *)data = sc->sc_linebytes;
break;
case WSDISPLAYIO_GETCMAP:
case WSDISPLAYIO_PUTCMAP:
break;
case WSDISPLAYIO_SVIDEO:
case WSDISPLAYIO_GVIDEO:
case WSDISPLAYIO_GCURPOS:
case WSDISPLAYIO_SCURPOS:
case WSDISPLAYIO_GCURMAX:
case WSDISPLAYIO_GCURSOR:
case WSDISPLAYIO_SCURSOR:
default:
return -1; /* not supported yet */
}
return (0);
}
int
bwtwo_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
void *v;
const struct wsscreen_descr *type;
void **cookiep;
int *curxp, *curyp;
long *attrp;
{
struct bwtwo_softc *sc = v;
if (sc->sc_nscreens > 0)
return (ENOMEM);
*cookiep = &sc->sc_rasops;
*curyp = 0;
*curxp = 0;
sc->sc_rasops.ri_ops.alloc_attr(&sc->sc_rasops, 0, 0, 0, attrp);
sc->sc_nscreens++;
return (0);
}
void
bwtwo_free_screen(v, cookie)
void *v;
void *cookie;
{
struct bwtwo_softc *sc = v;
sc->sc_nscreens--;
}
int
bwtwo_show_screen(v, cookie, waitok, cb, cbarg)
void *v;
void *cookie;
int waitok;
void (*cb)(void *, int, int);
void *cbarg;
{
return (0);
}
#define START (128 * 1024 + 128 * 1024)
#define NOOVERLAY (0x04000000)
paddr_t
bwtwo_mmap(v, offset, prot)
void *v;
off_t offset;
int prot;
{
struct bwtwo_softc *sc = v;
if (offset & PGOFSET)
return (-1);
if (offset >= 0 && offset < (sc->sc_linebytes * sc->sc_height))
return (bus_space_mmap(sc->sc_bustag, sc->sc_paddr,
BWTWO_VID_OFFSET + offset, prot, BUS_SPACE_MAP_LINEAR));
return (-1);
}
static int
a2int(char *cp, int deflt)
{
int i = 0;
if (*cp == '\0')
return (deflt);
while (*cp != '\0')
i = i * 10 + *cp++ - '0';
return (i);
}
int
bwtwo_is_console(node)
int node;
{
extern int fbnode;
return (fbnode == node);
}
void
bwtwo_burner(vsc, on, flags)
void *vsc;
u_int on, flags;
{
struct bwtwo_softc *sc = vsc;
int s;
u_int8_t fbc;
s = splhigh();
fbc = FBC_READ(sc, FBC_CTRL);
if (on)
fbc |= FBC_CTRL_VENAB | FBC_CTRL_TIME;
else {
fbc &= ~FBC_CTRL_VENAB;
if (flags & WSDISPLAY_BURN_VBLANK)
fbc &= ~FBC_CTRL_TIME;
}
FBC_WRITE(sc, FBC_CTRL, fbc);
splx(s);
}
void
bwtwo_updatecursor(ri)
struct rasops_info *ri;
{
struct bwtwo_softc *sc = ri->ri_hw;
if (sc->sc_crowp != NULL)
*sc->sc_crowp = ri->ri_crow;
if (sc->sc_ccolp != NULL)
*sc->sc_ccolp = ri->ri_ccol;
}
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