NetBSD-5.0.2/sys/arch/luna68k/dev/lunafb.c
/* $NetBSD: lunafb.c,v 1.16 2008/04/28 20:23:26 martin Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Tohru Nishimura.
*
* 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 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.
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: lunafb.c,v 1.16 2008/04/28 20:23:26 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/malloc.h>
#include <sys/mman.h>
#include <sys/proc.h>
#include <sys/tty.h>
#include <sys/errno.h>
#include <sys/buf.h>
#include <uvm/uvm_extern.h>
#include <dev/rcons/raster.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wscons_raster.h>
#include <dev/wscons/wsdisplayvar.h>
#include <machine/cpu.h>
#include <machine/autoconf.h>
struct bt454 {
u_int8_t bt_addr; /* map address register */
u_int8_t bt_cmap; /* colormap data register */
};
struct bt458 {
u_int8_t bt_addr; /* map address register */
unsigned :24;
u_int8_t bt_cmap; /* colormap data register */
unsigned :24;
u_int8_t bt_ctrl; /* control register */
unsigned :24;
u_int8_t bt_omap; /* overlay (cursor) map register */
unsigned :24;
};
#define OMFB_RFCNT 0xB1000000 /* video h-origin/v-origin */
#define OMFB_PLANEMASK 0xB1040000 /* planemask register */
#define OMFB_FB_WADDR 0xB1080008 /* common plane */
#define OMFB_FB_RADDR 0xB10C0008 /* plane #0 */
#define OMFB_ROPFUNC 0xB12C0000 /* ROP function code */
#define OMFB_RAMDAC 0xC1100000 /* Bt454/Bt458 RAMDAC */
#define OMFB_SIZE (0xB1300000 - 0xB1080000 + PAGE_SIZE)
struct om_hwdevconfig {
int dc_wid; /* width of frame buffer */
int dc_ht; /* height of frame buffer */
int dc_depth; /* depth, bits per pixel */
int dc_rowbytes; /* bytes in a FB scan line */
int dc_cmsize; /* colormap size */
vaddr_t dc_videobase; /* base of flat frame buffer */
struct raster dc_raster; /* raster description */
struct rcons dc_rcons; /* raster blitter control info */
};
struct hwcmap {
#define CMAP_SIZE 256
u_int8_t r[CMAP_SIZE];
u_int8_t g[CMAP_SIZE];
u_int8_t b[CMAP_SIZE];
};
struct omfb_softc {
struct device sc_dev; /* base device */
struct om_hwdevconfig *sc_dc; /* device configuration */
struct hwcmap sc_cmap; /* software copy of colormap */
int nscreens;
};
static int omgetcmap __P((struct omfb_softc *, struct wsdisplay_cmap *));
static int omsetcmap __P((struct omfb_softc *, struct wsdisplay_cmap *));
static struct om_hwdevconfig omfb_console_dc;
static void omfb_getdevconfig __P((paddr_t, struct om_hwdevconfig *));
extern struct wsdisplay_emulops omfb_emulops;
static struct wsscreen_descr omfb_stdscreen = {
"std", 0, 0,
&omfb_emulops,
0, 0,
0
};
static const struct wsscreen_descr *_omfb_scrlist[] = {
&omfb_stdscreen,
};
static const struct wsscreen_list omfb_screenlist = {
sizeof(_omfb_scrlist) / sizeof(struct wsscreen_descr *), _omfb_scrlist
};
static int omfbioctl __P((void *, void *, u_long, void *, int,
struct lwp *));
static paddr_t omfbmmap __P((void *, void *, off_t, int));
static int omfb_alloc_screen __P((void *, const struct wsscreen_descr *,
void **, int *, int *, long *));
static void omfb_free_screen __P((void *, void *));
static int omfb_show_screen __P((void *, void *, int,
void (*) (void *, int, int), void *));
static const struct wsdisplay_accessops omfb_accessops = {
omfbioctl,
omfbmmap,
omfb_alloc_screen,
omfb_free_screen,
omfb_show_screen,
0 /* load_font */
};
static int omfbmatch __P((struct device *, struct cfdata *, void *));
static void omfbattach __P((struct device *, struct device *, void *));
CFATTACH_DECL(fb, sizeof(struct omfb_softc),
omfbmatch, omfbattach, NULL, NULL);
extern struct cfdriver fb_cd;
extern int hwplanemask; /* hardware planemask; retrieved at boot */
static int omfb_console;
int omfb_cnattach __P((void));
static int
omfbmatch(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct mainbus_attach_args *ma = aux;
if (strcmp(ma->ma_name, fb_cd.cd_name))
return (0);
#if 0 /* XXX badaddr() bombs if no framebuffer is installed */
if (badaddr((void *)ma->ma_addr, 4))
return (0);
#else
if (hwplanemask == 0)
return (0);
#endif
return (1);
}
static void
omfbattach(parent, self, args)
struct device *parent, *self;
void *args;
{
struct omfb_softc *sc = (struct omfb_softc *)self;
struct wsemuldisplaydev_attach_args waa;
if (omfb_console) {
sc->sc_dc = &omfb_console_dc;
sc->nscreens = 1;
}
else {
sc->sc_dc = (struct om_hwdevconfig *)
malloc(sizeof(struct om_hwdevconfig), M_DEVBUF, M_WAITOK);
omfb_getdevconfig(OMFB_FB_WADDR, sc->sc_dc);
}
printf(": %d x %d, %dbpp\n", sc->sc_dc->dc_wid, sc->sc_dc->dc_ht,
sc->sc_dc->dc_depth);
#if 0 /* WHITE on BLACK */
cm = &sc->sc_cmap;
memset(cm, 255, sizeof(struct hwcmap));
cm->r[0] = cm->g[0] = cm->b[0] = 0;
#endif
waa.console = omfb_console;
waa.scrdata = &omfb_screenlist;
waa.accessops = &omfb_accessops;
waa.accesscookie = sc;
config_found(self, &waa, wsemuldisplaydevprint);
}
/* EXPORT */ int
omfb_cnattach()
{
struct om_hwdevconfig *dc = &omfb_console_dc;
long defattr;
omfb_getdevconfig(OMFB_FB_WADDR, dc);
(*omfb_emulops.allocattr)(&dc->dc_rcons, 0, 0, 0, &defattr);
wsdisplay_cnattach(&omfb_stdscreen, &dc->dc_rcons, 0, 0, defattr);
omfb_console = 1;
return (0);
}
static int
omfbioctl(v, vs, cmd, data, flag, l)
void *v;
void *vs;
u_long cmd;
void *data;
int flag;
struct lwp *l;
{
struct omfb_softc *sc = v;
struct om_hwdevconfig *dc = sc->sc_dc;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = 0x19990927;
return (0);
case WSDISPLAYIO_GINFO:
#define wsd_fbip ((struct wsdisplay_fbinfo *)data)
wsd_fbip->height = dc->dc_ht;
wsd_fbip->width = dc->dc_wid;
wsd_fbip->depth = dc->dc_depth;
wsd_fbip->cmsize = dc->dc_cmsize;
#undef fbt
return (0);
case WSDISPLAYIO_GETCMAP:
return omgetcmap(sc, (struct wsdisplay_cmap *)data);
case WSDISPLAYIO_PUTCMAP:
return omsetcmap(sc, (struct wsdisplay_cmap *)data);
case WSDISPLAYIO_SVIDEO:
case WSDISPLAYIO_GVIDEO:
case WSDISPLAYIO_GCURPOS:
case WSDISPLAYIO_SCURPOS:
case WSDISPLAYIO_GCURMAX:
case WSDISPLAYIO_GCURSOR:
case WSDISPLAYIO_SCURSOR:
break;
}
return (EPASSTHROUGH);
}
/*
* Return the address that would map the given device at the given
* offset, allowing for the given protection, or return -1 for error.
*/
static paddr_t
omfbmmap(v, vs, offset, prot)
void *v;
void *vs;
off_t offset;
int prot;
{
struct omfb_softc *sc = v;
if (offset >= OMFB_SIZE || offset < 0)
return (-1);
return m68k_btop(m68k_trunc_page(sc->sc_dc->dc_videobase) + offset);
}
static int
omgetcmap(sc, p)
struct omfb_softc *sc;
struct wsdisplay_cmap *p;
{
u_int index = p->index, count = p->count;
int cmsize, error;
cmsize = sc->sc_dc->dc_cmsize;
if (index >= cmsize || count > cmsize - index)
return (EINVAL);
error = copyout(&sc->sc_cmap.r[index], p->red, count);
if (error)
return error;
error = copyout(&sc->sc_cmap.g[index], p->green, count);
if (error)
return error;
error = copyout(&sc->sc_cmap.b[index], p->blue, count);
return error;
}
static int
omsetcmap(sc, p)
struct omfb_softc *sc;
struct wsdisplay_cmap *p;
{
struct hwcmap cmap;
u_int index = p->index, count = p->count;
int cmsize, i, error;
cmsize = sc->sc_dc->dc_cmsize;
if (index >= cmsize || (index + count) > cmsize)
return (EINVAL);
error = copyin(p->red, &cmap.r[index], count);
if (error)
return error;
error = copyin(p->green, &cmap.g[index], count);
if (error)
return error;
error = copyin(p->blue, &cmap.b[index], count);
if (error)
return error;
memcpy(&sc->sc_cmap.r[index], &cmap.r[index], count);
memcpy(&sc->sc_cmap.g[index], &cmap.g[index], count);
memcpy(&sc->sc_cmap.b[index], &cmap.b[index], count);
if (hwplanemask == 0x0f) {
struct bt454 *odac = (struct bt454 *)OMFB_RAMDAC;
odac->bt_addr = index;
for (i = index; i < count; i++) {
odac->bt_cmap = sc->sc_cmap.r[i];
odac->bt_cmap = sc->sc_cmap.g[i];
odac->bt_cmap = sc->sc_cmap.b[i];
}
}
else if (hwplanemask == 0xff) {
struct bt458 *ndac = (struct bt458 *)OMFB_RAMDAC;
ndac->bt_addr = index;
for (i = index; i < count; i++) {
ndac->bt_cmap = sc->sc_cmap.r[i];
ndac->bt_cmap = sc->sc_cmap.g[i];
ndac->bt_cmap = sc->sc_cmap.b[i];
}
}
return (0);
}
static void
omfb_getdevconfig(paddr, dc)
paddr_t paddr;
struct om_hwdevconfig *dc;
{
int bpp, i;
struct raster *rap;
struct rcons *rcp;
union {
struct { short h, v; } p;
u_int32_t u;
} rfcnt;
switch (hwplanemask) {
case 0xff:
bpp = 8; /* XXX check monochrome bit in DIPSW */
break;
default:
case 0x0f:
bpp = 4; /* XXX check monochrome bit in DIPSW */
break;
case 1:
bpp = 1;
break;
}
dc->dc_wid = 1280;
dc->dc_ht = 1024;
dc->dc_depth = bpp;
dc->dc_rowbytes = 2048 / 8;
dc->dc_cmsize = (bpp == 1) ? 0 : 1 << bpp;
dc->dc_videobase = paddr;
#if 0 /* WHITE on BLACK XXX experiment resulted in WHITE on SKYBLUE... */
if (hwplanemask == 0x0f) {
/* XXX Need Bt454 initialization */
struct bt454 *odac = (struct bt454 *)OMFB_RAMDAC;
odac->bt_addr = 0;
odac->bt_cmap = 0;
odac->bt_cmap = 0;
odac->bt_cmap = 0;
for (i = 1; i < 16; i++) {
odac->bt_cmap = 255;
odac->bt_cmap = 255;
odac->bt_cmap = 255;
}
}
else if (hwplanemask == 0xff) {
struct bt458 *ndac = (struct bt458 *)OMFB_RAMDAC;
ndac->bt_addr = 0x04;
ndac->bt_ctrl = 0xff; /* all planes will be read */
ndac->bt_ctrl = 0x00; /* all planes have non-blink */
ndac->bt_ctrl = 0x43; /* pallete enabled, ovly plane */
ndac->bt_ctrl = 0x00; /* no test mode */
ndac->bt_addr = 0;
ndac->bt_cmap = 0;
ndac->bt_cmap = 0;
ndac->bt_cmap = 0;
for (i = 1; i < 256; i++) {
ndac->bt_cmap = 255;
ndac->bt_cmap = 255;
ndac->bt_cmap = 255;
}
}
#endif
/* adjust h/v orgin on screen */
rfcnt.p.h = 7;
rfcnt.p.v = -27;
*(u_int32_t *)OMFB_RFCNT = rfcnt.u; /* single write of 0x007ffe6 */
/* clear the screen */
*(u_int32_t *)OMFB_PLANEMASK = 0xff;
((u_int32_t *)OMFB_ROPFUNC)[5] = ~0; /* ROP copy */
for (i = 0; i < dc->dc_ht * dc->dc_rowbytes/sizeof(u_int32_t); i++)
*((u_int32_t *)dc->dc_videobase + i) = 0;
*(u_int32_t *)OMFB_PLANEMASK = 0x01;
/* initialize the raster */
rap = &dc->dc_raster;
rap->width = dc->dc_wid;
rap->height = dc->dc_ht;
rap->depth = dc->dc_depth;
rap->linelongs = dc->dc_rowbytes / sizeof(u_int32_t);
rap->pixels = (u_int32_t *)dc->dc_videobase;
/* initialize the raster console blitter */
rcp = &dc->dc_rcons;
rcp->rc_sp = rap;
rcp->rc_crow = rcp->rc_ccol = -1;
rcp->rc_crowp = &rcp->rc_crow;
rcp->rc_ccolp = &rcp->rc_ccol;
rcons_init(rcp, 34, 80);
omfb_stdscreen.nrows = dc->dc_rcons.rc_maxrow;
omfb_stdscreen.ncols = dc->dc_rcons.rc_maxcol;
}
static int
omfb_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
void *v;
const struct wsscreen_descr *type;
void **cookiep;
int *curxp, *curyp;
long *attrp;
{
struct omfb_softc *sc = v;
long defattr;
if (sc->nscreens > 0)
return (ENOMEM);
*cookiep = &sc->sc_dc->dc_rcons; /* one and only for now */
*curxp = 0;
*curyp = 0;
(*omfb_emulops.allocattr)(&sc->sc_dc->dc_rcons, 0, 0, 0, &defattr);
*attrp = defattr;
sc->nscreens++;
return (0);
}
static void
omfb_free_screen(v, cookie)
void *v;
void *cookie;
{
struct omfb_softc *sc = v;
if (sc->sc_dc == &omfb_console_dc)
panic("omfb_free_screen: console");
sc->nscreens--;
}
static int
omfb_show_screen(v, cookie, waitok, cb, cbarg)
void *v;
void *cookie;
int waitok;
void (*cb) __P((void *, int, int));
void *cbarg;
{
return 0;
}