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/* $OpenBSD: sti_sgc.c,v 1.19 2003/12/16 06:07:13 mickey Exp $ */
/*
* Copyright (c) 2000-2003 Michael Shalayeff
* 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 Michael Shalayeff.
* 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 MIND,
* 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.
*/
/*
* These cards has to be known to work so far:
* - HPA1991AGrayscale rev 0.02 (705/35) (byte-wide)
* - HPA1991AC19 rev 0.02 (715/33) (byte-wide)
* - HPA208LC1280 rev 8.04 (712/80) just works
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <uvm/uvm.h>
#include <machine/bus.h>
#include <machine/cpu.h>
#include <machine/iomod.h>
#include <machine/autoconf.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/wscons/wsconsio.h>
#include <dev/ic/stireg.h>
#include <dev/ic/stivar.h>
#include <hppa/dev/cpudevs.h>
#define STI_ROMSIZE 0x8000
#define STI_ID_FDDI 0x280b31af /* Medusa FDDI ROM id */
/* gecko optional graphics */
#define STI_GOPT1_REV 0x17
#define STI_GOPT2_REV 0x70
/* internal EG */
#define STI_INEG_REV 0x60
#define STI_INEG_PROM 0xf0011000
int sti_sgc_probe(struct device *, void *, void *);
void sti_sgc_attach(struct device *, struct device *, void *);
struct cfattach sti_sgc_ca = {
sizeof(struct sti_softc), sti_sgc_probe, sti_sgc_attach
};
struct cfattach sti_phantom_ca = {
sizeof(struct sti_softc), sti_sgc_probe, sti_sgc_attach
};
/*
* Locate STI ROM.
* On some machines it may not be part of the HPA space.
*/
paddr_t
sti_sgc_getrom(int unit, struct confargs *ca)
{
paddr_t rom = PAGE0->pd_resv2[1];
if (unit) {
if (ca->ca_type.iodc_sv_model == HPPA_FIO_GSGC &&
(ca->ca_type.iodc_revision == STI_GOPT1_REV ||
ca->ca_type.iodc_revision == STI_GOPT2_REV))
/* these two share the onboard's prom */ ;
else
rom = 0;
}
if (rom < HPPA_IOBEGIN) {
if (unit == 0 &&
ca->ca_type.iodc_sv_model == HPPA_FIO_GSGC &&
ca->ca_type.iodc_revision == STI_INEG_REV)
rom = STI_INEG_PROM;
else
rom = ca->ca_hpa;
}
return (rom);
}
int
sti_sgc_probe(parent, match, aux)
struct device *parent;
void *match, *aux;
{
struct cfdata *cf = match;
struct confargs *ca = aux;
bus_space_handle_t romh;
paddr_t rom;
u_int32_t id;
u_char devtype;
int rv = 0, romunmapped = 0;
if (ca->ca_type.iodc_type != HPPA_TYPE_FIO)
return (0);
/* these can only be graphics anyway */
if (ca->ca_type.iodc_sv_model == HPPA_FIO_GSGC)
return (1);
/* these need futher checking for the graphics id */
if (ca->ca_type.iodc_sv_model != HPPA_FIO_SGC)
return 0;
rom = sti_sgc_getrom(cf->cf_unit, ca);
#ifdef STIDEBUG
printf ("sti: hpa=%x, rom=%x\n", ca->ca_hpa, rom);
#endif
/* if it does not map, probably part of the lasi space */
if ((rv = bus_space_map(ca->ca_iot, rom, STI_ROMSIZE, 0, &romh))) {
#ifdef STIDEBUG
printf ("sti: cannot map rom space (%d)\n", rv);
#endif
if ((rom & HPPA_IOBEGIN) == HPPA_IOBEGIN) {
romh = rom;
romunmapped++;
} else {
/* in this case nobody has no freaking idea */
return 0;
}
}
#ifdef STIDEBUG
printf("sti: romh=%x\n", romh);
#endif
devtype = bus_space_read_1(ca->ca_iot, romh, 3);
#ifdef STIDEBUG
printf("sti: devtype=%d\n", devtype);
#endif
rv = 1;
switch (devtype) {
case STI_DEVTYPE4:
id = bus_space_read_4(ca->ca_iot, romh, 0x8);
break;
case STI_DEVTYPE1:
id = (bus_space_read_1(ca->ca_iot, romh, 0x10 + 3) << 24) |
(bus_space_read_1(ca->ca_iot, romh, 0x10 + 7) << 16) |
(bus_space_read_1(ca->ca_iot, romh, 0x10 + 11) << 8) |
(bus_space_read_1(ca->ca_iot, romh, 0x10 + 15));
break;
default:
#ifdef STIDEBUG
printf("sti: unknown type (%x)\n", devtype);
#endif
rv = 0;
}
if (rv &&
ca->ca_type.iodc_sv_model == HPPA_FIO_SGC && id == STI_ID_FDDI) {
#ifdef STIDEBUG
printf("sti: not a graphics device\n");
#endif
rv = 0;
}
if (!romunmapped)
bus_space_unmap(ca->ca_iot, romh, STI_ROMSIZE);
return (rv);
}
void
sti_sgc_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct sti_softc *sc = (void *)self;
struct confargs *ca = aux;
paddr_t rom;
int rv;
sc->memt = sc->iot = ca->ca_iot;
sc->base = ca->ca_hpa;
rom = sti_sgc_getrom(sc->sc_dev.dv_cfdata->cf_unit, ca);
if ((rv = bus_space_map(ca->ca_iot, rom, STI_ROMSIZE, 0, &sc->romh))) {
if ((rom & HPPA_IOBEGIN) == HPPA_IOBEGIN)
sc->romh = rom;
else {
printf (": cannot map rom space (%d)\n", rv);
return;
}
}
/* PCXL2: enale accel i/o for this space */
if (cpu_type == hpcxl2)
eaio_l2(0x8 >> (((ca->ca_hpa >> 25) & 3) - 2));
sc->sc_devtype = bus_space_read_1(sc->iot, sc->romh, 3);
if (ca->ca_hpa == (hppa_hpa_t)PAGE0->mem_cons.pz_hpa)
sc->sc_flags |= STI_CONSOLE;
sti_attach_common(sc);
}
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