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/* $OpenBSD: sti_sgc.c,v 1.38 2009/02/06 22:51:04 miod 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.
*
* 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 OR HIS RELATIVES 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 (sizeof(struct sti_dd) * 4)
#define STI_ID_FDDI 0x280b31af /* Medusa FDDI ROM id */
/* gecko optional graphics (these share the onboard's prom) */
const char sti_sgc_opt[] = { 0x17, 0x20, 0x30, 0x40, 0x70, 0xc0, 0xd0 };
extern struct cfdriver sti_cd;
int sti_sgc_probe(struct device *, void *, void *);
void sti_sgc_attach(struct device *, struct device *, void *);
paddr_t sti_sgc_getrom(int, struct confargs *);
struct cfattach sti_gedoens_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];
int i;
if (unit) {
i = -1;
if (ca->ca_type.iodc_sv_model == HPPA_FIO_GSGC)
for (i = sizeof(sti_sgc_opt); i-- &&
sti_sgc_opt[i] != ca->ca_type.iodc_revision; )
;
if (i < 0)
rom = 0;
}
if (rom < HPPA_IOBEGIN) {
if (ca->ca_naddrs > 0)
rom = ca->ca_addrs[0].addr;
else
rom = ca->ca_hpa;
}
return (rom);
}
int
sti_sgc_probe(struct device *parent, void *match, void *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;
/* due to the graphic nature of this program do probe only one */
if (cf->cf_unit > sti_cd.cd_ndevs)
return (0);
if (ca->ca_type.iodc_type != HPPA_TYPE_FIO)
return (0);
/* these need further checking for the graphics id */
if (ca->ca_type.iodc_sv_model != HPPA_FIO_GSGC &&
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;
}
}
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 (ca->ca_naddrs >= sizeof(ca->ca_addrs)/sizeof(ca->ca_addrs[0])) {
printf("sti: address list overflow\n");
return (0);
}
ca->ca_addrs[ca->ca_naddrs].addr = rom;
ca->ca_addrs[ca->ca_naddrs].size = sti_rom_size(ca->ca_iot, romh);
ca->ca_naddrs++;
if (!romunmapped)
bus_space_unmap(ca->ca_iot, romh, STI_ROMSIZE);
return (rv);
}
void
sti_sgc_attach(struct device *parent, struct device *self, void *aux)
{
struct sti_softc *sc = (void *)self;
struct confargs *ca = aux;
bus_space_handle_t romh;
paddr_t rom;
u_int32_t romlen;
int rv;
int i;
/* we stashed rom addr/len into the last slot during probe */
rom = ca->ca_addrs[ca->ca_naddrs - 1].addr;
romlen = ca->ca_addrs[ca->ca_naddrs - 1].size;
if ((rv = bus_space_map(ca->ca_iot, rom, romlen, 0, &romh))) {
if ((rom & HPPA_IOBEGIN) == HPPA_IOBEGIN)
romh = rom;
else {
printf (": cannot map rom space (%d)\n", rv);
return;
}
}
sc->bases[0] = romh;
for (i = 1; i < STI_REGION_MAX; i++)
sc->bases[i] = ca->ca_hpa;
#ifdef HP7300LC_CPU
/* PCXL2: enable accel i/o for this space */
if (cpu_type == hpcxl2)
eaio_l2(0x8 >> (((ca->ca_hpa >> 25) & 3) - 2));
#endif
if (ca->ca_hpa == (hppa_hpa_t)PAGE0->mem_cons.pz_hpa)
sc->sc_flags |= STI_CONSOLE;
if (sti_attach_common(sc, ca->ca_iot, ca->ca_iot, romh,
STI_CODEBASE_PA) == 0)
startuphook_establish(sti_end_attach, sc);
}
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