NetBSD-5.0.2/sys/arch/hp700/dev/sti_sgc.c
/* $NetBSD: sti_sgc.c,v 1.13 2008/03/29 15:59:26 skrll Exp $ */
/* $OpenBSD: sti_sgc.c,v 1.21 2003/12/22 23:39:06 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: sti_sgc.c,v 1.13 2008/03/29 15:59:26 skrll Exp $");
#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 <hp700/dev/cpudevs.h>
#include <hp700/hp700/machdep.h>
#define STI_ROMSIZE (sizeof(struct sti_dd) * 4)
#define STI_ID_FDDI 0x280b31af /* Medusa FDDI ROM id */
/* gecko optional graphics */
#define STI_GOPT1_REV 0x17
#define STI_GOPT2_REV 0x70
#define STI_GOPT3_REV 0xd0
#define STI_GOPT4_REV 0x00
#define STI_GOPT5_REV 0x20
#define STI_GOPT6_REV 0x40
#define STI_GOPT7_REV 0x30
/* internal EG */
#define STI_INEG_REV 0x60
#define STI_INEG_PROM 0xf0011000
int sti_sgc_probe(struct device *, struct cfdata *, void *);
void sti_sgc_attach(struct device *, struct device *, void *);
CFATTACH_DECL(sti_gedoens, sizeof(struct sti_softc), sti_sgc_probe, sti_sgc_attach,
NULL, NULL);
paddr_t sti_sgc_getrom(struct confargs *);
/*
* Locate STI ROM.
* On some machines it may not be part of the HPA space.
*/
paddr_t
sti_sgc_getrom(struct confargs *ca)
{
paddr_t rom;
int pagezero_cookie;
rom = ca->ca_hpa;
if (ca->ca_type.iodc_sv_model != HPPA_FIO_GSGC) {
return rom;
}
switch (ca->ca_type.iodc_revision) {
case STI_GOPT1_REV:
case STI_GOPT2_REV:
case STI_GOPT3_REV:
case STI_GOPT4_REV:
case STI_GOPT5_REV:
case STI_GOPT6_REV:
case STI_GOPT7_REV:
/* these share the onboard's prom */
pagezero_cookie = hp700_pagezero_map();
rom = PAGE0->pd_resv2[1];
hp700_pagezero_unmap(pagezero_cookie);
break;
case STI_INEG_REV:
rom = STI_INEG_PROM;
break;
}
return rom;
}
int
sti_sgc_probe(struct device *parent, struct cfdata *cf, void *aux)
{
struct confargs *ca = aux;
bus_space_handle_t romh;
paddr_t rom;
u_int32_t id, romend;
u_char devtype;
int rv = 0, romunmapped = 0;
if (ca->ca_type.iodc_type != HPPA_TYPE_FIO)
return (0);
/* these need futher 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(ca);
#ifdef STIDEBUG
printf ("sti: hpa=%x, rom=%x\n", (uint)ca->ca_hpa, (uint)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, STI_DEV4_DD_GRID);
romend = bus_space_read_4(ca->ca_iot, romh, STI_DEV4_DD_ROMEND);
break;
case STI_DEVTYPE1:
id = (bus_space_read_1(ca->ca_iot, romh, STI_DEV1_DD_GRID
+ 3) << 24) |
(bus_space_read_1(ca->ca_iot, romh, STI_DEV1_DD_GRID
+ 7) << 16) |
(bus_space_read_1(ca->ca_iot, romh, STI_DEV1_DD_GRID
+ 11) << 8) |
(bus_space_read_1(ca->ca_iot, romh, STI_DEV1_DD_GRID
+ 15));
romend = (bus_space_read_1(ca->ca_iot, romh, STI_DEV1_DD_ROMEND
+ 3) << 24) |
(bus_space_read_1(ca->ca_iot, romh, STI_DEV1_DD_ROMEND
+ 7) << 16) |
(bus_space_read_1(ca->ca_iot, romh, STI_DEV1_DD_ROMEND
+ 11) << 8) |
(bus_space_read_1(ca->ca_iot, romh, STI_DEV1_DD_ROMEND
+ 15));
break;
default:
#ifdef STIDEBUG
printf("sti: unknown type (%x)\n", devtype);
#endif
rv = 0;
romend = 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 = round_page(romend);
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;
paddr_t rom;
u_int32_t romlen;
int rv;
int pagezero_cookie;
pagezero_cookie = hp700_pagezero_map();
sc->memt = sc->iot = ca->ca_iot;
sc->base = ca->ca_hpa;
/* 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, &sc->romh))) {
if ((rom & HPPA_IOBEGIN) == HPPA_IOBEGIN)
sc->romh = rom;
else {
printf (": cannot map rom space (%d)\n", rv);
return;
}
}
#ifdef HP7300LC_CPU
/*
* PCXL2: enable accel I/O for this space, see PCX-L2 ERS "ACCEL_IO".
* "pcxl2_ers.{ps,pdf}", (section / chapter . rel. page / abs. page)
* 8.7.4 / 8-12 / 92, 11.3.14 / 11-14 / 122 and 14.8 / 14-5 / 203.
*/
if (strcmp(hppa_cpu_info->hppa_cpu_info_chip_type, "PCX-L2") == 0
&& ca->ca_hpa >= PCXL2_ACCEL_IO_START
&& ca->ca_hpa <= PCXL2_ACCEL_IO_END)
eaio_l2(PCXL2_ACCEL_IO_ADDR2MASK(ca->ca_hpa));
#endif /* HP7300LC_CPU */
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;
hp700_pagezero_unmap(pagezero_cookie);
sti_attach_common(sc);
}