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/* $OpenBSD: fhc.c,v 1.1 2004/09/22 21:44:45 jason Exp $ */
/*
* Copyright (c) 2004 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.
*
* 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.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/conf.h>
#include <sys/timeout.h>
#include <sys/malloc.h>
#include <machine/bus.h>
#include <machine/autoconf.h>
#include <machine/openfirm.h>
#include <sparc64/dev/fhcvar.h>
struct cfdriver fhc_cd = {
NULL, "fhc", DV_DULL
};
int fhc_print(void *, const char *);
bus_space_tag_t fhc_alloc_bus_tag(struct fhc_softc *);
int _fhc_bus_map(bus_space_tag_t, bus_space_tag_t, bus_addr_t, bus_size_t,
int, bus_space_handle_t *);
void
fhc_attach(struct fhc_softc *sc)
{
int node0, node;
printf(": %s\n", getpropstring(sc->sc_node, "board-model"));
sc->sc_cbt = fhc_alloc_bus_tag(sc);
getprop(sc->sc_node, "ranges", sizeof(struct fhc_range),
&sc->sc_nrange, (void **)&sc->sc_range);
#if 0
for (node = 0; node < sc->sc_nrange; node++)
printf("%d: cs %08x co %08x ps %08x po %08x sz %08x\n",
node, sc->sc_range[node].cspace,
sc->sc_range[node].coffset, sc->sc_range[node].pspace,
sc->sc_range[node].poffset, sc->sc_range[node].size);
#endif
node0 = firstchild(sc->sc_node);
for (node = node0; node; node = nextsibling(node)) {
struct fhc_attach_args fa;
bzero(&fa, sizeof(fa));
fa.fa_node = node;
fa.fa_bustag = sc->sc_cbt;
if (fhc_get_string(fa.fa_node, "name", &fa.fa_name)) {
printf("can't fetch name for node 0x%x\n", node);
continue;
}
getprop(node, "reg", sizeof(struct fhc_reg),
&fa.fa_nreg, (void **)&fa.fa_reg);
#if 0
printf("%s registers:\n", fa.fa_name);
for (i = 0; i < fa.fa_nreg; i++) {
printf(" %d slot 0x%x offset 0x%x size 0x%x\n", i,
fa.fa_reg[i].fbr_slot,
fa.fa_reg[i].fbr_offset,
fa.fa_reg[i].fbr_size);
}
(void)config_found(&sc->sc_dv, (void *)&fa, fhc_print);
#endif
if (fa.fa_name != NULL)
free(fa.fa_name, M_DEVBUF);
if (fa.fa_reg != NULL)
free(fa.fa_reg, M_DEVBUF);
}
}
int
fhc_print(void *args, const char *busname)
{
struct fhc_attach_args *fa = args;
char *class;
if (busname != NULL) {
printf("%s at %s", fa->fa_name, busname);
class = getpropstring(fa->fa_node, "device_type");
if (*class != '\0')
printf(" class %s", class);
}
return (UNCONF);
}
int
fhc_get_string(int node, char *name, char **buf)
{
int len;
len = getproplen(node, name);
if (len < 0)
return (len);
*buf = (char *)malloc(len + 1, M_DEVBUF, M_NOWAIT);
if (buf == NULL)
return (-1);
if (len != 0)
getpropstringA(node, name, *buf);
(*buf)[len] = '\0';
return (0);
}
bus_space_tag_t
fhc_alloc_bus_tag(struct fhc_softc *sc)
{
struct sparc_bus_space_tag *bt;
bt = malloc(sizeof(*bt), M_DEVBUF, M_NOWAIT);
if (bt == NULL)
panic("fhc: couldn't alloc bus tag");
bzero(bt, sizeof(*bt));
snprintf(bt->name, sizeof(bt->name), "%s", sc->sc_dv.dv_xname);
bt->cookie = sc;
bt->parent = sc->sc_bt;
bt->asi = bt->parent->asi;
bt->sasi = bt->parent->sasi;
bt->sparc_bus_map = _fhc_bus_map;
/* XXX bt->sparc_bus_mmap = fhc_bus_mmap; */
/* XXX bt->sparc_intr_establish = upa_intr_establish; */
return (bt);
}
int
_fhc_bus_map(bus_space_tag_t t, bus_space_tag_t t0, bus_addr_t addr,
bus_size_t size, int flags, bus_space_handle_t *hp)
{
struct fhc_softc *sc = t->cookie;
int64_t slot = BUS_ADDR_IOSPACE(addr);
int64_t offset = BUS_ADDR_PADDR(addr);
int i;
if (t->parent == NULL || t->parent->sparc_bus_map == NULL) {
printf("\n_fhc_bus_map: invalid parent");
return (EINVAL);
}
if (flags & BUS_SPACE_MAP_PROMADDRESS)
return ((*t->parent->sparc_bus_map)(t, t0, addr,
size, flags, hp));
for (i = 0; i < sc->sc_nrange; i++) {
bus_addr_t paddr;
if (sc->sc_range[i].cspace != slot)
continue;
paddr = offset - sc->sc_range[i].coffset;
paddr += sc->sc_range[i].poffset;
paddr |= ((bus_addr_t)sc->sc_range[i].pspace << 32);
printf("[fhc %llx]", (unsigned long long)paddr);
return ((*t->parent->sparc_bus_map)(t, t0, paddr,
size, flags, hp));
}
return (EINVAL);
}
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