mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
121 lines
3.6 KiB
C
121 lines
3.6 KiB
C
/*-
|
|
* Copyright (c) 1999, 2000 Matthew R. Green
|
|
* Copyright (c) 2001, 2003 Thomas Moestl <tmm@FreeBSD.org>
|
|
* 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. 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 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.
|
|
*
|
|
* from: NetBSD: ebus.c,v 1.26 2001/09/10 16:27:53 eeh Exp
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Helper functions which can be used in both ISA and EBus code.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <dev/ofw/openfirm.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
#include <machine/ofw_bus.h>
|
|
|
|
#include <sparc64/pci/ofw_pci.h>
|
|
#include <sparc64/isa/ofw_isa.h>
|
|
|
|
#include "pcib_if.h"
|
|
|
|
int
|
|
ofw_isa_range_restype(struct isa_ranges *range)
|
|
{
|
|
int ps = ISA_RANGE_PS(range);
|
|
|
|
switch (ps) {
|
|
case PCI_CS_IO:
|
|
return (SYS_RES_IOPORT);
|
|
case PCI_CS_MEM32:
|
|
return (SYS_RES_MEMORY);
|
|
default:
|
|
panic("ofw_isa_range_restype: illegal space %x", ps);
|
|
}
|
|
|
|
}
|
|
|
|
/* XXX: this only supports PCI as parent bus right now. */
|
|
int
|
|
ofw_isa_range_map(struct isa_ranges *range, int nrange, u_long *start,
|
|
u_long *end, int *which)
|
|
{
|
|
struct isa_ranges *r;
|
|
u_int64_t offs, cstart, cend;
|
|
int i;
|
|
|
|
for (i = 0; i < nrange; i++) {
|
|
r = &range[i];
|
|
cstart = ISA_RANGE_CHILD(r);
|
|
cend = cstart + r->size;
|
|
if (*start < cstart || *start > cend)
|
|
continue;
|
|
if (*end < cstart || *end > cend) {
|
|
panic("ofw_isa_map_iorange: iorange crosses pci "
|
|
"ranges (%#lx not in %#lx - %#lx)", *end, cstart,
|
|
cend);
|
|
}
|
|
offs = ISA_RANGE_PHYS(r);
|
|
*start = *start + offs - cstart;
|
|
*end = *end + offs - cstart;
|
|
if (which != NULL)
|
|
*which = i;
|
|
return (ofw_isa_range_restype(r));
|
|
}
|
|
panic("ofw_isa_map_iorange: could not map range %#lx - %#lx",
|
|
*start, *end);
|
|
}
|
|
|
|
ofw_pci_intr_t
|
|
ofw_isa_route_intr(device_t bridge, phandle_t node, struct ofw_bus_iinfo *ii,
|
|
ofw_isa_intr_t intr)
|
|
{
|
|
struct isa_regs reg;
|
|
u_int8_t maskbuf[sizeof(reg) + sizeof(intr)];
|
|
device_t pbridge;
|
|
ofw_isa_intr_t mintr;
|
|
|
|
pbridge = device_get_parent(device_get_parent(bridge));
|
|
/*
|
|
* If we get a match from using the map, the resulting INO is
|
|
* fully specified, so we may not continue to map.
|
|
*/
|
|
if (!ofw_bus_lookup_imap(node, ii, ®, sizeof(reg),
|
|
&intr, sizeof(intr), &mintr, sizeof(mintr), maskbuf)) {
|
|
/* Try routing at the parent bridge. */
|
|
mintr = PCIB_ROUTE_INTERRUPT(pbridge, bridge, intr);
|
|
}
|
|
return (mintr);
|
|
}
|