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/*
* Copyright (c) 1999, 2000 Matthew R. Green
* Copyright (c) 2001 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/bus.h>
#include <ofw/openfirm.h>
#include <ofw/ofw_pci.h>
#include <machine/resource.h>
#include <machine/ofw_bus.h>
#include <sparc64/isa/ofw_isa.h>
#include <sparc64/pci/ofw_pci.h>
/*
* This applies only for an ISA/EBus with an own interrupt-map property.
*/
int
ofw_isa_map_intr(struct isa_imap *imap, int nimap, struct isa_imap_msk *imapmsk,
int intr, struct isa_regs *regs, int nregs)
{
char regm[8];
return (ofw_bus_route_intr(intr, regs, sizeof(*regs), 8, nregs,
imap, nimap, imapmsk, regm));
}
/* XXX: this only supports PCI as parent bus right now. */
int
ofw_isa_map_iorange(struct isa_ranges *range, int nrange, u_long *start,
u_long *end)
{
u_int64_t offs, cstart, cend;
int i;
for (i = 0; i < nrange; i++) {
cstart = ((u_int64_t)range[i].child_hi << 32) |
range[i].child_lo;
cend = cstart + range[i].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 = (((u_int64_t)range[i].phys_mid << 32) |
range[i].phys_lo);
*start = *start + offs - cstart;
*end = *end + offs - cstart;
/* Isolate address space and find the right tag */
switch (ISA_RANGE_PS(&range[i])) {
case PCI_CS_IO:
return (SYS_RES_IOPORT);
case PCI_CS_MEM32:
return (SYS_RES_MEMORY);
default:
panic("ofw_isa_map_iorange: illegal space %x",
ISA_RANGE_PS(&range[i]));
break;
}
}
panic("ofw_isa_map_iorange: could not map range %#lx - %#lx",
*start, *end);
}
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