184 lines
5.8 KiB
C
184 lines
5.8 KiB
C
/* $NetBSD: sis85c503.c,v 1.3 2001/11/15 07:03:35 lukem Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1999 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
|
|
* NASA Ames Research Center.
|
|
*
|
|
* 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 the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``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 FOUNDATION OR CONTRIBUTORS
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1999, by UCHIYAMA Yasushi
|
|
* 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. The name of the developer 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 AND CONTRIBUTORS ``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 CONTRIBUTORS 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.
|
|
*/
|
|
|
|
/*
|
|
* Support for the SiS 85c503 PCI-ISA bridge interrupt controller.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: sis85c503.c,v 1.3 2001/11/15 07:03:35 lukem Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <machine/intr.h>
|
|
#include <machine/bus.h>
|
|
|
|
#include <dev/pci/pcivar.h>
|
|
#include <dev/pci/pcireg.h>
|
|
#include <dev/pci/pcidevs.h>
|
|
|
|
#include <i386/pci/pci_intr_fixup.h>
|
|
#include <i386/pci/sis85c503reg.h>
|
|
#include <i386/pci/piixvar.h>
|
|
|
|
int sis85c503_getclink __P((pciintr_icu_handle_t, int, int *));
|
|
int sis85c503_get_intr __P((pciintr_icu_handle_t, int, int *));
|
|
int sis85c503_set_intr __P((pciintr_icu_handle_t, int, int));
|
|
|
|
const struct pciintr_icu sis85c503_pci_icu = {
|
|
sis85c503_getclink,
|
|
sis85c503_get_intr,
|
|
sis85c503_set_intr,
|
|
piix_get_trigger,
|
|
piix_set_trigger,
|
|
};
|
|
|
|
int
|
|
sis85c503_init(pc, iot, tag, ptagp, phandp)
|
|
pci_chipset_tag_t pc;
|
|
bus_space_tag_t iot;
|
|
pcitag_t tag;
|
|
pciintr_icu_tag_t *ptagp;
|
|
pciintr_icu_handle_t *phandp;
|
|
{
|
|
|
|
if (piix_init(pc, iot, tag, ptagp, phandp) == 0) {
|
|
*ptagp = &sis85c503_pci_icu;
|
|
return (0);
|
|
}
|
|
|
|
return (1);
|
|
}
|
|
|
|
int
|
|
sis85c503_getclink(v, link, clinkp)
|
|
pciintr_icu_handle_t v;
|
|
int link, *clinkp;
|
|
{
|
|
|
|
/* Pattern 1: simple. */
|
|
if (link >= 1 && link <= 4) {
|
|
*clinkp = SIS85C503_CFG_PIRQ_REGSTART + link - 1;
|
|
return (0);
|
|
}
|
|
|
|
/* Pattern 2: configuration register offset */
|
|
if (link >= SIS85C503_CFG_PIRQ_REGSTART &&
|
|
link <= SIS85C503_CFG_PIRQ_REGEND) {
|
|
*clinkp = link;
|
|
return (0);
|
|
}
|
|
|
|
return (1);
|
|
}
|
|
|
|
int
|
|
sis85c503_get_intr(v, clink, irqp)
|
|
pciintr_icu_handle_t v;
|
|
int clink, *irqp;
|
|
{
|
|
struct piix_handle *ph = v;
|
|
pcireg_t reg;
|
|
|
|
if (SIS85C503_LEGAL_LINK(clink) == 0)
|
|
return (1);
|
|
|
|
reg = pci_conf_read(ph->ph_pc, ph->ph_tag,
|
|
SIS85C503_CFG_PIRQ_REGOFS(clink));
|
|
reg = SIS85C503_CFG_PIRQ_REG(reg, clink);
|
|
|
|
if (reg & SIS85C503_CFG_PIRQ_ROUTE_DISABLE)
|
|
*irqp = I386_PCI_INTERRUPT_LINE_NO_CONNECTION;
|
|
else
|
|
*irqp = reg & SIS85C503_CFG_PIRQ_INTR_MASK;
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
sis85c503_set_intr(v, clink, irq)
|
|
pciintr_icu_handle_t v;
|
|
int clink, irq;
|
|
{
|
|
struct piix_handle *ph = v;
|
|
int shift;
|
|
pcireg_t reg;
|
|
|
|
if (SIS85C503_LEGAL_LINK(clink) == 0 || SIS85C503_LEGAL_IRQ(irq) == 0)
|
|
return (1);
|
|
|
|
reg = pci_conf_read(ph->ph_pc, ph->ph_tag,
|
|
SIS85C503_CFG_PIRQ_REGOFS(clink));
|
|
shift = SIS85C503_CFG_PIRQ_SHIFT(clink);
|
|
reg &= ~((SIS85C503_CFG_PIRQ_ROUTE_DISABLE |
|
|
SIS85C503_CFG_PIRQ_INTR_MASK) << shift);
|
|
reg |= (irq << shift);
|
|
pci_conf_write(ph->ph_pc, ph->ph_tag, SIS85C503_CFG_PIRQ_REGOFS(clink),
|
|
reg);
|
|
|
|
return (0);
|
|
}
|