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First cut at PCI IDE compat interrupt support for the EB164 systype. 

PCI IDE is found on the AlphaPC 164SX's Cypress PCI-ISA bridge.
This commit is contained in:
thorpej 1998-04-18 01:18:37 +00:00
parent 574b87a792
commit 4fc79b8fd3
1 changed files with 76 additions and 2 deletions
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78
sys/arch/alpha/pci/pci_eb164.c
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@ -1,4 +1,41 @@
/* $NetBSD: pci_eb164.c,v 1.13 1998/04/16 19:50:55 thorpej Exp $ */
/* $NetBSD: pci_eb164.c,v 1.14 1998/04/18 01:18:37 thorpej Exp $ */
/*-
* Copyright (c) 1998 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) 1995, 1996 Carnegie-Mellon University.
@ -29,7 +66,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: pci_eb164.c,v 1.13 1998/04/16 19:50:55 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: pci_eb164.c,v 1.14 1998/04/18 01:18:37 thorpej Exp $");
#include <sys/types.h>
#include <sys/param.h>
@ -46,6 +83,8 @@ __KERNEL_RCSID(0, "$NetBSD: pci_eb164.c,v 1.13 1998/04/16 19:50:55 thorpej Exp $
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pciidereg.h>
#include <dev/pci/pciidevar.h>
#include <alpha/pci/ciareg.h>
#include <alpha/pci/ciavar.h>
@ -68,6 +107,9 @@ void *dec_eb164_intr_establish __P((void *, pci_intr_handle_t,
int, int (*func)(void *), void *));
void dec_eb164_intr_disestablish __P((void *, void *));
void *dec_eb164_pciide_compat_intr_establish __P((void *, struct device *,
struct pci_attach_args *, int, int (*)(void *), void *));
#define EB164_SIO_IRQ 4
#define EB164_MAX_IRQ 24
#define PCI_STRAY_MAX 5
@ -98,6 +140,9 @@ pci_eb164_pickintr(ccp)
pc->pc_intr_establish = dec_eb164_intr_establish;
pc->pc_intr_disestablish = dec_eb164_intr_disestablish;
pc->pc_pciide_compat_intr_establish =
dec_eb164_pciide_compat_intr_establish;
eb164_intrgate_iot = iot;
if (bus_space_map(eb164_intrgate_iot, 0x804, 3, 0,
&eb164_intrgate_ioh) != 0)
@ -255,6 +300,35 @@ dec_eb164_intr_disestablish(ccv, cookie)
panic("dec_eb164_intr_disestablish not implemented"); /* XXX */
}
void *
dec_eb164_pciide_compat_intr_establish(v, dev, pa, chan, func, arg)
void *v;
struct device *dev;
struct pci_attach_args *pa;
int chan;
int (*func) __P((void *));
void *arg;
{
pci_chipset_tag_t pc = pa->pa_pc;
void *cookie = NULL;
int bus, irq;
alpha_pci_decompose_tag(pc, pa->pa_tag, &bus, NULL, NULL);
/*
* If this isn't PCI bus #0, all bets are off.
*/
if (bus != 0)
return (NULL);
irq = PCIIDE_COMPAT_IRQ(chan);
#if NSIO
cookie = sio_intr_establish(NULL /*XXX*/, irq, IST_EDGE, IPL_BIO,
func, arg);
#endif
return (cookie);
}
void
eb164_iointr(framep, vec)
void *framep;