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/* $OpenBSD: pci_alphabook1.c,v 1.5 2017/09/08 05:36:51 deraadt Exp $ */
/* $NetBSD: pci_alphabook1.c,v 1.16 2012/02/06 02:14:15 matt 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.
*
* 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.
* All rights reserved.
*
* Authors: Jeffrey Hsu and Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <sys/param.h>
#include <sys/time.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <machine/intr.h>
#include <dev/isa/isavar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/ppbreg.h>
#include <alpha/pci/lcavar.h>
#include <alpha/pci/pci_alphabook1.h>
#include <alpha/pci/siovar.h>
#include "sio.h"
int dec_alphabook1_intr_map(struct pci_attach_args *,
pci_intr_handle_t *);
const char *dec_alphabook1_intr_string(void *, pci_intr_handle_t);
int dec_alphabook1_intr_line(void *, pci_intr_handle_t);
void *dec_alphabook1_intr_establish(void *, pci_intr_handle_t,
int, int (*func)(void *), void *, const char *);
void dec_alphabook1_intr_disestablish(void *, void *);
#define LCA_SIO_DEVICE 7 /* XXX */
void
pci_alphabook1_pickintr(struct lca_config *lcp)
{
bus_space_tag_t iot = &lcp->lc_iot;
pci_chipset_tag_t pc = &lcp->lc_pc;
pcireg_t sioclass;
int sioII;
/* XXX MAGIC NUMBER */
sioclass = pci_conf_read(pc, pci_make_tag(pc, 0, LCA_SIO_DEVICE, 0),
PCI_CLASS_REG);
sioII = (sioclass & 0xff) >= 3;
if (!sioII)
printf("WARNING: SIO NOT SIO II... NO BETS...\n");
pc->pc_intr_v = lcp;
pc->pc_intr_map = dec_alphabook1_intr_map;
pc->pc_intr_string = dec_alphabook1_intr_string;
pc->pc_intr_line = dec_alphabook1_intr_line;
pc->pc_intr_establish = dec_alphabook1_intr_establish;
pc->pc_intr_disestablish = dec_alphabook1_intr_disestablish;
/* Not supported on AlphaBook. */
pc->pc_pciide_compat_intr_establish = NULL;
#if NSIO
sio_intr_setup(pc, iot);
#else
panic("pci_alphabook1_pickintr: no I/O interrupt handler (no sio)");
#endif
}
int
dec_alphabook1_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
{
pcitag_t bustag = pa->pa_intrtag;
int buspin, device;
#ifdef notyet
if (pa->pa_bridgetag) {
buspin = PPB_INTERRUPT_SWIZZLE(pa->pa_rawintrpin,
pa->pa_device);
if (pa->pa_bridgeih[buspin - 1] == 0)
return 1;
*ihp = pa->pa_bridgeih[buspin - 1];
return 0;
}
#endif
buspin = pa->pa_intrpin;
pci_decompose_tag(pa->pa_pc, bustag, NULL, &device, NULL);
/*
* There are only two interrupting PCI devices on the AlphaBook:
* the SCSI and PCMCIA controllers. The other PCI device is the
* SIO, and there are no option slots available.
*
* NOTE! Apparently, there was a later AlphaBook which uses
* a different interrupt scheme, and has a built-in Tulip Ethernet
* interface! We do not handle that here!
*/
switch (device) {
case 6: /* NCR SCSI */
*ihp = 14;
return 0;
case 8: /* Cirrus CL-PD6729 */
*ihp = 15;
return 0;
default:
return 1;
}
}
const char *
dec_alphabook1_intr_string(void *lcv, pci_intr_handle_t ih)
{
return sio_intr_string(NULL /*XXX*/, ih);
}
int
dec_alphabook1_intr_line(void *lcv, pci_intr_handle_t ih)
{
return sio_intr_line(NULL /*XXX*/, ih);
}
void *
dec_alphabook1_intr_establish(void *lcv, pci_intr_handle_t ih,
int level, int (*func)(void *), void *arg, const char *name)
{
/*
* PCI interrupts on that platform are ISA interrupts in disguise,
* and are edge- rather than level-triggered.
*/
return sio_intr_establish(NULL /*XXX*/, ih, IST_EDGE, level, func,
arg, name);
}
void
dec_alphabook1_intr_disestablish(void *lcv, void *cookie)
{
sio_intr_disestablish(NULL /*XXX*/, cookie);
}
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