236 lines
6.8 KiB
C
236 lines
6.8 KiB
C
/* $NetBSD: pci_alphabook1.c,v 1.7 2001/07/27 00:25:20 thorpej Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Authors: Jeffrey Hsu and Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
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__KERNEL_RCSID(0, "$NetBSD: pci_alphabook1.c,v 1.7 2001/07/27 00:25:20 thorpej Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/systm.h>
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#include <sys/errno.h>
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#include <sys/device.h>
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#include <uvm/uvm_extern.h>
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#include <machine/autoconf.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/isa/isavar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <alpha/pci/lcavar.h>
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#include <alpha/pci/pci_alphabook1.h>
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#include <alpha/pci/siovar.h>
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#include <alpha/pci/sioreg.h>
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#include "sio.h"
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int dec_alphabook1_intr_map __P((struct pci_attach_args *, pci_intr_handle_t *));
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const char *dec_alphabook1_intr_string __P((void *, pci_intr_handle_t));
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const struct evcnt *dec_alphabook1_intr_evcnt __P((void *, pci_intr_handle_t));
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void *dec_alphabook1_intr_establish __P((void *, pci_intr_handle_t,
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int, int (*func)(void *), void *));
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void dec_alphabook1_intr_disestablish __P((void *, void *));
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#define LCA_SIO_DEVICE 7 /* XXX */
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void
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pci_alphabook1_pickintr(lcp)
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struct lca_config *lcp;
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{
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bus_space_tag_t iot = &lcp->lc_iot;
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pci_chipset_tag_t pc = &lcp->lc_pc;
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pcireg_t sioclass;
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int sioII;
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/* XXX MAGIC NUMBER */
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sioclass = pci_conf_read(pc, pci_make_tag(pc, 0, LCA_SIO_DEVICE, 0),
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PCI_CLASS_REG);
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sioII = (sioclass & 0xff) >= 3;
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if (!sioII)
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printf("WARNING: SIO NOT SIO II... NO BETS...\n");
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pc->pc_intr_v = lcp;
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pc->pc_intr_map = dec_alphabook1_intr_map;
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pc->pc_intr_string = dec_alphabook1_intr_string;
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pc->pc_intr_evcnt = dec_alphabook1_intr_evcnt;
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pc->pc_intr_establish = dec_alphabook1_intr_establish;
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pc->pc_intr_disestablish = dec_alphabook1_intr_disestablish;
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/* Not supported on AlphaBook. */
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pc->pc_pciide_compat_intr_establish = NULL;
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#if NSIO
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sio_intr_setup(pc, iot);
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#else
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panic("pci_alphabook1_pickintr: no I/O interrupt handler (no sio)");
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#endif
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}
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int
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dec_alphabook1_intr_map(pa, ihp)
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struct pci_attach_args *pa;
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pci_intr_handle_t *ihp;
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{
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pcitag_t bustag = pa->pa_intrtag;
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int buspin = pa->pa_intrpin;
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pci_chipset_tag_t pc = pa->pa_pc;
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int device, irq;
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if (buspin == 0) {
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/* No IRQ used. */
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return 1;
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}
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if (buspin > 4) {
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printf("dec_alphabook1_intr_map: bad interrupt pin %d\n",
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buspin);
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return 1;
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}
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alpha_pci_decompose_tag(pc, bustag, NULL, &device, NULL);
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/*
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* There is only one interrupting PCI device on the AlphaBook: an
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* NCR SCSI at device 6. Devices 7 and 8 are the SIO and a
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* Cirrus PD6729 PCMCIA controller. There are no option slots
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* available.
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*
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* NOTE! Apparently, there was a later AlphaBook which uses
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* a different interrupt scheme, and has a built-in Tulip Ethernet
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* interface! We do not handle that here!
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*/
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switch (device) {
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case 6: /* NCR SCSI */
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irq = 14;
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break;
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default:
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printf("dec_alphabook1_intr_map: weird device number %d\n",
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device);
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return 1;
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}
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*ihp = irq;
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return (0);
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}
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const char *
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dec_alphabook1_intr_string(lcv, ih)
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void *lcv;
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pci_intr_handle_t ih;
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{
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#if 0
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struct lca_config *lcp = lcv;
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#endif
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return sio_intr_string(NULL /*XXX*/, ih);
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}
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const struct evcnt *
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dec_alphabook1_intr_evcnt(lcv, ih)
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void *lcv;
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pci_intr_handle_t ih;
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{
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#if 0
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struct lca_config *lcp = lcv;
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#endif
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return sio_intr_evcnt(NULL /*XXX*/, ih);
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}
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void *
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dec_alphabook1_intr_establish(lcv, ih, level, func, arg)
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void *lcv, *arg;
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pci_intr_handle_t ih;
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int level;
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int (*func) __P((void *));
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{
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#if 0
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struct lca_config *lcp = lcv;
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#endif
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return sio_intr_establish(NULL /*XXX*/, ih, IST_LEVEL, level, func,
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arg);
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}
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void
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dec_alphabook1_intr_disestablish(lcv, cookie)
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void *lcv, *cookie;
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{
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#if 0
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struct lca_config *lcp = lcv;
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#endif
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sio_intr_disestablish(NULL /*XXX*/, cookie);
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}
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