1168404Spjd/* $NetBSD: pci_up1000.c,v 1.17 2021/06/19 16:59:07 thorpej Exp $ */ 2168404Spjd 3168404Spjd/*- 4168404Spjd * Copyright (c) 2000 The NetBSD Foundation, Inc. 5168404Spjd * All rights reserved. 6168792Sru * 7168404Spjd * This code is derived from software contributed to The NetBSD Foundation 8168792Sru * by Jason R. Thorpe. 9168404Spjd * 10168792Sru * Redistribution and use in source and binary forms, with or without 11168404Spjd * modification, are permitted provided that the following conditions 12168792Sru * are met: 13168404Spjd * 1. Redistributions of source code must retain the above copyright 14168792Sru * notice, this list of conditions and the following disclaimer. 15168404Spjd * 2. Redistributions in binary form must reproduce the above copyright 16168792Sru * notice, this list of conditions and the following disclaimer in the 17168404Spjd * documentation and/or other materials provided with the distribution. 18168792Sru * 19168792Sru * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20168792Sru * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21168792Sru * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22168792Sru * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23168404Spjd * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24168792Sru * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25168792Sru * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26168404Spjd * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27168792Sru * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28168792Sru * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29168792Sru * POSSIBILITY OF SUCH DAMAGE. 30168792Sru */ 31168792Sru 32168792Sru#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 33168792Sru 34168792Sru__KERNEL_RCSID(0, "$NetBSD: pci_up1000.c,v 1.17 2021/06/19 16:59:07 thorpej Exp $"); 35168792Sru 36168792Sru#include <sys/types.h> 37168792Sru#include <sys/param.h> 38168404Spjd#include <sys/time.h> 39168792Sru#include <sys/systm.h> 40168792Sru#include <sys/errno.h> 41168404Spjd#include <sys/device.h> 42168404Spjd 43168404Spjd#include <machine/autoconf.h> 44168404Spjd#include <machine/rpb.h> 45168404Spjd#include <sys/bus.h> 46#include <machine/intr.h> 47 48#include <dev/isa/isavar.h> 49 50#include <dev/pci/pcireg.h> 51#include <dev/pci/pcivar.h> 52#include <dev/pci/pciidereg.h> 53#include <dev/pci/pciidevar.h> 54 55#include <alpha/pci/irongatevar.h> 56 57#include <alpha/pci/siovar.h> 58#include <alpha/pci/sioreg.h> 59 60#include "sio.h" 61 62static int api_up1000_intr_map(const struct pci_attach_args *, 63 pci_intr_handle_t *); 64 65static void 66pci_up1000_pickintr(void *core, bus_space_tag_t iot, bus_space_tag_t memt, 67 pci_chipset_tag_t pc) 68{ 69#if NSIO 70 pc->pc_intr_v = core; 71 pc->pc_intr_map = api_up1000_intr_map; 72 pc->pc_intr_string = sio_pci_intr_string; 73 pc->pc_intr_evcnt = sio_pci_intr_evcnt; 74 pc->pc_intr_establish = sio_pci_intr_establish; 75 pc->pc_intr_disestablish = sio_pci_intr_disestablish; 76 77 pc->pc_pciide_compat_intr_establish = 78 sio_pciide_compat_intr_establish; 79 80 sio_intr_setup(pc, iot); 81#else 82 panic("pci_up1000_pickintr: no I/O interrupt handler (no sio)"); 83#endif 84} 85ALPHA_PCI_INTR_INIT(ST_API_NAUTILUS, pci_up1000_pickintr) 86 87static int 88api_up1000_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp) 89{ 90 pci_chipset_tag_t pc = pa->pa_pc; 91 int buspin = pa->pa_intrpin; 92 int bustag = pa->pa_intrtag; 93 int line = pa->pa_intrline; 94 int bus, device, function; 95 96 if (buspin == 0) { 97 /* No IRQ used. */ 98 return 1; 99 } 100 if (buspin < 0 || buspin > 4) { 101 printf("%s: bad interrupt pin %d\n", __func__, buspin); 102 return 1; 103 } 104 105 pci_decompose_tag(pc, bustag, &bus, &device, &function); 106 107 /* 108 * The console places the interrupt mapping in the "line" value. 109 * A value of (char)-1 indicates there is no mapping. 110 */ 111 if (line == 0xff) { 112 printf("%s: no mapping for %d/%d/%d\n", __func__, 113 bus, device, function); 114 return (1); 115 } 116 117 if (line < 0 || line > 15) { 118 printf("%s: bad ISA IRQ (%d)\n", __func__, line); 119 return (1); 120 } 121 if (line == 2) { 122 printf("%s: changed IRQ 2 to IRQ 9\n", __func__); 123 line = 9; 124 } 125 126 alpha_pci_intr_handle_init(ihp, line, 0); 127 return (0); 128} 129