OsdInterrupt.c revision 1.1.2.2
1 1.1.2.2 tron /* $NetBSD: OsdInterrupt.c,v 1.1.2.2 2006/03/28 09:42:03 tron Exp $ */ 2 1.1.2.2 tron 3 1.1.2.2 tron /* 4 1.1.2.2 tron * Copyright 2001 Wasabi Systems, Inc. 5 1.1.2.2 tron * All rights reserved. 6 1.1.2.2 tron * 7 1.1.2.2 tron * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 1.1.2.2 tron * 9 1.1.2.2 tron * Redistribution and use in source and binary forms, with or without 10 1.1.2.2 tron * modification, are permitted provided that the following conditions 11 1.1.2.2 tron * are met: 12 1.1.2.2 tron * 1. Redistributions of source code must retain the above copyright 13 1.1.2.2 tron * notice, this list of conditions and the following disclaimer. 14 1.1.2.2 tron * 2. Redistributions in binary form must reproduce the above copyright 15 1.1.2.2 tron * notice, this list of conditions and the following disclaimer in the 16 1.1.2.2 tron * documentation and/or other materials provided with the distribution. 17 1.1.2.2 tron * 3. All advertising materials mentioning features or use of this software 18 1.1.2.2 tron * must display the following acknowledgement: 19 1.1.2.2 tron * This product includes software developed for the NetBSD Project by 20 1.1.2.2 tron * Wasabi Systems, Inc. 21 1.1.2.2 tron * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 1.1.2.2 tron * or promote products derived from this software without specific prior 23 1.1.2.2 tron * written permission. 24 1.1.2.2 tron * 25 1.1.2.2 tron * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 1.1.2.2 tron * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 1.1.2.2 tron * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 1.1.2.2 tron * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 1.1.2.2 tron * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 1.1.2.2 tron * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 1.1.2.2 tron * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 1.1.2.2 tron * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 1.1.2.2 tron * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 1.1.2.2 tron * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 1.1.2.2 tron * POSSIBILITY OF SUCH DAMAGE. 36 1.1.2.2 tron */ 37 1.1.2.2 tron 38 1.1.2.2 tron /* 39 1.1.2.2 tron * OS Services Layer 40 1.1.2.2 tron * 41 1.1.2.2 tron * 6.5: Interrupt Handling 42 1.1.2.2 tron */ 43 1.1.2.2 tron 44 1.1.2.2 tron #include <sys/cdefs.h> 45 1.1.2.2 tron __KERNEL_RCSID(0, "$NetBSD: OsdInterrupt.c,v 1.1.2.2 2006/03/28 09:42:03 tron Exp $"); 46 1.1.2.2 tron 47 1.1.2.2 tron #include <sys/param.h> 48 1.1.2.2 tron #include <sys/malloc.h> 49 1.1.2.2 tron #include <sys/lock.h> 50 1.1.2.2 tron #include <sys/queue.h> 51 1.1.2.2 tron 52 1.1.2.2 tron #include <dev/acpi/acpica.h> 53 1.1.2.2 tron 54 1.1.2.2 tron #include <machine/acpi_machdep.h> 55 1.1.2.2 tron 56 1.1.2.2 tron #define _COMPONENT ACPI_OS_SERVICES 57 1.1.2.2 tron ACPI_MODULE_NAME("INTERRUPT") 58 1.1.2.2 tron 59 1.1.2.2 tron MALLOC_DEFINE(M_ACPI, "acpi", "Advanced Configuration and Power Interface"); 60 1.1.2.2 tron 61 1.1.2.2 tron /* 62 1.1.2.2 tron * We're lucky -- ACPI uses the same convention for interrupt service 63 1.1.2.2 tron * routine return values at NetBSD does -- so we can just ask MD code 64 1.1.2.2 tron * to hook it up directly (ACPI interrupts are always level triggered 65 1.1.2.2 tron * and shareable, and return 0 for "not handled" and 1 for "handled"). 66 1.1.2.2 tron */ 67 1.1.2.2 tron 68 1.1.2.2 tron struct acpi_interrupt_handler { 69 1.1.2.2 tron LIST_ENTRY(acpi_interrupt_handler) aih_list; 70 1.1.2.2 tron UINT32 aih_intrnum; 71 1.1.2.2 tron ACPI_OSD_HANDLER aih_func; 72 1.1.2.2 tron void *aih_ih; 73 1.1.2.2 tron }; 74 1.1.2.2 tron 75 1.1.2.2 tron static LIST_HEAD(, acpi_interrupt_handler) acpi_interrupt_list = 76 1.1.2.2 tron LIST_HEAD_INITIALIZER(&acpi_interrupt_list); 77 1.1.2.2 tron static struct simplelock acpi_interrupt_list_slock = SIMPLELOCK_INITIALIZER; 78 1.1.2.2 tron 79 1.1.2.2 tron #define ACPI_INTERRUPT_LIST_LOCK(s) \ 80 1.1.2.2 tron do { \ 81 1.1.2.2 tron (s) = splhigh(); \ 82 1.1.2.2 tron simple_lock(&acpi_interrupt_list_slock); \ 83 1.1.2.2 tron } while (/*CONSTCOND*/0) 84 1.1.2.2 tron 85 1.1.2.2 tron #define ACPI_INTERRUPT_LIST_UNLOCK(s) \ 86 1.1.2.2 tron do { \ 87 1.1.2.2 tron simple_unlock(&acpi_interrupt_list_slock); \ 88 1.1.2.2 tron splx((s)); \ 89 1.1.2.2 tron } while (/*CONSTCOND*/0) 90 1.1.2.2 tron 91 1.1.2.2 tron /* 92 1.1.2.2 tron * AcpiOsInstallInterruptHandler: 93 1.1.2.2 tron * 94 1.1.2.2 tron * Install a handler for a hardware interrupt level. 95 1.1.2.2 tron */ 96 1.1.2.2 tron ACPI_STATUS 97 1.1.2.2 tron AcpiOsInstallInterruptHandler(UINT32 InterruptNumber, 98 1.1.2.2 tron ACPI_OSD_HANDLER ServiceRoutine, void *Context) 99 1.1.2.2 tron { 100 1.1.2.2 tron struct acpi_interrupt_handler *aih; 101 1.1.2.2 tron ACPI_STATUS rv; 102 1.1.2.2 tron int s; 103 1.1.2.2 tron 104 1.1.2.2 tron ACPI_FUNCTION_TRACE(__FUNCTION__); 105 1.1.2.2 tron 106 1.1.2.2 tron if (InterruptNumber < 0 || InterruptNumber > 255) 107 1.1.2.2 tron return_ACPI_STATUS(AE_BAD_PARAMETER); 108 1.1.2.2 tron if (ServiceRoutine == NULL) 109 1.1.2.2 tron return_ACPI_STATUS(AE_BAD_PARAMETER); 110 1.1.2.2 tron 111 1.1.2.2 tron aih = malloc(sizeof(*aih), M_ACPI, M_NOWAIT); 112 1.1.2.2 tron if (aih == NULL) 113 1.1.2.2 tron return_ACPI_STATUS(AE_NO_MEMORY); 114 1.1.2.2 tron 115 1.1.2.2 tron aih->aih_intrnum = InterruptNumber; 116 1.1.2.2 tron aih->aih_func = ServiceRoutine; 117 1.1.2.2 tron 118 1.1.2.2 tron rv = acpi_md_OsInstallInterruptHandler(InterruptNumber, 119 1.1.2.2 tron ServiceRoutine, Context, &aih->aih_ih); 120 1.1.2.2 tron if (rv == AE_OK) { 121 1.1.2.2 tron ACPI_INTERRUPT_LIST_LOCK(s); 122 1.1.2.2 tron LIST_INSERT_HEAD(&acpi_interrupt_list, aih, aih_list); 123 1.1.2.2 tron ACPI_INTERRUPT_LIST_UNLOCK(s); 124 1.1.2.2 tron } else 125 1.1.2.2 tron free(aih, M_ACPI); 126 1.1.2.2 tron 127 1.1.2.2 tron return_ACPI_STATUS(rv); 128 1.1.2.2 tron } 129 1.1.2.2 tron 130 1.1.2.2 tron /* 131 1.1.2.2 tron * AcpiOsRemoveInterruptHandler: 132 1.1.2.2 tron * 133 1.1.2.2 tron * Remove an interrupt handler. 134 1.1.2.2 tron */ 135 1.1.2.2 tron ACPI_STATUS 136 1.1.2.2 tron AcpiOsRemoveInterruptHandler(UINT32 InterruptNumber, 137 1.1.2.2 tron ACPI_OSD_HANDLER ServiceRoutine) 138 1.1.2.2 tron { 139 1.1.2.2 tron struct acpi_interrupt_handler *aih; 140 1.1.2.2 tron int s; 141 1.1.2.2 tron 142 1.1.2.2 tron ACPI_FUNCTION_TRACE(__FUNCTION__); 143 1.1.2.2 tron 144 1.1.2.2 tron if (InterruptNumber < 0 || InterruptNumber > 255) 145 1.1.2.2 tron return_ACPI_STATUS(AE_BAD_PARAMETER); 146 1.1.2.2 tron if (ServiceRoutine == NULL) 147 1.1.2.2 tron return_ACPI_STATUS(AE_BAD_PARAMETER); 148 1.1.2.2 tron 149 1.1.2.2 tron ACPI_INTERRUPT_LIST_LOCK(s); 150 1.1.2.2 tron LIST_FOREACH(aih, &acpi_interrupt_list, aih_list) { 151 1.1.2.2 tron if (aih->aih_intrnum == InterruptNumber && 152 1.1.2.2 tron aih->aih_func == ServiceRoutine) { 153 1.1.2.2 tron LIST_REMOVE(aih, aih_list); 154 1.1.2.2 tron ACPI_INTERRUPT_LIST_UNLOCK(s); 155 1.1.2.2 tron acpi_md_OsRemoveInterruptHandler(aih->aih_ih); 156 1.1.2.2 tron free(aih, M_ACPI); 157 1.1.2.2 tron return_ACPI_STATUS(AE_OK); 158 1.1.2.2 tron } 159 1.1.2.2 tron } 160 1.1.2.2 tron ACPI_INTERRUPT_LIST_UNLOCK(s); 161 1.1.2.2 tron return_ACPI_STATUS(AE_NOT_EXIST); 162 1.1.2.2 tron } 163
Indexes created Tue Oct 14 06:10:07 GMT 2025