OsdInterrupt.c revision 79386
167760Smsmith/*- 267760Smsmith * Copyright (c) 2000 Michael Smith 367760Smsmith * Copyright (c) 2000 BSDi 467760Smsmith * All rights reserved. 567760Smsmith * 667760Smsmith * Redistribution and use in source and binary forms, with or without 767760Smsmith * modification, are permitted provided that the following conditions 867760Smsmith * are met: 967760Smsmith * 1. Redistributions of source code must retain the above copyright 1067760Smsmith * notice, this list of conditions and the following disclaimer. 1167760Smsmith * 2. Redistributions in binary form must reproduce the above copyright 1267760Smsmith * notice, this list of conditions and the following disclaimer in the 1367760Smsmith * documentation and/or other materials provided with the distribution. 1467760Smsmith * 1567760Smsmith * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1667760Smsmith * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1767760Smsmith * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1867760Smsmith * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1967760Smsmith * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2067760Smsmith * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2167760Smsmith * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2267760Smsmith * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2367760Smsmith * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2467760Smsmith * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2567760Smsmith * SUCH DAMAGE. 2667760Smsmith * 2767760Smsmith * $FreeBSD: head/sys/dev/acpica/Osd/OsdInterrupt.c 79386 2001-07-07 10:18:10Z msmith $ 2867760Smsmith */ 2967760Smsmith 3067760Smsmith/* 3167760Smsmith * 6.5 : Interrupt handling 3267760Smsmith */ 3367760Smsmith 3467760Smsmith#include "acpi.h" 3567760Smsmith 3667760Smsmith#include <sys/bus.h> 3767760Smsmith#include <machine/resource.h> 3867760Smsmith#include <machine/bus.h> 3967760Smsmith#include <sys/rman.h> 4067760Smsmith 4167760Smsmith#include <dev/acpica/acpivar.h> 4267760Smsmith 4377432Smsmith#define _COMPONENT ACPI_OS_SERVICES 4471875SmsmithMODULE_NAME("INTERRUPT") 4571875Smsmith 4679000Smsmithstatic void InterruptWrapper(void *arg); 4779000Smsmithstatic OSD_HANDLER InterruptHandler; 4879000Smsmith 4967760Smsmith/* 5067760Smsmith * XXX this does not correctly free resources in the case of partically successful 5167760Smsmith * attachment. 5267760Smsmith */ 5367760SmsmithACPI_STATUS 5467760SmsmithAcpiOsInstallInterruptHandler(UINT32 InterruptNumber, OSD_HANDLER ServiceRoutine, void *Context) 5567760Smsmith{ 5667760Smsmith struct acpi_softc *sc; 5767760Smsmith 5877432Smsmith FUNCTION_TRACE(__func__); 5971875Smsmith 6079386Smsmith if ((sc = devclass_get_softc(acpi_devclass, 0)) == NULL) 6179386Smsmith panic("can't find ACPI device to register interrupt"); 6279386Smsmith if (sc->acpi_dev == NULL) 6379386Smsmith panic("acpi softc has invalid device"); 6479386Smsmith 6567760Smsmith if ((InterruptNumber < 0) || (InterruptNumber > 255)) 6671875Smsmith return_ACPI_STATUS(AE_BAD_PARAMETER); 6767760Smsmith if (ServiceRoutine == NULL) 6871875Smsmith return_ACPI_STATUS(AE_BAD_PARAMETER); 6979000Smsmith if (InterruptHandler != NULL) { 7079000Smsmith device_printf(sc->acpi_dev, "can't register more than one ACPI interrupt\n"); 7179000Smsmith return_ACPI_STATUS(AE_BAD_PARAMETER); 7279000Smsmith } 7379000Smsmith InterruptHandler = ServiceRoutine; 7467760Smsmith 7567760Smsmith /* 7667760Smsmith * This isn't strictly true, as we ought to be able to handle > 1 interrupt. The ACPI 7767760Smsmith * spec doesn't call for this though. 7867760Smsmith */ 7967760Smsmith if (sc->acpi_irq != NULL) { 8067760Smsmith device_printf(sc->acpi_dev, "attempt to register more than one interrupt handler\n"); 8171875Smsmith return_ACPI_STATUS(AE_EXIST); 8267760Smsmith } 8367760Smsmith sc->acpi_irq_rid = 0; 8467760Smsmith bus_set_resource(sc->acpi_dev, SYS_RES_IRQ, 0, InterruptNumber, 1); 8567760Smsmith if ((sc->acpi_irq = bus_alloc_resource(sc->acpi_dev, SYS_RES_IRQ, &sc->acpi_irq_rid, 0, ~0, 1, 8667760Smsmith RF_SHAREABLE | RF_ACTIVE)) == NULL) { 8767760Smsmith device_printf(sc->acpi_dev, "could not allocate SCI interrupt\n"); 8871875Smsmith return_ACPI_STATUS(AE_EXIST); 8967760Smsmith } 9079000Smsmith if (bus_setup_intr(sc->acpi_dev, sc->acpi_irq, INTR_TYPE_MISC, (driver_intr_t *)InterruptWrapper, 9179000Smsmith Context, &sc->acpi_irq_handle)) { 9267760Smsmith device_printf(sc->acpi_dev, "could not set up SCI interrupt\n"); 9371875Smsmith return_ACPI_STATUS(AE_EXIST); 9467760Smsmith } 9567760Smsmith 9671875Smsmith return_ACPI_STATUS(AE_OK); 9767760Smsmith} 9867760Smsmith 9967760SmsmithACPI_STATUS 10067760SmsmithAcpiOsRemoveInterruptHandler (UINT32 InterruptNumber, OSD_HANDLER ServiceRoutine) 10167760Smsmith{ 10267760Smsmith struct acpi_softc *sc; 10367760Smsmith 10477432Smsmith FUNCTION_TRACE(__func__); 10571875Smsmith 10667760Smsmith if ((InterruptNumber < 0) || (InterruptNumber > 255)) 10771875Smsmith return_ACPI_STATUS(AE_BAD_PARAMETER); 10867760Smsmith if (ServiceRoutine == NULL) 10971875Smsmith return_ACPI_STATUS(AE_BAD_PARAMETER); 11067760Smsmith 11167760Smsmith if ((sc = devclass_get_softc(acpi_devclass, 0)) == NULL) 11267760Smsmith panic("can't find ACPI device to deregister interrupt"); 11367760Smsmith 11467760Smsmith if (sc->acpi_irq == NULL) 11571875Smsmith return_ACPI_STATUS(AE_NOT_EXIST); 11667760Smsmith 11767760Smsmith bus_teardown_intr(sc->acpi_dev, sc->acpi_irq, sc->acpi_irq_handle); 11867760Smsmith bus_release_resource(sc->acpi_dev, SYS_RES_IRQ, 0, sc->acpi_irq); 11967760Smsmith bus_delete_resource(sc->acpi_dev, SYS_RES_IRQ, 0); 12067760Smsmith 12167760Smsmith sc->acpi_irq = NULL; 12267760Smsmith 12371875Smsmith return_ACPI_STATUS(AE_OK); 12467760Smsmith} 12567760Smsmith 12679000Smsmith/* 12779000Smsmith * Interrupt handler wrapper. 12879000Smsmith */ 12979000Smsmithstatic void 13079000SmsmithInterruptWrapper(void *arg) 13179000Smsmith{ 13279000Smsmith ACPI_LOCK; 13379000Smsmith InterruptHandler(arg); 13479000Smsmith ACPI_UNLOCK; 13579000Smsmith} 136