1 files changed, 137 insertions, 0 deletions
diff --git a/sys/dev/acpica/Osd/OsdInterrupt.c b/sys/dev/acpica/Osd/OsdInterrupt.c
new file mode 100644
index 0000000..d848145
--- /dev/null
+++ b/sys/dev/acpica/Osd/OsdInterrupt.c
@@ -0,0 +1,137 @@
+/*-
+ * Copyright (c) 2000 Michael Smith
+ * Copyright (c) 2000 BSDi
+ * All rights reserved.
+ *
+ * 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 AUTHOR 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 AUTHOR 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.
+ *
+ *	$FreeBSD$
+ */
+
+/*
+ * 6.5 : Interrupt handling
+ */
+
+#include "acpi.h"
+
+#include <sys/bus.h>
+#include <machine/resource.h>
+#include <machine/bus.h>
+#include <sys/rman.h>
+ 
+#include <dev/acpica/acpivar.h>
+
+#define _COMPONENT	ACPI_OS_SERVICES
+ACPI_MODULE_NAME("INTERRUPT")
+
+static void		InterruptWrapper(void *arg);
+static OSD_HANDLER	InterruptHandler;
+
+/*
+ * XXX this does not correctly free resources in the case of partically successful
+ * attachment.
+ */
+ACPI_STATUS
+AcpiOsInstallInterruptHandler(UINT32 InterruptNumber, OSD_HANDLER ServiceRoutine, void *Context)
+{
+    struct acpi_softc	*sc;
+
+    ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+
+    if ((sc = devclass_get_softc(devclass_find("acpi"), 0)) == NULL)
+	panic("can't find ACPI device to register interrupt");
+    if (sc->acpi_dev == NULL)
+	panic("acpi softc has invalid device");
+
+    if ((InterruptNumber < 0) || (InterruptNumber > 255))
+	return_ACPI_STATUS(AE_BAD_PARAMETER);
+    if (ServiceRoutine == NULL)
+	return_ACPI_STATUS(AE_BAD_PARAMETER);
+    if (InterruptHandler != NULL && InterruptHandler != ServiceRoutine) {
+	device_printf(sc->acpi_dev, "can't register more than one ACPI interrupt\n");
+	return_ACPI_STATUS(AE_BAD_PARAMETER);
+    }
+    InterruptHandler = ServiceRoutine;
+
+    /*
+     * This isn't strictly true, as we ought to be able to handle > 1 interrupt.  The ACPI
+     * spec doesn't call for this though.
+     */
+    if (sc->acpi_irq != NULL) {
+	device_printf(sc->acpi_dev, "attempt to register more than one interrupt handler\n");
+	return_ACPI_STATUS(AE_ALREADY_EXISTS);
+    }
+    sc->acpi_irq_rid = 0;
+    bus_set_resource(sc->acpi_dev, SYS_RES_IRQ, 0, InterruptNumber, 1);
+    if ((sc->acpi_irq = bus_alloc_resource(sc->acpi_dev, SYS_RES_IRQ, &sc->acpi_irq_rid, 0, ~0, 1, 
+					   RF_SHAREABLE | RF_ACTIVE)) == NULL) {
+	device_printf(sc->acpi_dev, "could not allocate SCI interrupt\n");
+	return_ACPI_STATUS(AE_ALREADY_EXISTS);
+    }
+    if (bus_setup_intr(sc->acpi_dev, sc->acpi_irq, INTR_TYPE_MISC, (driver_intr_t *)InterruptWrapper,
+		       Context, &sc->acpi_irq_handle)) {
+	device_printf(sc->acpi_dev, "could not set up SCI interrupt\n");
+	return_ACPI_STATUS(AE_ALREADY_EXISTS);
+    }
+	
+    return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_STATUS
+AcpiOsRemoveInterruptHandler (UINT32 InterruptNumber, OSD_HANDLER ServiceRoutine)
+{
+    struct acpi_softc	*sc;
+
+    ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+
+    if ((InterruptNumber < 0) || (InterruptNumber > 255))
+	return_ACPI_STATUS(AE_BAD_PARAMETER);
+    if (ServiceRoutine == NULL)
+	return_ACPI_STATUS(AE_BAD_PARAMETER);
+
+    if ((sc = devclass_get_softc(devclass_find("acpi"), 0)) == NULL)
+	panic("can't find ACPI device to deregister interrupt");
+
+    if (sc->acpi_irq == NULL)
+	return_ACPI_STATUS(AE_NOT_EXIST);
+
+    bus_teardown_intr(sc->acpi_dev, sc->acpi_irq, sc->acpi_irq_handle);
+    bus_release_resource(sc->acpi_dev, SYS_RES_IRQ, 0, sc->acpi_irq);
+    bus_delete_resource(sc->acpi_dev, SYS_RES_IRQ, 0);
+
+    sc->acpi_irq = NULL;
+
+    return_ACPI_STATUS(AE_OK);
+}
+
+/*
+ * Interrupt handler wrapper.
+ */
+static void
+InterruptWrapper(void *arg)
+{
+    ACPI_LOCK_DECL;
+
+    ACPI_LOCK;
+    InterruptHandler(arg);
+    ACPI_UNLOCK;
+}