freebsd-dev/sys/dev/acpica/Osd/OsdBusMgr.c
2001-01-31 09:34:54 +00:00

168 lines
4.5 KiB
C

/*-
* 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.
*
* $FreeBSD$
*/
/*
* OSD interfaces for the BusMgr module
*/
#include "acpi.h"
#include "bmosd.h"
#include <sys/eventhandler.h>
#include <sys/reboot.h>
#define _COMPONENT OS_DEPENDENT
MODULE_NAME("BUSMGR")
struct osd_eventhandle {
eventhandler_tag tag;
OSD_IDLE_HANDLER Function;
void *Context;
};
#define NUM_IDLEHANDLERS 10
struct osd_eventhandle idlehandlers[NUM_IDLEHANDLERS] = {{0, 0}};
#define NUM_SHUTDOWNHANDLERS 20
struct osd_eventhandle shutdownhandlers[NUM_SHUTDOWNHANDLERS] = {{0, 0}};
static void
osd_idlehandler(void *arg, int junk)
{
struct osd_eventhandle *oh = (struct osd_eventhandle *)arg;
FUNCTION_TRACE(__FUNCTION__);
oh->Function(oh->Context);
return_VOID();
}
static void
osd_shutdownhandler(void *arg, int howto)
{
struct osd_eventhandle *oh = (struct osd_eventhandle *)arg;
FUNCTION_TRACE(__FUNCTION__);
oh->Function(oh->Context);
return_VOID();
}
ACPI_STATUS
AcpiOsInstallIdleHandler(OSD_IDLE_HANDLER Function, void *Context)
{
int i;
FUNCTION_TRACE(__FUNCTION__);
if (Function == NULL)
return_ACPI_STATUS(AE_BAD_PARAMETER);
for (i = 0; i < NUM_IDLEHANDLERS; i++) {
if (idlehandlers[i].Function == NULL) {
idlehandlers[i].Function = Function;
idlehandlers[i].Context = Context;
idlehandlers[i].tag = EVENTHANDLER_FAST_REGISTER(idle_event, osd_idlehandler,
&idlehandlers[i], IDLE_PRI_FIRST);
return_ACPI_STATUS(AE_OK);
}
}
return_ACPI_STATUS(AE_NO_MEMORY);
}
ACPI_STATUS
AcpiOsRemoveIdleHandler(OSD_IDLE_HANDLER Function)
{
int i;
FUNCTION_TRACE(__FUNCTION__);
if (Function == NULL)
return_ACPI_STATUS(AE_BAD_PARAMETER);
for (i = 0; i < NUM_IDLEHANDLERS; i++) {
if (idlehandlers[i].Function == Function) {
EVENTHANDLER_FAST_DEREGISTER(idle_event, idlehandlers[i].tag);
idlehandlers[i].Function = NULL;
return_ACPI_STATUS(AE_OK);
}
}
return_ACPI_STATUS(AE_NOT_EXIST);
}
/*
* It's not clear where exactly in the shutdown order these should be
* queued.
*/
ACPI_STATUS
AcpiOsInstallShutdownHandler(OSD_SHUTDOWN_HANDLER Function, void *Context)
{
int i;
FUNCTION_TRACE(__FUNCTION__);
if (Function == NULL)
return_ACPI_STATUS(AE_BAD_PARAMETER);
for (i = 0; i < NUM_SHUTDOWNHANDLERS; i++) {
if (shutdownhandlers[i].Function == NULL) {
shutdownhandlers[i].Function = Function;
shutdownhandlers[i].Context = Context;
shutdownhandlers[i].tag = EVENTHANDLER_REGISTER(shutdown_final, osd_shutdownhandler,
&shutdownhandlers[i], SHUTDOWN_PRI_LAST);
return_ACPI_STATUS(AE_OK);
}
}
return_ACPI_STATUS(AE_NO_MEMORY);
}
ACPI_STATUS
AcpiOsRemoveShutdownHandler(OSD_SHUTDOWN_HANDLER Function)
{
int i;
FUNCTION_TRACE(__FUNCTION__);
if (Function == NULL)
return_ACPI_STATUS(AE_BAD_PARAMETER);
for (i = 0; i < NUM_SHUTDOWNHANDLERS; i++) {
if (shutdownhandlers[i].Function == Function) {
EVENTHANDLER_DEREGISTER(shutdown_final, shutdownhandlers[i].tag);
shutdownhandlers[i].Function = NULL;
return_ACPI_STATUS(AE_OK);
}
}
return_ACPI_STATUS(AE_NOT_EXIST);
}
ACPI_STATUS
AcpiOsShutdown (void)
{
FUNCTION_TRACE(__FUNCTION__);
shutdown_nice(0);
return_VOID();
}