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freebsd-skq/sys/dev/acpi_support/acpi_asus_wmi.c
Pawel Biernacki 7029da5c36 Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 
r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked).
Use it in preparation for a general review of all nodes.

This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.

Mark all obvious cases as MPSAFE.  All entries that haven't been marked
as MPSAFE before are by default marked as NEEDGIANT

Approved by:	kib (mentor, blanket)
Commented by:	kib, gallatin, melifaro
Differential Revision:	https://reviews.freebsd.org/D23718
2020-02-26 14:26:36 +00:00

638 lines
17 KiB
C
Raw Blame History

/*-
* Copyright (c) 2012 Alexander Motin <mav@FreeBSD.org>
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_acpi.h"
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/uio.h>
#include <sys/proc.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/sbuf.h>
#include <sys/module.h>
#include <sys/sysctl.h>
#include <contrib/dev/acpica/include/acpi.h>
#include <contrib/dev/acpica/include/accommon.h>
#include <dev/acpica/acpivar.h>
#include "acpi_wmi_if.h"
#define _COMPONENT ACPI_OEM
ACPI_MODULE_NAME("ASUS-WMI")
#define ACPI_ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
#define ACPI_ASUS_WMI_EVENT_GUID "0B3CBB35-E3C2-45ED-91C2-4C5A6D195D1C"
#define ACPI_EEEPC_WMI_EVENT_GUID "ABBC0F72-8EA1-11D1-00A0-C90629100000"
/* WMI Methods */
#define ASUS_WMI_METHODID_SPEC 0x43455053
#define ASUS_WMI_METHODID_SFUN 0x4E554653
#define ASUS_WMI_METHODID_DSTS 0x53544344
#define ASUS_WMI_METHODID_DSTS2 0x53545344
#define ASUS_WMI_METHODID_DEVS 0x53564544
#define ASUS_WMI_METHODID_INIT 0x54494E49
#define ASUS_WMI_METHODID_HKEY 0x59454B48
#define ASUS_WMI_UNSUPPORTED_METHOD 0xFFFFFFFE
/* Wireless */
#define ASUS_WMI_DEVID_HW_SWITCH 0x00010001
#define ASUS_WMI_DEVID_WIRELESS_LED 0x00010002
#define ASUS_WMI_DEVID_CWAP 0x00010003
#define ASUS_WMI_DEVID_WLAN 0x00010011
#define ASUS_WMI_DEVID_BLUETOOTH 0x00010013
#define ASUS_WMI_DEVID_GPS 0x00010015
#define ASUS_WMI_DEVID_WIMAX 0x00010017
#define ASUS_WMI_DEVID_WWAN3G 0x00010019
#define ASUS_WMI_DEVID_UWB 0x00010021
/* LEDs */
#define ASUS_WMI_DEVID_LED1 0x00020011
#define ASUS_WMI_DEVID_LED2 0x00020012
#define ASUS_WMI_DEVID_LED3 0x00020013
#define ASUS_WMI_DEVID_LED4 0x00020014
#define ASUS_WMI_DEVID_LED5 0x00020015
#define ASUS_WMI_DEVID_LED6 0x00020016
/* Backlight and Brightness */
#define ASUS_WMI_DEVID_BACKLIGHT 0x00050011
#define ASUS_WMI_DEVID_BRIGHTNESS 0x00050012
#define ASUS_WMI_DEVID_KBD_BACKLIGHT 0x00050021
#define ASUS_WMI_DEVID_LIGHT_SENSOR 0x00050022
/* Misc */
#define ASUS_WMI_DEVID_CAMERA 0x00060013
#define ASUS_WMI_DEVID_CARDREADER 0x00080013
#define ASUS_WMI_DEVID_TOUCHPAD 0x00100011
#define ASUS_WMI_DEVID_TOUCHPAD_LED 0x00100012
#define ASUS_WMI_DEVID_THERMAL_CTRL 0x00110011
#define ASUS_WMI_DEVID_FAN_CTRL 0x00110012
#define ASUS_WMI_DEVID_PROCESSOR_STATE 0x00120012
/* DSTS masks */
#define ASUS_WMI_DSTS_STATUS_BIT 0x00000001
#define ASUS_WMI_DSTS_UNKNOWN_BIT 0x00000002
#define ASUS_WMI_DSTS_PRESENCE_BIT 0x00010000
#define ASUS_WMI_DSTS_USER_BIT 0x00020000
#define ASUS_WMI_DSTS_BIOS_BIT 0x00040000
#define ASUS_WMI_DSTS_BRIGHTNESS_MASK 0x000000FF
#define ASUS_WMI_DSTS_MAX_BRIGTH_MASK 0x0000FF00
struct acpi_asus_wmi_softc {
device_t dev;
device_t wmi_dev;
const char *notify_guid;
struct sysctl_ctx_list *sysctl_ctx;
struct sysctl_oid *sysctl_tree;
int dsts_id;
int handle_keys;
};
static struct {
char *name;
int dev_id;
char *description;
int flag_rdonly;
} acpi_asus_wmi_sysctls[] = {
{
.name = "hw_switch",
.dev_id = ASUS_WMI_DEVID_HW_SWITCH,
.description = "hw_switch",
},
{
.name = "wireless_led",
.dev_id = ASUS_WMI_DEVID_WIRELESS_LED,
.description = "Wireless LED control",
},
{
.name = "cwap",
.dev_id = ASUS_WMI_DEVID_CWAP,
.description = "Alt+F2 function",
},
{
.name = "wlan",
.dev_id = ASUS_WMI_DEVID_WLAN,
.description = "WLAN power control",
},
{
.name = "bluetooth",
.dev_id = ASUS_WMI_DEVID_BLUETOOTH,
.description = "Bluetooth power control",
},
{
.name = "gps",
.dev_id = ASUS_WMI_DEVID_GPS,
.description = "GPS power control",
},
{
.name = "wimax",
.dev_id = ASUS_WMI_DEVID_WIMAX,
.description = "WiMAX power control",
},
{
.name = "wwan3g",
.dev_id = ASUS_WMI_DEVID_WWAN3G,
.description = "WWAN-3G power control",
},
{
.name = "uwb",
.dev_id = ASUS_WMI_DEVID_UWB,
.description = "UWB power control",
},
{
.name = "led1",
.dev_id = ASUS_WMI_DEVID_LED1,
.description = "LED1 control",
},
{
.name = "led2",
.dev_id = ASUS_WMI_DEVID_LED2,
.description = "LED2 control",
},
{
.name = "led3",
.dev_id = ASUS_WMI_DEVID_LED3,
.description = "LED3 control",
},
{
.name = "led4",
.dev_id = ASUS_WMI_DEVID_LED4,
.description = "LED4 control",
},
{
.name = "led5",
.dev_id = ASUS_WMI_DEVID_LED5,
.description = "LED5 control",
},
{
.name = "led6",
.dev_id = ASUS_WMI_DEVID_LED6,
.description = "LED6 control",
},
{
.name = "backlight",
.dev_id = ASUS_WMI_DEVID_BACKLIGHT,
.description = "LCD backlight on/off control",
},
{
.name = "brightness",
.dev_id = ASUS_WMI_DEVID_BRIGHTNESS,
.description = "LCD backlight brightness control",
},
{
.name = "kbd_backlight",
.dev_id = ASUS_WMI_DEVID_KBD_BACKLIGHT,
.description = "Keyboard backlight brightness control",
},
{
.name = "light_sensor",
.dev_id = ASUS_WMI_DEVID_LIGHT_SENSOR,
.description = "Ambient light sensor",
},
{
.name = "camera",
.dev_id = ASUS_WMI_DEVID_CAMERA,
.description = "Camera power control",
},
{
.name = "cardreader",
.dev_id = ASUS_WMI_DEVID_CARDREADER,
.description = "Cardreader power control",
},
{
.name = "touchpad",
.dev_id = ASUS_WMI_DEVID_TOUCHPAD,
.description = "Touchpad control",
},
{
.name = "touchpad_led",
.dev_id = ASUS_WMI_DEVID_TOUCHPAD_LED,
.description = "Touchpad LED control",
},
{
.name = "themperature",
.dev_id = ASUS_WMI_DEVID_THERMAL_CTRL,
.description = "Temperature (C)",
.flag_rdonly = 1
},
{
.name = "fan_speed",
.dev_id = ASUS_WMI_DEVID_FAN_CTRL,
.description = "Fan speed (0-3)",
.flag_rdonly = 1
},
{
.name = "processor_state",
.dev_id = ASUS_WMI_DEVID_PROCESSOR_STATE,
.flag_rdonly = 1
},
{ NULL, 0, NULL, 0 }
};
ACPI_SERIAL_DECL(asus_wmi, "ASUS WMI device");
static void acpi_asus_wmi_identify(driver_t *driver, device_t parent);
static int acpi_asus_wmi_probe(device_t dev);
static int acpi_asus_wmi_attach(device_t dev);
static int acpi_asus_wmi_detach(device_t dev);
static int acpi_asus_wmi_sysctl(SYSCTL_HANDLER_ARGS);
static int acpi_asus_wmi_sysctl_set(struct acpi_asus_wmi_softc *sc, int dev_id,
int arg, int oldarg);
static int acpi_asus_wmi_sysctl_get(struct acpi_asus_wmi_softc *sc, int dev_id);
static int acpi_asus_wmi_evaluate_method(device_t wmi_dev, int method,
UINT32 arg0, UINT32 arg1, UINT32 *retval);
static int acpi_wpi_asus_get_devstate(struct acpi_asus_wmi_softc *sc,
UINT32 dev_id, UINT32 *retval);
static int acpi_wpi_asus_set_devstate(struct acpi_asus_wmi_softc *sc,
UINT32 dev_id, UINT32 ctrl_param, UINT32 *retval);
static void acpi_asus_wmi_notify(ACPI_HANDLE h, UINT32 notify, void *context);
static device_method_t acpi_asus_wmi_methods[] = {
DEVMETHOD(device_identify, acpi_asus_wmi_identify),
DEVMETHOD(device_probe, acpi_asus_wmi_probe),
DEVMETHOD(device_attach, acpi_asus_wmi_attach),
DEVMETHOD(device_detach, acpi_asus_wmi_detach),
DEVMETHOD_END
};
static driver_t acpi_asus_wmi_driver = {
"acpi_asus_wmi",
acpi_asus_wmi_methods,
sizeof(struct acpi_asus_wmi_softc),
};
static devclass_t acpi_asus_wmi_devclass;
DRIVER_MODULE(acpi_asus_wmi, acpi_wmi, acpi_asus_wmi_driver,
acpi_asus_wmi_devclass, 0, 0);
MODULE_DEPEND(acpi_asus_wmi, acpi_wmi, 1, 1, 1);
MODULE_DEPEND(acpi_asus_wmi, acpi, 1, 1, 1);
static void
acpi_asus_wmi_identify(driver_t *driver, device_t parent)
{
/* Don't do anything if driver is disabled. */
if (acpi_disabled("asus_wmi"))
return;
/* Add only a single device instance. */
if (device_find_child(parent, "acpi_asus_wmi", -1) != NULL)
return;
/* Check management GUID to see whether system is compatible. */
if (!ACPI_WMI_PROVIDES_GUID_STRING(parent,
ACPI_ASUS_WMI_MGMT_GUID))
return;
if (BUS_ADD_CHILD(parent, 0, "acpi_asus_wmi", -1) == NULL)
device_printf(parent, "add acpi_asus_wmi child failed\n");
}
static int
acpi_asus_wmi_probe(device_t dev)
{
if (!ACPI_WMI_PROVIDES_GUID_STRING(device_get_parent(dev),
ACPI_ASUS_WMI_MGMT_GUID))
return (EINVAL);
device_set_desc(dev, "ASUS WMI device");
return (0);
}
static int
acpi_asus_wmi_attach(device_t dev)
{
struct acpi_asus_wmi_softc *sc;
UINT32 val;
int dev_id, i;
ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
sc = device_get_softc(dev);
sc->dev = dev;
sc->wmi_dev = device_get_parent(dev);
sc->handle_keys = 1;
/* Check management GUID. */
if (!ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
ACPI_ASUS_WMI_MGMT_GUID)) {
device_printf(dev,
"WMI device does not provide the ASUS management GUID\n");
return (EINVAL);
}
/* Find proper DSTS method. */
sc->dsts_id = ASUS_WMI_METHODID_DSTS;
next:
for (i = 0; acpi_asus_wmi_sysctls[i].name != NULL; ++i) {
dev_id = acpi_asus_wmi_sysctls[i].dev_id;
if (acpi_wpi_asus_get_devstate(sc, dev_id, &val))
continue;
break;
}
if (acpi_asus_wmi_sysctls[i].name == NULL) {
if (sc->dsts_id == ASUS_WMI_METHODID_DSTS) {
sc->dsts_id = ASUS_WMI_METHODID_DSTS2;
goto next;
} else {
device_printf(dev, "Can not detect DSTS method ID\n");
return (EINVAL);
}
}
/* Find proper and attach to notufy GUID. */
if (ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
ACPI_ASUS_WMI_EVENT_GUID))
sc->notify_guid = ACPI_ASUS_WMI_EVENT_GUID;
else if (ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
ACPI_EEEPC_WMI_EVENT_GUID))
sc->notify_guid = ACPI_EEEPC_WMI_EVENT_GUID;
else
sc->notify_guid = NULL;
if (sc->notify_guid != NULL) {
if (ACPI_WMI_INSTALL_EVENT_HANDLER(sc->wmi_dev,
sc->notify_guid, acpi_asus_wmi_notify, dev))
sc->notify_guid = NULL;
}
if (sc->notify_guid == NULL)
device_printf(dev, "Could not install event handler!\n");
/* Initialize. */
if (!acpi_asus_wmi_evaluate_method(sc->wmi_dev,
ASUS_WMI_METHODID_INIT, 0, 0, &val) && bootverbose)
device_printf(dev, "Initialization: %#x\n", val);
if (!acpi_asus_wmi_evaluate_method(sc->wmi_dev,
ASUS_WMI_METHODID_SPEC, 0, 0x9, &val) && bootverbose)
device_printf(dev, "WMI BIOS version: %d.%d\n",
val >> 16, val & 0xFF);
if (!acpi_asus_wmi_evaluate_method(sc->wmi_dev,
ASUS_WMI_METHODID_SFUN, 0, 0, &val) && bootverbose)
device_printf(dev, "SFUN value: %#x\n", val);
ACPI_SERIAL_BEGIN(asus_wmi);
sc->sysctl_ctx = device_get_sysctl_ctx(dev);
sc->sysctl_tree = device_get_sysctl_tree(dev);
SYSCTL_ADD_INT(sc->sysctl_ctx,
SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
"handle_keys", CTLFLAG_RW, &sc->handle_keys,
0, "Handle some hardware keys inside the driver");
for (i = 0; acpi_asus_wmi_sysctls[i].name != NULL; ++i) {
dev_id = acpi_asus_wmi_sysctls[i].dev_id;
if (acpi_wpi_asus_get_devstate(sc, dev_id, &val))
continue;
switch (dev_id) {
case ASUS_WMI_DEVID_THERMAL_CTRL:
case ASUS_WMI_DEVID_PROCESSOR_STATE:
case ASUS_WMI_DEVID_FAN_CTRL:
case ASUS_WMI_DEVID_BRIGHTNESS:
if (val == 0)
continue;
break;
default:
if ((val & ASUS_WMI_DSTS_PRESENCE_BIT) == 0)
continue;
break;
}
if (acpi_asus_wmi_sysctls[i].flag_rdonly != 0) {
SYSCTL_ADD_PROC(sc->sysctl_ctx,
SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
acpi_asus_wmi_sysctls[i].name,
CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
sc, i, acpi_asus_wmi_sysctl, "I",
acpi_asus_wmi_sysctls[i].description);
} else {
SYSCTL_ADD_PROC(sc->sysctl_ctx,
SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
acpi_asus_wmi_sysctls[i].name,
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
sc, i, acpi_asus_wmi_sysctl, "I",
acpi_asus_wmi_sysctls[i].description);
}
}
ACPI_SERIAL_END(asus_wmi);
return (0);
}
static int
acpi_asus_wmi_detach(device_t dev)
{
struct acpi_asus_wmi_softc *sc = device_get_softc(dev);
ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
if (sc->notify_guid)
ACPI_WMI_REMOVE_EVENT_HANDLER(dev, sc->notify_guid);
return (0);
}
static int
acpi_asus_wmi_sysctl(SYSCTL_HANDLER_ARGS)
{
struct acpi_asus_wmi_softc *sc;
int arg;
int oldarg;
int error = 0;
int function;
int dev_id;
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
sc = (struct acpi_asus_wmi_softc *)oidp->oid_arg1;
function = oidp->oid_arg2;
dev_id = acpi_asus_wmi_sysctls[function].dev_id;
ACPI_SERIAL_BEGIN(asus_wmi);
arg = acpi_asus_wmi_sysctl_get(sc, dev_id);
oldarg = arg;
error = sysctl_handle_int(oidp, &arg, 0, req);
if (!error && req->newptr != NULL)
error = acpi_asus_wmi_sysctl_set(sc, dev_id, arg, oldarg);
ACPI_SERIAL_END(asus_wmi);
return (error);
}
static int
acpi_asus_wmi_sysctl_get(struct acpi_asus_wmi_softc *sc, int dev_id)
{
UINT32 val = 0;
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
ACPI_SERIAL_ASSERT(asus_wmi);
acpi_wpi_asus_get_devstate(sc, dev_id, &val);
switch(dev_id) {
case ASUS_WMI_DEVID_THERMAL_CTRL:
val = (val - 2731 + 5) / 10;
break;
case ASUS_WMI_DEVID_PROCESSOR_STATE:
case ASUS_WMI_DEVID_FAN_CTRL:
break;
case ASUS_WMI_DEVID_BRIGHTNESS:
val &= ASUS_WMI_DSTS_BRIGHTNESS_MASK;
break;
case ASUS_WMI_DEVID_KBD_BACKLIGHT:
val &= 0x7;
break;
default:
if (val & ASUS_WMI_DSTS_UNKNOWN_BIT)
val = -1;
else
val = !!(val & ASUS_WMI_DSTS_STATUS_BIT);
break;
}
return (val);
}
static int
acpi_asus_wmi_sysctl_set(struct acpi_asus_wmi_softc *sc, int dev_id, int arg, int oldarg)
{
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
ACPI_SERIAL_ASSERT(asus_wmi);
switch(dev_id) {
case ASUS_WMI_DEVID_KBD_BACKLIGHT:
arg = min(0x7, arg);
if (arg != 0)
arg |= 0x80;
break;
}
acpi_wpi_asus_set_devstate(sc, dev_id, arg, NULL);
return (0);
}
static __inline void
acpi_asus_wmi_free_buffer(ACPI_BUFFER* buf) {
if (buf && buf->Pointer) {
AcpiOsFree(buf->Pointer);
}
}
static void
acpi_asus_wmi_notify(ACPI_HANDLE h, UINT32 notify, void *context)
{
device_t dev = context;
ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
UINT32 val;
int code = 0;
struct acpi_asus_wmi_softc *sc = device_get_softc(dev);
ACPI_BUFFER response = { ACPI_ALLOCATE_BUFFER, NULL };
ACPI_OBJECT *obj;
ACPI_WMI_GET_EVENT_DATA(sc->wmi_dev, notify, &response);
obj = (ACPI_OBJECT*) response.Pointer;
if (obj && obj->Type == ACPI_TYPE_INTEGER) {
code = obj->Integer.Value;
acpi_UserNotify("ASUS", ACPI_ROOT_OBJECT,
code);
}
if (code && sc->handle_keys) {
/* Keyboard backlight control. */
if (code == 0xc4 || code == 0xc5) {
acpi_wpi_asus_get_devstate(sc,
ASUS_WMI_DEVID_KBD_BACKLIGHT, &val);
val &= 0x7;
if (code == 0xc4) {
if (val < 0x7)
val++;
} else if (val > 0)
val--;
if (val != 0)
val |= 0x80;
acpi_wpi_asus_set_devstate(sc,
ASUS_WMI_DEVID_KBD_BACKLIGHT, val, NULL);
}
/* Touchpad control. */
if (code == 0x6b) {
acpi_wpi_asus_get_devstate(sc,
ASUS_WMI_DEVID_TOUCHPAD, &val);
val = !(val & 1);
acpi_wpi_asus_set_devstate(sc,
ASUS_WMI_DEVID_TOUCHPAD, val, NULL);
}
}
acpi_asus_wmi_free_buffer(&response);
}
static int
acpi_asus_wmi_evaluate_method(device_t wmi_dev, int method,
UINT32 arg0, UINT32 arg1, UINT32 *retval)
{
UINT32 params[2] = { arg0, arg1 };
UINT32 result;
ACPI_OBJECT *obj;
ACPI_BUFFER in = { sizeof(params), &params };
ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
if (ACPI_FAILURE(ACPI_WMI_EVALUATE_CALL(wmi_dev,
ACPI_ASUS_WMI_MGMT_GUID, 1, method, &in, &out))) {
acpi_asus_wmi_free_buffer(&out);
return (-EINVAL);
}
obj = out.Pointer;
if (obj && obj->Type == ACPI_TYPE_INTEGER)
result = (UINT32) obj->Integer.Value;
else
result = 0;
acpi_asus_wmi_free_buffer(&out);
if (retval)
*retval = result;
return (result == ASUS_WMI_UNSUPPORTED_METHOD ? -ENODEV : 0);
}
static int
acpi_wpi_asus_get_devstate(struct acpi_asus_wmi_softc *sc,
UINT32 dev_id, UINT32 *retval)
{
return (acpi_asus_wmi_evaluate_method(sc->wmi_dev,
sc->dsts_id, dev_id, 0, retval));
}
static int
acpi_wpi_asus_set_devstate(struct acpi_asus_wmi_softc *sc,
UINT32 dev_id, UINT32 ctrl_param, UINT32 *retval)
{
return (acpi_asus_wmi_evaluate_method(sc->wmi_dev,
ASUS_WMI_METHODID_DEVS, dev_id, ctrl_param, retval));
}
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