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Index: share/man/man4/acpi_wmi_bmof.4
===================================================================
--- /dev/null
+++ share/man/man4/acpi_wmi_bmof.4
@@ -0,0 +1,99 @@
+\" Copyright (c) 2019 Takanori Watanabe
+.\" 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd September 5, 2019
+.Dt ACPI_WMI_BMOF 4
+.Os
+.Sh NAME
+.Nm acpi_wmi_bmof
+.Nd "extracting ACPI WMI embedded binary form of Managed Object Format file"
+.Sh SYNOPSIS
+To compile this driver into the kernel,
+place the following line in your
+kernel configuration file:
+.Bd -ragged -offset indent
+.Cd "device acpi_wmi"
+.Cd "device acpi_wmi_bmof"
+.Ed
+.Pp
+Alternatively, to load the driver as a
+module at boot time, place the following line in
+.Xr loader.conf 5 :
+.Bd -literal -offset indent
+acpi_wmi_bmof_load="YES"
+.Ed
+.Sh DESCRIPTION
+The
+.Nm
+driver provides an interface for embedded Managed Object Format file in WMI.
+(e.g. Lenovo Laptops).
+It creates sysctl 'data' node under device sysctl node.
+
+.\".Sh FILES
+.\".Bl -tag -width /dev/wmistat%d -compact
+.\".It Pa /dev/wmistat%d
+.\"WMI status device.
+.\".El
+.Sh EXAMPLES
+.Bd -literal
+# sysctl -b dev.acpi_wmi_bmof.0.data | bmf2mof
+[abstract]
+class Lenovo_BIOSElement {
+};
+
+[WMI, Dynamic, Provider("WMIProv"), WmiExpense(1), Description("Bios Setting"),
+GUID("{51F5230E-9677-46cd-A1CF-C0B23EE34DB7}"), Locale("MS\\0x409")]
+class Lenovo_BiosSetting : Lenovo_BiosElement {
+ [key, read] String InstanceName;
+ [read] Boolean Active;
+ [WmiDataId(1), Description("BIOS setting")] String CurrentSetting;
+ };
+ bra. bra.
+
+Here, bmf2mof is part of https://github.com/pali/bmfdec .
+.Ed
+.Sh SEE ALSO
+.Xr acpi 4
+.Xr sysctl 4
+.Sh HISTORY
+The
+.Nm
+device driver first appeared in
+.Fx 13.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+driver was written by
+.An Takanori Watanabe Aq Mt takawata@freebsd.org .
+.Pp
+Work has been inspired by the Linux wmi-bmof driver written by Andy Lutomirski .
+.Pp
+See http://www.microsoft.com/whdc/system/pnppwr/wmi/wmi-acpi.mspx for
+the specification of ACPI-WMI.
+.Pp
+This manual page was written by
+.An Takanori Watanabe Aq Mt takawata@freebsd.org .
Index: sys/conf/files
===================================================================
--- sys/conf/files
+++ sys/conf/files
@@ -731,6 +731,7 @@
dev/aacraid/aacraid_linux.c optional aacraid compat_linux
dev/aacraid/aacraid_pci.c optional aacraid pci
dev/acpi_support/acpi_wmi.c optional acpi_wmi acpi
+dev/acpi_support/acpi_wmi_bmof.c optional acpi_wmi_bmof acpi
dev/acpi_support/acpi_asus.c optional acpi_asus acpi
dev/acpi_support/acpi_asus_wmi.c optional acpi_asus_wmi acpi
dev/acpi_support/acpi_fujitsu.c optional acpi_fujitsu acpi
Index: sys/dev/acpi_support/acpi_wmi_bmof.c
===================================================================
--- /dev/null
+++ sys/dev/acpi_support/acpi_wmi_bmof.c
@@ -0,0 +1,123 @@
+#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 BMOF_WMI_UUID "05901221-D566-11D1-B2F0-00A0C9062910"
+
+struct acpi_wmi_bmof_softc{
+ char *mofbuf;
+};
+
+
+static void
+acpi_wmi_bmof_identify(driver_t *driver, device_t parent)
+{
+
+ /* Don't do anything if driver is disabled. */
+ if (acpi_disabled("bmof"))
+ return;
+ /* Add only a single device instance. */
+ if (device_find_child(parent, "acpi_wmi_bmof", -1) != NULL)
+ return;
+
+ /* Check management GUID to see whether system is compatible. */
+ if (!ACPI_WMI_PROVIDES_GUID_STRING(parent,
+ BMOF_WMI_UUID))
+ return;
+
+ if (BUS_ADD_CHILD(parent, 0, "acpi_wmi_bmof", -1) == NULL)
+ device_printf(parent, "add acpi_wmi_bmof\n");
+}
+
+static int
+acpi_wmi_bmof_probe(device_t dev)
+{
+
+ if (!ACPI_WMI_PROVIDES_GUID_STRING(device_get_parent(dev),
+ BMOF_WMI_UUID))
+ return (EINVAL);
+ device_set_desc(dev, "BMOF Sysctl");
+ return (0);
+
+}
+
+static int
+acpi_wmi_bmof_attach(device_t dev)
+{
+ struct acpi_wmi_bmof_softc *sc = device_get_softc(dev);
+ struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(dev);;
+ struct sysctl_oid *oid = device_get_sysctl_tree(dev);
+ ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL};
+ ACPI_STATUS status;
+ ACPI_OBJECT *obj;
+
+ status = ACPI_WMI_GET_BLOCK(device_get_parent(dev),
+ BMOF_WMI_UUID, 0, &out);
+ if(ACPI_FAILURE(status)){
+ device_printf(dev, "Error %s\n", AcpiFormatException(status));
+ AcpiOsFree(out.Pointer);
+ return EINVAL;
+ }
+ obj = out.Pointer;
+
+ if (!obj || obj->Type != ACPI_TYPE_BUFFER) {
+ AcpiOsFree(out.Pointer);
+ return EINVAL;
+ }
+
+ sc->mofbuf = out.Pointer;
+ device_printf(dev, "Length %lu Buflen %u\n", out.Length,
+ obj->Buffer.Length);
+ SYSCTL_ADD_OPAQUE(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, "data",
+ CTLFLAG_RD | CTLFLAG_MPSAFE,
+ obj->Buffer.Pointer,
+ obj->Buffer.Length, "A", "MOF Blob");
+
+ return 0;
+}
+
+static int
+acpi_wmi_bmof_detach(device_t dev)
+{
+ struct acpi_wmi_bmof_softc *sc = device_get_softc(dev);
+ AcpiOsFree(sc->mofbuf);
+ return 0;
+
+}
+
+static device_method_t acpi_wmi_bmof_methods[] = {
+ DEVMETHOD(device_identify, acpi_wmi_bmof_identify),
+ DEVMETHOD(device_probe, acpi_wmi_bmof_probe),
+ DEVMETHOD(device_attach, acpi_wmi_bmof_attach),
+ DEVMETHOD(device_detach, acpi_wmi_bmof_detach),
+
+ DEVMETHOD_END
+};
+
+static driver_t acpi_wmi_bmof_driver = {
+ "acpi_wmi_bmof",
+ acpi_wmi_bmof_methods,
+ sizeof(struct acpi_wmi_bmof_softc),
+};
+
+static devclass_t acpi_wmi_bmof_devclass;
+
+DRIVER_MODULE(acpi_wmi_bmof, acpi_wmi, acpi_wmi_bmof_driver,
+ acpi_wmi_bmof_devclass, 0, 0);
+MODULE_DEPEND(acpi_wmi_bmof, acpi_wmi, 1, 1, 1);
+MODULE_DEPEND(acpi_wmi_bmof, acpi, 1, 1, 1);
+
Index: sys/modules/acpi/Makefile
===================================================================
--- sys/modules/acpi/Makefile
+++ sys/modules/acpi/Makefile
@@ -2,6 +2,6 @@
SUBDIR= acpi_asus acpi_asus_wmi acpi_dock acpi_fujitsu acpi_hp \
acpi_ibm acpi_panasonic acpi_sony acpi_toshiba \
- acpi_video acpi_wmi aibs
+ acpi_video acpi_wmi acpi_wmi_bmof aibs
.include <bsd.subdir.mk>

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