aboutsummaryrefslogtreecommitdiff
path: root/sys
diff options
context:
space:
mode:
Diffstat (limited to 'sys')
-rw-r--r--sys/conf/files2
-rw-r--r--sys/conf/files.amd641
-rw-r--r--sys/conf/files.i3861
-rw-r--r--sys/conf/kmod.mk3
-rw-r--r--sys/dev/acpi_support/acpi_hp.c1183
-rw-r--r--sys/dev/acpi_support/acpi_wmi.c1006
-rw-r--r--sys/dev/acpi_support/acpi_wmi_if.m144
-rw-r--r--sys/i386/conf/NOTES6
-rw-r--r--sys/modules/acpi/Makefile4
-rw-r--r--sys/modules/acpi/acpi_hp/Makefile9
-rw-r--r--sys/modules/acpi/acpi_wmi/Makefile9
11 files changed, 2365 insertions, 3 deletions
diff --git a/sys/conf/files b/sys/conf/files
index d35ef359aa5a..8a31438358a3 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -398,9 +398,11 @@ dev/aac/aac_debug.c optional aac
dev/aac/aac_disk.c optional aac
dev/aac/aac_linux.c optional aac compat_linux
dev/aac/aac_pci.c optional aac pci
+dev/acpi_support/acpi_wmi.c optional acpi_wmi acpi
dev/acpi_support/acpi_aiboost.c optional acpi_aiboost acpi
dev/acpi_support/acpi_asus.c optional acpi_asus acpi
dev/acpi_support/acpi_fujitsu.c optional acpi_fujitsu acpi
+dev/acpi_support/acpi_hp.c optional acpi_hp acpi
dev/acpi_support/acpi_ibm.c optional acpi_ibm acpi
dev/acpi_support/acpi_panasonic.c optional acpi_panasonic acpi
dev/acpi_support/acpi_sony.c optional acpi_sony acpi
diff --git a/sys/conf/files.amd64 b/sys/conf/files.amd64
index 602d7e04ae77..be1aff5801df 100644
--- a/sys/conf/files.amd64
+++ b/sys/conf/files.amd64
@@ -146,6 +146,7 @@ crypto/via/padlock.c optional padlock
crypto/via/padlock_cipher.c optional padlock
crypto/via/padlock_hash.c optional padlock
dev/acpica/acpi_if.m standard
+dev/acpi_support/acpi_wmi_if.m standard
dev/agp/agp_amd64.c optional agp
dev/agp/agp_i810.c optional agp
dev/agp/agp_intel.c optional agp
diff --git a/sys/conf/files.i386 b/sys/conf/files.i386
index b7e464bafa17..88bd1f148f72 100644
--- a/sys/conf/files.i386
+++ b/sys/conf/files.i386
@@ -223,6 +223,7 @@ dev/syscons/scvtb.c optional sc
dev/syscons/teken/teken.c optional sc
dev/uart/uart_cpu_i386.c optional uart
dev/acpica/acpi_if.m standard
+dev/acpi_support/acpi_wmi_if.m standard
dev/wpi/if_wpi.c optional wpi
i386/acpica/OsdEnvironment.c optional acpi
i386/acpica/acpi_machdep.c optional acpi
diff --git a/sys/conf/kmod.mk b/sys/conf/kmod.mk
index 555b8f8ac2db..1c788a36b953 100644
--- a/sys/conf/kmod.mk
+++ b/sys/conf/kmod.mk
@@ -320,7 +320,8 @@ ${_src}:
.endfor
.endif
-MFILES?= dev/acpica/acpi_if.m dev/agp/agp_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \
+MFILES?= dev/acpica/acpi_if.m dev/acpi_support/acpi_wmi_if.m \
+ dev/agp/agp_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \
dev/iicbus/iicbb_if.m dev/iicbus/iicbus_if.m \
dev/mmc/mmcbr_if.m dev/mmc/mmcbus_if.m \
dev/mii/miibus_if.m dev/ofw/ofw_bus_if.m \
diff --git a/sys/dev/acpi_support/acpi_hp.c b/sys/dev/acpi_support/acpi_hp.c
new file mode 100644
index 000000000000..66d30e82a74e
--- /dev/null
+++ b/sys/dev/acpi_support/acpi_hp.c
@@ -0,0 +1,1183 @@
+/*-
+ * Copyright (c) 2009 Michael Gmelin <freebsd@grem.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * Driver for extra ACPI-controlled features found on HP laptops
+ * that use a WMI enabled BIOS (e.g. HP Compaq 8510p and 6510p).
+ * Allows to control and read status of integrated hardware and read
+ * BIOS settings through CMI.
+ * Inspired by the hp-wmi driver, which implements a subset of these
+ * features (hotkeys) on Linux.
+ *
+ * HP CMI whitepaper:
+ * http://h20331.www2.hp.com/Hpsub/downloads/cmi_whitepaper.pdf
+ * wmi-hp for Linux:
+ * http://www.kernel.org
+ * WMI and ACPI:
+ * http://www.microsoft.com/whdc/system/pnppwr/wmi/wmi-acpi.mspx
+ */
+
+#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("HP")
+
+#define ACPI_HP_WMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
+#define ACPI_HP_WMI_BIOS_GUID "5FB7F034-2C63-45E9-BE91-3D44E2C707E4"
+#define ACPI_HP_WMI_CMI_GUID "2D114B49-2DFB-4130-B8FE-4A3C09E75133"
+
+#define ACPI_HP_WMI_DISPLAY_COMMAND 0x1
+#define ACPI_HP_WMI_HDDTEMP_COMMAND 0x2
+#define ACPI_HP_WMI_ALS_COMMAND 0x3
+#define ACPI_HP_WMI_DOCK_COMMAND 0x4
+#define ACPI_HP_WMI_WIRELESS_COMMAND 0x5
+
+#define ACPI_HP_METHOD_WLAN_ENABLED 1
+#define ACPI_HP_METHOD_WLAN_RADIO 2
+#define ACPI_HP_METHOD_WLAN_ON_AIR 3
+#define ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON 4
+#define ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF 5
+#define ACPI_HP_METHOD_BLUETOOTH_ENABLED 6
+#define ACPI_HP_METHOD_BLUETOOTH_RADIO 7
+#define ACPI_HP_METHOD_BLUETOOTH_ON_AIR 8
+#define ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON 9
+#define ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF 10
+#define ACPI_HP_METHOD_WWAN_ENABLED 11
+#define ACPI_HP_METHOD_WWAN_RADIO 12
+#define ACPI_HP_METHOD_WWAN_ON_AIR 13
+#define ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON 14
+#define ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF 15
+#define ACPI_HP_METHOD_ALS 16
+#define ACPI_HP_METHOD_DISPLAY 17
+#define ACPI_HP_METHOD_HDDTEMP 18
+#define ACPI_HP_METHOD_DOCK 19
+#define ACPI_HP_METHOD_CMI_DETAIL 20
+
+#define HP_MASK_WWAN_ON_AIR 0x1000000
+#define HP_MASK_BLUETOOTH_ON_AIR 0x10000
+#define HP_MASK_WLAN_ON_AIR 0x100
+#define HP_MASK_WWAN_RADIO 0x8000000
+#define HP_MASK_BLUETOOTH_RADIO 0x80000
+#define HP_MASK_WLAN_RADIO 0x800
+#define HP_MASK_WWAN_ENABLED 0x2000000
+#define HP_MASK_BLUETOOTH_ENABLED 0x20000
+#define HP_MASK_WLAN_ENABLED 0x200
+
+#define ACPI_HP_CMI_DETAIL_PATHS 0x01
+#define ACPI_HP_CMI_DETAIL_ENUMS 0x02
+#define ACPI_HP_CMI_DETAIL_FLAGS 0x04
+
+struct acpi_hp_inst_seq_pair {
+ UINT32 sequence; /* sequence number as suggested by cmi bios */
+ UINT8 instance; /* object instance on guid */
+};
+
+struct acpi_hp_softc {
+ device_t dev;
+ ACPI_HANDLE handle;
+ device_t wmi_dev;
+ int has_notify; /* notification GUID found */
+ int has_cmi; /* CMI GUID found */
+ int cmi_detail; /* CMI detail level
+ (set by sysctl) */
+ int wlan_enable_if_radio_on; /* set by sysctl */
+ int wlan_disable_if_radio_off; /* set by sysctl */
+ int bluetooth_enable_if_radio_on; /* set by sysctl */
+ int bluetooth_disable_if_radio_off; /* set by sysctl */
+ int wwan_enable_if_radio_on; /* set by sysctl */
+ int wwan_disable_if_radio_off; /* set by sysctl */
+ int was_wlan_on_air; /* last known WLAN
+ on air status */
+ int was_bluetooth_on_air; /* last known BT
+ on air status */
+ int was_wwan_on_air; /* last known WWAN
+ on air status */
+ struct sysctl_ctx_list *sysctl_ctx;
+ struct sysctl_oid *sysctl_tree;
+ struct cdev *hpcmi_dev_t; /* hpcmi device handle */
+ struct sbuf hpcmi_sbuf; /* /dev/hpcmi output sbuf */
+ pid_t hpcmi_open_pid; /* pid operating on
+ /dev/hpcmi */
+ int hpcmi_bufptr; /* current pointer position
+ in /dev/hpcmi output buffer
+ */
+ int cmi_order_size; /* size of cmi_order list */
+ struct acpi_hp_inst_seq_pair cmi_order[128]; /* list of CMI
+ instances ordered by BIOS suggested sequence */
+};
+
+static struct {
+ char *name;
+ int method;
+ char *description;
+ int access;
+} acpi_hp_sysctls[] = {
+ {
+ .name = "wlan_enabled",
+ .method = ACPI_HP_METHOD_WLAN_ENABLED,
+ .description = "Enable/Disable WLAN (WiFi)",
+ .access = CTLTYPE_INT | CTLFLAG_RW
+ },
+ {
+ .name = "wlan_radio",
+ .method = ACPI_HP_METHOD_WLAN_RADIO,
+ .description = "WLAN radio status",
+ .access = CTLTYPE_INT | CTLFLAG_RD
+ },
+ {
+ .name = "wlan_on_air",
+ .method = ACPI_HP_METHOD_WLAN_ON_AIR,
+ .description = "WLAN radio ready to use (enabled and radio)",
+ .access = CTLTYPE_INT | CTLFLAG_RD
+ },
+ {
+ .name = "wlan_enable_if_radio_on",
+ .method = ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON,
+ .description = "Enable WLAN if radio is turned on",
+ .access = CTLTYPE_INT | CTLFLAG_RW
+ },
+ {
+ .name = "wlan_disable_if_radio_off",
+ .method = ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF,
+ .description = "Disable WLAN if radio is turned off",
+ .access = CTLTYPE_INT | CTLFLAG_RW
+ },
+ {
+ .name = "bt_enabled",
+ .method = ACPI_HP_METHOD_BLUETOOTH_ENABLED,
+ .description = "Enable/Disable Bluetooth",
+ .access = CTLTYPE_INT | CTLFLAG_RW
+ },
+ {
+ .name = "bt_radio",
+ .method = ACPI_HP_METHOD_BLUETOOTH_RADIO,
+ .description = "Bluetooth radio status",
+ .access = CTLTYPE_INT | CTLFLAG_RD
+ },
+ {
+ .name = "bt_on_air",
+ .method = ACPI_HP_METHOD_BLUETOOTH_ON_AIR,
+ .description = "Bluetooth radio ready to use"
+ " (enabled and radio)",
+ .access = CTLTYPE_INT | CTLFLAG_RD
+ },
+ {
+ .name = "bt_enable_if_radio_on",
+ .method = ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON,
+ .description = "Enable bluetooth if radio is turned on",
+ .access = CTLTYPE_INT | CTLFLAG_RW
+ },
+ {
+ .name = "bt_disable_if_radio_off",
+ .method = ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF,
+ .description = "Disable bluetooth if radio is turned off",
+ .access = CTLTYPE_INT | CTLFLAG_RW
+ },
+ {
+ .name = "wwan_enabled",
+ .method = ACPI_HP_METHOD_WWAN_ENABLED,
+ .description = "Enable/Disable WWAN (UMTS)",
+ .access = CTLTYPE_INT | CTLFLAG_RW
+ },
+ {
+ .name = "wwan_radio",
+ .method = ACPI_HP_METHOD_WWAN_RADIO,
+ .description = "WWAN radio status",
+ .access = CTLTYPE_INT | CTLFLAG_RD
+ },
+ {
+ .name = "wwan_on_air",
+ .method = ACPI_HP_METHOD_WWAN_ON_AIR,
+ .description = "WWAN radio ready to use (enabled and radio)",
+ .access = CTLTYPE_INT | CTLFLAG_RD
+ },
+ {
+ .name = "wwan_enable_if_radio_on",
+ .method = ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON,
+ .description = "Enable WWAN if radio is turned on",
+ .access = CTLTYPE_INT | CTLFLAG_RW
+ },
+ {
+ .name = "wwan_disable_if_radio_off",
+ .method = ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF,
+ .description = "Disable WWAN if radio is turned off",
+ .access = CTLTYPE_INT | CTLFLAG_RW
+ },
+ {
+ .name = "als_enabled",
+ .method = ACPI_HP_METHOD_ALS,
+ .description = "Enable/Disable ALS (Ambient light sensor)",
+ .access = CTLTYPE_INT | CTLFLAG_RW
+ },
+ {
+ .name = "display",
+ .method = ACPI_HP_METHOD_DISPLAY,
+ .description = "Display status",
+ .access = CTLTYPE_INT | CTLFLAG_RD
+ },
+ {
+ .name = "hdd_temperature",
+ .method = ACPI_HP_METHOD_HDDTEMP,
+ .description = "HDD temperature",
+ .access = CTLTYPE_INT | CTLFLAG_RD
+ },
+ {
+ .name = "is_docked",
+ .method = ACPI_HP_METHOD_DOCK,
+ .description = "Docking station status",
+ .access = CTLTYPE_INT | CTLFLAG_RD
+ },
+ {
+ .name = "cmi_detail",
+ .method = ACPI_HP_METHOD_CMI_DETAIL,
+ .description = "Details shown in CMI output "
+ "(cat /dev/hpcmi)",
+ .access = CTLTYPE_INT | CTLFLAG_RW
+ },
+
+ { NULL, 0, NULL, 0 }
+};
+
+ACPI_SERIAL_DECL(hp, "HP ACPI-WMI Mapping");
+
+static int acpi_hp_probe(device_t dev);
+static int acpi_hp_attach(device_t dev);
+static int acpi_hp_detach(device_t dev);
+
+static void acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc* sc);
+static int acpi_hp_sysctl(SYSCTL_HANDLER_ARGS);
+static int acpi_hp_sysctl_set(struct acpi_hp_softc *sc, int method,
+ int arg, int oldarg);
+static int acpi_hp_sysctl_get(struct acpi_hp_softc *sc, int method);
+static int acpi_hp_exec_wmi_command(device_t wmi_dev, int command,
+ int is_write, int val);
+static void acpi_hp_notify(ACPI_HANDLE h, UINT32 notify, void *context);
+static int acpi_hp_get_cmi_block(device_t wmi_dev, const char* guid,
+ UINT8 instance, char* outbuf, size_t outsize,
+ UINT32* sequence, int detail);
+static void acpi_hp_hex_decode(char* buffer);
+
+static d_open_t acpi_hp_hpcmi_open;
+static d_close_t acpi_hp_hpcmi_close;
+static d_read_t acpi_hp_hpcmi_read;
+
+/* handler /dev/hpcmi device */
+static struct cdevsw hpcmi_cdevsw = {
+ .d_version = D_VERSION,
+ .d_open = acpi_hp_hpcmi_open,
+ .d_close = acpi_hp_hpcmi_close,
+ .d_read = acpi_hp_hpcmi_read,
+ .d_name = "hpcmi",
+};
+
+static device_method_t acpi_hp_methods[] = {
+ DEVMETHOD(device_probe, acpi_hp_probe),
+ DEVMETHOD(device_attach, acpi_hp_attach),
+ DEVMETHOD(device_detach, acpi_hp_detach),
+ {0, 0}
+};
+
+static driver_t acpi_hp_driver = {
+ "acpi_hp",
+ acpi_hp_methods,
+ sizeof(struct acpi_hp_softc),
+};
+
+static devclass_t acpi_hp_devclass;
+
+DRIVER_MODULE(acpi_hp, acpi, acpi_hp_driver, acpi_hp_devclass,
+ 0, 0);
+MODULE_DEPEND(acpi_hp, acpi_wmi, 1, 1, 1);
+MODULE_DEPEND(acpi_hp, acpi, 1, 1, 1);
+
+static void
+acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc *sc)
+{
+ int wireless;
+ int new_wlan_status;
+ int new_bluetooth_status;
+ int new_wwan_status;
+
+ wireless = acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
+ new_wlan_status = -1;
+ new_bluetooth_status = -1;
+ new_wwan_status = -1;
+
+ device_printf(sc->wmi_dev, "Wireless status is %x\n", wireless);
+ if (sc->wlan_disable_if_radio_off && !(wireless & HP_MASK_WLAN_RADIO)
+ && (wireless & HP_MASK_WLAN_ENABLED)) {
+ acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x100);
+ new_wlan_status = 0;
+ }
+ else if (sc->wlan_enable_if_radio_on && (wireless & HP_MASK_WLAN_RADIO)
+ && !(wireless & HP_MASK_WLAN_ENABLED)) {
+ acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x101);
+ new_wlan_status = 1;
+ }
+ if (sc->bluetooth_disable_if_radio_off &&
+ !(wireless & HP_MASK_BLUETOOTH_RADIO) &&
+ (wireless & HP_MASK_BLUETOOTH_ENABLED)) {
+ acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x200);
+ new_bluetooth_status = 0;
+ }
+ else if (sc->bluetooth_enable_if_radio_on &&
+ (wireless & HP_MASK_BLUETOOTH_RADIO) &&
+ !(wireless & HP_MASK_BLUETOOTH_ENABLED)) {
+ acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x202);
+ new_bluetooth_status = 1;
+ }
+ if (sc->wwan_disable_if_radio_off &&
+ !(wireless & HP_MASK_WWAN_RADIO) &&
+ (wireless & HP_MASK_WWAN_ENABLED)) {
+ acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x400);
+ new_wwan_status = 0;
+ }
+ else if (sc->wwan_enable_if_radio_on &&
+ (wireless & HP_MASK_WWAN_RADIO) &&
+ !(wireless & HP_MASK_WWAN_ENABLED)) {
+ acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 1, 0x404);
+ new_wwan_status = 1;
+ }
+
+ if (new_wlan_status == -1) {
+ new_wlan_status = (wireless & HP_MASK_WLAN_ON_AIR);
+ if ((new_wlan_status?1:0) != sc->was_wlan_on_air) {
+ sc->was_wlan_on_air = sc->was_wlan_on_air?0:1;
+ device_printf(sc->wmi_dev,
+ "WLAN on air changed to %i "
+ "(new_wlan_status is %i)\n",
+ sc->was_wlan_on_air, new_wlan_status);
+ acpi_UserNotify("HP", sc->handle,
+ 0xc0+sc->was_wlan_on_air);
+ }
+ }
+ if (new_bluetooth_status == -1) {
+ new_bluetooth_status = (wireless & HP_MASK_BLUETOOTH_ON_AIR);
+ if ((new_bluetooth_status?1:0) != sc->was_bluetooth_on_air) {
+ sc->was_bluetooth_on_air = sc->was_bluetooth_on_air?
+ 0:1;
+ device_printf(sc->wmi_dev, "BLUETOOTH on air changed"
+ " to %i (new_bluetooth_status is %i)\n",
+ sc->was_bluetooth_on_air, new_bluetooth_status);
+ acpi_UserNotify("HP", sc->handle,
+ 0xd0+sc->was_bluetooth_on_air);
+ }
+ }
+ if (new_wwan_status == -1) {
+ new_wwan_status = (wireless & HP_MASK_WWAN_ON_AIR);
+ if ((new_wwan_status?1:0) != sc->was_wwan_on_air) {
+ sc->was_wwan_on_air = sc->was_wwan_on_air?0:1;
+ device_printf(sc->wmi_dev, "WWAN on air changed to %i"
+ " (new_wwan_status is %i)\n",
+ sc->was_wwan_on_air, new_wwan_status);
+ acpi_UserNotify("HP", sc->handle,
+ 0xe0+sc->was_wwan_on_air);
+ }
+ }
+}
+
+static int
+acpi_hp_probe(device_t dev)
+{
+ if (acpi_disabled("hp") || device_get_unit(dev) != 0)
+ return (ENXIO);
+ device_set_desc(dev, "HP ACPI-WMI Mapping");
+
+ return (0);
+}
+
+static int
+acpi_hp_attach(device_t dev)
+{
+ struct acpi_hp_softc *sc;
+ struct acpi_softc *acpi_sc;
+ devclass_t wmi_devclass;
+ int arg;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
+
+ sc = device_get_softc(dev);
+ sc->dev = dev;
+ sc->handle = acpi_get_handle(dev);
+ sc->has_notify = 0;
+ sc->has_cmi = 0;
+ sc->bluetooth_enable_if_radio_on = 0;
+ sc->bluetooth_disable_if_radio_off = 0;
+ sc->wlan_enable_if_radio_on = 0;
+ sc->wlan_disable_if_radio_off = 0;
+ sc->wlan_enable_if_radio_on = 0;
+ sc->wlan_disable_if_radio_off = 0;
+ sc->was_wlan_on_air = 0;
+ sc->was_bluetooth_on_air = 0;
+ sc->was_wwan_on_air = 0;
+ sc->cmi_detail = 0;
+ sc->cmi_order_size = -1;
+ memset(sc->cmi_order, 0, sizeof(sc->cmi_order));
+ acpi_sc = acpi_device_get_parent_softc(dev);
+
+ if (!(wmi_devclass = devclass_find ("acpi_wmi"))) {
+ device_printf(dev, "Couldn't find acpi_wmi devclass\n");
+ return (EINVAL);
+ }
+ if (!(sc->wmi_dev = devclass_get_device(wmi_devclass, 0))) {
+ device_printf(dev, "Couldn't find acpi_wmi device\n");
+ return (EINVAL);
+ }
+ if (!ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
+ ACPI_HP_WMI_BIOS_GUID)) {
+ device_printf(dev,
+ "WMI device does not provide the HP BIOS GUID\n");
+ return (EINVAL);
+ }
+ if (ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev,
+ ACPI_HP_WMI_EVENT_GUID)) {
+ device_printf(dev,
+ "HP event GUID detected, installing event handler\n");
+ if (ACPI_WMI_INSTALL_EVENT_HANDLER(sc->wmi_dev,
+ ACPI_HP_WMI_EVENT_GUID, acpi_hp_notify, dev)) {
+ device_printf(dev,
+ "Could not install notification handler!\n");
+ }
+ else {
+ sc->has_notify = 1;
+ }
+ }
+ if (ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev, ACPI_HP_WMI_CMI_GUID)) {
+ device_printf(dev, "HP CMI GUID detected\n");
+ sc->has_cmi = 1;
+ }
+
+ if (sc->has_cmi) {
+ sc->hpcmi_dev_t = make_dev(&hpcmi_cdevsw, 0, UID_ROOT,
+ GID_WHEEL, 0644, "hpcmi");
+ sc->hpcmi_dev_t->si_drv1 = sc;
+ sc->hpcmi_open_pid = 0;
+ sc->hpcmi_bufptr = -1;
+ }
+
+ ACPI_SERIAL_BEGIN(hp);
+
+ sc->sysctl_ctx = device_get_sysctl_ctx(dev);
+ sc->sysctl_tree = device_get_sysctl_tree(dev);
+ for (int i = 0; acpi_hp_sysctls[i].name != NULL; ++i) {
+ arg = 0;
+ if ((!sc->has_notify &&
+ (acpi_hp_sysctls[i].method ==
+ ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON ||
+ acpi_hp_sysctls[i].method ==
+ ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF ||
+ acpi_hp_sysctls[i].method ==
+ ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON ||
+ acpi_hp_sysctls[i].method ==
+ ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF ||
+ acpi_hp_sysctls[i].method ==
+ ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON ||
+ acpi_hp_sysctls[i].method ==
+ ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF)) ||
+ (arg = acpi_hp_sysctl_get(sc,
+ acpi_hp_sysctls[i].method)) < 0) {
+ continue;
+ }
+ if (acpi_hp_sysctls[i].method == ACPI_HP_METHOD_WLAN_ON_AIR) {
+ sc->was_wlan_on_air = arg;
+ }
+ else if (acpi_hp_sysctls[i].method ==
+ ACPI_HP_METHOD_BLUETOOTH_ON_AIR) {
+ sc->was_bluetooth_on_air = arg;
+ }
+ else if (acpi_hp_sysctls[i].method ==
+ ACPI_HP_METHOD_WWAN_ON_AIR) {
+ sc->was_wwan_on_air = arg;
+ }
+
+ SYSCTL_ADD_PROC(sc->sysctl_ctx,
+ SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
+ acpi_hp_sysctls[i].name, acpi_hp_sysctls[i].access,
+ sc, i, acpi_hp_sysctl, "I",
+ acpi_hp_sysctls[i].description);
+ }
+ ACPI_SERIAL_END(hp);
+
+ return (0);
+}
+
+static int
+acpi_hp_detach(device_t dev)
+{
+ int ret;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
+ struct acpi_hp_softc *sc = device_get_softc(dev);
+ if (sc->has_cmi && sc->hpcmi_open_pid != 0) {
+ ret = EBUSY;
+ }
+ else {
+ if (sc->has_notify) {
+ ACPI_WMI_REMOVE_EVENT_HANDLER(dev,
+ ACPI_HP_WMI_EVENT_GUID);
+ }
+ if (sc->hpcmi_bufptr != -1) {
+ sbuf_delete(&sc->hpcmi_sbuf);
+ sc->hpcmi_bufptr = -1;
+ }
+ sc->hpcmi_open_pid = 0;
+ destroy_dev(sc->hpcmi_dev_t);
+ ret = 0;
+ }
+
+ return (ret);
+}
+
+static int
+acpi_hp_sysctl(SYSCTL_HANDLER_ARGS)
+{
+ struct acpi_hp_softc *sc;
+ int arg;
+ int oldarg;
+ int error = 0;
+ int function;
+ int method;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+
+ sc = (struct acpi_hp_softc *)oidp->oid_arg1;
+ function = oidp->oid_arg2;
+ method = acpi_hp_sysctls[function].method;
+
+ ACPI_SERIAL_BEGIN(hp);
+ arg = acpi_hp_sysctl_get(sc, method);
+ oldarg = arg;
+ error = sysctl_handle_int(oidp, &arg, 0, req);
+ if (!error && req->newptr != NULL) {
+ error = acpi_hp_sysctl_set(sc, method, arg, oldarg);
+ }
+ ACPI_SERIAL_END(hp);
+
+ return (error);
+}
+
+static int
+acpi_hp_sysctl_get(struct acpi_hp_softc *sc, int method)
+{
+ int val = 0;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+ ACPI_SERIAL_ASSERT(hp);
+
+ switch (method) {
+ case ACPI_HP_METHOD_WLAN_ENABLED:
+ val = acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
+ val = ((val & HP_MASK_WLAN_ENABLED) != 0);
+ break;
+ case ACPI_HP_METHOD_WLAN_RADIO:
+ val = acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
+ val = ((val & HP_MASK_WLAN_RADIO) != 0);
+ break;
+ case ACPI_HP_METHOD_WLAN_ON_AIR:
+ val = acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
+ val = ((val & HP_MASK_WLAN_ON_AIR) != 0);
+ break;
+ case ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON:
+ val = sc->wlan_enable_if_radio_on;
+ break;
+ case ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF:
+ val = sc->wlan_disable_if_radio_off;
+ break;
+ case ACPI_HP_METHOD_BLUETOOTH_ENABLED:
+ val = acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
+ val = ((val & HP_MASK_BLUETOOTH_ENABLED) != 0);
+ break;
+ case ACPI_HP_METHOD_BLUETOOTH_RADIO:
+ val = acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
+ val = ((val & HP_MASK_BLUETOOTH_RADIO) != 0);
+ break;
+ case ACPI_HP_METHOD_BLUETOOTH_ON_AIR:
+ val = acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
+ val = ((val & HP_MASK_BLUETOOTH_ON_AIR) != 0);
+ break;
+ case ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON:
+ val = sc->bluetooth_enable_if_radio_on;
+ break;
+ case ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF:
+ val = sc->bluetooth_disable_if_radio_off;
+ break;
+ case ACPI_HP_METHOD_WWAN_ENABLED:
+ val = acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
+ val = ((val & HP_MASK_WWAN_ENABLED) != 0);
+ break;
+ case ACPI_HP_METHOD_WWAN_RADIO:
+ val = acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
+ val = ((val & HP_MASK_WWAN_RADIO) != 0);
+ break;
+ case ACPI_HP_METHOD_WWAN_ON_AIR:
+ val = acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 0, 0);
+ val = ((val & HP_MASK_WWAN_ON_AIR) != 0);
+ break;
+ case ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON:
+ val = sc->wwan_enable_if_radio_on;
+ break;
+ case ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF:
+ val = sc->wwan_disable_if_radio_off;
+ break;
+ case ACPI_HP_METHOD_ALS:
+ val = acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_ALS_COMMAND, 0, 0);
+ break;
+ case ACPI_HP_METHOD_DISPLAY:
+ val = acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_DISPLAY_COMMAND, 0, 0);
+ break;
+ case ACPI_HP_METHOD_HDDTEMP:
+ val = acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_HDDTEMP_COMMAND, 0, 0);
+ break;
+ case ACPI_HP_METHOD_DOCK:
+ val = acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_DOCK_COMMAND, 0, 0);
+ break;
+ case ACPI_HP_METHOD_CMI_DETAIL:
+ val = sc->cmi_detail;
+ break;
+ }
+
+ return (val);
+}
+
+static int
+acpi_hp_sysctl_set(struct acpi_hp_softc *sc, int method, int arg, int oldarg)
+{
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+ ACPI_SERIAL_ASSERT(hp);
+
+ if (method != ACPI_HP_METHOD_CMI_DETAIL)
+ arg = arg?1:0;
+
+ if (arg != oldarg) {
+ switch (method) {
+ case ACPI_HP_METHOD_WLAN_ENABLED:
+ return (acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 1,
+ arg?0x101:0x100));
+ case ACPI_HP_METHOD_WLAN_ENABLE_IF_RADIO_ON:
+ sc->wlan_enable_if_radio_on = arg;
+ acpi_hp_evaluate_auto_on_off(sc);
+ break;
+ case ACPI_HP_METHOD_WLAN_DISABLE_IF_RADIO_OFF:
+ sc->wlan_disable_if_radio_off = arg;
+ acpi_hp_evaluate_auto_on_off(sc);
+ break;
+ case ACPI_HP_METHOD_BLUETOOTH_ENABLED:
+ return (acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 1,
+ arg?0x202:0x200));
+ case ACPI_HP_METHOD_BLUETOOTH_ENABLE_IF_RADIO_ON:
+ sc->bluetooth_enable_if_radio_on = arg;
+ acpi_hp_evaluate_auto_on_off(sc);
+ break;
+ case ACPI_HP_METHOD_BLUETOOTH_DISABLE_IF_RADIO_OFF:
+ sc->bluetooth_disable_if_radio_off = arg?1:0;
+ acpi_hp_evaluate_auto_on_off(sc);
+ break;
+ case ACPI_HP_METHOD_WWAN_ENABLED:
+ return (acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_WIRELESS_COMMAND, 1,
+ arg?0x404:0x400));
+ case ACPI_HP_METHOD_WWAN_ENABLE_IF_RADIO_ON:
+ sc->wwan_enable_if_radio_on = arg?1:0;
+ acpi_hp_evaluate_auto_on_off(sc);
+ break;
+ case ACPI_HP_METHOD_WWAN_DISABLE_IF_RADIO_OFF:
+ sc->wwan_disable_if_radio_off = arg?1:0;
+ acpi_hp_evaluate_auto_on_off(sc);
+ break;
+ case ACPI_HP_METHOD_ALS:
+ return (acpi_hp_exec_wmi_command(sc->wmi_dev,
+ ACPI_HP_WMI_ALS_COMMAND, 1,
+ arg?1:0));
+ case ACPI_HP_METHOD_CMI_DETAIL:
+ sc->cmi_detail = arg;
+ break;
+ }
+ }
+
+ return (0);
+}
+
+static __inline void
+acpi_hp_free_buffer(ACPI_BUFFER* buf) {
+ if (buf && buf->Pointer) {
+ AcpiOsFree(buf->Pointer);
+ }
+}
+
+static void
+acpi_hp_notify(ACPI_HANDLE h, UINT32 notify, void *context)
+{
+ device_t dev = context;
+ ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
+
+ struct acpi_hp_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_BUFFER && obj->Buffer.Length == 8) {
+ if (*((UINT8 *) obj->Buffer.Pointer) == 0x5) {
+ acpi_hp_evaluate_auto_on_off(sc);
+ }
+ }
+ acpi_hp_free_buffer(&response);
+}
+
+static int
+acpi_hp_exec_wmi_command(device_t wmi_dev, int command, int is_write, int val)
+{
+ UINT32 params[5] = { 0x55434553,
+ is_write?2:1,
+ command,
+ is_write?4:0,
+ val};
+ UINT32* result;
+ ACPI_OBJECT *obj;
+ ACPI_BUFFER in = { sizeof(params), &params };
+ ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
+ int retval;
+
+ if (ACPI_FAILURE(ACPI_WMI_EVALUATE_CALL(wmi_dev, ACPI_HP_WMI_BIOS_GUID,
+ 0, 0x3, &in, &out))) {
+ acpi_hp_free_buffer(&out);
+ return (-EINVAL);
+ }
+ obj = out.Pointer;
+ if (!obj || obj->Type != ACPI_TYPE_BUFFER) {
+ acpi_hp_free_buffer(&out);
+ return (-EINVAL);
+ }
+ result = (UINT32*) obj->Buffer.Pointer;
+ retval = result[2];
+ if (result[1] > 0) {
+ retval = result[1];
+ }
+ acpi_hp_free_buffer(&out);
+
+ return (retval);
+}
+
+static __inline char*
+acpi_hp_get_string_from_object(ACPI_OBJECT* obj, char* dst, size_t size) {
+ int length;
+ dst[0] = 0;
+ if (obj->Type == ACPI_TYPE_STRING) {
+ length = obj->String.Length+1;
+ if (length > size) {
+ length = size - 1;
+ }
+ strlcpy(dst, obj->String.Pointer, length);
+ acpi_hp_hex_decode(dst);
+ }
+
+ return (dst);
+}
+
+
+/*
+ * Read BIOS Setting block in instance "instance".
+ * The block returned is ACPI_TYPE_PACKAGE which should contain the following
+ * elements:
+ * Index Meaning
+ * 0 Setting Name [string]
+ * 1 Value (comma separated, asterisk marks the current value) [string]
+ * 2 Path within the bios hierarchy [string]
+ * 3 IsReadOnly [int]
+ * 4 DisplayInUI [int]
+ * 5 RequiresPhysicalPresence [int]
+ * 6 Sequence for ordering within the bios settings (absolute) [int]
+ * 7 Length of prerequisites array [int]
+ * 8 Prerequisite1 [string]
+ * 9 Prerequisite2 [string]
+ * 10 Prerequisite3 [string]
+ * 11 Current value (in case of enum) [string] / Array length [int]
+ * 12 Enum length [int] / Array values
+ * 13ff Enum value at index x [string]
+ */
+static int
+acpi_hp_get_cmi_block(device_t wmi_dev, const char* guid, UINT8 instance,
+ char* outbuf, size_t outsize, UINT32* sequence, int detail)
+{
+ ACPI_OBJECT *obj;
+ ACPI_BUFFER out = { ACPI_ALLOCATE_BUFFER, NULL };
+ int i;
+ int outlen;
+ int size = 255;
+ int has_enums = 0;
+ char string_buffer[size];
+ int enumbase;
+
+ outlen = 0;
+ outbuf[0] = 0;
+ if (ACPI_FAILURE(ACPI_WMI_GET_BLOCK(wmi_dev, guid, instance, &out))) {
+ acpi_hp_free_buffer(&out);
+ return (-EINVAL);
+ }
+ obj = out.Pointer;
+ if (!obj && obj->Type != ACPI_TYPE_PACKAGE) {
+ acpi_hp_free_buffer(&out);
+ return (-EINVAL);
+ }
+
+ /* check if this matches our expectations based on limited knowledge */
+ if (obj->Package.Count >= 13 &&
+ obj->Package.Elements[0].Type == ACPI_TYPE_STRING &&
+ obj->Package.Elements[1].Type == ACPI_TYPE_STRING &&
+ obj->Package.Elements[2].Type == ACPI_TYPE_STRING &&
+ obj->Package.Elements[3].Type == ACPI_TYPE_INTEGER &&
+ obj->Package.Elements[4].Type == ACPI_TYPE_INTEGER &&
+ obj->Package.Elements[5].Type == ACPI_TYPE_INTEGER &&
+ obj->Package.Elements[6].Type == ACPI_TYPE_INTEGER &&
+ obj->Package.Elements[7].Type == ACPI_TYPE_INTEGER &&
+ obj->Package.Elements[8].Type == ACPI_TYPE_STRING &&
+ obj->Package.Elements[9].Type == ACPI_TYPE_STRING &&
+ obj->Package.Elements[10].Type == ACPI_TYPE_STRING &&
+ ((obj->Package.Elements[11].Type == ACPI_TYPE_STRING &&
+ obj->Package.Elements[12].Type == ACPI_TYPE_INTEGER &&
+ obj->Package.Count >=
+ 13+obj->Package.Elements[12].Integer.Value) ||
+ (obj->Package.Elements[11].Type == ACPI_TYPE_INTEGER &&
+ obj->Package.Count >=
+ 12+obj->Package.Elements[11].Integer.Value))
+ ) {
+ enumbase = obj->Package.Elements[11].Type == ACPI_TYPE_STRING?
+ 12:11;
+ if (detail & ACPI_HP_CMI_DETAIL_PATHS) {
+ strlcat(outbuf, acpi_hp_get_string_from_object(
+ &obj->Package.Elements[2], string_buffer, size),
+ outsize);
+ outlen += 48;
+ while (strlen(outbuf) < outlen)
+ strlcat(outbuf, " ", outsize);
+ }
+ strlcat(outbuf, acpi_hp_get_string_from_object(
+ &obj->Package.Elements[0], string_buffer, size),
+ outsize);
+ outlen += 43;
+ while (strlen(outbuf) < outlen)
+ strlcat(outbuf, " ", outsize);
+ if (enumbase == 12)
+ strlcat(outbuf, acpi_hp_get_string_from_object(
+ &obj->Package.Elements[11],
+ string_buffer, size),
+ outsize);
+ outlen += 21;
+ while (strlen(outbuf) < outlen)
+ strlcat(outbuf, " ", outsize);
+ for (i = 0; i < strlen(outbuf); ++i)
+ if (outbuf[i] == '\\')
+ outbuf[i] = '/';
+ if (detail & ACPI_HP_CMI_DETAIL_ENUMS) {
+ for (i = enumbase+1; i < enumbase + 1 +
+ obj->Package.Elements[enumbase].Integer.Value;
+ ++i) {
+ acpi_hp_get_string_from_object(
+ &obj->Package.Elements[i], string_buffer,
+ size);
+ if (strlen(string_buffer) > 1 ||
+ (strlen(string_buffer) == 1 &&
+ string_buffer[0] != ' ')) {
+ if (has_enums)
+ strlcat(outbuf, "/", outsize);
+ else
+ strlcat(outbuf, " (", outsize);
+ strlcat(outbuf, string_buffer, outsize);
+ has_enums = 1;
+ }
+ }
+ }
+ if (has_enums)
+ strlcat(outbuf, ")", outsize);
+ if (detail & ACPI_HP_CMI_DETAIL_FLAGS) {
+ strlcat(outbuf, obj->Package.Elements[3].Integer.Value?
+ " [ReadOnly]":"", outsize);
+ strlcat(outbuf, obj->Package.Elements[4].Integer.Value?
+ "":" [NOUI]", outsize);
+ strlcat(outbuf, obj->Package.Elements[5].Integer.Value?
+ " [RPP]":"", outsize);
+ }
+ *sequence = (UINT32) obj->Package.Elements[6].Integer.Value;
+ }
+ acpi_hp_free_buffer(&out);
+
+ return (0);
+}
+
+
+
+/*
+ * Convert given two digit hex string (hexin) to an UINT8 referenced
+ * by byteout.
+ * Return != 0 if the was a problem (invalid input)
+ */
+static __inline int acpi_hp_hex_to_int(const UINT8 *hexin, UINT8 *byteout)
+{
+ unsigned int hi;
+ unsigned int lo;
+
+ hi = hexin[0];
+ lo = hexin[1];
+ if ('0' <= hi && hi <= '9')
+ hi -= '0';
+ else if ('A' <= hi && hi <= 'F')
+ hi -= ('A' - 10);
+ else if ('a' <= hi && hi <= 'f')
+ hi -= ('a' - 10);
+ else
+ return (1);
+ if ('0' <= lo && lo <= '9')
+ lo -= '0';
+ else if ('A' <= lo && lo <= 'F')
+ lo -= ('A' - 10);
+ else if ('a' <= lo && lo <= 'f')
+ lo -= ('a' - 10);
+ else
+ return (1);
+ *byteout = (hi << 4) + lo;
+
+ return (0);
+}
+
+
+static void
+acpi_hp_hex_decode(char* buffer)
+{
+ int i;
+ int length = strlen(buffer);
+ UINT8 *uin;
+ UINT8 uout;
+
+ if (((int)length/2)*2 == length || length < 10) return;
+
+ for (i = 0; i<length; ++i) {
+ if (!((i+1)%3)) {
+ if (buffer[i] != ' ')
+ return;
+ }
+ else
+ if (!((buffer[i] >= '0' && buffer[i] <= '9') ||
+ (buffer[i] >= 'A' && buffer[i] <= 'F')))
+ return;
+ }
+
+ for (i = 0; i<length; i += 3) {
+ uin = &buffer[i];
+ uout = 0;
+ acpi_hp_hex_to_int(uin, &uout);
+ buffer[i/3] = (char) uout;
+ }
+ buffer[(length+1)/3] = 0;
+}
+
+
+/*
+ * open hpcmi device
+ */
+static int
+acpi_hp_hpcmi_open(struct cdev* dev, int flags, int mode, struct thread *td)
+{
+ struct acpi_hp_softc *sc;
+ int ret;
+
+ if (dev == NULL || dev->si_drv1 == NULL)
+ return (EBADF);
+ sc = dev->si_drv1;
+
+ ACPI_SERIAL_BEGIN(hp);
+ if (sc->hpcmi_open_pid != 0) {
+ ret = EBUSY;
+ }
+ else {
+ if (sbuf_new(&sc->hpcmi_sbuf, NULL, 4096, SBUF_AUTOEXTEND)
+ == NULL) {
+ ret = ENXIO;
+ } else {
+ sc->hpcmi_open_pid = td->td_proc->p_pid;
+ sc->hpcmi_bufptr = 0;
+ ret = 0;
+ }
+ }
+ ACPI_SERIAL_END(hp);
+
+ return (ret);
+}
+
+/*
+ * close hpcmi device
+ */
+static int
+acpi_hp_hpcmi_close(struct cdev* dev, int flags, int mode, struct thread *td)
+{
+ struct acpi_hp_softc *sc;
+ int ret;
+
+ if (dev == NULL || dev->si_drv1 == NULL)
+ return (EBADF);
+ sc = dev->si_drv1;
+
+ ACPI_SERIAL_BEGIN(hp);
+ if (sc->hpcmi_open_pid == 0) {
+ ret = EBADF;
+ }
+ else {
+ if (sc->hpcmi_bufptr != -1) {
+ sbuf_delete(&sc->hpcmi_sbuf);
+ sc->hpcmi_bufptr = -1;
+ }
+ sc->hpcmi_open_pid = 0;
+ ret = 0;
+ }
+ ACPI_SERIAL_END(hp);
+
+ return (ret);
+}
+
+/*
+ * Read from hpcmi bios information
+ */
+static int
+acpi_hp_hpcmi_read(struct cdev *dev, struct uio *buf, int flag)
+{
+ struct acpi_hp_softc *sc;
+ int pos, i, l, ret;
+ UINT8 instance;
+ UINT32 sequence;
+ int linesize = 1025;
+ char line[linesize];
+
+ if (dev == NULL || dev->si_drv1 == NULL)
+ return (EBADF);
+ sc = dev->si_drv1;
+
+ ACPI_SERIAL_BEGIN(hp);
+ if (sc->hpcmi_open_pid != buf->uio_td->td_proc->p_pid
+ || sc->hpcmi_bufptr == -1) {
+ ret = EBADF;
+ }
+ else {
+ if (!sbuf_done(&sc->hpcmi_sbuf)) {
+ if (sc->cmi_order_size < 0) {
+ sc->cmi_order_size = 0;
+ for (instance = 0; instance < 128;
+ ++instance) {
+ if (acpi_hp_get_cmi_block(sc->wmi_dev,
+ ACPI_HP_WMI_CMI_GUID, instance,
+ line, linesize, &sequence,
+ sc->cmi_detail)) {
+ instance = 128;
+ }
+ else {
+ pos = sc->cmi_order_size;
+ for (i=0;
+ i<sc->cmi_order_size && i<127;
+ ++i) {
+ if (sc->cmi_order[i].sequence > sequence) {
+ pos = i;
+ break;
+ }
+ }
+ for (i=sc->cmi_order_size;
+ i>pos;
+ --i) {
+ sc->cmi_order[i].sequence =
+ sc->cmi_order[i-1].sequence;
+ sc->cmi_order[i].instance =
+ sc->cmi_order[i-1].instance;
+ }
+ sc->cmi_order[pos].sequence =
+ sequence;
+ sc->cmi_order[pos].instance =
+ instance;
+ sc->cmi_order_size++;
+ }
+ }
+ }
+ for (i=0; i<sc->cmi_order_size; ++i) {
+ if (!acpi_hp_get_cmi_block(sc->wmi_dev,
+ ACPI_HP_WMI_CMI_GUID,
+ sc->cmi_order[i].instance, line, linesize,
+ &sequence, sc->cmi_detail)) {
+ sbuf_printf(&sc->hpcmi_sbuf, "%s\n", line);
+ }
+ }
+ sbuf_finish(&sc->hpcmi_sbuf);
+ }
+ if (sbuf_len(&sc->hpcmi_sbuf) <= 0) {
+ sbuf_delete(&sc->hpcmi_sbuf);
+ sc->hpcmi_bufptr = -1;
+ sc->hpcmi_open_pid = 0;
+ ret = ENOMEM;
+ } else {
+ l = min(buf->uio_resid, sbuf_len(&sc->hpcmi_sbuf) -
+ sc->hpcmi_bufptr);
+ ret = (l > 0)?uiomove(sbuf_data(&sc->hpcmi_sbuf) +
+ sc->hpcmi_bufptr, l, buf) : 0;
+ sc->hpcmi_bufptr += l;
+ }
+ }
+ ACPI_SERIAL_END(hp);
+
+ return (ret);
+}
diff --git a/sys/dev/acpi_support/acpi_wmi.c b/sys/dev/acpi_support/acpi_wmi.c
new file mode 100644
index 000000000000..3f4b511f1d3e
--- /dev/null
+++ b/sys/dev/acpi_support/acpi_wmi.c
@@ -0,0 +1,1006 @@
+/*-
+ * Copyright (c) 2009 Michael Gmelin <freebsd@grem.de>
+ * 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$");
+
+/*
+ * Driver for acpi-wmi mapping, provides an interface for vendor specific
+ * implementations (e.g. HP and Acer laptops).
+ * Inspired by the ACPI-WMI mapping driver (c) 2008-2008 Carlos Corbacho which
+ * implements this functionality for Linux.
+ *
+ * WMI and ACPI: http://www.microsoft.com/whdc/system/pnppwr/wmi/wmi-acpi.mspx
+ * acpi-wmi for Linux: http://www.kernel.org
+ */
+
+#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/malloc.h>
+#include <sys/sbuf.h>
+#include <sys/module.h>
+#include <sys/bus.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"
+
+MALLOC_DEFINE(M_ACPIWMI, "acpiwmi", "ACPI-WMI mapping");
+
+#define _COMPONENT ACPI_OEM
+ACPI_MODULE_NAME("ACPI_WMI");
+
+#define ACPI_WMI_REGFLAG_EXPENSIVE 0x1 /* GUID flag: Expensive operation */
+#define ACPI_WMI_REGFLAG_METHOD 0x2 /* GUID flag: Method call */
+#define ACPI_WMI_REGFLAG_STRING 0x4 /* GUID flag: String */
+#define ACPI_WMI_REGFLAG_EVENT 0x8 /* GUID flag: Event */
+
+/*
+ * acpi_wmi driver private structure
+ */
+struct acpi_wmi_softc {
+ device_t wmi_dev; /* wmi device id */
+ ACPI_HANDLE wmi_handle; /* handle of the PNP0C14 node */
+ device_t ec_dev; /* acpi_ec0 */
+ struct cdev *wmistat_dev_t; /* wmistat device handle */
+ struct sbuf wmistat_sbuf; /* sbuf for /dev/wmistat output */
+ pid_t wmistat_open_pid; /* pid operating on /dev/wmistat */
+ int wmistat_bufptr; /* /dev/wmistat ptr to buffer position */
+};
+
+/*
+ * Struct that holds information about
+ * about a single GUID entry in _WDG
+ */
+struct guid_info {
+ char guid[16]; /* 16 byte non human readable GUID */
+ char oid[2]; /* object id or event notify id (first byte) */
+ UINT8 max_instance; /* highest instance known for this GUID */
+ UINT8 flags; /* ACPI_WMI_REGFLAG_%s */
+};
+
+/* WExx event generation state (on/off) */
+enum event_generation_state {
+ EVENT_GENERATION_ON = 1,
+ EVENT_GENERATION_OFF = 0
+};
+
+
+/*
+ * Information about one entry in _WDG.
+ * List of those is used to lookup information by GUID.
+ */
+struct wmi_info {
+ TAILQ_ENTRY(wmi_info) wmi_list;
+ struct guid_info ginfo; /* information on guid */
+ ACPI_NOTIFY_HANDLER event_handler;/* client provided event handler */
+ void *event_handler_user_data; /* ev handler cookie */
+};
+
+TAILQ_HEAD(wmi_info_list_head, wmi_info)
+ wmi_info_list = TAILQ_HEAD_INITIALIZER(wmi_info_list);
+
+ACPI_SERIAL_DECL(acpi_wmi, "ACPI-WMI Mapping");
+
+/* public interface - declaration */
+/* standard device interface*/
+static int acpi_wmi_probe(device_t dev);
+static int acpi_wmi_attach(device_t dev);
+static int acpi_wmi_detach(device_t dev);
+/* see acpi_wmi_if.m */
+static int acpi_wmi_provides_guid_string_method(device_t dev,
+ const char *guid_string);
+static ACPI_STATUS acpi_wmi_evaluate_call_method(device_t dev,
+ const char *guid_string, UINT8 instance,
+ UINT32 method_id, const ACPI_BUFFER *in,
+ ACPI_BUFFER *out);
+static ACPI_STATUS acpi_wmi_install_event_handler_method(device_t dev,
+ const char *guid_string, ACPI_NOTIFY_HANDLER handler,
+ void *data);
+static ACPI_STATUS acpi_wmi_remove_event_handler_method(device_t dev,
+ const char *guid_string);
+static ACPI_STATUS acpi_wmi_get_event_data_method(device_t dev,
+ UINT32 event_id, ACPI_BUFFER *out);
+static ACPI_STATUS acpi_wmi_get_block_method(device_t dev,
+ const char *guid_string,
+ UINT8 instance, ACPI_BUFFER *out);
+static ACPI_STATUS acpi_wmi_set_block_method(device_t dev,
+ const char *guid_string,
+ UINT8 instance, const ACPI_BUFFER *in);
+/* private interface - declaration */
+/* callbacks */
+static void acpi_wmi_notify_handler(ACPI_HANDLE h, UINT32 notify,
+ void *context);
+static ACPI_STATUS acpi_wmi_ec_handler(UINT32 function,
+ ACPI_PHYSICAL_ADDRESS address, UINT32 width,
+ ACPI_INTEGER *value, void *context,
+ void *region_context);
+/* helpers */
+static ACPI_STATUS acpi_wmi_read_wdg_blocks(ACPI_HANDLE h);
+static ACPI_STATUS acpi_wmi_toggle_we_event_generation(device_t dev,
+ struct wmi_info *winfo,
+ enum event_generation_state state);
+static int acpi_wmi_guid_string_to_guid(const UINT8 *guid_string,
+ UINT8 *guid);
+static struct wmi_info* acpi_wmi_lookup_wmi_info_by_guid_string(
+ const char *guid_string);
+
+static d_open_t acpi_wmi_wmistat_open;
+static d_close_t acpi_wmi_wmistat_close;
+static d_read_t acpi_wmi_wmistat_read;
+
+/* handler /dev/wmistat device */
+static struct cdevsw wmistat_cdevsw = {
+ .d_version = D_VERSION,
+ .d_open = acpi_wmi_wmistat_open,
+ .d_close = acpi_wmi_wmistat_close,
+ .d_read = acpi_wmi_wmistat_read,
+ .d_name = "wmistat",
+};
+
+
+static device_method_t acpi_wmi_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, acpi_wmi_probe),
+ DEVMETHOD(device_attach, acpi_wmi_attach),
+ DEVMETHOD(device_detach, acpi_wmi_detach),
+
+ /* acpi_wmi interface */
+ DEVMETHOD(acpi_wmi_provides_guid_string,
+ acpi_wmi_provides_guid_string_method),
+ DEVMETHOD(acpi_wmi_evaluate_call, acpi_wmi_evaluate_call_method),
+ DEVMETHOD(acpi_wmi_install_event_handler,
+ acpi_wmi_install_event_handler_method),
+ DEVMETHOD(acpi_wmi_remove_event_handler,
+ acpi_wmi_remove_event_handler_method),
+ DEVMETHOD(acpi_wmi_get_event_data, acpi_wmi_get_event_data_method),
+ DEVMETHOD(acpi_wmi_get_block, acpi_wmi_get_block_method),
+ DEVMETHOD(acpi_wmi_set_block, acpi_wmi_set_block_method),
+
+ {0, 0}
+};
+
+static driver_t acpi_wmi_driver = {
+ "acpi_wmi",
+ acpi_wmi_methods,
+ sizeof(struct acpi_wmi_softc),
+};
+
+static devclass_t acpi_wmi_devclass;
+DRIVER_MODULE(acpi_wmi, acpi, acpi_wmi_driver, acpi_wmi_devclass, 0, 0);
+MODULE_VERSION(acpi_wmi, 1);
+MODULE_DEPEND(acpi_wmi, acpi, 1, 1, 1);
+static char *wmi_ids[] = {"PNP0C14", "PNP0c14", NULL};
+
+/*
+ * Probe for the PNP0C14 ACPI node
+ */
+static int
+acpi_wmi_probe(device_t dev)
+{
+ if (acpi_disabled("wmi") ||
+ ACPI_ID_PROBE(device_get_parent(dev), dev, wmi_ids) == NULL)
+ return (ENXIO);
+ device_set_desc(dev, "ACPI-WMI mapping");
+
+ return (0);
+}
+
+/*
+ * Attach the device by:
+ * - Looking for the first ACPI EC device
+ * - Install the notify handler
+ * - Install the EC address space handler
+ * - Look for the _WDG node and read GUID information blocks
+ */
+static int
+acpi_wmi_attach(device_t dev)
+{
+ struct acpi_wmi_softc *sc;
+ int ret;
+ ACPI_STATUS status;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+ sc = device_get_softc(dev);
+ ret = ENXIO;
+
+ ACPI_SERIAL_BEGIN(acpi_wmi);
+ sc->wmi_dev = dev;
+ sc->wmi_handle = acpi_get_handle(dev);
+ TAILQ_INIT(&wmi_info_list);
+ /* XXX Only works with one EC, but nearly all systems only have one. */
+ if ((sc->ec_dev = devclass_get_device(devclass_find("acpi_ec"), 0))
+ == NULL)
+ device_printf(dev, "cannot find EC device\n");
+ else if (ACPI_FAILURE((status = AcpiInstallNotifyHandler(sc->wmi_handle,
+ ACPI_DEVICE_NOTIFY, acpi_wmi_notify_handler, sc))))
+ device_printf(sc->wmi_dev, "couldn't install notify handler - %s\n",
+ AcpiFormatException(status));
+ else if (ACPI_FAILURE((status = AcpiInstallAddressSpaceHandler(
+ sc->wmi_handle, ACPI_ADR_SPACE_EC, acpi_wmi_ec_handler,
+ NULL, sc)))) {
+ device_printf(sc->wmi_dev, "couldn't install EC handler - %s\n",
+ AcpiFormatException(status));
+ AcpiRemoveNotifyHandler(sc->wmi_handle, ACPI_DEVICE_NOTIFY,
+ acpi_wmi_notify_handler);
+ } else if (ACPI_FAILURE((status = acpi_wmi_read_wdg_blocks(
+ sc->wmi_handle)))) {
+ device_printf(sc->wmi_dev, "couldn't parse _WDG - %s\n",
+ AcpiFormatException(status));
+ AcpiRemoveNotifyHandler(sc->wmi_handle, ACPI_DEVICE_NOTIFY,
+ acpi_wmi_notify_handler);
+ AcpiRemoveAddressSpaceHandler(sc->wmi_handle, ACPI_ADR_SPACE_EC,
+ acpi_wmi_ec_handler);
+ } else {
+ sc->wmistat_dev_t = make_dev(&wmistat_cdevsw, 0, UID_ROOT,
+ GID_WHEEL, 0644, "wmistat");
+ sc->wmistat_dev_t->si_drv1 = sc;
+ sc->wmistat_open_pid = 0;
+ sc->wmistat_bufptr = -1;
+ ret = 0;
+ }
+ ACPI_SERIAL_END(acpi_wmi);
+
+ return (ret);
+}
+
+/*
+ * Detach the driver by:
+ * - Removing notification handler
+ * - Removing address space handler
+ * - Turning off event generation for all WExx event activated by
+ * child drivers
+ */
+static int
+acpi_wmi_detach(device_t dev)
+{
+ struct wmi_info *winfo, *tmp;
+ struct acpi_wmi_softc *sc;
+ int ret;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+ sc = device_get_softc(dev);
+ ACPI_SERIAL_BEGIN(acpi_wmi);
+
+ if (sc->wmistat_open_pid != 0) {
+ ret = EBUSY;
+ } else {
+ AcpiRemoveNotifyHandler(sc->wmi_handle, ACPI_DEVICE_NOTIFY,
+ acpi_wmi_notify_handler);
+ AcpiRemoveAddressSpaceHandler(sc->wmi_handle,
+ ACPI_ADR_SPACE_EC, acpi_wmi_ec_handler);
+ TAILQ_FOREACH_SAFE(winfo, &wmi_info_list, wmi_list, tmp) {
+ if (winfo->event_handler)
+ acpi_wmi_toggle_we_event_generation(dev,
+ winfo, EVENT_GENERATION_OFF);
+ TAILQ_REMOVE(&wmi_info_list, winfo, wmi_list);
+ free(winfo, M_ACPIWMI);
+ }
+ if (sc->wmistat_bufptr != -1) {
+ sbuf_delete(&sc->wmistat_sbuf);
+ sc->wmistat_bufptr = -1;
+ }
+ sc->wmistat_open_pid = 0;
+ destroy_dev(sc->wmistat_dev_t);
+ ret = 0;
+ }
+ ACPI_SERIAL_END(acpi_wmi);
+
+ return (ret);
+}
+
+
+/*
+ * Check if the given GUID string (human readable format
+ * AABBCCDD-EEFF-GGHH-IIJJ-KKLLMMNNOOPP)
+ * exists within _WDG
+ */
+static int
+acpi_wmi_provides_guid_string_method(device_t dev, const char *guid_string)
+{
+ int ret;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+ ACPI_SERIAL_BEGIN(acpi_wmi);
+ ret = (acpi_wmi_lookup_wmi_info_by_guid_string(guid_string) == NULL)?0:1;
+ ACPI_SERIAL_END(acpi_wmi);
+
+ return (ret);
+}
+
+/*
+ * Call a method "method_id" on the given GUID block
+ * write result into user provided output buffer
+ */
+static ACPI_STATUS
+acpi_wmi_evaluate_call_method(device_t dev, const char *guid_string,
+ UINT8 instance, UINT32 method_id, const ACPI_BUFFER *in, ACPI_BUFFER *out)
+{
+ ACPI_OBJECT params[3];
+ ACPI_OBJECT_LIST input;
+ char method[5] = "WMxx";
+ struct wmi_info *winfo;
+ struct acpi_wmi_softc *sc;
+ ACPI_STATUS status;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+
+ sc = device_get_softc(dev);
+ ACPI_SERIAL_BEGIN(acpi_wmi);
+ if ((winfo = acpi_wmi_lookup_wmi_info_by_guid_string(guid_string))
+ == NULL)
+ status = AE_NOT_FOUND;
+ else if (!(winfo->ginfo.flags & ACPI_WMI_REGFLAG_METHOD))
+ status = AE_BAD_DATA;
+ else if (instance > winfo->ginfo.max_instance)
+ status = AE_BAD_PARAMETER;
+ else {
+ params[0].Type = ACPI_TYPE_INTEGER;
+ params[0].Integer.Value = instance;
+ params[1].Type = ACPI_TYPE_INTEGER;
+ params[1].Integer.Value = method_id;
+ input.Pointer = params;
+ input.Count = 2;
+ if (in) {
+ params[2].Type =
+ (winfo->ginfo.flags & ACPI_WMI_REGFLAG_STRING)
+ ?ACPI_TYPE_STRING:ACPI_TYPE_BUFFER;
+ params[2].Buffer.Length = in->Length;
+ params[2].Buffer.Pointer = in->Pointer;
+ input.Count = 3;
+ }
+ method[2] = winfo->ginfo.oid[0];
+ method[3] = winfo->ginfo.oid[1];
+ status = AcpiEvaluateObject(sc->wmi_handle, method,
+ &input, out);
+ }
+ ACPI_SERIAL_END(acpi_wmi);
+
+ return (status);
+}
+
+/*
+ * Install a user provided event_handler on the given GUID
+ * provided *data will be passed on callback
+ * If there is already an existing event handler registered it will be silently
+ * discarded
+ */
+static ACPI_STATUS
+acpi_wmi_install_event_handler_method(device_t dev, const char *guid_string,
+ ACPI_NOTIFY_HANDLER event_handler, void *data)
+{
+ struct wmi_info *winfo;
+ ACPI_STATUS status;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+
+ status = AE_OK;
+ ACPI_SERIAL_BEGIN(acpi_wmi);
+ if (guid_string == NULL || event_handler == NULL)
+ status = AE_BAD_PARAMETER;
+ else if ((winfo = acpi_wmi_lookup_wmi_info_by_guid_string(guid_string))
+ == NULL)
+ status = AE_NOT_EXIST;
+ else if (winfo->event_handler != NULL ||
+ (status = acpi_wmi_toggle_we_event_generation(dev, winfo,
+ EVENT_GENERATION_ON)) == AE_OK) {
+ winfo->event_handler = event_handler;
+ winfo->event_handler_user_data = data;
+ }
+ ACPI_SERIAL_END(acpi_wmi);
+
+ return (status);
+}
+
+/*
+ * Remove a previously installed event handler from the given GUID
+ * If there was none installed, this call is silently discarded and
+ * reported as AE_OK
+ */
+static ACPI_STATUS
+acpi_wmi_remove_event_handler_method(device_t dev, const char *guid_string)
+{
+ struct wmi_info *winfo;
+ ACPI_STATUS status;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+
+ status = AE_OK;
+ ACPI_SERIAL_BEGIN(acpi_wmi);
+ if (guid_string &&
+ (winfo = acpi_wmi_lookup_wmi_info_by_guid_string(guid_string))
+ != NULL && winfo->event_handler) {
+ status = acpi_wmi_toggle_we_event_generation(dev, winfo,
+ EVENT_GENERATION_OFF);
+ winfo->event_handler = NULL;
+ winfo->event_handler_user_data = NULL;
+ }
+ ACPI_SERIAL_END(acpi_wmi);
+
+ return (status);
+}
+
+/*
+ * Get details on an event received through a callback registered
+ * through ACPI_WMI_REMOVE_EVENT_HANDLER into a user provided output buffer.
+ * (event_id equals "notify" passed in the callback)
+ */
+static ACPI_STATUS
+acpi_wmi_get_event_data_method(device_t dev, UINT32 event_id, ACPI_BUFFER *out)
+{
+ ACPI_OBJECT_LIST input;
+ ACPI_OBJECT params[1];
+ struct acpi_wmi_softc *sc;
+ struct wmi_info *winfo;
+ ACPI_STATUS status;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+
+ sc = device_get_softc(dev);
+ status = AE_NOT_FOUND;
+ ACPI_SERIAL_BEGIN(acpi_wmi);
+ params[0].Type = ACPI_TYPE_INTEGER;
+ params[0].Integer.Value = event_id;
+ input.Pointer = params;
+ input.Count = 1;
+ TAILQ_FOREACH(winfo, &wmi_info_list, wmi_list) {
+ if ((winfo->ginfo.flags & ACPI_WMI_REGFLAG_EVENT) &&
+ ((UINT8) winfo->ginfo.oid[0] == event_id)) {
+ status = AcpiEvaluateObject(sc->wmi_handle, "_WED",
+ &input, out);
+ break;
+ }
+ }
+ ACPI_SERIAL_END(acpi_wmi);
+
+ return (status);
+}
+
+/*
+ * Read a block of data from the given GUID (using WQxx (query))
+ * Will be returned in a user provided buffer (out).
+ * If the method is marked as expensive (ACPI_WMI_REGFLAG_EXPENSIVE)
+ * we will first call the WCxx control method to lock the node to
+ * lock the node for data collection and release it afterwards.
+ * (Failed WCxx calls are ignored to "support" broken implementations)
+ */
+static ACPI_STATUS
+acpi_wmi_get_block_method(device_t dev, const char *guid_string, UINT8 instance,
+ ACPI_BUFFER *out)
+{
+ char wc_method[5] = "WCxx";
+ char wq_method[5] = "WQxx";
+ ACPI_OBJECT_LIST wc_input;
+ ACPI_OBJECT_LIST wq_input;
+ ACPI_OBJECT wc_params[1];
+ ACPI_OBJECT wq_params[1];
+ ACPI_HANDLE wc_handle;
+ struct acpi_wmi_softc *sc;
+ struct wmi_info *winfo;
+ ACPI_STATUS status;
+ ACPI_STATUS wc_status;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+
+ sc = device_get_softc(dev);
+ wc_status = AE_ERROR;
+ ACPI_SERIAL_BEGIN(acpi_wmi);
+ if (guid_string == NULL || out == NULL)
+ status = AE_BAD_PARAMETER;
+ else if ((winfo = acpi_wmi_lookup_wmi_info_by_guid_string(guid_string))
+ == NULL)
+ status = AE_ERROR;
+ else if (instance > winfo->ginfo.max_instance)
+ status = AE_BAD_PARAMETER;
+ else if ((winfo->ginfo.flags & ACPI_WMI_REGFLAG_EVENT) ||
+ (winfo->ginfo.flags & ACPI_WMI_REGFLAG_METHOD))
+ status = AE_ERROR;
+ else {
+ wq_params[0].Type = ACPI_TYPE_INTEGER;
+ wq_params[0].Integer.Value = instance;
+ wq_input.Pointer = wq_params;
+ wq_input.Count = 1;
+ if (winfo->ginfo.flags & ACPI_WMI_REGFLAG_EXPENSIVE) {
+ wc_params[0].Type = ACPI_TYPE_INTEGER;
+ wc_params[0].Integer.Value = 1;
+ wc_input.Pointer = wc_params;
+ wc_input.Count = 1;
+ wc_method[2] = winfo->ginfo.oid[0];
+ wc_method[3] = winfo->ginfo.oid[1];
+ wc_status = AcpiGetHandle(sc->wmi_handle, wc_method,
+ &wc_handle);
+ if (ACPI_SUCCESS(wc_status))
+ wc_status = AcpiEvaluateObject(wc_handle,
+ wc_method, &wc_input, NULL);
+ }
+ wq_method[2] = winfo->ginfo.oid[0];
+ wq_method[3] = winfo->ginfo.oid[1];
+ status = AcpiEvaluateObject(sc->wmi_handle, wq_method,
+ &wq_input, out);
+ if ((winfo->ginfo.flags & ACPI_WMI_REGFLAG_EXPENSIVE)
+ && ACPI_SUCCESS(wc_status)) {
+ wc_params[0].Integer.Value = 0;
+ status = AcpiEvaluateObject(wc_handle, wc_method,
+ &wc_input, NULL); /* XXX this might be
+ the wrong status to
+ return? */
+ }
+ }
+ ACPI_SERIAL_END(acpi_wmi);
+
+ return (status);
+}
+
+/*
+ * Write a block of data to the given GUID (using WSxx)
+ */
+static ACPI_STATUS
+acpi_wmi_set_block_method(device_t dev, const char *guid_string, UINT8 instance,
+ const ACPI_BUFFER *in)
+{
+ char method[5] = "WSxx";
+ ACPI_OBJECT_LIST input;
+ ACPI_OBJECT params[2];
+ struct wmi_info *winfo;
+ struct acpi_wmi_softc *sc;
+ ACPI_STATUS status;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+
+ sc = device_get_softc(dev);
+ ACPI_SERIAL_BEGIN(acpi_wmi);
+ if (guid_string == NULL || in == NULL)
+ status = AE_BAD_DATA;
+ else if ((winfo = acpi_wmi_lookup_wmi_info_by_guid_string(guid_string))
+ == NULL)
+ status = AE_ERROR;
+ else if (instance > winfo->ginfo.max_instance)
+ status = AE_BAD_PARAMETER;
+ else if ((winfo->ginfo.flags & ACPI_WMI_REGFLAG_EVENT) ||
+ (winfo->ginfo.flags & ACPI_WMI_REGFLAG_METHOD))
+ status = AE_ERROR;
+ else {
+ params[0].Type = ACPI_TYPE_INTEGER;
+ params[0].Integer.Value = instance;
+ input.Pointer = params;
+ input.Count = 2;
+ params[1].Type = (winfo->ginfo.flags & ACPI_WMI_REGFLAG_STRING)
+ ?ACPI_TYPE_STRING:ACPI_TYPE_BUFFER;
+ params[1].Buffer.Length = in->Length;
+ params[1].Buffer.Pointer = in->Pointer;
+ method[2] = winfo->ginfo.oid[0];
+ method[3] = winfo->ginfo.oid[1];
+ status = AcpiEvaluateObject(sc->wmi_handle, method,
+ &input, NULL);
+ }
+ ACPI_SERIAL_END(acpi_wmi);
+
+ return (status);
+}
+
+/*
+ * Handle events received and dispatch them to
+ * stakeholders that registered through ACPI_WMI_INSTALL_EVENT_HANDLER
+ */
+static void
+acpi_wmi_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context)
+{
+ ACPI_NOTIFY_HANDLER handler;
+ void *handler_data;
+ struct wmi_info *winfo;
+
+ ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
+
+ handler = NULL;
+ handler_data = NULL;
+ ACPI_SERIAL_BEGIN(acpi_wmi);
+ TAILQ_FOREACH(winfo, &wmi_info_list, wmi_list) {
+ if ((winfo->ginfo.flags & ACPI_WMI_REGFLAG_EVENT) &&
+ ((UINT8) winfo->ginfo.oid[0] == notify)) {
+ if (winfo->event_handler) {
+ handler = winfo->event_handler;
+ handler_data = winfo->event_handler_user_data;
+ break;
+ }
+ }
+ }
+ ACPI_SERIAL_END(acpi_wmi);
+ if (handler) {
+ handler(h, notify, handler_data);
+ }
+}
+
+/*
+ * Handle EC address space notifications reveived on the WDG node
+ * (this mimics EcAddressSpaceHandler in acpi_ec.c)
+ */
+static ACPI_STATUS
+acpi_wmi_ec_handler(UINT32 function, ACPI_PHYSICAL_ADDRESS address,
+ UINT32 width, ACPI_INTEGER *value, void *context,
+ void *region_context)
+{
+ struct acpi_wmi_softc *sc;
+ int i;
+ ACPI_INTEGER ec_data;
+ UINT8 ec_addr;
+ ACPI_STATUS status;
+
+ ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, (UINT32)Address);
+
+ sc = (struct acpi_wmi_softc *)context;
+ if (width % 8 != 0 || value == NULL || context == NULL)
+ return (AE_BAD_PARAMETER);
+ if (address + (width / 8) - 1 > 0xFF)
+ return (AE_BAD_ADDRESS);
+ if (function == ACPI_READ)
+ *value = 0;
+ ec_addr = address;
+ status = AE_ERROR;
+
+ for (i = 0; i < width; i += 8, ++ec_addr) {
+ switch (function) {
+ case ACPI_READ:
+ status = ACPI_EC_READ(sc->ec_dev, ec_addr, &ec_data, 1);
+ if (ACPI_SUCCESS(status))
+ *value |= ((ACPI_INTEGER)ec_data) << i;
+ break;
+ case ACPI_WRITE:
+ ec_data = (UINT8)((*value) >> i);
+ status = ACPI_EC_WRITE(sc->ec_dev, ec_addr, ec_data, 1);
+ break;
+ default:
+ device_printf(sc->wmi_dev,
+ "invalid acpi_wmi_ec_handler function %d\n",
+ function);
+ status = AE_BAD_PARAMETER;
+ break;
+ }
+ if (ACPI_FAILURE(status))
+ break;
+ }
+
+ return (status);
+}
+
+/*
+ * Read GUID blocks from the _WDG node
+ * into wmi_info_list.
+ */
+static ACPI_STATUS
+acpi_wmi_read_wdg_blocks(ACPI_HANDLE h)
+{
+ ACPI_BUFFER out = {ACPI_ALLOCATE_BUFFER, NULL};
+ struct guid_info *ginfo;
+ ACPI_OBJECT *obj;
+ struct wmi_info *winfo;
+ UINT32 i;
+ UINT32 wdg_block_count;
+ ACPI_STATUS status;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+
+ ACPI_SERIAL_ASSERT(acpi_wmi);
+ if (ACPI_FAILURE(status = AcpiEvaluateObject(h, "_WDG", NULL, &out)))
+ return (status);
+ obj = (ACPI_OBJECT*) out.Pointer;
+ wdg_block_count = obj->Buffer.Length / sizeof(struct guid_info);
+ if ((ginfo = malloc(obj->Buffer.Length, M_ACPIWMI, M_NOWAIT))
+ == NULL) {
+ AcpiOsFree(out.Pointer);
+ return (AE_NO_MEMORY);
+ }
+ memcpy(ginfo, obj->Buffer.Pointer, obj->Buffer.Length);
+ for (i = 0; i < wdg_block_count; ++i) {
+ if ((winfo = malloc(sizeof(struct wmi_info), M_ACPIWMI,
+ M_NOWAIT | M_ZERO)) == NULL) {
+ AcpiOsFree(out.Pointer);
+ free(ginfo, M_ACPIWMI);
+ return (AE_NO_MEMORY);
+ }
+ winfo->ginfo = ginfo[i];
+ TAILQ_INSERT_TAIL(&wmi_info_list, winfo, wmi_list);
+ }
+ AcpiOsFree(out.Pointer);
+ free(ginfo, M_ACPIWMI);
+
+ return (status);
+}
+
+/*
+ * Toggle event generation in for the given GUID (passed by winfo)
+ * Turn on to get notified (through acpi_wmi_notify_handler) if events happen
+ * on the given GUID.
+ */
+static ACPI_STATUS
+acpi_wmi_toggle_we_event_generation(device_t dev, struct wmi_info *winfo,
+ enum event_generation_state state)
+{
+ char method[5] = "WExx";
+ ACPI_OBJECT_LIST input;
+ ACPI_OBJECT params[1];
+ struct acpi_wmi_softc *sc;
+ ACPI_STATUS status;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+
+ sc = device_get_softc(dev);
+ ACPI_SERIAL_ASSERT(acpi_wmi);
+ params[0].Type = ACPI_TYPE_INTEGER;
+ params[0].Integer.Value = state==EVENT_GENERATION_ON?1:0;
+ input.Pointer = params;
+ input.Count = 1;
+
+ UINT8 hi = ((UINT8) winfo->ginfo.oid[0]) >> 4;
+ UINT8 lo = ((UINT8) winfo->ginfo.oid[0]) & 0xf;
+ method[2] = (hi > 9 ? hi + 55: hi + 48);
+ method[3] = (lo > 9 ? lo + 55: lo + 48);
+ status = AcpiEvaluateObject(sc->wmi_handle, method, &input, NULL);
+ if (status == AE_NOT_FOUND) status = AE_OK;
+
+ return (status);
+}
+
+/*
+ * Convert given two digit hex string (hexin) to an UINT8 referenced
+ * by byteout.
+ * Return != 0 if the was a problem (invalid input)
+ */
+static __inline int acpi_wmi_hex_to_int(const UINT8 *hexin, UINT8 *byteout)
+{
+ unsigned int hi;
+ unsigned int lo;
+
+ hi = hexin[0];
+ lo = hexin[1];
+ if ('0' <= hi && hi <= '9')
+ hi -= '0';
+ else if ('A' <= hi && hi <= 'F')
+ hi -= ('A' - 10);
+ else if ('a' <= hi && hi <= 'f')
+ hi -= ('a' - 10);
+ else
+ return (1);
+ if ('0' <= lo && lo <= '9')
+ lo -= '0';
+ else if ('A' <= lo && lo <= 'F')
+ lo -= ('A' - 10);
+ else if ('a' <= lo && lo <= 'f')
+ lo -= ('a' - 10);
+ else
+ return (1);
+ *byteout = (hi << 4) + lo;
+
+ return (0);
+}
+
+/*
+ * Convert a human readable 36 character GUID into a 16byte
+ * machine readable one.
+ * The basic algorithm looks as follows:
+ * Input: AABBCCDD-EEFF-GGHH-IIJJ-KKLLMMNNOOPP
+ * Output: DCBAFEHGIJKLMNOP
+ * (AA BB CC etc. represent two digit hex numbers == bytes)
+ * Return != 0 if passed guid string is invalid
+ */
+static int
+acpi_wmi_guid_string_to_guid(const UINT8 *guid_string, UINT8 *guid)
+{
+ static const int mapping[20] = {3, 2, 1, 0, -1, 5, 4, -1, 7, 6, -1,
+ 8, 9, -1, 10, 11, 12, 13, 14, 15};
+ int i;
+
+ for (i = 0; i < 20; ++i, ++guid_string) {
+ if (mapping[i] >= 0) {
+ if (acpi_wmi_hex_to_int(guid_string,
+ &guid[mapping[i]]))
+ return (-1);
+ ++guid_string;
+ } else if (*guid_string != '-')
+ return (-1);
+ }
+
+ return (0);
+}
+
+/*
+ * Lookup a wmi_info structure in wmi_list based on a
+ * human readable GUID
+ * Return NULL if the GUID is unknown in the _WDG
+ */
+static struct wmi_info*
+acpi_wmi_lookup_wmi_info_by_guid_string(const char *guid_string)
+{
+ char guid[16];
+ struct wmi_info *winfo;
+
+ ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
+
+ ACPI_SERIAL_ASSERT(acpi_wmi);
+
+ if (!acpi_wmi_guid_string_to_guid(guid_string, guid)) {
+ TAILQ_FOREACH(winfo, &wmi_info_list, wmi_list) {
+ if (!memcmp(winfo->ginfo.guid, guid, 16)) {
+ return (winfo);
+ }
+ }
+ }
+
+ return (NULL);
+}
+
+/*
+ * open wmistat device
+ */
+static int
+acpi_wmi_wmistat_open(struct cdev* dev, int flags, int mode, struct thread *td)
+{
+ struct acpi_wmi_softc *sc;
+ int ret;
+
+ if (dev == NULL || dev->si_drv1 == NULL)
+ return (EBADF);
+ sc = dev->si_drv1;
+
+ ACPI_SERIAL_BEGIN(acpi_wmi);
+ if (sc->wmistat_open_pid != 0) {
+ ret = EBUSY;
+ }
+ else {
+ if (sbuf_new(&sc->wmistat_sbuf, NULL, 4096, SBUF_AUTOEXTEND)
+ == NULL) {
+ ret = ENXIO;
+ } else {
+ sc->wmistat_open_pid = td->td_proc->p_pid;
+ sc->wmistat_bufptr = 0;
+ ret = 0;
+ }
+ }
+ ACPI_SERIAL_END(acpi_wmi);
+
+ return (ret);
+}
+
+/*
+ * close wmistat device
+ */
+static int
+acpi_wmi_wmistat_close(struct cdev* dev, int flags, int mode,
+ struct thread *td)
+{
+ struct acpi_wmi_softc *sc;
+ int ret;
+
+ if (dev == NULL || dev->si_drv1 == NULL)
+ return (EBADF);
+ sc = dev->si_drv1;
+
+ ACPI_SERIAL_BEGIN(acpi_wmi);
+ if (sc->wmistat_open_pid == 0) {
+ ret = EBADF;
+ }
+ else {
+ if (sc->wmistat_bufptr != -1) {
+ sbuf_delete(&sc->wmistat_sbuf);
+ sc->wmistat_bufptr = -1;
+ }
+ sc->wmistat_open_pid = 0;
+ ret = 0;
+ }
+ ACPI_SERIAL_END(acpi_wmi);
+
+ return (ret);
+}
+
+/*
+ * Read from wmistat guid information
+ */
+static int
+acpi_wmi_wmistat_read(struct cdev *dev, struct uio *buf, int flag)
+{
+ struct acpi_wmi_softc *sc;
+ struct wmi_info *winfo;
+ int l;
+ int ret;
+ UINT8* guid;
+
+ if (dev == NULL || dev->si_drv1 == NULL)
+ return (EBADF);
+ sc = dev->si_drv1;
+
+ ACPI_SERIAL_BEGIN(acpi_wmi);
+ if (sc->wmistat_open_pid != buf->uio_td->td_proc->p_pid ||
+ sc->wmistat_bufptr == -1) {
+ ret = EBADF;
+ }
+ else {
+ if (!sbuf_done(&sc->wmistat_sbuf)) {
+ sbuf_printf(&sc->wmistat_sbuf, "GUID "
+ " INST EXPE METH STR "
+ "EVENT OID\n");
+ TAILQ_FOREACH(winfo, &wmi_info_list, wmi_list) {
+ guid = (UINT8*)winfo->ginfo.guid;
+ sbuf_printf(&sc->wmistat_sbuf,
+ "{%02X%02X%02X%02X-%02X%02X-"
+ "%02X%02X-%02X%02X-%02X%02X"
+ "%02X%02X%02X%02X} %3d %-5s",
+ guid[3], guid[2], guid[1], guid[0],
+ guid[5], guid[4],
+ guid[7], guid[6],
+ guid[8], guid[9],
+ guid[10], guid[11], guid[12],
+ guid[13], guid[14], guid[15],
+ winfo->ginfo.max_instance,
+ (winfo->ginfo.flags&
+ ACPI_WMI_REGFLAG_EXPENSIVE)?
+ "YES":"NO"
+ );
+ if (winfo->ginfo.flags&ACPI_WMI_REGFLAG_METHOD)
+ sbuf_printf(&sc->wmistat_sbuf,
+ "WM%c%c ",
+ winfo->ginfo.oid[0],
+ winfo->ginfo.oid[1]);
+ else
+ sbuf_printf(&sc->wmistat_sbuf, "NO ");
+ sbuf_printf(&sc->wmistat_sbuf, "%-4s",
+ (winfo->ginfo.flags&
+ ACPI_WMI_REGFLAG_STRING)?"YES":"NO"
+ );
+ if (winfo->ginfo.flags&ACPI_WMI_REGFLAG_EVENT)
+ sbuf_printf(&sc->wmistat_sbuf,
+ "0x%02X%s -\n",
+ (UINT8)winfo->ginfo.oid[0],
+ winfo->event_handler==NULL?
+ " ":"+");
+ else
+ sbuf_printf(&sc->wmistat_sbuf,
+ "NO %c%c\n",
+ winfo->ginfo.oid[0],
+ winfo->ginfo.oid[1]);
+ }
+ sbuf_finish(&sc->wmistat_sbuf);
+ }
+ if (sbuf_len(&sc->wmistat_sbuf) <= 0) {
+ sbuf_delete(&sc->wmistat_sbuf);
+ sc->wmistat_bufptr = -1;
+ sc->wmistat_open_pid = 0;
+ ret = ENOMEM;
+ } else {
+ l = min(buf->uio_resid, sbuf_len(&sc->wmistat_sbuf) -
+ sc->wmistat_bufptr);
+ ret = (l > 0)?uiomove(sbuf_data(&sc->wmistat_sbuf) +
+ sc->wmistat_bufptr, l, buf) : 0;
+ sc->wmistat_bufptr += l;
+ }
+ }
+ ACPI_SERIAL_END(acpi_wmi);
+
+ return (ret);
+}
diff --git a/sys/dev/acpi_support/acpi_wmi_if.m b/sys/dev/acpi_support/acpi_wmi_if.m
new file mode 100644
index 000000000000..88c01445fc84
--- /dev/null
+++ b/sys/dev/acpi_support/acpi_wmi_if.m
@@ -0,0 +1,144 @@
+#-
+# Copyright (c) 2009 Michael Gmelin
+# 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.
+#
+# $FreeBSD$
+#
+
+#include <sys/bus.h>
+#include <sys/types.h>
+#include <contrib/dev/acpica/include/acpi.h>
+
+INTERFACE acpi_wmi;
+
+#
+# Default implementation for acpi_wmi_generic_provides_guid_string().
+#
+CODE {
+ static int
+ acpi_wmi_generic_provides_guid_string(device_t dev, const char* guid_string)
+ {
+ return 0;
+ }
+};
+
+
+#
+# Check if given GUID exists in WMI
+#
+# device_t dev: Device to probe
+# const char* guid_string: String form of the GUID
+#
+METHOD int provides_guid_string {
+ device_t dev;
+ const char* guid_string;
+} DEFAULT acpi_wmi_generic_provides_guid_string;
+
+#
+# Evaluate a WMI method call
+#
+# device_t dev: Device to use
+# const char* guid_string: String form of the GUID
+# UINT8 instance: instance id
+# UINT32 method_id: method to call
+# const ACPI_BUFFER* in: input data
+# ACPI_BUFFER* out: output buffer
+#
+METHOD ACPI_STATUS evaluate_call {
+ device_t dev;
+ const char *guid_string;
+ UINT8 instance;
+ UINT32 method_id;
+ const ACPI_BUFFER *in;
+ ACPI_BUFFER *out;
+};
+
+#
+# Get content of a WMI block
+#
+# device_t dev: Device to use
+# const char* guid_string: String form of the GUID
+# UINT8 instance: instance id
+# ACPI_BUFFER* out: output buffer
+#
+METHOD ACPI_STATUS get_block {
+ device_t dev;
+ const char *guid_string;
+ UINT8 instance;
+ ACPI_BUFFER *out;
+};
+#
+# Write to a WMI data block
+#
+# device_t dev: Device to use
+# const char* guid_string: String form of the GUID
+# UINT8 instance: instance id
+# const ACPI_BUFFER* in: input data
+#
+METHOD ACPI_STATUS set_block {
+ device_t dev;
+ const char *guid_string;
+ UINT8 instance;
+ const ACPI_BUFFER *in;
+};
+
+#
+# Install wmi event handler
+#
+# device_t dev: Device to use
+# const char* guid_string: String form of the GUID
+# ACPI_NOTIFY_HANDLER handler: Handler
+# void* data: Payload
+#
+METHOD ACPI_STATUS install_event_handler {
+ device_t dev;
+ const char *guid_string;
+ ACPI_NOTIFY_HANDLER handler;
+ void *data;
+};
+
+#
+# Remove wmi event handler
+#
+# device_t dev: Device to use
+# const char* guid_string: String form of the GUID
+#
+METHOD ACPI_STATUS remove_event_handler {
+ device_t dev;
+ const char *guid_string;
+};
+
+
+#
+# Get event data associated to an event
+#
+# device_t dev: Device to use
+# UINT32 event_id: event id
+# ACPI_BUFFER* out: output buffer
+#
+METHOD ACPI_STATUS get_event_data {
+ device_t dev;
+ UINT32 event_id;
+ ACPI_BUFFER *out;
+};
diff --git a/sys/i386/conf/NOTES b/sys/i386/conf/NOTES
index a455ba9d1272..f442e2455e11 100644
--- a/sys/i386/conf/NOTES
+++ b/sys/i386/conf/NOTES
@@ -471,6 +471,9 @@ device tdfx_linux # Enable Linuxulator support
device acpi
options ACPI_DEBUG
+# ACPI WMI Mapping driver
+device acpi_wmi
+
# ACPI Asus Desktop Extras. (voltage, temp, fan)
device acpi_aiboost
@@ -480,6 +483,9 @@ device acpi_asus
# ACPI Fujitsu Extras (Buttons)
device acpi_fujitsu
+# ACPI extras driver for HP laptops
+device acpi_hp
+
# ACPI extras driver for IBM laptops
device acpi_ibm
diff --git a/sys/modules/acpi/Makefile b/sys/modules/acpi/Makefile
index 7bc565b9d999..daddea970067 100644
--- a/sys/modules/acpi/Makefile
+++ b/sys/modules/acpi/Makefile
@@ -4,8 +4,8 @@
SUBDIR= acpi
.endif
-SUBDIR+= acpi_aiboost acpi_asus acpi_fujitsu acpi_ibm \
+SUBDIR+= acpi_aiboost acpi_asus acpi_fujitsu acpi_hp acpi_ibm \
acpi_panasonic acpi_sony acpi_toshiba acpi_video \
- acpi_dock
+ acpi_dock acpi_wmi
.include <bsd.subdir.mk>
diff --git a/sys/modules/acpi/acpi_hp/Makefile b/sys/modules/acpi/acpi_hp/Makefile
new file mode 100644
index 000000000000..306bebeaad37
--- /dev/null
+++ b/sys/modules/acpi/acpi_hp/Makefile
@@ -0,0 +1,9 @@
+# $FreeBSD$
+
+.PATH: ${.CURDIR}/../../../dev/acpi_support
+
+KMOD= acpi_hp
+CFLAGS+=-I${.CURDIR}/../../../dev/acpi_support
+SRCS= acpi_hp.c opt_acpi.h acpi_if.h acpi_wmi_if.h device_if.h bus_if.h
+
+.include <bsd.kmod.mk>
diff --git a/sys/modules/acpi/acpi_wmi/Makefile b/sys/modules/acpi/acpi_wmi/Makefile
new file mode 100644
index 000000000000..bdeefe31676a
--- /dev/null
+++ b/sys/modules/acpi/acpi_wmi/Makefile
@@ -0,0 +1,9 @@
+# $FreeBSD$
+
+.PATH: ${.CURDIR}/../../../dev/acpi_support
+
+KMOD= acpi_wmi
+CFLAGS+=-I${.CURDIR}/../../../dev/acpi_support
+SRCS= acpi_wmi.c opt_acpi.h acpi_if.h acpi_wmi_if.h device_if.h bus_if.h
+
+.include <bsd.kmod.mk>
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-18 03:47:21 +0000