From owner-freebsd-acpi@FreeBSD.ORG Sun Jun 21 16:53:46 2009 Return-Path: Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 563BC1065680 for ; Sun, 21 Jun 2009 16:53:46 +0000 (UTC) (envelope-from freebsdusb@bindone.de) Received: from mail.bindone.de (mail.bindone.de [80.190.134.51]) by mx1.freebsd.org (Postfix) with SMTP id 2A20A8FC19 for ; Sun, 21 Jun 2009 16:53:41 +0000 (UTC) (envelope-from freebsdusb@bindone.de) Received: (qmail 92346 invoked by uid 89); 21 Jun 2009 16:53:40 -0000 Received: from unknown (HELO ufo.bindone.de) (mg@bindone.de@87.152.188.39) by mail.bindone.de with ESMTPA; 21 Jun 2009 16:53:40 -0000 Message-ID: <4A3E6563.7040400@bindone.de> Date: Sun, 21 Jun 2009 18:52:51 +0200 From: Michael User-Agent: Thunderbird 2.0.0.17pre (X11/20090202) MIME-Version: 1.0 To: Rui Paulo References: <4A3E1784.2050406@bindone.de> <5AFA3C27-D3DB-48DA-9AF3-9E14D11EEC61@freebsd.org> In-Reply-To: Content-Type: multipart/mixed; boundary="------------000302080806090206000000" Cc: freebsd-acpi@freebsd.org Subject: Re: Two new acpi modules, acpi_wmi and acpi_hp X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 21 Jun 2009 16:53:46 -0000 This is a multi-part message in MIME format. --------------000302080806090206000000 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Rui Paulo wrote: > On 21 Jun 2009, at 15:08, Rui Paulo wrote: > >> On 21 Jun 2009, at 12:20, Michael wrote: >> >>> Hello, >>> >>> I wrote two new acpi modules last year and finally found the time to fix >>> them, add some missing features and write man pages. >> >> Michael, this is great work! I'll review and see if we can ship it >> with 8.0! > > Michael, this looks good, but there are two style nits that we need to fix. > * we should try not going over the 80 column mark > * add a empty new line before every return > > If you could send me a new patch for 8.0 with these fixes, I'll commit > it (unless someone else has objections). > > Regards, > -- > Rui Paulo > Hi Rui, I figured that adding newlines in conditional returns makes no sense (see my last post), so I did reformat everything to be (close to) 80 columns a line add added newlines in front of returns at the end of a function. Please find attached the complete patch again (against clean 7.2-RELEASE) and the files that changed (acpi_hp.c and acpi_wmi.c). Btw, what is the normal adoption path for 7-STABLE (I would assume first it gets into HEAD and if there's interest there will be a backport to 7? It should at least work in there, even so for HP laptops my guess is that most users will use 8 anyway because of wireless support). cheers Michael --------------000302080806090206000000 Content-Type: text/plain; name="acpi_wmi_and_acpi_hp_v2.patch" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="acpi_wmi_and_acpi_hp_v2.patch" --- sys/i386/conf/NOTES~ 2008-12-29 04:48:16.000000000 +0100 +++ sys/i386/conf/NOTES 2009-06-21 12:10:16.000000000 +0100 @@ -471,6 +471,9 @@ options ACPI_DEBUG #!options ACPI_NO_SEMAPHORES +# ACPI WMI Mapping driver +device acpi_wmi + # ACPI Asus Desktop Extras. (voltage, temp, fan) device acpi_aiboost @@ -480,6 +483,9 @@ # 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 --- sys/modules/acpi/Makefile~ 2008-12-29 04:41:59.000000000 +0100 +++ sys/modules/acpi/Makefile 2009-06-21 12:10:59.000000000 +0100 @@ -4,7 +4,7 @@ SUBDIR= acpi .endif -SUBDIR+= acpi_aiboost acpi_asus acpi_fujitsu acpi_ibm \ +SUBDIR+= acpi_wmi acpi_aiboost acpi_asus acpi_fujitsu acpi_hp acpi_ibm \ acpi_panasonic acpi_sony acpi_toshiba acpi_video \ acpi_dock --- share/man/man4/man4.i386/acpi_hp.4~ 2009-06-21 12:09:58.000000000 +0200 +++ share/man/man4/man4.i386/acpi_hp.4 2009-06-21 12:10:21.229934511 +0200 @@ -0,0 +1,273 @@ +.\" 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. +.\" +.\" $FreeBSD$ +.\" +.Dd June 21, 2009 +.Dt ACPI_HP 4 i386 +.Os +.Sh NAME +.Nm acpi_hp +.Nd "ACPI extras driver for HP laptops" +.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_hp" +.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_hp_load="YES" +.Ed +.Sh DESCRIPTION +The +.Nm +driver provides support for ACPI-controlled features found on HP laptops +that use a WMI enabled BIOS (e.g. HP Compaq 8510p and 6510p). +.Pp +The main purpose of this driver is to provide an interface, +accessible via +.Xr sysctl 8 , +.Xr devd 8 and +.Xr devfs 8 , +through which applications can determine and change the status of +various laptop components and BIOS settings. +.Pp +.Ss Xr devd 8 Ss Events +Devd events received by +.Xr devd 8 +provide the following information: +.Pp +.Bl -tag -width "subsystem" -offset indent -compact +.It system +.Qq Li ACPI +.It subsystem +.Qq Li HP +.It type +The source of the event in the ACPI namespace. +The value depends on the model. +.It notify +Event code (see below). +.El +.Pp +Event codes: +.Pp +.Bl -tag -width "0xc0" -offset indent -compact +.It Li 0xc0 +WLAN on air status changed to 0 (not on air) +.It Li 0xc1 +WLAN on air status changed to 1 (on air) +.It Li 0xd0 +Bluetooth on air status changed to 0 (not on air) +.It Li 0xd1 +Bluetooth on air status changed to 1 (on air) +.It Li 0xe0 +WWAN on air status changed to 0 (not on air) +.It Li 0xe1 +WWAN on air status changed to 1 (on air) +.El +.Ss Xr devfs 8 Ss Device +You can read /dev/hpcmi to see your current BIOS settings. The detail level +can be adjusted by setting the sysctl +.Va cmi_detail +as described below. +.Sh SYSCTL VARIABLES +The following sysctls are currently implemented: +.Ss WLAN: +.Bl -tag -width indent +.It Va dev.acpi_hp.0.wlan_enabled +Toggle WLAN chip activity. +.It Va dev.acpi_hp.0.wlan_radio +(read-only) +WLAN radio status (controlled by hardware switch) +.It Va dev.acpi_hp.0.wlan_on_air +(read-only) +WLAN on air (chip enabled, hardware switch enabled + enabled in BIOS) +.It Va dev.acpi_hp.0.wlan_enabled_if_radio_on +If set to 1, the WLAN chip will be enabled if the radio is turned on +.It Va dev.acpi_hp.0.wlan_disable_if_radio_off +If set to 1, the WLAN chip will be disabled if the radio is turned off +.El +.Ss Bluetooth: +.Bl -tag -width indent +.It Va dev.acpi_hp.0.bt_enabled +Toggle Bluetooth chip activity. +.It Va dev.acpi_hp.0.bt_radio +(read-only) +Bluetooth radio status (controlled by hardware switch) +.It Va dev.acpi_hp.0.bt_on_air +(read-only) +Bluetooth on air (chip enabled, hardware switch enabled + enabled in BIOS) +.It Va dev.acpi_hp.0.bt_enabled_if_radio_on +If set to 1, the Bluetooth chip will be enabled if the radio is turned on +.It Va dev.acpi_hp.0.bt_disable_if_radio_off +If set to 1, the Bluetooth chip will be disabled if the radio is turned off +.El +.Ss WWAN: +.Bl -tag -width indent +.It Va dev.acpi_hp.0.wwan_enabled +Toggle WWAN chip activity. +.It Va dev.acpi_hp.0.wwan_radio +(read-only) +WWAN radio status (controlled by hardware switch) +.It Va dev.acpi_hp.0.wwan_on_air +(read-only) +WWAN on air (chip enabled, hardware switch enabled + enabled in BIOS) +.It Va dev.acpi_hp.0.wwan_enabled_if_radio_on +If set to 1, the WWAN chip will be enabled if the radio is turned on +.It Va dev.acpi_hp.0.wwan_disable_if_radio_off +If set to 1, the WWAN chip will be disabled if the radio is turned off +.El +.Ss Misc: +.Bl -tag -width indent +.It Va dev.acpi_hp.0.als_enabled +Toggle ambient light sensor (ALS) +.It Va dev.acpi_hp.0.display +(read-only) +Display status (bitmask) +.It Va dev.acpi_hp.0.hdd_temperature +(read-only) +HDD temperature +.It Va dev.acpi_hp.0.is_docked +(read-only) +Docking station status (1 if docked) +.It Va dev.acpi_hp.0.cmi_detail +Bitmask to control detail level in /dev/hpcmi output (values can be ORed). +.Bl -tag -width "0x01" -offset indent -compact +.It Li 0x01 +Show path component of BIOS setting +.It Li 0x02 +Show a list of valid options for the BIOS setting +.It Li 0x04 +Show additional flags of BIOS setting (ReadOnly etc.) +.El +.El +.Pp +Defaults for these sysctls can be set in +.Xr sysctl.conf 5 . +.Sh FILES +.Bl -tag -width ".Pa /dev/hpcmi" +.It Pa /dev/hpcmi +Interface to read BIOS settings +.El +.Sh EXAMPLES +The following can be added to +.Xr devd.conf 5 +in order disable the LAN interface when WLAN on air and reenable if it's +not: +.Bd -literal -offset indent +notify 0 { + match "system" "ACPI"; + match "subsystem" "HP"; + match "notify" "0xc0"; + action "ifconfig em0 up"; +}; + +notify 0 { + match "system" "ACPI"; + match "subsystem" "HP"; + match "notify" "0xc1"; + action "ifconfig em0 down"; +}; +.Ed +.Pp +Enable the ambient light sensor: +.Bd -literal -offset indent +sysctl dev.acpi_hp.0.als_enabled=1 +.Ed +.Pp +Enable Bluetooth: +.Bd -literal -offset indent +sysctl dev.acpi_hp.0.bt_enabled=1 +.Ed +.Pp +Get BIOS settings: +.Bd -literal -offset indent +cat /dev/hpcmi + +Serial Port Disable +Infrared Port Enable +Parallel Port Disable +Flash Media Reader Disable +USB Ports including Express Card slot Enable +1394 Port Enable +Cardbus Slot Disable +Express Card Slot Disable +(...) +.Ed +.Pp +Set maximum detail level for /dev/hpcmi output: +.Bd -literal -offset indent +sysctl dev.acpi_hp.0.cmi_detail=7 +.Ed +.Pp + + + +.Sh SEE ALSO +.Xr acpi 4 , +.Xr acpi_wmi 4 , +.Xr sysctl.conf 5 , +.Xr devd 8 , +.Xr devfs 8 , +.Xr sysctl 8 +.Sh HISTORY +The +.Nm +device driver first appeared in +.Fx CURRENT . +.Sh AUTHORS +.An -nosplit +The +.Nm +driver was written by +.An Michael Gmelin Aq freebsd@grem.de +.Pp +It has been inspired by hp-wmi driver, which implements a subset of these +features (hotkeys) on Linux. +.Pp +.Bl -tag -width indent +.It HP CMI whitepaper: +http://h20331.www2.hp.com/Hpsub/downloads/cmi_whitepaper.pdf +.It wmi-hp for Linux: +http://www.kernel.org +.It WMI and ACPI: +http://www.microsoft.com/whdc/system/pnppwr/wmi/wmi-acpi.mspx +.El +.Pp +This manual page was written by +.An Michael Gmelin Aq freebsd@grem.de +.Sh BUGS +This driver is experimental and has only been tested on CURRENT i386 on an +HP Compaq 8510p which featured all supported wireless devices (WWAN/BT/WLAN). +Expect undefined results when operating on different hardware. +.Pp +Loading the driver is slow. Reading from /dev/hpcmi is even slower. +.Pp +Additional features like HP specific sensor readings or writing BIOS +settings are not supported. --- sys/dev/acpi_support/acpi_hp.c~ 2009-06-21 18:50:08.924078040 +0200 +++ sys/dev/acpi_support/acpi_hp.c 2009-06-21 18:50:54.166723000 +0200 @@ -0,0 +1,1182 @@ +/*- + * 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. + */ + +#include +__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 +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#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), ¶ms }; + 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= '0' && buffer[i] <= '9') || + (buffer[i] >= 'A' && buffer[i] <= 'F'))) + return; + } + + for (i = 0; isi_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; + icmi_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; icmi_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); +} --- share/man/man4/man4.i386/acpi_wmi.4~ 2009-06-21 12:09:58.000000000 +0200 +++ share/man/man4/man4.i386/acpi_wmi.4 2009-06-21 12:10:57.178932778 +0200 @@ -0,0 +1,97 @@ +.\" 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. +.\" +.\" $FreeBSD$ +.\" +.Dd June 21, 2009 +.Dt ACPI_WMI 4 i386 +.Os +.Sh NAME +.Nm acpi_wmi +.Nd "ACPI to WMI mapping driver" +.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" +.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_load="YES" +.Ed +.Sh DESCRIPTION +The +.Nm +driver provides an interface for vendor specific WMI implementations +(e.g. HP and Acer laptops). It creates /dev/wmistat, which can be read to get +information about GUIDs found in the system. +.Sh FILES +.Bl -tag -width /dev/wmistat -compact +.It Pa /dev/wmistat +WMI status device. +.El +.Sh EXAMPLES +.Bd Literal +root# cat /dev/wmistat + +GUID INST EXPE METH STR EVENT OID +{5FB7F034-2C63-45E9-BE91-3D44E2C707E4} 1 NO WMAA NO NO AA +{95F24279-4D7B-4334-9387-ACCDC67EF61C} 1 NO NO NO 0x80+ - +{2B814318-4BE8-4707-9D84-A190A859B5D0} 1 NO NO NO 0xA0 - +{05901221-D566-11D1-B2F0-00A0C9062910} 1 NO NO NO NO AB +{1F4C91EB-DC5C-460B-951D-C7CB9B4B8D5E} 1 NO WMBA NO NO BA +{2D114B49-2DFB-4130-B8FE-4A3C09E75133} 57 NO NO NO NO BC +{988D08E3-68F4-4C35-AF3E-6A1B8106F83C} 20 NO NO NO NO BD +{14EA9746-CE1F-4098-A0E0-7045CB4DA745} 1 NO NO NO NO BE +{322F2028-0F84-4901-988E-015176049E2D} 2 NO NO NO NO BF +{8232DE3D-663D-4327-A8F4-E293ADB9BF05} 0 NO NO NO NO BG +{8F1F6436-9F42-42C8-BADC-0E9424F20C9A} 0 NO NO NO NO BH +{8F1F6435-9F42-42C8-BADC-0E9424F20C9A} 0 NO NO NO NO BI +.Ed + +.Sh SEE ALSO +.Xr acpi 4 , +.Sh HISTORY +The +.Nm +device driver first appeared in +.Fx CURRENT . +.Sh AUTHORS +.An -nosplit +The +.Nm +driver was written by +.An Michael Gmelin Aq freebsd@grem.de +.Pp +Work has been inspired by the Linux acpi-wmi driver written by Carlos Corbacho +.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 Michael Gmelin Aq freebsd@grem.de --- sys/dev/acpi_support/acpi_wmi.c~ 2009-06-21 18:42:25.739784505 +0200 +++ sys/dev/acpi_support/acpi_wmi.c 2009-06-21 18:50:54.166723000 +0200 @@ -0,0 +1,1005 @@ +/*- + * 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. + */ + +#include +__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 +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#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); +} --- sys/dev/acpi_support/acpi_wmi_if.m~ 2009-06-21 12:09:58.000000000 +0200 +++ sys/dev/acpi_support/acpi_wmi_if.m 2009-06-21 12:13:23.546375847 +0200 @@ -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: src/sys/dev/acpic_support/acpi_wmi_if.m,v 1.0 2008/11/23 16:33:00 rmg Exp $ +# + +#include +#include +#include + +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; +}; --- sys/modules/acpi/acpi_hp/Makefile~ 2009-06-21 12:09:58.000000000 +0200 +++ sys/modules/acpi/acpi_hp/Makefile 2009-06-21 12:10:33.000000000 +0100 @@ -0,0 +1,9 @@ +# $FreeBSD: src/sys/modules/acpi/acpi_hp/Makefile,v 1.3 2004/12/13 04:59:35 imp Exp $ + +.PATH: ${.CURDIR}/../../../dev/acpi_support +KMOD= acpi_hp +CFLAGS+= -I${.CURDIR}/../../../contrib/dev/acpica +SRCS= acpi_hp.c opt_acpi.h device_if.h bus_if.h acpi_if.h acpi_wmi_if.h +SRCS+= opt_ddb.h + +.include --- sys/modules/acpi/acpi_wmi/Makefile~ 2009-06-21 12:09:58.000000000 +0200 +++ sys/modules/acpi/acpi_wmi/Makefile 2009-06-21 12:10:39.000000000 +0100 @@ -0,0 +1,10 @@ +# $FreeBSD: src/sys/modules/acpi/acpi_wmi/Makefile,v 1.7 2007/06/24 20:36:51 njl Exp $ + +.PATH: ${.CURDIR}/../../../dev/acpi_support + +KMOD= acpi_wmi +CFLAGS+= -I${.CURDIR}/../../../contrib/dev/acpica +SRCS= acpi_wmi.c +SRCS+= opt_acpi.h acpi_if.h bus_if.h device_if.h acpi_wmi_if.h + +.include --- sys/conf/files.i386~ 2008-12-29 04:46:14.000000000 +0100 +++ sys/conf/files.i386 2009-06-21 12:10:14.000000000 +0100 @@ -226,6 +226,7 @@ dev/syscons/scvtb.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 --- sys/conf/files~ 2008-12-29 04:45:44.000000000 +0100 +++ sys/conf/files 2009-06-21 12:10:44.000000000 +0100 @@ -375,9 +375,11 @@ 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 --- sys/conf/kmod.mk~ 2008-12-29 04:44:41.000000000 +0100 +++ sys/conf/kmod.mk 2009-06-21 12:10:41.000000000 +0100 @@ -321,7 +321,7 @@ .endfor .endif -MFILES?= dev/acpica/acpi_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 \ --- share/man/man4/man4.i386/Makefile~ 2009-06-21 12:36:50.000000000 +0200 +++ share/man/man4/man4.i386/Makefile 2009-06-21 12:36:50.000000000 +0200 @@ -3,10 +3,12 @@ MAN= acpi_aiboost.4 \ acpi_asus.4 \ acpi_fujitsu.4 \ + acpi_hp.4 \ acpi_ibm.4 \ acpi_panasonic.4 \ acpi_sony.4 \ acpi_toshiba.4 \ + acpi_wmi.4 \ aic.4 \ alpm.4 \ amdpm.4 \ --------------000302080806090206000000 Content-Type: text/plain; name="acpi_wmi.c" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="acpi_wmi.c" /*- * 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. */ #include __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 #include #include #include #include #include #include #include #include #include #include #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); } --------------000302080806090206000000 Content-Type: text/plain; name="acpi_hp.c" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="acpi_hp.c" /*- * 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. */ #include __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 #include #include #include #include #include #include #include #include #include #include #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), ¶ms }; 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= '0' && buffer[i] <= '9') || (buffer[i] >= 'A' && buffer[i] <= 'F'))) return; } for (i = 0; isi_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; icmi_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; icmi_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); } --------------000302080806090206000000--