From 554257bc124ea5b49daa3ea919e5693f0a2576bf Mon Sep 17 00:00:00 2001 From: Sascha Wildner Date: Sat, 17 Mar 2012 17:53:51 +0100 Subject: [PATCH] kernel/acpi: Bring in acpi_wmi(4) from FreeBSD, which acpi_hp(4) needs. Also, hook acpi_hp(4) back into the build. Some fixes to acpi_hp(4) were brought in, too. It is all untested, unfortunately. The hope is, that someone with a HP laptop might check it out. --- Makefile_upgrade.inc | 5 - share/man/man4/Makefile | 5 +- share/man/man4/acpi.4 | 2 +- share/man/man4/acpi_hp.4 | 8 +- share/man/man4/acpi_wmi.4 | 96 +++ sys/conf/files | 5 +- sys/conf/kmod.mk | 2 +- sys/config/LINT | 5 +- sys/config/LINT64 | 5 +- sys/dev/acpica5/Makefile | 4 +- sys/dev/acpica5/acpi_hp/Makefile | 4 +- sys/dev/acpica5/acpi_hp/acpi_hp.c | 51 +- sys/dev/acpica5/acpi_wmi/Makefile | 7 + sys/dev/acpica5/acpi_wmi/acpi_wmi.c | 1019 +++++++++++++++++++++++++++ sys/dev/acpica5/acpi_wmi_if.m | 2 +- 15 files changed, 1175 insertions(+), 45 deletions(-) create mode 100644 share/man/man4/acpi_wmi.4 create mode 100644 sys/dev/acpica5/acpi_wmi/Makefile create mode 100644 sys/dev/acpica5/acpi_wmi/acpi_wmi.c diff --git a/Makefile_upgrade.inc b/Makefile_upgrade.inc index 66fdd823b0..6668334a57 100644 --- a/Makefile_upgrade.inc +++ b/Makefile_upgrade.inc @@ -2029,8 +2029,3 @@ TO_REMOVE+=/usr/share/man/man4/rum.4.gz TO_REMOVE+=/boot/modules/if_ural.ko TO_REMOVE+=/usr/share/man/cat4/ural.4.gz TO_REMOVE+=/usr/share/man/man4/ural.4.gz - -# XXX Remove when acpi_hp(4) has been fixed -TO_REMOVE+=/boot/kernel/acpi_hp.ko -TO_REMOVE+=/usr/share/man/cat4/acpi_hp.4.gz -TO_REMOVE+=/usr/share/man/man4/acpi_hp.4.gz diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile index 46edd050b7..096f38c77e 100644 --- a/share/man/man4/Makefile +++ b/share/man/man4/Makefile @@ -5,12 +5,14 @@ MAN= aac.4 \ acpi.4 \ acpi_asus.4 \ acpi_fujitsu.4 \ + acpi_hp.4 \ acpi_panasonic.4 \ acpi_sony.4 \ acpi_thermal.4 \ acpi_thinkpad.4 \ acpi_toshiba.4 \ acpi_video.4 \ + acpi_wmi.4 \ adv.4 \ adw.4 \ ae.4 \ @@ -380,9 +382,6 @@ MAN= aac.4 \ # rum.4 \ # ural.4 \ -# XXX re-add when acpi_hp(4) has been fixed -# acpi_hp.4 \ - MLINKS= acpi_thermal.4 acpi_tz.4 MLINKS+=agp.4 agpgart.4 MLINKS+=bktr.4 brooktree.4 diff --git a/share/man/man4/acpi.4 b/share/man/man4/acpi.4 index 77d1249956..c18f6773f7 100644 --- a/share/man/man4/acpi.4 +++ b/share/man/man4/acpi.4 @@ -580,7 +580,7 @@ ACPI is only found and supported on i386/ia32, ia64, and x86_64. .Xr kenv 1 , .Xr acpi_asus 4 , .Xr acpi_fujitsu 4 , -.\".Xr acpi_hp 4 , +.Xr acpi_hp 4 , .Xr acpi_panasonic 4 , .Xr acpi_sony 4 , .Xr acpi_thermal 4 , diff --git a/share/man/man4/acpi_hp.4 b/share/man/man4/acpi_hp.4 index 68c906fc22..ab37ffcf42 100644 --- a/share/man/man4/acpi_hp.4 +++ b/share/man/man4/acpi_hp.4 @@ -22,9 +22,9 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.\" $FreeBSD: src/share/man/man4/acpi_hp.4,v 1.4 2009/07/03 21:12:37 rpaulo Exp $ +.\" $FreeBSD: src/share/man/man4/acpi_hp.4,v 1.7 2010/10/08 12:40:16 uqs Exp $ .\" -.Dd November 11, 2009 +.Dd March 16, 2012 .Dt ACPI_HP 4 .Os .Sh NAME @@ -246,7 +246,7 @@ sysctl hw.acpi.hp.cmi_detail=7 .Ed .Sh SEE ALSO .Xr acpi 4 , -.\".Xr acpi_wmi 4 , +.Xr acpi_wmi 4 , .Xr devfs 5 , .Xr sysctl.conf 5 , .Xr devd 8 , @@ -279,7 +279,7 @@ http://www.microsoft.com/whdc/system/pnppwr/wmi/wmi-acpi.mspx 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 +This driver is experimental and has only been tested on i386 on an HP Compaq 8510p which featured all supported wireless devices (WWAN/BT/WLAN). Expect undefined results when operating on different hardware. .Pp diff --git a/share/man/man4/acpi_wmi.4 b/share/man/man4/acpi_wmi.4 new file mode 100644 index 0000000000..94679838dd --- /dev/null +++ b/share/man/man4/acpi_wmi.4 @@ -0,0 +1,96 @@ +.\" 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/share/man/man4/acpi_wmi.4,v 1.7 2011/11/22 16:44:50 jh Exp $ +.\" +.Dd March 13, 2012 +.Dt ACPI_WMI 4 +.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%d, which can be read to get +information about GUIDs found in the system. +.Sh FILES +.Bl -tag -width /dev/wmistat%d -compact +.It Pa /dev/wmistat%d +WMI status device. +.El +.Sh EXAMPLES +.Bd -literal +# cat /dev/wmistat0 +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 8.0 . +.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 diff --git a/sys/conf/files b/sys/conf/files index 870047ca51..e9f24743af 100644 --- a/sys/conf/files +++ b/sys/conf/files @@ -1969,7 +1969,7 @@ ${OSACPI_MI_DIR}/acpi_powerres.c optional acpi ${OSACPI_MI_DIR}/acpi_resource.c optional acpi ${OSACPI_MI_DIR}/acpi_thermal.c optional acpi ${OSACPI_MI_DIR}/acpi_timer.c optional acpi -#${OSACPI_MI_DIR}/acpi_wmi_if.m optional acpi +${OSACPI_MI_DIR}/acpi_wmi_if.m optional acpi ${OSACPI_MI_DIR}/Osd/OsdCache.c optional acpi ${OSACPI_MI_DIR}/Osd/OsdDebug.c optional acpi ${OSACPI_MI_DIR}/Osd/OsdHardware.c optional acpi @@ -1982,12 +1982,13 @@ ${OSACPI_MI_DIR}/Osd/OsdTable.c optional acpi ${OSACPI_MI_DIR}/acpi_asus/acpi_asus.c optional acpi_asus acpi ${OSACPI_MI_DIR}/acpi_fujitsu/acpi_fujitsu.c optional acpi_fujitsu acpi -#${OSACPI_MI_DIR}/acpi_hp/acpi_hp.c optional acpi_hp acpi +${OSACPI_MI_DIR}/acpi_hp/acpi_hp.c optional acpi_hp acpi ${OSACPI_MI_DIR}/acpi_panasonic/acpi_panasonic.c optional acpi_panasonic acpi ${OSACPI_MI_DIR}/acpi_sony/acpi_sony.c optional acpi_sony acpi ${OSACPI_MI_DIR}/acpi_thinkpad/acpi_thinkpad.c optional acpi_thinkpad acpi ${OSACPI_MI_DIR}/acpi_toshiba/acpi_toshiba.c optional acpi_toshiba acpi ${OSACPI_MI_DIR}/acpi_video/acpi_video.c optional acpi_video acpi +${OSACPI_MI_DIR}/acpi_wmi/acpi_wmi.c optional acpi_wmi acpi ${OSACPI_MI_DIR}/aibs/atk0110.c optional aibs acpi # dsched stuff diff --git a/sys/conf/kmod.mk b/sys/conf/kmod.mk index 759b4504bb..71517ebce6 100644 --- a/sys/conf/kmod.mk +++ b/sys/conf/kmod.mk @@ -300,7 +300,7 @@ MFILES?= kern/bus_if.m kern/device_if.m bus/iicbus/iicbb_if.m \ bus/pccard/card_if.m bus/pccard/power_if.m bus/pci/pci_if.m \ bus/pci/pcib_if.m \ bus/ppbus/ppbus_if.m bus/smbus/smbus_if.m bus/usb/usb_if.m \ - dev/acpica5/acpi_if.m dev/disk/nata/ata_if.m \ + dev/acpica5/acpi_if.m dev/acpica5/acpi_wmi_if.m dev/disk/nata/ata_if.m \ dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \ dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \ libiconv/iconv_converter_if.m dev/agp/agp_if.m opencrypto/cryptodev_if.m \ diff --git a/sys/config/LINT b/sys/config/LINT index df09a72cdc..6f0280e3b2 100644 --- a/sys/config/LINT +++ b/sys/config/LINT @@ -2399,6 +2399,9 @@ device rdrand # hardware RNG for RdRand device acpi options ACPI_DEBUG +# ACPI WMI Mapping driver +device acpi_wmi + # ACPI Asus Extras (LCD backlight/brightness, video output, etc.) device acpi_asus @@ -2406,7 +2409,7 @@ device acpi_asus device acpi_fujitsu # ACPI extras driver for HP laptops -#device acpi_hp +device acpi_hp # ACPI Panasonic Extras (LCD backlight/brightness, video output, etc.) device acpi_panasonic diff --git a/sys/config/LINT64 b/sys/config/LINT64 index 803bb30b1f..bcc60df05a 100644 --- a/sys/config/LINT64 +++ b/sys/config/LINT64 @@ -2164,6 +2164,9 @@ device rdrand # hardware RNG for RdRand device acpi options ACPI_DEBUG +# ACPI WMI Mapping driver +device acpi_wmi + # ACPI Asus Extras (LCD backlight/brightness, video output, etc.) device acpi_asus @@ -2171,7 +2174,7 @@ device acpi_asus device acpi_fujitsu # ACPI extras driver for HP laptops -#device acpi_hp +device acpi_hp # ACPI Panasonic Extras (LCD backlight/brightness, video output, etc.) device acpi_panasonic diff --git a/sys/dev/acpica5/Makefile b/sys/dev/acpica5/Makefile index 2ff929fca7..a32cacce4d 100644 --- a/sys/dev/acpica5/Makefile +++ b/sys/dev/acpica5/Makefile @@ -115,7 +115,7 @@ acpi_wakecode.h: acpi_wakecode.S ${MAKE} -f ${SYSDIR}/${OSACPI_MD_DIR}/Makefile \ MAKESRCPATH=${SYSDIR}/${OSACPI_MD_DIR} -SUBDIR= acpi_asus acpi_fujitsu acpi_panasonic acpi_sony acpi_thinkpad acpi_toshiba acpi_video aibs -#SUBDIR+=acpi_hp +SUBDIR= acpi_asus acpi_fujitsu acpi_hp acpi_panasonic acpi_sony +SUBDIR+=acpi_thinkpad acpi_toshiba acpi_video acpi_wmi aibs .include diff --git a/sys/dev/acpica5/acpi_hp/Makefile b/sys/dev/acpica5/acpi_hp/Makefile index c439ae3b98..7ab26a09d2 100644 --- a/sys/dev/acpica5/acpi_hp/Makefile +++ b/sys/dev/acpica5/acpi_hp/Makefile @@ -1,5 +1,7 @@ +# $FreeBSD: src/sys/modules/acpi/acpi_hp/Makefile,v 1.1 2009/06/23 13:17:25 rpaulo Exp $ + KMOD= acpi_hp -CFLAGS+=-I${.OBJDIR}/.. -I${.CURDIR}/.. +CFLAGS+=-I${.CURDIR}/.. SRCS= acpi_hp.c opt_acpi.h acpi_if.h acpi_wmi_if.h device_if.h bus_if.h .include diff --git a/sys/dev/acpica5/acpi_hp/acpi_hp.c b/sys/dev/acpica5/acpi_hp/acpi_hp.c index e086a691f4..37d89897d7 100644 --- a/sys/dev/acpica5/acpi_hp/acpi_hp.c +++ b/sys/dev/acpica5/acpi_hp/acpi_hp.c @@ -23,7 +23,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $FreeBSD: src/sys/dev/acpi_support/acpi_hp.c,v 1.3 2009/07/03 21:12:37 rpaulo + * $FreeBSD: src/sys/dev/acpi_support/acpi_hp.c,v 1.7 2010/09/11 08:09:14 avg Exp $ */ /* @@ -109,8 +109,6 @@ ACPI_MODULE_NAME("HP") #define ACPI_HP_CMI_DETAIL_FLAGS 0x04 #define ACPI_HP_CMI_DETAIL_SHOW_MAX_INSTANCE 0x08 -#define sbuf_done(s) ((s)->s_flags & SBUF_FINISHED) - struct acpi_hp_inst_seq_pair { UINT32 sequence; /* sequence number as suggested by cmi bios */ UINT8 instance; /* object instance on guid */ @@ -118,7 +116,6 @@ struct acpi_hp_inst_seq_pair { 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 */ @@ -291,6 +288,7 @@ static struct { ACPI_SERIAL_DECL(hp, "HP ACPI-WMI Mapping"); +static void acpi_hp_identify(driver_t *driver, device_t parent); static int acpi_hp_probe(device_t dev); static int acpi_hp_attach(device_t dev); static int acpi_hp_detach(device_t dev); @@ -327,6 +325,7 @@ static struct dev_ops hpcmi_ops = { }; static device_method_t acpi_hp_methods[] = { + DEVMETHOD(device_identify, acpi_hp_identify), DEVMETHOD(device_probe, acpi_hp_probe), DEVMETHOD(device_attach, acpi_hp_attach), DEVMETHOD(device_detach, acpi_hp_detach), @@ -341,8 +340,9 @@ static driver_t acpi_hp_driver = { static devclass_t acpi_hp_devclass; -DRIVER_MODULE(acpi_hp, acpi, acpi_hp_driver, acpi_hp_devclass, - 0, 0); +DRIVER_MODULE(acpi_hp, acpi_wmi, acpi_hp_driver, acpi_hp_devclass, + NULL, NULL); +MODULE_VERSION(acpi_hp, 1); MODULE_DEPEND(acpi_hp, acpi_wmi, 1, 1, 1); MODULE_DEPEND(acpi_hp, acpi, 1, 1, 1); @@ -412,7 +412,7 @@ acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc *sc) "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, + acpi_UserNotify("HP", ACPI_ROOT_OBJECT, 0xc0+sc->was_wlan_on_air); } } @@ -427,7 +427,7 @@ acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc *sc) " to %i (new_bluetooth_status is %i)\n", sc->was_bluetooth_on_air, new_bluetooth_status); - acpi_UserNotify("HP", sc->handle, + acpi_UserNotify("HP", ACPI_ROOT_OBJECT, 0xd0+sc->was_bluetooth_on_air); } } @@ -440,19 +440,33 @@ acpi_hp_evaluate_auto_on_off(struct acpi_hp_softc *sc) "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, + acpi_UserNotify("HP", ACPI_ROOT_OBJECT, 0xe0+sc->was_wwan_on_air); } } } +static void +acpi_hp_identify(driver_t *driver, device_t parent) +{ + + /* Don't do anything if driver is disabled. */ + if (acpi_disabled("hp")) + return; + + /* Add only a single device instance. */ + if (device_find_child(parent, "acpi_hp", -1) != NULL) + return; + + if (BUS_ADD_CHILD(parent, parent, 0, "acpi_hp", -1) == NULL) + device_printf(parent, "add acpi_hp child failed\n"); +} + 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"); + device_set_desc(dev, "HP ACPI-WMI Mapping"); return (0); } @@ -461,14 +475,12 @@ 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; @@ -486,14 +498,7 @@ acpi_hp_attach(device_t dev) 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); - } + sc->wmi_dev = device_get_parent(dev); if (!ACPI_WMI_PROVIDES_GUID_STRING(sc->wmi_dev, ACPI_HP_WMI_BIOS_GUID)) { device_printf(dev, @@ -816,7 +821,7 @@ acpi_hp_notify(ACPI_HANDLE h, UINT32 notify, void *context) 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 (!obj || obj->Type != ACPI_TYPE_PACKAGE) { if (*((UINT8 *) obj->Buffer.Pointer) == 0x5) { acpi_hp_evaluate_auto_on_off(sc); } diff --git a/sys/dev/acpica5/acpi_wmi/Makefile b/sys/dev/acpica5/acpi_wmi/Makefile new file mode 100644 index 0000000000..25613f41c6 --- /dev/null +++ b/sys/dev/acpica5/acpi_wmi/Makefile @@ -0,0 +1,7 @@ +# $FreeBSD: src/sys/modules/acpi/acpi_wmi/Makefile,v 1.1 2009/06/23 13:17:25 rpaulo Exp $ + +KMOD= acpi_wmi +CFLAGS+=-I${.CURDIR}/.. +SRCS= acpi_wmi.c opt_acpi.h acpi_if.h acpi_wmi_if.h device_if.h bus_if.h + +.include diff --git a/sys/dev/acpica5/acpi_wmi/acpi_wmi.c b/sys/dev/acpica5/acpi_wmi/acpi_wmi.c new file mode 100644 index 0000000000..9a2ed70fe9 --- /dev/null +++ b/sys/dev/acpica5/acpi_wmi/acpi_wmi.c @@ -0,0 +1,1019 @@ +/*- + * 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/acpi_support/acpi_wmi.c,v 1.9 2011/11/22 21:28:20 marius Exp $ + */ + +/* + * 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 "acpi.h" +#include "accommon.h" +#include +#include "acpi_wmi_if.h" + +static 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, + UINT64 *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 dev_ops wmistat_ops = { + { .name = "wmistat" }, + .d_open = acpi_wmi_wmistat_open, + .d_close = acpi_wmi_wmistat_close, + .d_read = acpi_wmi_wmistat_read, +}; + + +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), + + /* bus interface */ + DEVMETHOD(bus_add_child, bus_generic_add_child), + + /* 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", 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_ops, 0, UID_ROOT, + GID_WHEEL, 0644, "wmistat%d", device_get_unit(dev)); + sc->wmistat_dev_t->si_drv1 = sc; + sc->wmistat_open_pid = 0; + sc->wmistat_bufptr = -1; + ret = 0; + } + ACPI_SERIAL_END(acpi_wmi); + + if (ret == 0) { + bus_generic_probe(dev); + ret = bus_generic_attach(dev); + } + + 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_MUTABLE(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); + kfree(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) +{ + struct wmi_info *winfo; + int ret; + + ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); + ACPI_SERIAL_BEGIN(acpi_wmi); + winfo = acpi_wmi_lookup_wmi_info_by_guid_string(guid_string); + ret = (winfo == NULL)?0:winfo->ginfo.max_instance+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, UINT64 *value, void *context, + void *region_context) +{ + struct acpi_wmi_softc *sc; + int i; + UINT64 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 |= ((UINT64)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 = kmalloc(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 = kmalloc(sizeof(struct wmi_info), M_ACPIWMI, + M_NOWAIT | M_ZERO)) == NULL) { + AcpiOsFree(out.Pointer); + kfree(ginfo, M_ACPIWMI); + return (AE_NO_MEMORY); + } + winfo->ginfo = ginfo[i]; + TAILQ_INSERT_TAIL(&wmi_info_list, winfo, wmi_list); + } + AcpiOsFree(out.Pointer); + kfree(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 dev_open_args *ap) +{ + struct cdev *dev = ap->a_head.a_dev; + struct thread *td = curthread; + 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 dev_close_args *ap) +{ + struct cdev *dev = ap->a_head.a_dev; + 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 dev_read_args *ap) +{ + struct cdev *dev = ap->a_head.a_dev; + struct uio *buf = ap->a_uio; + struct acpi_wmi_softc *sc; + struct wmi_info *winfo; + int l; + int ret; + UINT8* guid; + + if (dev == NULL || dev->si_drv1 == NULL) + return (EBADF); + sc = dev->si_drv1; + + ACPI_SERIAL_BEGIN(acpi_wmi); + if (sc->wmistat_open_pid != buf->uio_td->td_proc->p_pid || + sc->wmistat_bufptr == -1) { + ret = EBADF; + } + else { + if (!sbuf_done(&sc->wmistat_sbuf)) { + sbuf_printf(&sc->wmistat_sbuf, "GUID " + " INST EXPE METH STR " + "EVENT OID\n"); + TAILQ_FOREACH(winfo, &wmi_info_list, wmi_list) { + guid = (UINT8*)winfo->ginfo.guid; + sbuf_printf(&sc->wmistat_sbuf, + "{%02X%02X%02X%02X-%02X%02X-" + "%02X%02X-%02X%02X-%02X%02X" + "%02X%02X%02X%02X} %3d %-5s", + guid[3], guid[2], guid[1], guid[0], + guid[5], guid[4], + guid[7], guid[6], + guid[8], guid[9], + guid[10], guid[11], guid[12], + guid[13], guid[14], guid[15], + winfo->ginfo.max_instance, + (winfo->ginfo.flags& + ACPI_WMI_REGFLAG_EXPENSIVE)? + "YES":"NO" + ); + if (winfo->ginfo.flags&ACPI_WMI_REGFLAG_METHOD) + sbuf_printf(&sc->wmistat_sbuf, + "WM%c%c ", + winfo->ginfo.oid[0], + winfo->ginfo.oid[1]); + else + sbuf_printf(&sc->wmistat_sbuf, "NO "); + sbuf_printf(&sc->wmistat_sbuf, "%-4s", + (winfo->ginfo.flags& + ACPI_WMI_REGFLAG_STRING)?"YES":"NO" + ); + if (winfo->ginfo.flags&ACPI_WMI_REGFLAG_EVENT) + sbuf_printf(&sc->wmistat_sbuf, + "0x%02X%s -\n", + (UINT8)winfo->ginfo.oid[0], + winfo->event_handler==NULL? + " ":"+"); + else + sbuf_printf(&sc->wmistat_sbuf, + "NO %c%c\n", + winfo->ginfo.oid[0], + winfo->ginfo.oid[1]); + } + sbuf_finish(&sc->wmistat_sbuf); + } + if (sbuf_len(&sc->wmistat_sbuf) <= 0) { + sbuf_delete(&sc->wmistat_sbuf); + sc->wmistat_bufptr = -1; + sc->wmistat_open_pid = 0; + ret = ENOMEM; + } else { + l = min(buf->uio_resid, sbuf_len(&sc->wmistat_sbuf) - + sc->wmistat_bufptr); + ret = (l > 0)?uiomove(sbuf_data(&sc->wmistat_sbuf) + + sc->wmistat_bufptr, l, buf) : 0; + sc->wmistat_bufptr += l; + } + } + ACPI_SERIAL_END(acpi_wmi); + + return (ret); +} diff --git a/sys/dev/acpica5/acpi_wmi_if.m b/sys/dev/acpica5/acpi_wmi_if.m index 5924920592..9f95ec4d63 100644 --- a/sys/dev/acpica5/acpi_wmi_if.m +++ b/sys/dev/acpica5/acpi_wmi_if.m @@ -28,7 +28,7 @@ #include #include -#include +#include "acpi.h" INTERFACE acpi_wmi; -- 2.41.0