32a8088fef
present on the MacBook, MacBook Pro, and Intel MacMini. This driver exports information via sysctl in its private sysctl tree dev.asmc.*. You can get information about temperatures, fan speeds, the keyboard light sensor and the Sudden Motion Sensor (SMS). The SMS is very useful to park the disk heads when the laptop is moved. Basically, the SMS is setup so that, under movement, we get an interrupt on irq 6 and a devd notification is sent. Sponsored by: Google Summer of Code 2007 Approved by: njl (mentor) Reviewed by: attilio (previous version, but very similar), jhb (interrupt specific review)
161 lines
4.8 KiB
C
161 lines
4.8 KiB
C
/*-
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* Copyright (c) 2007 Rui Paulo <rpaulo@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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#define ASMC_MAXFANS 2
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struct asmc_softc {
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device_t sc_dev;
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struct mtx sc_mtx;
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int sc_nfan;
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int16_t sms_rest_x;
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int16_t sms_rest_y;
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int16_t sms_rest_z;
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struct sysctl_oid *sc_fan_tree[ASMC_MAXFANS+1];
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struct sysctl_oid *sc_temp_tree;
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struct sysctl_oid *sc_sms_tree;
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struct sysctl_oid *sc_light_tree;
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struct asmc_model *sc_model;
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int sc_rid;
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struct resource *sc_res;
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void *sc_cookie;
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int sc_sms_intrtype;
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struct taskqueue *sc_sms_tq;
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struct task sc_sms_task;
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};
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/*
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* The Sudden Motion Sensor is able to generate an interrupt when
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* there are certain critical conditions (free fall, high acceleration and
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* shocks).
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* The following IRQ is used.
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*/
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#define ASMC_IRQ 6
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/*
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* Data port.
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*/
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#define ASMC_DATAPORT 0x300
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#define ASMC_STATUS_MASK 0x0f
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/*
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* Command port.
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*/
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#define ASMC_CMDPORT 0x304
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#define ASMC_CMDREAD 0x10
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#define ASMC_CMDWRITE 0x11
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/*
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* Interrupt port.
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*/
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#define ASMC_INTPORT 0x31f
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/* Number of keys */
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#define ASMC_NKEYS "#KEY" /* RO; 4 bytes */
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/*
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* Fan control via SMC.
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*/
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#define ASMC_KEY_FANCOUNT "FNum" /* RO; 1 byte */
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#define ASMC_KEY_FANMANUAL "FS! " /* RW; 2 bytes */
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#define ASMC_KEY_FANSPEED "F%dAc" /* RO; 2 bytes */
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#define ASMC_KEY_FANMINSPEED "F%dMn" /* RO; 2 bytes */
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#define ASMC_KEY_FANMAXSPEED "F%dMx" /* RO; 2 bytes */
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#define ASMC_KEY_FANSAFESPEED "F%dSf" /* RO; 2 bytes */
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#define ASMC_KEY_FANTARGETSPEED "F%dTg" /* RW; 2 bytes */
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/*
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* Sudden Motion Sensor (SMS).
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*/
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#define ASMC_SMS_INIT1 0xe0
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#define ASMC_SMS_INIT2 0xf8
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#define ASMC_KEY_SMS "MOCN" /* RW; 2 bytes */
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#define ASMC_KEY_SMS_X "MO_X" /* RO; 2 bytes */
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#define ASMC_KEY_SMS_Y "MO_Y" /* RO; 2 bytes */
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#define ASMC_KEY_SMS_Z "MO_Z" /* RO; 2 bytes */
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#define ASMC_KEY_SMS_LOW "MOLT" /* RW; 2 bytes */
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#define ASMC_KEY_SMS_HIGH "MOHT" /* RW; 2 bytes */
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#define ASMC_KEY_SMS_LOW_INT "MOLD" /* RW; 1 byte */
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#define ASMC_KEY_SMS_HIGH_INT "MOHD" /* RW; 1 byte */
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#define ASMC_KEY_SMS_FLAG "MSDW" /* RW; 1 byte */
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#define ASMC_SMS_INTFF 0x60 /* Free fall Interrupt */
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#define ASMC_SMS_INTHA 0x6f /* High Acceleration Interrupt */
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#define ASMC_SMS_INTSH 0x80 /* Shock Interrupt */
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/*
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* Keyboard backlight.
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*/
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#define ASMC_KEY_LIGHTLEFT "ALV0" /* RO; 6 bytes */
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#define ASMC_KEY_LIGHTRIGHT "ALV1" /* RO; 6 bytes */
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#define ASMC_KEY_LIGHTVALUE "LKSB" /* WO; 2 bytes */
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/*
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* Clamshell.
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*/
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#define ASMC_KEY_CLAMSHELL "MSLD" /* RO; 1 byte */
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/*
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* Interrupt keys.
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*/
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#define ASMC_KEY_INTOK "NTOK" /* WO; 1 byte */
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/*
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* Temperatures.
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*
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* First for MacBook, second for MacBook Pro, then for Intel Mac Mini.
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*
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*/
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#define ASMC_MB_TEMPS { "TB0T", "TN0P", "TN1P", "Th0H", "Th1H", \
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"TM0P", NULL }
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#define ASMC_MB_TEMPNAMES { "enclosure", "northbridge1", \
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"northbridge2", "heatsink1", \
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"heatsink2", "memory", }
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#define ASMC_MB_TEMPDESCS { "Enclosure Bottomside", \
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"Northbridge Point 1", \
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"Northbridge Point 2", "Heatsink 1", \
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"Heatsink 2", "Memory Bank A", }
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#define ASMC_MBP_TEMPS { "TB0T", "Th0H", "Th1H", "Tm0P", \
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"TG0H", "TG0P", "TG0T", NULL }
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#define ASMC_MBP_TEMPNAMES { "enclosure", "heatsink1", \
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"heatsink2", "memory", "graphics", \
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"graphicssink", "unknown", }
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#define ASMC_MBP_TEMPDESCS { "Enclosure Bottomside", \
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"Heatsink 1", "Heatsink 2", \
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"Memory Controller", \
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"Graphics Chip", "Graphics Heatsink", \
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"Unknown", }
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#define ASMC_MM_TEMPS { "TN0P", "TN1P", NULL }
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#define ASMC_MM_TEMPNAMES { "northbridge1", "northbridge2" }
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#define ASMC_MM_TEMPDESCS { "Northbridge Point 1", \
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"Northbridge Point 2" }
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