Driver for the Apple System Management Console (SMC). This hardware is
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)
This commit is contained in:
rpaulo
parent
42f4fb0d92
commit
eb9c80fd27
981
sys/dev/asmc/asmc.c
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sys/dev/asmc/asmc.c
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/*-
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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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*/
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/*
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* Driver for Apple's System Management Console (SMC).
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* SMC can be found on the MacBook, MacBook Pro and Mac Mini.
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*
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* Inspired by the Linux applesmc driver.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/mutex.h>
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#include <sys/sysctl.h>
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#include <sys/systm.h>
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#include <sys/taskqueue.h>
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#include <isa/isavar.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <dev/asmc/asmcvar.h>
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/*
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* Device interface.
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*/
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static void asmc_identify(driver_t *driver, device_t parent);
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static int asmc_probe(device_t dev);
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static int asmc_attach(device_t dev);
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static int asmc_detach(device_t dev);
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/*
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* SMC functions.
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*/
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static int asmc_init(device_t dev);
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static int asmc_wait(device_t dev, uint8_t val);
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static int asmc_key_write(device_t dev, const char *key, uint8_t *buf,
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uint8_t len);
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static int asmc_key_read(device_t dev, const char *key, uint8_t *buf,
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uint8_t);
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static int asmc_fan_count(device_t dev);
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static int asmc_fan_getvalue(device_t dev, const char *key, int fan);
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static int asmc_temp_getvalue(device_t dev, const char *key);
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static int asmc_sms_read(device_t, const char *key, int16_t *val);
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static void asmc_sms_calibrate(device_t dev);
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static int asmc_sms_intrfast(void *arg);
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#ifdef INTR_FILTER
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static void asmc_sms_handler(void *arg);
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#endif
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static void asmc_sms_printintr(device_t dev, uint8_t);
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static void asmc_sms_task(void *arg, int pending);
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/*
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* Model functions.
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*/
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static int asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS);
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static int asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS);
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static int asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS);
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static int asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS);
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static int asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS);
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static int asmc_temp_sysctl(SYSCTL_HANDLER_ARGS);
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static int asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS);
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static int asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS);
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static int asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS);
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static int asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS);
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static int asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS);
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struct asmc_model {
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const char *smc_model; /* smbios.system.product env var. */
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const char *smc_desc; /* driver description */
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/* Helper functions */
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int (*smc_sms_x)(SYSCTL_HANDLER_ARGS);
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int (*smc_sms_y)(SYSCTL_HANDLER_ARGS);
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int (*smc_sms_z)(SYSCTL_HANDLER_ARGS);
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int (*smc_fan_speed)(SYSCTL_HANDLER_ARGS);
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int (*smc_fan_safespeed)(SYSCTL_HANDLER_ARGS);
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int (*smc_fan_minspeed)(SYSCTL_HANDLER_ARGS);
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int (*smc_fan_maxspeed)(SYSCTL_HANDLER_ARGS);
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int (*smc_fan_targetspeed)(SYSCTL_HANDLER_ARGS);
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int (*smc_light_left)(SYSCTL_HANDLER_ARGS);
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int (*smc_light_right)(SYSCTL_HANDLER_ARGS);
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const char *smc_temps[8];
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const char *smc_tempnames[8];
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const char *smc_tempdescs[8];
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};
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static struct asmc_model *asmc_match(device_t dev);
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#define ASMC_SMS_FUNCS asmc_mb_sysctl_sms_x, asmc_mb_sysctl_sms_y, \
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asmc_mb_sysctl_sms_z
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#define ASMC_FAN_FUNCS asmc_mb_sysctl_fanspeed, asmc_mb_sysctl_fansafespeed, \
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asmc_mb_sysctl_fanminspeed, \
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asmc_mb_sysctl_fanmaxspeed, \
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asmc_mb_sysctl_fantargetspeed
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#define ASMC_LIGHT_FUNCS asmc_mbp_sysctl_light_left, \
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asmc_mbp_sysctl_light_right
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struct asmc_model asmc_models[] = {
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{
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"MacBook1,1", "Apple SMC MacBook Core Duo",
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ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL,
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ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS
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},
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{
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"MacBook2,1", "Apple SMC MacBook Core 2 Duo",
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ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL,
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ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS
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},
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{
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"MacBookPro1,1", "Apple SMC MacBook Pro Core Duo (15-inch)",
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ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
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ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
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},
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{
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"MacBookPro1,2", "Apple SMC MacBook Pro Core Duo (17-inch)",
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ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
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ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
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},
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{
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"MacBookPro2,1", "Apple SMC MacBook Pro Core 2 Duo (17-inch)",
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ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
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ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
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},
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{
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"MacBookPro2,2", "Apple SMC MacBook Pro Core 2 Duo (15-inch)",
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ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
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ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
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},
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{
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"MacBookPro3,1", "Apple SMC MacBook Pro Core 2 Duo (15-inch LED)",
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ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
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ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
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},
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{
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"MacBookPro3,2", "Apple SMC MacBook Pro Core 2 Duo (17-inch HD)",
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ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
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ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
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},
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/* The Mac Mini has no SMS */
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{
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"Macmini1,1", "Apple SMC Mac Mini",
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NULL, NULL, NULL,
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NULL, NULL,
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ASMC_FAN_FUNCS,
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ASMC_MM_TEMPS, ASMC_MM_TEMPNAMES, ASMC_MM_TEMPDESCS
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},
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{ NULL, NULL }
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};
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#undef ASMC_SMS_FUNCS
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#undef ASMC_FAN_FUNCS
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#undef ASMC_LIGHT_FUNCS
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/*
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* Driver methods.
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*/
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static device_method_t asmc_methods[] = {
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DEVMETHOD(device_identify, asmc_identify),
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DEVMETHOD(device_probe, asmc_probe),
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DEVMETHOD(device_attach, asmc_attach),
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DEVMETHOD(device_detach, asmc_detach),
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{ 0, 0 }
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};
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static driver_t asmc_driver = {
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"asmc",
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asmc_methods,
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sizeof(struct asmc_softc)
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};
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static devclass_t asmc_devclass;
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DRIVER_MODULE(asmc, isa, asmc_driver, asmc_devclass, NULL, NULL);
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static void
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asmc_identify(driver_t *driver, device_t parent)
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{
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if (device_find_child(parent, "asmc", -1) == NULL &&
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asmc_match(parent))
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BUS_ADD_CHILD(parent, 0, "asmc", -1);
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}
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static struct asmc_model *
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asmc_match(device_t dev)
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{
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int i;
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char *model;
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model = getenv("smbios.system.product");
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for (i = 0; asmc_models[i].smc_model; i++) {
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if (!strncmp(model, asmc_models[i].smc_model, strlen(model))) {
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freeenv(model);
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return (&asmc_models[i]);
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}
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}
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freeenv(model);
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return (NULL);
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}
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static int
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asmc_probe(device_t dev)
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{
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struct asmc_model *model;
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if (resource_disabled("asmc", 0))
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return (ENXIO);
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model = asmc_match(dev);
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if (!model)
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return (ENXIO);
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if (isa_get_irq(dev) == -1)
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bus_set_resource(dev, SYS_RES_IRQ, 0, ASMC_IRQ, 1);
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device_set_desc(dev, model->smc_desc);
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return (BUS_PROBE_DEFAULT);
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}
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static int
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asmc_attach(device_t dev)
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{
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int i, j;
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int ret;
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char name[2];
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struct asmc_softc *sc = device_get_softc(dev);
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struct sysctl_ctx_list *sysctlctx;
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struct sysctl_oid *sysctlnode;
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struct asmc_model *model;
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sysctlctx = device_get_sysctl_ctx(dev);
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sysctlnode = device_get_sysctl_tree(dev);
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model = asmc_match(dev);
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mtx_init(&sc->sc_mtx, "asmc", NULL, MTX_SPIN);
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sc->sc_model = model;
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asmc_init(dev);
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/*
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* dev.asmc.n.fan.* tree.
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*/
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sc->sc_fan_tree[0] = SYSCTL_ADD_NODE(sysctlctx,
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SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "fan",
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CTLFLAG_RD, 0, "Fan Root Tree");
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for (i = 1; i <= sc->sc_nfan; i++) {
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j = i - 1;
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name[0] = '0' + j;
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name[1] = 0;
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sc->sc_fan_tree[i] = SYSCTL_ADD_NODE(sysctlctx,
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SYSCTL_CHILDREN(sc->sc_fan_tree[0]),
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OID_AUTO, name, CTLFLAG_RD, 0,
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"Fan Subtree");
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SYSCTL_ADD_PROC(sysctlctx,
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SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
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OID_AUTO, "speed", CTLTYPE_INT | CTLFLAG_RD,
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dev, j, model->smc_fan_speed, "I",
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"Fan speed in RPM");
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SYSCTL_ADD_PROC(sysctlctx,
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SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
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OID_AUTO, "safespeed",
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CTLTYPE_INT | CTLFLAG_RD,
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dev, j, model->smc_fan_safespeed, "I",
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"Fan safe speed in RPM");
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SYSCTL_ADD_PROC(sysctlctx,
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SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
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OID_AUTO, "minspeed",
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CTLTYPE_INT | CTLFLAG_RD,
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dev, j, model->smc_fan_minspeed, "I",
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"Fan minimum speed in RPM");
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SYSCTL_ADD_PROC(sysctlctx,
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SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
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OID_AUTO, "maxspeed",
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CTLTYPE_INT | CTLFLAG_RD,
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dev, j, model->smc_fan_maxspeed, "I",
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"Fan maximum speed in RPM");
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SYSCTL_ADD_PROC(sysctlctx,
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SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
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OID_AUTO, "targetspeed",
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CTLTYPE_INT | CTLFLAG_RD,
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dev, j, model->smc_fan_targetspeed, "I",
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"Fan target speed in RPM");
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}
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/*
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* dev.asmc.n.temp tree.
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*/
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sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx,
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SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp",
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CTLFLAG_RD, 0, "Temperature sensors");
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for (i = 0; model->smc_temps[i]; i++) {
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SYSCTL_ADD_PROC(sysctlctx,
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SYSCTL_CHILDREN(sc->sc_temp_tree),
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OID_AUTO, model->smc_tempnames[i],
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CTLTYPE_INT | CTLFLAG_RD,
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dev, i, asmc_temp_sysctl, "I",
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model->smc_tempdescs[i]);
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}
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if (model->smc_sms_x == NULL)
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goto nosms;
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/*
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* dev.asmc.n.sms tree.
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*/
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sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx,
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SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms",
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CTLFLAG_RD, 0, "Sudden Motion Sensor");
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SYSCTL_ADD_PROC(sysctlctx,
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SYSCTL_CHILDREN(sc->sc_sms_tree),
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OID_AUTO, "x", CTLTYPE_INT | CTLFLAG_RD,
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dev, 0, model->smc_sms_x, "I",
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"Sudden Motion Sensor X value");
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SYSCTL_ADD_PROC(sysctlctx,
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SYSCTL_CHILDREN(sc->sc_sms_tree),
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OID_AUTO, "y", CTLTYPE_INT | CTLFLAG_RD,
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dev, 0, model->smc_sms_y, "I",
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"Sudden Motion Sensor Y value");
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SYSCTL_ADD_PROC(sysctlctx,
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SYSCTL_CHILDREN(sc->sc_sms_tree),
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OID_AUTO, "z", CTLTYPE_INT | CTLFLAG_RD,
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dev, 0, model->smc_sms_z, "I",
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"Sudden Motion Sensor Z value");
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/*
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* dev.asmc.n.light
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*/
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if (model->smc_light_left) {
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sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx,
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SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light",
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CTLFLAG_RD, 0, "Keyboard backlight sensors");
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SYSCTL_ADD_PROC(sysctlctx,
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SYSCTL_CHILDREN(sc->sc_light_tree),
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OID_AUTO, "left", CTLTYPE_INT | CTLFLAG_RW,
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dev, 0, model->smc_light_left, "I",
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"Keyboard backlight left sensor");
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SYSCTL_ADD_PROC(sysctlctx,
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SYSCTL_CHILDREN(sc->sc_light_tree),
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OID_AUTO, "right", CTLTYPE_INT | CTLFLAG_RW,
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dev, 0, model->smc_light_right, "I",
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"Keyboard backlight right sensor");
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}
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/*
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* Need a taskqueue to send devctl_notify() events
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* when the SMS interrupt us.
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*
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* PI_REALTIME is used due to the sensitivity of the
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* interrupt. An interrupt from the SMS means that the
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* disk heads should be turned off as quickly as possible.
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*
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* We only need to do this for the non INTR_FILTER case.
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*/
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sc->sc_sms_tq = NULL;
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#ifndef INTR_FILTER
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TASK_INIT(&sc->sc_sms_task, 0, asmc_sms_task, sc);
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sc->sc_sms_tq = taskqueue_create_fast("asmc_taskq", M_WAITOK,
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taskqueue_thread_enqueue, &sc->sc_sms_tq);
|
||||
taskqueue_start_threads(&sc->sc_sms_tq, 1, PI_REALTIME, "%s sms taskq",
|
||||
device_get_nameunit(dev));
|
||||
#endif
|
||||
/*
|
||||
* Allocate an IRQ for the SMS.
|
||||
*/
|
||||
sc->sc_rid = 0;
|
||||
sc->sc_res = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->sc_rid,
|
||||
ASMC_IRQ, ASMC_IRQ, 1, RF_ACTIVE);
|
||||
if (sc->sc_res == NULL) {
|
||||
device_printf(dev, "unable to allocate IRQ resource\n");
|
||||
ret = ENXIO;
|
||||
goto err2;
|
||||
}
|
||||
|
||||
ret = bus_setup_intr(dev, sc->sc_res,
|
||||
INTR_TYPE_MISC | INTR_MPSAFE,
|
||||
#ifdef INTR_FILTER
|
||||
asmc_sms_intrfast, asmc_sms_handler,
|
||||
#else
|
||||
asmc_sms_intrfast, NULL,
|
||||
#endif
|
||||
dev, &sc->sc_cookie);
|
||||
|
||||
if (ret) {
|
||||
device_printf(dev, "unable to setup SMS IRQ\n");
|
||||
goto err1;
|
||||
}
|
||||
nosms:
|
||||
return (0);
|
||||
err1:
|
||||
bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid, sc->sc_res);
|
||||
err2:
|
||||
mtx_destroy(&sc->sc_mtx);
|
||||
if (sc->sc_sms_tq)
|
||||
taskqueue_free(sc->sc_sms_tq);
|
||||
|
||||
return (ret);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_detach(device_t dev)
|
||||
{
|
||||
struct asmc_softc *sc = device_get_softc(dev);
|
||||
|
||||
if (sc->sc_sms_tq) {
|
||||
taskqueue_drain(sc->sc_sms_tq, &sc->sc_sms_task);
|
||||
taskqueue_free(sc->sc_sms_tq);
|
||||
}
|
||||
if (sc->sc_cookie)
|
||||
bus_teardown_intr(dev, sc->sc_res, sc->sc_cookie);
|
||||
if (sc->sc_res)
|
||||
bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid, sc->sc_res);
|
||||
mtx_destroy(&sc->sc_mtx);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_init(device_t dev)
|
||||
{
|
||||
struct asmc_softc *sc = device_get_softc(dev);
|
||||
int i, error = 1;
|
||||
uint8_t buf[4];
|
||||
|
||||
if (sc->sc_model->smc_sms_x == NULL)
|
||||
goto nosms;
|
||||
|
||||
/*
|
||||
* We are ready to recieve interrupts from the SMS.
|
||||
*/
|
||||
buf[0] = 0x01;
|
||||
asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1);
|
||||
DELAY(50);
|
||||
|
||||
/*
|
||||
* Initiate the polling intervals.
|
||||
*/
|
||||
buf[0] = 20; /* msecs */
|
||||
asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1);
|
||||
DELAY(200);
|
||||
|
||||
buf[0] = 20; /* msecs */
|
||||
asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1);
|
||||
DELAY(200);
|
||||
|
||||
buf[0] = 0x00;
|
||||
buf[1] = 0x60;
|
||||
asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2);
|
||||
DELAY(200);
|
||||
|
||||
buf[0] = 0x01;
|
||||
buf[1] = 0xc0;
|
||||
asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2);
|
||||
DELAY(200);
|
||||
|
||||
/*
|
||||
* I'm not sure what this key does, but it seems to be
|
||||
* required.
|
||||
*/
|
||||
buf[0] = 0x01;
|
||||
asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1);
|
||||
DELAY(50);
|
||||
|
||||
/*
|
||||
* Wait up to 5 seconds for SMS initialization.
|
||||
*/
|
||||
for (i = 0; i < 10000; i++) {
|
||||
if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 &&
|
||||
(buf[0] != 0x00 || buf[1] != 0x00)) {
|
||||
error = 0;
|
||||
goto nosms;
|
||||
}
|
||||
|
||||
buf[0] = ASMC_SMS_INIT1;
|
||||
buf[1] = ASMC_SMS_INIT2;
|
||||
asmc_key_write(dev, ASMC_KEY_SMS, buf, 2);
|
||||
DELAY(50);
|
||||
}
|
||||
|
||||
asmc_sms_calibrate(dev);
|
||||
nosms:
|
||||
sc->sc_nfan = asmc_fan_count(dev);
|
||||
if (sc->sc_nfan > ASMC_MAXFANS) {
|
||||
device_printf(dev, "more than %d fans were detected. Please "
|
||||
"report this.\n", ASMC_MAXFANS);
|
||||
sc->sc_nfan = ASMC_MAXFANS;
|
||||
}
|
||||
|
||||
if (bootverbose) {
|
||||
/*
|
||||
* XXX: The number of keys is a 32 bit buffer, but
|
||||
* right now Apple only uses the last 8 bit.
|
||||
*/
|
||||
asmc_key_read(dev, ASMC_NKEYS, buf, 4);
|
||||
device_printf(dev, "number of keys: %d\n", buf[3]);
|
||||
}
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
/*
|
||||
* We need to make sure that the SMC acks the byte sent.
|
||||
* Just wait up to 100 ms.
|
||||
*/
|
||||
static int
|
||||
asmc_wait(device_t dev, uint8_t val)
|
||||
{
|
||||
u_int i;
|
||||
|
||||
val = val & ASMC_STATUS_MASK;
|
||||
|
||||
for (i = 0; i < 1000; i++) {
|
||||
if ((inb(ASMC_CMDPORT) & ASMC_STATUS_MASK) == val)
|
||||
return (0);
|
||||
DELAY(10);
|
||||
}
|
||||
|
||||
device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, val,
|
||||
inb(ASMC_CMDPORT));
|
||||
|
||||
return (1);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len)
|
||||
{
|
||||
int i, error = 1;
|
||||
struct asmc_softc *sc = device_get_softc(dev);
|
||||
|
||||
mtx_lock_spin(&sc->sc_mtx);
|
||||
|
||||
outb(ASMC_CMDPORT, ASMC_CMDREAD);
|
||||
if (asmc_wait(dev, 0x0c))
|
||||
goto out;
|
||||
|
||||
for (i = 0; i < 4; i++) {
|
||||
outb(ASMC_DATAPORT, key[i]);
|
||||
if (asmc_wait(dev, 0x04))
|
||||
goto out;
|
||||
}
|
||||
|
||||
outb(ASMC_DATAPORT, len);
|
||||
|
||||
for (i = 0; i < len; i++) {
|
||||
if (asmc_wait(dev, 0x05))
|
||||
goto out;
|
||||
buf[i] = inb(ASMC_DATAPORT);
|
||||
}
|
||||
|
||||
error = 0;
|
||||
out:
|
||||
mtx_unlock_spin(&sc->sc_mtx);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len)
|
||||
{
|
||||
int i, error = -1;
|
||||
struct asmc_softc *sc = device_get_softc(dev);
|
||||
|
||||
mtx_lock_spin(&sc->sc_mtx);
|
||||
|
||||
outb(ASMC_CMDPORT, ASMC_CMDWRITE);
|
||||
if (asmc_wait(dev, 0x0c))
|
||||
goto out;
|
||||
|
||||
for (i = 0; i < 4; i++) {
|
||||
outb(ASMC_DATAPORT, key[i]);
|
||||
if (asmc_wait(dev, 0x04))
|
||||
goto out;
|
||||
}
|
||||
|
||||
outb(ASMC_DATAPORT, len);
|
||||
|
||||
for (i = 0; i < len; i++) {
|
||||
if (asmc_wait(dev, 0x04))
|
||||
goto out;
|
||||
outb(ASMC_DATAPORT, buf[i]);
|
||||
}
|
||||
|
||||
error = 0;
|
||||
out:
|
||||
mtx_unlock_spin(&sc->sc_mtx);
|
||||
|
||||
return (error);
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
* Fan control functions.
|
||||
*/
|
||||
static int
|
||||
asmc_fan_count(device_t dev)
|
||||
{
|
||||
uint8_t buf[1];
|
||||
|
||||
if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, 1) < 0)
|
||||
return (-1);
|
||||
|
||||
return (buf[0]);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_fan_getvalue(device_t dev, const char *key, int fan)
|
||||
{
|
||||
int speed;
|
||||
uint8_t buf[2];
|
||||
char fankey[5];
|
||||
|
||||
snprintf(fankey, sizeof(fankey), key, fan);
|
||||
if (asmc_key_read(dev, fankey, buf, 2) < 0)
|
||||
return (-1);
|
||||
speed = (buf[0] << 6) | (buf[1] >> 2);
|
||||
|
||||
return (speed);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS)
|
||||
{
|
||||
device_t dev = (device_t) arg1;
|
||||
int fan = arg2;
|
||||
int error;
|
||||
int32_t v;
|
||||
|
||||
v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan);
|
||||
error = sysctl_handle_int(oidp, &v, 0, req);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS)
|
||||
{
|
||||
device_t dev = (device_t) arg1;
|
||||
int fan = arg2;
|
||||
int error;
|
||||
int32_t v;
|
||||
|
||||
v = asmc_fan_getvalue(dev, ASMC_KEY_FANSAFESPEED, fan);
|
||||
error = sysctl_handle_int(oidp, &v, 0, req);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS)
|
||||
{
|
||||
device_t dev = (device_t) arg1;
|
||||
int fan = arg2;
|
||||
int error;
|
||||
int32_t v;
|
||||
|
||||
v = asmc_fan_getvalue(dev, ASMC_KEY_FANMINSPEED, fan);
|
||||
error = sysctl_handle_int(oidp, &v, 0, req);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS)
|
||||
{
|
||||
device_t dev = (device_t) arg1;
|
||||
int fan = arg2;
|
||||
int error;
|
||||
int32_t v;
|
||||
|
||||
v = asmc_fan_getvalue(dev, ASMC_KEY_FANMAXSPEED, fan);
|
||||
error = sysctl_handle_int(oidp, &v, 0, req);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS)
|
||||
{
|
||||
device_t dev = (device_t) arg1;
|
||||
int fan = arg2;
|
||||
int error;
|
||||
int32_t v;
|
||||
|
||||
v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan);
|
||||
error = sysctl_handle_int(oidp, &v, 0, req);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
/*
|
||||
* Temperature functions.
|
||||
*/
|
||||
static int
|
||||
asmc_temp_getvalue(device_t dev, const char *key)
|
||||
{
|
||||
uint8_t buf[2];
|
||||
|
||||
/*
|
||||
* Check for invalid temperatures.
|
||||
*/
|
||||
if (asmc_key_read(dev, key, buf, 2) < 0)
|
||||
return (-1);
|
||||
|
||||
return (buf[0]);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_temp_sysctl(SYSCTL_HANDLER_ARGS)
|
||||
{
|
||||
device_t dev = (device_t) arg1;
|
||||
struct asmc_softc *sc = device_get_softc(dev);
|
||||
int error, val;
|
||||
|
||||
val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]);
|
||||
error = sysctl_handle_int(oidp, &val, 0, req);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
/*
|
||||
* Sudden Motion Sensor functions.
|
||||
*/
|
||||
static int
|
||||
asmc_sms_read(device_t dev, const char *key, int16_t *val)
|
||||
{
|
||||
uint8_t buf[2];
|
||||
int error;
|
||||
|
||||
/* no need to do locking here as asmc_key_read() already does it */
|
||||
switch (key[3]) {
|
||||
case 'X':
|
||||
case 'Y':
|
||||
case 'Z':
|
||||
error = asmc_key_read(dev, key, buf, 2);
|
||||
break;
|
||||
default:
|
||||
device_printf(dev, "%s called with invalid argument %s\n",
|
||||
__func__, key);
|
||||
error = 1;
|
||||
goto out;
|
||||
}
|
||||
*val = ((int16_t)buf[0] << 8) | buf[1];
|
||||
out:
|
||||
return (error);
|
||||
}
|
||||
|
||||
static void
|
||||
asmc_sms_calibrate(device_t dev)
|
||||
{
|
||||
struct asmc_softc *sc = device_get_softc(dev);
|
||||
|
||||
asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x);
|
||||
asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y);
|
||||
asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_sms_intrfast(void *arg)
|
||||
{
|
||||
uint8_t type;
|
||||
device_t dev = (device_t) arg;
|
||||
struct asmc_softc *sc = device_get_softc(dev);
|
||||
|
||||
mtx_lock_spin(&sc->sc_mtx);
|
||||
type = inb(ASMC_INTPORT);
|
||||
mtx_unlock_spin(&sc->sc_mtx);
|
||||
|
||||
sc->sc_sms_intrtype = type;
|
||||
asmc_sms_printintr(dev, type);
|
||||
|
||||
#ifdef INTR_FILTER
|
||||
return (FILTER_SCHEDULE_THREAD | FILTER_HANDLED);
|
||||
#else
|
||||
taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task);
|
||||
#endif
|
||||
return (FILTER_HANDLED);
|
||||
}
|
||||
|
||||
#ifdef INTR_FILTER
|
||||
static void
|
||||
asmc_sms_handler(void *arg)
|
||||
{
|
||||
struct asmc_softc *sc = device_get_softc(arg);
|
||||
|
||||
asmc_sms_task(sc, 0);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
static void
|
||||
asmc_sms_printintr(device_t dev, uint8_t type)
|
||||
{
|
||||
|
||||
switch (type) {
|
||||
case ASMC_SMS_INTFF:
|
||||
device_printf(dev, "WARNING: possible free fall!\n");
|
||||
break;
|
||||
case ASMC_SMS_INTHA:
|
||||
device_printf(dev, "WARNING: high acceleration detected!\n");
|
||||
break;
|
||||
case ASMC_SMS_INTSH:
|
||||
device_printf(dev, "WARNING: possible shock!\n");
|
||||
break;
|
||||
default:
|
||||
device_printf(dev, "%s unknown interrupt\n", __func__);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
asmc_sms_task(void *arg, int pending)
|
||||
{
|
||||
struct asmc_softc *sc = (struct asmc_softc *)arg;
|
||||
char notify[16];
|
||||
int type;
|
||||
|
||||
switch (sc->sc_sms_intrtype) {
|
||||
case ASMC_SMS_INTFF:
|
||||
type = 2;
|
||||
break;
|
||||
case ASMC_SMS_INTHA:
|
||||
type = 1;
|
||||
break;
|
||||
case ASMC_SMS_INTSH:
|
||||
type = 0;
|
||||
break;
|
||||
default:
|
||||
type = 255;
|
||||
}
|
||||
|
||||
snprintf(notify, sizeof(notify), " notify=0x%x", type);
|
||||
devctl_notify("ISA", "asmc", "SMS", notify);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS)
|
||||
{
|
||||
device_t dev = (device_t) arg1;
|
||||
int error;
|
||||
int16_t val;
|
||||
int32_t v;
|
||||
|
||||
asmc_sms_read(dev, ASMC_KEY_SMS_X, &val);
|
||||
v = (int32_t) val;
|
||||
error = sysctl_handle_int(oidp, &v, 0, req);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS)
|
||||
{
|
||||
device_t dev = (device_t) arg1;
|
||||
int error;
|
||||
int16_t val;
|
||||
int32_t v;
|
||||
|
||||
asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val);
|
||||
v = (int32_t) val;
|
||||
error = sysctl_handle_int(oidp, &v, 0, req);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS)
|
||||
{
|
||||
device_t dev = (device_t) arg1;
|
||||
int error;
|
||||
int16_t val;
|
||||
int32_t v;
|
||||
|
||||
asmc_sms_read(dev, ASMC_KEY_SMS_Z, &val);
|
||||
v = (int32_t) val;
|
||||
error = sysctl_handle_int(oidp, &v, sizeof(v), req);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS)
|
||||
{
|
||||
device_t dev = (device_t) arg1;
|
||||
uint8_t buf[6];
|
||||
int error;
|
||||
unsigned int level;
|
||||
int32_t v;
|
||||
|
||||
asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, 6);
|
||||
v = buf[2];
|
||||
error = sysctl_handle_int(oidp, &v, sizeof(v), req);
|
||||
if (error == 0 && req->newptr != NULL) {
|
||||
level = *(unsigned int *)req->newptr;
|
||||
if (level > 255)
|
||||
return (EINVAL);
|
||||
buf[0] = level;
|
||||
buf[1] = 0x00;
|
||||
asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, 2);
|
||||
}
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
static int
|
||||
asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS)
|
||||
{
|
||||
device_t dev = (device_t) arg1;
|
||||
uint8_t buf[6];
|
||||
int error;
|
||||
unsigned int level;
|
||||
int32_t v;
|
||||
|
||||
asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, 6);
|
||||
v = buf[2];
|
||||
error = sysctl_handle_int(oidp, &v, sizeof(v), req);
|
||||
if (error == 0 && req->newptr != NULL) {
|
||||
level = *(unsigned int *)req->newptr;
|
||||
if (level > 255)
|
||||
return (EINVAL);
|
||||
buf[0] = level;
|
||||
buf[1] = 0x00;
|
||||
asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, 2);
|
||||
}
|
||||
|
||||
return (error);
|
||||
}
|
||||
160
sys/dev/asmc/asmcvar.h
Normal file
160
sys/dev/asmc/asmcvar.h
Normal file
@ -0,0 +1,160 @@
|
||||
/*-
|
||||
* Copyright (c) 2007 Rui Paulo <rpaulo@FreeBSD.org>
|
||||
* 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 ``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 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.
|
||||
*
|
||||
* $FreeBSD$
|
||||
*
|
||||
*/
|
||||
|
||||
#define ASMC_MAXFANS 2
|
||||
|
||||
struct asmc_softc {
|
||||
device_t sc_dev;
|
||||
struct mtx sc_mtx;
|
||||
int sc_nfan;
|
||||
int16_t sms_rest_x;
|
||||
int16_t sms_rest_y;
|
||||
int16_t sms_rest_z;
|
||||
struct sysctl_oid *sc_fan_tree[ASMC_MAXFANS+1];
|
||||
struct sysctl_oid *sc_temp_tree;
|
||||
struct sysctl_oid *sc_sms_tree;
|
||||
struct sysctl_oid *sc_light_tree;
|
||||
struct asmc_model *sc_model;
|
||||
int sc_rid;
|
||||
struct resource *sc_res;
|
||||
void *sc_cookie;
|
||||
int sc_sms_intrtype;
|
||||
struct taskqueue *sc_sms_tq;
|
||||
struct task sc_sms_task;
|
||||
};
|
||||
|
||||
/*
|
||||
* The Sudden Motion Sensor is able to generate an interrupt when
|
||||
* there are certain critical conditions (free fall, high acceleration and
|
||||
* shocks).
|
||||
* The following IRQ is used.
|
||||
*/
|
||||
#define ASMC_IRQ 6
|
||||
|
||||
/*
|
||||
* Data port.
|
||||
*/
|
||||
#define ASMC_DATAPORT 0x300
|
||||
#define ASMC_STATUS_MASK 0x0f
|
||||
|
||||
/*
|
||||
* Command port.
|
||||
*/
|
||||
#define ASMC_CMDPORT 0x304
|
||||
#define ASMC_CMDREAD 0x10
|
||||
#define ASMC_CMDWRITE 0x11
|
||||
|
||||
/*
|
||||
* Interrupt port.
|
||||
*/
|
||||
#define ASMC_INTPORT 0x31f
|
||||
|
||||
|
||||
/* Number of keys */
|
||||
#define ASMC_NKEYS "#KEY" /* RO; 4 bytes */
|
||||
|
||||
/*
|
||||
* Fan control via SMC.
|
||||
*/
|
||||
#define ASMC_KEY_FANCOUNT "FNum" /* RO; 1 byte */
|
||||
#define ASMC_KEY_FANMANUAL "FS! " /* RW; 2 bytes */
|
||||
#define ASMC_KEY_FANSPEED "F%dAc" /* RO; 2 bytes */
|
||||
#define ASMC_KEY_FANMINSPEED "F%dMn" /* RO; 2 bytes */
|
||||
#define ASMC_KEY_FANMAXSPEED "F%dMx" /* RO; 2 bytes */
|
||||
#define ASMC_KEY_FANSAFESPEED "F%dSf" /* RO; 2 bytes */
|
||||
#define ASMC_KEY_FANTARGETSPEED "F%dTg" /* RW; 2 bytes */
|
||||
|
||||
/*
|
||||
* Sudden Motion Sensor (SMS).
|
||||
*/
|
||||
#define ASMC_SMS_INIT1 0xe0
|
||||
#define ASMC_SMS_INIT2 0xf8
|
||||
#define ASMC_KEY_SMS "MOCN" /* RW; 2 bytes */
|
||||
#define ASMC_KEY_SMS_X "MO_X" /* RO; 2 bytes */
|
||||
#define ASMC_KEY_SMS_Y "MO_Y" /* RO; 2 bytes */
|
||||
#define ASMC_KEY_SMS_Z "MO_Z" /* RO; 2 bytes */
|
||||
#define ASMC_KEY_SMS_LOW "MOLT" /* RW; 2 bytes */
|
||||
#define ASMC_KEY_SMS_HIGH "MOHT" /* RW; 2 bytes */
|
||||
#define ASMC_KEY_SMS_LOW_INT "MOLD" /* RW; 1 byte */
|
||||
#define ASMC_KEY_SMS_HIGH_INT "MOHD" /* RW; 1 byte */
|
||||
#define ASMC_KEY_SMS_FLAG "MSDW" /* RW; 1 byte */
|
||||
#define ASMC_SMS_INTFF 0x60 /* Free fall Interrupt */
|
||||
#define ASMC_SMS_INTHA 0x6f /* High Acceleration Interrupt */
|
||||
#define ASMC_SMS_INTSH 0x80 /* Shock Interrupt */
|
||||
|
||||
/*
|
||||
* Keyboard backlight.
|
||||
*/
|
||||
#define ASMC_KEY_LIGHTLEFT "ALV0" /* RO; 6 bytes */
|
||||
#define ASMC_KEY_LIGHTRIGHT "ALV1" /* RO; 6 bytes */
|
||||
#define ASMC_KEY_LIGHTVALUE "LKSB" /* WO; 2 bytes */
|
||||
|
||||
/*
|
||||
* Clamshell.
|
||||
*/
|
||||
#define ASMC_KEY_CLAMSHELL "MSLD" /* RO; 1 byte */
|
||||
|
||||
/*
|
||||
* Interrupt keys.
|
||||
*/
|
||||
#define ASMC_KEY_INTOK "NTOK" /* WO; 1 byte */
|
||||
|
||||
/*
|
||||
* Temperatures.
|
||||
*
|
||||
* First for MacBook, second for MacBook Pro, then for Intel Mac Mini.
|
||||
*
|
||||
*/
|
||||
#define ASMC_MB_TEMPS { "TB0T", "TN0P", "TN1P", "Th0H", "Th1H", \
|
||||
"TM0P", NULL }
|
||||
#define ASMC_MB_TEMPNAMES { "enclosure", "northbridge1", \
|
||||
"northbridge2", "heatsink1", \
|
||||
"heatsink2", "memory", }
|
||||
#define ASMC_MB_TEMPDESCS { "Enclosure Bottomside", \
|
||||
"Northbridge Point 1", \
|
||||
"Northbridge Point 2", "Heatsink 1", \
|
||||
"Heatsink 2", "Memory Bank A", }
|
||||
|
||||
#define ASMC_MBP_TEMPS { "TB0T", "Th0H", "Th1H", "Tm0P", \
|
||||
"TG0H", "TG0P", "TG0T", NULL }
|
||||
|
||||
#define ASMC_MBP_TEMPNAMES { "enclosure", "heatsink1", \
|
||||
"heatsink2", "memory", "graphics", \
|
||||
"graphicssink", "unknown", }
|
||||
|
||||
#define ASMC_MBP_TEMPDESCS { "Enclosure Bottomside", \
|
||||
"Heatsink 1", "Heatsink 2", \
|
||||
"Memory Controller", \
|
||||
"Graphics Chip", "Graphics Heatsink", \
|
||||
"Unknown", }
|
||||
|
||||
#define ASMC_MM_TEMPS { "TN0P", "TN1P", NULL }
|
||||
#define ASMC_MM_TEMPNAMES { "northbridge1", "northbridge2" }
|
||||
#define ASMC_MM_TEMPDESCS { "Northbridge Point 1", \
|
||||
"Northbridge Point 2" }
|
||||
Loading…
Reference in New Issue
Block a user