Re: Apple SMC chip - driver to read sensors and temperatures
Hi,
On Fri, Jan 24, 2014 at 11:00:32PM +, peb.nowa...@bluewin.ch wrote:
I was working on the asmc kernel driver for the Macbooks. I have a
MBPro8.2 (mid 2011), and came to get the driver installed, reading all
sensors and temperatures into the hw.sensors framework.
See
attached diffs. Beginning line 30 I describe the ideas for the driver.
Further information available, also a todo list. Thx to Joshua@, who
helped me to create the diffs below, and provided input for the todo
list. Looking forward to get some feedback, especially on other Apple
hardware.
I tested this on my MacBook Air 4,2 and got the following in dmesg:
ASMC_MATCH
BIOS: vendor Apple Inc., product MacBookAir4,2
** ERROR: no model found for MacBookAir4,2
Hence, I added blindly the following asmc_model line to your diff:
+ { MacBookAir4,2, 3, 0, 0, 63, 511, 10 },
With this line I got the following in sysctl output:
hw.sensors.applesmc.fan0=1992 RPM (fan0_speed)
hw.sensors.applesmc.fan1=0 RPM (fan1_speed), UNKNOWN
hw.sensors.applesmc.fan2=2000 RPM (fan0_targetspeed)
hw.sensors.applesmc.fan3=0 RPM (fan1_targetspeed), UNKNOWN
hw.sensors.applesmc.fan4=0 RPM (fan0_safespeed), UNKNOWN
hw.sensors.applesmc.fan5=0 RPM (fan1_safespeed), UNKNOWN
hw.sensors.applesmc.fan6=2000 RPM (fan0_minspeed)
hw.sensors.applesmc.fan7=0 RPM (fan1_minspeed), UNKNOWN
hw.sensors.applesmc.fan8=6500 RPM (fan0_maxspeed)
hw.sensors.applesmc.fan9=0 RPM (fan1_maxspeed), UNKNOWN
hw.sensors.applesmc.raw0=36 (Enclosure Bottom)
hw.sensors.applesmc.raw1=76 (CPU Temperature Diode)
hw.sensors.applesmc.illuminance0=0.00 lx (lightright)
hw.sensors.applesmc.illuminance1=0.00 lx (lightleft)
hw.sensors.applesmc.acceleration0=0. m/s^2 (sms_x), UNKNOWN
hw.sensors.applesmc.acceleration1=0. m/s^2 (sms_y), UNKNOWN
hw.sensors.applesmc.acceleration2=0. m/s^2 (sms_z), UNKNOWN
Since, it works only partially, I guess the asmc_model line requires
further tweaking? Anything else I can test?
Whole dmesg follows below.
Thanks,
Regards,
Joerg
OpenBSD 5.5-beta (GENERIC.MP) #1: Sun Feb 2 13:14:43 CET 2014
r...@marvin.hq.umaxx.net:/usr/src_apple/sys/arch/amd64/compile/GENERIC.MP
RTC BIOS diagnostic error cfclock_battery,ROM_cksum,fixed_disk,invalid_time
real mem = 4185079808 (3991MB)
avail mem = 4065439744 (3877MB)
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xe (53 entries)
bios0: vendor Apple Inc. version MBA41.88Z.0077.B0F.1201241549 date 01/24/2012
bios0: Apple Inc. MacBookAir4,2
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP HPET APIC SBST ECDT SSDT SSDT SSDT SSDT SSDT SSDT SSDT
SSDT MCFG SSDT SSDT SSDT
acpi0: wakeup devices P0P2(S4) EC__(S4) HDEF(S4) ARPT(S4) RP02(S4) EHC1(S3)
EHC2(S3) ADP1(S4) LID0(S4)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpihpet0 at acpi0: 14318179 Hz
acpimadt0 at acpi0 addr 0xfee0: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i7-2677M CPU @ 1.80GHz, 1800.30 MHz
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 100MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.1.2, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Core(TM) i7-2677M CPU @ 1.80GHz, 1800.02 MHz
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 1 (application processor)
cpu2: Intel(R) Core(TM) i7-2677M CPU @ 1.80GHz, 1800.02 MHz
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC
cpu2: 256KB 64b/line 8-way L2 cache
cpu2: smt 1, core 0, package 0
cpu3 at mainbus0: apid 3 (application processor)
cpu3: Intel(R) Core(TM) i7-2677M CPU @ 1.80GHz, 1800.02 MHz
cpu3:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC
cpu3: 256KB 64b/line 8-way L2 cache
cpu3: smt 1, core 1, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec0, version 20, 24 pins
ioapic0: misconfigured as apic 0, remapped to apid 2
acpiec0 at acpi0
acpimcfg0 at
Re: Apple SMC chip - driver to read sensors and temperatures
Thanx for testing the driver. As you say, the driver needs further tweaking. I
am in a very preliminary state a ith the coding :-)
Your information is valuable for the future process.
I would correct the mode line for your model. Need to get the right values for
the temps and sensors;-)
It is interesting, that the MacBook air has no x, y, z support - good! There is
only SDD Drive, no need to get the heads of a standard HDD drive parked by the
motion sensors.
I am currently working on the light sensors to get my keyboard backlit...
have you tried the trackpad driver from Joshua?
MfG, regards, cordialement
Volker Nowarra
+41 79 503 4849
Envoyé de mon iPhone
Am 02.02.2014 um 13:45 schrieb Joerg Jung m...@umaxx.net:
Hi,
On Fri, Jan 24, 2014 at 11:00:32PM +, peb.nowa...@bluewin.ch wrote:
I was working on the asmc kernel driver for the Macbooks. I have a
MBPro8.2 (mid 2011), and came to get the driver installed, reading all
sensors and temperatures into the hw.sensors framework.
See
attached diffs. Beginning line 30 I describe the ideas for the driver.
Further information available, also a todo list. Thx to Joshua@, who
helped me to create the diffs below, and provided input for the todo
list. Looking forward to get some feedback, especially on other Apple
hardware.
I tested this on my MacBook Air 4,2 and got the following in dmesg:
ASMC_MATCH
BIOS: vendor Apple Inc., product MacBookAir4,2
** ERROR: no model found for MacBookAir4,2
Hence, I added blindly the following asmc_model line to your diff:
+{ MacBookAir4,2, 3, 0, 0, 63, 511, 10 },
With this line I got the following in sysctl output:
hw.sensors.applesmc.fan0=1992 RPM (fan0_speed)
hw.sensors.applesmc.fan1=0 RPM (fan1_speed), UNKNOWN
hw.sensors.applesmc.fan2=2000 RPM (fan0_targetspeed)
hw.sensors.applesmc.fan3=0 RPM (fan1_targetspeed), UNKNOWN
hw.sensors.applesmc.fan4=0 RPM (fan0_safespeed), UNKNOWN
hw.sensors.applesmc.fan5=0 RPM (fan1_safespeed), UNKNOWN
hw.sensors.applesmc.fan6=2000 RPM (fan0_minspeed)
hw.sensors.applesmc.fan7=0 RPM (fan1_minspeed), UNKNOWN
hw.sensors.applesmc.fan8=6500 RPM (fan0_maxspeed)
hw.sensors.applesmc.fan9=0 RPM (fan1_maxspeed), UNKNOWN
hw.sensors.applesmc.raw0=36 (Enclosure Bottom)
hw.sensors.applesmc.raw1=76 (CPU Temperature Diode)
hw.sensors.applesmc.illuminance0=0.00 lx (lightright)
hw.sensors.applesmc.illuminance1=0.00 lx (lightleft)
hw.sensors.applesmc.acceleration0=0. m/s^2 (sms_x), UNKNOWN
hw.sensors.applesmc.acceleration1=0. m/s^2 (sms_y), UNKNOWN
hw.sensors.applesmc.acceleration2=0. m/s^2 (sms_z), UNKNOWN
Since, it works only partially, I guess the asmc_model line requires
further tweaking? Anything else I can test?
Whole dmesg follows below.
Thanks,
Regards,
Joerg
OpenBSD 5.5-beta (GENERIC.MP) #1: Sun Feb 2 13:14:43 CET 2014
r...@marvin.hq.umaxx.net:/usr/src_apple/sys/arch/amd64/compile/GENERIC.MP
RTC BIOS diagnostic error cfclock_battery,ROM_cksum,fixed_disk,invalid_time
real mem = 4185079808 (3991MB)
avail mem = 4065439744 (3877MB)
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xe (53 entries)
bios0: vendor Apple Inc. version MBA41.88Z.0077.B0F.1201241549 date
01/24/2012
bios0: Apple Inc. MacBookAir4,2
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP HPET APIC SBST ECDT SSDT SSDT SSDT SSDT SSDT SSDT
SSDT SSDT MCFG SSDT SSDT SSDT
acpi0: wakeup devices P0P2(S4) EC__(S4) HDEF(S4) ARPT(S4) RP02(S4) EHC1(S3)
EHC2(S3) ADP1(S4) LID0(S4)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpihpet0 at acpi0: 14318179 Hz
acpimadt0 at acpi0 addr 0xfee0: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i7-2677M CPU @ 1.80GHz, 1800.30 MHz
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 100MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.1.2, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Core(TM) i7-2677M CPU @ 1.80GHz, 1800.02 MHz
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 1 (application processor)
cpu2: Intel(R) Core(TM) i7-2677M CPU @ 1.80GHz, 1800.02 MHz
cpu2:
Apple SMC chip - driver to read sensors and temperatures
Hi all running OpenBSD on Apple hardware:
I
was working on the asmc kernel driver for the Macbooks. I have a
MBPro8.2 (mid 2011), and came to get the driver installed, reading all
sensors and temperatures into the hw.sensors framework.
See
attached diffs. Beginning line 30 I describe the ideas for the driver.
Further information available, also a todo list. Thx to Joshua@, who
helped me to create the diffs below, and provided input for the todo
list. Looking forward to get some feedback, especially on other Apple
hardware.
rgds,
Volker
Index: dev/isa/asmc.c
===
RCS file: dev/isa/asmc.c
diff -N dev/isa/asmc.c
--- /dev/null 1 Jan 1970 00:00:00 -
+++ dev/isa/asmc.c 24 Jan 2014 20:24:38 -
@@ -0,0 +1,1317 @@
+/* $OpenBSD: asmc.c,v 0.1 2014/01/14 15:47:16 volker $ */
+/*
+ * Copyright (c) 2013, 2014 Volker Nowarra
+ * Complete rewrite of code in Nov/Dec 2013 from following sources:
+ *
+ * MACOSX:
+ * SmcFanControl.m by Hendrik Holtmann
+ * SmcCommand.c (no reference)
+ * FREEBSD driver by Rui Paulo rpa...@freebsd.org
+ * LINUX driver by Nicolas Boichat nico...@boichat.ch and
+ *Henrik Rydberg rydb...@euromail.se
+ * and the OpenBSD aps.c driver by Jonathan Gray j...@openbsd.org and
+ *Can Erkin Acar cana...@openbsd.org
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED AS IS AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * Driver for Apple's System Management Console (SMC). SMC can be found
+ * on the MacBook, MacBook Pro and Mac Mini, and possibly others ...
+ *
+ * Idea is to match / attach into the kernel, as defined in man 8 config,
+ * section EXAMPLES (kernel building). The function asmc_match() would
+ * read the BIOS, compare it to a defined model in *asmc_models[], and
+ * if match, returns success. The asmc_attach() function would do the
+ * man 9 bus_space handling, and call on success asmc_init().
+ * asmc_init() tries to talk to the SMC chip, and if success prepares
+ * the sensors framework (sysctl hw), and sets up the the calls to
+ * the SMC chip to readsensor values. The Apple SMC has read and write
+ * areas, usually 10 read only values for FANs, 2 values for reading
+ * backlit, and 3 for motion sensors (SMS).
+ * Values can be written to change the FAN speeds. The different Apple
+ * Macs provide up to 36 temperatur sensors !
+ *
+ * Main driver for this development was reduction of code size into kernel,
+ * two binary integers are used for the sensors and temps. This way code
+ * size was reduced from 50KB down to 25KB, and to 15KB on i386.
+ * Details see struct asmc_model.
+ */
+
+/*
+ * man style says, either param.h or types.h, but not both !
+ */
+#include sys/param.h
+#include sys/systm.h
+#include sys/device.h
+#include sys/kernel.h
+#include sys/limits.h
+#include sys/sensors.h
+#include sys/timeout.h
+#include sys/types.h
+#include sys/event.h
+
+#include dev/isa/isareg.h
+#include dev/isa/isavar.h
+
+#include machine/apmvar.h
+#include machine/biosvar.h
+#include machine/bus.h
+#include machine/smbiosvar.h
+
+
+#define ASMCDEBUG
+#if defined(ASMCDEBUG)
+#define DPRINTF(x) do { printf x; } while (0)
+#else
+#define DPRINTF(x)
+#endif
+
+/* ASMC DETAILED DEBUG :-) */
+#define XSMCDDEBUG
+#if defined(ASMCDDEBUG)
+#define DDPRINTF(x)do { printf x; } while (0)
+#else
+#define DDPRINTF(x)
+#endif
+
+
+/*
+ * Observed values, partially from Linux and FreeBSD driver
+ * data and command/status port used by Apple SMC
+ */
+
+#define ASMC_DATAPORT_OFFSET 0x00
+#define ASMC_CMDPORT_OFFSET0x04
+#define ASMC_ADDR_SIZE 0x1f
+#define ASMC_MAX_DATA_LENGTH 32 /* 0x300-0x31f */
+
+/*
+ * Interrupt port
+ */
+#define ASMC_INTPORT_READ()bus_space_read_1(0x300, 0x00, ASMC_ADDR_SIZE)
+
+/*
+ * SMC command modes
+ */
+#define ASMC_READ_CMD 0x10
+#define ASMC_WRITE_CMD 0x11
+#define ASMC_GETKEYBYINDEX_CMD 0x12
+#define ASMC_GETKEYBYTYPE_CMD 0x13
+
+/*
+ * Timings
+ */
+#define ASMC_MIN_WAIT 0x0010
+#define ASMC_MAX_WAIT 0x8000
+#define ASMC_RETRY_WAIT0x0400
+#define ASMC_REFRESH_RATE 7 /* in seconds */
+
+/*
+ * status from SMC chip
+ */
+#define ASMC_STATUS_02 0x02
+#define
