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Commit e46957ed authored by Hans-Jürgen Koch's avatar Hans-Jürgen Koch Committed by Mark M. Hoffman
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hwmon: Add LM93 support 

This patch adds support for the LM93 hardware monitoring chip.
Signed-off-by: default avatarHans J. Koch <hjk@linutronix.de>
Signed-off-by: default avatarMark M. Hoffman <mhoffman@lightlink.com>
parent 875f25d5
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Kernel driver lm93
==================
Supported chips:
* National Semiconductor LM93
Prefix 'lm93'
Addresses scanned: I2C 0x2c-0x2e
Datasheet: http://www.national.com/ds.cgi/LM/LM93.pdf
Author:
Mark M. Hoffman <mhoffman@lightlink.com>
Ported to 2.6 by Eric J. Bowersox <ericb@aspsys.com>
Adapted to 2.6.20 by Carsten Emde <ce@osadl.org>
Modified for mainline integration by Hans J. Koch <hjk@linutronix.de>
Module Parameters
-----------------
(specific to LM93)
* init: integer
Set to non-zero to force some initializations (default is 0).
* disable_block: integer
A "0" allows SMBus block data transactions if the host supports them. A "1"
disables SMBus block data transactions. The default is 0.
* vccp_limit_type: integer array (2)
Configures in7 and in8 limit type, where 0 means absolute and non-zero
means relative. "Relative" here refers to "Dynamic Vccp Monitoring using
VID" from the datasheet. It greatly simplifies the interface to allow
only one set of limits (absolute or relative) to be in operation at a
time (even though the hardware is capable of enabling both). There's
not a compelling use case for enabling both at once, anyway. The default
is "0,0".
* vid_agtl: integer
A "0" configures the VID pins for V(ih) = 2.1V min, V(il) = 0.8V max.
A "1" configures the VID pins for V(ih) = 0.8V min, V(il) = 0.4V max.
(The latter setting is referred to as AGTL+ Compatible in the datasheet.)
I.e. this parameter controls the VID pin input thresholds; if your VID
inputs are not working, try changing this. The default value is "0".
(common among sensor drivers)
* force: short array (min = 1, max = 48)
List of adapter,address pairs to assume to be present. Autodetection
of the target device will still be attempted. Use one of the more
specific force directives below if this doesn't detect the device.
* force_lm93: short array (min = 1, max = 48)
List of adapter,address pairs which are unquestionably assumed to contain
a 'lm93' chip
* ignore: short array (min = 1, max = 48)
List of adapter,address pairs not to scan
* ignore_range: short array (min = 1, max = 48)
List of adapter,start-addr,end-addr triples not to scan
* probe: short array (min = 1, max = 48)
List of adapter,address pairs to scan additionally
* probe_range: short array (min = 1, max = 48)
List of adapter,start-addr,end-addr triples to scan additionally
Hardware Description
--------------------
(from the datasheet)
The LM93, hardware monitor, has a two wire digital interface compatible with
SMBus 2.0. Using an 8-bit ADC, the LM93 measures the temperature of two remote
diode connected transistors as well as its own die and 16 power supply
voltages. To set fan speed, the LM93 has two PWM outputs that are each
controlled by up to four temperature zones. The fancontrol algorithm is lookup
table based. The LM93 includes a digital filter that can be invoked to smooth
temperature readings for better control of fan speed. The LM93 has four
tachometer inputs to measure fan speed. Limit and status registers for all
measured values are included. The LM93 builds upon the functionality of
previous motherboard management ASICs and uses some of the LM85 s features
(i.e. smart tachometer mode). It also adds measurement and control support
for dynamic Vccp monitoring and PROCHOT. It is designed to monitor a dual
processor Xeon class motherboard with a minimum of external components.
Driver Description
------------------
This driver implements support for the National Semiconductor LM93.
User Interface
--------------
#PROCHOT:
The LM93 can monitor two #PROCHOT signals. The results are found in the
sysfs files prochot1, prochot2, prochot1_avg, prochot2_avg, prochot1_max,
and prochot2_max. prochot1_max and prochot2_max contain the user limits
for #PROCHOT1 and #PROCHOT2, respectively. prochot1 and prochot2 contain
the current readings for the most recent complete time interval. The
value of prochot1_avg and prochot2_avg is something like a 2 period
exponential moving average (but not quite - check the datasheet). Note
that this third value is calculated by the chip itself. All values range
from 0-255 where 0 indicates no throttling, and 255 indicates > 99.6%.
The monitoring intervals for the two #PROCHOT signals is also configurable.
These intervals can be found in the sysfs files prochot1_interval and
prochot2_interval. The values in these files specify the intervals for
#P1_PROCHOT and #P2_PROCHOT, respectively. Selecting a value not in this
list will cause the driver to use the next largest interval. The available
intervals are:
#PROCHOT intervals: 0.73, 1.46, 2.9, 5.8, 11.7, 23.3, 46.6, 93.2, 186, 372
It is possible to configure the LM93 to logically short the two #PROCHOT
signals. I.e. when #P1_PROCHOT is asserted, the LM93 will automatically
assert #P2_PROCHOT, and vice-versa. This mode is enabled by writing a
non-zero integer to the sysfs file prochot_short.
The LM93 can also override the #PROCHOT pins by driving a PWM signal onto
one or both of them. When overridden, the signal has a period of 3.56 mS,
a minimum pulse width of 5 clocks (at 22.5kHz => 6.25% duty cycle), and
a maximum pulse width of 80 clocks (at 22.5kHz => 99.88% duty cycle).
The sysfs files prochot1_override and prochot2_override contain boolean
intgers which enable or disable the override function for #P1_PROCHOT and
#P2_PROCHOT, respectively. The sysfs file prochot_override_duty_cycle
contains a value controlling the duty cycle for the PWM signal used when
the override function is enabled. This value ranges from 0 to 15, with 0
indicating minimum duty cycle and 15 indicating maximum.
#VRD_HOT:
The LM93 can monitor two #VRD_HOT signals. The results are found in the
sysfs files vrdhot1 and vrdhot2. There is one value per file: a boolean for
which 1 indicates #VRD_HOT is asserted and 0 indicates it is negated. These
files are read-only.
Smart Tach Mode:
(from the datasheet)
If a fan is driven using a low-side drive PWM, the tachometer
output of the fan is corrupted. The LM93 includes smart tachometer
circuitry that allows an accurate tachometer reading to be
achieved despite the signal corruption. In smart tach mode all
four signals are measured within 4 seconds.
Smart tach mode is enabled by the driver by writing 1 or 2 (associating the
the fan tachometer with a pwm) to the sysfs file fan<n>_smart_tach. A zero
will disable the function for that fan. Note that Smart tach mode cannot be
enabled if the PWM output frequency is 22500 Hz (see below).
Manual PWM:
The LM93 has a fixed or override mode for the two PWM outputs (although, there
are still some conditions that will override even this mode - see section
15.10.6 of the datasheet for details.) The sysfs files pwm1_override
and pwm2_override are used to enable this mode; each is a boolean integer
where 0 disables and 1 enables the manual control mode. The sysfs files pwm1
and pwm2 are used to set the manual duty cycle; each is an integer (0-255)
where 0 is 0% duty cycle, and 255 is 100%. Note that the duty cycle values
are constrained by the hardware. Selecting a value which is not available
will cause the driver to use the next largest value. Also note: when manual
PWM mode is disabled, the value of pwm1 and pwm2 indicates the current duty
cycle chosen by the h/w.
PWM Output Frequency:
The LM93 supports several different frequencies for the PWM output channels.
The sysfs files pwm1_freq and pwm2_freq are used to select the frequency. The
frequency values are constrained by the hardware. Selecting a value which is
not available will cause the driver to use the next largest value. Also note
that this parameter has implications for the Smart Tach Mode (see above).
PWM Output Frequencies: 12, 36, 48, 60, 72, 84, 96, 22500 (h/w default)
Automatic PWM:
The LM93 is capable of complex automatic fan control, with many different
points of configuration. To start, each PWM output can be bound to any
combination of eight control sources. The final PWM is the largest of all
individual control sources to which the PWM output is bound.
The eight control sources are: temp1-temp4 (aka "zones" in the datasheet),
#PROCHOT 1 & 2, and #VRDHOT 1 & 2. The bindings are expressed as a bitmask
in the sysfs files pwm<n>_auto_channels, where a "1" enables the binding, and
a "0" disables it. The h/w default is 0x0f (all temperatures bound).
0x01 - Temp 1
0x02 - Temp 2
0x04 - Temp 3
0x08 - Temp 4
0x10 - #PROCHOT 1
0x20 - #PROCHOT 2
0x40 - #VRDHOT 1
0x80 - #VRDHOT 2
The function y = f(x) takes a source temperature x to a PWM output y. This
function of the LM93 is derived from a base temperature and a table of 12
temperature offsets. The base temperature is expressed in degrees C in the
sysfs files temp<n>_auto_base. The offsets are expressed in cumulative
degrees C, with the value of offset <i> for temperature value <n> being
contained in the file temp<n>_auto_offset<i>. E.g. if the base temperature
is 40C:
offset # temp<n>_auto_offset<i> range pwm
1 0 - 25.00%
2 0 - 28.57%
3 1 40C - 41C 32.14%
4 1 41C - 42C 35.71%
5 2 42C - 44C 39.29%
6 2 44C - 46C 42.86%
7 2 48C - 50C 46.43%
8 2 50C - 52C 50.00%
9 2 52C - 54C 53.57%
10 2 54C - 56C 57.14%
11 2 56C - 58C 71.43%
12 2 58C - 60C 85.71%
> 60C 100.00%
Valid offsets are in the range 0C <= x <= 7.5C in 0.5C increments.
There is an independent base temperature for each temperature channel. Note,
however, there are only two tables of offsets: one each for temp[12] and
temp[34]. Therefore, any change to e.g. temp1_auto_offset<i> will also
affect temp2_auto_offset<i>.
The LM93 can also apply hysteresis to the offset table, to prevent unwanted
oscillation between two steps in the offsets table. These values are found in
the sysfs files temp<n>_auto_offset_hyst. The value in this file has the
same representation as in temp<n>_auto_offset<i>.
If a temperature reading falls below the base value for that channel, the LM93
will use the minimum PWM value. These values are found in the sysfs files
temp<n>_auto_pwm_min. Note, there are only two minimums: one each for temp[12]
and temp[34]. Therefore, any change to e.g. temp1_auto_pwm_min will also
affect temp2_auto_pwm_min.
PWM Spin-Up Cycle:
A spin-up cycle occurs when a PWM output is commanded from 0% duty cycle to
some value > 0%. The LM93 supports a minimum duty cycle during spin-up. These
values are found in the sysfs files pwm<n>_auto_spinup_min. The value in this
file has the same representation as other PWM duty cycle values. The
duration of the spin-up cycle is also configurable. These values are found in
the sysfs files pwm<n>_auto_spinup_time. The value in this file is
the spin-up time in seconds. The available spin-up times are constrained by
the hardware. Selecting a value which is not available will cause the driver
to use the next largest value.
Spin-up Durations: 0 (disabled, h/w default), 0.1, 0.25, 0.4, 0.7, 1.0,
2.0, 4.0
#PROCHOT and #VRDHOT PWM Ramping:
If the #PROCHOT or #VRDHOT signals are asserted while bound to a PWM output
channel, the LM93 will ramp the PWM output up to 100% duty cycle in discrete
steps. The duration of each step is configurable. There are two files, with
one value each in seconds: pwm_auto_prochot_ramp and pwm_auto_vrdhot_ramp.
The available ramp times are constrained by the hardware. Selecting a value
which is not available will cause the driver to use the next largest value.
Ramp Times: 0 (disabled, h/w default) to 0.75 in 0.05 second intervals
Fan Boost:
For each temperature channel, there is a boost temperature: if the channel
exceeds this limit, the LM93 will immediately drive both PWM outputs to 100%.
This limit is expressed in degrees C in the sysfs files temp<n>_auto_boost.
There is also a hysteresis temperature for this function: after the boost
limit is reached, the temperature channel must drop below this value before
the boost function is disabled. This temperature is also expressed in degrees
C in the sysfs files temp<n>_auto_boost_hyst.
GPIO Pins:
The LM93 can monitor the logic level of four dedicated GPIO pins as well as the
four tach input pins. GPIO0-GPIO3 correspond to (fan) tach 1-4, respectively.
All eight GPIOs are read by reading the bitmask in the sysfs file gpio. The
LSB is GPIO0, and the MSB is GPIO7.
LM93 Unique sysfs Files
-----------------------
file description
-------------------------------------------------------------
prochot<n> current #PROCHOT %
prochot<n>_avg moving average #PROCHOT %
prochot<n>_max limit #PROCHOT %
prochot_short enable or disable logical #PROCHOT pin short
prochot<n>_override force #PROCHOT assertion as PWM
prochot_override_duty_cycle
duty cycle for the PWM signal used when
#PROCHOT is overridden
prochot<n>_interval #PROCHOT PWM sampling interval
vrdhot<n> 0 means negated, 1 means asserted
fan<n>_smart_tach enable or disable smart tach mode
pwm<n>_auto_channels select control sources for PWM outputs
pwm<n>_auto_spinup_min minimum duty cycle during spin-up
pwm<n>_auto_spinup_time duration of spin-up
pwm_auto_prochot_ramp ramp time per step when #PROCHOT asserted
pwm_auto_vrdhot_ramp ramp time per step when #VRDHOT asserted
temp<n>_auto_base temperature channel base
temp<n>_auto_offset[1-12]
temperature channel offsets
temp<n>_auto_offset_hyst
temperature channel offset hysteresis
temp<n>_auto_boost temperature channel boost (PWMs to 100%) limit
temp<n>_auto_boost_hyst temperature channel boost hysteresis
gpio input state of 8 GPIO pins; read-only
Sample Configuration File
-------------------------
Here is a sample LM93 chip config for sensors.conf:
---------- cut here ----------
chip "lm93-*"
# VOLTAGE INPUTS
# labels and scaling based on datasheet recommendations
label in1 "+12V1"
compute in1 @ * 12.945, @ / 12.945
set in1_min 12 * 0.90
set in1_max 12 * 1.10
label in2 "+12V2"
compute in2 @ * 12.945, @ / 12.945
set in2_min 12 * 0.90
set in2_max 12 * 1.10
label in3 "+12V3"
compute in3 @ * 12.945, @ / 12.945
set in3_min 12 * 0.90
set in3_max 12 * 1.10
label in4 "FSB_Vtt"
label in5 "3GIO"
label in6 "ICH_Core"
label in7 "Vccp1"
label in8 "Vccp2"
label in9 "+3.3V"
set in9_min 3.3 * 0.90
set in9_max 3.3 * 1.10
label in10 "+5V"
set in10_min 5.0 * 0.90
set in10_max 5.0 * 1.10
label in11 "SCSI_Core"
label in12 "Mem_Core"
label in13 "Mem_Vtt"
label in14 "Gbit_Core"
# Assuming R1/R2 = 4.1143, and 3.3V reference
# -12V = (4.1143 + 1) * (@ - 3.3) + 3.3
label in15 "-12V"
compute in15 @ * 5.1143 - 13.57719, (@ + 13.57719) / 5.1143
set in15_min -12 * 0.90
set in15_max -12 * 1.10
label in16 "+3.3VSB"
set in16_min 3.3 * 0.90
set in16_max 3.3 * 1.10
# TEMPERATURE INPUTS
label temp1 "CPU1"
label temp2 "CPU2"
label temp3 "LM93"
# TACHOMETER INPUTS
label fan1 "Fan1"
set fan1_min 3000
label fan2 "Fan2"
set fan2_min 3000
label fan3 "Fan3"
set fan3_min 3000
label fan4 "Fan4"
set fan4_min 3000
# PWM OUTPUTS
label pwm1 "CPU1"
label pwm2 "CPU2"
drivers/hwmon/Kconfig
View file @ e46957ed
...@@ -399,6 +399,17 @@ config SENSORS_LM92 ...@@ -399,6 +399,17 @@ config SENSORS_LM92
This driver can also be built as a module. If so, the module This driver can also be built as a module. If so, the module
will be called lm92. will be called lm92.
config SENSORS_LM93
tristate "National Semiconductor LM93 and compatibles"
depends on HWMON && I2C
select HWMON_VID
help
If you say yes here you get support for National Semiconductor LM93
sensor chips.
This driver can also be built as a module. If so, the module
will be called lm93.
config SENSORS_MAX1619 config SENSORS_MAX1619
tristate "Maxim MAX1619 sensor chip" tristate "Maxim MAX1619 sensor chip"
depends on I2C depends on I2C
......
drivers/hwmon/Makefile
View file @ e46957ed
...@@ -47,6 +47,7 @@ obj-$(CONFIG_SENSORS_LM85) += lm85.o ...@@ -47,6 +47,7 @@ obj-$(CONFIG_SENSORS_LM85) += lm85.o
obj-$(CONFIG_SENSORS_LM87) += lm87.o obj-$(CONFIG_SENSORS_LM87) += lm87.o
obj-$(CONFIG_SENSORS_LM90) += lm90.o obj-$(CONFIG_SENSORS_LM90) += lm90.o
obj-$(CONFIG_SENSORS_LM92) += lm92.o obj-$(CONFIG_SENSORS_LM92) += lm92.o
obj-$(CONFIG_SENSORS_LM93) += lm93.o
obj-$(CONFIG_SENSORS_MAX1619) += max1619.o obj-$(CONFIG_SENSORS_MAX1619) += max1619.o
obj-$(CONFIG_SENSORS_MAX6650) += max6650.o obj-$(CONFIG_SENSORS_MAX6650) += max6650.o
obj-$(CONFIG_SENSORS_PC87360) += pc87360.o obj-$(CONFIG_SENSORS_PC87360) += pc87360.o
......
drivers/hwmon/lm93.c 0 → 100644
View file @ e46957ed
/*
lm93.c - Part of lm_sensors, Linux kernel modules for hardware monitoring
Author/Maintainer: Mark M. Hoffman <mhoffman@lightlink.com>
Copyright (c) 2004 Utilitek Systems, Inc.
derived in part from lm78.c:
Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
derived in part from lm85.c:
Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
Copyright (c) 2003 Margit Schubert-While <margitsw@t-online.de>
derived in part from w83l785ts.c:
Copyright (c) 2003-2004 Jean Delvare <khali@linux-fr.org>
Ported to Linux 2.6 by Eric J. Bowersox <ericb@aspsys.com>
Copyright (c) 2005 Aspen Systems, Inc.
Adapted to 2.6.20 by Carsten Emde <cbe@osadl.org>
Copyright (c) 2006 Carsten Emde, Open Source Automation Development Lab
Modified for mainline integration by Hans J. Koch <hjk@linutronix.de>
Copyright (c) 2007 Hans J. Koch, Linutronix GmbH
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/hwmon-vid.h>
#include <linux/err.h>
#include <linux/delay.h>
/* LM93 REGISTER ADDRESSES */
/* miscellaneous */
#define LM93_REG_MFR_ID 0x3e
#define LM93_REG_VER 0x3f
#define LM93_REG_STATUS_CONTROL 0xe2
#define LM93_REG_CONFIG 0xe3
#define LM93_REG_SLEEP_CONTROL 0xe4
/* alarm values start here */
#define LM93_REG_HOST_ERROR_1 0x48
/* voltage inputs: in1-in16 (nr => 0-15) */
#define LM93_REG_IN(nr) (0x56 + (nr))
#define LM93_REG_IN_MIN(nr) (0x90 + (nr) * 2)
#define LM93_REG_IN_MAX(nr) (0x91 + (nr) * 2)
/* temperature inputs: temp1-temp4 (nr => 0-3) */
#define LM93_REG_TEMP(nr) (0x50 + (nr))
#define LM93_REG_TEMP_MIN(nr) (0x78 + (nr) * 2)
#define LM93_REG_TEMP_MAX(nr) (0x79 + (nr) * 2)
/* temp[1-4]_auto_boost (nr => 0-3) */
#define LM93_REG_BOOST(nr) (0x80 + (nr))
/* #PROCHOT inputs: prochot1-prochot2 (nr => 0-1) */
#define LM93_REG_PROCHOT_CUR(nr) (0x67 + (nr) * 2)
#define LM93_REG_PROCHOT_AVG(nr) (0x68 + (nr) * 2)
#define LM93_REG_PROCHOT_MAX(nr) (0xb0 + (nr))
/* fan tach inputs: fan1-fan4 (nr => 0-3) */
#define LM93_REG_FAN(nr) (0x6e + (nr) * 2)
#define LM93_REG_FAN_MIN(nr) (0xb4 + (nr) * 2)
/* pwm outputs: pwm1-pwm2 (nr => 0-1, reg => 0-3) */
#define LM93_REG_PWM_CTL(nr,reg) (0xc8 + (reg) + (nr) * 4)
#define LM93_PWM_CTL1 0x0
#define LM93_PWM_CTL2 0x1
#define LM93_PWM_CTL3 0x2
#define LM93_PWM_CTL4 0x3
/* GPIO input state */
#define LM93_REG_GPI 0x6b
/* vid inputs: vid1-vid2 (nr => 0-1) */
#define LM93_REG_VID(nr) (0x6c + (nr))
/* vccp1 & vccp2: VID relative inputs (nr => 0-1) */
#define LM93_REG_VCCP_LIMIT_OFF(nr) (0xb2 + (nr))
/* temp[1-4]_auto_boost_hyst */
#define LM93_REG_BOOST_HYST_12 0xc0
#define LM93_REG_BOOST_HYST_34 0xc1
#define LM93_REG_BOOST_HYST(nr) (0xc0 + (nr)/2)
/* temp[1-4]_auto_pwm_[min|hyst] */
#define LM93_REG_PWM_MIN_HYST_12 0xc3
#define LM93_REG_PWM_MIN_HYST_34 0xc4
#define LM93_REG_PWM_MIN_HYST(nr) (0xc3 + (nr)/2)
/* prochot_override & prochot_interval */
#define LM93_REG_PROCHOT_OVERRIDE 0xc6
#define LM93_REG_PROCHOT_INTERVAL 0xc7
/* temp[1-4]_auto_base (nr => 0-3) */
#define LM93_REG_TEMP_BASE(nr) (0xd0 + (nr))
/* temp[1-4]_auto_offsets (step => 0-11) */
#define LM93_REG_TEMP_OFFSET(step) (0xd4 + (step))
/* #PROCHOT & #VRDHOT PWM ramp control */
#define LM93_REG_PWM_RAMP_CTL 0xbf
/* miscellaneous */
#define LM93_REG_SFC1 0xbc
#define LM93_REG_SFC2 0xbd
#define LM93_REG_GPI_VID_CTL 0xbe
#define LM93_REG_SF_TACH_TO_PWM 0xe0
/* error masks */
#define LM93_REG_GPI_ERR_MASK 0xec
#define LM93_REG_MISC_ERR_MASK 0xed
/* LM93 REGISTER VALUES */
#define LM93_MFR_ID 0x73
#define LM93_MFR_ID_PROTOTYPE 0x72
/* SMBus capabilities */
#define LM93_SMBUS_FUNC_FULL (I2C_FUNC_SMBUS_BYTE_DATA | \
I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_BLOCK_DATA)
#define LM93_SMBUS_FUNC_MIN (I2C_FUNC_SMBUS_BYTE_DATA | \
I2C_FUNC_SMBUS_WORD_DATA)
/* Addresses to scan */
static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
/* Insmod parameters */
I2C_CLIENT_INSMOD_1(lm93);
static int disable_block;
module_param(disable_block, bool, 0);
MODULE_PARM_DESC(disable_block,
"Set to non-zero to disable SMBus block data transactions.");
static int init;
module_param(init, bool, 0);
MODULE_PARM_DESC(init, "Set to non-zero to force chip initialization.");
static int vccp_limit_type[2] = {0,0};
module_param_array(vccp_limit_type, int, NULL, 0);
MODULE_PARM_DESC(vccp_limit_type, "Configures in7 and in8 limit modes.");
static int vid_agtl;
module_param(vid_agtl, int, 0);
MODULE_PARM_DESC(vid_agtl, "Configures VID pin input thresholds.");
/* Driver data */
static struct i2c_driver lm93_driver;
/* LM93 BLOCK READ COMMANDS */
static const struct { u8 cmd; u8 len; } lm93_block_read_cmds[12] = {
{ 0xf2, 8 },
{ 0xf3, 8 },
{ 0xf4, 6 },
{ 0xf5, 16 },
{ 0xf6, 4 },
{ 0xf7, 8 },
{ 0xf8, 12 },
{ 0xf9, 32 },
{ 0xfa, 8 },
{ 0xfb, 8 },
{ 0xfc, 16 },
{ 0xfd, 9 },
};
/* ALARMS: SYSCTL format described further below
REG: 64 bits in 8 registers, as immediately below */
struct block1_t {
u8 host_status_1;
u8 host_status_2;
u8 host_status_3;
u8 host_status_4;
u8 p1_prochot_status;
u8 p2_prochot_status;
u8 gpi_status;
u8 fan_status;
};
/*
* Client-specific data
*/
struct lm93_data {
struct i2c_client client;
struct class_device *class_dev;
struct mutex update_lock;
unsigned long last_updated; /* In jiffies */
/* client update function */
void (*update)(struct lm93_data *, struct i2c_client *);
char valid; /* !=0 if following fields are valid */
/* register values, arranged by block read groups */
struct block1_t block1;
/* temp1 - temp4: unfiltered readings
temp1 - temp2: filtered readings */
u8 block2[6];
/* vin1 - vin16: readings */
u8 block3[16];
/* prochot1 - prochot2: readings */
struct {
u8 cur;
u8 avg;
} block4[2];
/* fan counts 1-4 => 14-bits, LE, *left* justified */
u16 block5[4];
/* block6 has a lot of data we don't need */
struct {
u8 min;
u8 max;
} temp_lim[3];
/* vin1 - vin16: low and high limits */
struct {
u8 min;
u8 max;
} block7[16];
/* fan count limits 1-4 => same format as block5 */
u16 block8[4];
/* pwm control registers (2 pwms, 4 regs) */
u8 block9[2][4];
/* auto/pwm base temp and offset temp registers */
struct {
u8 base[4];
u8 offset[12];
} block10;
/* master config register */
u8 config;
/* VID1 & VID2 => register format, 6-bits, right justified */
u8 vid[2];
/* prochot1 - prochot2: limits */
u8 prochot_max[2];
/* vccp1 & vccp2 (in7 & in8): VID relative limits (register format) */
u8 vccp_limits[2];
/* GPIO input state (register format, i.e. inverted) */
u8 gpi;
/* #PROCHOT override (register format) */
u8 prochot_override;
/* #PROCHOT intervals (register format) */
u8 prochot_interval;
/* Fan Boost Temperatures (register format) */
u8 boost[4];
/* Fan Boost Hysteresis (register format) */
u8 boost_hyst[2];
/* Temperature Zone Min. PWM & Hysteresis (register format) */
u8 auto_pwm_min_hyst[2];
/* #PROCHOT & #VRDHOT PWM Ramp Control */
u8 pwm_ramp_ctl;
/* miscellaneous setup regs */
u8 sfc1;
u8 sfc2;
u8 sf_tach_to_pwm;
/* The two PWM CTL2 registers can read something other than what was
last written for the OVR_DC field (duty cycle override). So, we
save the user-commanded value here. */
u8 pwm_override[2];
};
/* VID: mV
REG: 6-bits, right justified, *always* using Intel VRM/VRD 10 */
static int LM93_VID_FROM_REG(u8 reg)
{
return vid_from_reg((reg & 0x3f), 100);
}
/* min, max, and nominal register values, per channel (u8) */
static const u8 lm93_vin_reg_min[16] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xae,
};
static const u8 lm93_vin_reg_max[16] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xfa, 0xff, 0xff, 0xff, 0xff, 0xff, 0xd1,
};
/* Values from the datasheet. They're here for documentation only.
static const u8 lm93_vin_reg_nom[16] = {
0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0,
0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x40, 0xc0,
};
*/
/* min, max, and nominal voltage readings, per channel (mV)*/
static const unsigned long lm93_vin_val_min[16] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 3000,
};
static const unsigned long lm93_vin_val_max[16] = {
1236, 1236, 1236, 1600, 2000, 2000, 1600, 1600,
4400, 6500, 3333, 2625, 1312, 1312, 1236, 3600,
};
/* Values from the datasheet. They're here for documentation only.
static const unsigned long lm93_vin_val_nom[16] = {
927, 927, 927, 1200, 1500, 1500, 1200, 1200,
3300, 5000, 2500, 1969, 984, 984, 309, 3300,
};
*/
static unsigned LM93_IN_FROM_REG(int nr, u8 reg)
{
const long uV_max = lm93_vin_val_max[nr] * 1000;
const long uV_min = lm93_vin_val_min[nr] * 1000;
const long slope = (uV_max - uV_min) /
(lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]);
const long intercept = uV_min - slope * lm93_vin_reg_min[nr];
return (slope * reg + intercept + 500) / 1000;
}
/* IN: mV, limits determined by channel nr
REG: scaling determined by channel nr */
static u8 LM93_IN_TO_REG(int nr, unsigned val)
{
/* range limit */
const long mV = SENSORS_LIMIT(val,
lm93_vin_val_min[nr], lm93_vin_val_max[nr]);
/* try not to lose too much precision here */
const long uV = mV * 1000;
const long uV_max = lm93_vin_val_max[nr] * 1000;
const long uV_min = lm93_vin_val_min[nr] * 1000;
/* convert */
const long slope = (uV_max - uV_min) /
(lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]);
const long intercept = uV_min - slope * lm93_vin_reg_min[nr];
u8 result = ((uV - intercept + (slope/2)) / slope);
result = SENSORS_LIMIT(result,
lm93_vin_reg_min[nr], lm93_vin_reg_max[nr]);
return result;
}
/* vid in mV, upper == 0 indicates low limit, otherwise upper limit */
static unsigned LM93_IN_REL_FROM_REG(u8 reg, int upper, int vid)
{
const long uV_offset = upper ? (((reg >> 4 & 0x0f) + 1) * 12500) :
(((reg >> 0 & 0x0f) + 1) * -25000);
const long uV_vid = vid * 1000;
return (uV_vid + uV_offset + 5000) / 10000;
}
#define LM93_IN_MIN_FROM_REG(reg,vid) LM93_IN_REL_FROM_REG(reg,0,vid)
#define LM93_IN_MAX_FROM_REG(reg,vid) LM93_IN_REL_FROM_REG(reg,1,vid)
/* vid in mV , upper == 0 indicates low limit, otherwise upper limit
upper also determines which nibble of the register is returned
(the other nibble will be 0x0) */
static u8 LM93_IN_REL_TO_REG(unsigned val, int upper, int vid)
{
long uV_offset = vid * 1000 - val * 10000;
if (upper) {
uV_offset = SENSORS_LIMIT(uV_offset, 12500, 200000);
return (u8)((uV_offset / 12500 - 1) << 4);
} else {
uV_offset = SENSORS_LIMIT(uV_offset, -400000, -25000);
return (u8)((uV_offset / -25000 - 1) << 0);
}
}
/* TEMP: 1/1000 degrees C (-128C to +127C)
REG: 1C/bit, two's complement */
static int LM93_TEMP_FROM_REG(u8 reg)
{
return (s8)reg * 1000;
}
#define LM93_TEMP_MIN (-128000)
#define LM93_TEMP_MAX ( 127000)
/* TEMP: 1/1000 degrees C (-128C to +127C)
REG: 1C/bit, two's complement */
static u8 LM93_TEMP_TO_REG(int temp)
{
int ntemp = SENSORS_LIMIT(temp, LM93_TEMP_MIN, LM93_TEMP_MAX);
ntemp += (ntemp<0 ? -500 : 500);
return (u8)(ntemp / 1000);
}
/* Determine 4-bit temperature offset resolution */
static int LM93_TEMP_OFFSET_MODE_FROM_REG(u8 sfc2, int nr)
{
/* mode: 0 => 1C/bit, nonzero => 0.5C/bit */
return sfc2 & (nr < 2 ? 0x10 : 0x20);
}
/* This function is common to all 4-bit temperature offsets
reg is 4 bits right justified
mode 0 => 1C/bit, mode !0 => 0.5C/bit */
static int LM93_TEMP_OFFSET_FROM_REG(u8 reg, int mode)
{
return (reg & 0x0f) * (mode ? 5 : 10);
}
#define LM93_TEMP_OFFSET_MIN ( 0)
#define LM93_TEMP_OFFSET_MAX0 (150)
#define LM93_TEMP_OFFSET_MAX1 ( 75)
/* This function is common to all 4-bit temperature offsets
returns 4 bits right justified
mode 0 => 1C/bit, mode !0 => 0.5C/bit */
static u8 LM93_TEMP_OFFSET_TO_REG(int off, int mode)
{
int factor = mode ? 5 : 10;
off = SENSORS_LIMIT(off, LM93_TEMP_OFFSET_MIN,
mode ? LM93_TEMP_OFFSET_MAX1 : LM93_TEMP_OFFSET_MAX0);
return (u8)((off + factor/2) / factor);
}
/* 0 <= nr <= 3 */
static int LM93_TEMP_AUTO_OFFSET_FROM_REG(u8 reg, int nr, int mode)
{
/* temp1-temp2 (nr=0,1) use lower nibble */
if (nr < 2)
return LM93_TEMP_OFFSET_FROM_REG(reg & 0x0f, mode);
/* temp3-temp4 (nr=2,3) use upper nibble */
else
return LM93_TEMP_OFFSET_FROM_REG(reg >> 4 & 0x0f, mode);
}
/* TEMP: 1/10 degrees C (0C to +15C (mode 0) or +7.5C (mode non-zero))
REG: 1.0C/bit (mode 0) or 0.5C/bit (mode non-zero)
0 <= nr <= 3 */
static u8 LM93_TEMP_AUTO_OFFSET_TO_REG(u8 old, int off, int nr, int mode)
{
u8 new = LM93_TEMP_OFFSET_TO_REG(off, mode);
/* temp1-temp2 (nr=0,1) use lower nibble */
if (nr < 2)
return (old & 0xf0) | (new & 0x0f);
/* temp3-temp4 (nr=2,3) use upper nibble */
else
return (new << 4 & 0xf0) | (old & 0x0f);
}
static int LM93_AUTO_BOOST_HYST_FROM_REGS(struct lm93_data *data, int nr,
int mode)
{
u8 reg;
switch (nr) {
case 0:
reg = data->boost_hyst[0] & 0x0f;
break;
case 1:
reg = data->boost_hyst[0] >> 4 & 0x0f;
break;
case 2:
reg = data->boost_hyst[1] & 0x0f;
break;
case 3:
default:
reg = data->boost_hyst[1] >> 4 & 0x0f;
break;
}
return LM93_TEMP_FROM_REG(data->boost[nr]) -
LM93_TEMP_OFFSET_FROM_REG(reg, mode);
}
static u8 LM93_AUTO_BOOST_HYST_TO_REG(struct lm93_data *data, long hyst,
int nr, int mode)
{
u8 reg = LM93_TEMP_OFFSET_TO_REG(
(LM93_TEMP_FROM_REG(data->boost[nr]) - hyst), mode);
switch (nr) {
case 0:
reg = (data->boost_hyst[0] & 0xf0) | (reg & 0x0f);
break;
case 1:
reg = (reg << 4 & 0xf0) | (data->boost_hyst[0] & 0x0f);
break;
case 2:
reg = (data->boost_hyst[1] & 0xf0) | (reg & 0x0f);
break;
case 3:
default:
reg = (reg << 4 & 0xf0) | (data->boost_hyst[1] & 0x0f);
break;
}
return reg;
}
/* PWM: 0-255 per sensors documentation
REG: 0-13 as mapped below... right justified */
typedef enum { LM93_PWM_MAP_HI_FREQ, LM93_PWM_MAP_LO_FREQ } pwm_freq_t;
static int lm93_pwm_map[2][16] = {
{
0x00, /* 0.00% */ 0x40, /* 25.00% */
0x50, /* 31.25% */ 0x60, /* 37.50% */
0x70, /* 43.75% */ 0x80, /* 50.00% */
0x90, /* 56.25% */ 0xa0, /* 62.50% */
0xb0, /* 68.75% */ 0xc0, /* 75.00% */
0xd0, /* 81.25% */ 0xe0, /* 87.50% */
0xf0, /* 93.75% */ 0xff, /* 100.00% */
0xff, 0xff, /* 14, 15 are reserved and should never occur */
},
{
0x00, /* 0.00% */ 0x40, /* 25.00% */
0x49, /* 28.57% */ 0x52, /* 32.14% */
0x5b, /* 35.71% */ 0x64, /* 39.29% */
0x6d, /* 42.86% */ 0x76, /* 46.43% */
0x80, /* 50.00% */ 0x89, /* 53.57% */
0x92, /* 57.14% */ 0xb6, /* 71.43% */
0xdb, /* 85.71% */ 0xff, /* 100.00% */
0xff, 0xff, /* 14, 15 are reserved and should never occur */
},
};
static int LM93_PWM_FROM_REG(u8 reg, pwm_freq_t freq)
{
return lm93_pwm_map[freq][reg & 0x0f];
}
/* round up to nearest match */
static u8 LM93_PWM_TO_REG(int pwm, pwm_freq_t freq)
{
int i;
for (i = 0; i < 13; i++)
if (pwm <= lm93_pwm_map[freq][i])
break;
/* can fall through with i==13 */
return (u8)i;
}
static int LM93_FAN_FROM_REG(u16 regs)
{
const u16 count = le16_to_cpu(regs) >> 2;
return count==0 ? -1 : count==0x3fff ? 0: 1350000 / count;
}
/*
* RPM: (82.5 to 1350000)
* REG: 14-bits, LE, *left* justified
*/
static u16 LM93_FAN_TO_REG(long rpm)
{
u16 count, regs;
if (rpm == 0) {
count = 0x3fff;
} else {
rpm = SENSORS_LIMIT(rpm, 1, 1000000);
count = SENSORS_LIMIT((1350000 + rpm) / rpm, 1, 0x3ffe);
}
regs = count << 2;
return cpu_to_le16(regs);
}
/* PWM FREQ: HZ
REG: 0-7 as mapped below */
static int lm93_pwm_freq_map[8] = {
22500, 96, 84, 72, 60, 48, 36, 12
};
static int LM93_PWM_FREQ_FROM_REG(u8 reg)
{
return lm93_pwm_freq_map[reg & 0x07];
}
/* round up to nearest match */
static u8 LM93_PWM_FREQ_TO_REG(int freq)
{
int i;
for (i = 7; i > 0; i--)
if (freq <= lm93_pwm_freq_map[i])
break;
/* can fall through with i==0 */
return (u8)i;
}
/* TIME: 1/100 seconds
* REG: 0-7 as mapped below */
static int lm93_spinup_time_map[8] = {
0, 10, 25, 40, 70, 100, 200, 400,
};
static int LM93_SPINUP_TIME_FROM_REG(u8 reg)
{
return lm93_spinup_time_map[reg >> 5 & 0x07];
}
/* round up to nearest match */
static u8 LM93_SPINUP_TIME_TO_REG(int time)
{
int i;
for (i = 0; i < 7; i++)
if (time <= lm93_spinup_time_map[i])
break;
/* can fall through with i==8 */
return (u8)i;
}
#define LM93_RAMP_MIN 0
#define LM93_RAMP_MAX 75
static int LM93_RAMP_FROM_REG(u8 reg)
{
return (reg & 0x0f) * 5;
}
/* RAMP: 1/100 seconds
REG: 50mS/bit 4-bits right justified */
static u8 LM93_RAMP_TO_REG(int ramp)
{
ramp = SENSORS_LIMIT(ramp, LM93_RAMP_MIN, LM93_RAMP_MAX);
return (u8)((ramp + 2) / 5);
}
/* PROCHOT: 0-255, 0 => 0%, 255 => > 96.6%
* REG: (same) */
static u8 LM93_PROCHOT_TO_REG(long prochot)
{
prochot = SENSORS_LIMIT(prochot, 0, 255);
return (u8)prochot;
}
/* PROCHOT-INTERVAL: 73 - 37200 (1/100 seconds)
* REG: 0-9 as mapped below */
static int lm93_interval_map[10] = {
73, 146, 290, 580, 1170, 2330, 4660, 9320, 18600, 37200,
};
static int LM93_INTERVAL_FROM_REG(u8 reg)
{
return lm93_interval_map[reg & 0x0f];
}
/* round up to nearest match */
static u8 LM93_INTERVAL_TO_REG(long interval)
{
int i;
for (i = 0; i < 9; i++)
if (interval <= lm93_interval_map[i])
break;
/* can fall through with i==9 */
return (u8)i;
}
/* GPIO: 0-255, GPIO0 is LSB
* REG: inverted */
static unsigned LM93_GPI_FROM_REG(u8 reg)
{
return ~reg & 0xff;
}
/* alarm bitmask definitions
The LM93 has nearly 64 bits of error status... I've pared that down to
what I think is a useful subset in order to fit it into 32 bits.
Especially note that the #VRD_HOT alarms are missing because we provide
that information as values in another sysfs file.
If libsensors is extended to support 64 bit values, this could be revisited.
*/
#define LM93_ALARM_IN1 0x00000001
#define LM93_ALARM_IN2 0x00000002
#define LM93_ALARM_IN3 0x00000004
#define LM93_ALARM_IN4 0x00000008
#define LM93_ALARM_IN5 0x00000010
#define LM93_ALARM_IN6 0x00000020
#define LM93_ALARM_IN7 0x00000040
#define LM93_ALARM_IN8 0x00000080
#define LM93_ALARM_IN9 0x00000100
#define LM93_ALARM_IN10 0x00000200
#define LM93_ALARM_IN11 0x00000400
#define LM93_ALARM_IN12 0x00000800
#define LM93_ALARM_IN13 0x00001000
#define LM93_ALARM_IN14 0x00002000
#define LM93_ALARM_IN15 0x00004000
#define LM93_ALARM_IN16 0x00008000
#define LM93_ALARM_FAN1 0x00010000
#define LM93_ALARM_FAN2 0x00020000
#define LM93_ALARM_FAN3 0x00040000
#define LM93_ALARM_FAN4 0x00080000
#define LM93_ALARM_PH1_ERR 0x00100000
#define LM93_ALARM_PH2_ERR 0x00200000
#define LM93_ALARM_SCSI1_ERR 0x00400000
#define LM93_ALARM_SCSI2_ERR 0x00800000
#define LM93_ALARM_DVDDP1_ERR 0x01000000
#define LM93_ALARM_DVDDP2_ERR 0x02000000
#define LM93_ALARM_D1_ERR 0x04000000
#define LM93_ALARM_D2_ERR 0x08000000
#define LM93_ALARM_TEMP1 0x10000000
#define LM93_ALARM_TEMP2 0x20000000
#define LM93_ALARM_TEMP3 0x40000000
static unsigned LM93_ALARMS_FROM_REG(struct block1_t b1)
{
unsigned result;
result = b1.host_status_2 & 0x3f;
if (vccp_limit_type[0])
result |= (b1.host_status_4 & 0x10) << 2;
else
result |= b1.host_status_2 & 0x40;
if (vccp_limit_type[1])
result |= (b1.host_status_4 & 0x20) << 2;
else
result |= b1.host_status_2 & 0x80;
result |= b1.host_status_3 << 8;
result |= (b1.fan_status & 0x0f) << 16;
result |= (b1.p1_prochot_status & 0x80) << 13;
result |= (b1.p2_prochot_status & 0x80) << 14;
result |= (b1.host_status_4 & 0xfc) << 20;
result |= (b1.host_status_1 & 0x07) << 28;
return result;
}
#define MAX_RETRIES 5
static u8 lm93_read_byte(struct i2c_client *client, u8 reg)
{
int value, i;
/* retry in case of read errors */
for (i=1; i<=MAX_RETRIES; i++) {
if ((value = i2c_smbus_read_byte_data(client, reg)) >= 0) {
return value;
} else {
dev_warn(&client->dev,"lm93: read byte data failed, "
"address 0x%02x.\n", reg);
mdelay(i + 3);
}
}
/* <TODO> what to return in case of error? */
dev_err(&client->dev,"lm93: All read byte retries failed!!\n");
return 0;
}
static int lm93_write_byte(struct i2c_client *client, u8 reg, u8 value)
{
int result;
/* <TODO> how to handle write errors? */
result = i2c_smbus_write_byte_data(client, reg, value);
if (result < 0)
dev_warn(&client->dev,"lm93: write byte data failed, "
"0x%02x at address 0x%02x.\n", value, reg);
return result;
}
static u16 lm93_read_word(struct i2c_client *client, u8 reg)
{
int value, i;
/* retry in case of read errors */
for (i=1; i<=MAX_RETRIES; i++) {
if ((value = i2c_smbus_read_word_data(client, reg)) >= 0) {
return value;
} else {
dev_warn(&client->dev,"lm93: read word data failed, "
"address 0x%02x.\n", reg);
mdelay(i + 3);
}
}
/* <TODO> what to return in case of error? */
dev_err(&client->dev,"lm93: All read word retries failed!!\n");
return 0;
}
static int lm93_write_word(struct i2c_client *client, u8 reg, u16 value)
{
int result;
/* <TODO> how to handle write errors? */
result = i2c_smbus_write_word_data(client, reg, value);
if (result < 0)
dev_warn(&client->dev,"lm93: write word data failed, "
"0x%04x at address 0x%02x.\n", value, reg);
return result;
}
static u8 lm93_block_buffer[I2C_SMBUS_BLOCK_MAX];
/*
read block data into values, retry if not expected length
fbn => index to lm93_block_read_cmds table
(Fixed Block Number - section 14.5.2 of LM93 datasheet)
*/
static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values)
{
int i, result=0;
for (i = 1; i <= MAX_RETRIES; i++) {
result = i2c_smbus_read_block_data(client,
lm93_block_read_cmds[fbn].cmd, lm93_block_buffer);
if (result == lm93_block_read_cmds[fbn].len) {
break;
} else {
dev_warn(&client->dev,"lm93: block read data failed, "
"command 0x%02x.\n",
lm93_block_read_cmds[fbn].cmd);
mdelay(i + 3);
}
}
if (result == lm93_block_read_cmds[fbn].len) {
memcpy(values,lm93_block_buffer,lm93_block_read_cmds[fbn].len);
} else {
/* <TODO> what to do in case of error? */
}
}
static struct lm93_data *lm93_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
const unsigned long interval = HZ + (HZ / 2);
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + interval) ||
!data->valid) {
data->update(data, client);
data->last_updated = jiffies;
data->valid = 1;
}
mutex_unlock(&data->update_lock);
return data;
}
/* update routine for data that has no corresponding SMBus block command */
static void lm93_update_client_common(struct lm93_data *data,
struct i2c_client *client)
{
int i;
u8 *ptr;
/* temp1 - temp4: limits */
for (i = 0; i < 4; i++) {
data->temp_lim[i].min =
lm93_read_byte(client, LM93_REG_TEMP_MIN(i));
data->temp_lim[i].max =
lm93_read_byte(client, LM93_REG_TEMP_MAX(i));
}
/* config register */
data->config = lm93_read_byte(client, LM93_REG_CONFIG);
/* vid1 - vid2: values */
for (i = 0; i < 2; i++)
data->vid[i] = lm93_read_byte(client, LM93_REG_VID(i));
/* prochot1 - prochot2: limits */
for (i = 0; i < 2; i++)
data->prochot_max[i] = lm93_read_byte(client,
LM93_REG_PROCHOT_MAX(i));
/* vccp1 - vccp2: VID relative limits */
for (i = 0; i < 2; i++)
data->vccp_limits[i] = lm93_read_byte(client,
LM93_REG_VCCP_LIMIT_OFF(i));
/* GPIO input state */
data->gpi = lm93_read_byte(client, LM93_REG_GPI);
/* #PROCHOT override state */
data->prochot_override = lm93_read_byte(client,
LM93_REG_PROCHOT_OVERRIDE);
/* #PROCHOT intervals */
data->prochot_interval = lm93_read_byte(client,
LM93_REG_PROCHOT_INTERVAL);
/* Fan Boost Termperature registers */
for (i = 0; i < 4; i++)
data->boost[i] = lm93_read_byte(client, LM93_REG_BOOST(i));
/* Fan Boost Temperature Hyst. registers */
data->boost_hyst[0] = lm93_read_byte(client, LM93_REG_BOOST_HYST_12);
data->boost_hyst[1] = lm93_read_byte(client, LM93_REG_BOOST_HYST_34);
/* Temperature Zone Min. PWM & Hysteresis registers */
data->auto_pwm_min_hyst[0] =
lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_12);
data->auto_pwm_min_hyst[1] =
lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_34);
/* #PROCHOT & #VRDHOT PWM Ramp Control register */
data->pwm_ramp_ctl = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
/* misc setup registers */
data->sfc1 = lm93_read_byte(client, LM93_REG_SFC1);
data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
data->sf_tach_to_pwm = lm93_read_byte(client,
LM93_REG_SF_TACH_TO_PWM);
/* write back alarm values to clear */
for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++)
lm93_write_byte(client, LM93_REG_HOST_ERROR_1 + i, *(ptr + i));
}
/* update routine which uses SMBus block data commands */
static void lm93_update_client_full(struct lm93_data *data,
struct i2c_client *client)
{
dev_dbg(&client->dev,"starting device update (block data enabled)\n");
/* in1 - in16: values & limits */
lm93_read_block(client, 3, (u8 *)(data->block3));
lm93_read_block(client, 7, (u8 *)(data->block7));
/* temp1 - temp4: values */
lm93_read_block(client, 2, (u8 *)(data->block2));
/* prochot1 - prochot2: values */
lm93_read_block(client, 4, (u8 *)(data->block4));
/* fan1 - fan4: values & limits */
lm93_read_block(client, 5, (u8 *)(data->block5));
lm93_read_block(client, 8, (u8 *)(data->block8));
/* pmw control registers */
lm93_read_block(client, 9, (u8 *)(data->block9));
/* alarm values */
lm93_read_block(client, 1, (u8 *)(&data->block1));
/* auto/pwm registers */
lm93_read_block(client, 10, (u8 *)(&data->block10));
lm93_update_client_common(data, client);
}
/* update routine which uses SMBus byte/word data commands only */
static void lm93_update_client_min(struct lm93_data *data,
struct i2c_client *client)
{
int i,j;
u8 *ptr;
dev_dbg(&client->dev,"starting device update (block data disabled)\n");
/* in1 - in16: values & limits */
for (i = 0; i < 16; i++) {
data->block3[i] =
lm93_read_byte(client, LM93_REG_IN(i));
data->block7[i].min =
lm93_read_byte(client, LM93_REG_IN_MIN(i));
data->block7[i].max =
lm93_read_byte(client, LM93_REG_IN_MAX(i));
}
/* temp1 - temp4: values */
for (i = 0; i < 4; i++) {
data->block2[i] =
lm93_read_byte(client, LM93_REG_TEMP(i));
}
/* prochot1 - prochot2: values */
for (i = 0; i < 2; i++) {
data->block4[i].cur =
lm93_read_byte(client, LM93_REG_PROCHOT_CUR(i));
data->block4[i].avg =
lm93_read_byte(client, LM93_REG_PROCHOT_AVG(i));
}
/* fan1 - fan4: values & limits */
for (i = 0; i < 4; i++) {
data->block5[i] =
lm93_read_word(client, LM93_REG_FAN(i));
data->block8[i] =
lm93_read_word(client, LM93_REG_FAN_MIN(i));
}
/* pwm control registers */
for (i = 0; i < 2; i++) {
for (j = 0; j < 4; j++) {
data->block9[i][j] =
lm93_read_byte(client, LM93_REG_PWM_CTL(i,j));
}
}
/* alarm values */
for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++) {
*(ptr + i) =
lm93_read_byte(client, LM93_REG_HOST_ERROR_1 + i);
}
/* auto/pwm (base temp) registers */
for (i = 0; i < 4; i++) {
data->block10.base[i] =
lm93_read_byte(client, LM93_REG_TEMP_BASE(i));
}
/* auto/pwm (offset temp) registers */
for (i = 0; i < 12; i++) {
data->block10.offset[i] =
lm93_read_byte(client, LM93_REG_TEMP_OFFSET(i));
}
lm93_update_client_common(data, client);
}
/* following are the sysfs callback functions */
static ssize_t show_in(struct device *dev, struct device_attribute *attr,
char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf, "%d\n", LM93_IN_FROM_REG(nr, data->block3[nr]));
}
static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 0);
static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 1);
static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 2);
static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 3);
static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 4);
static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 5);
static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 6);
static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 7);
static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_in, NULL, 8);
static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_in, NULL, 9);
static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, show_in, NULL, 10);
static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, show_in, NULL, 11);
static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, show_in, NULL, 12);
static SENSOR_DEVICE_ATTR(in14_input, S_IRUGO, show_in, NULL, 13);
static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, show_in, NULL, 14);
static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in, NULL, 15);
static ssize_t show_in_min(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
int vccp = nr - 6;
long rc, vid;
if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
vid = LM93_VID_FROM_REG(data->vid[vccp]);
rc = LM93_IN_MIN_FROM_REG(data->vccp_limits[vccp], vid);
}
else {
rc = LM93_IN_FROM_REG(nr, data->block7[nr].min); \
}
return sprintf(buf, "%ld\n", rc); \
}
static ssize_t store_in_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
int vccp = nr - 6;
long vid;
mutex_lock(&data->update_lock);
if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
vid = LM93_VID_FROM_REG(data->vid[vccp]);
data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0xf0) |
LM93_IN_REL_TO_REG(val, 0, vid);
lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
data->vccp_limits[vccp]);
}
else {
data->block7[nr].min = LM93_IN_TO_REG(nr,val);
lm93_write_byte(client, LM93_REG_IN_MIN(nr),
data->block7[nr].min);
}
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 0);
static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 1);
static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 2);
static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 3);
static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 4);
static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 5);
static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 6);
static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 7);
static SENSOR_DEVICE_ATTR(in9_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 8);
static SENSOR_DEVICE_ATTR(in10_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 9);
static SENSOR_DEVICE_ATTR(in11_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 10);
static SENSOR_DEVICE_ATTR(in12_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 11);
static SENSOR_DEVICE_ATTR(in13_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 12);
static SENSOR_DEVICE_ATTR(in14_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 13);
static SENSOR_DEVICE_ATTR(in15_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 14);
static SENSOR_DEVICE_ATTR(in16_min, S_IWUSR | S_IRUGO,
show_in_min, store_in_min, 15);
static ssize_t show_in_max(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
int vccp = nr - 6;
long rc, vid;
if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
vid = LM93_VID_FROM_REG(data->vid[vccp]);
rc = LM93_IN_MAX_FROM_REG(data->vccp_limits[vccp],vid);
}
else {
rc = LM93_IN_FROM_REG(nr,data->block7[nr].max); \
}
return sprintf(buf,"%ld\n",rc); \
}
static ssize_t store_in_max(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
int vccp = nr - 6;
long vid;
mutex_lock(&data->update_lock);
if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
vid = LM93_VID_FROM_REG(data->vid[vccp]);
data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0x0f) |
LM93_IN_REL_TO_REG(val, 1, vid);
lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
data->vccp_limits[vccp]);
}
else {
data->block7[nr].max = LM93_IN_TO_REG(nr,val);
lm93_write_byte(client, LM93_REG_IN_MAX(nr),
data->block7[nr].max);
}
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 0);
static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 1);
static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 2);
static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 3);
static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 4);
static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 5);
static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 6);
static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 7);
static SENSOR_DEVICE_ATTR(in9_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 8);
static SENSOR_DEVICE_ATTR(in10_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 9);
static SENSOR_DEVICE_ATTR(in11_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 10);
static SENSOR_DEVICE_ATTR(in12_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 11);
static SENSOR_DEVICE_ATTR(in13_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 12);
static SENSOR_DEVICE_ATTR(in14_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 13);
static SENSOR_DEVICE_ATTR(in15_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 14);
static SENSOR_DEVICE_ATTR(in16_max, S_IWUSR | S_IRUGO,
show_in_max, store_in_max, 15);
static ssize_t show_temp(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->block2[nr]));
}
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
static ssize_t show_temp_min(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->temp_lim[nr].min));
}
static ssize_t store_temp_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->temp_lim[nr].min = LM93_TEMP_TO_REG(val);
lm93_write_byte(client, LM93_REG_TEMP_MIN(nr), data->temp_lim[nr].min);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
show_temp_min, store_temp_min, 0);
static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO,
show_temp_min, store_temp_min, 1);
static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO,
show_temp_min, store_temp_min, 2);
static ssize_t show_temp_max(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->temp_lim[nr].max));
}
static ssize_t store_temp_max(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->temp_lim[nr].max = LM93_TEMP_TO_REG(val);
lm93_write_byte(client, LM93_REG_TEMP_MAX(nr), data->temp_lim[nr].max);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
show_temp_max, store_temp_max, 0);
static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO,
show_temp_max, store_temp_max, 1);
static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO,
show_temp_max, store_temp_max, 2);
static ssize_t show_temp_auto_base(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->block10.base[nr]));
}
static ssize_t store_temp_auto_base(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->block10.base[nr] = LM93_TEMP_TO_REG(val);
lm93_write_byte(client, LM93_REG_TEMP_BASE(nr), data->block10.base[nr]);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(temp1_auto_base, S_IWUSR | S_IRUGO,
show_temp_auto_base, store_temp_auto_base, 0);
static SENSOR_DEVICE_ATTR(temp2_auto_base, S_IWUSR | S_IRUGO,
show_temp_auto_base, store_temp_auto_base, 1);
static SENSOR_DEVICE_ATTR(temp3_auto_base, S_IWUSR | S_IRUGO,
show_temp_auto_base, store_temp_auto_base, 2);
static ssize_t show_temp_auto_boost(struct device *dev,
struct device_attribute *attr,char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->boost[nr]));
}
static ssize_t store_temp_auto_boost(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->boost[nr] = LM93_TEMP_TO_REG(val);
lm93_write_byte(client, LM93_REG_BOOST(nr), data->boost[nr]);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(temp1_auto_boost, S_IWUSR | S_IRUGO,
show_temp_auto_boost, store_temp_auto_boost, 0);
static SENSOR_DEVICE_ATTR(temp2_auto_boost, S_IWUSR | S_IRUGO,
show_temp_auto_boost, store_temp_auto_boost, 1);
static SENSOR_DEVICE_ATTR(temp3_auto_boost, S_IWUSR | S_IRUGO,
show_temp_auto_boost, store_temp_auto_boost, 2);
static ssize_t show_temp_auto_boost_hyst(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
return sprintf(buf,"%d\n",
LM93_AUTO_BOOST_HYST_FROM_REGS(data, nr, mode));
}
static ssize_t store_temp_auto_boost_hyst(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
/* force 0.5C/bit mode */
data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
data->boost_hyst[nr/2] = LM93_AUTO_BOOST_HYST_TO_REG(data, val, nr, 1);
lm93_write_byte(client, LM93_REG_BOOST_HYST(nr),
data->boost_hyst[nr/2]);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(temp1_auto_boost_hyst, S_IWUSR | S_IRUGO,
show_temp_auto_boost_hyst,
store_temp_auto_boost_hyst, 0);
static SENSOR_DEVICE_ATTR(temp2_auto_boost_hyst, S_IWUSR | S_IRUGO,
show_temp_auto_boost_hyst,
store_temp_auto_boost_hyst, 1);
static SENSOR_DEVICE_ATTR(temp3_auto_boost_hyst, S_IWUSR | S_IRUGO,
show_temp_auto_boost_hyst,
store_temp_auto_boost_hyst, 2);
static ssize_t show_temp_auto_offset(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
int nr = s_attr->index;
int ofs = s_attr->nr;
struct lm93_data *data = lm93_update_device(dev);
int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
return sprintf(buf,"%d\n",
LM93_TEMP_AUTO_OFFSET_FROM_REG(data->block10.offset[ofs],
nr,mode));
}
static ssize_t store_temp_auto_offset(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
int nr = s_attr->index;
int ofs = s_attr->nr;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
/* force 0.5C/bit mode */
data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
data->block10.offset[ofs] = LM93_TEMP_AUTO_OFFSET_TO_REG(
data->block10.offset[ofs], val, nr, 1);
lm93_write_byte(client, LM93_REG_TEMP_OFFSET(ofs),
data->block10.offset[ofs]);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR_2(temp1_auto_offset1, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 0, 0);
static SENSOR_DEVICE_ATTR_2(temp1_auto_offset2, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 1, 0);
static SENSOR_DEVICE_ATTR_2(temp1_auto_offset3, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 2, 0);
static SENSOR_DEVICE_ATTR_2(temp1_auto_offset4, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 3, 0);
static SENSOR_DEVICE_ATTR_2(temp1_auto_offset5, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 4, 0);
static SENSOR_DEVICE_ATTR_2(temp1_auto_offset6, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 5, 0);
static SENSOR_DEVICE_ATTR_2(temp1_auto_offset7, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 6, 0);
static SENSOR_DEVICE_ATTR_2(temp1_auto_offset8, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 7, 0);
static SENSOR_DEVICE_ATTR_2(temp1_auto_offset9, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 8, 0);
static SENSOR_DEVICE_ATTR_2(temp1_auto_offset10, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 9, 0);
static SENSOR_DEVICE_ATTR_2(temp1_auto_offset11, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 10, 0);
static SENSOR_DEVICE_ATTR_2(temp1_auto_offset12, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 11, 0);
static SENSOR_DEVICE_ATTR_2(temp2_auto_offset1, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 0, 1);
static SENSOR_DEVICE_ATTR_2(temp2_auto_offset2, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 1, 1);
static SENSOR_DEVICE_ATTR_2(temp2_auto_offset3, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 2, 1);
static SENSOR_DEVICE_ATTR_2(temp2_auto_offset4, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 3, 1);
static SENSOR_DEVICE_ATTR_2(temp2_auto_offset5, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 4, 1);
static SENSOR_DEVICE_ATTR_2(temp2_auto_offset6, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 5, 1);
static SENSOR_DEVICE_ATTR_2(temp2_auto_offset7, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 6, 1);
static SENSOR_DEVICE_ATTR_2(temp2_auto_offset8, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 7, 1);
static SENSOR_DEVICE_ATTR_2(temp2_auto_offset9, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 8, 1);
static SENSOR_DEVICE_ATTR_2(temp2_auto_offset10, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 9, 1);
static SENSOR_DEVICE_ATTR_2(temp2_auto_offset11, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 10, 1);
static SENSOR_DEVICE_ATTR_2(temp2_auto_offset12, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 11, 1);
static SENSOR_DEVICE_ATTR_2(temp3_auto_offset1, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 0, 2);
static SENSOR_DEVICE_ATTR_2(temp3_auto_offset2, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 1, 2);
static SENSOR_DEVICE_ATTR_2(temp3_auto_offset3, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 2, 2);
static SENSOR_DEVICE_ATTR_2(temp3_auto_offset4, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 3, 2);
static SENSOR_DEVICE_ATTR_2(temp3_auto_offset5, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 4, 2);
static SENSOR_DEVICE_ATTR_2(temp3_auto_offset6, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 5, 2);
static SENSOR_DEVICE_ATTR_2(temp3_auto_offset7, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 6, 2);
static SENSOR_DEVICE_ATTR_2(temp3_auto_offset8, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 7, 2);
static SENSOR_DEVICE_ATTR_2(temp3_auto_offset9, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 8, 2);
static SENSOR_DEVICE_ATTR_2(temp3_auto_offset10, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 9, 2);
static SENSOR_DEVICE_ATTR_2(temp3_auto_offset11, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 10, 2);
static SENSOR_DEVICE_ATTR_2(temp3_auto_offset12, S_IWUSR | S_IRUGO,
show_temp_auto_offset, store_temp_auto_offset, 11, 2);
static ssize_t show_temp_auto_pwm_min(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
u8 reg, ctl4;
struct lm93_data *data = lm93_update_device(dev);
reg = data->auto_pwm_min_hyst[nr/2] >> 4 & 0x0f;
ctl4 = data->block9[nr][LM93_PWM_CTL4];
return sprintf(buf,"%d\n",LM93_PWM_FROM_REG(reg, (ctl4 & 0x07) ?
LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
}
static ssize_t store_temp_auto_pwm_min(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
u8 reg, ctl4;
mutex_lock(&data->update_lock);
reg = lm93_read_byte(client, LM93_REG_PWM_MIN_HYST(nr));
ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4));
reg = (reg & 0x0f) |
LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
LM93_PWM_MAP_LO_FREQ :
LM93_PWM_MAP_HI_FREQ) << 4;
data->auto_pwm_min_hyst[nr/2] = reg;
lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(temp1_auto_pwm_min, S_IWUSR | S_IRUGO,
show_temp_auto_pwm_min,
store_temp_auto_pwm_min, 0);
static SENSOR_DEVICE_ATTR(temp2_auto_pwm_min, S_IWUSR | S_IRUGO,
show_temp_auto_pwm_min,
store_temp_auto_pwm_min, 1);
static SENSOR_DEVICE_ATTR(temp3_auto_pwm_min, S_IWUSR | S_IRUGO,
show_temp_auto_pwm_min,
store_temp_auto_pwm_min, 2);
static ssize_t show_temp_auto_offset_hyst(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
return sprintf(buf,"%d\n",LM93_TEMP_OFFSET_FROM_REG(
data->auto_pwm_min_hyst[nr/2], mode));
}
static ssize_t store_temp_auto_offset_hyst(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
u8 reg;
mutex_lock(&data->update_lock);
/* force 0.5C/bit mode */
data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
reg = data->auto_pwm_min_hyst[nr/2];
reg = (reg & 0xf0) | (LM93_TEMP_OFFSET_TO_REG(val, 1) & 0x0f);
data->auto_pwm_min_hyst[nr/2] = reg;
lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(temp1_auto_offset_hyst, S_IWUSR | S_IRUGO,
show_temp_auto_offset_hyst,
store_temp_auto_offset_hyst, 0);
static SENSOR_DEVICE_ATTR(temp2_auto_offset_hyst, S_IWUSR | S_IRUGO,
show_temp_auto_offset_hyst,
store_temp_auto_offset_hyst, 1);
static SENSOR_DEVICE_ATTR(temp3_auto_offset_hyst, S_IWUSR | S_IRUGO,
show_temp_auto_offset_hyst,
store_temp_auto_offset_hyst, 2);
static ssize_t show_fan_input(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
int nr = s_attr->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",LM93_FAN_FROM_REG(data->block5[nr]));
}
static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2);
static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan_input, NULL, 3);
static ssize_t show_fan_min(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",LM93_FAN_FROM_REG(data->block8[nr]));
}
static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->block8[nr] = LM93_FAN_TO_REG(val);
lm93_write_word(client,LM93_REG_FAN_MIN(nr),data->block8[nr]);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
show_fan_min, store_fan_min, 0);
static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
show_fan_min, store_fan_min, 1);
static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
show_fan_min, store_fan_min, 2);
static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
show_fan_min, store_fan_min, 3);
/* some tedious bit-twiddling here to deal with the register format:
data->sf_tach_to_pwm: (tach to pwm mapping bits)
bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0
T4:P2 T4:P1 T3:P2 T3:P1 T2:P2 T2:P1 T1:P2 T1:P1
data->sfc2: (enable bits)
bit | 3 | 2 | 1 | 0
T4 T3 T2 T1
*/
static ssize_t show_fan_smart_tach(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
long rc = 0;
int mapping;
/* extract the relevant mapping */
mapping = (data->sf_tach_to_pwm >> (nr * 2)) & 0x03;
/* if there's a mapping and it's enabled */
if (mapping && ((data->sfc2 >> nr) & 0x01))
rc = mapping;
return sprintf(buf,"%ld\n",rc);
}
/* helper function - must grab data->update_lock before calling
fan is 0-3, indicating fan1-fan4 */
static void lm93_write_fan_smart_tach(struct i2c_client *client,
struct lm93_data *data, int fan, long value)
{
/* insert the new mapping and write it out */
data->sf_tach_to_pwm = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
data->sf_tach_to_pwm &= ~(0x3 << fan * 2);
data->sf_tach_to_pwm |= value << fan * 2;
lm93_write_byte(client, LM93_REG_SF_TACH_TO_PWM, data->sf_tach_to_pwm);
/* insert the enable bit and write it out */
data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
if (value)
data->sfc2 |= 1 << fan;
else
data->sfc2 &= ~(1 << fan);
lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
}
static ssize_t store_fan_smart_tach(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
/* sanity test, ignore the write otherwise */
if (0 <= val && val <= 2) {
/* can't enable if pwm freq is 22.5KHz */
if (val) {
u8 ctl4 = lm93_read_byte(client,
LM93_REG_PWM_CTL(val-1,LM93_PWM_CTL4));
if ((ctl4 & 0x07) == 0)
val = 0;
}
lm93_write_fan_smart_tach(client, data, nr, val);
}
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(fan1_smart_tach, S_IWUSR | S_IRUGO,
show_fan_smart_tach, store_fan_smart_tach, 0);
static SENSOR_DEVICE_ATTR(fan2_smart_tach, S_IWUSR | S_IRUGO,
show_fan_smart_tach, store_fan_smart_tach, 1);
static SENSOR_DEVICE_ATTR(fan3_smart_tach, S_IWUSR | S_IRUGO,
show_fan_smart_tach, store_fan_smart_tach, 2);
static SENSOR_DEVICE_ATTR(fan4_smart_tach, S_IWUSR | S_IRUGO,
show_fan_smart_tach, store_fan_smart_tach, 3);
static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
u8 ctl2, ctl4;
long rc;
ctl2 = data->block9[nr][LM93_PWM_CTL2];
ctl4 = data->block9[nr][LM93_PWM_CTL4];
if (ctl2 & 0x01) /* show user commanded value if enabled */
rc = data->pwm_override[nr];
else /* show present h/w value if manual pwm disabled */
rc = LM93_PWM_FROM_REG(ctl2 >> 4, (ctl4 & 0x07) ?
LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ);
return sprintf(buf,"%ld\n",rc);
}
static ssize_t store_pwm(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
u8 ctl2, ctl4;
mutex_lock(&data->update_lock);
ctl2 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2));
ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4));
ctl2 = (ctl2 & 0x0f) | LM93_PWM_TO_REG(val,(ctl4 & 0x07) ?
LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ) << 4;
/* save user commanded value */
data->pwm_override[nr] = LM93_PWM_FROM_REG(ctl2 >> 4,
(ctl4 & 0x07) ? LM93_PWM_MAP_LO_FREQ :
LM93_PWM_MAP_HI_FREQ);
lm93_write_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2),ctl2);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
static ssize_t show_pwm_enable(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
u8 ctl2;
long rc;
ctl2 = data->block9[nr][LM93_PWM_CTL2];
if (ctl2 & 0x01) /* manual override enabled ? */
rc = ((ctl2 & 0xF0) == 0xF0) ? 0 : 1;
else
rc = 2;
return sprintf(buf,"%ld\n",rc);
}
static ssize_t store_pwm_enable(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
u8 ctl2;
mutex_lock(&data->update_lock);
ctl2 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2));
switch (val) {
case 0:
ctl2 |= 0xF1; /* enable manual override, set PWM to max */
break;
case 1: ctl2 |= 0x01; /* enable manual override */
break;
case 2: ctl2 &= ~0x01; /* disable manual override */
break;
default:
mutex_unlock(&data->update_lock);
return -EINVAL;
}
lm93_write_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2),ctl2);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
show_pwm_enable, store_pwm_enable, 0);
static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
show_pwm_enable, store_pwm_enable, 1);
static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
u8 ctl4;
ctl4 = data->block9[nr][LM93_PWM_CTL4];
return sprintf(buf,"%d\n",LM93_PWM_FREQ_FROM_REG(ctl4));
}
/* helper function - must grab data->update_lock before calling
pwm is 0-1, indicating pwm1-pwm2
this disables smart tach for all tach channels bound to the given pwm */
static void lm93_disable_fan_smart_tach(struct i2c_client *client,
struct lm93_data *data, int pwm)
{
int mapping = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
int mask;
/* collapse the mapping into a mask of enable bits */
mapping = (mapping >> pwm) & 0x55;
mask = mapping & 0x01;
mask |= (mapping & 0x04) >> 1;
mask |= (mapping & 0x10) >> 2;
mask |= (mapping & 0x40) >> 3;
/* disable smart tach according to the mask */
data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
data->sfc2 &= ~mask;
lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
}
static ssize_t store_pwm_freq(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
u8 ctl4;
mutex_lock(&data->update_lock);
ctl4 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4));
ctl4 = (ctl4 & 0xf8) | LM93_PWM_FREQ_TO_REG(val);
data->block9[nr][LM93_PWM_CTL4] = ctl4;
/* ctl4 == 0 -> 22.5KHz -> disable smart tach */
if (!ctl4)
lm93_disable_fan_smart_tach(client, data, nr);
lm93_write_byte(client, LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4), ctl4);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(pwm1_freq, S_IWUSR | S_IRUGO,
show_pwm_freq, store_pwm_freq, 0);
static SENSOR_DEVICE_ATTR(pwm2_freq, S_IWUSR | S_IRUGO,
show_pwm_freq, store_pwm_freq, 1);
static ssize_t show_pwm_auto_channels(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",data->block9[nr][LM93_PWM_CTL1]);
}
static ssize_t store_pwm_auto_channels(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->block9[nr][LM93_PWM_CTL1] = SENSORS_LIMIT(val, 0, 255);
lm93_write_byte(client, LM93_REG_PWM_CTL(nr,LM93_PWM_CTL1),
data->block9[nr][LM93_PWM_CTL1]);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(pwm1_auto_channels, S_IWUSR | S_IRUGO,
show_pwm_auto_channels, store_pwm_auto_channels, 0);
static SENSOR_DEVICE_ATTR(pwm2_auto_channels, S_IWUSR | S_IRUGO,
show_pwm_auto_channels, store_pwm_auto_channels, 1);
static ssize_t show_pwm_auto_spinup_min(struct device *dev,
struct device_attribute *attr,char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
u8 ctl3, ctl4;
ctl3 = data->block9[nr][LM93_PWM_CTL3];
ctl4 = data->block9[nr][LM93_PWM_CTL4];
return sprintf(buf,"%d\n",
LM93_PWM_FROM_REG(ctl3 & 0x0f, (ctl4 & 0x07) ?
LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
}
static ssize_t store_pwm_auto_spinup_min(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
u8 ctl3, ctl4;
mutex_lock(&data->update_lock);
ctl3 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
ctl4 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
ctl3 = (ctl3 & 0xf0) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
LM93_PWM_MAP_LO_FREQ :
LM93_PWM_MAP_HI_FREQ);
data->block9[nr][LM93_PWM_CTL3] = ctl3;
lm93_write_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_min, S_IWUSR | S_IRUGO,
show_pwm_auto_spinup_min,
store_pwm_auto_spinup_min, 0);
static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_min, S_IWUSR | S_IRUGO,
show_pwm_auto_spinup_min,
store_pwm_auto_spinup_min, 1);
static ssize_t show_pwm_auto_spinup_time(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",LM93_SPINUP_TIME_FROM_REG(
data->block9[nr][LM93_PWM_CTL3]));
}
static ssize_t store_pwm_auto_spinup_time(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
u8 ctl3;
mutex_lock(&data->update_lock);
ctl3 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
ctl3 = (ctl3 & 0x1f) | (LM93_SPINUP_TIME_TO_REG(val) << 5 & 0xe0);
data->block9[nr][LM93_PWM_CTL3] = ctl3;
lm93_write_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_time, S_IWUSR | S_IRUGO,
show_pwm_auto_spinup_time,
store_pwm_auto_spinup_time, 0);
static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_time, S_IWUSR | S_IRUGO,
show_pwm_auto_spinup_time,
store_pwm_auto_spinup_time, 1);
static ssize_t show_pwm_auto_prochot_ramp(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",
LM93_RAMP_FROM_REG(data->pwm_ramp_ctl >> 4 & 0x0f));
}
static ssize_t store_pwm_auto_prochot_ramp(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
u8 ramp;
mutex_lock(&data->update_lock);
ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
ramp = (ramp & 0x0f) | (LM93_RAMP_TO_REG(val) << 4 & 0xf0);
lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
mutex_unlock(&data->update_lock);
return count;
}
static DEVICE_ATTR(pwm_auto_prochot_ramp, S_IRUGO | S_IWUSR,
show_pwm_auto_prochot_ramp,
store_pwm_auto_prochot_ramp);
static ssize_t show_pwm_auto_vrdhot_ramp(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",
LM93_RAMP_FROM_REG(data->pwm_ramp_ctl & 0x0f));
}
static ssize_t store_pwm_auto_vrdhot_ramp(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
u8 ramp;
mutex_lock(&data->update_lock);
ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
ramp = (ramp & 0xf0) | (LM93_RAMP_TO_REG(val) & 0x0f);
lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
mutex_unlock(&data->update_lock);
return 0;
}
static DEVICE_ATTR(pwm_auto_vrdhot_ramp, S_IRUGO | S_IWUSR,
show_pwm_auto_vrdhot_ramp,
store_pwm_auto_vrdhot_ramp);
static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",LM93_VID_FROM_REG(data->vid[nr]));
}
static SENSOR_DEVICE_ATTR(vid1, S_IRUGO, show_vid, NULL, 0);
static SENSOR_DEVICE_ATTR(vid2, S_IRUGO, show_vid, NULL, 1);
static ssize_t show_prochot(struct device *dev, struct device_attribute *attr,
char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",data->block4[nr].cur);
}
static SENSOR_DEVICE_ATTR(prochot1, S_IRUGO, show_prochot, NULL, 0);
static SENSOR_DEVICE_ATTR(prochot2, S_IRUGO, show_prochot, NULL, 1);
static ssize_t show_prochot_avg(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",data->block4[nr].avg);
}
static SENSOR_DEVICE_ATTR(prochot1_avg, S_IRUGO, show_prochot_avg, NULL, 0);
static SENSOR_DEVICE_ATTR(prochot2_avg, S_IRUGO, show_prochot_avg, NULL, 1);
static ssize_t show_prochot_max(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",data->prochot_max[nr]);
}
static ssize_t store_prochot_max(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->prochot_max[nr] = LM93_PROCHOT_TO_REG(val);
lm93_write_byte(client, LM93_REG_PROCHOT_MAX(nr),
data->prochot_max[nr]);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(prochot1_max, S_IWUSR | S_IRUGO,
show_prochot_max, store_prochot_max, 0);
static SENSOR_DEVICE_ATTR(prochot2_max, S_IWUSR | S_IRUGO,
show_prochot_max, store_prochot_max, 1);
static const u8 prochot_override_mask[] = { 0x80, 0x40 };
static ssize_t show_prochot_override(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",
(data->prochot_override & prochot_override_mask[nr]) ? 1 : 0);
}
static ssize_t store_prochot_override(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
if (val)
data->prochot_override |= prochot_override_mask[nr];
else
data->prochot_override &= (~prochot_override_mask[nr]);
lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
data->prochot_override);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(prochot1_override, S_IWUSR | S_IRUGO,
show_prochot_override, store_prochot_override, 0);
static SENSOR_DEVICE_ATTR(prochot2_override, S_IWUSR | S_IRUGO,
show_prochot_override, store_prochot_override, 1);
static ssize_t show_prochot_interval(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
u8 tmp;
if (nr==1)
tmp = (data->prochot_interval & 0xf0) >> 4;
else
tmp = data->prochot_interval & 0x0f;
return sprintf(buf,"%d\n",LM93_INTERVAL_FROM_REG(tmp));
}
static ssize_t store_prochot_interval(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
u8 tmp;
mutex_lock(&data->update_lock);
tmp = lm93_read_byte(client, LM93_REG_PROCHOT_INTERVAL);
if (nr==1)
tmp = (tmp & 0x0f) | (LM93_INTERVAL_TO_REG(val) << 4);
else
tmp = (tmp & 0xf0) | LM93_INTERVAL_TO_REG(val);
data->prochot_interval = tmp;
lm93_write_byte(client, LM93_REG_PROCHOT_INTERVAL, tmp);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(prochot1_interval, S_IWUSR | S_IRUGO,
show_prochot_interval, store_prochot_interval, 0);
static SENSOR_DEVICE_ATTR(prochot2_interval, S_IWUSR | S_IRUGO,
show_prochot_interval, store_prochot_interval, 1);
static ssize_t show_prochot_override_duty_cycle(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",data->prochot_override & 0x0f);
}
static ssize_t store_prochot_override_duty_cycle(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->prochot_override = (data->prochot_override & 0xf0) |
SENSORS_LIMIT(val, 0, 15);
lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
data->prochot_override);
mutex_unlock(&data->update_lock);
return count;
}
static DEVICE_ATTR(prochot_override_duty_cycle, S_IRUGO | S_IWUSR,
show_prochot_override_duty_cycle,
store_prochot_override_duty_cycle);
static ssize_t show_prochot_short(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",(data->config & 0x10) ? 1 : 0);
}
static ssize_t store_prochot_short(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm93_data *data = i2c_get_clientdata(client);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
if (val)
data->config |= 0x10;
else
data->config &= ~0x10;
lm93_write_byte(client, LM93_REG_CONFIG, data->config);
mutex_unlock(&data->update_lock);
return count;
}
static DEVICE_ATTR(prochot_short, S_IRUGO | S_IWUSR,
show_prochot_short, store_prochot_short);
static ssize_t show_vrdhot(struct device *dev, struct device_attribute *attr,
char *buf)
{
int nr = (to_sensor_dev_attr(attr))->index;
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",
data->block1.host_status_1 & (1 << (nr+4)) ? 1 : 0);
}
static SENSOR_DEVICE_ATTR(vrdhot1, S_IRUGO, show_vrdhot, NULL, 0);
static SENSOR_DEVICE_ATTR(vrdhot2, S_IRUGO, show_vrdhot, NULL, 1);
static ssize_t show_gpio(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",LM93_GPI_FROM_REG(data->gpi));
}
static DEVICE_ATTR(gpio, S_IRUGO, show_gpio, NULL);
static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct lm93_data *data = lm93_update_device(dev);
return sprintf(buf,"%d\n",LM93_ALARMS_FROM_REG(data->block1));
}
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
static struct attribute *lm93_attrs[] = {
&sensor_dev_attr_in1_input.dev_attr.attr,
&sensor_dev_attr_in2_input.dev_attr.attr,
&sensor_dev_attr_in3_input.dev_attr.attr,
&sensor_dev_attr_in4_input.dev_attr.attr,
&sensor_dev_attr_in5_input.dev_attr.attr,
&sensor_dev_attr_in6_input.dev_attr.attr,
&sensor_dev_attr_in7_input.dev_attr.attr,
&sensor_dev_attr_in8_input.dev_attr.attr,
&sensor_dev_attr_in9_input.dev_attr.attr,
&sensor_dev_attr_in10_input.dev_attr.attr,
&sensor_dev_attr_in11_input.dev_attr.attr,
&sensor_dev_attr_in12_input.dev_attr.attr,
&sensor_dev_attr_in13_input.dev_attr.attr,
&sensor_dev_attr_in14_input.dev_attr.attr,
&sensor_dev_attr_in15_input.dev_attr.attr,
&sensor_dev_attr_in16_input.dev_attr.attr,
&sensor_dev_attr_in1_min.dev_attr.attr,
&sensor_dev_attr_in2_min.dev_attr.attr,
&sensor_dev_attr_in3_min.dev_attr.attr,
&sensor_dev_attr_in4_min.dev_attr.attr,
&sensor_dev_attr_in5_min.dev_attr.attr,
&sensor_dev_attr_in6_min.dev_attr.attr,
&sensor_dev_attr_in7_min.dev_attr.attr,
&sensor_dev_attr_in8_min.dev_attr.attr,
&sensor_dev_attr_in9_min.dev_attr.attr,
&sensor_dev_attr_in10_min.dev_attr.attr,
&sensor_dev_attr_in11_min.dev_attr.attr,
&sensor_dev_attr_in12_min.dev_attr.attr,
&sensor_dev_attr_in13_min.dev_attr.attr,
&sensor_dev_attr_in14_min.dev_attr.attr,
&sensor_dev_attr_in15_min.dev_attr.attr,
&sensor_dev_attr_in16_min.dev_attr.attr,
&sensor_dev_attr_in1_max.dev_attr.attr,
&sensor_dev_attr_in2_max.dev_attr.attr,
&sensor_dev_attr_in3_max.dev_attr.attr,
&sensor_dev_attr_in4_max.dev_attr.attr,
&sensor_dev_attr_in5_max.dev_attr.attr,
&sensor_dev_attr_in6_max.dev_attr.attr,
&sensor_dev_attr_in7_max.dev_attr.attr,
&sensor_dev_attr_in8_max.dev_attr.attr,
&sensor_dev_attr_in9_max.dev_attr.attr,
&sensor_dev_attr_in10_max.dev_attr.attr,
&sensor_dev_attr_in11_max.dev_attr.attr,
&sensor_dev_attr_in12_max.dev_attr.attr,
&sensor_dev_attr_in13_max.dev_attr.attr,
&sensor_dev_attr_in14_max.dev_attr.attr,
&sensor_dev_attr_in15_max.dev_attr.attr,
&sensor_dev_attr_in16_max.dev_attr.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp2_input.dev_attr.attr,
&sensor_dev_attr_temp3_input.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp2_min.dev_attr.attr,
&sensor_dev_attr_temp3_min.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
&sensor_dev_attr_temp3_max.dev_attr.attr,
&sensor_dev_attr_temp1_auto_base.dev_attr.attr,
&sensor_dev_attr_temp2_auto_base.dev_attr.attr,
&sensor_dev_attr_temp3_auto_base.dev_attr.attr,
&sensor_dev_attr_temp1_auto_boost.dev_attr.attr,
&sensor_dev_attr_temp2_auto_boost.dev_attr.attr,
&sensor_dev_attr_temp3_auto_boost.dev_attr.attr,
&sensor_dev_attr_temp1_auto_boost_hyst.dev_attr.attr,
&sensor_dev_attr_temp2_auto_boost_hyst.dev_attr.attr,
&sensor_dev_attr_temp3_auto_boost_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_auto_offset1.dev_attr.attr,
&sensor_dev_attr_temp1_auto_offset2.dev_attr.attr,
&sensor_dev_attr_temp1_auto_offset3.dev_attr.attr,
&sensor_dev_attr_temp1_auto_offset4.dev_attr.attr,
&sensor_dev_attr_temp1_auto_offset5.dev_attr.attr,
&sensor_dev_attr_temp1_auto_offset6.dev_attr.attr,
&sensor_dev_attr_temp1_auto_offset7.dev_attr.attr,
&sensor_dev_attr_temp1_auto_offset8.dev_attr.attr,
&sensor_dev_attr_temp1_auto_offset9.dev_attr.attr,
&sensor_dev_attr_temp1_auto_offset10.dev_attr.attr,
&sensor_dev_attr_temp1_auto_offset11.dev_attr.attr,
&sensor_dev_attr_temp1_auto_offset12.dev_attr.attr,
&sensor_dev_attr_temp2_auto_offset1.dev_attr.attr,
&sensor_dev_attr_temp2_auto_offset2.dev_attr.attr,
&sensor_dev_attr_temp2_auto_offset3.dev_attr.attr,
&sensor_dev_attr_temp2_auto_offset4.dev_attr.attr,
&sensor_dev_attr_temp2_auto_offset5.dev_attr.attr,
&sensor_dev_attr_temp2_auto_offset6.dev_attr.attr,
&sensor_dev_attr_temp2_auto_offset7.dev_attr.attr,
&sensor_dev_attr_temp2_auto_offset8.dev_attr.attr,
&sensor_dev_attr_temp2_auto_offset9.dev_attr.attr,
&sensor_dev_attr_temp2_auto_offset10.dev_attr.attr,
&sensor_dev_attr_temp2_auto_offset11.dev_attr.attr,
&sensor_dev_attr_temp2_auto_offset12.dev_attr.attr,
&sensor_dev_attr_temp3_auto_offset1.dev_attr.attr,
&sensor_dev_attr_temp3_auto_offset2.dev_attr.attr,
&sensor_dev_attr_temp3_auto_offset3.dev_attr.attr,
&sensor_dev_attr_temp3_auto_offset4.dev_attr.attr,
&sensor_dev_attr_temp3_auto_offset5.dev_attr.attr,
&sensor_dev_attr_temp3_auto_offset6.dev_attr.attr,
&sensor_dev_attr_temp3_auto_offset7.dev_attr.attr,
&sensor_dev_attr_temp3_auto_offset8.dev_attr.attr,
&sensor_dev_attr_temp3_auto_offset9.dev_attr.attr,
&sensor_dev_attr_temp3_auto_offset10.dev_attr.attr,
&sensor_dev_attr_temp3_auto_offset11.dev_attr.attr,
&sensor_dev_attr_temp3_auto_offset12.dev_attr.attr,
&sensor_dev_attr_temp1_auto_pwm_min.dev_attr.attr,
&sensor_dev_attr_temp2_auto_pwm_min.dev_attr.attr,
&sensor_dev_attr_temp3_auto_pwm_min.dev_attr.attr,
&sensor_dev_attr_temp1_auto_offset_hyst.dev_attr.attr,
&sensor_dev_attr_temp2_auto_offset_hyst.dev_attr.attr,
&sensor_dev_attr_temp3_auto_offset_hyst.dev_attr.attr,
&sensor_dev_attr_fan1_input.dev_attr.attr,
&sensor_dev_attr_fan2_input.dev_attr.attr,
&sensor_dev_attr_fan3_input.dev_attr.attr,
&sensor_dev_attr_fan4_input.dev_attr.attr,
&sensor_dev_attr_fan1_min.dev_attr.attr,
&sensor_dev_attr_fan2_min.dev_attr.attr,
&sensor_dev_attr_fan3_min.dev_attr.attr,
&sensor_dev_attr_fan4_min.dev_attr.attr,
&sensor_dev_attr_fan1_smart_tach.dev_attr.attr,
&sensor_dev_attr_fan2_smart_tach.dev_attr.attr,
&sensor_dev_attr_fan3_smart_tach.dev_attr.attr,
&sensor_dev_attr_fan4_smart_tach.dev_attr.attr,
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm2.dev_attr.attr,
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
&sensor_dev_attr_pwm2_enable.dev_attr.attr,
&sensor_dev_attr_pwm1_freq.dev_attr.attr,
&sensor_dev_attr_pwm2_freq.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_spinup_min.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_spinup_min.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_spinup_time.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_spinup_time.dev_attr.attr,
&dev_attr_pwm_auto_prochot_ramp.attr,
&dev_attr_pwm_auto_vrdhot_ramp.attr,
&sensor_dev_attr_vid1.dev_attr.attr,
&sensor_dev_attr_vid2.dev_attr.attr,
&sensor_dev_attr_prochot1.dev_attr.attr,
&sensor_dev_attr_prochot2.dev_attr.attr,
&sensor_dev_attr_prochot1_avg.dev_attr.attr,
&sensor_dev_attr_prochot2_avg.dev_attr.attr,
&sensor_dev_attr_prochot1_max.dev_attr.attr,
&sensor_dev_attr_prochot2_max.dev_attr.attr,
&sensor_dev_attr_prochot1_override.dev_attr.attr,
&sensor_dev_attr_prochot2_override.dev_attr.attr,
&sensor_dev_attr_prochot1_interval.dev_attr.attr,
&sensor_dev_attr_prochot2_interval.dev_attr.attr,
&dev_attr_prochot_override_duty_cycle.attr,
&dev_attr_prochot_short.attr,
&sensor_dev_attr_vrdhot1.dev_attr.attr,
&sensor_dev_attr_vrdhot2.dev_attr.attr,
&dev_attr_gpio.attr,
&dev_attr_alarms.attr,
NULL
};
static struct attribute_group lm93_attr_grp = {
.attrs = lm93_attrs,
};
static void lm93_init_client(struct i2c_client *client)
{
int i;
u8 reg;
/* configure VID pin input thresholds */
reg = lm93_read_byte(client, LM93_REG_GPI_VID_CTL);
lm93_write_byte(client, LM93_REG_GPI_VID_CTL,
reg | (vid_agtl ? 0x03 : 0x00));
if (init) {
/* enable #ALERT pin */
reg = lm93_read_byte(client, LM93_REG_CONFIG);
lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x08);
/* enable ASF mode for BMC status registers */
reg = lm93_read_byte(client, LM93_REG_STATUS_CONTROL);
lm93_write_byte(client, LM93_REG_STATUS_CONTROL, reg | 0x02);
/* set sleep state to S0 */
lm93_write_byte(client, LM93_REG_SLEEP_CONTROL, 0);
/* unmask #VRDHOT and dynamic VCCP (if nec) error events */
reg = lm93_read_byte(client, LM93_REG_MISC_ERR_MASK);
reg &= ~0x03;
reg &= ~(vccp_limit_type[0] ? 0x10 : 0);
reg &= ~(vccp_limit_type[1] ? 0x20 : 0);
lm93_write_byte(client, LM93_REG_MISC_ERR_MASK, reg);
}
/* start monitoring */
reg = lm93_read_byte(client, LM93_REG_CONFIG);
lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x01);
/* spin until ready */
for (i=0; i<20; i++) {
msleep(10);
if ((lm93_read_byte(client, LM93_REG_CONFIG) & 0x80) == 0x80)
return;
}
dev_warn(&client->dev,"timed out waiting for sensor "
"chip to signal ready!\n");
}
static int lm93_detect(struct i2c_adapter *adapter, int address, int kind)
{
struct lm93_data *data;
struct i2c_client *client;
int err = -ENODEV, func;
void (*update)(struct lm93_data *, struct i2c_client *);
/* choose update routine based on bus capabilities */
func = i2c_get_functionality(adapter);
if ( ((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) &&
(!disable_block) ) {
dev_dbg(&adapter->dev,"using SMBus block data transactions\n");
update = lm93_update_client_full;
} else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) {
dev_dbg(&adapter->dev,"disabled SMBus block data "
"transactions\n");
update = lm93_update_client_min;
} else {
dev_dbg(&adapter->dev,"detect failed, "
"smbus byte and/or word data not supported!\n");
goto err_out;
}
/* OK. For now, we presume we have a valid client. We now create the
client structure, even though we cannot fill it completely yet.
But it allows us to access lm78_{read,write}_value. */
if ( !(data = kzalloc(sizeof(struct lm93_data), GFP_KERNEL))) {
dev_dbg(&adapter->dev,"out of memory!\n");
err = -ENOMEM;
goto err_out;
}
client = &data->client;
i2c_set_clientdata(client, data);
client->addr = address;
client->adapter = adapter;
client->driver = &lm93_driver;
/* detection */
if (kind < 0) {
int mfr = lm93_read_byte(client, LM93_REG_MFR_ID);
if (mfr != 0x01) {
dev_dbg(&adapter->dev,"detect failed, "
"bad manufacturer id 0x%02x!\n", mfr);
goto err_free;
}
}
if (kind <= 0) {
int ver = lm93_read_byte(client, LM93_REG_VER);
if ((ver == LM93_MFR_ID) || (ver == LM93_MFR_ID_PROTOTYPE)) {
kind = lm93;
} else {
dev_dbg(&adapter->dev,"detect failed, "
"bad version id 0x%02x!\n", ver);
if (kind == 0)
dev_dbg(&adapter->dev,
"(ignored 'force' parameter)\n");
goto err_free;
}
}
/* fill in remaining client fields */
strlcpy(client->name, "lm93", I2C_NAME_SIZE);
dev_dbg(&adapter->dev,"loading %s at %d,0x%02x\n",
client->name, i2c_adapter_id(client->adapter),
client->addr);
/* housekeeping */
data->valid = 0;
data->update = update;
mutex_init(&data->update_lock);
/* tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(client)))
goto err_free;
/* initialize the chip */
lm93_init_client(client);
err = sysfs_create_group(&client->dev.kobj, &lm93_attr_grp);
if (err)
goto err_detach;
/* Register hwmon driver class */
data->class_dev = hwmon_device_register(&client->dev);
if ( !IS_ERR(data->class_dev))
return 0;
err = PTR_ERR(data->class_dev);
dev_err(&client->dev, "error registering hwmon device.\n");
sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
err_detach:
i2c_detach_client(client);
err_free:
kfree(data);
err_out:
return err;
}
/* This function is called when:
* lm93_driver is inserted (when this module is loaded), for each
available adapter
* when a new adapter is inserted (and lm93_driver is still present) */
static int lm93_attach_adapter(struct i2c_adapter *adapter)
{
return i2c_probe(adapter, &addr_data, lm93_detect);
}
static int lm93_detach_client(struct i2c_client *client)
{
struct lm93_data *data = i2c_get_clientdata(client);
int err = 0;
hwmon_device_unregister(data->class_dev);
sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
err = i2c_detach_client(client);
if (!err)
kfree(data);
return err;
}
static struct i2c_driver lm93_driver = {
.driver = {
.name = "lm93",
},
.attach_adapter = lm93_attach_adapter,
.detach_client = lm93_detach_client,
};
static int __init lm93_init(void)
{
return i2c_add_driver(&lm93_driver);
}
static void __exit lm93_exit(void)
{
i2c_del_driver(&lm93_driver);
}
MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>, "
"Hans J. Koch <hjk@linutronix.de");
MODULE_DESCRIPTION("LM93 driver");
MODULE_LICENSE("GPL");
module_init(lm93_init);
module_exit(lm93_exit);
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