mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 19:26:40 +07:00
5f44759470
Clean up and simplify the device initialization function: * Degrade error messages to warnings - what they really are. * Stop warning about VxI mode, we don't really care. * Drop comment about lack of limit initialization - that's the standard way, all hardware monitoring drivers do that. * Only read the configuration register once. * Only write back to the configuration register if needed. * Don't attempt to clear the lock bit, it locks itself to 1. * Move the function to before it's called, so that we no longer need to forware declare it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
1535 lines
47 KiB
C
1535 lines
47 KiB
C
/*
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lm85.c - Part of lm_sensors, Linux kernel modules for hardware
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monitoring
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Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
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Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
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Copyright (c) 2003 Margit Schubert-While <margitsw@t-online.de>
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Copyright (c) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
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Chip details at <http://www.national.com/ds/LM/LM85.pdf>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/jiffies.h>
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#include <linux/i2c.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-vid.h>
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#include <linux/hwmon-sysfs.h>
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#include <linux/err.h>
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#include <linux/mutex.h>
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/* Addresses to scan */
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static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
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/* Insmod parameters */
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I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102);
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/* The LM85 registers */
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#define LM85_REG_IN(nr) (0x20 + (nr))
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#define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2)
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#define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2)
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#define LM85_REG_TEMP(nr) (0x25 + (nr))
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#define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2)
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#define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2)
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/* Fan speeds are LSB, MSB (2 bytes) */
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#define LM85_REG_FAN(nr) (0x28 + (nr) * 2)
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#define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2)
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#define LM85_REG_PWM(nr) (0x30 + (nr))
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#define LM85_REG_COMPANY 0x3e
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#define LM85_REG_VERSTEP 0x3f
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/* These are the recognized values for the above regs */
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#define LM85_COMPANY_NATIONAL 0x01
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#define LM85_COMPANY_ANALOG_DEV 0x41
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#define LM85_COMPANY_SMSC 0x5c
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#define LM85_VERSTEP_VMASK 0xf0
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#define LM85_VERSTEP_GENERIC 0x60
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#define LM85_VERSTEP_LM85C 0x60
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#define LM85_VERSTEP_LM85B 0x62
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#define LM85_VERSTEP_ADM1027 0x60
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#define LM85_VERSTEP_ADT7463 0x62
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#define LM85_VERSTEP_ADT7463C 0x6A
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#define LM85_VERSTEP_EMC6D100_A0 0x60
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#define LM85_VERSTEP_EMC6D100_A1 0x61
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#define LM85_VERSTEP_EMC6D102 0x65
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#define LM85_REG_CONFIG 0x40
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#define LM85_REG_ALARM1 0x41
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#define LM85_REG_ALARM2 0x42
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#define LM85_REG_VID 0x43
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/* Automated FAN control */
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#define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr))
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#define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr))
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#define LM85_REG_AFAN_SPIKE1 0x62
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#define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr))
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#define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr))
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#define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr))
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#define LM85_REG_AFAN_HYST1 0x6d
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#define LM85_REG_AFAN_HYST2 0x6e
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#define ADM1027_REG_EXTEND_ADC1 0x76
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#define ADM1027_REG_EXTEND_ADC2 0x77
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#define EMC6D100_REG_ALARM3 0x7d
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/* IN5, IN6 and IN7 */
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#define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5))
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#define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2)
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#define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2)
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#define EMC6D102_REG_EXTEND_ADC1 0x85
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#define EMC6D102_REG_EXTEND_ADC2 0x86
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#define EMC6D102_REG_EXTEND_ADC3 0x87
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#define EMC6D102_REG_EXTEND_ADC4 0x88
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/* Conversions. Rounding and limit checking is only done on the TO_REG
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variants. Note that you should be a bit careful with which arguments
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these macros are called: arguments may be evaluated more than once.
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*/
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/* IN are scaled acording to built-in resistors */
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static const int lm85_scaling[] = { /* .001 Volts */
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2500, 2250, 3300, 5000, 12000,
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3300, 1500, 1800 /*EMC6D100*/
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};
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#define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from))
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#define INS_TO_REG(n, val) \
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SENSORS_LIMIT(SCALE(val, lm85_scaling[n], 192), 0, 255)
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#define INSEXT_FROM_REG(n, val, ext) \
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SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n])
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#define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n])
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/* FAN speed is measured using 90kHz clock */
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static inline u16 FAN_TO_REG(unsigned long val)
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{
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if (!val)
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return 0xffff;
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return SENSORS_LIMIT(5400000 / val, 1, 0xfffe);
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}
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#define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \
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5400000 / (val))
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/* Temperature is reported in .001 degC increments */
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#define TEMP_TO_REG(val) \
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SENSORS_LIMIT(SCALE(val, 1000, 1), -127, 127)
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#define TEMPEXT_FROM_REG(val, ext) \
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SCALE(((val) << 4) + (ext), 16, 1000)
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#define TEMP_FROM_REG(val) ((val) * 1000)
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#define PWM_TO_REG(val) SENSORS_LIMIT(val, 0, 255)
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#define PWM_FROM_REG(val) (val)
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/* ZONEs have the following parameters:
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* Limit (low) temp, 1. degC
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* Hysteresis (below limit), 1. degC (0-15)
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* Range of speed control, .1 degC (2-80)
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* Critical (high) temp, 1. degC
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*
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* FAN PWMs have the following parameters:
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* Reference Zone, 1, 2, 3, etc.
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* Spinup time, .05 sec
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* PWM value at limit/low temp, 1 count
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* PWM Frequency, 1. Hz
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* PWM is Min or OFF below limit, flag
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* Invert PWM output, flag
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*
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* Some chips filter the temp, others the fan.
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* Filter constant (or disabled) .1 seconds
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*/
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/* These are the zone temperature range encodings in .001 degree C */
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static const int lm85_range_map[] = {
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2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000,
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13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000
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};
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static int RANGE_TO_REG(int range)
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{
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int i;
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if (range >= lm85_range_map[15])
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return 15;
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/* Find the closest match */
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for (i = 14; i >= 0; --i) {
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if (range >= lm85_range_map[i]) {
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if ((lm85_range_map[i + 1] - range) <
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(range - lm85_range_map[i]))
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return i + 1;
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return i;
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}
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}
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return 0;
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}
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#define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f]
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/* These are the PWM frequency encodings */
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static const int lm85_freq_map[] = { /* .1 Hz */
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100, 150, 230, 300, 380, 470, 620, 940
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};
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static int FREQ_TO_REG(int freq)
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{
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int i;
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if (freq >= lm85_freq_map[7])
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return 7;
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for (i = 0; i < 7; ++i)
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if (freq <= lm85_freq_map[i])
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break;
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return i;
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}
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#define FREQ_FROM_REG(val) lm85_freq_map[(val) & 0x07]
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/* Since we can't use strings, I'm abusing these numbers
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* to stand in for the following meanings:
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* 1 -- PWM responds to Zone 1
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* 2 -- PWM responds to Zone 2
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* 3 -- PWM responds to Zone 3
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* 23 -- PWM responds to the higher temp of Zone 2 or 3
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* 123 -- PWM responds to highest of Zone 1, 2, or 3
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* 0 -- PWM is always at 0% (ie, off)
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* -1 -- PWM is always at 100%
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* -2 -- PWM responds to manual control
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*/
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static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
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#define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5]
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static int ZONE_TO_REG(int zone)
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{
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int i;
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for (i = 0; i <= 7; ++i)
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if (zone == lm85_zone_map[i])
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break;
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if (i > 7) /* Not found. */
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i = 3; /* Always 100% */
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return i << 5;
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}
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#define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15)
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#define HYST_FROM_REG(val) ((val) * 1000)
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/* Chip sampling rates
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*
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* Some sensors are not updated more frequently than once per second
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* so it doesn't make sense to read them more often than that.
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* We cache the results and return the saved data if the driver
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* is called again before a second has elapsed.
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*
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* Also, there is significant configuration data for this chip
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* given the automatic PWM fan control that is possible. There
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* are about 47 bytes of config data to only 22 bytes of actual
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* readings. So, we keep the config data up to date in the cache
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* when it is written and only sample it once every 1 *minute*
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*/
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#define LM85_DATA_INTERVAL (HZ + HZ / 2)
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#define LM85_CONFIG_INTERVAL (1 * 60 * HZ)
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/* LM85 can automatically adjust fan speeds based on temperature
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* This structure encapsulates an entire Zone config. There are
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* three zones (one for each temperature input) on the lm85
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*/
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struct lm85_zone {
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s8 limit; /* Low temp limit */
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u8 hyst; /* Low limit hysteresis. (0-15) */
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u8 range; /* Temp range, encoded */
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s8 critical; /* "All fans ON" temp limit */
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u8 off_desired; /* Actual "off" temperature specified. Preserved
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* to prevent "drift" as other autofan control
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* values change.
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*/
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u8 max_desired; /* Actual "max" temperature specified. Preserved
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* to prevent "drift" as other autofan control
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* values change.
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*/
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};
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struct lm85_autofan {
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u8 config; /* Register value */
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u8 freq; /* PWM frequency, encoded */
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u8 min_pwm; /* Minimum PWM value, encoded */
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u8 min_off; /* Min PWM or OFF below "limit", flag */
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};
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/* For each registered chip, we need to keep some data in memory.
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The structure is dynamically allocated. */
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struct lm85_data {
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struct i2c_client client;
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struct device *hwmon_dev;
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enum chips type;
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struct mutex update_lock;
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int valid; /* !=0 if following fields are valid */
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unsigned long last_reading; /* In jiffies */
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unsigned long last_config; /* In jiffies */
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u8 in[8]; /* Register value */
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u8 in_max[8]; /* Register value */
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u8 in_min[8]; /* Register value */
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s8 temp[3]; /* Register value */
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s8 temp_min[3]; /* Register value */
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s8 temp_max[3]; /* Register value */
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u16 fan[4]; /* Register value */
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u16 fan_min[4]; /* Register value */
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u8 pwm[3]; /* Register value */
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u8 temp_ext[3]; /* Decoded values */
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u8 in_ext[8]; /* Decoded values */
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u8 vid; /* Register value */
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u8 vrm; /* VRM version */
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u32 alarms; /* Register encoding, combined */
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struct lm85_autofan autofan[3];
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struct lm85_zone zone[3];
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};
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static int lm85_attach_adapter(struct i2c_adapter *adapter);
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static int lm85_detect(struct i2c_adapter *adapter, int address,
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int kind);
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static int lm85_detach_client(struct i2c_client *client);
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static int lm85_read_value(struct i2c_client *client, u8 reg);
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static void lm85_write_value(struct i2c_client *client, u8 reg, int value);
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static struct lm85_data *lm85_update_device(struct device *dev);
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static struct i2c_driver lm85_driver = {
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.driver = {
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.name = "lm85",
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},
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.attach_adapter = lm85_attach_adapter,
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.detach_client = lm85_detach_client,
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};
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/* 4 Fans */
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static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct lm85_data *data = lm85_update_device(dev);
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return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr]));
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}
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static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct lm85_data *data = lm85_update_device(dev);
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return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr]));
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}
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static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct lm85_data *data = i2c_get_clientdata(client);
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unsigned long val = simple_strtoul(buf, NULL, 10);
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mutex_lock(&data->update_lock);
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data->fan_min[nr] = FAN_TO_REG(val);
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lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
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mutex_unlock(&data->update_lock);
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return count;
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}
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#define show_fan_offset(offset) \
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static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
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show_fan, NULL, offset - 1); \
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static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
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show_fan_min, set_fan_min, offset - 1)
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show_fan_offset(1);
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show_fan_offset(2);
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show_fan_offset(3);
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show_fan_offset(4);
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/* vid, vrm, alarms */
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static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct lm85_data *data = lm85_update_device(dev);
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int vid;
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if (data->type == adt7463 && (data->vid & 0x80)) {
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/* 6-pin VID (VRM 10) */
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vid = vid_from_reg(data->vid & 0x3f, data->vrm);
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} else {
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/* 5-pin VID (VRM 9) */
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vid = vid_from_reg(data->vid & 0x1f, data->vrm);
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}
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return sprintf(buf, "%d\n", vid);
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}
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static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
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static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct lm85_data *data = dev_get_drvdata(dev);
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return sprintf(buf, "%ld\n", (long) data->vrm);
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}
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static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct lm85_data *data = dev_get_drvdata(dev);
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data->vrm = simple_strtoul(buf, NULL, 10);
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return count;
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}
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static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
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static ssize_t show_alarms_reg(struct device *dev, struct device_attribute
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*attr, char *buf)
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{
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struct lm85_data *data = lm85_update_device(dev);
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return sprintf(buf, "%u\n", data->alarms);
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}
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static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
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static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct lm85_data *data = lm85_update_device(dev);
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return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
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}
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static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
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static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
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static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
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static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
|
|
static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
|
|
static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18);
|
|
static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16);
|
|
static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17);
|
|
static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
|
|
static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
|
|
static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
|
|
static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6);
|
|
static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15);
|
|
static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10);
|
|
static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11);
|
|
static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12);
|
|
static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13);
|
|
|
|
/* pwm */
|
|
|
|
static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
|
|
}
|
|
|
|
static ssize_t set_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 lm85_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->pwm[nr] = PWM_TO_REG(val);
|
|
lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
|
|
*attr, char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
int pwm_zone, enable;
|
|
|
|
pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
|
|
switch (pwm_zone) {
|
|
case -1: /* PWM is always at 100% */
|
|
enable = 0;
|
|
break;
|
|
case 0: /* PWM is always at 0% */
|
|
case -2: /* PWM responds to manual control */
|
|
enable = 1;
|
|
break;
|
|
default: /* PWM in automatic mode */
|
|
enable = 2;
|
|
}
|
|
return sprintf(buf, "%d\n", enable);
|
|
}
|
|
|
|
static ssize_t set_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 lm85_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
u8 config;
|
|
|
|
switch (val) {
|
|
case 0:
|
|
config = 3;
|
|
break;
|
|
case 1:
|
|
config = 7;
|
|
break;
|
|
case 2:
|
|
/* Here we have to choose arbitrarily one of the 5 possible
|
|
configurations; I go for the safest */
|
|
config = 6;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->autofan[nr].config = lm85_read_value(client,
|
|
LM85_REG_AFAN_CONFIG(nr));
|
|
data->autofan[nr].config = (data->autofan[nr].config & ~0xe0)
|
|
| (config << 5);
|
|
lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
|
|
data->autofan[nr].config);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
#define show_pwm_reg(offset) \
|
|
static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
|
|
show_pwm, set_pwm, offset - 1); \
|
|
static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
|
|
show_pwm_enable, set_pwm_enable, offset - 1)
|
|
|
|
show_pwm_reg(1);
|
|
show_pwm_reg(2);
|
|
show_pwm_reg(3);
|
|
|
|
/* Voltages */
|
|
|
|
static ssize_t show_in(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr],
|
|
data->in_ext[nr]));
|
|
}
|
|
|
|
static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr]));
|
|
}
|
|
|
|
static ssize_t set_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 lm85_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->in_min[nr] = INS_TO_REG(nr, val);
|
|
lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
|
|
}
|
|
|
|
static ssize_t set_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 lm85_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->in_max[nr] = INS_TO_REG(nr, val);
|
|
lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
#define show_in_reg(offset) \
|
|
static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
|
|
show_in, NULL, offset); \
|
|
static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
|
|
show_in_min, set_in_min, offset); \
|
|
static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
|
|
show_in_max, set_in_max, offset)
|
|
|
|
show_in_reg(0);
|
|
show_in_reg(1);
|
|
show_in_reg(2);
|
|
show_in_reg(3);
|
|
show_in_reg(4);
|
|
show_in_reg(5);
|
|
show_in_reg(6);
|
|
show_in_reg(7);
|
|
|
|
/* Temps */
|
|
|
|
static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr],
|
|
data->temp_ext[nr]));
|
|
}
|
|
|
|
static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
|
|
}
|
|
|
|
static ssize_t set_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 lm85_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->temp_min[nr] = TEMP_TO_REG(val);
|
|
lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
|
|
}
|
|
|
|
static ssize_t set_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 lm85_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->temp_max[nr] = TEMP_TO_REG(val);
|
|
lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
#define show_temp_reg(offset) \
|
|
static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
|
|
show_temp, NULL, offset - 1); \
|
|
static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
|
|
show_temp_min, set_temp_min, offset - 1); \
|
|
static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
|
|
show_temp_max, set_temp_max, offset - 1);
|
|
|
|
show_temp_reg(1);
|
|
show_temp_reg(2);
|
|
show_temp_reg(3);
|
|
|
|
|
|
/* Automatic PWM control */
|
|
|
|
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 lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config));
|
|
}
|
|
|
|
static ssize_t set_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 lm85_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
|
|
| ZONE_TO_REG(val);
|
|
lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
|
|
data->autofan[nr].config);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_pwm_auto_pwm_min(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
|
|
}
|
|
|
|
static ssize_t set_pwm_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 lm85_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->autofan[nr].min_pwm = PWM_TO_REG(val);
|
|
lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
|
|
data->autofan[nr].min_pwm);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_pwm_auto_pwm_minctl(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", data->autofan[nr].min_off);
|
|
}
|
|
|
|
static ssize_t set_pwm_auto_pwm_minctl(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 lm85_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
u8 tmp;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->autofan[nr].min_off = val;
|
|
tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
|
|
tmp &= ~(0x20 << nr);
|
|
if (data->autofan[nr].min_off)
|
|
tmp |= 0x20 << nr;
|
|
lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_pwm_auto_pwm_freq(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
|
|
}
|
|
|
|
static ssize_t set_pwm_auto_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 lm85_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->autofan[nr].freq = FREQ_TO_REG(val);
|
|
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
|
|
(data->zone[nr].range << 4)
|
|
| data->autofan[nr].freq);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
#define pwm_auto(offset) \
|
|
static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \
|
|
S_IRUGO | S_IWUSR, show_pwm_auto_channels, \
|
|
set_pwm_auto_channels, offset - 1); \
|
|
static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \
|
|
S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \
|
|
set_pwm_auto_pwm_min, offset - 1); \
|
|
static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \
|
|
S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \
|
|
set_pwm_auto_pwm_minctl, offset - 1); \
|
|
static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_freq, \
|
|
S_IRUGO | S_IWUSR, show_pwm_auto_pwm_freq, \
|
|
set_pwm_auto_pwm_freq, offset - 1);
|
|
|
|
pwm_auto(1);
|
|
pwm_auto(2);
|
|
pwm_auto(3);
|
|
|
|
/* Temperature settings for automatic PWM control */
|
|
|
|
static ssize_t show_temp_auto_temp_off(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
|
|
HYST_FROM_REG(data->zone[nr].hyst));
|
|
}
|
|
|
|
static ssize_t set_temp_auto_temp_off(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 lm85_data *data = i2c_get_clientdata(client);
|
|
int min;
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
min = TEMP_FROM_REG(data->zone[nr].limit);
|
|
data->zone[nr].off_desired = TEMP_TO_REG(val);
|
|
data->zone[nr].hyst = HYST_TO_REG(min - val);
|
|
if (nr == 0 || nr == 1) {
|
|
lm85_write_value(client, LM85_REG_AFAN_HYST1,
|
|
(data->zone[0].hyst << 4)
|
|
| data->zone[1].hyst);
|
|
} else {
|
|
lm85_write_value(client, LM85_REG_AFAN_HYST2,
|
|
(data->zone[2].hyst << 4));
|
|
}
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_temp_auto_temp_min(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit));
|
|
}
|
|
|
|
static ssize_t set_temp_auto_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 lm85_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->zone[nr].limit = TEMP_TO_REG(val);
|
|
lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
|
|
data->zone[nr].limit);
|
|
|
|
/* Update temp_auto_max and temp_auto_range */
|
|
data->zone[nr].range = RANGE_TO_REG(
|
|
TEMP_FROM_REG(data->zone[nr].max_desired) -
|
|
TEMP_FROM_REG(data->zone[nr].limit));
|
|
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
|
|
((data->zone[nr].range & 0x0f) << 4)
|
|
| (data->autofan[nr].freq & 0x07));
|
|
|
|
/* Update temp_auto_hyst and temp_auto_off */
|
|
data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
|
|
data->zone[nr].limit) - TEMP_FROM_REG(
|
|
data->zone[nr].off_desired));
|
|
if (nr == 0 || nr == 1) {
|
|
lm85_write_value(client, LM85_REG_AFAN_HYST1,
|
|
(data->zone[0].hyst << 4)
|
|
| data->zone[1].hyst);
|
|
} else {
|
|
lm85_write_value(client, LM85_REG_AFAN_HYST2,
|
|
(data->zone[2].hyst << 4));
|
|
}
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_temp_auto_temp_max(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
|
|
RANGE_FROM_REG(data->zone[nr].range));
|
|
}
|
|
|
|
static ssize_t set_temp_auto_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 lm85_data *data = i2c_get_clientdata(client);
|
|
int min;
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
min = TEMP_FROM_REG(data->zone[nr].limit);
|
|
data->zone[nr].max_desired = TEMP_TO_REG(val);
|
|
data->zone[nr].range = RANGE_TO_REG(
|
|
val - min);
|
|
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
|
|
((data->zone[nr].range & 0x0f) << 4)
|
|
| (data->autofan[nr].freq & 0x07));
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_temp_auto_temp_crit(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
struct lm85_data *data = lm85_update_device(dev);
|
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical));
|
|
}
|
|
|
|
static ssize_t set_temp_auto_temp_crit(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 lm85_data *data = i2c_get_clientdata(client);
|
|
long val = simple_strtol(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->zone[nr].critical = TEMP_TO_REG(val);
|
|
lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
|
|
data->zone[nr].critical);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
#define temp_auto(offset) \
|
|
static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \
|
|
S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \
|
|
set_temp_auto_temp_off, offset - 1); \
|
|
static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \
|
|
S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \
|
|
set_temp_auto_temp_min, offset - 1); \
|
|
static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \
|
|
S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \
|
|
set_temp_auto_temp_max, offset - 1); \
|
|
static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \
|
|
S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \
|
|
set_temp_auto_temp_crit, offset - 1);
|
|
|
|
temp_auto(1);
|
|
temp_auto(2);
|
|
temp_auto(3);
|
|
|
|
static int lm85_attach_adapter(struct i2c_adapter *adapter)
|
|
{
|
|
if (!(adapter->class & I2C_CLASS_HWMON))
|
|
return 0;
|
|
return i2c_probe(adapter, &addr_data, lm85_detect);
|
|
}
|
|
|
|
static struct attribute *lm85_attributes[] = {
|
|
&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_alarm.dev_attr.attr,
|
|
&sensor_dev_attr_fan2_alarm.dev_attr.attr,
|
|
&sensor_dev_attr_fan3_alarm.dev_attr.attr,
|
|
&sensor_dev_attr_fan4_alarm.dev_attr.attr,
|
|
|
|
&sensor_dev_attr_pwm1.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_enable.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3_enable.dev_attr.attr,
|
|
|
|
&sensor_dev_attr_in0_input.dev_attr.attr,
|
|
&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_in0_min.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_in0_max.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_in0_alarm.dev_attr.attr,
|
|
&sensor_dev_attr_in1_alarm.dev_attr.attr,
|
|
&sensor_dev_attr_in2_alarm.dev_attr.attr,
|
|
&sensor_dev_attr_in3_alarm.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_alarm.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_alarm.dev_attr.attr,
|
|
&sensor_dev_attr_temp3_alarm.dev_attr.attr,
|
|
&sensor_dev_attr_temp1_fault.dev_attr.attr,
|
|
&sensor_dev_attr_temp3_fault.dev_attr.attr,
|
|
|
|
&sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3_auto_channels.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_auto_pwm_freq.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_auto_pwm_freq.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3_auto_pwm_freq.dev_attr.attr,
|
|
|
|
&sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
|
|
&sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr,
|
|
&sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr,
|
|
&sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr,
|
|
&sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr,
|
|
&sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr,
|
|
&sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr,
|
|
&sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr,
|
|
|
|
&dev_attr_vrm.attr,
|
|
&dev_attr_cpu0_vid.attr,
|
|
&dev_attr_alarms.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group lm85_group = {
|
|
.attrs = lm85_attributes,
|
|
};
|
|
|
|
static struct attribute *lm85_attributes_in4[] = {
|
|
&sensor_dev_attr_in4_input.dev_attr.attr,
|
|
&sensor_dev_attr_in4_min.dev_attr.attr,
|
|
&sensor_dev_attr_in4_max.dev_attr.attr,
|
|
&sensor_dev_attr_in4_alarm.dev_attr.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group lm85_group_in4 = {
|
|
.attrs = lm85_attributes_in4,
|
|
};
|
|
|
|
static struct attribute *lm85_attributes_in567[] = {
|
|
&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_in5_min.dev_attr.attr,
|
|
&sensor_dev_attr_in6_min.dev_attr.attr,
|
|
&sensor_dev_attr_in7_min.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_in5_alarm.dev_attr.attr,
|
|
&sensor_dev_attr_in6_alarm.dev_attr.attr,
|
|
&sensor_dev_attr_in7_alarm.dev_attr.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group lm85_group_in567 = {
|
|
.attrs = lm85_attributes_in567,
|
|
};
|
|
|
|
static void lm85_init_client(struct i2c_client *client)
|
|
{
|
|
int value;
|
|
|
|
/* Start monitoring if needed */
|
|
value = lm85_read_value(client, LM85_REG_CONFIG);
|
|
if (!(value & 0x01)) {
|
|
dev_info(&client->dev, "Starting monitoring\n");
|
|
lm85_write_value(client, LM85_REG_CONFIG, value | 0x01);
|
|
}
|
|
|
|
/* Warn about unusual configuration bits */
|
|
if (value & 0x02)
|
|
dev_warn(&client->dev, "Device configuration is locked\n");
|
|
if (!(value & 0x04))
|
|
dev_warn(&client->dev, "Device is not ready\n");
|
|
}
|
|
|
|
static int lm85_detect(struct i2c_adapter *adapter, int address,
|
|
int kind)
|
|
{
|
|
int company, verstep;
|
|
struct i2c_client *client;
|
|
struct lm85_data *data;
|
|
int err = 0;
|
|
const char *type_name;
|
|
|
|
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
|
|
/* We need to be able to do byte I/O */
|
|
goto ERROR0;
|
|
}
|
|
|
|
/* 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 lm85_{read,write}_value. */
|
|
|
|
if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
|
|
err = -ENOMEM;
|
|
goto ERROR0;
|
|
}
|
|
|
|
client = &data->client;
|
|
i2c_set_clientdata(client, data);
|
|
client->addr = address;
|
|
client->adapter = adapter;
|
|
client->driver = &lm85_driver;
|
|
|
|
/* Now, we do the remaining detection. */
|
|
|
|
company = lm85_read_value(client, LM85_REG_COMPANY);
|
|
verstep = lm85_read_value(client, LM85_REG_VERSTEP);
|
|
|
|
dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
|
|
" COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
|
|
i2c_adapter_id(client->adapter), client->addr,
|
|
company, verstep);
|
|
|
|
/* If auto-detecting, Determine the chip type. */
|
|
if (kind <= 0) {
|
|
dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
|
|
i2c_adapter_id(adapter), address);
|
|
if (company == LM85_COMPANY_NATIONAL
|
|
&& verstep == LM85_VERSTEP_LM85C) {
|
|
kind = lm85c;
|
|
} else if (company == LM85_COMPANY_NATIONAL
|
|
&& verstep == LM85_VERSTEP_LM85B) {
|
|
kind = lm85b;
|
|
} else if (company == LM85_COMPANY_NATIONAL
|
|
&& (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
|
|
dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
|
|
" Defaulting to LM85.\n", verstep);
|
|
kind = any_chip;
|
|
} else if (company == LM85_COMPANY_ANALOG_DEV
|
|
&& verstep == LM85_VERSTEP_ADM1027) {
|
|
kind = adm1027;
|
|
} else if (company == LM85_COMPANY_ANALOG_DEV
|
|
&& (verstep == LM85_VERSTEP_ADT7463
|
|
|| verstep == LM85_VERSTEP_ADT7463C)) {
|
|
kind = adt7463;
|
|
} else if (company == LM85_COMPANY_ANALOG_DEV
|
|
&& (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
|
|
dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
|
|
" Defaulting to Generic LM85.\n", verstep);
|
|
kind = any_chip;
|
|
} else if (company == LM85_COMPANY_SMSC
|
|
&& (verstep == LM85_VERSTEP_EMC6D100_A0
|
|
|| verstep == LM85_VERSTEP_EMC6D100_A1)) {
|
|
/* Unfortunately, we can't tell a '100 from a '101
|
|
* from the registers. Since a '101 is a '100
|
|
* in a package with fewer pins and therefore no
|
|
* 3.3V, 1.5V or 1.8V inputs, perhaps if those
|
|
* inputs read 0, then it's a '101.
|
|
*/
|
|
kind = emc6d100;
|
|
} else if (company == LM85_COMPANY_SMSC
|
|
&& verstep == LM85_VERSTEP_EMC6D102) {
|
|
kind = emc6d102;
|
|
} else if (company == LM85_COMPANY_SMSC
|
|
&& (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
|
|
dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
|
|
dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
|
|
" Defaulting to Generic LM85.\n", verstep);
|
|
kind = any_chip;
|
|
} else if (kind == any_chip
|
|
&& (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
|
|
dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
|
|
/* Leave kind as "any_chip" */
|
|
} else {
|
|
dev_dbg(&adapter->dev, "Autodetection failed\n");
|
|
/* Not an LM85... */
|
|
if (kind == any_chip) { /* User used force=x,y */
|
|
dev_err(&adapter->dev, "Generic LM85 Version 6 not"
|
|
" found at %d,0x%02x. Try force_lm85c.\n",
|
|
i2c_adapter_id(adapter), address);
|
|
}
|
|
err = 0;
|
|
goto ERROR1;
|
|
}
|
|
}
|
|
|
|
/* Fill in the chip specific driver values */
|
|
switch (kind) {
|
|
case lm85b:
|
|
type_name = "lm85b";
|
|
break;
|
|
case lm85c:
|
|
type_name = "lm85c";
|
|
break;
|
|
case adm1027:
|
|
type_name = "adm1027";
|
|
break;
|
|
case adt7463:
|
|
type_name = "adt7463";
|
|
break;
|
|
case emc6d100:
|
|
type_name = "emc6d100";
|
|
break;
|
|
case emc6d102:
|
|
type_name = "emc6d102";
|
|
break;
|
|
default:
|
|
type_name = "lm85";
|
|
}
|
|
strlcpy(client->name, type_name, I2C_NAME_SIZE);
|
|
|
|
/* Fill in the remaining client fields */
|
|
data->type = kind;
|
|
mutex_init(&data->update_lock);
|
|
|
|
/* Tell the I2C layer a new client has arrived */
|
|
err = i2c_attach_client(client);
|
|
if (err)
|
|
goto ERROR1;
|
|
|
|
/* Set the VRM version */
|
|
data->vrm = vid_which_vrm();
|
|
|
|
/* Initialize the LM85 chip */
|
|
lm85_init_client(client);
|
|
|
|
/* Register sysfs hooks */
|
|
err = sysfs_create_group(&client->dev.kobj, &lm85_group);
|
|
if (err)
|
|
goto ERROR2;
|
|
|
|
/* The ADT7463 has an optional VRM 10 mode where pin 21 is used
|
|
as a sixth digital VID input rather than an analog input. */
|
|
data->vid = lm85_read_value(client, LM85_REG_VID);
|
|
if (!(kind == adt7463 && (data->vid & 0x80)))
|
|
if ((err = sysfs_create_group(&client->dev.kobj,
|
|
&lm85_group_in4)))
|
|
goto ERROR3;
|
|
|
|
/* The EMC6D100 has 3 additional voltage inputs */
|
|
if (kind == emc6d100)
|
|
if ((err = sysfs_create_group(&client->dev.kobj,
|
|
&lm85_group_in567)))
|
|
goto ERROR3;
|
|
|
|
data->hwmon_dev = hwmon_device_register(&client->dev);
|
|
if (IS_ERR(data->hwmon_dev)) {
|
|
err = PTR_ERR(data->hwmon_dev);
|
|
goto ERROR3;
|
|
}
|
|
|
|
return 0;
|
|
|
|
/* Error out and cleanup code */
|
|
ERROR3:
|
|
sysfs_remove_group(&client->dev.kobj, &lm85_group);
|
|
sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
|
|
if (kind == emc6d100)
|
|
sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
|
|
ERROR2:
|
|
i2c_detach_client(client);
|
|
ERROR1:
|
|
kfree(data);
|
|
ERROR0:
|
|
return err;
|
|
}
|
|
|
|
static int lm85_detach_client(struct i2c_client *client)
|
|
{
|
|
struct lm85_data *data = i2c_get_clientdata(client);
|
|
hwmon_device_unregister(data->hwmon_dev);
|
|
sysfs_remove_group(&client->dev.kobj, &lm85_group);
|
|
sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
|
|
if (data->type == emc6d100)
|
|
sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
|
|
i2c_detach_client(client);
|
|
kfree(data);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int lm85_read_value(struct i2c_client *client, u8 reg)
|
|
{
|
|
int res;
|
|
|
|
/* What size location is it? */
|
|
switch (reg) {
|
|
case LM85_REG_FAN(0): /* Read WORD data */
|
|
case LM85_REG_FAN(1):
|
|
case LM85_REG_FAN(2):
|
|
case LM85_REG_FAN(3):
|
|
case LM85_REG_FAN_MIN(0):
|
|
case LM85_REG_FAN_MIN(1):
|
|
case LM85_REG_FAN_MIN(2):
|
|
case LM85_REG_FAN_MIN(3):
|
|
case LM85_REG_ALARM1: /* Read both bytes at once */
|
|
res = i2c_smbus_read_byte_data(client, reg) & 0xff;
|
|
res |= i2c_smbus_read_byte_data(client, reg + 1) << 8;
|
|
break;
|
|
default: /* Read BYTE data */
|
|
res = i2c_smbus_read_byte_data(client, reg);
|
|
break;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static void lm85_write_value(struct i2c_client *client, u8 reg, int value)
|
|
{
|
|
switch (reg) {
|
|
case LM85_REG_FAN(0): /* Write WORD data */
|
|
case LM85_REG_FAN(1):
|
|
case LM85_REG_FAN(2):
|
|
case LM85_REG_FAN(3):
|
|
case LM85_REG_FAN_MIN(0):
|
|
case LM85_REG_FAN_MIN(1):
|
|
case LM85_REG_FAN_MIN(2):
|
|
case LM85_REG_FAN_MIN(3):
|
|
/* NOTE: ALARM is read only, so not included here */
|
|
i2c_smbus_write_byte_data(client, reg, value & 0xff);
|
|
i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
|
|
break;
|
|
default: /* Write BYTE data */
|
|
i2c_smbus_write_byte_data(client, reg, value);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static struct lm85_data *lm85_update_device(struct device *dev)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct lm85_data *data = i2c_get_clientdata(client);
|
|
int i;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
if (!data->valid ||
|
|
time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) {
|
|
/* Things that change quickly */
|
|
dev_dbg(&client->dev, "Reading sensor values\n");
|
|
|
|
/* Have to read extended bits first to "freeze" the
|
|
* more significant bits that are read later.
|
|
* There are 2 additional resolution bits per channel and we
|
|
* have room for 4, so we shift them to the left.
|
|
*/
|
|
if (data->type == adm1027 || data->type == adt7463) {
|
|
int ext1 = lm85_read_value(client,
|
|
ADM1027_REG_EXTEND_ADC1);
|
|
int ext2 = lm85_read_value(client,
|
|
ADM1027_REG_EXTEND_ADC2);
|
|
int val = (ext1 << 8) + ext2;
|
|
|
|
for (i = 0; i <= 4; i++)
|
|
data->in_ext[i] =
|
|
((val >> (i * 2)) & 0x03) << 2;
|
|
|
|
for (i = 0; i <= 2; i++)
|
|
data->temp_ext[i] =
|
|
(val >> ((i + 4) * 2)) & 0x0c;
|
|
}
|
|
|
|
data->vid = lm85_read_value(client, LM85_REG_VID);
|
|
|
|
for (i = 0; i <= 3; ++i) {
|
|
data->in[i] =
|
|
lm85_read_value(client, LM85_REG_IN(i));
|
|
data->fan[i] =
|
|
lm85_read_value(client, LM85_REG_FAN(i));
|
|
}
|
|
|
|
if (!(data->type == adt7463 && (data->vid & 0x80))) {
|
|
data->in[4] = lm85_read_value(client,
|
|
LM85_REG_IN(4));
|
|
}
|
|
|
|
for (i = 0; i <= 2; ++i) {
|
|
data->temp[i] =
|
|
lm85_read_value(client, LM85_REG_TEMP(i));
|
|
data->pwm[i] =
|
|
lm85_read_value(client, LM85_REG_PWM(i));
|
|
}
|
|
|
|
data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
|
|
|
|
if (data->type == emc6d100) {
|
|
/* Three more voltage sensors */
|
|
for (i = 5; i <= 7; ++i) {
|
|
data->in[i] = lm85_read_value(client,
|
|
EMC6D100_REG_IN(i));
|
|
}
|
|
/* More alarm bits */
|
|
data->alarms |= lm85_read_value(client,
|
|
EMC6D100_REG_ALARM3) << 16;
|
|
} else if (data->type == emc6d102) {
|
|
/* Have to read LSB bits after the MSB ones because
|
|
the reading of the MSB bits has frozen the
|
|
LSBs (backward from the ADM1027).
|
|
*/
|
|
int ext1 = lm85_read_value(client,
|
|
EMC6D102_REG_EXTEND_ADC1);
|
|
int ext2 = lm85_read_value(client,
|
|
EMC6D102_REG_EXTEND_ADC2);
|
|
int ext3 = lm85_read_value(client,
|
|
EMC6D102_REG_EXTEND_ADC3);
|
|
int ext4 = lm85_read_value(client,
|
|
EMC6D102_REG_EXTEND_ADC4);
|
|
data->in_ext[0] = ext3 & 0x0f;
|
|
data->in_ext[1] = ext4 & 0x0f;
|
|
data->in_ext[2] = ext4 >> 4;
|
|
data->in_ext[3] = ext3 >> 4;
|
|
data->in_ext[4] = ext2 >> 4;
|
|
|
|
data->temp_ext[0] = ext1 & 0x0f;
|
|
data->temp_ext[1] = ext2 & 0x0f;
|
|
data->temp_ext[2] = ext1 >> 4;
|
|
}
|
|
|
|
data->last_reading = jiffies;
|
|
} /* last_reading */
|
|
|
|
if (!data->valid ||
|
|
time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) {
|
|
/* Things that don't change often */
|
|
dev_dbg(&client->dev, "Reading config values\n");
|
|
|
|
for (i = 0; i <= 3; ++i) {
|
|
data->in_min[i] =
|
|
lm85_read_value(client, LM85_REG_IN_MIN(i));
|
|
data->in_max[i] =
|
|
lm85_read_value(client, LM85_REG_IN_MAX(i));
|
|
data->fan_min[i] =
|
|
lm85_read_value(client, LM85_REG_FAN_MIN(i));
|
|
}
|
|
|
|
if (!(data->type == adt7463 && (data->vid & 0x80))) {
|
|
data->in_min[4] = lm85_read_value(client,
|
|
LM85_REG_IN_MIN(4));
|
|
data->in_max[4] = lm85_read_value(client,
|
|
LM85_REG_IN_MAX(4));
|
|
}
|
|
|
|
if (data->type == emc6d100) {
|
|
for (i = 5; i <= 7; ++i) {
|
|
data->in_min[i] = lm85_read_value(client,
|
|
EMC6D100_REG_IN_MIN(i));
|
|
data->in_max[i] = lm85_read_value(client,
|
|
EMC6D100_REG_IN_MAX(i));
|
|
}
|
|
}
|
|
|
|
for (i = 0; i <= 2; ++i) {
|
|
int val;
|
|
|
|
data->temp_min[i] =
|
|
lm85_read_value(client, LM85_REG_TEMP_MIN(i));
|
|
data->temp_max[i] =
|
|
lm85_read_value(client, LM85_REG_TEMP_MAX(i));
|
|
|
|
data->autofan[i].config =
|
|
lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
|
|
val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
|
|
data->autofan[i].freq = val & 0x07;
|
|
data->zone[i].range = val >> 4;
|
|
data->autofan[i].min_pwm =
|
|
lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
|
|
data->zone[i].limit =
|
|
lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
|
|
data->zone[i].critical =
|
|
lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
|
|
}
|
|
|
|
i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
|
|
data->autofan[0].min_off = (i & 0x20) != 0;
|
|
data->autofan[1].min_off = (i & 0x40) != 0;
|
|
data->autofan[2].min_off = (i & 0x80) != 0;
|
|
|
|
i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
|
|
data->zone[0].hyst = i >> 4;
|
|
data->zone[1].hyst = i & 0x0f;
|
|
|
|
i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
|
|
data->zone[2].hyst = i >> 4;
|
|
|
|
data->last_config = jiffies;
|
|
} /* last_config */
|
|
|
|
data->valid = 1;
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
return data;
|
|
}
|
|
|
|
|
|
static int __init sm_lm85_init(void)
|
|
{
|
|
return i2c_add_driver(&lm85_driver);
|
|
}
|
|
|
|
static void __exit sm_lm85_exit(void)
|
|
{
|
|
i2c_del_driver(&lm85_driver);
|
|
}
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
|
|
"Margit Schubert-While <margitsw@t-online.de>, "
|
|
"Justin Thiessen <jthiessen@penguincomputing.com>");
|
|
MODULE_DESCRIPTION("LM85-B, LM85-C driver");
|
|
|
|
module_init(sm_lm85_init);
|
|
module_exit(sm_lm85_exit);
|