litmus-rt.git - The LITMUS^RT kernel.

diff options

Diffstat (limited to 'drivers/hwmon/lm77.c')

-rw-r--r--

1 files changed, 2 insertions, 3 deletions

 static int lm77_probe(struct i2c_client *client,
                       const struct i2c_device_id *id);
-static int lm77_detect(struct i2c_client *client, int kind,
+static int lm77_detect(struct i2c_client *client, struct i2c_board_info *info);
-                       struct i2c_board_info *info);
 static void lm77_init_client(struct i2c_client *client);
 static int lm77_remove(struct i2c_client *client);
 static u16 lm77_read_value(struct i2c_client *client, u8 reg);
 };
 /* Return 0 if detection is successful, -ENODEV otherwise */
-static int lm77_detect(struct i2c_client *new_client, int kind,
+static int lm77_detect(struct i2c_client *new_client,
                        struct i2c_board_info *info)
 {
         struct i2c_adapter *adapter = new_client->adapter;

/* lm85.c - Part of lm_sensors, Linux kernel modules for hardware monitoring Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com> Copyright (c) 2003 Margit Schubert-While <margitsw@t-online.de> Copyright (c) 2004 Justin Thiessen <jthiessen@penguincomputing.com> Copyright (C) 2007--2009 Jean Delvare <khali@linux-fr.org> Chip details at <http://www.national.com/ds/LM/LM85.pdf> 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/jiffies.h> #include <linux/i2c.h> #include <linux/hwmon.h> #include <linux/hwmon-vid.h> #include <linux/hwmon-sysfs.h> #include <linux/err.h> #include <linux/mutex.h> /* Addresses to scan */ static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; /* Insmod parameters */ I2C_CLIENT_INSMOD_7(lm85b, lm85c, adm1027, adt7463, adt7468, emc6d100, emc6d102); /* The LM85 registers */ #define LM85_REG_IN(nr) (0x20 + (nr)) #define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2) #define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2) #define LM85_REG_TEMP(nr) (0x25 + (nr)) #define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2) #define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2) /* Fan speeds are LSB, MSB (2 bytes) */ #define LM85_REG_FAN(nr) (0x28 + (nr) * 2) #define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2) #define LM85_REG_PWM(nr) (0x30 + (nr)) #define LM85_REG_COMPANY 0x3e #define LM85_REG_VERSTEP 0x3f #define ADT7468_REG_CFG5 0x7c #define ADT7468_OFF64 0x01 #define IS_ADT7468_OFF64(data) \ ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64)) /* These are the recognized values for the above regs */ #define LM85_COMPANY_NATIONAL 0x01 #define LM85_COMPANY_ANALOG_DEV 0x41 #define LM85_COMPANY_SMSC 0x5c #define LM85_VERSTEP_VMASK 0xf0 #define LM85_VERSTEP_GENERIC 0x60 #define LM85_VERSTEP_GENERIC2 0x70 #define LM85_VERSTEP_LM85C 0x60 #define LM85_VERSTEP_LM85B 0x62 #define LM85_VERSTEP_LM96000_1 0x68 #define LM85_VERSTEP_LM96000_2 0x69 #define LM85_VERSTEP_ADM1027 0x60 #define LM85_VERSTEP_ADT7463 0x62 #define LM85_VERSTEP_ADT7463C 0x6A #define LM85_VERSTEP_ADT7468_1 0x71 #define LM85_VERSTEP_ADT7468_2 0x72 #define LM85_VERSTEP_EMC6D100_A0 0x60 #define LM85_VERSTEP_EMC6D100_A1 0x61 #define LM85_VERSTEP_EMC6D102 0x65 #define LM85_REG_CONFIG 0x40 #define LM85_REG_ALARM1 0x41 #define LM85_REG_ALARM2 0x42 #define LM85_REG_VID 0x43 /* Automated FAN control */ #define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr)) #define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr)) #define LM85_REG_AFAN_SPIKE1 0x62 #define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr)) #define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr)) #define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr)) #define LM85_REG_AFAN_HYST1 0x6d #define LM85_REG_AFAN_HYST2 0x6e #define ADM1027_REG_EXTEND_ADC1 0x76 #define ADM1027_REG_EXTEND_ADC2 0x77 #define EMC6D100_REG_ALARM3 0x7d /* IN5, IN6 and IN7 */ #define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5)) #define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2) #define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2) #define EMC6D102_REG_EXTEND_ADC1 0x85 #define EMC6D102_REG_EXTEND_ADC2 0x86 #define EMC6D102_REG_EXTEND_ADC3 0x87 #define EMC6D102_REG_EXTEND_ADC4 0x88 /* Conversions. Rounding and limit checking is only done on the TO_REG variants. Note that you should be a bit careful with which arguments these macros are called: arguments may be evaluated more than once. */ /* IN are scaled acording to built-in resistors */ static const int lm85_scaling[] = { /* .001 Volts */ 2500, 2250, 3300, 5000, 12000, 3300, 1500, 1800 /*EMC6D100*/ }; #define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from)) #define INS_TO_REG(n, val) \ SENSORS_LIMIT(SCALE(val, lm85_scaling[n], 192), 0, 255) #define INSEXT_FROM_REG(n, val, ext) \ SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n]) #define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n]) /* FAN speed is measured using 90kHz clock */ static inline u16 FAN_TO_REG(unsigned long val) { if (!val) return 0xffff; return SENSORS_LIMIT(5400000 / val, 1, 0xfffe); } #define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ 5400000 / (val)) /* Temperature is reported in .001 degC increments */ #define TEMP_TO_REG(val) \ SENSORS_LIMIT(SCALE(val, 1000, 1), -127, 127) #define TEMPEXT_FROM_REG(val, ext) \ SCALE(((val) << 4) + (ext), 16, 1000) #define TEMP_FROM_REG(val) ((val) * 1000) #define PWM_TO_REG(val) SENSORS_LIMIT(val, 0, 255) #define PWM_FROM_REG(val) (val) /* ZONEs have the following parameters: * Limit (low) temp, 1. degC * Hysteresis (below limit), 1. degC (0-15) * Range of speed control, .1 degC (2-80) * Critical (high) temp, 1. degC * * FAN PWMs have the following parameters: * Reference Zone, 1, 2, 3, etc. * Spinup time, .05 sec * PWM value at limit/low temp, 1 count * PWM Frequency, 1. Hz * PWM is Min or OFF below limit, flag * Invert PWM output, flag * * Some chips filter the temp, others the fan. * Filter constant (or disabled) .1 seconds */ /* These are the zone temperature range encodings in .001 degree C */ static const int lm85_range_map[] = { 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000, 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000 }; static int RANGE_TO_REG(int range) { int i; /* Find the closest match */ for (i = 0; i < 15; ++i) { if (range <= (lm85_range_map[i] + lm85_range_map[i + 1]) / 2) break; } return i; } #define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f] /* These are the PWM frequency encodings */ static const int lm85_freq_map[8] = { /* 1 Hz */ 10, 15, 23, 30, 38, 47, 61, 94 }; static const int adm1027_freq_map[8] = { /* 1 Hz */ 11, 15, 22, 29, 35, 44, 59, 88 }; static int FREQ_TO_REG(const int *map, int freq) { int i; /* Find the closest match */ for (i = 0; i < 7; ++i) if (freq <= (map[i] + map[i + 1]) / 2) break; return i; } static int FREQ_FROM_REG(const int *map, u8 reg) { return map[reg & 0x07]; } /* Since we can't use strings, I'm abusing these numbers * to stand in for the following meanings: * 1 -- PWM responds to Zone 1 * 2 -- PWM responds to Zone 2 * 3 -- PWM responds to Zone 3 * 23 -- PWM responds to the higher temp of Zone 2 or 3 * 123 -- PWM responds to highest of Zone 1, 2, or 3 * 0 -- PWM is always at 0% (ie, off) * -1 -- PWM is always at 100% * -2 -- PWM responds to manual control */ static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; #define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5] static int ZONE_TO_REG(int zone) { int i; for (i = 0; i <= 7; ++i) if (zone == lm85_zone_map[i]) break; if (i > 7) /* Not found. */ i = 3; /* Always 100% */ return i << 5; } #define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15) #define HYST_FROM_REG(val) ((val) * 1000) /* Chip sampling rates * * Some sensors are not updated more frequently than once per second * so it doesn't make sense to read them more often than that. * We cache the results and return the saved data if the driver * is called again before a second has elapsed. * * Also, there is significant configuration data for this chip * given the automatic PWM fan control that is possible. There * are about 47 bytes of config data to only 22 bytes of actual * readings. So, we keep the config data up to date in the cache * when it is written and only sample it once every 1 *minute* */ #define LM85_DATA_INTERVAL (HZ + HZ / 2) #define LM85_CONFIG_INTERVAL (1 * 60 * HZ) /* LM85 can automatically adjust fan speeds based on temperature * This structure encapsulates an entire Zone config. There are * three zones (one for each temperature input) on the lm85 */ struct lm85_zone { s8 limit; /* Low temp limit */ u8 hyst; /* Low limit hysteresis. (0-15) */ u8 range; /* Temp range, encoded */ s8 critical; /* "All fans ON" temp limit */ u8 off_desired; /* Actual "off" temperature specified. Preserved * to prevent "drift" as other autofan control * values change. */ u8 max_desired; /* Actual "max" temperature specified. Preserved * to prevent "drift" as other autofan control * values change. */ }; struct lm85_autofan { u8 config; /* Register value */ u8 min_pwm; /* Minimum PWM value, encoded */ u8 min_off; /* Min PWM or OFF below "limit", flag */ }; /* For each registered chip, we need to keep some data in memory. The structure is dynamically allocated. */ struct lm85_data { struct device *hwmon_dev; const int *freq_map; enum chips type; struct mutex update_lock; int valid; /* !=0 if following fields are valid */ unsigned long last_reading; /* In jiffies */ unsigned long last_config; /* In jiffies */ u8 in[8]; /* Register value */ u8 in_max[8]; /* Register value */ u8 in_min[8]; /* Register value */ s8 temp[3]; /* Register value */ s8 temp_min[3]; /* Register value */ s8 temp_max[3]; /* Register value */ u16 fan[4]; /* Register value */ u16 fan_min[4]; /* Register value */ u8 pwm[3]; /* Register value */ u8 pwm_freq[3]; /* Register encoding */ u8 temp_ext[3]; /* Decoded values */ u8 in_ext[8]; /* Decoded values */ u8 vid; /* Register value */ u8 vrm; /* VRM version */ u32 alarms; /* Register encoding, combined */ u8 cfg5; /* Config Register 5 on ADT7468 */ struct lm85_autofan autofan[3]; struct lm85_zone zone[3]; }; static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info); static int lm85_probe(struct i2c_client *client, const struct i2c_device_id *id); static int lm85_remove(struct i2c_client *client); static int lm85_read_value(struct i2c_client *client, u8 reg); static void lm85_write_value(struct i2c_client *client, u8 reg, int value); static struct lm85_data *lm85_update_device(struct device *dev); static const struct i2c_device_id lm85_id[] = { { "adm1027", adm1027 }, { "adt7463", adt7463 }, { "adt7468", adt7468 }, { "lm85", any_chip }, { "lm85b", lm85b }, { "lm85c", lm85c }, { "emc6d100", emc6d100 }, { "emc6d101", emc6d100 }, { "emc6d102", emc6d102 }, { } }; MODULE_DEVICE_TABLE(i2c, lm85_id); static struct i2c_driver lm85_driver = { .class = I2C_CLASS_HWMON, .driver = { .name = "lm85", }, .probe = lm85_probe, .remove = lm85_remove, .id_table = lm85_id, .detect = lm85_detect, .address_data = &addr_data, }; /* 4 Fans */ static ssize_t show_fan(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", FAN_FROM_REG(data->fan[nr])); } static ssize_t show_fan_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", FAN_FROM_REG(data->fan_min[nr])); } static ssize_t set_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 lm85_data *data = i2c_get_clientdata(client); unsigned long val = simple_strtoul(buf, NULL, 10); mutex_lock(&data->update_lock); data->fan_min[nr] = FAN_TO_REG(val); lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); mutex_unlock(&data->update_lock); return count; } #define show_fan_offset(offset) \ static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ show_fan, NULL, offset - 1); \ static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ show_fan_min, set_fan_min, offset - 1) show_fan_offset(1); show_fan_offset(2); show_fan_offset(3); show_fan_offset(4); /* vid, vrm, alarms */ static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) { struct lm85_data *data = lm85_update_device(dev); int vid; if ((data->type == adt7463 || data->type == adt7468) && (data->vid & 0x80)) { /* 6-pin VID (VRM 10) */ vid = vid_from_reg(data->vid & 0x3f, data->vrm); } else { /* 5-pin VID (VRM 9) */ vid = vid_from_reg(data->vid & 0x1f, data->vrm); } return sprintf(buf, "%d\n", vid); } static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) { struct lm85_data *data = dev_get_drvdata(dev); return sprintf(buf, "%ld\n", (long) data->vrm); } static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct lm85_data *data = dev_get_drvdata(dev); data->vrm = simple_strtoul(buf, NULL, 10); return count; } static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) { struct lm85_data *data = lm85_update_device(dev); return sprintf(buf, "%u\n", data->alarms); } static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); static ssize_t show_alarm(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, "%u\n", (data->alarms >> nr) & 1); } static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); 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; } static ssize_t show_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->freq_map, data->pwm_freq[nr])); } static ssize_t set_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->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, val); lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), (data->zone[nr].range << 4) | data->pwm_freq[nr]); 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); \ static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \ show_pwm_freq, set_pwm_freq, 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); if (IS_ADT7468_OFF64(data)) val += 64; 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); if (IS_ADT7468_OFF64(data)) val += 64; 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; } #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) 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->pwm_freq[nr] & 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->pwm_freq[nr] & 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 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_pwm1_freq.dev_attr.attr, &sensor_dev_attr_pwm2_freq.dev_attr.attr, &sensor_dev_attr_pwm3_freq.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_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_is_fake(struct i2c_client *client) { /* * Differenciate between real LM96000 and Winbond WPCD377I. The latter * emulate the former except that it has no hardware monitoring function * so the readings are always 0. */ int i; u8 in_temp, fan; for (i = 0; i < 8; i++) { in_temp = i2c_smbus_read_byte_data(client, 0x20 + i); fan = i2c_smbus_read_byte_data(client, 0x28 + i); if (in_temp != 0x00 || fan != 0xff) return 0; } return 1; } /* Return 0 if detection is successful, -ENODEV otherwise */ static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info) { struct i2c_adapter *adapter = client->adapter; int address = client->addr; const char *type_name; int company, verstep; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { /* We need to be able to do byte I/O */ return -ENODEV; } /* Determine the chip type */ company = lm85_read_value(client, LM85_REG_COMPANY); verstep = lm85_read_value(client, LM85_REG_VERSTEP); dev_dbg(&adapter->dev, "Detecting device at 0x%02x with " "COMPANY: 0x%02x and VERSTEP: 0x%02x\n", address, company, verstep); /* All supported chips have the version in common */ if ((verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC && (verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC2) { dev_dbg(&adapter->dev, "Autodetection failed: unsupported version\n"); return -ENODEV; } type_name = "lm85"; /* Now, refine the detection */ if (company == LM85_COMPANY_NATIONAL) { switch (verstep) { case LM85_VERSTEP_LM85C: type_name = "lm85c"; break; case LM85_VERSTEP_LM85B: type_name = "lm85b"; break; case LM85_VERSTEP_LM96000_1: case LM85_VERSTEP_LM96000_2: /* Check for Winbond WPCD377I */ if (lm85_is_fake(client)) { dev_dbg(&adapter->dev, "Found Winbond WPCD377I, ignoring\n"); return -ENODEV; } break; } } else if (company == LM85_COMPANY_ANALOG_DEV) { switch (verstep) { case LM85_VERSTEP_ADM1027: type_name = "adm1027"; break; case LM85_VERSTEP_ADT7463: case LM85_VERSTEP_ADT7463C: type_name = "adt7463"; break; case LM85_VERSTEP_ADT7468_1: case LM85_VERSTEP_ADT7468_2: type_name = "adt7468"; break; } } else if (company == LM85_COMPANY_SMSC) { switch (verstep) { case LM85_VERSTEP_EMC6D100_A0: case LM85_VERSTEP_EMC6D100_A1: /* Note: we can't tell a '100 from a '101 */ type_name = "emc6d100"; break; case LM85_VERSTEP_EMC6D102: type_name = "emc6d102"; break; } } else { dev_dbg(&adapter->dev, "Autodetection failed: unknown vendor\n"); return -ENODEV; } strlcpy(info->type, type_name, I2C_NAME_SIZE); return 0; } static int lm85_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct lm85_data *data; int err; data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL); if (!data) return -ENOMEM; i2c_set_clientdata(client, data); data->type = id->driver_data; mutex_init(&data->update_lock); /* Fill in the chip specific driver values */ switch (data->type) { case adm1027: case adt7463: case emc6d100: case emc6d102: data->freq_map = adm1027_freq_map; break; default: data->freq_map = lm85_freq_map; } /* 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 err_kfree; /* The ADT7463/68 have 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 (!((data->type == adt7463 || data->type == adt7468) && (data->vid & 0x80))) if ((err = sysfs_create_group(&client->dev.kobj, &lm85_group_in4))) goto err_remove_files; /* The EMC6D100 has 3 additional voltage inputs */


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