diff options
Diffstat (limited to 'drivers/hwmon/lm85.c')
| -rw-r--r-- | drivers/hwmon/lm85.c | 1575 |
1 files changed, 1575 insertions, 0 deletions
diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c new file mode 100644 index 00000000000..b4d7fd41826 --- /dev/null +++ b/drivers/hwmon/lm85.c @@ -0,0 +1,1575 @@ +/* + 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> + + 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/i2c-sensor.h> +#include <linux/i2c-vid.h> + +/* Addresses to scan */ +static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; +static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END }; + +/* Insmod parameters */ +SENSORS_INSMOD_6(lm85b, lm85c, adm1027, adt7463, 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 ADT7463_REG_OPPOINT(nr) (0x33 + (nr)) + +#define ADT7463_REG_TMIN_CTL1 0x36 +#define ADT7463_REG_TMIN_CTL2 0x37 + +#define LM85_REG_DEVICE 0x3d +#define LM85_REG_COMPANY 0x3e +#define LM85_REG_VERSTEP 0x3f +/* These are the recognized values for the above regs */ +#define LM85_DEVICE_ADX 0x27 +#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_LM85C 0x60 +#define LM85_VERSTEP_LM85B 0x62 +#define LM85_VERSTEP_ADM1027 0x60 +#define LM85_VERSTEP_ADT7463 0x62 +#define LM85_VERSTEP_ADT7463C 0x6A +#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_SPIKE2 0x63 +#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 LM85_REG_TACH_MODE 0x74 +#define LM85_REG_SPINUP_CTL 0x75 + +#define ADM1027_REG_TEMP_OFFSET(nr) (0x70 + (nr)) +#define ADM1027_REG_CONFIG2 0x73 +#define ADM1027_REG_INTMASK1 0x74 +#define ADM1027_REG_INTMASK2 0x75 +#define ADM1027_REG_EXTEND_ADC1 0x76 +#define ADM1027_REG_EXTEND_ADC2 0x77 +#define ADM1027_REG_CONFIG3 0x78 +#define ADM1027_REG_FAN_PPR 0x7b + +#define ADT7463_REG_THERM 0x79 +#define ADT7463_REG_THERM_LIMIT 0x7A + +#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 + +#define LM85_ALARM_IN0 0x0001 +#define LM85_ALARM_IN1 0x0002 +#define LM85_ALARM_IN2 0x0004 +#define LM85_ALARM_IN3 0x0008 +#define LM85_ALARM_TEMP1 0x0010 +#define LM85_ALARM_TEMP2 0x0020 +#define LM85_ALARM_TEMP3 0x0040 +#define LM85_ALARM_ALARM2 0x0080 +#define LM85_ALARM_IN4 0x0100 +#define LM85_ALARM_RESERVED 0x0200 +#define LM85_ALARM_FAN1 0x0400 +#define LM85_ALARM_FAN2 0x0800 +#define LM85_ALARM_FAN3 0x1000 +#define LM85_ALARM_FAN4 0x2000 +#define LM85_ALARM_TEMP1_FAULT 0x4000 +#define LM85_ALARM_TEMP3_FAULT 0x8000 + + +/* 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 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) \ + SCALE((val)*(scale) + (ext),192*(scale),lm85_scaling[n]) + +#define INS_FROM_REG(n,val) INSEXT_FROM_REG(n,val,0,1) + +/* FAN speed is measured using 90kHz clock */ +#define FAN_TO_REG(val) (SENSORS_LIMIT( (val)<=0?0: 5400000/(val),0,65534)) +#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) \ + SCALE((val)*scale + (ext),scale,1000) +#define TEMP_FROM_REG(val) \ + TEMPEXT_FROM_REG(val,0,1) + +#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 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; + + if ( range < lm85_range_map[0] ) { + return 0 ; + } else if ( range > lm85_range_map[15] ) { + return 15 ; + } else { /* find closest match */ + for ( i = 14 ; i >= 0 ; --i ) { + if ( range > lm85_range_map[i] ) { /* range bracketed */ + if ((lm85_range_map[i+1] - range) < + (range - lm85_range_map[i])) { + i++; + break; + } + break; + } + } + } + return( i & 0x0f ); +} +#define RANGE_FROM_REG(val) (lm85_range_map[(val)&0x0f]) + +/* These are the Acoustic Enhancement, or Temperature smoothing encodings + * NOTE: The enable/disable bit is INCLUDED in these encodings as the + * MSB (bit 3, value 8). If the enable bit is 0, the encoded value + * is ignored, or set to 0. + */ +/* These are the PWM frequency encodings */ +static int lm85_freq_map[] = { /* .1 Hz */ + 100, 150, 230, 300, 380, 470, 620, 940 + }; +static int FREQ_TO_REG( int freq ) +{ + int i; + + if( freq >= lm85_freq_map[7] ) { return 7 ; } + for( i = 0 ; i < 7 ; ++i ) + if( freq <= lm85_freq_map[i] ) + break ; + return( i & 0x07 ); +} +#define FREQ_FROM_REG(val) (lm85_freq_map[(val)&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 int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; +#define ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07]) + +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 & 0x07)<<5 ); +} + +#define HYST_TO_REG(val) (SENSORS_LIMIT(((val)+500)/1000,0,15)) +#define HYST_FROM_REG(val) ((val)*1000) + +#define OFFSET_TO_REG(val) (SENSORS_LIMIT((val)/25,-127,127)) +#define OFFSET_FROM_REG(val) ((val)*25) + +#define PPR_MASK(fan) (0x03<<(fan *2)) +#define PPR_TO_REG(val,fan) (SENSORS_LIMIT((val)-1,0,3)<<(fan *2)) +#define PPR_FROM_REG(val,fan) ((((val)>>(fan * 2))&0x03)+1) + +/* i2c-vid.h defines vid_from_reg() */ +#define VID_FROM_REG(val,vrm) (vid_from_reg((val),(vrm))) + +/* Unlike some other drivers we DO NOT set initial limits. Use + * the config file to set limits. Some users have reported + * motherboards shutting down when we set limits in a previous + * version of the driver. + */ + +/* 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) + +/* For each registered LM85, we need to keep some data in memory. That + data is pointed to by lm85_list[NR]->data. The structure itself is + dynamically allocated, at the same time when a new lm85 client is + allocated. */ + +/* 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 freq; /* PWM frequency, encoded */ + u8 min_pwm; /* Minimum PWM value, encoded */ + u8 min_off; /* Min PWM or OFF below "limit", flag */ +}; + +struct lm85_data { + struct i2c_client client; + struct semaphore lock; + enum chips type; + + struct semaphore 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 */ + s8 temp_offset[3]; /* Register value */ + u16 fan[4]; /* Register value */ + u16 fan_min[4]; /* Register value */ + u8 pwm[3]; /* Register value */ + u8 spinup_ctl; /* Register encoding, combined */ + u8 tach_mode; /* Register encoding, combined */ + u8 temp_ext[3]; /* Decoded values */ + u8 in_ext[8]; /* Decoded values */ + u8 adc_scale; /* ADC Extended bits scaling factor */ + u8 fan_ppr; /* Register value */ + u8 smooth[3]; /* Register encoding */ + u8 vid; /* Register value */ + u8 vrm; /* VRM version */ + u8 syncpwm3; /* Saved PWM3 for TACH 2,3,4 config */ + u8 oppoint[3]; /* Register value */ + u16 tmin_ctl; /* Register value */ + unsigned long therm_total; /* Cummulative therm count */ + u8 therm_limit; /* Register value */ + u32 alarms; /* Register encoding, combined */ + struct lm85_autofan autofan[3]; + struct lm85_zone zone[3]; +}; + +static int lm85_attach_adapter(struct i2c_adapter *adapter); +static int lm85_detect(struct i2c_adapter *adapter, int address, + int kind); +static int lm85_detach_client(struct i2c_client *client); + +static int lm85_read_value(struct i2c_client *client, u8 register); +static int lm85_write_value(struct i2c_client *client, u8 register, int value); +static struct lm85_data *lm85_update_device(struct device *dev); +static void lm85_init_client(struct i2c_client *client); + + +static struct i2c_driver lm85_driver = { + .owner = THIS_MODULE, + .name = "lm85", + .id = I2C_DRIVERID_LM85, + .flags = I2C_DF_NOTIFY, + .attach_adapter = lm85_attach_adapter, + .detach_client = lm85_detach_client, +}; + + +/* 4 Fans */ +static ssize_t show_fan(struct device *dev, char *buf, int nr) +{ + 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, char *buf, int nr) +{ + 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, const char *buf, + size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&data->update_lock); + data->fan_min[nr] = FAN_TO_REG(val); + lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); + up(&data->update_lock); + return count; +} + +#define show_fan_offset(offset) \ +static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_fan(dev, buf, offset - 1); \ +} \ +static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_fan_min(dev, buf, offset - 1); \ +} \ +static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return set_fan_min(dev, buf, count, offset - 1); \ +} \ +static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, \ + NULL); \ +static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ + show_fan_##offset##_min, set_fan_##offset##_min); + +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); + return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); +} + +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 = lm85_update_device(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 i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + u32 val; + + val = simple_strtoul(buf, NULL, 10); + data->vrm = val; + 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); + +/* pwm */ + +static ssize_t show_pwm(struct device *dev, char *buf, int nr) +{ + 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, const char *buf, + size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&data->update_lock); + data->pwm[nr] = PWM_TO_REG(val); + lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); + up(&data->update_lock); + return count; +} +static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr) +{ + struct lm85_data *data = lm85_update_device(dev); + int pwm_zone; + + pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); + return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) ); +} + +#define show_pwm_reg(offset) \ +static ssize_t show_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_pwm(dev, buf, offset - 1); \ +} \ +static ssize_t set_pwm_##offset (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return set_pwm(dev, buf, count, offset - 1); \ +} \ +static ssize_t show_pwm_enable##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_pwm_enable(dev, buf, offset - 1); \ +} \ +static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ + show_pwm_##offset, set_pwm_##offset); \ +static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO, \ + show_pwm_enable##offset, NULL); + +show_pwm_reg(1); +show_pwm_reg(2); +show_pwm_reg(3); + +/* Voltages */ + +static ssize_t show_in(struct device *dev, char *buf, int nr) +{ + struct lm85_data *data = lm85_update_device(dev); + return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr, + data->in[nr], + data->in_ext[nr], + data->adc_scale) ); +} +static ssize_t show_in_min(struct device *dev, char *buf, int nr) +{ + 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, const char *buf, + size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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]); + up(&data->update_lock); + return count; +} +static ssize_t show_in_max(struct device *dev, char *buf, int nr) +{ + 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, const char *buf, + size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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]); + up(&data->update_lock); + return count; +} +#define show_in_reg(offset) \ +static ssize_t show_in_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_in(dev, buf, offset); \ +} \ +static ssize_t show_in_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_in_min(dev, buf, offset); \ +} \ +static ssize_t show_in_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_in_max(dev, buf, offset); \ +} \ +static ssize_t set_in_##offset##_min (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return set_in_min(dev, buf, count, offset); \ +} \ +static ssize_t set_in_##offset##_max (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return set_in_max(dev, buf, count, offset); \ +} \ +static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset, \ + NULL); \ +static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ + show_in_##offset##_min, set_in_##offset##_min); \ +static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ + show_in_##offset##_max, set_in_##offset##_max); + +show_in_reg(0); +show_in_reg(1); +show_in_reg(2); +show_in_reg(3); +show_in_reg(4); + +/* Temps */ + +static ssize_t show_temp(struct device *dev, char *buf, int nr) +{ + struct lm85_data *data = lm85_update_device(dev); + return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr], + data->temp_ext[nr], + data->adc_scale) ); +} +static ssize_t show_temp_min(struct device *dev, char *buf, int nr) +{ + 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, const char *buf, + size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&data->update_lock); + data->temp_min[nr] = TEMP_TO_REG(val); + lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); + up(&data->update_lock); + return count; +} +static ssize_t show_temp_max(struct device *dev, char *buf, int nr) +{ + 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, const char *buf, + size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&data->update_lock); + data->temp_max[nr] = TEMP_TO_REG(val); + lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); + up(&data->update_lock); + return count; +} +#define show_temp_reg(offset) \ +static ssize_t show_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_temp(dev, buf, offset - 1); \ +} \ +static ssize_t show_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_temp_min(dev, buf, offset - 1); \ +} \ +static ssize_t show_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_temp_max(dev, buf, offset - 1); \ +} \ +static ssize_t set_temp_##offset##_min (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return set_temp_min(dev, buf, count, offset - 1); \ +} \ +static ssize_t set_temp_##offset##_max (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return set_temp_max(dev, buf, count, offset - 1); \ +} \ +static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, \ + NULL); \ +static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ + show_temp_##offset##_min, set_temp_##offset##_min); \ +static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ + show_temp_##offset##_max, set_temp_##offset##_max); + +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, char *buf, int nr) +{ + 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, const char *buf, + size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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); + up(&data->update_lock); + return count; +} +static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr) +{ + 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, const char *buf, + size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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); + up(&data->update_lock); + return count; +} +static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr) +{ + 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, const char *buf, + size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&data->update_lock); + data->autofan[nr].min_off = val; + lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0] + | data->syncpwm3 + | (data->autofan[0].min_off ? 0x20 : 0) + | (data->autofan[1].min_off ? 0x40 : 0) + | (data->autofan[2].min_off ? 0x80 : 0) + ); + up(&data->update_lock); + return count; +} +static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr) +{ + 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, const char *buf, + size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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 + ); + up(&data->update_lock); + return count; +} +#define pwm_auto(offset) \ +static ssize_t show_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr, \ + char *buf) \ +{ \ + return show_pwm_auto_channels(dev, buf, offset - 1); \ +} \ +static ssize_t set_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return set_pwm_auto_channels(dev, buf, count, offset - 1); \ +} \ +static ssize_t show_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr, \ + char *buf) \ +{ \ + return show_pwm_auto_pwm_min(dev, buf, offset - 1); \ +} \ +static ssize_t set_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return set_pwm_auto_pwm_min(dev, buf, count, offset - 1); \ +} \ +static ssize_t show_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr, \ + char *buf) \ +{ \ + return show_pwm_auto_pwm_minctl(dev, buf, offset - 1); \ +} \ +static ssize_t set_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return set_pwm_auto_pwm_minctl(dev, buf, count, offset - 1); \ +} \ +static ssize_t show_pwm##offset##_auto_pwm_freq (struct device *dev, struct device_attribute *attr, \ + char *buf) \ +{ \ + return show_pwm_auto_pwm_freq(dev, buf, offset - 1); \ +} \ +static ssize_t set_pwm##offset##_auto_pwm_freq(struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return set_pwm_auto_pwm_freq(dev, buf, count, offset - 1); \ +} \ +static DEVICE_ATTR(pwm##offset##_auto_channels, S_IRUGO | S_IWUSR, \ + show_pwm##offset##_auto_channels, \ + set_pwm##offset##_auto_channels); \ +static DEVICE_ATTR(pwm##offset##_auto_pwm_min, S_IRUGO | S_IWUSR, \ + show_pwm##offset##_auto_pwm_min, \ + set_pwm##offset##_auto_pwm_min); \ +static DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, S_IRUGO | S_IWUSR, \ + show_pwm##offset##_auto_pwm_minctl, \ + set_pwm##offset##_auto_pwm_minctl); \ +static DEVICE_ATTR(pwm##offset##_auto_pwm_freq, S_IRUGO | S_IWUSR, \ + show_pwm##offset##_auto_pwm_freq, \ + set_pwm##offset##_auto_pwm_freq); +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, char *buf, int nr) +{ + 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, const char *buf, + size_t count, int nr) +{ + 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); + + down(&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) + ); + } + up(&data->update_lock); + return count; +} +static ssize_t show_temp_auto_temp_min(struct device *dev, char *buf, int nr) +{ + 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, const char *buf, + size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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) + ); + } + up(&data->update_lock); + return count; +} +static ssize_t show_temp_auto_temp_max(struct device *dev, char *buf, int nr) +{ + 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, const char *buf, + size_t count, int nr) +{ + 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); + + down(&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)); + up(&data->update_lock); + return count; +} +static ssize_t show_temp_auto_temp_crit(struct device *dev, char *buf, int nr) +{ + 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, const char *buf, + size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&data->update_lock); + data->zone[nr].critical = TEMP_TO_REG(val); + lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), + data->zone[nr].critical); + up(&data->update_lock); + return count; +} +#define temp_auto(offset) \ +static ssize_t show_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr, \ + char *buf) \ +{ \ + return show_temp_auto_temp_off(dev, buf, offset - 1); \ +} \ +static ssize_t set_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return set_temp_auto_temp_off(dev, buf, count, offset - 1); \ +} \ +static ssize_t show_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr, \ + char *buf) \ +{ \ + return show_temp_auto_temp_min(dev, buf, offset - 1); \ +} \ +static ssize_t set_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return set_temp_auto_temp_min(dev, buf, count, offset - 1); \ +} \ +static ssize_t show_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr, \ + char *buf) \ +{ \ + return show_temp_auto_temp_max(dev, buf, offset - 1); \ +} \ +static ssize_t set_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return set_temp_auto_temp_max(dev, buf, count, offset - 1); \ +} \ +static ssize_t show_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr, \ + char *buf) \ +{ \ + return show_temp_auto_temp_crit(dev, buf, offset - 1); \ +} \ +static ssize_t set_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return set_temp_auto_temp_crit(dev, buf, count, offset - 1); \ +} \ +static DEVICE_ATTR(temp##offset##_auto_temp_off, S_IRUGO | S_IWUSR, \ + show_temp##offset##_auto_temp_off, \ + set_temp##offset##_auto_temp_off); \ +static DEVICE_ATTR(temp##offset##_auto_temp_min, S_IRUGO | S_IWUSR, \ + show_temp##offset##_auto_temp_min, \ + set_temp##offset##_auto_temp_min); \ +static DEVICE_ATTR(temp##offset##_auto_temp_max, S_IRUGO | S_IWUSR, \ + show_temp##offset##_auto_temp_max, \ + set_temp##offset##_auto_temp_max); \ +static DEVICE_ATTR(temp##offset##_auto_temp_crit, S_IRUGO | S_IWUSR, \ + show_temp##offset##_auto_temp_crit, \ + set_temp##offset##_auto_temp_crit); +temp_auto(1); +temp_auto(2); +temp_auto(3); + +int lm85_attach_adapter(struct i2c_adapter *adapter) +{ + if (!(adapter->class & I2C_CLASS_HWMON)) + return 0; + return i2c_detect(adapter, &addr_data, lm85_detect); +} + +int lm85_detect(struct i2c_adapter *adapter, int address, + int kind) +{ + int company, verstep ; + struct i2c_client *new_client = NULL; + struct lm85_data *data; + int err = 0; + const char *type_name = ""; + + if (i2c_is_isa_adapter(adapter)) { + /* This chip has no ISA interface */ + goto ERROR0 ; + }; + + if (!i2c_check_functionality(adapter, + I2C_FUNC_SMBUS_BYTE_DATA)) { + /* We need to be able to do byte I |