ChangeSet 1.1419.1.3, 2003/06/11 11:42:47-07:00, margitsw at t-online.de [PATCH] I2C: add LM85 driver Nothing extra in sysfs (yet) but I have left the way open in the driver to do this. Provides vid, vrm, fan_input(1-4), fan_min(1-4), pwm(1-3), pwm_enable(1-3), in_input(0-4), in_min(0-4), in_max(0-4), temp_input(1-3), temp_min(1-3), temp_max(1-3), alarms. drivers/i2c/chips/Kconfig | 19 drivers/i2c/chips/Makefile | 1 drivers/i2c/chips/lm85.c | 1223 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 1241 insertions(+), 2 deletions(-) diff -Nru a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig --- a/drivers/i2c/chips/Kconfig Wed Jun 11 13:25:33 2003 +++ b/drivers/i2c/chips/Kconfig Wed Jun 11 13:25:33 2003 @@ -47,6 +47,21 @@ in the lm_sensors package, which you can download at http://www.lm-sensors.nu +config SENSORS_LM85 + tristate " National Semiconductors LM85 and compatibles" + depends on I2C && EXPERIMENTAL + help + If you say yes here you get support for National Semiconductor LM85 + sensor chips and clones: ADT7463 and ADM1027. + This can also be built as a module which can be inserted and + removed while the kernel is running. + + The module will be called lm85. + + You will also need the latest user-space utilties: you can find them + in the lm_sensors package, which you can download at + http://www.lm-sensors.nu + config SENSORS_VIA686A tristate " VIA686A" depends on I2C && EXPERIMENTAL @@ -76,8 +91,8 @@ config I2C_SENSOR tristate - default y if SENSORS_ADM1021=y || SENSORS_IT87=y || SENSORS_LM75=y || SENSORS_VIA686A=y || SENSORS_W83781D=y - default m if SENSORS_ADM1021=m || SENSORS_IT87=m || SENSORS_LM75=m || SENSORS_VIA686A=m || SENSORS_W83781D=m + default y if SENSORS_ADM1021=y || SENSORS_IT87=y || SENSORS_LM75=y || SENSORS_VIA686A=y || SENSORS_W83781D=y || SENSORS_LM85=y + default m if SENSORS_ADM1021=m || SENSORS_IT87=m || SENSORS_LM75=m || SENSORS_VIA686A=m || SENSORS_W83781D=m || SENSORS_LM85=m default n endmenu diff -Nru a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile --- a/drivers/i2c/chips/Makefile Wed Jun 11 13:25:33 2003 +++ b/drivers/i2c/chips/Makefile Wed Jun 11 13:25:33 2003 @@ -5,5 +5,6 @@ obj-$(CONFIG_SENSORS_ADM1021) += adm1021.o obj-$(CONFIG_SENSORS_IT87) += it87.o obj-$(CONFIG_SENSORS_LM75) += lm75.o +obj-$(CONFIG_SENSORS_LM85) += lm85.o obj-$(CONFIG_SENSORS_VIA686A) += via686a.o obj-$(CONFIG_SENSORS_W83781D) += w83781d.o diff -Nru a/drivers/i2c/chips/lm85.c b/drivers/i2c/chips/lm85.c --- /dev/null Wed Dec 31 16:00:00 1969 +++ b/drivers/i2c/chips/lm85.c Wed Jun 11 13:25:33 2003 @@ -0,0 +1,1223 @@ +/* + lm85.c - Part of lm_sensors, Linux kernel modules for hardware + monitoring + Copyright (c) 1998, 1999 Frodo Looijaard <frodol at dds.nl> + Copyright (c) 2002, 2003 Philip Pokorny <ppokorny at penguincomputing.com> + Copyright (c) 2003 Margit Schubert-While <margitsw at t-online.de> + + 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/i2c.h> +#include <linux/i2c-sensor.h> +#include <linux/i2c-vid.h> +/* +#include <asm/io.h> +*/ + +#undef LM85EXTENDEDFUNC /* Extended functionality */ + +/* Addresses to scan */ +static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; +static unsigned short normal_i2c_range[] = { I2C_CLIENT_END }; +static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END }; +static unsigned int normal_isa_range[] = { I2C_CLIENT_ISA_END }; + +/* Insmod parameters */ +SENSORS_INSMOD_4(lm85b, lm85c, adm1027, adt7463); + +/* Enable debug if true */ +static int lm85debug = 0; + +/* 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_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_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 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 1.000 == 0xc0, mag = 3 */ +#define IN_TO_REG(val) (SENSORS_LIMIT((((val)*0xc0+500)/1000),0,255)) +#define INEXT_FROM_REG(val,ext) (((val)*1000 + (ext)*250 + 96)/0xc0) +#define IN_FROM_REG(val) (INEXT_FROM_REG(val,0)) + +/* IN are scaled acording to built-in resistors */ +static int lm85_scaling[] = { /* .001 Volts */ + 2500, 2250, 3300, 5000, 12000 + }; +#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) (INSEXT_FROM_REG(n,val,0)) +*/ +#define INS_FROM_REG(n,val) ( ( (val*4*lm85_scaling[n]) + (192*4/2) ) / (192*4) ) + +/* 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 .01 degC increments */ +#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)+50)/100,-127,127)) +#define TEMPEXT_FROM_REG(val,ext) ((val)*100 + (ext)*25) +#define TEMP_FROM_REG(val) (TEMPEXT_FROM_REG(val,0)) +#define EXTTEMP_TO_REG(val) (SENSORS_LIMIT((val)/25,-127,127)) + +#define PWM_TO_REG(val) (SENSORS_LIMIT(val,0,255)) +#define PWM_FROM_REG(val) (val) + +#define EXT_FROM_REG(val,sensor) (((val)>>(sensor * 2))&0x03) + +#ifdef LM85EXTENDEDFUNC /* Extended functionality */ + +/* 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 */ +static int lm85_range_map[] = { /* .1 degC */ + 20, 25, 33, 40, 50, 66, + 80, 100, 133, 160, 200, 266, + 320, 400, 533, 800 + }; +static int RANGE_TO_REG( int range ) +{ + int i; + + if( range >= lm85_range_map[15] ) { return 15 ; } + for( i = 0 ; i < 15 ; ++i ) + if( range <= lm85_range_map[i] ) + 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. + */ +static int lm85_smooth_map[] = { /* .1 sec */ + 350, 176, 118, 70, 44, 30, 16, 8 +/* 35.4 * 1/1, 1/2, 1/3, 1/5, 1/8, 1/12, 1/24, 1/48 */ + }; +static int SMOOTH_TO_REG( int smooth ) +{ + int i; + + if( smooth <= 0 ) { return 0 ; } /* Disabled */ + for( i = 0 ; i < 7 ; ++i ) + if( smooth >= lm85_smooth_map[i] ) + break ; + return( (i & 0x07) | 0x08 ); +} +#define SMOOTH_FROM_REG(val) ((val)&0x08?lm85_smooth_map[(val)&0x07]:0) + +/* These are the fan spinup delay time encodings */ +static int lm85_spinup_map[] = { /* .1 sec */ + 0, 1, 2, 4, 7, 10, 20, 40 + }; +static int SPINUP_TO_REG( int spinup ) +{ + int i; + + if( spinup >= lm85_spinup_map[7] ) { return 7 ; } + for( i = 0 ; i < 7 ; ++i ) + if( spinup <= lm85_spinup_map[i] ) + break ; + return( i & 0x07 ); +} +#define SPINUP_FROM_REG(val) (lm85_spinup_map[(val)&0x07]) + +/* These are the PWM frequency encodings */ +static int lm85_freq_map[] = { /* .1 Hz */ + 100, 150, 230, 300, 380, 470, 620, 980 + }; +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 + */ + +#endif /* Extended functionality */ + +static int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; +#define ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07]) + +#ifdef LM85EXTENDEDFUNC /* Extended functionality */ + +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 ); +} + +#endif /* Extended functionality */ + +#define HYST_TO_REG(val) (SENSORS_LIMIT((-(val)+5)/10,0,15)) +#define HYST_FROM_REG(val) (-(val)*10) + +#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))) + +#define ALARMS_FROM_REG(val) (val) + +/* 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. + */ + +/* Typically used with Pentium 4 systems v9.1 VRM spec */ +#define LM85_INIT_VRM 91 + +/* 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 */ +}; + +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 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[5]; /* Register value */ + u8 in_max[5]; /* Register value */ + u8 in_min[5]; /* 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 */ + u16 extend_adc; /* Register value */ + 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 */ + u32 therm_total; /* Cummulative therm count */ + u8 therm_limit; /* Register value */ + u16 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 void lm85_update_client(struct i2c_client *client); +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, +}; + +/* Unique ID assigned to each LM85 detected */ +static int lm85_id = 0; + + +/* 4 Fans */ +static ssize_t show_fan(struct device *dev, char *buf, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + + lm85_update_client(client); + 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 i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + + lm85_update_client(client); + 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); + + int val = simple_strtol(buf, NULL, 10); + data->fan_min[nr] = FAN_TO_REG(val); + lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); + return count; +} + +#define show_fan_offset(offset) \ +static ssize_t show_fan_##offset (struct device *dev, char *buf) \ +{ \ + return show_fan(dev, buf, 0x##offset - 1); \ +} \ +static ssize_t show_fan_##offset##_min (struct device *dev, char *buf) \ +{ \ + return show_fan_min(dev, buf, 0x##offset - 1); \ +} \ +static ssize_t set_fan_##offset##_min (struct device *dev, \ + const char *buf, size_t count) \ +{ \ + return set_fan_min(dev, buf, count, 0x##offset - 1); \ +} \ +static DEVICE_ATTR(fan_input##offset, S_IRUGO, show_fan_##offset, NULL) \ +static DEVICE_ATTR(fan_min##offset, 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, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + + lm85_update_client(client); + return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); +} + +static DEVICE_ATTR(vid, S_IRUGO, show_vid_reg, NULL) + +static ssize_t show_vrm_reg(struct device *dev, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + + lm85_update_client(client); + return sprintf(buf, "%ld\n", (long) data->vrm); +} + +static ssize_t store_vrm_reg(struct device *dev, 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, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + + lm85_update_client(client); + return sprintf(buf, "%ld\n", (long) ALARMS_FROM_REG(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 i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + + lm85_update_client(client); + 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); + + int val = simple_strtol(buf, NULL, 10); + data->pwm[nr] = PWM_TO_REG(val); + lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); + return count; +} +static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + int pwm_zone; + + lm85_update_client(client); + 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, char *buf) \ +{ \ + return show_pwm(dev, buf, 0x##offset - 1); \ +} \ +static ssize_t set_pwm_##offset (struct device *dev, \ + const char *buf, size_t count) \ +{ \ + return set_pwm(dev, buf, count, 0x##offset - 1); \ +} \ +static ssize_t show_pwm_enable##offset (struct device *dev, char *buf) \ +{ \ + return show_pwm_enable(dev, buf, 0x##offset - 1); \ +} \ +static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ + show_pwm_##offset, set_pwm_##offset) \ +static DEVICE_ATTR(pwm_enable##offset, 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 i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + + lm85_update_client(client); + return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in[nr]) ); +} +static ssize_t show_in_min(struct device *dev, char *buf, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + + lm85_update_client(client); + 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); + + int val = simple_strtol(buf, NULL, 10); + data->in_min[nr] = INS_TO_REG(nr, val); + lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); + return count; +} +static ssize_t show_in_max(struct device *dev, char *buf, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + + lm85_update_client(client); + 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); + + int val = simple_strtol(buf, NULL, 10); + data->in_max[nr] = INS_TO_REG(nr, val); + lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); + return count; +} +#define show_in_reg(offset) \ +static ssize_t show_in_##offset (struct device *dev, char *buf) \ +{ \ + return show_in(dev, buf, 0x##offset); \ +} \ +static ssize_t show_in_##offset##_min (struct device *dev, char *buf) \ +{ \ + return show_in_min(dev, buf, 0x##offset); \ +} \ +static ssize_t show_in_##offset##_max (struct device *dev, char *buf) \ +{ \ + return show_in_max(dev, buf, 0x##offset); \ +} \ +static ssize_t set_in_##offset##_min (struct device *dev, \ + const char *buf, size_t count) \ +{ \ + return set_in_min(dev, buf, count, 0x##offset); \ +} \ +static ssize_t set_in_##offset##_max (struct device *dev, \ + const char *buf, size_t count) \ +{ \ + return set_in_max(dev, buf, count, 0x##offset); \ +} \ +static DEVICE_ATTR(in_input##offset, S_IRUGO, show_in_##offset, NULL) \ +static DEVICE_ATTR(in_min##offset, S_IRUGO | S_IWUSR, \ + show_in_##offset##_min, set_in_##offset##_min) \ +static DEVICE_ATTR(in_max##offset, 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 i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + + lm85_update_client(client); + return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp[nr]) ); +} +static ssize_t show_temp_min(struct device *dev, char *buf, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + + lm85_update_client(client); + 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); + + int val = simple_strtol(buf, NULL, 10); + data->temp_min[nr] = TEMP_TO_REG(val); + lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); + return count; +} +static ssize_t show_temp_max(struct device *dev, char *buf, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm85_data *data = i2c_get_clientdata(client); + + lm85_update_client(client); + 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); + + int val = simple_strtol(buf, NULL, 10); + data->temp_max[nr] = TEMP_TO_REG(val); + lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); + return count; +} +#define show_temp_reg(offset) \ +static ssize_t show_temp_##offset (struct device *dev, char *buf) \ +{ \ + return show_temp(dev, buf, 0x##offset - 1); \ +} \ +static ssize_t show_temp_##offset##_min (struct device *dev, char *buf) \ +{ \ + return show_temp_min(dev, buf, 0x##offset - 1); \ +} \ +static ssize_t show_temp_##offset##_max (struct device *dev, char *buf) \ +{ \ + return show_temp_max(dev, buf, 0x##offset - 1); \ +} \ +static ssize_t set_temp_##offset##_min (struct device *dev, \ + const char *buf, size_t count) \ +{ \ + return set_temp_min(dev, buf, count, 0x##offset - 1); \ +} \ +static ssize_t set_temp_##offset##_max (struct device *dev, \ + const char *buf, size_t count) \ +{ \ + return set_temp_max(dev, buf, count, 0x##offset - 1); \ +} \ +static DEVICE_ATTR(temp_input##offset, S_IRUGO, show_temp_##offset, NULL) \ +static DEVICE_ATTR(temp_min##offset, S_IRUGO | S_IWUSR, \ + show_temp_##offset##_min, set_temp_##offset##_min) \ +static DEVICE_ATTR(temp_max##offset, S_IRUGO | S_IWUSR, \ + show_temp_##offset##_max, set_temp_##offset##_max) + +show_temp_reg(1); +show_temp_reg(2); +show_temp_reg(3); + + +int lm85_attach_adapter(struct i2c_adapter *adapter) +{ + 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/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 (!(new_client = kmalloc((sizeof(struct i2c_client)) + + sizeof(struct lm85_data), + GFP_KERNEL))) { + err = -ENOMEM; + goto ERROR0; + } + + memset(new_client, 0, sizeof(struct i2c_client) + + sizeof(struct lm85_data)); + data = (struct lm85_data *) (new_client + 1); + i2c_set_clientdata(new_client, data); + new_client->addr = address; + new_client->adapter = adapter; + new_client->driver = &lm85_driver; + new_client->flags = 0; + + /* Now, we do the remaining detection. */ + + company = lm85_read_value(new_client, LM85_REG_COMPANY); + verstep = lm85_read_value(new_client, LM85_REG_VERSTEP); + + if (lm85debug) { + printk("lm85: Detecting device at %d,0x%02x with" + " COMPANY: 0x%02x and VERSTEP: 0x%02x\n", + i2c_adapter_id(new_client->adapter), new_client->addr, + company, verstep); + } + + /* If auto-detecting, Determine the chip type. */ + if (kind <= 0) { + if (lm85debug) { + printk("lm85: 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 & 0xf0) == LM85_VERSTEP_GENERIC ) { + printk("lm85: Unrecgonized 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 ) { + kind = adt7463 ; + } else if( company == LM85_COMPANY_ANALOG_DEV + && (verstep & 0xf0) == LM85_VERSTEP_GENERIC ) { + printk("lm85: Unrecgonized version/stepping 0x%02x" + " Defaulting to ADM1027.\n", verstep ); + kind = adm1027 ; + } else if( kind == 0 && (verstep & 0xf0) == 0x60) { + printk("lm85: Generic LM85 Version 6 detected\n"); + /* Leave kind as "any_chip" */ + } else { + if (lm85debug) { + printk("lm85: Autodetection failed\n"); + } + /* Not an LM85 ... */ + if( kind == 0 ) { /* User used force=x,y */ + printk("lm85: 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 */ + if ( kind == any_chip ) { + type_name = "lm85"; + strlcpy(new_client->dev.name, "Generic LM85", DEVICE_NAME_SIZE); + } else if ( kind == lm85b ) { + type_name = "lm85b"; + strlcpy(new_client->dev.name, "National LM85-B", DEVICE_NAME_SIZE); + } else if ( kind == lm85c ) { + type_name = "lm85c"; + strlcpy(new_client->dev.name, "National LM85-C", DEVICE_NAME_SIZE); + } else if ( kind == adm1027 ) { + type_name = "adm1027"; + strlcpy(new_client->dev.name, "Analog Devices ADM1027", DEVICE_NAME_SIZE); + } else if ( kind == adt7463 ) { + type_name = "adt7463"; + strlcpy(new_client->dev.name, "Analog Devices ADT7463", DEVICE_NAME_SIZE); + } else { + dev_dbg(&adapter->dev, "Internal error, invalid kind (%d)!", kind); + err = -EFAULT ; + goto ERROR1; + } + + /* Fill in the remaining client fields */ + new_client->id = lm85_id++; + data->type = kind; + data->valid = 0; + init_MUTEX(&data->update_lock); + + if (lm85debug) { + printk("lm85: Assigning ID %d to %s at %d,0x%02x\n", + new_client->id, new_client->dev.name, + i2c_adapter_id(new_client->adapter), + new_client->addr); + } + + /* Tell the I2C layer a new client has arrived */ + if ((err = i2c_attach_client(new_client))) + goto ERROR1; + + /* Set the VRM version */ + data->vrm = LM85_INIT_VRM ; + + device_create_file(&new_client->dev, &dev_attr_fan_input1); + device_create_file(&new_client->dev, &dev_attr_fan_input2); + device_create_file(&new_client->dev, &dev_attr_fan_input3); + device_create_file(&new_client->dev, &dev_attr_fan_input4); + device_create_file(&new_client->dev, &dev_attr_fan_min1); + device_create_file(&new_client->dev, &dev_attr_fan_min2); + device_create_file(&new_client->dev, &dev_attr_fan_min3); + device_create_file(&new_client->dev, &dev_attr_fan_min4); + device_create_file(&new_client->dev, &dev_attr_pwm1); + device_create_file(&new_client->dev, &dev_attr_pwm2); + device_create_file(&new_client->dev, &dev_attr_pwm3); + device_create_file(&new_client->dev, &dev_attr_pwm_enable1); + device_create_file(&new_client->dev, &dev_attr_pwm_enable2); + device_create_file(&new_client->dev, &dev_attr_pwm_enable3); + device_create_file(&new_client->dev, &dev_attr_in_input0); + device_create_file(&new_client->dev, &dev_attr_in_input1); + device_create_file(&new_client->dev, &dev_attr_in_input2); + device_create_file(&new_client->dev, &dev_attr_in_input3); + device_create_file(&new_client->dev, &dev_attr_in_input4); + device_create_file(&new_client->dev, &dev_attr_in_min0); + device_create_file(&new_client->dev, &dev_attr_in_min1); + device_create_file(&new_client->dev, &dev_attr_in_min2); + device_create_file(&new_client->dev, &dev_attr_in_min3); + device_create_file(&new_client->dev, &dev_attr_in_min4); + device_create_file(&new_client->dev, &dev_attr_in_max0); + device_create_file(&new_client->dev, &dev_attr_in_max1); + device_create_file(&new_client->dev, &dev_attr_in_max2); + device_create_file(&new_client->dev, &dev_attr_in_max3); + device_create_file(&new_client->dev, &dev_attr_in_max4); + device_create_file(&new_client->dev, &dev_attr_temp_input1); + device_create_file(&new_client->dev, &dev_attr_temp_input2); + device_create_file(&new_client->dev, &dev_attr_temp_input3); + device_create_file(&new_client->dev, &dev_attr_temp_min1); + device_create_file(&new_client->dev, &dev_attr_temp_min2); + device_create_file(&new_client->dev, &dev_attr_temp_min3); + device_create_file(&new_client->dev, &dev_attr_temp_max1); + device_create_file(&new_client->dev, &dev_attr_temp_max2); + device_create_file(&new_client->dev, &dev_attr_temp_max3); + device_create_file(&new_client->dev, &dev_attr_vrm); + device_create_file(&new_client->dev, &dev_attr_vid); + device_create_file(&new_client->dev, &dev_attr_alarms); + + /* Initialize the LM85 chip */ + lm85_init_client(new_client); + return 0; + + /* Error out and cleanup code */ + ERROR1: + kfree(new_client); + ERROR0: + return err; +} + +int lm85_detach_client(struct i2c_client *client) +{ + i2c_detach_client(client); + kfree(client); + return 0; +} + + +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 */ + case ADM1027_REG_EXTEND_ADC1 : /* Read two bytes at once */ + res = i2c_smbus_read_byte_data(client, reg) & 0xff ; + res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ; + break ; + case ADT7463_REG_TMIN_CTL1 : /* Read WORD MSB, LSB */ + res = i2c_smbus_read_byte_data(client, reg) << 8 ; + res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ; + break ; + default: /* Read BYTE data */ + res = i2c_smbus_read_byte_data(client, reg); + break ; + } + + return res ; +} + +int lm85_write_value(struct i2c_client *client, u8 reg, int value) +{ + int res ; + + 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 */ + res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ; + res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ; + break ; + case ADT7463_REG_TMIN_CTL1 : /* Write WORD MSB, LSB */ + res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff); + res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ; + break ; + default: /* Write BYTE data */ + res = i2c_smbus_write_byte_data(client, reg, value); + break ; + } + + return res ; +} + +void lm85_init_client(struct i2c_client *client) +{ + int value; + struct lm85_data *data = i2c_get_clientdata(client); + + if (lm85debug) { + printk("lm85(%d): Initializing device\n", client->id); + } + + /* Warn if part was not "READY" */ + value = lm85_read_value(client, LM85_REG_CONFIG); + if (lm85debug) { + printk("lm85(%d): LM85_REG_CONFIG is: 0x%02x\n", client->id, value ); + } + if( value & 0x02 ) { + printk("lm85(%d): Client (%d,0x%02x) config is locked.\n", + client->id, + i2c_adapter_id(client->adapter), client->addr ); + }; + if( ! (value & 0x04) ) { + printk("lm85(%d): Client (%d,0x%02x) is not ready.\n", + client->id, + i2c_adapter_id(client->adapter), client->addr ); + }; + if( value & 0x10 + && ( data->type == adm1027 + || data->type == adt7463 ) ) { + printk("lm85(%d): Client (%d,0x%02x) VxI mode is set. " + "Please report this to the lm85 maintainer.\n", + client->id, + i2c_adapter_id(client->adapter), client->addr ); + }; + + /* WE INTENTIONALLY make no changes to the limits, + * offsets, pwms, fans and zones. If they were + * configured, we don't want to mess with them. + * If they weren't, the default is 100% PWM, no + * control and will suffice until 'sensors -s' + * can be run by the user. + */ + + /* Start monitoring */ + value = lm85_read_value(client, LM85_REG_CONFIG); + /* Try to clear LOCK, Set START, save everything else */ + value = (value & ~ 0x02) | 0x01 ; + if (lm85debug) { + printk("lm85(%d): Setting CONFIG to: 0x%02x\n", client->id, value ); + } + lm85_write_value(client, LM85_REG_CONFIG, value); + +} + +void lm85_update_client(struct i2c_client *client) +{ + struct lm85_data *data = i2c_get_clientdata(client); + int i; + + down(&data->update_lock); + + if ( !data->valid || + (jiffies - data->last_reading > LM85_DATA_INTERVAL ) ) { + /* Things that change quickly */ + + if (lm85debug) { + printk("lm85(%d): Reading sensor values\n", client->id); + } + /* Have to read extended bits first to "freeze" the + * more significant bits that are read later. + */ + if ( (data->type == adm1027) || (data->type == adt7463) ) { + data->extend_adc = + lm85_read_value(client, ADM1027_REG_EXTEND_ADC1); + } + + for (i = 0; i <= 4; ++i) { + data->in[i] = + lm85_read_value(client, LM85_REG_IN(i)); + } + + for (i = 0; i <= 3; ++i) { + data->fan[i] = + lm85_read_value(client, LM85_REG_FAN(i)); + } + + for (i = 0; i <= 2; ++i) { + data->temp[i] = + lm85_read_value(client, LM85_REG_TEMP(i)); + } + + for (i = 0; i <= 2; ++i) { + data->pwm[i] = + lm85_read_value(client, LM85_REG_PWM(i)); + } + + if ( data->type == adt7463 ) { + if( data->therm_total < ULONG_MAX - 256 ) { + data->therm_total += + lm85_read_value(client, ADT7463_REG_THERM ); + } + } + + data->alarms = lm85_read_value(client, LM85_REG_ALARM1); + + data->last_reading = jiffies ; + }; /* last_reading */ + + if ( !data->valid || + (jiffies - data->last_config > LM85_CONFIG_INTERVAL) ) { + /* Things that don't change often */ + + if (lm85debug) { + printk("lm85(%d): Reading config values\n", client->id); + } + for (i = 0; i <= 4; ++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)); + } + + for (i = 0; i <= 3; ++i) { + data->fan_min[i] = + lm85_read_value(client, LM85_REG_FAN_MIN(i)); + } + + for (i = 0; i <= 2; ++i) { + 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->vid = lm85_read_value(client, LM85_REG_VID); + + for (i = 0; i <= 2; ++i) { + int val ; + 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) & 0x0f ; + 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->smooth[0] = i & 0x0f ; + data->syncpwm3 = i & 0x10 ; /* Save PWM3 config */ + 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_SPIKE2); + data->smooth[1] = (i>>4) & 0x0f ; + data->smooth[2] = i & 0x0f ; + + i = lm85_read_value(client, LM85_REG_AFAN_HYST1); + data->zone[0].hyst = (i>>4) & 0x0f ; + data->zone[1].hyst = i & 0x0f ; + + i = lm85_read_value(client, LM85_REG_AFAN_HYST2); + data->zone[2].hyst = (i>>4) & 0x0f ; + + if ( (data->type == lm85b) || (data->type == lm85c) ) { + data->tach_mode = lm85_read_value(client, + LM85_REG_TACH_MODE ); + data->spinup_ctl = lm85_read_value(client, + LM85_REG_SPINUP_CTL ); + } else if ( (data->type == adt7463) || (data->type == adm1027) ) { + if ( data->type == adt7463 ) { + for (i = 0; i <= 2; ++i) { + data->oppoint[i] = lm85_read_value(client, + ADT7463_REG_OPPOINT(i) ); + } + data->tmin_ctl = lm85_read_value(client, + ADT7463_REG_TMIN_CTL1 ); + data->therm_limit = lm85_read_value(client, + ADT7463_REG_THERM_LIMIT ); + } + for (i = 0; i <= 2; ++i) { + data->temp_offset[i] = lm85_read_value(client, + ADM1027_REG_TEMP_OFFSET(i) ); + } + data->tach_mode = lm85_read_value(client, + ADM1027_REG_CONFIG3 ); + data->fan_ppr = lm85_read_value(client, + ADM1027_REG_FAN_PPR ); + } + + data->last_config = jiffies; + }; /* last_config */ + + data->valid = 1; + + up(&data->update_lock); +} + + +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); +} + +/* Thanks to Richard Barrington for adding the LM85 to sensors-detect. + * Thanks to Margit Schubert-While <margitsw at t-online.de> for help with + * post 2.7.0 CVS changes + */ +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Philip Pokorny <ppokorny at penguincomputing.com>, Margit Schubert-While <margitsw at t-online.de>"); +MODULE_DESCRIPTION("LM85-B, LM85-C driver"); +MODULE_PARM(lm85debug, "i"); +MODULE_PARM_DESC(lm85debug, "Enable debugging statements"); + +module_init(sm_lm85_init); +module_exit(sm_lm85_exit);
