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Subject[PATCH] More i2c driver changes for 2.5.70
From
Date
ChangeSet 1.1419.1.3, 2003/06/11 11:42:47-07:00, margitsw@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@dds.nl>
+ Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
+ Copyright (c) 2003 Margit Schubert-While <margitsw@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@t-online.de> for help with
+ * post 2.7.0 CVS changes
+ */
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@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);
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