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lm-sensors/kernel/chips/lm85.c
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Jean Delvare 239b3d0344 Backport memory allocation reworking from Linux 2.6. 
git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2445 7894878c-1315-0410-8ee3-d5d059ff63e0
2004-04-17 17:20:01 +00:00

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/*
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>
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.
CHANGELOG
2002-11-13 First patch for LM85 functionality
2002-11-18 LM85 functionality mostly done
2002-12-02 Adding ADM1027 functionality
2002-12-06 Adding ADT7463 functionality
2003-01-09 Code cleanup.
Save reserved bits in case they are implemented
in a future chip. (Solve problem with lockups
on ADM1027 due to chip initialization)
Added chip initialization bypass option
2003-02-12 Add THERM asserted counts for ADT7463
Added #ifdef so we can compile against 2.6.5
without updating i2c-ids.h
2003-02-17 Prepare for switch to 2.7.0 development
Implement tmin_control for ADT7463
Expose THERM asserted counts to /proc
Code cleanup
2003-02-19 Working with Margit and LM_SENSORS developers
2003-02-23 Removed chip initialization entirely
Scale voltages in driver at Margit's request
Change PWM from 0-100% to 0-255 per LM sensors standard
2003-02-27 Documentation and code cleanups
Added this CHANGELOG
Print additional precision for temperatures and voltages
Many thanks to Margit Schubert-While and Brandt xxxxxx
for help testing this version
2003-02-28 More diagnostic messages regarding BIOS setup
2003-03-01 Added Interrupt mask register support.
2003-03-08 Fixed problem with pseudo 16-bit registers
Cleaned up some compiler warnings.
Fixed problem with Operating Point and THERM counting
2003-03-21 Initial support for EMC6D100 and EMC6D101 chips
2003-06-30 Add support for EMC6D100 extra voltage inputs.
*/
#include <linux/version.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/i2c-proc.h>
#include <linux/init.h>
#include "version.h"
#include "sensors_vid.h"
#ifndef I2C_DRIVERID_LM85
#define I2C_DRIVERID_LM85 1039
#endif
/* Addresses to scan */
static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, SENSORS_I2C_END };
static unsigned short normal_i2c_range[] = { SENSORS_I2C_END };
static unsigned int normal_isa[] = { SENSORS_ISA_END };
static unsigned int normal_isa_range[] = { SENSORS_ISA_END };
/* Insmod parameters */
SENSORS_INSMOD_5(lm85b, lm85c, adm1027, adt7463, emc6d100);
/* Many LM85 constants specified below */
/* 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 ADT7463_REG_TMIN_CTL 0x0136
#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_SMASK 0x0f
#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_EMC6D100_A0 0x60
#define LM85_VERSTEP_EMC6D100_A1 0x61
#define LM85_REG_CONFIG 0x40
#define LM85_REG_ALARM1 0x41
#define LM85_REG_ALARM2 0x42
#define LM85_REG_ALARM 0x0141
#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_INTMASK 0x0174
#define ADM1027_REG_EXTEND_ADC1 0x76
#define ADM1027_REG_EXTEND_ADC2 0x77
#define ADM1027_REG_EXTEND_ADC 0x0176
#define ADM1027_REG_CONFIG3 0x78
#define ADM1027_REG_FAN_PPR 0x7b
#define ADT7463_REG_THERM 0x79
#define ADT7463_REG_THERM_LIMIT 0x7A
#define ADT7463_REG_CONFIG4 0x7D
#define EMC6D100_REG_SFR 0x7c
#define EMC6D100_REG_ALARM3 0x7d
#define EMC6D100_REG_CONF 0x7f
#define EMC6D100_REG_INT_EN 0x80
/* 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)
/* 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,
3300, 1500, 1800, /* EMC6D100 */
};
#define SCALE(val,from,to) (((val)*(to) + ((from)/2))/(from))
#define INS_TO_REG(n,val) (SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255))
#define INSEXT_FROM_REG(n,val,ext) (SCALE((val)*4 + (ext),192*4,lm85_scaling[n]))
#define INS_FROM_REG(n,val) (INSEXT_FROM_REG(n,val,0))
/* 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 OPPOINT_TO_REG(val) (SENSORS_LIMIT(val,-127,127))
#define OPPOINT_FROM_REG(val) (val)
#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)
/* 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
*/
static int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
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 ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07])
#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)
/* sensors_vid.h defines vid_from_reg() */
#define VID_FROM_REG(val,vrm) (vid_from_reg((val),(vrm)))
#define ALARMS_FROM_REG(val) (val)
/* When converting to REG, we need to fixup the carry-over bit */
#define INTMASK_FROM_REG(val) (val)
#define INTMASK_TO_REG(val) (SENSORS_LIMIT((val)|((val)&0xff00?0x80:0),0,65535))
/* 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 this driver. This may be caused by APM/ACPI
* detecting an out-of-limit condition when we had the wrong
* limits set.
*/
/* 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 5 *minutes*
*/
#define LM85_DATA_INTERVAL (1 * HZ)
#define LM85_CONFIG_INTERVAL (5 * 60 * HZ)
/* For each registered LM85, we need to keep some data in memory. That
data is pointed to by client->data. The structure itself is
dynamically allocated, 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 i2c_client client;
struct semaphore lock;
int sysctl_id;
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 */
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 */
s8 oppoint[3]; /* Register value */
u16 tmin_ctl; /* Register value */
long therm_total; /* Cummulative therm count */
long therm_ovfl; /* Count of therm overflows */
u8 therm_limit; /* Register value */
u32 alarms; /* Register encoding, combined */
u32 alarm_mask; /* 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,
unsigned short flags, int kind);
static int lm85_detach_client(struct i2c_client *client);
static int lm85_read_value(struct i2c_client *client, u16 register);
static int lm85_write_value(struct i2c_client *client, u16 register, int value);
static void lm85_update_client(struct i2c_client *client);
static void lm85_init_client(struct i2c_client *client);
static void lm85_in(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results);
static void lm85_fan(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void lm85_temp(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void lm85_vid(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void lm85_vrm(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void lm85_alarms(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void lm85_pwm(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void lm85_zone(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void lm85_pwm_config(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void lm85_pwm_zone(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void lm85_smooth(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void lm85_spinup_ctl(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void lm85_tach_mode(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void adm1027_tach_mode(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void adm1027_temp_offset(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void adm1027_fan_ppr(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void adm1027_alarm_mask(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void adt7463_tmin_ctl(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void adt7463_therm_signal(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void emc6d100_in(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static struct i2c_driver lm85_driver = {
.owner = THIS_MODULE,
.name = "LM85 compatible sensor driver",
.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;
/* -- SENSORS SYSCTL START -- */
/* Common parameters */
#define LM85_SYSCTL_IN0 1000
#define LM85_SYSCTL_IN1 1001
#define LM85_SYSCTL_IN2 1002
#define LM85_SYSCTL_IN3 1003
#define LM85_SYSCTL_IN4 1004
#define LM85_SYSCTL_FAN1 1005
#define LM85_SYSCTL_FAN2 1006
#define LM85_SYSCTL_FAN3 1007
#define LM85_SYSCTL_FAN4 1008
#define LM85_SYSCTL_TEMP1 1009
#define LM85_SYSCTL_TEMP2 1010
#define LM85_SYSCTL_TEMP3 1011
#define LM85_SYSCTL_VID 1012
#define LM85_SYSCTL_ALARMS 1013
#define LM85_SYSCTL_PWM1 1014
#define LM85_SYSCTL_PWM2 1015
#define LM85_SYSCTL_PWM3 1016
#define LM85_SYSCTL_VRM 1017
#define LM85_SYSCTL_PWM_CFG1 1019
#define LM85_SYSCTL_PWM_CFG2 1020
#define LM85_SYSCTL_PWM_CFG3 1021
#define LM85_SYSCTL_PWM_ZONE1 1022
#define LM85_SYSCTL_PWM_ZONE2 1023
#define LM85_SYSCTL_PWM_ZONE3 1024
#define LM85_SYSCTL_ZONE1 1025
#define LM85_SYSCTL_ZONE2 1026
#define LM85_SYSCTL_ZONE3 1027
#define LM85_SYSCTL_SMOOTH1 1028
#define LM85_SYSCTL_SMOOTH2 1029
#define LM85_SYSCTL_SMOOTH3 1030
/* Vendor specific values */
#define LM85_SYSCTL_SPINUP_CTL 1100
#define LM85_SYSCTL_TACH_MODE 1101
/* Analog Devices variant of the LM85 */
#define ADM1027_SYSCTL_TACH_MODE 1200
#define ADM1027_SYSCTL_TEMP_OFFSET1 1201
#define ADM1027_SYSCTL_TEMP_OFFSET2 1202
#define ADM1027_SYSCTL_TEMP_OFFSET3 1203
#define ADM1027_SYSCTL_FAN_PPR 1204
#define ADM1027_SYSCTL_ALARM_MASK 1205
/* Analog Devices variant of the LM85/ADM1027 */
#define ADT7463_SYSCTL_TMIN_CTL1 1300
#define ADT7463_SYSCTL_TMIN_CTL2 1301
#define ADT7463_SYSCTL_TMIN_CTL3 1302
#define ADT7463_SYSCTL_THERM_SIGNAL 1303
/* SMSC variant of the LM85 */
#define EMC6D100_SYSCTL_IN5 1400
#define EMC6D100_SYSCTL_IN6 1401
#define EMC6D100_SYSCTL_IN7 1402
#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 0x08000
#define LM85_ALARM_IN6 0x10000
#define LM85_ALARM_IN7 0x20000
#define LM85_ALARM_IN5 0x40000
/* -- SENSORS SYSCTL END -- */
/* The /proc/sys entries */
/* These files are created for each detected LM85. This is just a template;
* The actual list is built from this and additional per-chip
* custom lists below. Note the XXX_LEN macros. These must be
* compile time constants because they will be used to allocate
* space for the final template passed to i2c_register_entry.
* We depend on the ability of GCC to evaluate expressions at
* compile time to turn these expressions into compile time
* constants, but this can generate a warning.
*/
static ctl_table lm85_common[] = {
{LM85_SYSCTL_IN0, "in0", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_in},
{LM85_SYSCTL_IN1, "in1", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_in},
{LM85_SYSCTL_IN2, "in2", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_in},
{LM85_SYSCTL_IN3, "in3", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_in},
{LM85_SYSCTL_IN4, "in4", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_in},
{LM85_SYSCTL_FAN1, "fan1", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_fan},
{LM85_SYSCTL_FAN2, "fan2", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_fan},
{LM85_SYSCTL_FAN3, "fan3", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_fan},
{LM85_SYSCTL_FAN4, "fan4", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_fan},
{LM85_SYSCTL_TEMP1, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_temp},
{LM85_SYSCTL_TEMP2, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_temp},
{LM85_SYSCTL_TEMP3, "temp3", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_temp},
{LM85_SYSCTL_VID, "vid", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_vid},
{LM85_SYSCTL_VRM, "vrm", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_vrm},
{LM85_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_alarms},
{LM85_SYSCTL_PWM1, "pwm1", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_pwm},
{LM85_SYSCTL_PWM2, "pwm2", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_pwm},
{LM85_SYSCTL_PWM3, "pwm3", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_pwm},
{LM85_SYSCTL_PWM_CFG1, "pwm1_cfg", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_pwm_config},
{LM85_SYSCTL_PWM_CFG2, "pwm2_cfg", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_pwm_config},
{LM85_SYSCTL_PWM_CFG3, "pwm3_cfg", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_pwm_config},
{LM85_SYSCTL_PWM_ZONE1, "pwm1_zone", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &lm85_pwm_zone},
{LM85_SYSCTL_PWM_ZONE2, "pwm2_zone", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &lm85_pwm_zone},
{LM85_SYSCTL_PWM_ZONE3, "pwm3_zone", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &lm85_pwm_zone},
{LM85_SYSCTL_ZONE1, "zone1", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_zone},
{LM85_SYSCTL_ZONE2, "zone2", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_zone},
{LM85_SYSCTL_ZONE3, "zone3", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_zone},
{LM85_SYSCTL_SMOOTH1, "smooth1", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_smooth},
{LM85_SYSCTL_SMOOTH2, "smooth2", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_smooth},
{LM85_SYSCTL_SMOOTH3, "smooth3", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &lm85_smooth},
{0}
};
#define CTLTBL_COMMON (sizeof(lm85_common)/sizeof(lm85_common[0]))
/* NOTE: tach_mode is a shared name, but implemented with
* different functions
*/
static ctl_table lm85_specific[] = {
{LM85_SYSCTL_SPINUP_CTL, "spinup_ctl", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &lm85_spinup_ctl},
{LM85_SYSCTL_TACH_MODE, "tach_mode", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &lm85_tach_mode},
/* {0} The doc generator needs this. */
};
#define CTLTBL_LM85 (sizeof(lm85_specific)/sizeof(lm85_specific[0]))
static ctl_table adm1027_specific[] = {
{ADM1027_SYSCTL_TACH_MODE, "tach_mode", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &adm1027_tach_mode},
{ADM1027_SYSCTL_TEMP_OFFSET1, "temp1_offset", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &adm1027_temp_offset},
{ADM1027_SYSCTL_TEMP_OFFSET2, "temp2_offset", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &adm1027_temp_offset},
{ADM1027_SYSCTL_TEMP_OFFSET3, "temp3_offset", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &adm1027_temp_offset},
{ADM1027_SYSCTL_FAN_PPR, "fan_ppr", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &adm1027_fan_ppr},
{ADM1027_SYSCTL_ALARM_MASK, "alarm_mask", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &adm1027_alarm_mask},
/* {0} The doc generator needs this. */
};
#define CTLTBL_ADM1027 (sizeof(adm1027_specific)/sizeof(adm1027_specific[0]))
static ctl_table adt7463_specific[] = {
{ADT7463_SYSCTL_TMIN_CTL1, "tmin_ctl1", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &adt7463_tmin_ctl},
{ADT7463_SYSCTL_TMIN_CTL2, "tmin_ctl2", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &adt7463_tmin_ctl},
{ADT7463_SYSCTL_TMIN_CTL3, "tmin_ctl3", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &adt7463_tmin_ctl},
{ADT7463_SYSCTL_THERM_SIGNAL, "therm_signal", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &adt7463_therm_signal},
/* {0} The doc generator needs this. */
};
#define CTLTBL_ADT7463 (sizeof(adt7463_specific)/sizeof(adt7463_specific[0]))
static ctl_table emc6d100_specific[] = {
{EMC6D100_SYSCTL_IN5, "in5", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &emc6d100_in},
{EMC6D100_SYSCTL_IN6, "in6", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &emc6d100_in},
{EMC6D100_SYSCTL_IN7, "in7", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &emc6d100_in},
/* {0} The doc generator needs this. */
};
#define CTLTBL_EMC6D100 (sizeof(emc6d100_specific)/sizeof(emc6d100_specific[0]))
#define MAX2(a,b) ((a)>(b)?(a):(b))
#define MAX3(a,b,c) ((a)>(b)?MAX2((a),(c)):MAX2((b),(c)))
#define MAX4(a,b,c,d) ((a)>(b)?MAX3((a),(c),(d)):MAX3((b),(c),(d)))
#define CTLTBL_MAX (CTLTBL_COMMON + MAX3(CTLTBL_LM85, CTLTBL_ADM1027+CTLTBL_ADT7463, CTLTBL_EMC6D100))
/* This function is called when:
* lm85_driver is inserted (when this module is loaded), for each
available adapter
* when a new adapter is inserted (and lm85_driver is still present) */
int lm85_attach_adapter(struct i2c_adapter *adapter)
{
return i2c_detect(adapter, &addr_data, lm85_detect);
}
/* This function is called by i2c_detect */
int lm85_detect(struct i2c_adapter *adapter, int address,
unsigned short flags, int kind)
{
int i;
int company, verstep ;
struct i2c_client *new_client;
struct lm85_data *data;
int err = 0;
const char *type_name = "";
struct ctl_table template[CTLTBL_MAX] ;
int template_used ;
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 (!(data = kmalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR0;
}
new_client = &data->client;
new_client->addr = address;
new_client->data = data;
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);
#ifdef DEBUG
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
);
#endif
/* If auto-detecting, Determine the chip type. */
if (kind <= 0) {
#ifdef DEBUG
printk("lm85: Autodetecting device at %d,0x%02x ...\n",
i2c_adapter_id(adapter), address );
#endif
if( company == LM85_COMPANY_NATIONAL
&& verstep == LM85_VERSTEP_LM85C ) {
kind = lm85c ;
} else if( company == LM85_COMPANY_NATIONAL
&& verstep == LM85_VERSTEP_LM85B ) {
kind = lm85b ;
} else if( company == LM85_COMPANY_NATIONAL
&& (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
printk("lm85: Detected National Semiconductor chip\n");
printk("lm85: Unrecgonized version/stepping 0x%02x"
" Defaulting to Generic 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 & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
printk("lm85: Detected Analog Devices chip\n");
printk("lm85: Unrecgonized version/stepping 0x%02x"
" Defaulting to Generic LM85.\n", verstep );
kind = any_chip ;
} else if( company == LM85_COMPANY_SMSC
&& (verstep == LM85_VERSTEP_EMC6D100_A0
|| verstep == LM85_VERSTEP_EMC6D100_A1) ) {
/* Unfortunately, we can't tell a '100 from a '101
* from the registers. Since a '101 is a '100
* in a package with fewer pins and therefore no
* 3.3V, 1.5V or 1.8V inputs, perhaps if those
* inputs read 0, then it's a '101.
*/
kind = emc6d100 ;
} else if( company == LM85_COMPANY_SMSC
&& (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
printk("lm85: Detected SMSC chip\n");
printk("lm85: Unrecognized version/stepping 0x%02x"
" Defaulting to Generic LM85.\n", verstep );
kind = any_chip ;
} else if( kind == any_chip
&& (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
printk("lm85: Generic LM85 Version 6 detected\n");
/* Leave kind as "any_chip" */
} else {
#ifdef DEBUG
printk("lm85: Autodetection failed\n");
#endif
/* Not an LM85 ... */
if( kind == any_chip ) { /* 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 */
switch (kind) {
case any_chip :
type_name = "lm85";
strcpy(new_client->name, "Generic LM85");
template_used = 0 ;
break ;
case lm85b :
type_name = "lm85b";
strcpy(new_client->name, "National LM85-B");
memcpy( template, lm85_specific, sizeof(lm85_specific) );
template_used = CTLTBL_LM85 ;
break ;
case lm85c :
type_name = "lm85c";
strcpy(new_client->name, "National LM85-C");
memcpy( template, lm85_specific, sizeof(lm85_specific) );
template_used = CTLTBL_LM85 ;
break ;
case adm1027 :
type_name = "adm1027";
strcpy(new_client->name, "Analog Devices ADM1027");
memcpy( template, adm1027_specific, sizeof(adm1027_specific) );
template_used = CTLTBL_ADM1027 ;
break ;
case adt7463 :
type_name = "adt7463";
strcpy(new_client->name, "Analog Devices ADT7463");
memcpy( template, adt7463_specific, sizeof(adt7463_specific) );
template_used = CTLTBL_ADT7463 ;
memcpy( template+template_used, adm1027_specific, sizeof(adm1027_specific) );
template_used += CTLTBL_ADM1027 ;
break ;
case emc6d100 :
type_name = "emc6d100";
strcpy(new_client->name, "SMSC EMC6D100");
memcpy(template, emc6d100_specific, sizeof(emc6d100_specific));
template_used = CTLTBL_EMC6D100 ;
break ;
default :
printk("lm85: Internal error, invalid kind (%d)!", kind);
err = -EFAULT ;
goto ERROR1;
}
/* Fill in the remaining client fields */
new_client->id = lm85_id++;
printk("lm85: Assigning ID %d to %s at %d,0x%02x\n",
new_client->id, new_client->name,
i2c_adapter_id(new_client->adapter),
new_client->addr
);
/* Housekeeping values */
data->type = kind;
data->valid = 0;
/* Set the VRM version */
data->vrm = LM85_INIT_VRM ;
/* Zero the accumulators */
data->therm_total = 0;
data->therm_ovfl = 0;
init_MUTEX(&data->update_lock);
/* Initialize the LM85 chip */
lm85_init_client(new_client);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
goto ERROR1;
/* Finish out the template */
memcpy( template + template_used, lm85_common, sizeof(lm85_common) );
/* Register a new directory entry with module sensors */
if ((i = i2c_register_entry(new_client,
type_name,
template)) < 0) {
err = i;
goto ERROR2;
}
data->sysctl_id = i;
return 0;
/* Error out and cleanup code */
ERROR2:
i2c_detach_client(new_client);
ERROR1:
kfree(data);
ERROR0:
return err;
}
int lm85_detach_client(struct i2c_client *client)
{
int err;
int id ;
id = client->id;
i2c_deregister_entry(((struct lm85_data *)(client->data))->sysctl_id);
if ((err = i2c_detach_client(client))) {
printk("lm85(%d): Client deregistration failed,"
" client not detached.\n", id );
return err;
}
kfree(client->data);
return 0;
}
int lm85_read_value(struct i2c_client *client, u16 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_ALARM : /* Read ALARM1 and ALARM2 */
case ADM1027_REG_INTMASK : /* Read MASK1 and MASK2 */
case ADM1027_REG_EXTEND_ADC : /* Read ADC1 and ADC2 */
reg &= 0xff ; /* Pseudo words have address + 0x0100 */
res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
res |= (i2c_smbus_read_byte_data(client, reg+1) & 0xff) << 8 ;
break ;
case ADT7463_REG_TMIN_CTL : /* Read WORD MSB, LSB */
reg &= 0xff ; /* Pseudo words have address + 0x0100 */
res = (i2c_smbus_read_byte_data(client, reg) & 0xff) << 8 ;
res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ;
break ;
default: /* Read BYTE data */
res = i2c_smbus_read_byte_data(client, reg & 0xff) & 0xff ;
break ;
}
return res ;
}
int lm85_write_value(struct i2c_client *client, u16 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) :
case ADM1027_REG_INTMASK :
/* NOTE: ALARM and ADC are read only, so not included here */
reg &= 0xff ; /* Pseudo words have address + 0x0100 */
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_CTL : /* Write WORD MSB, LSB */
reg &= 0xff ; /* Pseudo words have address + 0x0100 */
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 & 0xff, value);
break ;
}
return res ;
}
/* Called when we have found a new LM85. It should set limits, etc. */
void lm85_init_client(struct i2c_client *client)
{
int value;
struct lm85_data *data = client->data;
#ifdef DEBUG
printk("lm85(%d): Initializing device\n", client->id);
#endif
/* Warn if part was not "READY" */
value = lm85_read_value(client, LM85_REG_CONFIG);
#ifdef DEBUG
printk("lm85(%d): LM85_REG_CONFIG is: 0x%02x\n", client->id, value );
#endif
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( (data->type == adm1027 || data->type == adt7463)
&& (value & 0x10)
) {
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 );
};
/* See if SYNC to PWM3 is set */
if( data->type == adt7463
&& (lm85_read_value(client, LM85_REG_AFAN_SPIKE1) & 0x10)
) {
printk("lm85(%d): Sync to PWM3 is set. Expect PWM3 "
"to control fans 2, 3, and 4\n",
client->id );
};
/* See if PWM2 is #SMBALERT */
if( (data->type == adm1027 || data->type == adt7463)
&& (lm85_read_value(client, ADM1027_REG_CONFIG3) & 0x01)
) {
printk("lm85(%d): PWM2 is SMBALERT. PWM2 not available.\n",
client->id );
};
/* Check if 2.5V and 5V inputs are reconfigured */
if( data->type == adt7463 ) {
value = lm85_read_value(client, ADT7463_REG_CONFIG4);
if( value & 0x01 ) {
printk("lm85(%d): 2.5V input (in0) is SMBALERT. "
"in0 not available.\n", client->id );
};
if( value & 0x02 ) {
printk("lm85(%d): 5V input (in3) is THERM. "
"in3 not available.\n", client->id );
}
};
/* FIXME? Display EMC6D100 config info? */
/* 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) & 0xff ;
#ifdef DEBUG
printk("lm85(%d): Setting CONFIG to: 0x%02x\n", client->id, value );
#endif
lm85_write_value(client, LM85_REG_CONFIG, value);
}
void lm85_update_client(struct i2c_client *client)
{
struct lm85_data *data = client->data;
int i;
down(&data->update_lock);
if (!data->valid
|| (jiffies - data->last_reading > LM85_DATA_INTERVAL )) {
/* Things that change quickly */
#ifdef DEBUG
printk("lm85(%d): Reading sensor values\n", client->id);
#endif
/* Have to read extended bits first to "freeze" the
* more significant bits that are read later.
*/
switch( data->type ) {
case adm1027 :
case adt7463 :
data->extend_adc =
lm85_read_value(client, ADM1027_REG_EXTEND_ADC);
break ;
default :
data->extend_adc = 0 ;
break ;
}
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));
}
data->alarms = lm85_read_value(client, LM85_REG_ALARM);
switch( ((struct lm85_data *)(client->data))->type ) {
case adt7463 :
/* REG_THERM code duplicated in therm_signal() */
i = lm85_read_value(client, ADT7463_REG_THERM);
if( data->therm_total < LONG_MAX - 256 ) {
data->therm_total += i ;
}
if( i >= 255 ) {
++data->therm_ovfl ;
}
break ;
case emc6d100 :
/* Three more voltage sensors */
for (i = 5; i <= 7; ++i) {
data->in[i] =
lm85_read_value(client, EMC6D100_REG_IN(i));
}
/* More alarm bits */
data->alarms |=
lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
break ;
default : break ; /* no warnings */
}
data->last_reading = jiffies ;
}; /* last_reading */
if (!data->valid
|| (jiffies - data->last_config > LM85_CONFIG_INTERVAL) ) {
/* Things that don't change often */
#ifdef DEBUG
printk("lm85(%d): Reading config values\n", client->id);
#endif
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 ;
data->autofan[1].min_off = i & 0x40 ;
data->autofan[2].min_off = i & 0x80 ;
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 ;
switch( ((struct lm85_data *)(client->data))->type ) {
case lm85b :
case lm85c :
data->tach_mode = lm85_read_value(client,
LM85_REG_TACH_MODE );
data->spinup_ctl = lm85_read_value(client,
LM85_REG_SPINUP_CTL );
break ;
case 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_CTL );
data->therm_limit = lm85_read_value(client,
ADT7463_REG_THERM_LIMIT );
/* FALL THROUGH */
case adm1027 :
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->alarm_mask = lm85_read_value(client,
ADM1027_REG_INTMASK );
break ;
case emc6d100 :
for (i = 5; i <= 7; ++i) {
data->in_min[i] =
lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
data->in_max[i] =
lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
}
break ;
default : break ; /* no warnings */
}
data->last_config = jiffies;
}; /* last_config */
data->valid = 1;
up(&data->update_lock);
}
/* The next functions are the call-back functions of the /proc/sys and
sysctl files. Which function is used is defined in the ctl_table in
the extra1 field.
Each function must return the magnitude (power of 10 to divide the data
with) if it is called with operation==SENSORS_PROC_REAL_INFO. It must
put a maximum of *nrels elements in results reflecting the data of this
file, and set *nrels to the number it actually put in it, if operation==
SENSORS_PROC_REAL_READ. Finally, it must get upto *nrels elements from
results and write them to the chip, if operations==SENSORS_PROC_REAL_WRITE.
*/
void lm85_in(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int nr = ctl_name - LM85_SYSCTL_IN0;
if (nr < 0 || nr > 4)
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 3; /* 1.000 */
else if (operation == SENSORS_PROC_REAL_READ) {
int ext = 0 ;
lm85_update_client(client);
ext = EXT_FROM_REG(data->extend_adc, nr);
results[0] = INS_FROM_REG(nr,data->in_min[nr]);
results[1] = INS_FROM_REG(nr,data->in_max[nr]);
results[2] = INSEXT_FROM_REG(nr,data->in[nr],ext);
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
if (*nrels_mag > 1) {
data->in_max[nr] = INS_TO_REG(nr,results[1]);
lm85_write_value(client, LM85_REG_IN_MAX(nr),
data->in_max[nr]);
}
if (*nrels_mag > 0) {
data->in_min[nr] = INS_TO_REG(nr,results[0]);
lm85_write_value(client, LM85_REG_IN_MIN(nr),
data->in_min[nr]);
}
up(&data->update_lock);
}
}
void lm85_fan(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int nr = ctl_name - LM85_SYSCTL_FAN1 ;
if (nr < 0 || nr > 3)
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
results[0] = FAN_FROM_REG(data->fan_min[nr]);
results[1] = FAN_FROM_REG(data->fan[nr]);
*nrels_mag = 2;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
if (*nrels_mag > 0) {
data->fan_min[nr] = FAN_TO_REG(results[0]);
lm85_write_value(client, LM85_REG_FAN_MIN(nr),
data->fan_min[nr]);
}
up(&data->update_lock);
}
}
void lm85_temp(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int nr = ctl_name - LM85_SYSCTL_TEMP1 ;
if (nr < 0 || nr > 2)
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 2;
else if (operation == SENSORS_PROC_REAL_READ) {
int ext = 0 ;
lm85_update_client(client);
/* +5 for offset of temp data in ext reg */
ext = EXT_FROM_REG(data->extend_adc, nr+5);
results[0] = TEMP_FROM_REG(data->temp_min[nr]);
results[1] = TEMP_FROM_REG(data->temp_max[nr]);
results[2] = TEMPEXT_FROM_REG(data->temp[nr],ext);
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
if (*nrels_mag > 1) {
data->temp_max[nr] = TEMP_TO_REG(results[1]);
lm85_write_value(client, LM85_REG_TEMP_MAX(nr),
data->temp_max[nr]);
}
if (*nrels_mag > 0) {
data->temp_min[nr] = TEMP_TO_REG(results[0]);
lm85_write_value(client, LM85_REG_TEMP_MIN(nr),
data->temp_min[nr]);
}
up(&data->update_lock);
}
}
void lm85_pwm(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int nr = ctl_name - LM85_SYSCTL_PWM1 ;
int pwm_zone ;
if (nr < 0 || nr > 2)
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
results[0] = PWM_FROM_REG(data->pwm[nr]);
pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
/* PWM "enabled" if not off (0) nor on (-1) */
results[1] = pwm_zone != 0 && pwm_zone != -1 ;
*nrels_mag = 2;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
/* PWM enable is read-only */
if (*nrels_mag > 0) {
data->pwm[nr] = PWM_TO_REG(results[0]);
lm85_write_value(client, LM85_REG_PWM(nr),
data->pwm[nr]);
}
up(&data->update_lock);
}
}
void lm85_vid(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
if( ctl_name != LM85_SYSCTL_VID )
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 3;
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
results[0] = VID_FROM_REG((data->vid)&0x3f,data->vrm);
*nrels_mag = 1;
}
}
void lm85_vrm(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
if( ctl_name != LM85_SYSCTL_VRM )
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 1;
else if (operation == SENSORS_PROC_REAL_READ) {
results[0] = data->vrm ;
*nrels_mag = 1;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
if (*nrels_mag > 0) {
data->vrm = results[0] ;
}
up(&data->update_lock);
}
}
void lm85_alarms(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
if( ctl_name != LM85_SYSCTL_ALARMS )
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
results[0] = ALARMS_FROM_REG(data->alarms);
*nrels_mag = 1;
}
}
void lm85_spinup_ctl(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int old;
if( ctl_name != LM85_SYSCTL_SPINUP_CTL )
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
results[0] = (data->spinup_ctl & 1) != 0 ;
results[1] = (data->spinup_ctl & 2) != 0 ;
results[2] = (data->spinup_ctl & 4) != 0 ;
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
old = data->spinup_ctl ;
if (*nrels_mag > 2) {
old = (old & (~4)) | (results[2]?4:0) ;
}
if (*nrels_mag > 1) {
old = (old & (~2)) | (results[1]?2:0) ;
}
if (*nrels_mag > 0) {
old = (old & (~1)) | (results[0]?1:0) ;
lm85_write_value(client, LM85_REG_SPINUP_CTL, old);
data->spinup_ctl = old ;
}
up(&data->update_lock);
}
}
void lm85_tach_mode(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int old;
/* Tach Mode 1, Tach Mode 2, Tach Mode 3 & 4 */
if( ctl_name != LM85_SYSCTL_TACH_MODE )
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
results[0] = (data->tach_mode & 0x03) ;
results[1] = (data->tach_mode & 0x0c) >> 2 ;
results[2] = (data->tach_mode & 0x30) >> 4 ;
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
old = data->tach_mode ;
if (*nrels_mag > 2) {
old = (old & (~0x30)) | ((results[2]&3) << 4) ;
}
if (*nrels_mag > 1) {
old = (old & (~0x0c)) | ((results[1]&3) << 2) ;
}
if (*nrels_mag > 0) {
old = (old & (~0x03)) | (results[0]&3) ;
lm85_write_value(client, LM85_REG_TACH_MODE, old);
data->tach_mode = old ;
}
up(&data->update_lock);
}
}
void adm1027_tach_mode(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int old;
/* Tach/DC 1, Tach/DC 2, Tach/DC 3, Tach/DC 4 */
if( ctl_name != ADM1027_SYSCTL_TACH_MODE )
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
results[0] = (data->tach_mode & 0x10) != 0 ;
results[1] = (data->tach_mode & 0x20) != 0 ;
results[2] = (data->tach_mode & 0x40) != 0 ;
results[3] = (data->tach_mode & 0x80) != 0 ;
*nrels_mag = 4;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
old = data->tach_mode ;
if (*nrels_mag > 3) {
old = (old & (~0x80)) | (results[3] ? 0x80 : 0) ;
}
if (*nrels_mag > 2) {
old = (old & (~0x40)) | (results[2] ? 0x40 : 0) ;
}
if (*nrels_mag > 1) {
old = (old & (~0x20)) | (results[1] ? 0x20 : 0) ;
}
if (*nrels_mag > 0) {
old = (old & (~0x10)) | (results[0] ? 0x10 : 0) ;
/* Enable fast measurements if any TACH's are DC */
old = (old & (~0x08)) | ((old&0xf0) ? 0x08 : 0) ;
lm85_write_value(client, ADM1027_REG_CONFIG3, old);
data->tach_mode = old ;
}
up(&data->update_lock);
}
}
void lm85_pwm_config(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int nr = ctl_name - LM85_SYSCTL_PWM_CFG1 ;
/* Spinup, min PWM, PWM Frequency, min below limit, Invert */
if (nr < 0 || nr > 2)
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 1;
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
results[0] = SPINUP_FROM_REG(data->autofan[nr].config);
results[1] = PWM_FROM_REG(data->autofan[nr].min_pwm)*10;
results[2] = FREQ_FROM_REG(data->autofan[nr].freq);
results[3] = data->autofan[nr].min_off ? 10 : 0 ;
results[4] = (data->autofan[nr].config & 0x10) ? 10 : 0 ;
*nrels_mag = 5;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
int old_config ;
down(&data->update_lock);
old_config = data->autofan[nr].config ;
if (*nrels_mag > 4) {
old_config = (old_config & (~0x10)) | (results[4]?0x10:0) ;
}
if (*nrels_mag > 3) {
data->autofan[nr].min_off = results[3] != 0 ;
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)
);
}
if (*nrels_mag > 2) {
data->autofan[nr].freq = FREQ_TO_REG(results[2]) ;
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
(data->zone[nr].range << 4)
| data->autofan[nr].freq
);
}
if (*nrels_mag > 1) {
data->autofan[nr].min_pwm = PWM_TO_REG((results[1]+5)/10);
lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
data->autofan[nr].min_pwm
);
}
if (*nrels_mag > 0) {
old_config = (old_config & (~0x07)) | SPINUP_TO_REG(results[0]) ;
lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), old_config);
data->autofan[nr].config = old_config ;
}
up(&data->update_lock);
}
}
void lm85_smooth(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int nr = ctl_name - LM85_SYSCTL_SMOOTH1 ;
if (nr < 0 || nr > 2)
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 1;
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
results[0] = SMOOTH_FROM_REG(data->smooth[nr]);
*nrels_mag = 1;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
if( *nrels_mag > 0 ) {
data->smooth[nr] = SMOOTH_TO_REG(results[0]);
}
if( nr == 0 ) {
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)
);
} else {
lm85_write_value(client, LM85_REG_AFAN_SPIKE2,
(data->smooth[1] << 4) | data->smooth[2]);
}
up(&data->update_lock);
}
}
void lm85_zone(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int nr = ctl_name - LM85_SYSCTL_ZONE1 ;
/* Limit, Hysteresis (neg), Range, Critical */
if (nr < 0 || nr > 2)
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 1;
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
results[0] = TEMP_FROM_REG(data->zone[nr].limit) / 10;
results[1] = HYST_FROM_REG(data->zone[nr].hyst);
results[2] = RANGE_FROM_REG(data->zone[nr].range);
results[3] = TEMP_FROM_REG(data->zone[nr].critical) / 10;
*nrels_mag = 4;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
if (*nrels_mag > 3) {
data->zone[nr].critical = TEMP_TO_REG(results[3]*10);
lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
data->zone[nr].critical );
}
if (*nrels_mag > 2) {
data->zone[nr].range = RANGE_TO_REG(results[2]);
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
(data->zone[nr].range << 4)
| data->autofan[nr].freq
);
}
if (*nrels_mag > 1) {
data->zone[nr].hyst = HYST_TO_REG(results[1]);
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)
);
}
}
if (*nrels_mag > 0) {
data->zone[nr].limit = TEMP_TO_REG(results[0]*10);
lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
data->zone[nr].limit
);
}
up(&data->update_lock);
}
}
void lm85_pwm_zone(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int nr = ctl_name - LM85_SYSCTL_PWM_ZONE1 ;
if (nr < 0 || nr > 2)
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
results[0] = ZONE_FROM_REG(data->autofan[nr].config);
*nrels_mag = 1;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
if (*nrels_mag > 0) {
data->autofan[nr].config =
(data->autofan[nr].config & (~0xe0))
| ZONE_TO_REG(results[0]) ;
lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
data->autofan[nr].config);
}
up(&data->update_lock);
}
}
void adm1027_temp_offset(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int nr = ctl_name - ADM1027_SYSCTL_TEMP_OFFSET1 ;
if (nr < 0 || nr > 2)
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 2;
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
switch( data->type ) {
case adm1027 :
default :
results[0] = TEMP_FROM_REG(data->temp_offset[nr]);
break ;
case adt7463 :
results[0] = TEMPEXT_FROM_REG(0,data->temp_offset[nr]);
break ;
}
*nrels_mag = 1;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
if (*nrels_mag > 0) {
switch( data->type ) {
case adm1027 :
default :
data->temp_offset[nr] = TEMP_TO_REG(results[0]);
break ;
case adt7463 :
data->temp_offset[nr] = EXTTEMP_TO_REG(results[0]);
break ;
};
lm85_write_value(client, ADM1027_REG_TEMP_OFFSET(nr),
data->temp_offset[nr]);
}
up(&data->update_lock);
}
}
void adm1027_fan_ppr(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int old ;
if (ctl_name != ADM1027_SYSCTL_FAN_PPR)
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
results[0] = PPR_FROM_REG(data->fan_ppr,0);
results[1] = PPR_FROM_REG(data->fan_ppr,1);
results[2] = PPR_FROM_REG(data->fan_ppr,2);
results[3] = PPR_FROM_REG(data->fan_ppr,3);
*nrels_mag = 4;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
old = data->fan_ppr ;
if (*nrels_mag > 3) {
old = (old & ~PPR_MASK(3)) | PPR_TO_REG(results[3],3);
};
if (*nrels_mag > 2) {
old = (old & ~PPR_MASK(2)) | PPR_TO_REG(results[2],2);
};
if (*nrels_mag > 1) {
old = (old & ~PPR_MASK(1)) | PPR_TO_REG(results[1],1);
};
if (*nrels_mag > 0) {
old = (old & ~PPR_MASK(0)) | PPR_TO_REG(results[0],0);
lm85_write_value(client, ADM1027_REG_FAN_PPR, old);
data->fan_ppr = old ;
}
up(&data->update_lock);
}
}
void adm1027_alarm_mask(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
if( ctl_name != ADM1027_SYSCTL_ALARM_MASK )
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
results[0] = INTMASK_FROM_REG(data->alarm_mask);
*nrels_mag = 1;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
if (*nrels_mag > 0) {
data->alarm_mask = INTMASK_TO_REG(results[0]);
lm85_write_value(client, ADM1027_REG_INTMASK,
data->alarm_mask);
}
up(&data->update_lock);
}
}
void adt7463_tmin_ctl(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int nr = ctl_name - ADT7463_SYSCTL_TMIN_CTL1 ;
u16 old ;
if (nr < 0 || nr > 2)
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
old = data->tmin_ctl ;
results[0] = (old & ( 0x2000 << nr )) != 0 ;
results[1] = (old >> (nr*3)) & 0x07 ;
results[2] = (old & ( 0x0400 << nr )) != 0 ;
results[3] = OPPOINT_FROM_REG(data->oppoint[nr]);
*nrels_mag = 4;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
old = data->tmin_ctl ;
if (*nrels_mag > 3) {
data->oppoint[nr] = OPPOINT_TO_REG(results[3]);
lm85_write_value(client, ADT7463_REG_OPPOINT(nr),
data->oppoint[nr]);
};
if (*nrels_mag > 2) {
if( results[2] ) {
old |= (0x0400 << nr) ;
} else {
old &= ~(0x0400 << nr) ;
}
};
if (*nrels_mag > 1) {
old &= ~(0x07 << (nr*3)) ;
old |= (results[1] & 0x07) << (nr*3) ;
};
if (*nrels_mag > 0) {
if( results[0] ) {
old |= 0x2000 << nr ;
} else {
old &= ~(0x2000 << nr) ;
}
lm85_write_value(client, ADT7463_REG_TMIN_CTL, old);
data->tmin_ctl = old ;
}
up(&data->update_lock);
}
}
void adt7463_therm_signal(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int counts ;
if (ctl_name != ADT7463_SYSCTL_THERM_SIGNAL)
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
/* Don't call update_client here because
* ADT7463_REG_THERM has to be read every
* 5 seconds to prevent lost counts
*/
down(&data->update_lock);
counts = lm85_read_value(client, ADT7463_REG_THERM) & 0xff;
if( data->therm_total < LONG_MAX - 256 ) {
data->therm_total += counts ;
}
if( counts >= 255 ) {
++data->therm_ovfl ;
}
up(&data->update_lock);
results[0] = data->therm_limit ;
results[1] = data->therm_total ;
results[2] = data->therm_ovfl ;
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
/* therm_total and therm_ovfl are read only */
if (*nrels_mag > 0) {
data->therm_limit = SENSORS_LIMIT(results[0],0,255);
lm85_write_value(client, ADT7463_REG_THERM_LIMIT,
data->therm_limit);
};
up(&data->update_lock);
}
}
void emc6d100_in(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct lm85_data *data = client->data;
int nr = ctl_name - EMC6D100_SYSCTL_IN5 +5;
if (nr < 5 || nr > 7)
return ; /* ERROR */
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 3; /* 1.000 */
else if (operation == SENSORS_PROC_REAL_READ) {
lm85_update_client(client);
results[0] = INS_FROM_REG(nr,data->in_min[nr]);
results[1] = INS_FROM_REG(nr,data->in_max[nr]);
results[2] = INS_FROM_REG(nr,data->in[nr]);
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
down(&data->update_lock);
if (*nrels_mag > 1) {
data->in_max[nr] = INS_TO_REG(nr,results[1]);
lm85_write_value(client, EMC6D100_REG_IN_MAX(nr),
data->in_max[nr]);
}
if (*nrels_mag > 0) {
data->in_min[nr] = INS_TO_REG(nr,results[0]);
lm85_write_value(client, EMC6D100_REG_IN_MIN(nr),
data->in_min[nr]);
}
up(&data->update_lock);
}
}
static int __init sm_lm85_init(void)
{
printk("lm85: Version %s (%s)\n", LM_VERSION, LM_DATE);
printk("lm85: See http://www.penguincomputing.com/lm_sensors for more info.\n" );
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");
MODULE_DESCRIPTION("LM85-B, LM85-C driver");
module_init(sm_lm85_init);
module_exit(sm_lm85_exit);
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