#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
+#include <linux/jiffies.h>
#include <linux/i2c.h>
#include <linux/i2c-sensor.h>
#include <linux/i2c-vid.h>
static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
/* Insmod parameters */
-SENSORS_INSMOD_5(lm85b, lm85c, adm1027, adt7463, emc6d100);
+SENSORS_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102);
/* The LM85 registers */
#define LM85_VERSTEP_LM85B 0x62
#define LM85_VERSTEP_ADM1027 0x60
#define LM85_VERSTEP_ADT7463 0x62
+#define LM85_VERSTEP_ADT7463C 0x6A
#define LM85_VERSTEP_EMC6D100_A0 0x60
#define LM85_VERSTEP_EMC6D100_A1 0x61
+#define LM85_VERSTEP_EMC6D102 0x65
#define LM85_REG_CONFIG 0x40
#define EMC6D100_REG_ALARM3 0x7d
/* IN5, IN6 and IN7 */
-#define EMC6D100_REG_IN(nr) (0x70 + ((nr)-5))
-#define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr)-5) * 2)
-#define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr)-5) * 2)
+#define EMC6D100_REG_IN(nr) (0x70 + ((nr)-5))
+#define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr)-5) * 2)
+#define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr)-5) * 2)
+#define EMC6D102_REG_EXTEND_ADC1 0x85
+#define EMC6D102_REG_EXTEND_ADC2 0x86
+#define EMC6D102_REG_EXTEND_ADC3 0x87
+#define EMC6D102_REG_EXTEND_ADC4 0x88
#define LM85_ALARM_IN0 0x0001
#define LM85_ALARM_IN1 0x0002
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))
+
+#define INS_TO_REG(n,val) \
+ SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255)
+
+#define INSEXT_FROM_REG(n,val,ext,scale) \
+ SCALE((val)*(scale) + (ext),192*(scale),lm85_scaling[n])
+
+#define INS_FROM_REG(n,val) INSEXT_FROM_REG(n,val,0,1)
/* FAN speed is measured using 90kHz clock */
#define FAN_TO_REG(val) (SENSORS_LIMIT( (val)<=0?0: 5400000/(val),0,65534))
#define FAN_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:5400000/(val))
/* Temperature is reported in .001 degC increments */
-#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)+500)/1000,-127,127))
-#define TEMPEXT_FROM_REG(val,ext) ((val)*1000 + (ext)*250)
-#define TEMP_FROM_REG(val) (TEMPEXT_FROM_REG(val,0))
-#define EXTTEMP_TO_REG(val) (SENSORS_LIMIT((val)/250,-127,127))
+#define TEMP_TO_REG(val) \
+ SENSORS_LIMIT(SCALE(val,1000,1),-127,127)
+#define TEMPEXT_FROM_REG(val,ext,scale) \
+ SCALE((val)*scale + (ext),scale,1000)
+#define TEMP_FROM_REG(val) \
+ TEMPEXT_FROM_REG(val,0,1)
#define PWM_TO_REG(val) (SENSORS_LIMIT(val,0,255))
#define PWM_FROM_REG(val) (val)
-#define EXT_FROM_REG(val,sensor) (((val)>>(sensor * 2))&0x03)
/* ZONEs have the following parameters:
* Limit (low) temp, 1. degC
u8 pwm[3]; /* Register value */
u8 spinup_ctl; /* Register encoding, combined */
u8 tach_mode; /* Register encoding, combined */
- u16 extend_adc; /* Register value */
+ u8 temp_ext[3]; /* Decoded values */
+ u8 in_ext[8]; /* Decoded values */
+ u8 adc_scale; /* ADC Extended bits scaling factor */
u8 fan_ppr; /* Register value */
u8 smooth[3]; /* Register encoding */
u8 vid; /* Register value */
.detach_client = lm85_detach_client,
};
-/* Unique ID assigned to each LM85 detected */
-static int lm85_id;
-
/* 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);
- int val;
+ long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
- 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]);
up(&data->update_lock);
{
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- int val;
+ long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
- val = simple_strtol(buf, NULL, 10);
data->pwm[nr] = PWM_TO_REG(val);
lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
up(&data->update_lock);
static ssize_t show_in(struct device *dev, char *buf, int nr)
{
struct lm85_data *data = lm85_update_device(dev);
- return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in[nr]) );
+ return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr,
+ data->in[nr],
+ data->in_ext[nr],
+ data->adc_scale) );
}
static ssize_t show_in_min(struct device *dev, char *buf, int nr)
{
{
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- int val;
+ long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
- 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]);
up(&data->update_lock);
{
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- int val;
+ long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
- 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]);
up(&data->update_lock);
static ssize_t show_temp(struct device *dev, char *buf, int nr)
{
struct lm85_data *data = lm85_update_device(dev);
- return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp[nr]) );
+ return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr],
+ data->temp_ext[nr],
+ data->adc_scale) );
}
static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
{
{
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- int val;
+ long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
- 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]);
up(&data->update_lock);
{
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- int val;
+ long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
- 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]);
up(&data->update_lock);
{
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- int val;
+ long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
- val = simple_strtol(buf, NULL, 10);
data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
| ZONE_TO_REG(val) ;
lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
{
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- int val;
+ long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
- val = simple_strtol(buf, NULL, 10);
data->autofan[nr].min_pwm = PWM_TO_REG(val);
lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
data->autofan[nr].min_pwm);
{
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- int val;
+ long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
- val = simple_strtol(buf, NULL, 10);
data->autofan[nr].min_off = val;
lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
| data->syncpwm3
{
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- int val;
+ long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
- val = simple_strtol(buf, NULL, 10);
data->autofan[nr].freq = FREQ_TO_REG(val);
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
(data->zone[nr].range << 4)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- int min, val;
+ int min;
+ long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
- val = simple_strtol(buf, NULL, 10);
min = TEMP_FROM_REG(data->zone[nr].limit);
data->zone[nr].off_desired = TEMP_TO_REG(val);
data->zone[nr].hyst = HYST_TO_REG(min - val);
{
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- int val;
+ long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
- val = simple_strtol(buf, NULL, 10);
data->zone[nr].limit = TEMP_TO_REG(val);
lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
data->zone[nr].limit);
{
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- int min, val;
+ int min;
+ long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
min = TEMP_FROM_REG(data->zone[nr].limit);
- val = simple_strtol(buf, NULL, 10);
data->zone[nr].max_desired = TEMP_TO_REG(val);
data->zone[nr].range = RANGE_TO_REG(
val - min);
{
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- int val;
+ long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
- val = simple_strtol(buf, NULL, 10);
data->zone[nr].critical = TEMP_TO_REG(val);
lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
data->zone[nr].critical);
&& verstep == LM85_VERSTEP_ADM1027 ) {
kind = adm1027 ;
} else if( company == LM85_COMPANY_ANALOG_DEV
- && verstep == LM85_VERSTEP_ADT7463 ) {
+ && (verstep == LM85_VERSTEP_ADT7463
+ || verstep == LM85_VERSTEP_ADT7463C) ) {
kind = adt7463 ;
} else if( company == LM85_COMPANY_ANALOG_DEV
&& (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
* inputs read 0, then it's a '101.
*/
kind = emc6d100 ;
+ } else if( company == LM85_COMPANY_SMSC
+ && verstep == LM85_VERSTEP_EMC6D102) {
+ kind = emc6d102 ;
} else if( company == LM85_COMPANY_SMSC
&& (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
type_name = "adt7463";
} else if ( kind == emc6d100){
type_name = "emc6d100";
+ } else if ( kind == emc6d102 ) {
+ type_name = "emc6d102";
}
strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
/* Fill in the remaining client fields */
- new_client->id = lm85_id++;
data->type = kind;
data->valid = 0;
init_MUTEX(&data->update_lock);
- dev_dbg(&adapter->dev, "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);
-
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
goto ERROR1;
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 ;
down(&data->update_lock);
if ( !data->valid ||
- (jiffies - data->last_reading > LM85_DATA_INTERVAL ) ) {
+ time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
/* Things that change quickly */
dev_dbg(&client->dev, "Reading sensor values\n");
* 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);
+ int ext1 = lm85_read_value(client,
+ ADM1027_REG_EXTEND_ADC1);
+ int ext2 = lm85_read_value(client,
+ ADM1027_REG_EXTEND_ADC2);
+ int val = (ext1 << 8) + ext2;
+
+ for(i = 0; i <= 4; i++)
+ data->in_ext[i] = (val>>(i * 2))&0x03;
+
+ for(i = 0; i <= 2; i++)
+ data->temp_ext[i] = (val>>((i + 5) * 2))&0x03;
}
+ /* adc_scale is 2^(number of LSBs). There are 4 extra bits in
+ the emc6d102 and 2 in the adt7463 and adm1027. In all
+ other chips ext is always 0 and the value of scale is
+ irrelevant. So it is left in 4*/
+ data->adc_scale = (data->type == emc6d102 ) ? 16 : 4;
+
for (i = 0; i <= 4; ++i) {
data->in[i] =
lm85_read_value(client, LM85_REG_IN(i));
/* More alarm bits */
data->alarms |=
lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
+ } else if (data->type == emc6d102 ) {
+ /* Have to read LSB bits after the MSB ones because
+ the reading of the MSB bits has frozen the
+ LSBs (backward from the ADM1027).
+ */
+ int ext1 = lm85_read_value(client,
+ EMC6D102_REG_EXTEND_ADC1);
+ int ext2 = lm85_read_value(client,
+ EMC6D102_REG_EXTEND_ADC2);
+ int ext3 = lm85_read_value(client,
+ EMC6D102_REG_EXTEND_ADC3);
+ int ext4 = lm85_read_value(client,
+ EMC6D102_REG_EXTEND_ADC4);
+ data->in_ext[0] = ext3 & 0x0f;
+ data->in_ext[1] = ext4 & 0x0f;
+ data->in_ext[2] = (ext4 >> 4) & 0x0f;
+ data->in_ext[3] = (ext3 >> 4) & 0x0f;
+ data->in_ext[4] = (ext2 >> 4) & 0x0f;
+
+ data->temp_ext[0] = ext1 & 0x0f;
+ data->temp_ext[1] = ext2 & 0x0f;
+ data->temp_ext[2] = (ext1 >> 4) & 0x0f;
}
data->last_reading = jiffies ;
}; /* last_reading */
if ( !data->valid ||
- (jiffies - data->last_config > LM85_CONFIG_INTERVAL) ) {
+ time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) {
/* Things that don't change often */
dev_dbg(&client->dev, "Reading config values\n");
git://git.onelab.eu / linux-2.6.git / blobdiff