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pwm and smart guardian fan patch from

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Michael Hufer <michael.hufer@freenet.de>

------------------------

> First, I added a new mod parameter "reset_it87" which controls whether
> or not the chip is reset on module load (modprobe it87 reset_it=1,
> default) or not(modprobe it87 reset_it87=0).
> Since this worked out quiet nicely I decided to go one step further
> and also add the chips manual and automatic temperature controlled fan
> speed features (PWM etc.).
>
> Finally I also updated the doc to document the new features.
>
> Attached is a diff against the current cvs version.

------------------------
           Subject:
            Re: fan speed for it87?? chips added
      Date:
            Fri, 26 Sep 2003 23:28:35 +0200
      From:
            Michael Hufer <michael.hufer@freenet.de>
        To:
            sensors@Stimpy.netroedge.com, Jean Delvare <khali@linux-fr.org>

On Friday 26 September 2003 22:40, Jean Delvare wrote:
> > I found and fixed the little problem I had with the original chip
> > initialization. I can now load the module with reset_it87=0 and
> > init=1 without messing up the settings of the power supply fan
> > from the BIOS. It was quite simple after all.
>
> I'm interested in details, can you tell us what it was?

Sure, it actually was something I introduced myself :-(. I initialized the
fan_ctl register with  (read_value & 0x8f | 0x77) to enable the smart
guardian feature for all 3 fans. But the power supply fan does not support
pwm. It can only be operated in on/off mode, i.e. bit 0 must be clear. I
switched it back to the original  (rv & 0x8f | 0x70 ) and everything is back
to working.

> > Do you want me to send the latest diff?
>
> Sure I want.

 Here it comes.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2033 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Mark D. Studebaker committed 2003-10-28 02:20:31 +00:00
1 parent fac06872b8
commit 34076ded72
2 files changed
+374 -84
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doc/chips/it87
+67 -1
View File
@@ -62,7 +62,18 @@ Module Parameters
thermistor diode thermistor 0x2a ** default
thermistor thermistor diode 0x1c
thermistor thermistor thermistor 0x38
* reset_it87: integer 1 if the registers of the chip should be reset at
module load time, 0 to not reset the registers. Default is 0.
* init: integer 1 if the registers should be initialized with the module's
default values, 0 skip the initialization. Default is 1.
On some boards (e.g. the Shuttle FN41 from the Shuttle XPC Barebone)
the BIOS configures it87's smart temperature monitoring fan power
adjust feature. A reset/init would unset this and set the power of the
fan to maximum speed (which is very noisy). Set 'reset_it87=0' to
keep the registers at the preconfigured values.
Note: If the registers weren't preconfigured for monitoring by the BIOS
the monitoring will not work if you do not reset and initialize the chip's
registers at module load time.
Description
-----------
@@ -112,6 +123,61 @@ miss once-only alarms.
The IT87xx only updates its values each 1.5 seconds; reading it more often
will do no harm, but will return 'old' values.
The fan speed control features can be enabled by setting the bits 0-2 of
the fan_ctl register to 1. (Note: bits 6-4 of this register must be set to
1 to enable the fan monitoring).
0x40 : enable fan speed monitoring for fan3
0x20 : enable fan speed monitoring for fan2
0x10 : enable fan speed monitoring for fan1
0x04 : enable fan smart guardian mode for fan3
0x02 : enable fan smart guardian mode for fan2
0x01 : enable fan smart guardian mode for fan1
If a fans smart guardian bit is not set this fan is in on-off mode
it can be switched on or off by setting/clearing the corresponding bit 0-2
of the second fan control register fan_on_off. This register has no effect if
a fan is in smart guardian mode.
0x04 : fan3 is on
0x02 : fan2 is on
0x01 : fan1 is on
Bit 7 of the pwm[1-3] registers enables/disables the chips automatic
temperature control mode for the specified fan. If Bit 7 is set the bits
1 and 0 encode the number of the temperature sensor used for this feature.
Possible register values are:
0x00-0x7f direct power control for the fan speed
0x80 automatic smart guardian mode use temperatur sensor 1,
0x81 automatic smart guardian mode use temperatur sensor 2,
0x82 automatic smart guardian mode use temperatur sensor 3
In automatic smart guardian mode pwm values for low, medium and high speed
can be set in sg_pwm[1-3]. The temperature limits for fan off, low, medium,
hi speed and over temperature are set in sg_tl[1-3]. While the sensors
temperature is between the low and medium speed value the fan will run in
low speed. When the sensors temperature is between the medium and high speed
value the fan spins in medium speed. When the sensors temperature is between
the high speed and over temperature value the fan spins in high speed.
If the sensors temperature is higher than the over temperature limit the
fan will spin with the highest possible speed.
Example:
The preconfigured (BIOS set) values of the Shuttle XPC SN41G2 Barebone.
The MB uses temp2 to monitor the CPU temperature and fan3 as the fan for their
special ICE heatpipe cooling system.
---
$ cat fan_ctl
116
$ cat tan_on_off
215
$ cat pwm3
129
$ cat sg_tl3
16.0 16.0 48.0 54.0 58.0
$ cat sg_pwm3
3 4 9
---
Explanation:
fan_ctl -> 116 = 0x74 = 01110100 : fan monitoring on for all fans, and fan3 is in smart guardian mode.
fan_on_off -> 215 = 0xd7 =11010111 : all fans are on this setting is ignored for fan3 which is in smart guardian mode
pwm3 -> 129 = 0x81 = 10000001 : fan3 is in automatic mode and uses temp2 for speed control
sg_tl3 -> 16.0 16.0 48.0 54.0 58.0 : off, low, med, high, and over temperature limits of fan3
sg_pwm3 -> 3 4 9 : pwm values for low, medium and high fan speed of fan3.
Chip features
-------------
kernel/chips/it87.c
+307 -83
View File
@@ -31,6 +31,13 @@
type at module load time.
*/
/*
michael.hufer@gmx.de Michael Hufer 09/07/03
Modified configure (enable/disable) chip reset at module load time.
Added ability to read and set fan pwm registers and the smart
guardian (sg) features of the chip.
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/proc_fs.h>
@@ -65,6 +72,12 @@ static int update_vbat = 0;
/* Enable Temp3 as thermal resistor */
static int temp_type = 0x2a;
/* Reset the registers on init */
static int reset_it87 = 0;
/* Initialize the registers to default values on init */
static int init = 1;
/* Many IT87 constants specified below */
/* Length of ISA address segment */
@@ -85,12 +98,25 @@ static int temp_type = 0x2a;
#define IT87_REG_VID 0x0a
#define IT87_REG_FAN_DIV 0x0b
/* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */
#define IT87_REG_FAN(nr) (0x0c + (nr))
#define IT87_REG_FAN_MIN(nr) (0x0f + (nr))
#define IT87_REG_FAN_CTRL 0x13
/* pwm and smart guardian registers */
#define IT87_REG_FAN_ONOFF 0x14
#define IT87_REG_PWM(nr) (0x14 + (nr))
#define IT87_REG_SG_TL_OFF(nr) (0x58 + (nr)*8)
#define IT87_REG_SG_TL_LOW(nr) (0x59 + (nr)*8)
#define IT87_REG_SG_TL_MED(nr) (0x5a + (nr)*8)
#define IT87_REG_SG_TL_HI(nr) (0x5b + (nr)*8)
#define IT87_REG_SG_TL_OVR(nr) (0x5c + (nr)*8)
#define IT87_REG_SG_PWM_LOW(nr) (0x5d + (nr)*8)
#define IT87_REG_SG_PWM_MED(nr) (0x5e + (nr)*8)
#define IT87_REG_SG_PWM_HI(nr) (0x5f + (nr)*8)
/* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */
#define IT87_REG_VIN(nr) (0x20 + (nr))
#define IT87_REG_TEMP(nr) (0x28 + (nr))
@@ -133,7 +159,17 @@ static inline u8 FAN_TO_REG(long rpm, int div)
205-(val)*5)
#define ALARMS_FROM_REG(val) (val)
#define DIV_TO_REG(val) ((val)==8?3:(val)==4?2:(val)==1?0:1)
extern inline u8 DIV_TO_REG(long val)
{
u8 i;
for( i = 0; i <= 7; i++ )
{
if( val>>i == 1 )
return i;
}
return 1;
}
/*#define DIV_TO_REG(val) ((val)==8?3:(val)==4?2:(val)==1?0:1)*/
#define DIV_FROM_REG(val) (1 << (val))
/* Initial limits. Use the config file to set better limits. */
@@ -186,12 +222,23 @@ static inline u8 FAN_TO_REG(long rpm, int div)
#define IT87_INIT_FAN_MIN_3 3000
#define IT87_INIT_TEMP_HIGH_1 600
#define IT87_INIT_TEMP_LOW_1 200
#define IT87_INIT_TEMP_LOW_1 540
#define IT87_INIT_TEMP_HIGH_2 600
#define IT87_INIT_TEMP_LOW_2 200
#define IT87_INIT_TEMP_HIGH_3 600
#define IT87_INIT_TEMP_HIGH_3 600
#define IT87_INIT_TEMP_LOW_3 200
#define IT87_INIT_PWR_TL_OFF 160
#define IT87_INIT_PWR_TL_LOW 160
#define IT87_INIT_PWR_TL_MED 480
#define IT87_INIT_PWR_TL_HI 540
#define IT87_INIT_PWR_TL_OVR 580
#define IT87_INIT_PWR_LOW 3
#define IT87_INIT_PWR_MED 4
#define IT87_INIT_PWR_HI 9
/* For each registered IT87, we need to keep some data in memory. That
data is pointed to by it87_list[NR]->data. The structure itself is
dynamically allocated, at the same time when a new it87 client is
@@ -216,6 +263,10 @@ struct it87_data {
u8 fan_div[3]; /* Register encoding, shifted right */
u8 vid; /* Register encoding, combined */
u32 alarms; /* Register encoding, combined */
u8 pwm[3]; /* Register value */
u8 fan_ctl[2]; /* Register encoding */
u8 sg_tl[3][5]; /* Register value */
u8 sg_pwm[3][3]; /* Register value */
};
@@ -243,6 +294,14 @@ static void it87_alarms(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void it87_fan_div(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void it87_fan_ctl(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void it87_pwm(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void it87_sgpwm(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void it87_sgtl(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static struct i2c_driver it87_driver = {
.owner = THIS_MODULE,
@@ -277,6 +336,13 @@ static int it87_id = 0;
#define IT87_SYSCTL_FAN_DIV 2000 /* 1, 2, 4 or 8 */
#define IT87_SYSCTL_ALARMS 2004 /* bitvector */
#define IT87_SYSCTL_PWM1 1401
#define IT87_SYSCTL_PWM2 1402
#define IT87_SYSCTL_PWM3 1403
#define IT87_SYSCTL_FAN_CTL 1501
#define IT87_SYSCTL_FAN_ON_OFF 1502
#define IT87_ALARM_IN0 0x000100
#define IT87_ALARM_IN1 0x000200
#define IT87_ALARM_IN2 0x000400
@@ -336,6 +402,28 @@ static ctl_table it87_dir_table_template[] = {
&i2c_sysctl_real, NULL, &it87_fan_div},
{IT87_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &it87_alarms},
{IT87_SYSCTL_FAN_CTL, "fan_ctl", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &it87_fan_ctl},
{IT87_SYSCTL_FAN_ON_OFF, "fan_on_off", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &it87_fan_ctl},
{IT87_SYSCTL_PWM1, "pwm1", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &it87_pwm},
{IT87_SYSCTL_PWM2, "pwm2", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &it87_pwm},
{IT87_SYSCTL_PWM3, "pwm3", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &it87_pwm},
{IT87_SYSCTL_PWM1, "sg_pwm1", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &it87_sgpwm},
{IT87_SYSCTL_PWM2, "sg_pwm2", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &it87_sgpwm},
{IT87_SYSCTL_PWM3, "sg_pwm3", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &it87_sgpwm},
{IT87_SYSCTL_PWM1, "sg_tl1", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &it87_sgtl},
{IT87_SYSCTL_PWM2, "sg_tl2", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &it87_sgtl},
{IT87_SYSCTL_PWM3, "sg_tl3", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &it87_sgtl},
{0}
};
@@ -563,74 +651,81 @@ static int it87_write_value(struct i2c_client *client, u8 reg, u8 value)
/* Called when we have found a new IT87. It should set limits, etc. */
static void it87_init_client(struct i2c_client *client)
{
if( init )
{
/* Reset all except Watchdog values and last conversion values
This sets fan-divs to 2, among others */
it87_write_value(client, IT87_REG_CONFIG, 0x80);
it87_write_value(client, IT87_REG_VIN_MIN(0),
IN_TO_REG(IT87_INIT_IN_MIN_0));
it87_write_value(client, IT87_REG_VIN_MAX(0),
IN_TO_REG(IT87_INIT_IN_MAX_0));
it87_write_value(client, IT87_REG_VIN_MIN(1),
IN_TO_REG(IT87_INIT_IN_MIN_1));
it87_write_value(client, IT87_REG_VIN_MAX(1),
IN_TO_REG(IT87_INIT_IN_MAX_1));
it87_write_value(client, IT87_REG_VIN_MIN(2),
IN_TO_REG(IT87_INIT_IN_MIN_2));
it87_write_value(client, IT87_REG_VIN_MAX(2),
IN_TO_REG(IT87_INIT_IN_MAX_2));
it87_write_value(client, IT87_REG_VIN_MIN(3),
IN_TO_REG(IT87_INIT_IN_MIN_3));
it87_write_value(client, IT87_REG_VIN_MAX(3),
IN_TO_REG(IT87_INIT_IN_MAX_3));
it87_write_value(client, IT87_REG_VIN_MIN(4),
IN_TO_REG(IT87_INIT_IN_MIN_4));
it87_write_value(client, IT87_REG_VIN_MAX(4),
IN_TO_REG(IT87_INIT_IN_MAX_4));
it87_write_value(client, IT87_REG_VIN_MIN(5),
IN_TO_REG(IT87_INIT_IN_MIN_5));
it87_write_value(client, IT87_REG_VIN_MAX(5),
IN_TO_REG(IT87_INIT_IN_MAX_5));
it87_write_value(client, IT87_REG_VIN_MIN(6),
IN_TO_REG(IT87_INIT_IN_MIN_6));
it87_write_value(client, IT87_REG_VIN_MAX(6),
IN_TO_REG(IT87_INIT_IN_MAX_6));
it87_write_value(client, IT87_REG_VIN_MIN(7),
IN_TO_REG(IT87_INIT_IN_MIN_7));
it87_write_value(client, IT87_REG_VIN_MAX(7),
IN_TO_REG(IT87_INIT_IN_MAX_7));
/* Note: Battery voltage does not have limit registers */
it87_write_value(client, IT87_REG_FAN_MIN(1),
FAN_TO_REG(IT87_INIT_FAN_MIN_1, 2));
it87_write_value(client, IT87_REG_FAN_MIN(2),
FAN_TO_REG(IT87_INIT_FAN_MIN_2, 2));
it87_write_value(client, IT87_REG_FAN_MIN(3),
FAN_TO_REG(IT87_INIT_FAN_MIN_3, 2));
it87_write_value(client, IT87_REG_TEMP_HIGH(1),
TEMP_TO_REG(IT87_INIT_TEMP_HIGH_1));
it87_write_value(client, IT87_REG_TEMP_LOW(1),
TEMP_TO_REG(IT87_INIT_TEMP_LOW_1));
it87_write_value(client, IT87_REG_TEMP_HIGH(2),
TEMP_TO_REG(IT87_INIT_TEMP_HIGH_2));
it87_write_value(client, IT87_REG_TEMP_LOW(2),
TEMP_TO_REG(IT87_INIT_TEMP_LOW_2));
it87_write_value(client, IT87_REG_TEMP_HIGH(3),
TEMP_TO_REG(IT87_INIT_TEMP_HIGH_3));
it87_write_value(client, IT87_REG_TEMP_LOW(3),
TEMP_TO_REG(IT87_INIT_TEMP_LOW_3));
This sets fan-divs to 2, among others.
It will also reset the automatic temperature controlled fan
speed (noise) control the BIOS configured on POST and the
fan will be set to propably noisy full speed operation */
if( reset_it87 ) {
it87_write_value(client, IT87_REG_CONFIG, 0x80);
}
it87_write_value(client, IT87_REG_VIN_MIN(0),
IN_TO_REG(IT87_INIT_IN_MIN_0));
it87_write_value(client, IT87_REG_VIN_MAX(0),
IN_TO_REG(IT87_INIT_IN_MAX_0));
it87_write_value(client, IT87_REG_VIN_MIN(1),
IN_TO_REG(IT87_INIT_IN_MIN_1));
it87_write_value(client, IT87_REG_VIN_MAX(1),
IN_TO_REG(IT87_INIT_IN_MAX_1));
it87_write_value(client, IT87_REG_VIN_MIN(2),
IN_TO_REG(IT87_INIT_IN_MIN_2));
it87_write_value(client, IT87_REG_VIN_MAX(2),
IN_TO_REG(IT87_INIT_IN_MAX_2));
it87_write_value(client, IT87_REG_VIN_MIN(3),
IN_TO_REG(IT87_INIT_IN_MIN_3));
it87_write_value(client, IT87_REG_VIN_MAX(3),
IN_TO_REG(IT87_INIT_IN_MAX_3));
it87_write_value(client, IT87_REG_VIN_MIN(4),
IN_TO_REG(IT87_INIT_IN_MIN_4));
it87_write_value(client, IT87_REG_VIN_MAX(4),
IN_TO_REG(IT87_INIT_IN_MAX_4));
it87_write_value(client, IT87_REG_VIN_MIN(5),
IN_TO_REG(IT87_INIT_IN_MIN_5));
it87_write_value(client, IT87_REG_VIN_MAX(5),
IN_TO_REG(IT87_INIT_IN_MAX_5));
it87_write_value(client, IT87_REG_VIN_MIN(6),
IN_TO_REG(IT87_INIT_IN_MIN_6));
it87_write_value(client, IT87_REG_VIN_MAX(6),
IN_TO_REG(IT87_INIT_IN_MAX_6));
it87_write_value(client, IT87_REG_VIN_MIN(7),
IN_TO_REG(IT87_INIT_IN_MIN_7));
it87_write_value(client, IT87_REG_VIN_MAX(7),
IN_TO_REG(IT87_INIT_IN_MAX_7));
/* Note: Battery voltage does not have limit registers */
it87_write_value(client, IT87_REG_FAN_MIN(1),
FAN_TO_REG(IT87_INIT_FAN_MIN_1, 2));
it87_write_value(client, IT87_REG_FAN_MIN(2),
FAN_TO_REG(IT87_INIT_FAN_MIN_2, 2));
it87_write_value(client, IT87_REG_FAN_MIN(3),
FAN_TO_REG(IT87_INIT_FAN_MIN_3, 2));
it87_write_value(client, IT87_REG_TEMP_HIGH(1),
TEMP_TO_REG(IT87_INIT_TEMP_HIGH_1));
it87_write_value(client, IT87_REG_TEMP_LOW(1),
TEMP_TO_REG(IT87_INIT_TEMP_LOW_1));
it87_write_value(client, IT87_REG_TEMP_HIGH(2),
TEMP_TO_REG(IT87_INIT_TEMP_HIGH_2));
it87_write_value(client, IT87_REG_TEMP_LOW(2),
TEMP_TO_REG(IT87_INIT_TEMP_LOW_2));
it87_write_value(client, IT87_REG_TEMP_HIGH(3),
TEMP_TO_REG(IT87_INIT_TEMP_HIGH_3));
it87_write_value(client, IT87_REG_TEMP_LOW(3),
TEMP_TO_REG(IT87_INIT_TEMP_LOW_3));
/* Enable voltage monitors */
it87_write_value(client, IT87_REG_VIN_ENABLE, 0xff);
/* Enable voltage monitors */
it87_write_value(client, IT87_REG_VIN_ENABLE, 0xff);
/* Enable Temp1-Temp3 */
it87_write_value(client, IT87_REG_TEMP_ENABLE,
(it87_read_value(client, IT87_REG_TEMP_ENABLE) & 0xc0)
| (temp_type & 0x3f));
/* Enable fans */
it87_write_value(client, IT87_REG_FAN_CTRL,
(it87_read_value(client, IT87_REG_FAN_CTRL) & 0x8f)
| 0x70);
/* Enable Temp1-Temp3 */
it87_write_value(client, IT87_REG_TEMP_ENABLE,
(it87_read_value(client, IT87_REG_TEMP_ENABLE) & 0xc0)
| (temp_type & 0x3f));
/* Enable fans */
it87_write_value(client, IT87_REG_FAN_CTRL,
(it87_read_value(client, IT87_REG_FAN_CTRL) & 0x8f)
| 0x70);
}
/* Start monitoring */
it87_write_value(client, IT87_REG_CONFIG,
(it87_read_value(client, IT87_REG_CONFIG) & 0xb7)
@@ -648,8 +743,8 @@ static void it87_update_client(struct i2c_client *client)
(jiffies < data->last_updated) || !data->valid) {
if (update_vbat) {
/* Cleared after each update, so reenable. Value
returned by this read will be previous value */
/* Cleared after each update, so reenable. Value
returned by this read will be previous value */
it87_write_value(client, IT87_REG_CONFIG,
it87_read_value(client, IT87_REG_CONFIG) | 0x40);
}
@@ -663,7 +758,7 @@ static void it87_update_client(struct i2c_client *client)
}
data->in[8] =
it87_read_value(client, IT87_REG_VIN(8));
/* Temperature sensor doesn't have limit registers, set
/* VBAT sensor doesn't have limit registers, set
to min and max value */
data->in_min[8] = 0;
data->in_max[8] = 255;
@@ -695,13 +790,25 @@ static void it87_update_client(struct i2c_client *client)
i = it87_read_value(client, IT87_REG_FAN_DIV);
data->fan_div[0] = i & 0x07;
data->fan_div[1] = (i >> 3) & 0x07;
data->fan_div[2] = 1;
data->fan_div[2] = ( (i&0x40)==0x40 ? 3 : 1 );
for( i = 1; i <= 3; i++ ) {
data->pwm[i-1] = it87_read_value(client, IT87_REG_PWM(i));
data->sg_tl[i-1][0] = it87_read_value(client, IT87_REG_SG_TL_OFF(i));
data->sg_tl[i-1][1] = it87_read_value(client, IT87_REG_SG_TL_LOW(i));
data->sg_tl[i-1][2] = it87_read_value(client, IT87_REG_SG_TL_MED(i));
data->sg_tl[i-1][3] = it87_read_value(client, IT87_REG_SG_TL_HI(i));
data->sg_tl[i-1][4] = it87_read_value(client, IT87_REG_SG_TL_OVR(i));
data->sg_pwm[i-1][0] = it87_read_value(client, IT87_REG_SG_PWM_LOW(i));
data->sg_pwm[i-1][1] = it87_read_value(client, IT87_REG_SG_PWM_MED(i));
data->sg_pwm[i-1][2] = it87_read_value(client, IT87_REG_SG_PWM_HI(i));
}
data->alarms =
it87_read_value(client, IT87_REG_ALARM1) |
(it87_read_value(client, IT87_REG_ALARM2) << 8) |
(it87_read_value(client, IT87_REG_ALARM3) << 16);
data->fan_ctl[0] = it87_read_value(client, IT87_REG_FAN_CTRL);
data->fan_ctl[1] = it87_read_value(client, IT87_REG_FAN_ONOFF);
data->last_updated = jiffies;
data->valid = 1;
}
@@ -763,19 +870,14 @@ void it87_fan(struct i2c_client *client, int operation, int ctl_name,
else if (operation == SENSORS_PROC_REAL_READ) {
it87_update_client(client);
results[0] = FAN_FROM_REG(data->fan_min[nr - 1],
DIV_FROM_REG(data->
fan_div[nr - 1]));
results[1] =
FAN_FROM_REG(data->fan[nr - 1],
DIV_FROM_REG(data->fan_div[nr - 1]));
results[1] = FAN_FROM_REG(data->fan[nr - 1],
DIV_FROM_REG(data->fan_div[nr - 1]));
*nrels_mag = 2;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->fan_min[nr - 1] = FAN_TO_REG(results[0],
DIV_FROM_REG
(data->
fan_div[nr -
1]));
DIV_FROM_REG(data->fan_div[nr - 1]));
it87_write_value(client, IT87_REG_FAN_MIN(nr),
data->fan_min[nr - 1]);
}
@@ -810,6 +912,93 @@ void it87_temp(struct i2c_client *client, int operation, int ctl_name,
}
}
void it87_pwm(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct it87_data *data = client->data;
int nr = ctl_name - IT87_SYSCTL_PWM1 + 1;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
it87_update_client(client);
results[0] = data->pwm[nr - 1];
*nrels_mag = 1;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->pwm[nr - 1] = results[0];
it87_write_value(client, IT87_REG_PWM(nr), data->pwm[nr - 1]);
}
}
}
void it87_sgpwm(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct it87_data *data = client->data;
int nr = ctl_name - IT87_SYSCTL_PWM1 + 1;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
it87_update_client(client);
results[0] = data->sg_pwm[nr - 1][0];
results[1] = data->sg_pwm[nr - 1][1];
results[2] = data->sg_pwm[nr - 1][2];
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->sg_pwm[nr - 1][0] = results[0];
it87_write_value(client, IT87_REG_SG_PWM_LOW(nr), data->sg_pwm[nr - 1][0]);
}
if (*nrels_mag >= 2) {
data->sg_pwm[nr - 1][1] = results[1];
it87_write_value(client, IT87_REG_SG_PWM_MED(nr), data->sg_pwm[nr - 1][1]);
}
if (*nrels_mag >= 3) {
data->sg_pwm[nr - 1][2] = results[2];
it87_write_value(client, IT87_REG_SG_PWM_HI(nr), data->sg_pwm[nr - 1][2]);
}
}
}
void it87_sgtl(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct it87_data *data = client->data;
int nr = ctl_name - IT87_SYSCTL_PWM1 + 1;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 1;
else if (operation == SENSORS_PROC_REAL_READ) {
it87_update_client(client);
results[0] = TEMP_FROM_REG(data->sg_tl[nr - 1][0]);
results[1] = TEMP_FROM_REG(data->sg_tl[nr - 1][1]);
results[2] = TEMP_FROM_REG(data->sg_tl[nr - 1][2]);
results[3] = TEMP_FROM_REG(data->sg_tl[nr - 1][3]);
results[4] = TEMP_FROM_REG(data->sg_tl[nr - 1][4]);
*nrels_mag = 5;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->sg_tl[nr - 1][0] = TEMP_TO_REG(results[0]);
it87_write_value(client, IT87_REG_SG_TL_OFF(nr), data->sg_pwm[nr - 1][0]);
}
if (*nrels_mag >= 2) {
data->sg_tl[nr - 1][1] = TEMP_TO_REG(results[1]);
it87_write_value(client, IT87_REG_SG_TL_LOW(nr), data->sg_pwm[nr - 1][1]);
}
if (*nrels_mag >= 3) {
data->sg_tl[nr - 1][2] = TEMP_TO_REG(results[2]);
it87_write_value(client, IT87_REG_SG_TL_MED(nr), data->sg_pwm[nr - 1][2]);
}
if (*nrels_mag >= 4) {
data->sg_tl[nr - 1][3] = TEMP_TO_REG(results[3]);
it87_write_value(client, IT87_REG_SG_TL_HI(nr), data->sg_pwm[nr - 1][3]);
}
if (*nrels_mag >= 5) {
data->sg_tl[nr - 1][4] = TEMP_TO_REG(results[4]);
it87_write_value(client, IT87_REG_SG_TL_OVR(nr), data->sg_pwm[nr - 1][4]);
}
}
}
void it87_vid(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
@@ -848,10 +1037,19 @@ void it87_fan_div(struct i2c_client *client, int operation, int ctl_name,
it87_update_client(client);
results[0] = DIV_FROM_REG(data->fan_div[0]);
results[1] = DIV_FROM_REG(data->fan_div[1]);
results[2] = 2;
results[2] = DIV_FROM_REG(data->fan_div[2]);;
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
old = it87_read_value(client, IT87_REG_FAN_DIV);
if (*nrels_mag >= 3) {
data->fan_div[2] = DIV_TO_REG(results[2]);
if( data->fan[2]!=3 ) {
data->fan_div[2] = 1;
old = (old & 0xbf);
} else {
old = (old | 0x40);
}
}
if (*nrels_mag >= 2) {
data->fan_div[1] = DIV_TO_REG(results[1]);
old = (old & 0xc3) | (data->fan_div[1] << 3);
@@ -864,6 +1062,28 @@ void it87_fan_div(struct i2c_client *client, int operation, int ctl_name,
}
}
void it87_fan_ctl(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct it87_data *data = client->data;
int index = ctl_name - IT87_SYSCTL_FAN_CTL;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
it87_update_client(client);
results[0] = data->fan_ctl[index];
*nrels_mag = 1;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->fan_ctl[index] = results[0];
if( index == 0 )
it87_write_value(client, IT87_REG_FAN_CTRL, data->fan_ctl[index] );
else
it87_write_value(client, IT87_REG_FAN_ONOFF, data->fan_ctl[index] );
}
}
}
static int __init sm_it87_init(void)
{
printk("it87.o version %s (%s)\n", LM_VERSION, LM_DATE);
@@ -883,6 +1103,10 @@ MODULE_PARM(update_vbat, "i");
MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value");
MODULE_PARM(temp_type, "i");
MODULE_PARM_DESC(temp_type, "Temperature sensor type, normally leave unset");
MODULE_PARM(init, "i");
MODULE_PARM_DESC(init, "Initialize the chip's registers, default yes");
MODULE_PARM(reset_it87, "i");
MODULE_PARM_DESC(reset_it87, "Reset the chip's registers, default no");
module_init(sm_it87_init);
module_exit(sm_it87_exit);