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lm-sensors/kernel/chips/fscpos.c
T
Kyosti Malkki 1cfe63804a (Kyösti) Cleanups 
Copy sysctl enums to chip drivers from sensors.h for now,
   as seen in drivers included in 2.5 tree. File no longer included
   from kernel side.

   Apply i2c-proc change in CVS tagged -km2.

   Partial clean and sort of includes everywhere.

   Add i2c-dev.h, as a partial copy from i2c.
   Add to sensors.h from i2c-proc.h to compile things.
   Remove i2c-isa.h.

   Reflect header file changes to lib/ and prog/.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@1705 7894878c-1315-0410-8ee3-d5d059ff63e0
2003-01-21 20:01:27 +00:00

697 lines
23 KiB
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/*
fscpos.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring
Copyright (c) 2001 Hermann Jung <hej@odn.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.
*/
/*
fujitsu siemens poseidon chip,
module based on lm80.c
Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
and Philip Edelbrock <phil@netroedge.com>
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/proc_fs.h>
#include <linux/ioport.h>
#include <linux/sysctl.h>
#include <linux/types.h>
#include <linux/i2c.h>
#include <linux/i2c-proc.h>
#include <linux/init.h>
#include <asm/errno.h>
#include <asm/io.h>
#include "version.h"
/* Addresses to scan */
static unsigned short normal_i2c[] = { 0x73, 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_1(fscpos);
/* The FSCPOS registers */
/* chip identification */
#define FSCPOS_REG_IDENT_0 0x00
#define FSCPOS_REG_IDENT_1 0x01
#define FSCPOS_REG_IDENT_2 0x02
#define FSCPOS_REG_REVISION 0x03
/* global control and status */
#define FSCPOS_REG_EVENT_STATE 0x04
#define FSCPOS_REG_CONTROL 0x05
/* watchdog */
#define FSCPOS_REG_WDOG_PRESET 0x28
#define FSCPOS_REG_WDOG_STATE 0x23
#define FSCPOS_REG_WDOG_CONTROL 0x21
/* fan 0 */
#define FSCPOS_REG_FAN0_MIN 0x55
#define FSCPOS_REG_FAN0_ACT 0x0e
#define FSCPOS_REG_FAN0_STATE 0x0d
#define FSCPOS_REG_FAN0_RIPPLE 0x0f
/* fan 1 */
#define FSCPOS_REG_FAN1_MIN 0x65
#define FSCPOS_REG_FAN1_ACT 0x6b
#define FSCPOS_REG_FAN1_STATE 0x62
#define FSCPOS_REG_FAN1_RIPPLE 0x6f
/* fan 2 */
/* min speed fan2 not supported */
#define FSCPOS_REG_FAN2_ACT 0xab
#define FSCPOS_REG_FAN2_STATE 0xa2
#define FSCPOS_REG_FAN2_RIPPLE 0x0af
/* voltage supervision */
#define FSCPOS_REG_VOLT_12 0x45
#define FSCPOS_REG_VOLT_5 0x42
#define FSCPOS_REG_VOLT_BATT 0x48
/* temperatures */
/* sensor 0 */
#define FSCPOS_REG_TEMP0_ACT 0x64
#define FSCPOS_REG_TEMP0_STATE 0x71
/* sensor 1 */
#define FSCPOS_REG_TEMP1_ACT 0x32
#define FSCPOS_REG_TEMP1_STATE 0x81
/* sensor 2 */
#define FSCPOS_REG_TEMP2_ACT 0x35
#define FSCPOS_REG_TEMP2_STATE 0x91
/* 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.
Fixing this is just not worth it. */
#define IN_TO_REG(val,nr) (SENSORS_LIMIT((val),0,255))
#define IN_FROM_REG(val,nr) (val)
/* Initial limits */
/* For each registered FSCPOS, we need to keep some data in memory. That
data is pointed to by fscpos_list[NR]->data. The structure itself is
dynamically allocated, at the same time when a new fscpos client is
allocated. */
struct fscpos_data {
int sysctl_id;
struct semaphore update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
u8 revision; /* revision of chip */
u8 global_event; /* global event status */
u8 global_control; /* global control register */
u8 watchdog[3]; /* watchdog */
u8 volt[3]; /* 12, 5, battery current */
u8 temp_act[3]; /* temperature */
u8 temp_status[3]; /* status of sensor */
u8 fan_act[3]; /* fans revolutions per second */
u8 fan_status[3]; /* fan status */
u8 fan_min[3]; /* fan min value for rps */
u8 fan_ripple[3]; /* divider for rps */
};
static int fscpos_attach_adapter(struct i2c_adapter *adapter);
static int fscpos_detect(struct i2c_adapter *adapter, int address,
unsigned short flags, int kind);
static int fscpos_detach_client(struct i2c_client *client);
static int fscpos_read_value(struct i2c_client *client, u8 register);
static int fscpos_write_value(struct i2c_client *client, u8 register,
u8 value);
static void fscpos_update_client(struct i2c_client *client);
static void fscpos_init_client(struct i2c_client *client);
static void fscpos_in(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results);
static void fscpos_fan(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void fscpos_fan_internal(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results,
int nr, int reg_state, int reg_min, int res_ripple);
static void fscpos_temp(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void fscpos_volt(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void fscpos_wdog(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static int fscpos_id = 0;
static struct i2c_driver fscpos_driver = {
.owner = THIS_MODULE,
.name = "FSCPOS sensor driver",
.id = I2C_DRIVERID_FSCPOS,
.flags = I2C_DF_NOTIFY,
.attach_adapter = fscpos_attach_adapter,
.detach_client = fscpos_detach_client,
};
/* -- SENSORS SYSCTL START -- */
#define FSCPOS_SYSCTL_VOLT0 1000 /* 12 volt supply */
#define FSCPOS_SYSCTL_VOLT1 1001 /* 5 volt supply */
#define FSCPOS_SYSCTL_VOLT2 1002 /* batterie voltage*/
#define FSCPOS_SYSCTL_FAN0 1101 /* state, min, ripple, actual value fan 0 */
#define FSCPOS_SYSCTL_FAN1 1102 /* state, min, ripple, actual value fan 1 */
#define FSCPOS_SYSCTL_FAN2 1103 /* state, min, ripple, actual value fan 2 */
#define FSCPOS_SYSCTL_TEMP0 1201 /* state and value of sensor 0, cpu die */
#define FSCPOS_SYSCTL_TEMP1 1202 /* state and value of sensor 1, motherboard */
#define FSCPOS_SYSCTL_TEMP2 1203 /* state and value of sensor 2, chassis */
#define FSCPOS_SYSCTL_REV 2000 /* Revision */
#define FSCPOS_SYSCTL_EVENT 2001 /* global event status */
#define FSCPOS_SYSCTL_CONTROL 2002 /* global control byte */
#define FSCPOS_SYSCTL_WDOG 2003 /* state, min, ripple, actual value fan 2 */
/* -- SENSORS SYSCTL END -- */
/* These files are created for each detected FSCPOS. This is just a template;
though at first sight, you might think we could use a statically
allocated list, we need some way to get back to the parent - which
is done through one of the 'extra' fields which are initialized
when a new copy is allocated. */
static ctl_table fscpos_dir_table_template[] = {
{FSCPOS_SYSCTL_REV, "rev", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &fscpos_in},
{FSCPOS_SYSCTL_EVENT, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &fscpos_in},
{FSCPOS_SYSCTL_CONTROL, "control", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &fscpos_in},
{FSCPOS_SYSCTL_TEMP0, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &fscpos_temp},
{FSCPOS_SYSCTL_TEMP1, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &fscpos_temp},
{FSCPOS_SYSCTL_TEMP2, "temp3", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &fscpos_temp},
{FSCPOS_SYSCTL_VOLT0, "in0", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &fscpos_volt},
{FSCPOS_SYSCTL_VOLT1, "in1", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &fscpos_volt},
{FSCPOS_SYSCTL_VOLT2, "in2", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &fscpos_volt},
{FSCPOS_SYSCTL_FAN0, "fan1", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &fscpos_fan},
{FSCPOS_SYSCTL_FAN1, "fan2", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &fscpos_fan},
{FSCPOS_SYSCTL_FAN2, "fan3", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &fscpos_fan},
{FSCPOS_SYSCTL_WDOG, "wdog", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &fscpos_wdog},
{0}
};
static int fscpos_attach_adapter(struct i2c_adapter *adapter)
{
return i2c_detect(adapter, &addr_data, fscpos_detect);
}
int fscpos_detect(struct i2c_adapter *adapter, int address,
unsigned short flags, int kind)
{
int i;
struct i2c_client *new_client;
struct fscpos_data *data;
int err = 0;
const char *type_name, *client_name;
/* Make sure we aren't probing the ISA bus!! This is just a safety check
at this moment; i2c_detect really won't call us. */
#ifdef DEBUG
if (i2c_is_isa_adapter(adapter)) {
printk
("fscpos.o: fscpos_detect called for an ISA bus adapter?!?\n");
return 0;
}
#endif
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
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 fscpos_{read,write}_value. */
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct fscpos_data),
GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR0;
}
data = (struct fscpos_data *) (new_client + 1);
new_client->addr = address;
new_client->data = data;
new_client->adapter = adapter;
new_client->driver = &fscpos_driver;
new_client->flags = 0;
/* Do the remaining detection unless force or force_fscpos parameter */
if (kind < 0) {
if (fscpos_read_value(new_client, FSCPOS_REG_IDENT_0) != 0x50)
goto ERROR1;
if (fscpos_read_value(new_client, FSCPOS_REG_IDENT_1) != 0x45)
goto ERROR1;
if (fscpos_read_value(new_client, FSCPOS_REG_IDENT_2) != 0x47)
goto ERROR1;
}
kind = fscpos;
type_name = "fscpos";
client_name = "fsc poseidon chip";
/* Fill in the remaining client fields and put it into the global list */
strcpy(new_client->name, client_name);
new_client->id = fscpos_id++;
data->valid = 0;
init_MUTEX(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
goto ERROR3;
/* Register a new directory entry with module sensors */
if ((i = i2c_register_entry(new_client, type_name,
fscpos_dir_table_template)) < 0) {
err = i;
goto ERROR4;
}
data->sysctl_id = i;
fscpos_init_client(new_client);
return 0;
/* OK, this is not exactly good programming practice, usually. But it is
very code-efficient in this case. */
ERROR4:
i2c_detach_client(new_client);
ERROR3:
ERROR1:
kfree(new_client);
ERROR0:
return err;
}
static int fscpos_detach_client(struct i2c_client *client)
{
int err;
i2c_deregister_entry(((struct fscpos_data *) (client->data))->
sysctl_id);
if ((err = i2c_detach_client(client))) {
printk
("fscpos.o: Client deregistration failed, client not detached.\n");
return err;
}
kfree(client);
return 0;
}
static int fscpos_read_value(struct i2c_client *client, u8 reg)
{
#ifdef DEBUG
printk("fscpos: read reg 0x%02x\n",reg);
#endif
return i2c_smbus_read_byte_data(client, reg);
}
static int fscpos_write_value(struct i2c_client *client, u8 reg, u8 value)
{
#ifdef DEBUG
printk("fscpos: write reg 0x%02x, val 0x%02x\n",reg, value);
#endif
return i2c_smbus_write_byte_data(client, reg, value);
}
/* Called when we have found a new FSCPOS. It should set limits, etc. */
static void fscpos_init_client(struct i2c_client *client)
{
struct fscpos_data *data = client->data;
/* read revision from chip */
data->revision = fscpos_read_value(client,FSCPOS_REG_REVISION);
/* setup missing fan2_min value */
data->fan_min[2] = 0xff;
}
static void fscpos_update_client(struct i2c_client *client)
{
struct fscpos_data *data = client->data;
down(&data->update_lock);
if ((jiffies - data->last_updated > 2 * HZ) ||
(jiffies < data->last_updated) || !data->valid) {
#ifdef DEBUG
printk("Starting fscpos update\n");
#endif
data->temp_act[0] = fscpos_read_value(client, FSCPOS_REG_TEMP0_ACT);
data->temp_act[1] = fscpos_read_value(client, FSCPOS_REG_TEMP1_ACT);
data->temp_act[2] = fscpos_read_value(client, FSCPOS_REG_TEMP2_ACT);
data->temp_status[0] = fscpos_read_value(client, FSCPOS_REG_TEMP0_STATE);
data->temp_status[1] = fscpos_read_value(client, FSCPOS_REG_TEMP1_STATE);
data->temp_status[2] = fscpos_read_value(client, FSCPOS_REG_TEMP2_STATE);
data->volt[0] = fscpos_read_value(client, FSCPOS_REG_VOLT_12);
data->volt[1] = fscpos_read_value(client, FSCPOS_REG_VOLT_5);
data->volt[2] = fscpos_read_value(client, FSCPOS_REG_VOLT_BATT);
data->fan_act[0] = fscpos_read_value(client, FSCPOS_REG_FAN0_ACT);
data->fan_act[1] = fscpos_read_value(client, FSCPOS_REG_FAN1_ACT);
data->fan_act[2] = fscpos_read_value(client, FSCPOS_REG_FAN2_ACT);
data->fan_status[0] = fscpos_read_value(client, FSCPOS_REG_FAN0_STATE);
data->fan_status[1] = fscpos_read_value(client, FSCPOS_REG_FAN1_STATE);
data->fan_status[2] = fscpos_read_value(client, FSCPOS_REG_FAN2_STATE);
data->fan_min[0] = fscpos_read_value(client, FSCPOS_REG_FAN0_MIN);
data->fan_min[1] = fscpos_read_value(client, FSCPOS_REG_FAN1_MIN);
/* fan2_min is not supported */
data->fan_ripple[0] = fscpos_read_value(client, FSCPOS_REG_FAN0_RIPPLE);
data->fan_ripple[1] = fscpos_read_value(client, FSCPOS_REG_FAN1_RIPPLE);
data->fan_ripple[2] = fscpos_read_value(client, FSCPOS_REG_FAN2_RIPPLE);
data->watchdog[0] = fscpos_read_value(client, FSCPOS_REG_WDOG_PRESET);
data->watchdog[1] = fscpos_read_value(client, FSCPOS_REG_WDOG_STATE);
data->watchdog[2] = fscpos_read_value(client, FSCPOS_REG_WDOG_CONTROL);
data->global_event = fscpos_read_value(client, FSCPOS_REG_EVENT_STATE);
data->last_updated = jiffies;
data->valid = 1;
}
up(&data->update_lock);
}
/* The next few 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 date
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.
Note that on SENSORS_PROC_REAL_READ, I do not check whether results is
large enough (by checking the incoming value of *nrels). This is not very
good practice, but as long as you put less than about 5 values in results,
you can assume it is large enough. */
void fscpos_in(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct fscpos_data *data = client->data;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
fscpos_update_client(client);
switch(ctl_name) {
case FSCPOS_SYSCTL_REV:
results[0] = data->revision ;
break;
case FSCPOS_SYSCTL_EVENT:
results[0] = data->global_event & 0x1f;
break;
case FSCPOS_SYSCTL_CONTROL:
results[0] = data->global_control & 0x01;
break;
default:
printk("fscpos: ctl_name %d not supported\n",
ctl_name);
*nrels_mag = 0;
return;
}
*nrels_mag = 1;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if((ctl_name == FSCPOS_SYSCTL_CONTROL) && (*nrels_mag >= 1)) {
data->global_control = (results[0] & 0x01);
printk("fscpos: writing 0x%02x to global_control\n",
data->global_control);
fscpos_write_value(client,FSCPOS_REG_CONTROL,
data->global_control);
}
else
printk("fscpos: writing to chip not supported\n");
}
}
#define TEMP_FROM_REG(val) (val-128)
void fscpos_temp(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct fscpos_data *data = client->data;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
fscpos_update_client(client);
switch(ctl_name) {
case FSCPOS_SYSCTL_TEMP0:
results[0] = data->temp_status[0] & 0x03;
results[1] = TEMP_FROM_REG(data->temp_act[0]);
break;
case FSCPOS_SYSCTL_TEMP1:
results[0] = data->temp_status[1] & 0x03;
results[1] = TEMP_FROM_REG(data->temp_act[1]);
break;
case FSCPOS_SYSCTL_TEMP2:
results[0] = data->temp_status[2] & 0x03;
results[1] = TEMP_FROM_REG(data->temp_act[2]);
break;
default:
printk("fscpos: ctl_name %d not supported\n",
ctl_name);
*nrels_mag = 0;
return;
}
*nrels_mag = 2;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if(*nrels_mag >= 1) {
switch(ctl_name) {
case FSCPOS_SYSCTL_TEMP0:
data->temp_status[0] =
(data->temp_status[0] & ~0x02)
| (results[0] & 0x02);
printk("fscpos: writing value 0x%02x "
"to temp0_status\n",
data->temp_status[0]);
fscpos_write_value(client,
FSCPOS_REG_TEMP0_STATE,
data->temp_status[0] & 0x02);
break;
case FSCPOS_SYSCTL_TEMP1:
data->temp_status[1] = (data->temp_status[1] & ~0x02) | (results[0] & 0x02);
printk("fscpos: writing value 0x%02x to temp1_status\n", data->temp_status[1]);
fscpos_write_value(client,FSCPOS_REG_TEMP1_STATE,
data->temp_status[1] & 0x02);
break;
case FSCPOS_SYSCTL_TEMP2:
data->temp_status[2] = (data->temp_status[2] & ~0x02) | (results[0] & 0x02);
printk("fscpos: writing value 0x%02x to temp2_status\n", data->temp_status[2]);
fscpos_write_value(client,FSCPOS_REG_TEMP2_STATE,
data->temp_status[2] & 0x02);
break;
default:
printk("fscpos: ctl_name %d not supported\n",ctl_name);
}
}
else
printk("fscpos: writing to chip not supported\n");
}
}
#define VOLT_FROM_REG(val,mult) (val*mult/255)
void fscpos_volt(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct fscpos_data *data = client->data;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 2;
else if (operation == SENSORS_PROC_REAL_READ) {
fscpos_update_client(client);
switch(ctl_name) {
case FSCPOS_SYSCTL_VOLT0:
results[0] = VOLT_FROM_REG(data->volt[0],1420);
break;
case FSCPOS_SYSCTL_VOLT1:
results[0] = VOLT_FROM_REG(data->volt[1],660);
break;
case FSCPOS_SYSCTL_VOLT2:
results[0] = VOLT_FROM_REG(data->volt[2],330);
break;
default:
printk("fscpos: ctl_name %d not supported\n",
ctl_name);
*nrels_mag = 0;
return;
}
*nrels_mag = 1;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
printk("fscpos: writing to chip not supported\n");
}
}
void fscpos_fan(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
switch(ctl_name) {
case FSCPOS_SYSCTL_FAN0:
fscpos_fan_internal(client,operation,ctl_name,nrels_mag,results,
0,FSCPOS_REG_FAN0_STATE,FSCPOS_REG_FAN0_MIN,
FSCPOS_REG_FAN0_RIPPLE);
break;
case FSCPOS_SYSCTL_FAN1:
fscpos_fan_internal(client,operation,ctl_name,nrels_mag,results,
1,FSCPOS_REG_FAN1_STATE,FSCPOS_REG_FAN1_MIN,
FSCPOS_REG_FAN1_RIPPLE);
break;
case FSCPOS_SYSCTL_FAN2:
fscpos_fan_internal(client,operation,ctl_name,nrels_mag,results,
2,FSCPOS_REG_FAN2_STATE,0xff,
FSCPOS_REG_FAN2_RIPPLE);
break;
default:
printk("fscpos: illegal fan nr %d\n",ctl_name);
}
}
#define RPM_FROM_REG(val) (val*60)
void fscpos_fan_internal(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results, int nr,
int reg_state, int reg_min, int reg_ripple )
{
struct fscpos_data *data = client->data;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
fscpos_update_client(client);
results[0] = data->fan_status[nr] & 0x04;
results[1] = data->fan_min[nr];
results[2] = data->fan_ripple[nr] & 0x03;
results[3] = RPM_FROM_REG(data->fan_act[nr]);
*nrels_mag = 4;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if(*nrels_mag >= 1) {
data->fan_status[nr] = results[0] & 0x04;
printk("fscpos: writing value 0x%02x to fan%d_status\n",
data->fan_status[nr],nr);
fscpos_write_value(client,reg_state,
data->fan_status[nr]);
}
if((*nrels_mag >= 2) && (nr < 2)) {
/* minimal speed for fan2 not supported */
data->fan_min[nr] = results[1];
printk("fscpos: writing value 0x%02x to fan%d_min\n",
data->fan_min[nr],nr);
fscpos_write_value(client,reg_min,
data->fan_min[nr]);
}
if(*nrels_mag >= 3) {
if((results[2] & 0x03) == 0) {
printk("fscpos: fan%d ripple 0 not allowed\n",nr);
return;
}
data->fan_ripple[nr] = results[2] & 0x03;
printk("fscpos: writing value 0x%02x to fan%d_ripple\n",
data->fan_ripple[nr],nr);
fscpos_write_value(client,reg_ripple,
data->fan_ripple[nr]);
}
}
}
void fscpos_wdog(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct fscpos_data *data = client->data;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
fscpos_update_client(client);
results[0] = data->watchdog[0] ;
results[1] = data->watchdog[1] & 0x02;
results[2] = data->watchdog[2] & 0xb0;
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->watchdog[0] = results[0] & 0xff;
printk("fscpos: writing value 0x%02x to wdog_preset\n",
data->watchdog[0]);
fscpos_write_value(client,FSCPOS_REG_WDOG_PRESET,
data->watchdog[0]);
}
if (*nrels_mag >= 2) {
data->watchdog[1] = results[1] & 0x02;
printk("fscpos: writing value 0x%02x to wdog_state\n",
data->watchdog[1]);
fscpos_write_value(client,FSCPOS_REG_WDOG_STATE,
data->watchdog[1]);
}
if (*nrels_mag >= 3) {
data->watchdog[2] = results[2] & 0xb0;
printk("fscpos: writing value 0x%02x to wdog_control\n",
data->watchdog[2]);
fscpos_write_value(client,FSCPOS_REG_WDOG_CONTROL,
data->watchdog[2]);
}
}
}
static int __init sm_fscpos_init(void)
{
printk("fscpos.o version %s (%s)\n", LM_VERSION, LM_DATE);
return i2c_add_driver(&fscpos_driver);
}
static void __exit sm_fscpos_exit(void)
{
i2c_del_driver(&fscpos_driver);
}
MODULE_AUTHOR
("Hermann Jung <hej@odn.de> based on work from Frodo Looijaard <frodol@dds.nl> and Philip Edelbrock <phil@netroedge.com>");
MODULE_DESCRIPTION("fujitsu siemens poseidon chip driver");
MODULE_LICENSE("GPL");
module_init(sm_fscpos_init);
module_exit(sm_fscpos_exit);
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