wt/lm-sensors
1
0 Fork 0
mirror of https://github.com/lm-sensors/lm-sensors.git synced 2026-10-15 10:39:31 +00:00
Code Issues Packages Projects Releases Wiki Activity
Files
d4cf6b4a6fa75cb4e4b73c41ae583ff4bc044af2
lm-sensors/kernel/chips/sis5595.c
T
Mark D. Studebaker 7ccaa7f419 (mds) Check for uninitialized base addresses. Check for unenabled sensors. 
On sis5595, refuse to load if chip not found.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@943 7894878c-1315-0410-8ee3-d5d059ff63e0
2000-12-14 00:26:13 +00:00

790 lines
24 KiB
C
Raw Blame History

/*
sis5595.c - Part of lm_sensors, Linux kernel modules
for hardware monitoring
Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>,
Kyösti Mälkki <kmalkki@cc.hut.fi>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/version.h>
#include <linux/module.h>
#include <linux/malloc.h>
#include <linux/proc_fs.h>
#include <linux/ioport.h>
#include <linux/sysctl.h>
#include <linux/pci.h>
#include <asm/errno.h>
#include <asm/io.h>
#include <linux/types.h>
#include <linux/i2c.h>
#include "version.h"
#include "i2c-isa.h"
#include "sensors.h"
#include <linux/init.h>
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,2,18)) || \
(LINUX_VERSION_CODE == KERNEL_VERSION(2,3,0))
#define init_MUTEX(s) do { *(s) = MUTEX; } while(0)
#endif
#ifndef THIS_MODULE
#define THIS_MODULE NULL
#endif
/* Addresses to scan.
Note that we can't determine the ISA address until we have initialized
our module */
static unsigned short normal_i2c[] = { SENSORS_I2C_END };
static unsigned short normal_i2c_range[] = { SENSORS_I2C_END };
static unsigned int normal_isa[] = { 0x0000, SENSORS_ISA_END };
static unsigned int normal_isa_range[] = { SENSORS_ISA_END };
/* Insmod parameters */
SENSORS_INSMOD_1(sis5595);
/*
SiS southbridge has a LM78-like chip integrated on the same IC.
This driver is a customized copy of lm78.c
*/
/* Many SIS5595 constants specified below */
/* Length of ISA address segment */
#define SIS5595_EXTENT 8
#define SIS5595_BASE_REG 0x68
#define SIS5595_ENABLE_REG 0x7B
/* Where are the ISA address/data registers relative to the base address */
#define SIS5595_ADDR_REG_OFFSET 5
#define SIS5595_DATA_REG_OFFSET 6
/* The SIS5595 registers */
#define SIS5595_REG_IN_MAX(nr) (0x2b + (nr) * 2)
#define SIS5595_REG_IN_MIN(nr) (0x2c + (nr) * 2)
#define SIS5595_REG_IN(nr) (0x20 + (nr))
#define SIS5595_REG_FAN_MIN(nr) (0x3a + (nr))
#define SIS5595_REG_FAN(nr) (0x27 + (nr))
#define SIS5595_REG_TEMP 0x27
#define SIS5595_REG_TEMP_OVER 0x39
#define SIS5595_REG_TEMP_HYST 0x3a
#define SIS5595_REG_ALARM1 0x41
#define SIS5595_REG_FANDIV 0x47
#define SIS5595_REG_CONFIG 0x40
/* 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) (SENSORS_LIMIT((((val) * 10 + 8)/16),0,255))
#define IN_FROM_REG(val) (((val) * 16) / 10)
extern inline u8 FAN_TO_REG(long rpm, int div)
{
if (rpm == 0)
return 255;
rpm = SENSORS_LIMIT(rpm, 1, 1000000);
return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,
254);
}
#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-5)/10):\
((val)+5)/10),0,255))
#define TEMP_FROM_REG(val) (((val)>0x80?(val)-0x100:(val))*10)
#define ALARMS_FROM_REG(val) (val)
#define DIV_FROM_REG(val) (1 << (val))
#define DIV_TO_REG(val) ((val)==8?3:(val)==4?2:(val)==1?0:1)
/* Initial limits. To keep them sane, we use the 'standard' translation as
specified in the SIS5595 sheet. Use the config file to set better limits. */
#define SIS5595_INIT_IN_0 (((1200) * 10)/38)
#define SIS5595_INIT_IN_1 (((500) * 100)/168)
#define SIS5595_INIT_IN_2 330
#define SIS5595_INIT_IN_3 250
#define SIS5595_INIT_IN_PERCENTAGE 10
#define SIS5595_INIT_IN_MIN_0 \
(SIS5595_INIT_IN_0 - SIS5595_INIT_IN_0 * SIS5595_INIT_IN_PERCENTAGE / 100)
#define SIS5595_INIT_IN_MAX_0 \
(SIS5595_INIT_IN_0 + SIS5595_INIT_IN_0 * SIS5595_INIT_IN_PERCENTAGE / 100)
#define SIS5595_INIT_IN_MIN_1 \
(SIS5595_INIT_IN_1 - SIS5595_INIT_IN_1 * SIS5595_INIT_IN_PERCENTAGE / 100)
#define SIS5595_INIT_IN_MAX_1 \
(SIS5595_INIT_IN_1 + SIS5595_INIT_IN_1 * SIS5595_INIT_IN_PERCENTAGE / 100)
#define SIS5595_INIT_IN_MIN_2 \
(SIS5595_INIT_IN_2 - SIS5595_INIT_IN_2 * SIS5595_INIT_IN_PERCENTAGE / 100)
#define SIS5595_INIT_IN_MAX_2 \
(SIS5595_INIT_IN_2 + SIS5595_INIT_IN_2 * SIS5595_INIT_IN_PERCENTAGE / 100)
#define SIS5595_INIT_IN_MIN_3 \
(SIS5595_INIT_IN_3 - SIS5595_INIT_IN_3 * SIS5595_INIT_IN_PERCENTAGE / 100)
#define SIS5595_INIT_IN_MAX_3 \
(SIS5595_INIT_IN_3 + SIS5595_INIT_IN_3 * SIS5595_INIT_IN_PERCENTAGE / 100)
#define SIS5595_INIT_FAN_MIN_1 3000
#define SIS5595_INIT_FAN_MIN_2 3000
#define SIS5595_INIT_TEMP_OVER 600
#define SIS5595_INIT_TEMP_HYST 500
#ifdef MODULE
extern int init_module(void);
extern int cleanup_module(void);
#endif /* MODULE */
/* This module may seem overly long and complicated. In fact, it is not so
bad. Quite a lot of bookkeeping is done. A real driver can often cut
some corners. */
/* For each registered SIS5595, we need to keep some data in memory. That
data is pointed to by sis5595_list[NR]->data. The structure itself is
dynamically allocated, at the same time when a new sis5595 client is
allocated. */
struct sis5595_data {
struct semaphore lock;
int sysctl_id;
struct semaphore update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
u8 in[4]; /* Register value */
u8 in_max[4]; /* Register value */
u8 in_min[4]; /* Register value */
u8 fan[2]; /* Register value */
u8 fan_min[2]; /* Register value */
u8 temp; /* Register value */
u8 temp_over; /* Register value */
u8 temp_hyst; /* Register value */
u8 fan_div[2]; /* Register encoding, shifted right */
u8 alarms; /* Register encoding, combined */
};
#ifdef MODULE
static
#else
extern
#endif
int __init sensors_sis5595_init(void);
static int __init sis5595_cleanup(void);
static int sis5595_attach_adapter(struct i2c_adapter *adapter);
static int sis5595_detect(struct i2c_adapter *adapter, int address,
unsigned short flags, int kind);
static int sis5595_detach_client(struct i2c_client *client);
static int sis5595_command(struct i2c_client *client, unsigned int cmd,
void *arg);
static void sis5595_inc_use(struct i2c_client *client);
static void sis5595_dec_use(struct i2c_client *client);
static int sis5595_read_value(struct i2c_client *client, u8 register);
static int sis5595_write_value(struct i2c_client *client, u8 register,
u8 value);
static void sis5595_update_client(struct i2c_client *client);
static void sis5595_init_client(struct i2c_client *client);
static int sis5595_find_sis(int *address);
static void sis5595_in(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void sis5595_fan(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void sis5595_temp(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void sis5595_alarms(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void sis5595_fan_div(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static int sis5595_id = 0;
/* The driver. I choose to use type i2c_driver, as at is identical to both
smbus_driver and isa_driver, and clients could be of either kind */
static struct i2c_driver sis5595_driver = {
/* name */ "SiS 5595",
/* id */ I2C_DRIVERID_SIS5595,
/* flags */ I2C_DF_NOTIFY,
/* attach_adapter */ &sis5595_attach_adapter,
/* detach_client */ &sis5595_detach_client,
/* command */ &sis5595_command,
/* inc_use */ &sis5595_inc_use,
/* dec_use */ &sis5595_dec_use
};
/* Used by sis5595_init/cleanup */
static int __initdata sis5595_initialized = 0;
/* The /proc/sys entries */
/* These files are created for each detected SIS5595. 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 sis5595_dir_table_template[] = {
{SIS5595_SYSCTL_IN0, "in0", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &sis5595_in},
{SIS5595_SYSCTL_IN1, "in1", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &sis5595_in},
{SIS5595_SYSCTL_IN2, "in2", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &sis5595_in},
{SIS5595_SYSCTL_IN3, "in3", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &sis5595_in},
{SIS5595_SYSCTL_FAN1, "fan1", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &sis5595_fan},
{SIS5595_SYSCTL_FAN2, "fan2", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &sis5595_fan},
{SIS5595_SYSCTL_TEMP, "temp", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &sis5595_temp},
{SIS5595_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &sis5595_fan_div},
{SIS5595_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &sis5595_alarms},
{0}
};
/* This is called when the module is loaded */
int sis5595_attach_adapter(struct i2c_adapter *adapter)
{
return sensors_detect(adapter, &addr_data, sis5595_detect);
}
/* Locate SiS bridge and correct base address for SIS5595 */
int sis5595_find_sis(int *address)
{
struct pci_dev *s_bridge;
u16 val;
char c;
if (!pci_present())
return -ENODEV;
if (!(s_bridge =
pci_find_device(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503,
NULL)))
return -ENODEV;
if (PCIBIOS_SUCCESSFUL !=
pci_read_config_word(s_bridge, SIS5595_BASE_REG, &val))
return -ENODEV;
*address = (val & 0xfff8);
if(*address == 0) {
printk("sis5595.o: Sensor base address uninitialized - upgrade BIOS?\n");
return -ENODEV;
}
if (PCIBIOS_SUCCESSFUL !=
pci_read_config_byte(s_bridge, SIS5595_ENABLE_REG, &c))
return -ENODEV;
if((c & 0x80) == 0) {
printk("sis5595.o: Sensors not enabled - upgrade BIOS?\n");
return -ENODEV;
}
return 0;
}
int sis5595_detect(struct i2c_adapter *adapter, int address,
unsigned short flags, int kind)
{
int i;
struct i2c_client *new_client;
struct sis5595_data *data;
int err = 0;
const char *type_name = "";
const char *client_name = "";
/* Make sure we are probing the ISA bus!! */
if (!i2c_is_isa_adapter(adapter)) {
printk
("sis5595.o: sis5595_detect called for an I2C bus adapter?!?\n");
return 0;
}
if (check_region(address, SIS5595_EXTENT))
goto ERROR0;
/* If this is the address as indicated by the SIS5595 chipset, we don't
do any futher probing */
if ((kind < 0) && (address == normal_isa[0]))
kind = 0;
/* Probe whether there is anything available on this address. */
if (kind < 0) {
#define REALLY_SLOW_IO
/* We need the timeouts for at least some LM78-like chips. But only
if we read 'undefined' registers. */
i = inb_p(address + 1);
if (inb_p(address + 2) != i)
goto ERROR0;
if (inb_p(address + 3) != i)
goto ERROR0;
if (inb_p(address + 7) != i)
goto ERROR0;
#undef REALLY_SLOW_IO
/* Let's just hope nothing breaks here */
i = inb_p(address + 5) & 0x7f;
outb_p(~i & 0x7f, address + 5);
if ((inb_p(address + 5) & 0x7f) != (~i & 0x7f)) {
outb_p(i, address + 5);
return 0;
}
}
/* 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 sis5595_{read,write}_value. */
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct sis5595_data),
GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR0;
}
data = (struct sis5595_data *) (new_client + 1);
new_client->addr = address;
init_MUTEX(&data->lock);
new_client->data = data;
new_client->adapter = adapter;
new_client->driver = &sis5595_driver;
new_client->flags = 0;
/* Now, we do the remaining detection. */
if (kind < 0) {
if (sis5595_read_value(new_client, SIS5595_REG_CONFIG) &
0x80) goto ERROR1;
}
/* Determine the chip type. */
if (kind <= 0)
kind = sis5595;
if (kind == sis5595) {
type_name = "sis5595";
client_name = "SIS5595 chip";
} else {
#ifdef DEBUG
printk("sis5595.o: Internal error: unknown kind (%d)?!?",
kind);
#endif
goto ERROR1;
}
/* Reserve the ISA region */
request_region(address, SIS5595_EXTENT, type_name);
/* Fill in the remaining client fields and put it into the global list */
strcpy(new_client->name, client_name);
new_client->id = sis5595_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 = sensors_register_entry((struct i2c_client *) new_client,
type_name,
sis5595_dir_table_template,
THIS_MODULE)) < 0) {
err = i;
goto ERROR4;
}
data->sysctl_id = i;
/* Initialize the SIS5595 chip */
sis5595_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:
release_region(address, SIS5595_EXTENT);
ERROR1:
kfree(new_client);
ERROR0:
return err;
}
int sis5595_detach_client(struct i2c_client *client)
{
int err;
sensors_deregister_entry(((struct sis5595_data *) (client->data))->
sysctl_id);
if ((err = i2c_detach_client(client))) {
printk
("sis5595.o: Client deregistration failed, client not detached.\n");
return err;
}
release_region(client->addr, SIS5595_EXTENT);
kfree(client);
return 0;
}
/* No commands defined yet */
int sis5595_command(struct i2c_client *client, unsigned int cmd, void *arg)
{
return 0;
}
/* Nothing here yet */
void sis5595_inc_use(struct i2c_client *client)
{
#ifdef MODULE
MOD_INC_USE_COUNT;
#endif
}
/* Nothing here yet */
void sis5595_dec_use(struct i2c_client *client)
{
#ifdef MODULE
MOD_DEC_USE_COUNT;
#endif
}
/* The SMBus locks itself, but ISA access must be locked explicitly!
There are some ugly typecasts here, but the good news is - they should
nowhere else be necessary! */
int sis5595_read_value(struct i2c_client *client, u8 reg)
{
int res;
down(&(((struct sis5595_data *) (client->data))->lock));
outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET);
res = inb_p(client->addr + SIS5595_DATA_REG_OFFSET);
up(&(((struct sis5595_data *) (client->data))->lock));
return res;
}
int sis5595_write_value(struct i2c_client *client, u8 reg, u8 value)
{
down(&(((struct sis5595_data *) (client->data))->lock));
outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET);
outb_p(value, client->addr + SIS5595_DATA_REG_OFFSET);
up(&(((struct sis5595_data *) (client->data))->lock));
return 0;
}
/* Called when we have found a new SIS5595. It should set limits, etc. */
void sis5595_init_client(struct i2c_client *client)
{
/* Reset all except Watchdog values and last conversion values
This sets fan-divs to 2, among others */
sis5595_write_value(client, SIS5595_REG_CONFIG, 0x80);
sis5595_write_value(client, SIS5595_REG_IN_MIN(0),
IN_TO_REG(SIS5595_INIT_IN_MIN_0));
sis5595_write_value(client, SIS5595_REG_IN_MAX(0),
IN_TO_REG(SIS5595_INIT_IN_MAX_0));
sis5595_write_value(client, SIS5595_REG_IN_MIN(1),
IN_TO_REG(SIS5595_INIT_IN_MIN_1));
sis5595_write_value(client, SIS5595_REG_IN_MAX(1),
IN_TO_REG(SIS5595_INIT_IN_MAX_1));
sis5595_write_value(client, SIS5595_REG_IN_MIN(2),
IN_TO_REG(SIS5595_INIT_IN_MIN_2));
sis5595_write_value(client, SIS5595_REG_IN_MAX(2),
IN_TO_REG(SIS5595_INIT_IN_MAX_2));
sis5595_write_value(client, SIS5595_REG_IN_MIN(3),
IN_TO_REG(SIS5595_INIT_IN_MIN_3));
sis5595_write_value(client, SIS5595_REG_IN_MAX(3),
IN_TO_REG(SIS5595_INIT_IN_MAX_3));
sis5595_write_value(client, SIS5595_REG_FAN_MIN(1),
FAN_TO_REG(SIS5595_INIT_FAN_MIN_1, 2));
sis5595_write_value(client, SIS5595_REG_FAN_MIN(2),
FAN_TO_REG(SIS5595_INIT_FAN_MIN_2, 2));
sis5595_write_value(client, SIS5595_REG_TEMP_OVER,
TEMP_TO_REG(SIS5595_INIT_TEMP_OVER));
sis5595_write_value(client, SIS5595_REG_TEMP_HYST,
TEMP_TO_REG(SIS5595_INIT_TEMP_HYST));
/* Start monitoring */
sis5595_write_value(client, SIS5595_REG_CONFIG,
(sis5595_read_value(client, SIS5595_REG_CONFIG)
& 0xf7) | 0x01);
}
void sis5595_update_client(struct i2c_client *client)
{
struct sis5595_data *data = client->data;
int i;
down(&data->update_lock);
if ((jiffies - data->last_updated > HZ + HZ / 2) ||
(jiffies < data->last_updated) || !data->valid) {
#ifdef DEBUG
printk("Starting sis5595 update\n");
#endif
for (i = 0; i <= 3; i++) {
data->in[i] =
sis5595_read_value(client, SIS5595_REG_IN(i));
data->in_min[i] =
sis5595_read_value(client,
SIS5595_REG_IN_MIN(i));
data->in_max[i] =
sis5595_read_value(client,
SIS5595_REG_IN_MAX(i));
}
for (i = 1; i <= 2; i++) {
data->fan[i - 1] =
sis5595_read_value(client, SIS5595_REG_FAN(i));
data->fan_min[i - 1] =
sis5595_read_value(client,
SIS5595_REG_FAN_MIN(i));
}
data->temp = sis5595_read_value(client, SIS5595_REG_TEMP);
data->temp_over =
sis5595_read_value(client, SIS5595_REG_TEMP_OVER);
data->temp_hyst =
sis5595_read_value(client, SIS5595_REG_TEMP_HYST);
i = sis5595_read_value(client, SIS5595_REG_FANDIV);
data->fan_div[0] = (i >> 4) & 0x03;
data->fan_div[1] = i >> 6;
data->alarms =
sis5595_read_value(client, SIS5595_REG_ALARM1);
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 sis5595_in(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct sis5595_data *data = client->data;
int nr = ctl_name - SIS5595_SYSCTL_IN0;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 2;
else if (operation == SENSORS_PROC_REAL_READ) {
sis5595_update_client(client);
results[0] = IN_FROM_REG(data->in_min[nr]);
results[1] = IN_FROM_REG(data->in_max[nr]);
results[2] = IN_FROM_REG(data->in[nr]);
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->in_min[nr] = IN_TO_REG(results[0]);
sis5595_write_value(client, SIS5595_REG_IN_MIN(nr),
data->in_min[nr]);
}
if (*nrels_mag >= 2) {
data->in_max[nr] = IN_TO_REG(results[1]);
sis5595_write_value(client, SIS5595_REG_IN_MAX(nr),
data->in_max[nr]);
}
}
}
void sis5595_fan(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct sis5595_data *data = client->data;
int nr = ctl_name - SIS5595_SYSCTL_FAN1 + 1;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
sis5595_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]));
*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]));
sis5595_write_value(client,
SIS5595_REG_FAN_MIN(nr),
data->fan_min[nr - 1]);
}
}
}
void sis5595_temp(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct sis5595_data *data = client->data;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 1;
else if (operation == SENSORS_PROC_REAL_READ) {
sis5595_update_client(client);
results[0] = TEMP_FROM_REG(data->temp_over);
results[1] = TEMP_FROM_REG(data->temp_hyst);
results[2] = TEMP_FROM_REG(data->temp);
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->temp_over = TEMP_TO_REG(results[0]);
sis5595_write_value(client, SIS5595_REG_TEMP_OVER,
data->temp_over);
}
if (*nrels_mag >= 2) {
data->temp_hyst = TEMP_TO_REG(results[1]);
sis5595_write_value(client, SIS5595_REG_TEMP_HYST,
data->temp_hyst);
}
}
}
void sis5595_alarms(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct sis5595_data *data = client->data;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
sis5595_update_client(client);
results[0] = ALARMS_FROM_REG(data->alarms);
*nrels_mag = 1;
}
}
void sis5595_fan_div(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results)
{
struct sis5595_data *data = client->data;
int old;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
sis5595_update_client(client);
results[0] = DIV_FROM_REG(data->fan_div[0]);
results[1] = DIV_FROM_REG(data->fan_div[1]);
*nrels_mag = 2;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
old = sis5595_read_value(client, SIS5595_REG_FANDIV);
if (*nrels_mag >= 2) {
data->fan_div[1] = DIV_TO_REG(results[1]);
old = (old & 0x3f) | (data->fan_div[1] << 6);
}
if (*nrels_mag >= 1) {
data->fan_div[0] = DIV_TO_REG(results[0]);
old = (old & 0xcf) | (data->fan_div[0] << 4);
sis5595_write_value(client, SIS5595_REG_FANDIV,
old);
}
}
}
int __init sensors_sis5595_init(void)
{
int res, addr;
printk("sis5595.o version %s (%s)\n", LM_VERSION, LM_DATE);
sis5595_initialized = 0;
if (sis5595_find_sis(&addr)) {
printk("sis5595.o: SIS5595 not detected, module not inserted.\n");
return -ENODEV;
}
normal_isa[0] = addr;
if ((res = i2c_add_driver(&sis5595_driver))) {
printk
("sis5595.o: Driver registration failed, module not inserted.\n");
sis5595_cleanup();
return res;
}
sis5595_initialized++;
return 0;
}
int __init sis5595_cleanup(void)
{
int res;
if (sis5595_initialized >= 1) {
if ((res = i2c_del_driver(&sis5595_driver))) {
printk
("sis5595.o: Driver deregistration failed, module not removed.\n");
return res;
}
sis5595_initialized--;
}
return 0;
}
EXPORT_NO_SYMBOLS;
#ifdef MODULE
MODULE_AUTHOR("Kyösti Mälkki <kmalkki@cc.hut.fi>");
MODULE_DESCRIPTION("SiS 5595 Sensor device");
int init_module(void)
{
return sensors_sis5595_init();
}
int cleanup_module(void)
{
return sis5595_cleanup();
}
#endif /* MODULE */
Reference in new issue View Git Blame Copy Permalink