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lm-sensors/kernel/chips/gl520sm.c
T
Frodo Looijaard 68a31e3480 Some code cleanups 
* Removed several superfluous (struct i2c_client *) casts (they were left
  from the time we had separate structs for smbus and isa)
* Removed the internal lists of registered clients
  They have not been used for quite some time now, took memory space,
  and limited the maximum number of clients that could be registered.

Also removed two small Makefile errors - I am happy I caught them before
the next release!


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@582 7894878c-1315-0410-8ee3-d5d059ff63e0
1999-09-27 13:20:45 +00:00

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/*
gl520sm.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/module.h>
#include <linux/malloc.h>
#include <linux/i2c.h>
#include "sensors.h"
#include "i2c-isa.h"
#include "version.h"
#include "compat.h"
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,53)
#include <linux/init.h>
#else
#define __init
#define __initdata
#endif
/* Addresses to scan */
static unsigned short normal_i2c[] = {0x2c,0x2d,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(gl520sm);
/* Many GL520 constants specified below
One of the inputs can be configured as either temp or voltage.
That's why _TEMP2 and _VIN4 access the same register
*/
/* The GL520 registers */
#define GL520_REG_CHIP_ID 0x00
#define GL520_REG_REVISION 0x01
#define GL520_REG_VID 0x02
#define GL520_REG_CONF 0x03
#define GL520_REG_TEMP1 0x04
#define GL520_REG_TEMP1_OVER 0x05
#define GL520_REG_TEMP1_HYST 0x06
#define GL520_REG_FAN_COUNT 0x07
#define GL520_REG_FAN_LIMIT 0x08
#define GL520_REG_VIN1_LIMIT 0x09
#define GL520_REG_VIN2_LIMIT 0x0a
#define GL520_REG_VIN3_LIMIT 0x0b
#define GL520_REG_VDD_LIMIT 0x0c
#define GL520_REG_VIN3 0x0d
#define GL520_REG_VIN4 0x0e
#define GL520_REG_TEMP2 0x0e
#define GL520_REG_MISC 0x0f
#define GL520_REG_ALARM 0x10
#define GL520_REG_MASK 0x11
#define GL520_REG_INT 0x12
#define GL520_REG_VIN2 0x13
#define GL520_REG_VIN1 0x14
#define GL520_REG_VDD 0x15
#define GL520_REG_TEMP2_OVER 0x17
#define GL520_REG_VIN4_MAX 0x17
#define GL520_REG_TEMP2_HYST 0x18
#define GL520_REG_VIN4_MIN 0x18
/* 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 TEMP_TO_REG(val) (SENSORS_LIMIT(((((val)<0?(val)-5:(val)+5) / 10)+130),\
0,255))
#define TEMP_FROM_REG(val) (((val) - 130) * 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((960000 + rpm*div/2) / (rpm*div),1,254);
}
#define FAN_FROM_REG(val,div) \
( (val)==0 ? 0 : (val)==255 ? 0 : (960000/((val)*(div))) )
#define IN_TO_REG(val) (SENSORS_LIMIT((((val)*10+8)/19),0,255))
#define IN_FROM_REG(val) (((val)*19)/10)
#define VDD_TO_REG(val) (SENSORS_LIMIT((((val)*10+11)/23),0,255))
#define VDD_FROM_REG(val) (((val)*23)/10)
#define DIV_TO_REG(val) ((val)==8?3:(val)==4?2:(val)==1?0:1)
#define DIV_FROM_REG(val) (1 << (val))
#define ALARMS_FROM_REG(val) val
#define BEEP_ENABLE_TO_REG(val) ((val)?0:1)
#define BEEP_ENABLE_FROM_REG(val) ((val)?0:1)
#define BEEPS_TO_REG(val) (val)
#define BEEPS_FROM_REG(val) (val)
#define VID_FROM_REG(val) ((val)==0x1f?0:(val)>=0x10?510-(val)*10:\
(val)>=0x06?0:205-(val)*5)
/* Initial values */
#define GL520_INIT_TEMP_OVER 600
#define GL520_INIT_TEMP_HYST 500
#define GL520_INIT_FAN_MIN_1 3000
#define GL520_INIT_FAN_MIN_2 3000
/* These are somewhat sane */
#define GL520_INIT_VIN_1 330 /* 3.3 V */
#define GL520_INIT_VIN_2 286 /* 12 V */
#define GL520_INIT_VIN_3 260 /* Vcore */
#define GL520_INIT_VIN_4 160 /* -12 V */
#define GL520_INIT_VDD 500 /* 5 V */
#define GL520_INIT_PERCENTAGE 10
#define GL520_INIT_VIN_MIN_1 \
(GL520_INIT_VIN_1 - GL520_INIT_VIN_1 * GL520_INIT_PERCENTAGE / 100)
#define GL520_INIT_VIN_MAX_1 \
(GL520_INIT_VIN_1 + GL520_INIT_VIN_1 * GL520_INIT_PERCENTAGE / 100)
#define GL520_INIT_VIN_MIN_2 \
(GL520_INIT_VIN_2 - GL520_INIT_VIN_2 * GL520_INIT_PERCENTAGE / 100)
#define GL520_INIT_VIN_MAX_2 \
(GL520_INIT_VIN_2 + GL520_INIT_VIN_2 * GL520_INIT_PERCENTAGE / 100)
#define GL520_INIT_VIN_MIN_3 \
(GL520_INIT_VIN_3 - GL520_INIT_VIN_3 * GL520_INIT_PERCENTAGE / 100)
#define GL520_INIT_VIN_MAX_3 \
(GL520_INIT_VIN_3 + GL520_INIT_VIN_3 * GL520_INIT_PERCENTAGE / 100)
#define GL520_INIT_VDD_MIN \
(GL520_INIT_VDD - GL520_INIT_VDD * GL520_INIT_PERCENTAGE / 100)
#define GL520_INIT_VDD_MAX \
(GL520_INIT_VDD + GL520_INIT_VDD * GL520_INIT_PERCENTAGE / 100)
/* Each client has this additional data */
struct gl520_data {
int sysctl_id;
enum chips type;
struct semaphore update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
unsigned long last_updated_v00;
/* In jiffies (used only by rev00 chips) */
u8 voltage[5]; /* Register values; [0] = VDD */
u8 voltage_min[5]; /* Register values; [0] = VDD */
u8 voltage_max[5]; /* Register values; [0] = VDD */
u8 fan[2];
u8 fan_min[2];
u8 temp[2]; /* Register values */
u8 temp_over[2]; /* Register values */
u8 temp_hyst[2]; /* Register values */
u8 alarms,beeps,vid; /* Register value */
u8 alarm_mask; /* Register value */
u8 fan_div[2]; /* Register encoding, shifted right */
u8 beep_enable; /* Boolean */
u8 two_temps; /* Boolean */
};
#ifdef MODULE
extern int init_module(void);
extern int cleanup_module(void);
#endif /* MODULE */
#ifdef MODULE
static
#else
extern
#endif
int __init sensors_gl520_init(void);
static int __init gl520_cleanup(void);
static int gl520_attach_adapter(struct i2c_adapter *adapter);
static int gl520_detect(struct i2c_adapter *adapter, int address, int kind);
static void gl520_init_client(struct i2c_client *client);
static int gl520_detach_client(struct i2c_client *client);
static int gl520_command(struct i2c_client *client, unsigned int cmd,
void *arg);
static void gl520_inc_use (struct i2c_client *client);
static void gl520_dec_use (struct i2c_client *client);
static u16 swap_bytes(u16 val);
static int gl520_read_value(struct i2c_client *client, u8 reg);
static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value);
static void gl520_update_client(struct i2c_client *client);
static void gl520_vin(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void gl520_vid(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void gl520_fan(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void gl520_temp(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void gl520_fan_div(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void gl520_alarms(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void gl520_beep(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results);
static void gl520_fan1off(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void gl520_config(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
/* This is the driver that will be inserted */
static struct i2c_driver gl520_driver = {
/* name */ "GL520SM sensor chip driver",
/* id */ I2C_DRIVERID_GL520,
/* flags */ I2C_DF_NOTIFY,
/* attach_adapter */ &gl520_attach_adapter,
/* detach_client */ &gl520_detach_client,
/* command */ &gl520_command,
/* inc_use */ &gl520_inc_use,
/* dec_use */ &gl520_dec_use
};
/* These files are created for each detected GL520. 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 gl520_dir_table_template[] = {
{ GL520_SYSCTL_VIN1, "vin1", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_vin },
{ GL520_SYSCTL_VIN2, "vin2", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_vin },
{ GL520_SYSCTL_VIN3, "vin3", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_vin },
{ GL520_SYSCTL_VIN4, "vin4", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_vin },
{ GL520_SYSCTL_VDD, "vdd", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_vin },
{ GL520_SYSCTL_VID, "vid", NULL, 0, 0444, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_vid },
{ GL520_SYSCTL_FAN1, "fan1", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_fan },
{ GL520_SYSCTL_FAN2, "fan2", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_fan },
{ GL520_SYSCTL_TEMP1, "temp1", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_temp },
{ GL520_SYSCTL_TEMP2, "temp2", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_temp },
{ GL520_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_fan_div },
{ GL520_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_alarms },
{ GL520_SYSCTL_BEEP, "beep", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_beep },
{ GL520_SYSCTL_FAN1OFF, "fan1off", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_fan1off },
{ GL520_SYSCTL_CONFIG, "config", NULL, 0, 0644, NULL, &sensors_proc_real,
&sensors_sysctl_real, NULL, &gl520_config },
{ 0 }
};
/* Used by init/cleanup */
static int __initdata gl520_initialized = 0;
/* I choose here for semi-static GL520SM allocation. Complete dynamic
allocation could also be used; the code needed for this would probably
take more memory than the datastructure takes now. */
static int gl520_id = 0;
int gl520_attach_adapter(struct i2c_adapter *adapter)
{
return sensors_detect(adapter,&addr_data,gl520_detect);
}
static int gl520_detect(struct i2c_adapter *adapter, int address, int kind)
{
int i;
struct i2c_client *new_client;
struct gl520_data *data;
int err=0;
const char *type_name = "";
char client_name[32];
/* Make sure we aren't probing the ISA bus!! This is just a safety check
at this moment; sensors_detect really won't call us. */
#ifdef DEBUG
if (i2c_is_isa_adapter(adapter)) {
printk("gl520sm.o: gl520_detect called for an ISA bus adapter?!?\n");
return 0;
}
#endif
/* We need address registration for the I2C bus too. That is not yet
implemented. */
/* 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 gl520_{read,write}_value. */
if (! (new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct gl520_data),
GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR0;
}
data = (struct gl520_data *) (new_client + 1);
new_client->addr = address;
new_client->data = data;
new_client->adapter = adapter;
new_client->driver = &gl520_driver;
/* Determine the chip type. */
if (gl520_read_value(new_client,GL520_REG_CHIP_ID) != 0x20) {
printk("gl520sm.o: Ignoring 'force' parameter for unknown chip at "
"adapter %d, address 0x%02x\n",i2c_adapter_id(adapter),address);
goto ERROR1;
} else {
kind = gl520sm;
}
i = gl520_read_value(new_client,GL520_REG_REVISION);
if (kind == gl520sm) {
type_name = "gl520sm";
sprintf(client_name, "GL520SM Revision %02x chip", i);
} else {
#ifdef DEBUG
printk("gl520sm.o: Internal error: unknown kind (%d)?!?",kind);
#endif
goto ERROR1;
}
/* Fill in the remaining client fields and put it into the global list */
strcpy(new_client->name,client_name);
data->type = kind;
new_client->id = gl520_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(new_client,
type_name,
gl520_dir_table_template)) < 0) {
err = i;
goto ERROR4;
}
data->sysctl_id = i;
/* Initialize the GL520SM chip */
data->two_temps=1;
data->alarm_mask=0xff;
gl520_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;
}
/* Called when we have found a new GL520SM. It should set limits, etc. */
void gl520_init_client(struct i2c_client *client)
{
/* Power-on defaults (bit 7=1) */
gl520_write_value(client,GL520_REG_CONF,0x80);
/* No noisy output (bit 2=1), Comparator mode (bit 3=0), two fans (bit4=0),
standby mode (bit6=0) */
gl520_write_value(client,GL520_REG_CONF,0x04);
/* Never interrupts */
gl520_write_value(client,GL520_REG_MASK,0x00);
gl520_write_value(client,GL520_REG_TEMP1_HYST,
TEMP_TO_REG(GL520_INIT_TEMP_HYST));
gl520_write_value(client,GL520_REG_TEMP1_OVER,
TEMP_TO_REG(GL520_INIT_TEMP_OVER));
/* We set Temp2, but not Vin4. */
gl520_write_value(client,GL520_REG_TEMP2_HYST,
TEMP_TO_REG(GL520_INIT_TEMP_HYST));
gl520_write_value(client,GL520_REG_TEMP2_OVER,
TEMP_TO_REG(GL520_INIT_TEMP_OVER));
gl520_write_value(client,GL520_REG_MISC,(DIV_TO_REG(2) << 6) |
(DIV_TO_REG(2) << 4));
gl520_write_value(client,GL520_REG_FAN_LIMIT,
(FAN_TO_REG(GL520_INIT_FAN_MIN_1,2) << 8) |
FAN_TO_REG(GL520_INIT_FAN_MIN_2,2));
gl520_write_value(client,GL520_REG_VIN1_LIMIT,
(IN_TO_REG(GL520_INIT_VIN_MAX_1) << 8) |
IN_TO_REG(GL520_INIT_VIN_MIN_1));
gl520_write_value(client,GL520_REG_VIN2_LIMIT,
(IN_TO_REG(GL520_INIT_VIN_MAX_2) << 8) |
IN_TO_REG(GL520_INIT_VIN_MIN_2));
gl520_write_value(client,GL520_REG_VIN3_LIMIT,
(IN_TO_REG(GL520_INIT_VIN_MAX_3) << 8) |
IN_TO_REG(GL520_INIT_VIN_MIN_3));
gl520_write_value(client,GL520_REG_VDD_LIMIT,
(VDD_TO_REG(GL520_INIT_VDD_MAX) << 8) |
VDD_TO_REG(GL520_INIT_VDD_MIN));
/* Clear status register (bit 5=1), start (bit6=1) */
gl520_write_value(client,GL520_REG_CONF,0x24);
gl520_write_value(client,GL520_REG_CONF,0x44);
}
int gl520_detach_client(struct i2c_client *client)
{
int err;
sensors_deregister_entry(((struct gl520_data *)(client->data))->sysctl_id);
if ((err = i2c_detach_client(client))) {
printk("gl520sm.o: Client deregistration failed, client not detached.\n");
return err;
}
kfree(client);
return 0;
}
/* No commands defined yet */
int gl520_command(struct i2c_client *client, unsigned int cmd, void *arg)
{
return 0;
}
/* Nothing here yet */
void gl520_inc_use (struct i2c_client *client)
{
#ifdef MODULE
MOD_INC_USE_COUNT;
#endif
}
/* Nothing here yet */
void gl520_dec_use (struct i2c_client *client)
{
#ifdef MODULE
MOD_DEC_USE_COUNT;
#endif
}
u16 swap_bytes(u16 val)
{
return (val >> 8) | (val << 8);
}
/* Registers 0x07 to 0x0c are word-sized, others are byte-sized
GL520 uses a high-byte first convention, which is exactly opposite to
the usual practice. */
int gl520_read_value(struct i2c_client *client, u8 reg)
{
if ((reg >= 0x07) && (reg <= 0x0c))
return swap_bytes(i2c_smbus_read_word_data(client->adapter,client->addr,reg));
else
return i2c_smbus_read_byte_data(client->adapter,client->addr,reg);
}
/* Registers 0x07 to 0x0c are word-sized, others are byte-sized
GL520 uses a high-byte first convention, which is exactly opposite to
the usual practice. */
int gl520_write_value(struct i2c_client *client, u8 reg, u16 value)
{
if ((reg >= 0x07) && (reg <= 0x0c))
return i2c_smbus_write_word_data(client->adapter,client->addr,reg,
swap_bytes(value));
else
return i2c_smbus_write_byte_data(client->adapter,client->addr,reg,value);
}
void gl520_update_client(struct i2c_client *client)
{
struct gl520_data *data = client->data;
int val;
down(&data->update_lock);
if ((jiffies - data->last_updated > HZ+HZ/2 ) ||
(jiffies < data->last_updated) || ! data->valid) {
#ifdef DEBUG
printk("Starting gl520 update\n");
#endif
data->alarms = gl520_read_value(client,GL520_REG_INT);
data->beeps = gl520_read_value(client,GL520_REG_ALARM);
data->vid = gl520_read_value(client,GL520_REG_VID) & 0x1f;
val = gl520_read_value(client,GL520_REG_VDD_LIMIT);
data->voltage_min[0] = val & 0xff;
data->voltage_max[0] = (val >> 8) & 0xff;
val = gl520_read_value(client,GL520_REG_VIN1_LIMIT);
data->voltage_min[1] = val & 0xff;
data->voltage_max[1] = (val >> 8) & 0xff;
val = gl520_read_value(client,GL520_REG_VIN2_LIMIT);
data->voltage_min[2] = val & 0xff;
data->voltage_max[2] = (val >> 8) & 0xff;
val = gl520_read_value(client,GL520_REG_VIN3_LIMIT);
data->voltage_min[3] = val & 0xff;
data->voltage_max[3] = (val >> 8) & 0xff;
val = gl520_read_value(client,GL520_REG_FAN_COUNT);
data->fan[0] = (val >> 8) & 0xff;
data->fan[1] = val & 0xff;
val = gl520_read_value(client,GL520_REG_FAN_LIMIT);
data->fan_min[0] = (val >> 8) & 0xff;
data->fan_min[1] = val & 0xff;
data->temp[0] = gl520_read_value(client,GL520_REG_TEMP1);
data->temp_over[0] = gl520_read_value(client,GL520_REG_TEMP1_OVER);
data->temp_hyst[0] = gl520_read_value(client,GL520_REG_TEMP1_HYST);
val = gl520_read_value(client,GL520_REG_MISC);
data->fan_div[0] = (val >> 6) & 0x03;
data->fan_div[1] = (val >> 4) & 0x03;
data->alarms &= data->alarm_mask;
val = gl520_read_value(client, GL520_REG_CONF);
data->beep_enable = (val >> 2) & 1;
data->voltage[0] = gl520_read_value(client,GL520_REG_VDD);
data->voltage[1] = gl520_read_value(client,GL520_REG_VIN1);
data->voltage[2] = gl520_read_value(client,GL520_REG_VIN2);
data->voltage[3] = gl520_read_value(client,GL520_REG_VIN3);
/* Temp1 and Vin4 are the same input */
data->temp[1] = gl520_read_value(client,GL520_REG_TEMP2);
data->temp_over[1] = gl520_read_value(client,GL520_REG_TEMP2_OVER);
data->temp_hyst[1] = gl520_read_value(client,GL520_REG_TEMP2_HYST);
data->voltage[4] = gl520_read_value(client,GL520_REG_VIN4);
data->voltage_min[4] = gl520_read_value(client,GL520_REG_VIN4_MIN);
data->voltage_max[4] = gl520_read_value(client,GL520_REG_VIN4_MAX);
data->last_updated = jiffies;
data->valid = 1;
}
up(&data->update_lock);
}
void gl520_temp(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct gl520_data *data = client->data;
int nr = ctl_name - GL520_SYSCTL_TEMP1;
int regnr;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 1;
else if (operation == SENSORS_PROC_REAL_READ) {
gl520_update_client(client);
results[0] = TEMP_FROM_REG(data->temp_over[nr]);
results[1] = TEMP_FROM_REG(data->temp_hyst[nr]);
results[2] = TEMP_FROM_REG(data->temp[nr]);
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if ((nr==0) && (! data->two_temps))
return;
regnr=nr==0?GL520_REG_TEMP1_OVER:GL520_REG_TEMP2_OVER;
if (*nrels_mag >= 1) {
data->temp_over[nr] = TEMP_TO_REG(results[nr]);
gl520_write_value(client,regnr,data->temp_over[nr]);
}
regnr=nr==0?GL520_REG_TEMP1_HYST:GL520_REG_TEMP2_HYST;
if (*nrels_mag >= 2) {
data->temp_hyst[nr] = TEMP_TO_REG(results[nr]);
gl520_write_value(client,regnr,data->temp_hyst[nr]);
}
}
}
void gl520_vin(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct gl520_data *data = client->data;
int nr = ctl_name - GL520_SYSCTL_VDD;
int regnr,old=0;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 2;
else if (operation == SENSORS_PROC_REAL_READ) {
gl520_update_client(client);
results[0] = nr?IN_FROM_REG(data->voltage_min[nr]):
VDD_FROM_REG(data->voltage_min[nr]);
results[1] = nr?IN_FROM_REG(data->voltage_max[nr]):
VDD_FROM_REG(data->voltage_max[nr]);
results[2] = nr?IN_FROM_REG(data->voltage[nr]):
VDD_FROM_REG(data->voltage[nr]);
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (nr!=4) {
regnr=nr==0?GL520_REG_VDD_LIMIT:nr==1?GL520_REG_VIN1_LIMIT:nr==2?
GL520_REG_VIN2_LIMIT:GL520_REG_VIN3_LIMIT;
if (*nrels_mag == 1)
old = gl520_read_value(client,regnr) & 0xff00;
if (*nrels_mag >= 2) {
data->voltage_max[nr] = nr?IN_TO_REG(results[1]):VDD_TO_REG(results[1]);
old = data->voltage_max[nr] << 8;
}
if (*nrels_mag >= 1) {
data->voltage_min[nr] = nr?IN_TO_REG(results[0]):VDD_TO_REG(results[0]);
old |= data->voltage_min[nr];
gl520_write_value(client,regnr,old);
}
} else if (! data->two_temps) {
if (*nrels_mag == 1)
gl520_write_value(client,GL520_REG_VIN4_MIN,IN_TO_REG(results[0]));
if (*nrels_mag >= 2)
gl520_write_value(client,GL520_REG_VIN4_MAX,IN_TO_REG(results[1]));
}
}
}
void gl520_fan(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct gl520_data *data = client->data;
int nr = ctl_name - GL520_SYSCTL_FAN1;
int old;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
gl520_update_client(client);
results[0] = FAN_FROM_REG(data->fan_min[nr],
DIV_FROM_REG(data->fan_div[nr]));
results[1] = FAN_FROM_REG(data->fan[nr],DIV_FROM_REG(data->fan_div[nr]));
*nrels_mag = 2;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->fan_min[nr] = FAN_TO_REG(results[0],
DIV_FROM_REG(data->fan_div[nr]));
old = gl520_read_value(client,GL520_REG_FAN_LIMIT);
if (nr == 0) {
old = (old & 0x00ff) | (data->fan_min[nr] << 8);
if (results[0]==0)
data->alarm_mask &= ~0x20;
else
data->alarm_mask |= 0x20;
} else {
old = (old & 0xff00) | data->fan_min[nr];
if (results[0]==0)
data->alarm_mask &= ~0x40;
else
data->alarm_mask |= 0x40;
}
gl520_write_value(client,GL520_REG_FAN_LIMIT,old);
}
}
}
void gl520_alarms(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct gl520_data *data = client->data;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
gl520_update_client(client);
results[0] = ALARMS_FROM_REG(data->alarms);
*nrels_mag = 1;
}
}
void gl520_beep(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct gl520_data *data = client->data;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
gl520_update_client(client);
results[0] = BEEP_ENABLE_FROM_REG(data->beep_enable);
results[1] = BEEPS_FROM_REG(data->beeps);
*nrels_mag = 2;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->beep_enable = BEEP_ENABLE_TO_REG(results[0]);
gl520_write_value(client,GL520_REG_CONF,
(gl520_read_value(client,GL520_REG_CONF) & 0xfb) |
(data->beep_enable << 2));
}
if (*nrels_mag >= 2) {
data->beeps = BEEPS_TO_REG(results[1]) & data->alarm_mask;
gl520_write_value(client,GL520_REG_ALARM,data->beeps);
}
}
}
void gl520_fan_div(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct gl520_data *data = client->data;
int old;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
gl520_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 = gl520_read_value(client,GL520_REG_MISC);
if (*nrels_mag >= 2) {
data->fan_div[1] = DIV_TO_REG(results[1]);
old = (old & 0xcf) | (data->fan_div[1] << 4);
}
if (*nrels_mag >= 1) {
data->fan_div[0] = DIV_TO_REG(results[0]);
old = (old & 0x3f) | (data->fan_div[0] << 6);
}
gl520_write_value(client,GL520_REG_MISC,old);
}
}
void gl520_vid(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct gl520_data *data = client->data;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 2;
else if (operation == SENSORS_PROC_REAL_READ) {
gl520_update_client(client);
results[0] = VID_FROM_REG(data->vid);
*nrels_mag = 1;
}
}
void gl520_fan1off(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
int old;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
results[0] = ((gl520_read_value(client, GL520_REG_MISC) & 0x04) !=0);
*nrels_mag = 1;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
old = gl520_read_value(client, GL520_REG_MISC) & 0xfb;
if (results[0])
old |= 0x04;
gl520_write_value(client,GL520_REG_MISC,old);
}
}
}
void gl520_config(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct gl520_data *data = client->data;
int old;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
results[0] = ((gl520_read_value(client, GL520_REG_CONF) & 0x10)==0);
data->two_temps = results[0];
*nrels_mag = 1;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
old = gl520_read_value(client, GL520_REG_CONF) & 0xef;
if (! results[1]) {
old |= 0x10;
data->two_temps=0;
} else {
data->two_temps=1;
}
gl520_write_value(client,GL520_REG_CONF,old);
}
}
}
int __init sensors_gl520_init(void)
{
int res;
printk("gl520sm.o version %s (%s)\n",LM_VERSION,LM_DATE);
gl520_initialized = 0;
if ((res = i2c_add_driver(&gl520_driver))) {
printk("gl520sm.o: Driver registration failed, module not inserted.\n");
gl520_cleanup();
return res;
}
gl520_initialized ++;
return 0;
}
int __init gl520_cleanup(void)
{
int res;
if (gl520_initialized >= 1) {
if ((res = i2c_del_driver(&gl520_driver))) {
printk("gl520.o: Driver deregistration failed, module not removed.\n");
return res;
}
gl520_initialized --;
}
return 0;
}
EXPORT_NO_SYMBOLS;
#ifdef MODULE
MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl> and Kyösti Mälkki <kmalkki@cc.hut.fi>");
MODULE_DESCRIPTION("GL520SM driver");
int init_module(void)
{
return sensors_gl520_init();
}
int cleanup_module(void)
{
return gl520_cleanup();
}
#endif /* MODULE */
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