Hi,
I have ported Phil Pokorny's adm1026 driver for the 2.6.X kernel, following
the guide in /usr/src/linux/Documentation/i2c/porting-clients, referring
to the lm78 driver for examples, and adhering to the 4th auto-fan proposal
as outline recently by Jean Delvare.
Most of the code is essentially still Phil's. My contributions fall into
3 categories:
(1) Changes necessitated by the switch from procfs to sysfs interface.
(2) Fan control code following the 4th auto-fan proposal model.
(3) Other, minor housekeeping updates dictated by the aforementioned
"porting-clients" file.
The driver has been tested with an Arima HDAMA-based system.
As always, feedback is welcome.
Justin Thiessen
----------------
jthiessen at penguincomputing.com
Signed-off-by: Justin Thiessen
-------------
Code follows:
-------------
/*
adm1026.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring
Copyright (C) 2002, 2003 Philip Pokorny <ppokorny at penguincomputing.com>
Copyright (C) 2004 Justin Thiessen <jthiessen at penguincomputing.com>
Chip details at:
<http://www.analog.com/UploadedFiles/Data_Sheets/779263102ADM1026_a.pdf>
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.
CHANGELOG
2003-03-13 Initial development
2003-05-07 First Release. Includes GPIO fixup and full
functionality.
2003-05-18 Minor fixups and tweaks.
Print GPIO config after fixup.
Adjust fan MIN if DIV changes.
2003-05-21 Fix printing of FAN/GPIO config
Fix silly bug in fan_div logic
Fix fan_min handling so that 0xff is 0 is 0xff
2003-05-25 Fix more silly typos...
2003-06-11 Change FAN_xx_REG macros to use different scaling
Most (all?) drivers assume two pulses per rev fans
and the old scaling was producing double the RPM's
Thanks to Jerome Hsiao @ Arima for pointing this out.
2004-01-27 Remove use of temporary ID. Define addresses as a range.
2004-10-18 Port to kernel 2.6.X and sysfs interface.
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/i2c-sensor.h>
#include <linux/i2c-vid.h>
/* Addresses to scan */
static unsigned short normal_i2c[] = { I2C_CLIENT_END };
static unsigned short normal_i2c_range[] = { 0x2c, 0x2e, I2C_CLIENT_END };
static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
static unsigned int normal_isa_range[] = { I2C_CLIENT_ISA_END };
/* Insmod parameters */
/* Insmod parameters */
SENSORS_INSMOD_1(adm1026);
static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1 };
static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1 };
static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1 };
static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1 };
static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
MODULE_PARM(gpio_input,"1-17i");
MODULE_PARM_DESC(gpio_input,"List of GPIO pins (0-16) to program as inputs");
MODULE_PARM(gpio_output,"1-17i");
MODULE_PARM_DESC(gpio_output,"List of GPIO pins (0-16) to program as "
"outputs");
MODULE_PARM(gpio_inverted,"1-17i");
MODULE_PARM_DESC(gpio_inverted,"List of GPIO pins (0-16) to program as "
"inverted");
MODULE_PARM(gpio_normal,"1-17i");
MODULE_PARM_DESC(gpio_normal,"List of GPIO pins (0-16) to program as "
"normal/non-inverted");
MODULE_PARM(gpio_fan,"1-8i");
MODULE_PARM_DESC(gpio_fan,"List of GPIO pins (0-7) to program as fan tachs");
/* Many ADM1026 constants specified below */
/* The ADM1026 registers */
#define ADM1026_REG_CONFIG1 (0x00)
#define CFG1_MONITOR (0x01)
#define CFG1_INT_ENABLE (0x02)
#define CFG1_INT_CLEAR (0x04)
#define CFG1_AIN8_9 (0x08)
#define CFG1_THERM_HOT (0x10)
#define CFG1_DAC_AFC (0x20)
#define CFG1_PWM_AFC (0x40)
#define CFG1_RESET (0x80)
#define ADM1026_REG_CONFIG2 (0x01)
/* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */
#define ADM1026_REG_CONFIG3 (0x07)
#define CFG3_GPIO16_ENABLE (0x01)
#define CFG3_CI_CLEAR (0x02)
#define CFG3_VREF_250 (0x04)
#define CFG3_GPIO16_DIR (0x40)
#define CFG3_GPIO16_POL (0x80)
#define ADM1026_REG_E2CONFIG (0x13)
#define E2CFG_READ (0x01)
#define E2CFG_WRITE (0x02)
#define E2CFG_ERASE (0x04)
#define E2CFG_ROM (0x08)
#define E2CFG_CLK_EXT (0x80)
/* There are 10 general analog inputs and 7 dedicated inputs
* They are:
* 0 - 9 = AIN0 - AIN9
* 10 = Vbat
* 11 = 3.3V Standby
* 12 = 3.3V Main
* 13 = +5V
* 14 = Vccp (CPU core voltage)
* 15 = +12V
* 16 = -12V
*/
static u16 REG_IN[] = {
0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
0x36, 0x37, 0x27, 0x29, 0x26, 0x2a,
0x2b, 0x2c, 0x2d, 0x2e, 0x2f
};
static u16 REG_IN_MIN[] = {
0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d,
0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a,
0x4b, 0x4c, 0x4d, 0x4e, 0x4f
};
static u16 REG_IN_MAX[] = {
0x50, 0x51, 0x52, 0x53, 0x54, 0x55,
0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42,
0x43, 0x44, 0x45, 0x46, 0x47
};
#define ADM1026_REG_IN(nr) (REG_IN[(nr)])
#define ADM1026_REG_IN_MIN(nr) (REG_IN_MIN[(nr)])
#define ADM1026_REG_IN_MAX(nr) (REG_IN_MAX[(nr)])
/* Temperatures are:
* 0 - Internal
* 1 - External 1
* 2 - External 2
*/
static u16 REG_TEMP[] = { 0x1f, 0x28, 0x29 };
static u16 REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 };
static u16 REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 };
static u16 REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 };
static u16 REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f };
static u16 REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f };
#define ADM1026_REG_TEMP(nr) (REG_TEMP[(nr)])
#define ADM1026_REG_TEMP_MIN(nr) (REG_TEMP_MIN[(nr)])
#define ADM1026_REG_TEMP_MAX(nr) (REG_TEMP_MAX[(nr)])
#define ADM1026_REG_TEMP_TMIN(nr) (REG_TEMP_TMIN[(nr)])
#define ADM1026_REG_TEMP_THERM(nr) (REG_TEMP_THERM[(nr)])
#define ADM1026_REG_TEMP_OFFSET(nr) (REG_TEMP_OFFSET[(nr)])
#define ADM1026_REG_FAN(nr) (0x38 + (nr))
#define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr))
#define ADM1026_REG_FAN_DIV_0_3 (0x02)
#define ADM1026_REG_FAN_DIV_4_7 (0x03)
#define ADM1026_REG_DAC (0x04)
#define ADM1026_REG_PWM (0x05)
#define ADM1026_REG_GPIO_CFG_0_3 (0x08)
#define ADM1026_REG_GPIO_CFG_4_7 (0x09)
#define ADM1026_REG_GPIO_CFG_8_11 (0x0a)
#define ADM1026_REG_GPIO_CFG_12_15 (0x0b)
/* CFG_16 in REG_CFG3 */
#define ADM1026_REG_GPIO_STATUS_0_7 (0x24)
#define ADM1026_REG_GPIO_STATUS_8_15 (0x25)
/* STATUS_16 in REG_STATUS4 */
#define ADM1026_REG_GPIO_MASK_0_7 (0x1c)
#define ADM1026_REG_GPIO_MASK_8_15 (0x1d)
/* MASK_16 in REG_MASK4 */
#define ADM1026_REG_COMPANY 0x16
#define ADM1026_REG_VERSTEP 0x17
/* These are the recognized values for the above regs */
#define ADM1026_COMPANY_ANALOG_DEV 0x41
#define ADM1026_VERSTEP_GENERIC 0x40
#define ADM1026_VERSTEP_ADM1026 0x44
#define ADM1026_REG_MASK1 0x18
#define ADM1026_REG_MASK2 0x19
#define ADM1026_REG_MASK3 0x1a
#define ADM1026_REG_MASK4 0x1b
#define ADM1026_REG_STATUS1 0x20
#define ADM1026_REG_STATUS2 0x21
#define ADM1026_REG_STATUS3 0x22
#define ADM1026_REG_STATUS4 0x23
#define ADM1026_FAN_ACTIVATION_TEMP_HYST -6
#define ADM1026_FAN_CONTROL_TEMP_RANGE 20
/* 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.
*/
/* IN are scaled acording to built-in resistors. These are the
* voltages corresponding to 3/4 of full scale (192 or 0xc0)
* NOTE: The -12V input needs an additional factor to account
* for the Vref pullup resistor.
* NEG12_OFFSET = SCALE * Vref / V-192 - Vref
* = 13875 * 2.50 / 1.875 - 2500
* = 16000
*/
#if 1
/* The values in this table are based on Table II, page 15 of the
* datasheet.
*/
static int adm1026_scaling[] = { /* .001 Volts */
2250, 2250, 2250, 2250, 2250, 2250,
1875, 1875, 1875, 1875, 3000, 3330,
3330, 4995, 2250, 12000, 13875
};
#define NEG12_OFFSET 16000
#else
/* The values in this table are based on the resistors in
* Figure 5 on page 16. But the 3.3V inputs are not in
* the figure and the values for the 5V input are wrong.
* For 5V, I'm guessing that R2 at 55.2k is right, but
* the total resistance should be 1400 or 1449 like the
* other inputs. Using 1449, gives 4.922V at 192.
*/
static int adm1026_scaling[] = { /* .001 Volts */
2249, 2249, 2249, 2249, 2249, 2249,
1875, 1875, 1875, 1875, 3329, 3329,
3329, 4922, 2249, 11969, 13889
};
#define NEG12_OFFSET 16019
#endif
#define SCALE(val,from,to) (((val)*(to) + ((from)/2))/(from))
#define INS_TO_REG(n,val) (SENSORS_LIMIT(SCALE(val,adm1026_scaling[n],192),\
0,255))
#if 0 /* If we have extended A/D bits */
#define INSEXT_FROM_REG(n,val,ext) (SCALE((val)*4 + (ext),192*4,\
adm1026_scaling[n]))
#define INS_FROM_REG(n,val) (INSEXT_FROM_REG(n,val,0))
#else
#define INS_FROM_REG(n,val) (SCALE(val,192,adm1026_scaling[n]))
#endif
/* FAN speed is measured using 22.5kHz clock and counts for 2 pulses
* and we assume a 2 pulse-per-rev fan tach signal
* 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000
*/
#define FAN_TO_REG(val,div) ((val)<=0 ? 0xff : SENSORS_LIMIT(1350000/((val)*\
(div)),1,254))
#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==0xff ? 0 : 1350000/((val)*\
(div)))
#define DIV_FROM_REG(val) (1<<(val))
#define DIV_TO_REG(val) ((val)>=8 ? 3 : (val)>=4 ? 2 : (val)>=2 ? 1 : 0)
/* Temperature is reported in 1 degC increments */
#define TEMP_TO_REG(val) (SENSORS_LIMIT((val+500)/1000,-127,127))
#define TEMP_FROM_REG(val) (val * 1000)
#define OFFSET_TO_REG(val) (SENSORS_LIMIT((val+500)/1000,-127,127))
#define OFFSET_FROM_REG(val) (val * 1000)
#define PWM_TO_REG(val) (SENSORS_LIMIT(val,0,255))
#define PWM_FROM_REG(val) (val)
/* Analog output is a voltage, but it's used like a PWM
* Seems like this should be scaled, but to be consistent
* with other drivers, we do it this way.
*/
#define DAC_TO_REG(val) (SENSORS_LIMIT(val,0,255))
#define DAC_FROM_REG(val) (val)
/* sensors_vid.h defines vid_from_reg() */
#define VID_FROM_REG(val,vrm) (vid_from_reg(val,vrm))
#define ALARMS_FROM_REG(val) (val)
/* Unlike some other drivers we DO NOT set initial limits. Use
* the config file to set limits.
*/
/* Typically used with systems using a v9.1 VRM spec ? */
#define ADM1026_INIT_VRM 91
#define ADM1026_INIT_VID -1
/* Chip sampling rates
*
* Some sensors are not updated more frequently than once per second
* so it doesn't make sense to read them more often than that.
* We cache the results and return the saved data if the driver
* is called again before a second has elapsed.
*
* Also, there is significant configuration data for this chip
* So, we keep the config data up to date in the cache
* when it is written and only sample it once every 5 *minutes*
*/
#define ADM1026_DATA_INTERVAL (1 * HZ)
#define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ)
/* We allow for multiple chips in a single system.
*
* For each registered ADM1026, we need to keep state information
* at client->data. The adm1026_data structure is dynamically
* allocated, when a new client structure is allocated. */
struct pwm_data {
u8 pwm;
u8 enable;
u8 auto_pwm_min;
};
struct adm1026_data {
struct semaphore lock;
enum chips type;
struct semaphore update_lock;
int valid; /* !=0 if following fields are valid */
unsigned long last_reading; /* In jiffies */
unsigned long last_config; /* In jiffies */
u8 in[17]; /* Register value */
u8 in_max[17]; /* Register value */
u8 in_min[17]; /* Register value */
s8 temp[3]; /* Register value */
s8 temp_min[3]; /* Register value */
s8 temp_max[3]; /* Register value */
s8 temp_tmin[3]; /* Register value */
s8 temp_therm[3]; /* Register value */
s8 temp_offset[3]; /* Register value */
u8 fan[8]; /* Register value */
u8 fan_min[8]; /* Register value */
u8 fan_div[8]; /* Decoded value */
struct pwm_data pwm[2]; /* Pwm control values */
int vid; /* Decoded value */
u8 vrm; /* VRM version */
long alarms; /* Register encoding, combined */
long alarm_mask; /* Register encoding, combined */
long gpio; /* Register encoding, combined */
long gpio_mask; /* Register encoding, combined */
u8 gpio_config[17]; /* Decoded value */
u8 config1; /* Register value */
u8 config2; /* Register value */
u8 config3; /* Register value */
};
static int adm1026_attach_adapter(struct i2c_adapter *adapter);
static int adm1026_detect(struct i2c_adapter *adapter, int address,
int kind);
static int adm1026_detach_client(struct i2c_client *client);
static int adm1026_read_value(struct i2c_client *client, u8 register);
static int adm1026_write_value(struct i2c_client *client, u8 register,
int value);
static void adm1026_print_gpio(struct i2c_client *client);
static void adm1026_fixup_gpio(struct i2c_client *client);
static struct adm1026_data *adm1026_update_device(struct device *dev);
static void adm1026_init_client(struct i2c_client *client);
static struct i2c_driver adm1026_driver = {
.owner = THIS_MODULE,
.name = "adm1026",
/* .id = I2C_DRIVERID_ADM1026, */
.flags = I2C_DF_NOTIFY,
.attach_adapter = adm1026_attach_adapter,
.detach_client = adm1026_detach_client,
};
/* Unique ID assigned to each ADM1026 detected */
static int adm1026_id = 0;
int adm1026_attach_adapter(struct i2c_adapter *adapter)
{
if (!(adapter->class & I2C_ADAP_CLASS_SMBUS)) {
return 0;
}
return i2c_detect(adapter, &addr_data, adm1026_detect);
}
int adm1026_detach_client(struct i2c_client *client)
{
i2c_detach_client(client);
kfree(client);
return 0;
}
int adm1026_read_value(struct i2c_client *client, u8 reg)
{
int res;
if( reg < 0x80 ) {
/* "RAM" locations */
res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
} else {
/* EEPROM, do nothing */
res = 0 ;
}
return res ;
}
int adm1026_write_value(struct i2c_client *client, u8 reg, int value)
{
int res ;
if( reg < 0x80 ) {
/* "RAM" locations */
res = i2c_smbus_write_byte_data(client, reg, value);
} else {
/* EEPROM, do nothing */
res = 0 ;
}
return res ;
}
void adm1026_init_client(struct i2c_client *client)
{
int value, i;
struct adm1026_data *data = i2c_get_clientdata(client);
dev_dbg(&client->dev, "adm1026(%d): Initializing device\n",
client->id);
/* Read chip config */
data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);
data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);
data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);
/* Inform user of chip config */
dev_dbg(&client->dev, "adm1026(%d): ADM1026_REG_CONFIG1 is: 0x%02x\n",
client->id, data->config1 );
if( (data->config1 & CFG1_MONITOR) == 0 ) {
dev_dbg(&client->dev, "adm1026(%d): Monitoring not currently "
"enabled.\n", client->id );
}
if( data->config1 & CFG1_INT_ENABLE ) {
dev_dbg(&client->dev, "adm1026(%d): SMBALERT interrupts are "
"enabled.\n", client->id );
}
if( data->config1 & CFG1_AIN8_9 ) {
dev_dbg(&client->dev, "adm1026(%d): in8 and in9 enabled. "
"temp3 disabled.\n", client->id );
} else {
dev_dbg(&client->dev, "adm1026(%d): temp3 enabled. in8 and "
"in9 disabled.\n", client->id );
}
if( data->config1 & CFG1_THERM_HOT ) {
dev_dbg(&client->dev, "adm1026(%d): Automatic THERM, PWM, "
"and temp limits enabled.\n", client->id );
}
value = data->config3 ;
if( data->config3 & CFG3_GPIO16_ENABLE ) {
dev_dbg(&client->dev, "adm1026(%d): GPIO16 enabled. THERM "
"pin disabled.\n", client->id );
} else {
dev_dbg(&client->dev, "adm1026(%d): THERM pin enabled. "
"GPIO16 disabled.\n", client->id );
}
if( data->config3 & CFG3_VREF_250 ) {
dev_dbg(&client->dev, "adm1026(%d): Vref is 2.50 Volts.\n",
client->id );
} else {
dev_dbg(&client->dev, "adm1026(%d): Vref is 1.82 Volts.\n",
client->id );
}
/* Read and pick apart the existing GPIO configuration */
value = 0 ;
for( i = 0 ; i <= 15 ; ++i ) {
if( (i & 0x03) == 0 ) {
value = adm1026_read_value(client,
ADM1026_REG_GPIO_CFG_0_3 + i/4 );
}
data->gpio_config[i] = value & 0x03 ;
value >>= 2 ;
}
data->gpio_config[16] = (data->config3 >> 6) & 0x03 ;
/* ... and then print it */
adm1026_print_gpio(client);
/* If the user asks us to reprogram the GPIO config, then
* do it now. But only if this is the first ADM1026.
*/
if( client->id == 0
&& (gpio_input[0] != -1 || gpio_output[0] != -1
|| gpio_inverted[0] != -1 || gpio_normal[0] != -1
|| gpio_fan[0] != -1 ) ) {
adm1026_fixup_gpio(client);
}
/* WE INTENTIONALLY make no changes to the limits,
* offsets, pwms, fans and zones. If they were
* configured, we don't want to mess with them.
* If they weren't, the default is 100% PWM, no
* control and will suffice until 'sensors -s'
* can be run by the user. We DO set the default
* values for pwm[N].auto_pwm_min to their maximum
* so that enabling automatic pwm fan control
* without first setting a value for the associated
* pwm[N].auto_pwm_min will not result in potentially
* dangerous fan speed decrease.
*/
data->pwm[0].auto_pwm_min=15;
data->pwm[1].auto_pwm_min=15;
/* Start monitoring */
value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
/* Set MONITOR, clear interrupt acknowledge and s/w reset */
value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET) ;
dev_dbg(&client->dev, "adm1026(%d): Setting CONFIG to: 0x%02x\n",
client->id, value );
data->config1 = value ;
adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
}
void adm1026_print_gpio(struct i2c_client *client)
{
struct adm1026_data *data = i2c_get_clientdata(client);
int i ;
dev_dbg(&client->dev, "adm1026(%d): GPIO config is:\nadm1026(%d):",
client->id, client->id );
for( i = 0 ; i <= 7 ; ++i ) {
if( data->config2 & (1 << i) ) {
dev_dbg(&client->dev, " %sGP%s%d",
data->gpio_config[i] & 0x02 ? "" : "!",
data->gpio_config[i] & 0x01 ? "OUT" : "IN",
i );
} else {
dev_dbg(&client->dev, " FAN%d", i );
}
}
dev_dbg(&client->dev, "\nadm1026(%d):", client->id );
for( i = 8 ; i <= 15 ; ++i ) {
dev_dbg(&client->dev, " %sGP%s%d",
data->gpio_config[i] & 0x02 ? "" : "!",
data->gpio_config[i] & 0x01 ? "OUT" : "IN",
i );
}
if( data->config3 & CFG3_GPIO16_ENABLE ) {
dev_dbg(&client->dev, " %sGP%s16\n",
data->gpio_config[16] & 0x02 ? "" : "!",
data->gpio_config[16] & 0x01 ? "OUT" : "IN" );
} else {
/* GPIO16 is THERM */
dev_dbg(&client->dev, " THERM\n" );
}
}
void adm1026_fixup_gpio(struct i2c_client *client)
{
struct adm1026_data *data = i2c_get_clientdata(client);
int i ;
int value ;
/* Make the changes requested. */
/* We may need to unlock/stop monitoring or soft-reset the
* chip before we can make changes. This hasn't been
* tested much. FIXME
*/
/* Make outputs */
for( i = 0 ; i <= 16 ; ++i ) {
if( gpio_output[i] >= 0 && gpio_output[i] <= 16 ) {
data->gpio_config[gpio_output[i]] |= 0x01 ;
}
/* if GPIO0-7 is output, it isn't a FAN tach */
if( gpio_output[i] >= 0 && gpio_output[i] <= 7 ) {
data->config2 |= 1 << gpio_output[i] ;
}
}
/* Input overrides output */
for( i = 0 ; i <= 16 ; ++i ) {
if( gpio_input[i] >= 0 && gpio_input[i] <= 16 ) {
data->gpio_config[gpio_input[i]] &= ~ 0x01 ;
}
/* if GPIO0-7 is input, it isn't a FAN tach */
if( gpio_input[i] >= 0 && gpio_input[i] <= 7 ) {
data->config2 |= 1 << gpio_input[i] ;
}
}
/* Inverted */
for( i = 0 ; i <= 16 ; ++i ) {
if( gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16 ) {
data->gpio_config[gpio_inverted[i]] &= ~ 0x02 ;
}
}
/* Normal overrides inverted */
for( i = 0 ; i <= 16 ; ++i ) {
if( gpio_normal[i] >= 0 && gpio_normal[i] <= 16 ) {
data->gpio_config[gpio_normal[i]] |= 0x02 ;
}
}
/* Fan overrides input and output */
for( i = 0 ; i <= 7 ; ++i ) {
if( gpio_fan[i] >= 0 && gpio_fan[i] <= 7 ) {
data->config2 &= ~( 1 << gpio_fan[i] );
}
}
/* Write new configs to registers */
adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);
data->config3 = (data->config3 & 0x3f)
| ((data->gpio_config[16] & 0x03) << 6) ;
adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
for( i = 15, value = 0 ; i >= 0 ; --i ) {
value <<= 2 ;
value |= data->gpio_config[i] & 0x03 ;
if( (i & 0x03) == 0 ) {
adm1026_write_value(client,
ADM1026_REG_GPIO_CFG_0_3 + i/4,
value );
value = 0 ;
}
}
/* Print the new config */
adm1026_print_gpio(client);
}
static struct adm1026_data *adm1026_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int i;
long value, alarms, gpio ;
down(&data->update_lock);
if (!data->valid
|| (jiffies - data->last_reading > ADM1026_DATA_INTERVAL )) {
/* Things that change quickly */
dev_dbg(&client->dev,"adm1026(%d): Reading sensor values\n",
client->id);
for (i = 0 ; i <= 16 ; ++i) {
data->in[i] =
adm1026_read_value(client, ADM1026_REG_IN(i));
}
for (i = 0 ; i <= 7 ; ++i) {
data->fan[i] =
adm1026_read_value(client, ADM1026_REG_FAN(i));
}
for (i = 0 ; i <= 2 ; ++i) {
/* NOTE: temp[] is s8 and we assume 2's complement
* "conversion" in the assignment */
data->temp[i] =
adm1026_read_value(client, ADM1026_REG_TEMP(i));
}
data->pwm[0].pwm = adm1026_read_value(client,
ADM1026_REG_PWM);
data->pwm[1].pwm = adm1026_read_value(client,
ADM1026_REG_DAC);
/* GPIO16 is MSbit of alarms, move it to gpio */
alarms = adm1026_read_value(client, ADM1026_REG_STATUS4);
gpio = alarms & 0x80 ? 0x0100 : 0 ; /* GPIO16 */
alarms &= 0x7f ;
alarms <<= 8 ;
alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3);
alarms <<= 8 ;
alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2);
alarms <<= 8 ;
alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1);
data->alarms = alarms ;
/* Read the GPIO values */
gpio |= adm1026_read_value(client,
ADM1026_REG_GPIO_STATUS_8_15);
gpio <<= 8 ;
gpio |= adm1026_read_value(client,
ADM1026_REG_GPIO_STATUS_0_7);
data->gpio = gpio ;
data->last_reading = jiffies ;
}; /* last_reading */
if (!data->valid || (jiffies - data->last_config >
ADM1026_CONFIG_INTERVAL) ) {
/* Things that don't change often */
dev_dbg(&client->dev, "adm1026(%d): Reading config values\n",
client->id);
for (i = 0 ; i <= 16 ; ++i) {
data->in_min[i] = adm1026_read_value(client,
ADM1026_REG_IN_MIN(i));
data->in_max[i] = adm1026_read_value(client,
ADM1026_REG_IN_MAX(i));
}
value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3)
| (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7)
<< 8);
for (i = 0 ; i <= 7 ; ++i) {
data->fan_min[i] = adm1026_read_value(client,
ADM1026_REG_FAN_MIN(i));
data->fan_div[i] = DIV_FROM_REG(value & 0x03);
value >>= 2 ;
}
for (i = 0; i <= 2; ++i) {
/* NOTE: temp_xxx[] are s8 and we assume 2's
* complement "conversion" in the assignment
*/
data->temp_min[i] = adm1026_read_value(client,
ADM1026_REG_TEMP_MIN(i));
data->temp_max[i] = adm1026_read_value(client,
ADM1026_REG_TEMP_MAX(i));
data->temp_tmin[i] = adm1026_read_value(client,
ADM1026_REG_TEMP_TMIN(i));
data->temp_therm[i] = adm1026_read_value(client,
ADM1026_REG_TEMP_THERM(i));
data->temp_offset[i] = adm1026_read_value(client,
ADM1026_REG_TEMP_OFFSET(i));
}
/* Read the STATUS/alarm masks */
alarms = adm1026_read_value(client, ADM1026_REG_MASK4);
gpio = alarms & 0x80 ? 0x0100 : 0 ; /* GPIO16 */
alarms = (alarms & 0x7f) << 8 ;
alarms |= adm1026_read_value(client, ADM1026_REG_MASK3);
alarms <<= 8 ;
alarms |= adm1026_read_value(client, ADM1026_REG_MASK2);
alarms <<= 8 ;
alarms |= adm1026_read_value(client, ADM1026_REG_MASK1);
data->alarm_mask = alarms ;
/* Read the GPIO values */
gpio |= adm1026_read_value(client,
ADM1026_REG_GPIO_MASK_8_15);
gpio <<= 8 ;
gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7);
data->gpio_mask = gpio ;
/* Read the GPIO config */
data->config2 = adm1026_read_value(client,
ADM1026_REG_CONFIG2);
data->config3 = adm1026_read_value(client,
ADM1026_REG_CONFIG3);
data->gpio_config[16] = (data->config3 >> 6) & 0x03 ;
value = 0 ;
for( i = 0 ; i <= 15 ; ++i ) {
if( (i & 0x03) == 0 ) {
value = adm1026_read_value(client,
ADM1026_REG_GPIO_CFG_0_3 + i/4 );
}
data->gpio_config[i] = value & 0x03 ;
value >>= 2 ;
}
data->last_config = jiffies;
}; /* last_config */
/* We don't know where or even _if_ the VID might be on the GPIO
* pins. But the datasheet gives an example config showing
* GPIO11-15 being used to monitor VID0-4, so we go with that
* but make the vid WRITEABLE so if it's wrong, the user can
* set it in /etc/sensors.conf perhaps using an expression or
* 0 to trigger a re-read from the GPIO pins.
*/
if( data->vid == ADM1026_INIT_VID ) {
/* Hasn't been set yet, make a bold assumption */
dev_dbg(&client->dev, "adm1026(%d): Setting VID from "
"GPIO11-15.\n", client->id );
data->vid = (data->gpio >> 11) & 0x1f ;
}
data->valid = 1;
up(&data->update_lock);
return data;
}
/*
*
* Translating functions below
*
*/
static ssize_t show_in(struct device *dev, char *buf, int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
if (nr == 16) {
return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in[nr]) -
NEG12_OFFSET );
} else {
return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in[nr]) );
}
}
static ssize_t show_in_min(struct device *dev, char *buf, int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
if (nr == 16) {
return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr])
- NEG12_OFFSET );
} else {
return sprintf(buf,"%d\n", INS_FROM_REG(nr,
data->in_min[nr])); }
}
static ssize_t set_in_min(struct device *dev, const char *buf,
size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
down(&data->update_lock);
val = simple_strtol(buf, NULL, 10);
if (nr == 16) {
data->in_min[nr] = INS_TO_REG(nr, val + NEG12_OFFSET);
} else {
data->in_min[nr] = INS_TO_REG(nr, val);
}
adm1026_write_value(client, ADM1026_REG_IN_MIN(nr), data->in_min[nr]);
up(&data->update_lock);
return count;
}
static ssize_t show_in_max(struct device *dev, char *buf, int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
if (nr == 16) {
return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr])
- NEG12_OFFSET );
} else {
return sprintf(buf,"%d\n", INS_FROM_REG(nr,
data->in_max[nr]));
}
}
static ssize_t set_in_max(struct device *dev, const char *buf,
size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
down(&data->update_lock);
val = simple_strtol(buf, NULL, 10);
if (nr == 16) {
data->in_max[nr] = INS_TO_REG(nr, val+NEG12_OFFSET);
} else {
data->in_max[nr] = INS_TO_REG(nr, val);
}
adm1026_write_value(client, ADM1026_REG_IN_MAX(nr), data->in_max[nr]);
up(&data->update_lock);
return count;
}
#define in_reg(offset) \
static ssize_t show_in_##offset (struct device *dev, char *buf) \
{ \
return show_in(dev, buf, offset); \
} \
static ssize_t show_in_##offset##_min (struct device *dev, char *buf) \
{ \
return show_in_min(dev, buf, offset); \
} \
static ssize_t show_in_##offset##_max (struct device *dev, char *buf) \
{ \
return show_in_max(dev, buf, offset); \
} \
static ssize_t set_in_##offset##_min (struct device *dev, \
const char *buf, size_t count) \
{ \
return set_in_min(dev, buf, count, offset); \
} \
static ssize_t set_in_##offset##_max (struct device *dev, \
const char *buf, size_t count) \
{ \
return set_in_max(dev, buf, count, offset); \
} \
static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset, NULL) \
static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
show_in_##offset##_min, set_in_##offset##_min) \
static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
show_in_##offset##_max, set_in_##offset##_max)
in_reg(0);
in_reg(1);
in_reg(2);
in_reg(3);
in_reg(4);
in_reg(5);
in_reg(6);
in_reg(7);
in_reg(8);
in_reg(9);
in_reg(10);
in_reg(11);
in_reg(12);
in_reg(13);
in_reg(14);
in_reg(15);
in_reg(16); /* special-casing in16 but still lumping in with other in# */
/* Now add fan read/write functions */
static ssize_t show_fan(struct device *dev, char *buf, int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr],
data->fan_div[nr]) );
}
static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr],
data->fan_div[nr]) );
}
static ssize_t set_fan_min(struct device *dev, const char *buf,
size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
down(&data->update_lock);
val = simple_strtol(buf, NULL, 10);
data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]);
adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr),
data->fan_min[nr]);
up(&data->update_lock);
return count;
}
#define fan_offset(offset) \
static ssize_t show_fan_##offset (struct device *dev, char *buf) \
{ \
return show_fan(dev, buf, offset - 1); \
} \
static ssize_t show_fan_##offset##_min (struct device *dev, char *buf) \
{ \
return show_fan_min(dev, buf, offset - 1); \
} \
static ssize_t set_fan_##offset##_min (struct device *dev, \
const char *buf, size_t count) \
{ \
return set_fan_min(dev, buf, count, offset - 1); \
} \
static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, NULL) \
static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
show_fan_##offset##_min, set_fan_##offset##_min)
fan_offset(1);
fan_offset(2);
fan_offset(3);
fan_offset(4);
fan_offset(5);
fan_offset(6);
fan_offset(7);
fan_offset(8);
/* Adjust fan_min to account for new fan divisor */
void fixup_fan_min(struct device *dev, int fan, int old_div)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int new_min;
int new_div = data->fan_div[fan] ;
/* 0 and 0xff are special. Don't adjust them */
if( data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff ) {
return ;
}
new_min = data->fan_min[fan] * old_div / new_div ;
new_min = SENSORS_LIMIT(new_min, 1, 254);
data->fan_min[fan] = new_min ;
adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min);
}
/* Now add fan_div read/write functions */
static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", data->fan_div[nr]);
}
static ssize_t set_fan_div(struct device *dev, const char *buf,
size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val,orig_div,new_div,shift;
down(&data->update_lock);
val = simple_strtol(buf, NULL, 10);
orig_div = data->fan_div[nr];
new_div = DIV_TO_REG(val);
data->fan_div[nr] = DIV_FROM_REG(new_div);
if ( nr < 4) { /* 0 <= nr < 4 */
shift = 2 * nr;
adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3,
((DIV_TO_REG(orig_div) & (~(0x03 << shift))) |
(new_div << shift)));
} else { /* 3 < nr < 8 */
shift = 2 * (nr - 4);
adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7,
((DIV_TO_REG(orig_div) & (~(0x03 << (2 * shift)))) |
(new_div << shift)));
}
if ( data->fan_div[nr] != orig_div ) {
fixup_fan_min(dev,nr,orig_div);
}
up(&data->update_lock);
return count;
}
#define fan_offset_div(offset) \
static ssize_t show_fan_##offset##_div (struct device *dev, char *buf) \
{ \
return show_fan_div(dev, buf, offset - 1); \
} \
static ssize_t set_fan_##offset##_div (struct device *dev, \
const char *buf, size_t count) \
{ \
return set_fan_div(dev, buf, count, offset - 1); \
} \
static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
show_fan_##offset##_div, set_fan_##offset##_div)
fan_offset_div(1);
fan_offset_div(2);
fan_offset_div(3);
fan_offset_div(4);
fan_offset_div(5);
fan_offset_div(6);
fan_offset_div(7);
fan_offset_div(8);
/* Temps */
static ssize_t show_temp(struct device *dev, char *buf, int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp[nr]) );
}
static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) );
}
static ssize_t set_temp_min(struct device *dev, const char *buf,
size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
down(&data->update_lock);
val = simple_strtol(buf, NULL, 10);
data->temp_min[nr] = TEMP_TO_REG(val);
adm1026_write_value(client, ADM1026_REG_TEMP_MIN(nr),
data->temp_min[nr]);
up(&data->update_lock);
return count;
}
static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) );
}
static ssize_t set_temp_max(struct device *dev, const char *buf,
size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
down(&data->update_lock);
val = simple_strtol(buf, NULL, 10);
data->temp_max[nr] = TEMP_TO_REG(val);
adm1026_write_value(client, ADM1026_REG_TEMP_MAX(nr),
data->temp_max[nr]);
up(&data->update_lock);
return count;
}
#define temp_reg(offset) \
static ssize_t show_temp_##offset (struct device *dev, char *buf) \
{ \
return show_temp(dev, buf, offset - 1); \
} \
static ssize_t show_temp_##offset##_min (struct device *dev, char *buf) \
{ \
return show_temp_min(dev, buf, offset - 1); \
} \
static ssize_t show_temp_##offset##_max (struct device *dev, char *buf) \
{ \
return show_temp_max(dev, buf, offset - 1); \
} \
static ssize_t set_temp_##offset##_min (struct device *dev, \
const char *buf, size_t count) \
{ \
return set_temp_min(dev, buf, count, offset - 1); \
} \
static ssize_t set_temp_##offset##_max (struct device *dev, \
const char *buf, size_t count) \
{ \
return set_temp_max(dev, buf, count, offset - 1); \
} \
static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, NULL) \
static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
show_temp_##offset##_min, set_temp_##offset##_min) \
static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
show_temp_##offset##_max, set_temp_##offset##_max)
temp_reg(1);
temp_reg(2);
temp_reg(3);
static ssize_t show_temp_offset(struct device *dev, char *buf, int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_offset[nr]) );
}
static ssize_t set_temp_offset(struct device *dev, const char *buf,
size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
down(&data->update_lock);
val = simple_strtol(buf, NULL, 10);
data->temp_offset[nr] = TEMP_TO_REG(val);
adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET(nr),
data->temp_offset[nr]);
up(&data->update_lock);
return count;
}
#define temp_offset_reg(offset) \
static ssize_t show_temp_##offset##_offset (struct device *dev, char *buf) \
{ \
return show_temp_offset(dev, buf, offset - 1); \
} \
static ssize_t set_temp_##offset##_offset (struct device *dev, \
const char *buf, size_t count) \
{ \
return set_temp_offset(dev, buf, count, offset - 1); \
} \
static DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \
show_temp_##offset##_offset, set_temp_##offset##_offset)
temp_offset_reg(1);
temp_offset_reg(2);
temp_offset_reg(3);
static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev, char *buf,
int nr)
{
return sprintf(buf,"%d\n",
TEMP_FROM_REG(ADM1026_FAN_ACTIVATION_TEMP_HYST));
}
static ssize_t show_temp_auto_point2_temp(struct device *dev, char *buf,
int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", TEMP_FROM_REG((data->temp_tmin[nr] +
ADM1026_FAN_CONTROL_TEMP_RANGE)));
}
static ssize_t show_temp_auto_point1_temp(struct device *dev, char *buf,
int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_tmin[nr]) );
}
static ssize_t set_temp_auto_point1_temp(struct device *dev, const char *buf,
size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
down(&data->update_lock);
val = simple_strtol(buf, NULL, 10);
data->temp_tmin[nr] = TEMP_TO_REG(val);
adm1026_write_value(client, ADM1026_REG_TEMP_TMIN(nr),
data->temp_tmin[nr]);
up(&data->update_lock);
return count;
}
#define temp_auto_point(offset) \
static ssize_t show_temp##offset##_auto_point1_temp (struct device *dev, \
char *buf) \
{ \
return show_temp_auto_point1_temp(dev, buf, offset - 1); \
} \
static ssize_t set_temp##offset##_auto_point1_temp (struct device *dev, \
const char *buf, size_t count) \
{ \
return set_temp_auto_point1_temp(dev, buf, count, offset - 1); \
} \
static ssize_t show_temp##offset##_auto_point1_temp_hyst (struct device \
*dev, char *buf) \
{ \
return show_temp_auto_point1_temp_hyst(dev, buf, offset - 1); \
} \
static ssize_t show_temp##offset##_auto_point2_temp (struct device *dev, \
char *buf) \
{ \
return show_temp_auto_point2_temp(dev, buf, offset - 1); \
} \
static DEVICE_ATTR(temp##offset##_auto_point1_temp, S_IRUGO | S_IWUSR, \
show_temp##offset##_auto_point1_temp, \
set_temp##offset##_auto_point1_temp) \
static DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO, \
show_temp##offset##_auto_point1_temp_hyst, NULL) \
static DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO, \
show_temp##offset##_auto_point2_temp, NULL)
temp_auto_point(1);
temp_auto_point(2);
temp_auto_point(3);
static ssize_t show_temp_therm(struct device *dev, char *buf, int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_therm[nr]) );
}
static ssize_t set_temp_therm(struct device *dev, const char *buf,
size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
down(&data->update_lock);
val = simple_strtol(buf, NULL, 10);
data->temp_therm[nr] = TEMP_TO_REG(val);
adm1026_write_value(client, ADM1026_REG_TEMP_THERM(nr),
data->temp_therm[nr]);
up(&data->update_lock);
return count;
}
#define temp_therm_reg(offset) \
static ssize_t show_temp_##offset##_therm (struct device *dev, char *buf) \
{ \
return show_temp_therm(dev, buf, offset - 1); \
} \
static ssize_t set_temp_##offset##_therm (struct device *dev, \
const char *buf, size_t count) \
{ \
return set_temp_therm(dev, buf, count, offset - 1); \
} \
static DEVICE_ATTR(temp##offset##_therm, S_IRUGO | S_IWUSR, \
show_temp_##offset##_therm, set_temp_##offset##_therm)
temp_therm_reg(1);
temp_therm_reg(2);
temp_therm_reg(3);
/* static ssize_t show_analog_out_reg(struct device *dev, char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", DAC_FROM_REG(data->analog_out) );
}
static ssize_t set_analog_out_reg(struct device *dev, const char *buf,
size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
down(&data->update_lock);
val = simple_strtol(buf, NULL, 10);
data->analog_out = DAC_TO_REG(val);
adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out);
up(&data->update_lock);
return count;
}
static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg,
set_analog_out_reg)
*/
static ssize_t show_vid_reg(struct device *dev, char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", VID_FROM_REG(data->vid & 0x3f, data->vrm));
}
static ssize_t set_vid_reg(struct device *dev, const char *buf,
size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
val = simple_strtol(buf, NULL, 10);
if ( val > 0 ) {
data->vid = val & 0x3f;
} else {
data->vid = ADM1026_INIT_VID;
}
return count;
}
static DEVICE_ATTR(vid, S_IRUGO | S_IWUSR, show_vid_reg, set_vid_reg)
static ssize_t show_vrm_reg(struct device *dev, char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", data->vrm );
}
static ssize_t store_vrm_reg(struct device *dev, const char *buf,
size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
data->vrm = simple_strtol(buf, NULL, 10);
return count;
}
static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg)
static ssize_t show_alarms_reg(struct device *dev, char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf, "%ld\n", (long) ALARMS_FROM_REG(data->alarms));
}
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL)
static ssize_t show_alarm_mask(struct device *dev, char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%ld\n", data->alarm_mask );
}
static ssize_t set_alarm_mask(struct device *dev, const char *buf,
size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
unsigned long mask;
down(&data->update_lock);
val = simple_strtol(buf, NULL, 10);
data->alarm_mask = val & 0x7fffffff ;
mask = data->alarm_mask
| (data->gpio_mask & 0x10000 ? 0x80000000 : 0) ;
adm1026_write_value(client, ADM1026_REG_MASK1,
mask & 0xff);
mask >>= 8 ;
adm1026_write_value(client, ADM1026_REG_MASK2,
mask & 0xff);
mask >>= 8 ;
adm1026_write_value(client, ADM1026_REG_MASK3,
mask & 0xff);
mask >>= 8 ;
adm1026_write_value(client, ADM1026_REG_MASK4,
mask & 0xff);
up(&data->update_lock);
return count;
}
static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask,
set_alarm_mask)
static ssize_t show_gpio(struct device *dev, char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%ld\n", data->gpio );
}
static ssize_t set_gpio(struct device *dev, const char *buf,
size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
long gpio;
down(&data->update_lock) ;
val = simple_strtol(buf, NULL, 10) ;
data->gpio = val & 0x1ffff ;
gpio = data->gpio ;
adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7,gpio & 0xff);
gpio >>= 8 ;
adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15,gpio & 0xff);
gpio = ((gpio >> 1 ) & 0x80) | (data->alarms >> 24 & 0x7f) ;
adm1026_write_value(client, ADM1026_REG_STATUS4,gpio & 0xff) ;
up(&data->update_lock);
return count;
}
static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio)
static ssize_t show_gpio_mask(struct device *dev, char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%ld\n", data->gpio_mask );
}
static ssize_t set_gpio_mask(struct device *dev, const char *buf,
size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
long mask;
down(&data->update_lock);
val = simple_strtol(buf, NULL, 10);
data->gpio_mask = val & 0x1ffff;
mask = data->gpio_mask;
adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7,mask & 0xff);
mask >>= 8;
adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15,mask & 0xff);
mask = ((mask >> 1 ) & 0x80) | (data->alarm_mask >> 24 & 0x7f);
adm1026_write_value(client, ADM1026_REG_MASK1,mask & 0xff);
up(&data->update_lock);
return count;
}
static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask)
static ssize_t store_pwm_reg(struct i2c_client *client,
struct adm1026_data *data, size_t count, int nr)
{
if ( nr == 0 ) {
adm1026_write_value(client, ADM1026_REG_PWM,
data->pwm[nr].pwm);
} else { /* setting DAC rather than PWM */
adm1026_write_value(client, ADM1026_REG_DAC,
data->pwm[nr].pwm);
}
up(&data->update_lock);
return count;
}
static ssize_t show_pwm_reg(struct device *dev, char *buf, int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr].pwm) );
}
static ssize_t set_pwm_reg(struct device *dev, const char *buf,
size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
if ( data->pwm[nr].enable == 1) {
down(&data->update_lock);
val = simple_strtol(buf, NULL, 10);
data->pwm[nr].pwm = PWM_TO_REG(val);
return store_pwm_reg(client, data, count, nr);
}
return count;
}
static ssize_t store_auto_pwm_min(struct i2c_client *client,
struct adm1026_data *data, size_t count, int nr)
{
data->pwm[nr].pwm = PWM_TO_REG((data->pwm[nr].pwm & 0x0f) |
(data->pwm[nr].auto_pwm_min << 4));
if ( nr == 0 ) {
adm1026_write_value(client, ADM1026_REG_PWM,
data->pwm[nr].pwm);
} else { /* setting DAC rather than PWM */
adm1026_write_value(client, ADM1026_REG_DAC,
data->pwm[nr].pwm);
}
up(&data->update_lock);
return count;
}
static ssize_t show_auto_pwm_min(struct device *dev, char *buf, int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", data->pwm[nr].auto_pwm_min);
}
static ssize_t set_auto_pwm_min(struct device *dev, const char *buf,
size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
down(&data->update_lock);
val = simple_strtol(buf, NULL, 10);
data->pwm[nr].auto_pwm_min = SENSORS_LIMIT(val,0,15);
if (data->pwm[nr].enable == 2) { /* apply immediately */
return store_auto_pwm_min(client, data, count, nr);
} else { /* wait til automatic fan control is enabled to apply */
up(&data->update_lock);
return count;
}
}
static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf,"%d\n", data->pwm[nr].enable);
}
static ssize_t set_pwm_enable(struct device *dev, const char *buf,
size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
int val;
int old_enable;
down(&data->update_lock);
old_enable = data->pwm[nr].enable;
val = simple_strtol(buf, NULL, 10);
if (( val >= 0 ) && ( val < 3 )) {
data->pwm[nr].enable = val;
if ( nr == 0 ) { /* configure PWM access */
data->config1 = (data->config1 & ~CFG1_PWM_AFC)
| (( val == 2 ) ? CFG1_PWM_AFC : 0) ;
} else if ( nr == 1 ) { /* configure DAC access */
data->config1 = (data->config1 & ~CFG1_DAC_AFC)
| (( val == 2 ) ? CFG1_DAC_AFC : 0) ;
}
adm1026_write_value(client, ADM1026_REG_CONFIG1,
data->config1);
if ( val == 2 ) { /* apply pwmN_auto_pwm_min to pwmN */
return store_auto_pwm_min(client, data, count, nr);
} else if (!((old_enable == 1) && (val == 1))) {
/* set pwm to safe value */
data->pwm[nr].pwm = 255;
return store_pwm_reg(client, data, count, nr);
}
}
up(&data->update_lock);
return count;
}
/* enable PWM fan control */
#define pwm_control(offset) \
static ssize_t show_pwm##offset(struct device *dev, char *buf) \
{ \
return show_pwm_reg(dev, buf, offset -1); \
} \
static ssize_t set_pwm##offset (struct device *dev, const char *buf, \
size_t count) \
{ \
return set_pwm_reg(dev, buf, count, offset -1); \
} \
static ssize_t show_pwm##offset##_enable(struct device *dev, char *buf) \
{ \
return show_pwm_enable(dev, buf, offset -1 ); \
} \
static ssize_t set_pwm##offset##_enable (struct device *dev, \
const char *buf, size_t count) \
{ \
return set_pwm_enable(dev, buf, count, offset -1); \
} \
static ssize_t show_pwm##offset##_auto_pwm_min(struct device *dev, \
char *buf) \
{ \
return show_auto_pwm_min(dev, buf, offset -1); \
} \
static ssize_t set_pwm##offset##_auto_pwm_min(struct device *dev, \
const char *buf, size_t count) \
{ \
return set_auto_pwm_min(dev, buf, count, offset -1); \
} \
static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, show_pwm##offset, \
set_pwm##offset) \
static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
show_pwm##offset##_enable, set_pwm##offset##_enable) \
static DEVICE_ATTR(pwm##offset##_auto_pwm_min, S_IRUGO | S_IWUSR, \
show_pwm##offset##_auto_pwm_min, set_pwm##offset##_auto_pwm_min)
pwm_control(1);
pwm_control(2);
int adm1026_detect(struct i2c_adapter *adapter, int address,
int kind)
{
int company, verstep ;
struct i2c_client *new_client = NULL;
struct adm1026_data *data;
int err = 0;
const char *type_name = "";
if (i2c_is_isa_adapter(adapter)) {
/* This chip has no ISA interface */
goto exit ;
};
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
/* We need to be able to do byte I/O */
goto exit ;
};
/* 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 adm1026_{read,write}_value. */
if (!(new_client = kmalloc((sizeof(struct i2c_client)) +
sizeof(struct adm1026_data),
GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
memset(new_client, 0, sizeof(struct i2c_client) +
sizeof(struct adm1026_data));
data = (struct adm1026_data *) (new_client + 1);
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
new_client->driver = &adm1026_driver;
new_client->flags = 0;
/* Now, we do the remaining detection. */
company = adm1026_read_value(new_client, ADM1026_REG_COMPANY);
verstep = adm1026_read_value(new_client, ADM1026_REG_VERSTEP);
dev_dbg(&new_client->dev, "Detecting device at %d,0x%02x with"
" COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
i2c_adapter_id(new_client->adapter), new_client->addr,
company, verstep);
/* If auto-detecting, Determine the chip type. */
if (kind <= 0) {
dev_dbg(&new_client->dev, "Autodetecting device at %d,0x%02x "
"...\n", i2c_adapter_id(adapter), address );
if( company == ADM1026_COMPANY_ANALOG_DEV
&& verstep == ADM1026_VERSTEP_ADM1026 ) {
kind = adm1026 ;
} else if( company == ADM1026_COMPANY_ANALOG_DEV
&& (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC ) {
dev_err(&adapter->dev, "adm1026: "
"Unrecognized stepping 0x%02x. Defaulting to "
"ADM1026.\n", verstep);
kind = adm1026 ;
} else if( (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC ) {
dev_err(&adapter->dev, "adm1026: Found version/"
"stepping 0x%02x. Assuming generic ADM1026.\n",
verstep);
kind = any_chip ;
} else {
dev_dbg(&new_client->dev, "adm1026: Autodetection "
"failed\n");
/* Not an ADM1026 ... */
if( kind == 0 ) { /* User used force=x,y */
dev_err(&adapter->dev, "Generic ADM1026 not "
"found at %d,0x%02x. Try "
"force_adm1026.\n",
i2c_adapter_id(adapter), address );
}
err = 0 ;
goto exitfree;
}
}
/* Fill in the chip specific driver values */
switch (kind) {
case any_chip :
type_name = "adm1026";
break ;
case adm1026 :
type_name = "adm1026";
break ;
#if 0
/* Example of another adm1026 "compatible" device */
case adx1000 :
type_name = "adx1000";
memcpy( template, adx_specific, sizeof(adx_specific) );
template_next = template + CTLTBL_ADX1000 ;
break ;
#endif
default :
dev_err(&adapter->dev, "adm1026: Internal error, invalid "
"kind (%d)!", kind);
err = -EFAULT ;
goto exitfree;
}
strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
/* Fill in the remaining client fields */
new_client->id = adm1026_id++;
data->type = kind;
data->valid = 0;
init_MUTEX(&data->update_lock);
dev_dbg(&new_client->dev, "Assigning ID %d to %s at %d,0x%02x\n",
new_client->id, new_client->name,
i2c_adapter_id(new_client->adapter),
new_client->addr);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
goto exitfree;
/* Set the VRM version */
data->vrm = ADM1026_INIT_VRM ;
data->vid = ADM1026_INIT_VID ;
/* Initialize the ADM1026 chip */
adm1026_init_client(new_client);
/* Register sysfs hooks */
device_create_file(&new_client->dev, &dev_attr_in0_input);
device_create_file(&new_client->dev, &dev_attr_in0_max);
device_create_file(&new_client->dev, &dev_attr_in0_min);
device_create_file(&new_client->dev, &dev_attr_in1_input);
device_create_file(&new_client->dev, &dev_attr_in1_max);
device_create_file(&new_client->dev, &dev_attr_in1_min);
device_create_file(&new_client->dev, &dev_attr_in2_input);
device_create_file(&new_client->dev, &dev_attr_in2_max);
device_create_file(&new_client->dev, &dev_attr_in2_min);
device_create_file(&new_client->dev, &dev_attr_in3_input);
device_create_file(&new_client->dev, &dev_attr_in3_max);
device_create_file(&new_client->dev, &dev_attr_in3_min);
device_create_file(&new_client->dev, &dev_attr_in4_input);
device_create_file(&new_client->dev, &dev_attr_in4_max);
device_create_file(&new_client->dev, &dev_attr_in4_min);
device_create_file(&new_client->dev, &dev_attr_in5_input);
device_create_file(&new_client->dev, &dev_attr_in5_max);
device_create_file(&new_client->dev, &dev_attr_in5_min);
device_create_file(&new_client->dev, &dev_attr_in6_input);
device_create_file(&new_client->dev, &dev_attr_in6_max);
device_create_file(&new_client->dev, &dev_attr_in6_min);
device_create_file(&new_client->dev, &dev_attr_in7_input);
device_create_file(&new_client->dev, &dev_attr_in7_max);
device_create_file(&new_client->dev, &dev_attr_in7_min);
device_create_file(&new_client->dev, &dev_attr_in8_input);
device_create_file(&new_client->dev, &dev_attr_in8_max);
device_create_file(&new_client->dev, &dev_attr_in8_min);
device_create_file(&new_client->dev, &dev_attr_in9_input);
device_create_file(&new_client->dev, &dev_attr_in9_max);
device_create_file(&new_client->dev, &dev_attr_in9_min);
device_create_file(&new_client->dev, &dev_attr_in10_input);
device_create_file(&new_client->dev, &dev_attr_in10_max);
device_create_file(&new_client->dev, &dev_attr_in10_min);
device_create_file(&new_client->dev, &dev_attr_in11_input);
device_create_file(&new_client->dev, &dev_attr_in11_max);
device_create_file(&new_client->dev, &dev_attr_in11_min);
device_create_file(&new_client->dev, &dev_attr_in12_input);
device_create_file(&new_client->dev, &dev_attr_in12_max);
device_create_file(&new_client->dev, &dev_attr_in12_min);
device_create_file(&new_client->dev, &dev_attr_in13_input);
device_create_file(&new_client->dev, &dev_attr_in13_max);
device_create_file(&new_client->dev, &dev_attr_in13_min);
device_create_file(&new_client->dev, &dev_attr_in14_input);
device_create_file(&new_client->dev, &dev_attr_in14_max);
device_create_file(&new_client->dev, &dev_attr_in14_min);
device_create_file(&new_client->dev, &dev_attr_in15_input);
device_create_file(&new_client->dev, &dev_attr_in15_max);
device_create_file(&new_client->dev, &dev_attr_in15_min);
device_create_file(&new_client->dev, &dev_attr_in16_input);
device_create_file(&new_client->dev, &dev_attr_in16_max);
device_create_file(&new_client->dev, &dev_attr_in16_min);
device_create_file(&new_client->dev, &dev_attr_fan1_input);
device_create_file(&new_client->dev, &dev_attr_fan1_div);
device_create_file(&new_client->dev, &dev_attr_fan1_min);
device_create_file(&new_client->dev, &dev_attr_fan2_input);
device_create_file(&new_client->dev, &dev_attr_fan2_div);
device_create_file(&new_client->dev, &dev_attr_fan2_min);
device_create_file(&new_client->dev, &dev_attr_fan3_input);
device_create_file(&new_client->dev, &dev_attr_fan3_div);
device_create_file(&new_client->dev, &dev_attr_fan3_min);
device_create_file(&new_client->dev, &dev_attr_fan4_input);
device_create_file(&new_client->dev, &dev_attr_fan4_div);
device_create_file(&new_client->dev, &dev_attr_fan4_min);
device_create_file(&new_client->dev, &dev_attr_fan5_input);
device_create_file(&new_client->dev, &dev_attr_fan5_div);
device_create_file(&new_client->dev, &dev_attr_fan5_min);
device_create_file(&new_client->dev, &dev_attr_fan6_input);
device_create_file(&new_client->dev, &dev_attr_fan6_div);
device_create_file(&new_client->dev, &dev_attr_fan6_min);
device_create_file(&new_client->dev, &dev_attr_fan7_input);
device_create_file(&new_client->dev, &dev_attr_fan7_div);
device_create_file(&new_client->dev, &dev_attr_fan7_min);
device_create_file(&new_client->dev, &dev_attr_fan8_input);
device_create_file(&new_client->dev, &dev_attr_fan8_div);
device_create_file(&new_client->dev, &dev_attr_fan8_min);
device_create_file(&new_client->dev, &dev_attr_temp1_input);
device_create_file(&new_client->dev, &dev_attr_temp1_max);
device_create_file(&new_client->dev, &dev_attr_temp1_min);
device_create_file(&new_client->dev, &dev_attr_temp2_input);
device_create_file(&new_client->dev, &dev_attr_temp2_max);
device_create_file(&new_client->dev, &dev_attr_temp2_min);
device_create_file(&new_client->dev, &dev_attr_temp3_input);
device_create_file(&new_client->dev, &dev_attr_temp3_max);
device_create_file(&new_client->dev, &dev_attr_temp3_min);
device_create_file(&new_client->dev, &dev_attr_temp1_offset);
device_create_file(&new_client->dev, &dev_attr_temp2_offset);
device_create_file(&new_client->dev, &dev_attr_temp3_offset);
device_create_file(&new_client->dev,
&dev_attr_temp1_auto_point1_temp);
device_create_file(&new_client->dev,
&dev_attr_temp2_auto_point1_temp);
device_create_file(&new_client->dev,
&dev_attr_temp3_auto_point1_temp);
device_create_file(&new_client->dev,
&dev_attr_temp1_auto_point1_temp_hyst);
device_create_file(&new_client->dev,
&dev_attr_temp2_auto_point1_temp_hyst);
device_create_file(&new_client->dev,
&dev_attr_temp3_auto_point1_temp_hyst);
device_create_file(&new_client->dev,
&dev_attr_temp1_auto_point2_temp);
device_create_file(&new_client->dev,
&dev_attr_temp2_auto_point2_temp);
device_create_file(&new_client->dev,
&dev_attr_temp3_auto_point2_temp);
device_create_file(&new_client->dev, &dev_attr_temp1_therm);
device_create_file(&new_client->dev, &dev_attr_temp2_therm);
device_create_file(&new_client->dev, &dev_attr_temp3_therm);
device_create_file(&new_client->dev, &dev_attr_vid);
device_create_file(&new_client->dev, &dev_attr_vrm);
device_create_file(&new_client->dev, &dev_attr_alarms);
device_create_file(&new_client->dev, &dev_attr_alarm_mask);
device_create_file(&new_client->dev, &dev_attr_gpio);
device_create_file(&new_client->dev, &dev_attr_gpio_mask);
device_create_file(&new_client->dev, &dev_attr_pwm1);
device_create_file(&new_client->dev, &dev_attr_pwm2);
device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_min);
device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_min);
return 0;
/* Error out and cleanup code */
exitfree:
kfree(new_client);
exit:
return err;
}
static int __init sm_adm1026_init(void)
{
return i2c_add_driver(&adm1026_driver);
}
static void __exit sm_adm1026_exit(void)
{
i2c_del_driver(&adm1026_driver);
}
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Philip Pokorny <ppokorny at penguincomputing.com>, "
"Justin Thiessen <jthiessen at penguincomputing.com>");
MODULE_DESCRIPTION("ADM1026 driver");
module_init(sm_adm1026_init);
module_exit(sm_adm1026_exit);
