* Copyright (C) 2007-2008, Advanced Micro Devices, Inc.
* Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>
* Copyright (C) 2008 Hans de Goede <hdegoede@redhat.com>
-
+ * Copyright (C) 2009 Jean Delvare <khali@linux-fr.org>
+ *
* Derived from the lm83 driver by Jean Delvare
*
* This program is free software; you can redistribute it and/or modify
#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
#include <linux/err.h>
/* Indexes for the sysfs hooks */
/* 7475 Common Registers */
-#define REG_VOLTAGE_BASE 0x21
+#define REG_DEVREV2 0x12 /* ADT7490 only */
+
+#define REG_VTT 0x1E /* ADT7490 only */
+#define REG_EXTEND3 0x1F /* ADT7490 only */
+
+#define REG_VOLTAGE_BASE 0x20
#define REG_TEMP_BASE 0x25
#define REG_TACH_BASE 0x28
#define REG_PWM_BASE 0x30
#define REG_DEVID 0x3D
#define REG_VENDID 0x3E
+#define REG_DEVID2 0x3F
#define REG_STATUS1 0x41
#define REG_STATUS2 0x42
-#define REG_VOLTAGE_MIN_BASE 0x46
-#define REG_VOLTAGE_MAX_BASE 0x47
+#define REG_VID 0x43 /* ADT7476 only */
+
+#define REG_VOLTAGE_MIN_BASE 0x44
+#define REG_VOLTAGE_MAX_BASE 0x45
#define REG_TEMP_MIN_BASE 0x4E
#define REG_TEMP_MAX_BASE 0x4F
#define REG_TEMP_OFFSET_BASE 0x70
+#define REG_CONFIG2 0x73
+
#define REG_EXTEND1 0x76
#define REG_EXTEND2 0x77
+
+#define REG_CONFIG3 0x78
#define REG_CONFIG5 0x7C
+#define REG_CONFIG4 0x7D
+
+#define REG_STATUS4 0x81 /* ADT7490 only */
+
+#define REG_VTT_MIN 0x84 /* ADT7490 only */
+#define REG_VTT_MAX 0x86 /* ADT7490 only */
+
+#define VID_VIDSEL 0x80 /* ADT7476 only */
+
+#define CONFIG2_ATTN 0x20
+
+#define CONFIG3_SMBALERT 0x01
+#define CONFIG3_THERM 0x02
+
+#define CONFIG4_PINFUNC 0x03
+#define CONFIG4_MAXDUTY 0x08
+#define CONFIG4_ATTN_IN10 0x30
+#define CONFIG4_ATTN_IN43 0xC0
#define CONFIG5_TWOSCOMP 0x01
#define CONFIG5_TEMPOFFSET 0x02
+#define CONFIG5_VIDGPIO 0x10 /* ADT7476 only */
/* ADT7475 Settings */
-#define ADT7475_VOLTAGE_COUNT 2
+#define ADT7475_VOLTAGE_COUNT 5 /* Not counting Vtt */
#define ADT7475_TEMP_COUNT 3
#define ADT7475_TACH_COUNT 4
#define ADT7475_PWM_COUNT 3
#define TEMP_OFFSET_REG(idx) (REG_TEMP_OFFSET_BASE + (idx))
#define TEMP_TRANGE_REG(idx) (REG_TEMP_TRANGE_BASE + (idx))
-static unsigned short normal_i2c[] = { 0x2e, I2C_CLIENT_END };
+static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
-I2C_CLIENT_INSMOD_1(adt7475);
+enum chips { adt7473, adt7475, adt7476, adt7490 };
static const struct i2c_device_id adt7475_id[] = {
+ { "adt7473", adt7473 },
{ "adt7475", adt7475 },
+ { "adt7476", adt7476 },
+ { "adt7490", adt7490 },
{ }
};
MODULE_DEVICE_TABLE(i2c, adt7475_id);
unsigned long limits_updated;
char valid;
+ u8 config4;
u8 config5;
- u16 alarms;
- u16 voltage[3][3];
+ u8 has_voltage;
+ u8 bypass_attn; /* Bypass voltage attenuator */
+ u8 has_pwm2:1;
+ u8 has_fan4:1;
+ u8 has_vid:1;
+ u32 alarms;
+ u16 voltage[3][6];
u16 temp[7][3];
u16 tach[2][4];
u8 pwm[4][3];
u8 range[3];
u8 pwmctl[3];
u8 pwmchan[3];
+
+ u8 vid;
+ u8 vrm;
};
static struct i2c_driver adt7475_driver;
return SENSORS_LIMIT((90000 * 60) / rpm, 1, 0xFFFF);
}
-static inline int reg2vcc(u16 reg)
-{
- return (4296 * reg) / 1000;
-}
+/* Scaling factors for voltage inputs, taken from the ADT7490 datasheet */
+static const int adt7473_in_scaling[ADT7475_VOLTAGE_COUNT + 1][2] = {
+ { 45, 94 }, /* +2.5V */
+ { 175, 525 }, /* Vccp */
+ { 68, 71 }, /* Vcc */
+ { 93, 47 }, /* +5V */
+ { 120, 20 }, /* +12V */
+ { 45, 45 }, /* Vtt */
+};
-static inline int reg2vccp(u16 reg)
+static inline int reg2volt(int channel, u16 reg, u8 bypass_attn)
{
- return (2929 * reg) / 1000;
-}
+ const int *r = adt7473_in_scaling[channel];
-static inline u16 vcc2reg(long vcc)
-{
- vcc = SENSORS_LIMIT(vcc, 0, 4396);
- return (vcc * 1000) / 4296;
+ if (bypass_attn & (1 << channel))
+ return DIV_ROUND_CLOSEST(reg * 2250, 1024);
+ return DIV_ROUND_CLOSEST(reg * (r[0] + r[1]) * 2250, r[1] * 1024);
}
-static inline u16 vccp2reg(long vcc)
+static inline u16 volt2reg(int channel, long volt, u8 bypass_attn)
{
- vcc = SENSORS_LIMIT(vcc, 0, 2998);
- return (vcc * 1000) / 2929;
+ const int *r = adt7473_in_scaling[channel];
+ long reg;
+
+ if (bypass_attn & (1 << channel))
+ reg = (volt * 1024) / 2250;
+ else
+ reg = (volt * r[1] * 1024) / ((r[0] + r[1]) * 2250);
+ return SENSORS_LIMIT(reg, 0, 1023) & (0xff << 2);
}
static u16 adt7475_read_word(struct i2c_client *client, int reg)
switch (sattr->nr) {
case ALARM:
return sprintf(buf, "%d\n",
- (data->alarms >> (sattr->index + 1)) & 1);
+ (data->alarms >> sattr->index) & 1);
default:
val = data->voltage[sattr->nr][sattr->index];
return sprintf(buf, "%d\n",
- sattr->index ==
- 0 ? reg2vccp(val) : reg2vcc(val));
+ reg2volt(sattr->index, val, data->bypass_attn));
}
}
mutex_lock(&data->lock);
data->voltage[sattr->nr][sattr->index] =
- sattr->index ? vcc2reg(val) : vccp2reg(val);
+ volt2reg(sattr->index, val, data->bypass_attn);
- if (sattr->nr == MIN)
- reg = VOLTAGE_MIN_REG(sattr->index);
- else
- reg = VOLTAGE_MAX_REG(sattr->index);
+ if (sattr->index < ADT7475_VOLTAGE_COUNT) {
+ if (sattr->nr == MIN)
+ reg = VOLTAGE_MIN_REG(sattr->index);
+ else
+ reg = VOLTAGE_MAX_REG(sattr->index);
+ } else {
+ if (sattr->nr == MIN)
+ reg = REG_VTT_MIN;
+ else
+ reg = REG_VTT_MAX;
+ }
i2c_smbus_write_byte_data(client, reg,
data->voltage[sattr->nr][sattr->index] >> 2);
return count;
}
-static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_voltage, NULL, INPUT, 0);
-static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_voltage,
+static ssize_t show_pwm_at_crit(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ struct adt7475_data *data = adt7475_update_device(dev);
+ return sprintf(buf, "%d\n", !!(data->config4 & CONFIG4_MAXDUTY));
+}
+
+static ssize_t set_pwm_at_crit(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adt7475_data *data = i2c_get_clientdata(client);
+ long val;
+
+ if (strict_strtol(buf, 10, &val))
+ return -EINVAL;
+ if (val != 0 && val != 1)
+ return -EINVAL;
+
+ mutex_lock(&data->lock);
+ data->config4 = i2c_smbus_read_byte_data(client, REG_CONFIG4);
+ if (val)
+ data->config4 |= CONFIG4_MAXDUTY;
+ else
+ data->config4 &= ~CONFIG4_MAXDUTY;
+ i2c_smbus_write_byte_data(client, REG_CONFIG4, data->config4);
+ mutex_unlock(&data->lock);
+
+ return count;
+}
+
+static ssize_t show_vrm(struct device *dev, struct device_attribute *devattr,
+ char *buf)
+{
+ struct adt7475_data *data = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", (int)data->vrm);
+}
+
+static ssize_t set_vrm(struct device *dev, struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct adt7475_data *data = dev_get_drvdata(dev);
+ long val;
+
+ if (strict_strtol(buf, 10, &val))
+ return -EINVAL;
+ if (val < 0 || val > 255)
+ return -EINVAL;
+ data->vrm = val;
+
+ return count;
+}
+
+static ssize_t show_vid(struct device *dev, struct device_attribute *devattr,
+ char *buf)
+{
+ struct adt7475_data *data = adt7475_update_device(dev);
+ return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
+}
+
+static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_voltage, NULL, INPUT, 0);
+static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MAX, 0);
-static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_voltage,
+static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MIN, 0);
-static SENSOR_DEVICE_ATTR_2(in1_alarm, S_IRUGO, show_voltage, NULL, ALARM, 0);
-static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_voltage, NULL, INPUT, 1);
-static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_voltage,
+static SENSOR_DEVICE_ATTR_2(in0_alarm, S_IRUGO, show_voltage, NULL, ALARM, 0);
+static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_voltage, NULL, INPUT, 1);
+static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MAX, 1);
-static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_voltage,
+static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_voltage,
set_voltage, MIN, 1);
-static SENSOR_DEVICE_ATTR_2(in2_alarm, S_IRUGO, show_voltage, NULL, ALARM, 1);
+static SENSOR_DEVICE_ATTR_2(in1_alarm, S_IRUGO, show_voltage, NULL, ALARM, 1);
+static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_voltage, NULL, INPUT, 2);
+static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_voltage,
+ set_voltage, MAX, 2);
+static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_voltage,
+ set_voltage, MIN, 2);
+static SENSOR_DEVICE_ATTR_2(in2_alarm, S_IRUGO, show_voltage, NULL, ALARM, 2);
+static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_voltage, NULL, INPUT, 3);
+static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_voltage,
+ set_voltage, MAX, 3);
+static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_voltage,
+ set_voltage, MIN, 3);
+static SENSOR_DEVICE_ATTR_2(in3_alarm, S_IRUGO, show_voltage, NULL, ALARM, 3);
+static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_voltage, NULL, INPUT, 4);
+static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_voltage,
+ set_voltage, MAX, 4);
+static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_voltage,
+ set_voltage, MIN, 4);
+static SENSOR_DEVICE_ATTR_2(in4_alarm, S_IRUGO, show_voltage, NULL, ALARM, 8);
+static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_voltage, NULL, INPUT, 5);
+static SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_voltage,
+ set_voltage, MAX, 5);
+static SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_voltage,
+ set_voltage, MIN, 5);
+static SENSOR_DEVICE_ATTR_2(in5_alarm, S_IRUGO, show_voltage, NULL, ALARM, 31);
static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, INPUT, 0);
static SENSOR_DEVICE_ATTR_2(temp1_alarm, S_IRUGO, show_temp, NULL, ALARM, 0);
static SENSOR_DEVICE_ATTR_2(temp1_fault, S_IRUGO, show_temp, NULL, FAULT, 0);
set_pwmfreq, INPUT, 0);
static SENSOR_DEVICE_ATTR_2(pwm1_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
set_pwmctrl, INPUT, 0);
-static SENSOR_DEVICE_ATTR_2(pwm1_auto_channel_temp, S_IRUGO | S_IWUSR,
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR,
show_pwmchan, set_pwmchan, INPUT, 0);
static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
set_pwm, MIN, 0);
set_pwmfreq, INPUT, 1);
static SENSOR_DEVICE_ATTR_2(pwm2_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
set_pwmctrl, INPUT, 1);
-static SENSOR_DEVICE_ATTR_2(pwm2_auto_channel_temp, S_IRUGO | S_IWUSR,
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR,
show_pwmchan, set_pwmchan, INPUT, 1);
static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
set_pwm, MIN, 1);
set_pwmfreq, INPUT, 2);
static SENSOR_DEVICE_ATTR_2(pwm3_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
set_pwmctrl, INPUT, 2);
-static SENSOR_DEVICE_ATTR_2(pwm3_auto_channel_temp, S_IRUGO | S_IWUSR,
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR,
show_pwmchan, set_pwmchan, INPUT, 2);
static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
set_pwm, MIN, 2);
static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm,
set_pwm, MAX, 2);
+/* Non-standard name, might need revisiting */
+static DEVICE_ATTR(pwm_use_point2_pwm_at_crit, S_IWUSR | S_IRUGO,
+ show_pwm_at_crit, set_pwm_at_crit);
+
+static DEVICE_ATTR(vrm, S_IWUSR | S_IRUGO, show_vrm, set_vrm);
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+
static struct attribute *adt7475_attrs[] = {
&sensor_dev_attr_in1_input.dev_attr.attr,
&sensor_dev_attr_in1_max.dev_attr.attr,
&sensor_dev_attr_fan3_input.dev_attr.attr,
&sensor_dev_attr_fan3_min.dev_attr.attr,
&sensor_dev_attr_fan3_alarm.dev_attr.attr,
- &sensor_dev_attr_fan4_input.dev_attr.attr,
- &sensor_dev_attr_fan4_min.dev_attr.attr,
- &sensor_dev_attr_fan4_alarm.dev_attr.attr,
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm1_freq.dev_attr.attr,
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
- &sensor_dev_attr_pwm1_auto_channel_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
- &sensor_dev_attr_pwm2.dev_attr.attr,
- &sensor_dev_attr_pwm2_freq.dev_attr.attr,
- &sensor_dev_attr_pwm2_enable.dev_attr.attr,
- &sensor_dev_attr_pwm2_auto_channel_temp.dev_attr.attr,
- &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
- &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
&sensor_dev_attr_pwm3.dev_attr.attr,
&sensor_dev_attr_pwm3_freq.dev_attr.attr,
&sensor_dev_attr_pwm3_enable.dev_attr.attr,
- &sensor_dev_attr_pwm3_auto_channel_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
+ &dev_attr_pwm_use_point2_pwm_at_crit.attr,
NULL,
};
-struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
+static struct attribute *fan4_attrs[] = {
+ &sensor_dev_attr_fan4_input.dev_attr.attr,
+ &sensor_dev_attr_fan4_min.dev_attr.attr,
+ &sensor_dev_attr_fan4_alarm.dev_attr.attr,
+ NULL
+};
+
+static struct attribute *pwm2_attrs[] = {
+ &sensor_dev_attr_pwm2.dev_attr.attr,
+ &sensor_dev_attr_pwm2_freq.dev_attr.attr,
+ &sensor_dev_attr_pwm2_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
+ NULL
+};
+
+static struct attribute *in0_attrs[] = {
+ &sensor_dev_attr_in0_input.dev_attr.attr,
+ &sensor_dev_attr_in0_max.dev_attr.attr,
+ &sensor_dev_attr_in0_min.dev_attr.attr,
+ &sensor_dev_attr_in0_alarm.dev_attr.attr,
+ NULL
+};
+
+static struct attribute *in3_attrs[] = {
+ &sensor_dev_attr_in3_input.dev_attr.attr,
+ &sensor_dev_attr_in3_max.dev_attr.attr,
+ &sensor_dev_attr_in3_min.dev_attr.attr,
+ &sensor_dev_attr_in3_alarm.dev_attr.attr,
+ NULL
+};
+
+static struct attribute *in4_attrs[] = {
+ &sensor_dev_attr_in4_input.dev_attr.attr,
+ &sensor_dev_attr_in4_max.dev_attr.attr,
+ &sensor_dev_attr_in4_min.dev_attr.attr,
+ &sensor_dev_attr_in4_alarm.dev_attr.attr,
+ NULL
+};
+
+static struct attribute *in5_attrs[] = {
+ &sensor_dev_attr_in5_input.dev_attr.attr,
+ &sensor_dev_attr_in5_max.dev_attr.attr,
+ &sensor_dev_attr_in5_min.dev_attr.attr,
+ &sensor_dev_attr_in5_alarm.dev_attr.attr,
+ NULL
+};
+
+static struct attribute *vid_attrs[] = {
+ &dev_attr_cpu0_vid.attr,
+ &dev_attr_vrm.attr,
+ NULL
+};
-static int adt7475_detect(struct i2c_client *client, int kind,
+static struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
+static struct attribute_group fan4_attr_group = { .attrs = fan4_attrs };
+static struct attribute_group pwm2_attr_group = { .attrs = pwm2_attrs };
+static struct attribute_group in0_attr_group = { .attrs = in0_attrs };
+static struct attribute_group in3_attr_group = { .attrs = in3_attrs };
+static struct attribute_group in4_attr_group = { .attrs = in4_attrs };
+static struct attribute_group in5_attr_group = { .attrs = in5_attrs };
+static struct attribute_group vid_attr_group = { .attrs = vid_attrs };
+
+static int adt7475_detect(struct i2c_client *client,
struct i2c_board_info *info)
{
struct i2c_adapter *adapter = client->adapter;
+ int vendid, devid, devid2;
+ const char *name;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
- if (kind <= 0) {
- if (adt7475_read(REG_VENDID) != 0x41 ||
- adt7475_read(REG_DEVID) != 0x75) {
- dev_err(&adapter->dev,
- "Couldn't detect a adt7475 part at 0x%02x\n",
- (unsigned int)client->addr);
- return -ENODEV;
- }
+ vendid = adt7475_read(REG_VENDID);
+ devid2 = adt7475_read(REG_DEVID2);
+ if (vendid != 0x41 || /* Analog Devices */
+ (devid2 & 0xf8) != 0x68)
+ return -ENODEV;
+
+ devid = adt7475_read(REG_DEVID);
+ if (devid == 0x73)
+ name = "adt7473";
+ else if (devid == 0x75 && client->addr == 0x2e)
+ name = "adt7475";
+ else if (devid == 0x76)
+ name = "adt7476";
+ else if ((devid2 & 0xfc) == 0x6c)
+ name = "adt7490";
+ else {
+ dev_dbg(&adapter->dev,
+ "Couldn't detect an ADT7473/75/76/90 part at "
+ "0x%02x\n", (unsigned int)client->addr);
+ return -ENODEV;
}
- strlcpy(info->type, adt7475_id[0].name, I2C_NAME_SIZE);
+ strlcpy(info->type, name, I2C_NAME_SIZE);
return 0;
}
+static void adt7475_remove_files(struct i2c_client *client,
+ struct adt7475_data *data)
+{
+ sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group);
+ if (data->has_fan4)
+ sysfs_remove_group(&client->dev.kobj, &fan4_attr_group);
+ if (data->has_pwm2)
+ sysfs_remove_group(&client->dev.kobj, &pwm2_attr_group);
+ if (data->has_voltage & (1 << 0))
+ sysfs_remove_group(&client->dev.kobj, &in0_attr_group);
+ if (data->has_voltage & (1 << 3))
+ sysfs_remove_group(&client->dev.kobj, &in3_attr_group);
+ if (data->has_voltage & (1 << 4))
+ sysfs_remove_group(&client->dev.kobj, &in4_attr_group);
+ if (data->has_voltage & (1 << 5))
+ sysfs_remove_group(&client->dev.kobj, &in5_attr_group);
+ if (data->has_vid)
+ sysfs_remove_group(&client->dev.kobj, &vid_attr_group);
+}
+
static int adt7475_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
+ static const char *names[] = {
+ [adt7473] = "ADT7473",
+ [adt7475] = "ADT7475",
+ [adt7476] = "ADT7476",
+ [adt7490] = "ADT7490",
+ };
+
struct adt7475_data *data;
- int i, ret = 0;
+ int i, ret = 0, revision;
+ u8 config2, config3;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (data == NULL)
mutex_init(&data->lock);
i2c_set_clientdata(client, data);
+ /* Initialize device-specific values */
+ switch (id->driver_data) {
+ case adt7476:
+ data->has_voltage = 0x0e; /* in1 to in3 */
+ revision = adt7475_read(REG_DEVID2) & 0x07;
+ break;
+ case adt7490:
+ data->has_voltage = 0x3e; /* in1 to in5 */
+ revision = adt7475_read(REG_DEVID2) & 0x03;
+ if (revision == 0x03)
+ revision += adt7475_read(REG_DEVREV2);
+ break;
+ default:
+ data->has_voltage = 0x06; /* in1, in2 */
+ revision = adt7475_read(REG_DEVID2) & 0x07;
+ }
+
+ config3 = adt7475_read(REG_CONFIG3);
+ /* Pin PWM2 may alternatively be used for ALERT output */
+ if (!(config3 & CONFIG3_SMBALERT))
+ data->has_pwm2 = 1;
+ /* Meaning of this bit is inverted for the ADT7473-1 */
+ if (id->driver_data == adt7473 && revision >= 1)
+ data->has_pwm2 = !data->has_pwm2;
+
+ data->config4 = adt7475_read(REG_CONFIG4);
+ /* Pin TACH4 may alternatively be used for THERM */
+ if ((data->config4 & CONFIG4_PINFUNC) == 0x0)
+ data->has_fan4 = 1;
+
+ /* THERM configuration is more complex on the ADT7476 and ADT7490,
+ because 2 different pins (TACH4 and +2.5 Vin) can be used for
+ this function */
+ if (id->driver_data == adt7490) {
+ if ((data->config4 & CONFIG4_PINFUNC) == 0x1 &&
+ !(config3 & CONFIG3_THERM))
+ data->has_fan4 = 1;
+ }
+ if (id->driver_data == adt7476 || id->driver_data == adt7490) {
+ if (!(config3 & CONFIG3_THERM) ||
+ (data->config4 & CONFIG4_PINFUNC) == 0x1)
+ data->has_voltage |= (1 << 0); /* in0 */
+ }
+
+ /* On the ADT7476, the +12V input pin may instead be used as VID5,
+ and VID pins may alternatively be used as GPIO */
+ if (id->driver_data == adt7476) {
+ u8 vid = adt7475_read(REG_VID);
+ if (!(vid & VID_VIDSEL))
+ data->has_voltage |= (1 << 4); /* in4 */
+
+ data->has_vid = !(adt7475_read(REG_CONFIG5) & CONFIG5_VIDGPIO);
+ }
+
+ /* Voltage attenuators can be bypassed, globally or individually */
+ config2 = adt7475_read(REG_CONFIG2);
+ if (config2 & CONFIG2_ATTN) {
+ data->bypass_attn = (0x3 << 3) | 0x3;
+ } else {
+ data->bypass_attn = ((data->config4 & CONFIG4_ATTN_IN10) >> 4) |
+ ((data->config4 & CONFIG4_ATTN_IN43) >> 3);
+ }
+ data->bypass_attn &= data->has_voltage;
+
/* Call adt7475_read_pwm for all pwm's as this will reprogram any
pwm's which are disabled to manual mode with 0% duty cycle */
for (i = 0; i < ADT7475_PWM_COUNT; i++)
if (ret)
goto efree;
+ /* Features that can be disabled individually */
+ if (data->has_fan4) {
+ ret = sysfs_create_group(&client->dev.kobj, &fan4_attr_group);
+ if (ret)
+ goto eremove;
+ }
+ if (data->has_pwm2) {
+ ret = sysfs_create_group(&client->dev.kobj, &pwm2_attr_group);
+ if (ret)
+ goto eremove;
+ }
+ if (data->has_voltage & (1 << 0)) {
+ ret = sysfs_create_group(&client->dev.kobj, &in0_attr_group);
+ if (ret)
+ goto eremove;
+ }
+ if (data->has_voltage & (1 << 3)) {
+ ret = sysfs_create_group(&client->dev.kobj, &in3_attr_group);
+ if (ret)
+ goto eremove;
+ }
+ if (data->has_voltage & (1 << 4)) {
+ ret = sysfs_create_group(&client->dev.kobj, &in4_attr_group);
+ if (ret)
+ goto eremove;
+ }
+ if (data->has_voltage & (1 << 5)) {
+ ret = sysfs_create_group(&client->dev.kobj, &in5_attr_group);
+ if (ret)
+ goto eremove;
+ }
+ if (data->has_vid) {
+ data->vrm = vid_which_vrm();
+ ret = sysfs_create_group(&client->dev.kobj, &vid_attr_group);
+ if (ret)
+ goto eremove;
+ }
+
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
ret = PTR_ERR(data->hwmon_dev);
goto eremove;
}
+ dev_info(&client->dev, "%s device, revision %d\n",
+ names[id->driver_data], revision);
+ if ((data->has_voltage & 0x11) || data->has_fan4 || data->has_pwm2)
+ dev_info(&client->dev, "Optional features:%s%s%s%s%s\n",
+ (data->has_voltage & (1 << 0)) ? " in0" : "",
+ (data->has_voltage & (1 << 4)) ? " in4" : "",
+ data->has_fan4 ? " fan4" : "",
+ data->has_pwm2 ? " pwm2" : "",
+ data->has_vid ? " vid" : "");
+ if (data->bypass_attn)
+ dev_info(&client->dev, "Bypassing attenuators on:%s%s%s%s\n",
+ (data->bypass_attn & (1 << 0)) ? " in0" : "",
+ (data->bypass_attn & (1 << 1)) ? " in1" : "",
+ (data->bypass_attn & (1 << 3)) ? " in3" : "",
+ (data->bypass_attn & (1 << 4)) ? " in4" : "");
+
return 0;
eremove:
- sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group);
+ adt7475_remove_files(client, data);
efree:
kfree(data);
return ret;
struct adt7475_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group);
+ adt7475_remove_files(client, data);
kfree(data);
return 0;
.remove = adt7475_remove,
.id_table = adt7475_id,
.detect = adt7475_detect,
- .address_data = &addr_data,
+ .address_list = normal_i2c,
};
static void adt7475_read_hystersis(struct i2c_client *client)
{
struct i2c_client *client = to_i2c_client(dev);
struct adt7475_data *data = i2c_get_clientdata(client);
- u8 ext;
+ u16 ext;
int i;
mutex_lock(&data->lock);
data->alarms = adt7475_read(REG_STATUS2) << 8;
data->alarms |= adt7475_read(REG_STATUS1);
- ext = adt7475_read(REG_EXTEND1);
- for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++)
+ ext = (adt7475_read(REG_EXTEND2) << 8) |
+ adt7475_read(REG_EXTEND1);
+ for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) {
+ if (!(data->has_voltage & (1 << i)))
+ continue;
data->voltage[INPUT][i] =
(adt7475_read(VOLTAGE_REG(i)) << 2) |
- ((ext >> ((i + 1) * 2)) & 3);
+ ((ext >> (i * 2)) & 3);
+ }
- ext = adt7475_read(REG_EXTEND2);
for (i = 0; i < ADT7475_TEMP_COUNT; i++)
data->temp[INPUT][i] =
(adt7475_read(TEMP_REG(i)) << 2) |
- ((ext >> ((i + 1) * 2)) & 3);
+ ((ext >> ((i + 5) * 2)) & 3);
- for (i = 0; i < ADT7475_TACH_COUNT; i++)
+ if (data->has_voltage & (1 << 5)) {
+ data->alarms |= adt7475_read(REG_STATUS4) << 24;
+ ext = adt7475_read(REG_EXTEND3);
+ data->voltage[INPUT][5] = adt7475_read(REG_VTT) << 2 |
+ ((ext >> 4) & 3);
+ }
+
+ for (i = 0; i < ADT7475_TACH_COUNT; i++) {
+ if (i == 3 && !data->has_fan4)
+ continue;
data->tach[INPUT][i] =
adt7475_read_word(client, TACH_REG(i));
+ }
/* Updated by hw when in auto mode */
- for (i = 0; i < ADT7475_PWM_COUNT; i++)
+ for (i = 0; i < ADT7475_PWM_COUNT; i++) {
+ if (i == 1 && !data->has_pwm2)
+ continue;
data->pwm[INPUT][i] = adt7475_read(PWM_REG(i));
+ }
+
+ if (data->has_vid)
+ data->vid = adt7475_read(REG_VID) & 0x3f;
data->measure_updated = jiffies;
}
/* Limits and settings, should never change update every 60 seconds */
- if (time_after(jiffies, data->limits_updated + HZ * 2) ||
+ if (time_after(jiffies, data->limits_updated + HZ * 60) ||
!data->valid) {
+ data->config4 = adt7475_read(REG_CONFIG4);
data->config5 = adt7475_read(REG_CONFIG5);
for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) {
+ if (!(data->has_voltage & (1 << i)))
+ continue;
/* Adjust values so they match the input precision */
data->voltage[MIN][i] =
adt7475_read(VOLTAGE_MIN_REG(i)) << 2;
adt7475_read(VOLTAGE_MAX_REG(i)) << 2;
}
+ if (data->has_voltage & (1 << 5)) {
+ data->voltage[MIN][5] = adt7475_read(REG_VTT_MIN) << 2;
+ data->voltage[MAX][5] = adt7475_read(REG_VTT_MAX) << 2;
+ }
+
for (i = 0; i < ADT7475_TEMP_COUNT; i++) {
/* Adjust values so they match the input precision */
data->temp[MIN][i] =
}
adt7475_read_hystersis(client);
- for (i = 0; i < ADT7475_TACH_COUNT; i++)
+ for (i = 0; i < ADT7475_TACH_COUNT; i++) {
+ if (i == 3 && !data->has_fan4)
+ continue;
data->tach[MIN][i] =
adt7475_read_word(client, TACH_MIN_REG(i));
+ }
for (i = 0; i < ADT7475_PWM_COUNT; i++) {
+ if (i == 1 && !data->has_pwm2)
+ continue;
data->pwm[MAX][i] = adt7475_read(PWM_MAX_REG(i));
data->pwm[MIN][i] = adt7475_read(PWM_MIN_REG(i));
/* Set the channel and control information */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff