diff options
| -rw-r--r-- | Documentation/hwmon/adt7475 | 34 | ||||
| -rw-r--r-- | drivers/hwmon/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/hwmon/adt7475.c | 115 |
3 files changed, 134 insertions, 19 deletions
diff --git a/Documentation/hwmon/adt7475 b/Documentation/hwmon/adt7475 index ebfee5524020..f08f28715b84 100644 --- a/Documentation/hwmon/adt7475 +++ b/Documentation/hwmon/adt7475 @@ -10,24 +10,31 @@ Supported chips: Prefix: 'adt7475' Addresses scanned: I2C 0x2E Datasheet: Publicly available at the On Semiconductors website + * Analog Devices ADT7490 + Prefix: 'adt7490' + Addresses scanned: I2C 0x2C, 0x2D, 0x2E + Datasheet: Publicly available at the On Semiconductors website Authors: Jordan Crouse Hans de Goede Darrick J. Wong (documentation) + Jean Delvare Description ----------- -This driver implements support for the Analog Devices ADT7473 and ADT7475 -chip family. Both chips differ only in minor details. They will be -collectively designed by the name "ADT747x" in the rest of this document. +This driver implements support for the Analog Devices ADT7473, ADT7475 and +ADT7490 chip family. The ADT7473 and ADT7475 differ only in minor details. +The ADT7490 has additional features, including extra voltage measurement +inputs and PECI support. All the supported chips will be collectively +designed by the name "ADT747x" in the rest of this document. The ADT747x uses the 2-wire interface compatible with the SMBus 2.0 specification. Using an analog to digital converter it measures three (3) -temperatures and two (2) voltages. It has four (4) 16-bit counters for -measuring fan speed. There are three (3) PWM outputs that can be used +temperatures and two (2) or more voltages. It has four (4) 16-bit counters +for measuring fan speed. There are three (3) PWM outputs that can be used to control fan speed. A sophisticated control system for the PWM outputs is designed into the @@ -45,6 +52,23 @@ The ADT747x samples all inputs continuously. The driver will not read the registers more often than once every other second. Further, configuration data is only read once per minute. +Chip Differences Summary +------------------------ + +ADT7473: + * 2 voltage inputs + * system acoustics optimizations (not implemented) + +ADT7475: + * 2 voltage inputs + +ADT7490: + * 6 voltage inputs + * 1 Imon input (not implemented) + * PECI support (not implemented) + * 2 GPIO pins (not implemented) + * system acoustics optimizations (not implemented) + Special Features ---------------- diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 5b2eaff47900..f9f4365349b2 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -205,11 +205,11 @@ config SENSORS_ADT7473 will be called adt7473. config SENSORS_ADT7475 - tristate "Analog Devices ADT7473 and ADT7475" + tristate "Analog Devices ADT7473, ADT7475 and ADT7490" depends on I2C && EXPERIMENTAL help If you say yes here you get support for the Analog Devices - ADT7473 and ADT7475 hardware monitoring chips. + ADT7473, ADT7475 and ADT7490 hardware monitoring chips. This driver can also be build as a module. If so, the module will be called adt7475. diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c index 520773b16544..e495665569e5 100644 --- a/drivers/hwmon/adt7475.c +++ b/drivers/hwmon/adt7475.c @@ -3,7 +3,8 @@ * 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 @@ -39,6 +40,9 @@ /* 7475 Common Registers */ +#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 @@ -79,6 +83,11 @@ #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 CONFIG4_MAXDUTY 0x08 #define CONFIG5_TWOSCOMP 0x01 @@ -119,11 +128,12 @@ static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; -I2C_CLIENT_INSMOD_2(adt7473, adt7475); +I2C_CLIENT_INSMOD_3(adt7473, adt7475, adt7490); static const struct i2c_device_id adt7475_id[] = { { "adt7473", adt7473 }, { "adt7475", adt7475 }, + { "adt7490", adt7490 }, { } }; MODULE_DEVICE_TABLE(i2c, adt7475_id); @@ -139,7 +149,7 @@ struct adt7475_data { u8 config4; u8 config5; u8 has_voltage; - u16 alarms; + u32 alarms; u16 voltage[3][6]; u16 temp[7][3]; u16 tach[2][4]; @@ -306,10 +316,17 @@ static ssize_t set_voltage(struct device *dev, struct device_attribute *attr, data->voltage[sattr->nr][sattr->index] = volt2reg(sattr->index, val); - 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); @@ -818,6 +835,12 @@ static ssize_t set_pwm_at_crit(struct device *dev, return count; } +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(in0_min, S_IRUGO | S_IWUSR, show_voltage, + set_voltage, MIN, 0); +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); @@ -830,6 +853,24 @@ static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_voltage, 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); @@ -1009,7 +1050,29 @@ static struct attribute *adt7475_attrs[] = { NULL, }; +/* Attributes specific to the ADT7490 */ +static struct attribute *adt7490_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, + &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, + &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, + &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_group adt7475_attr_group = { .attrs = adt7475_attrs }; +static struct attribute_group adt7490_attr_group = { .attrs = adt7490_attrs }; static int adt7475_detect(struct i2c_client *client, int kind, struct i2c_board_info *info) @@ -1032,9 +1095,11 @@ static int adt7475_detect(struct i2c_client *client, int kind, name = "adt7473"; else if (devid == 0x75 && client->addr == 0x2e) name = "adt7475"; + else if ((devid2 & 0xfc) == 0x6c) + name = "adt7490"; else { dev_dbg(&adapter->dev, - "Couldn't detect an ADT7473 or ADT7475 part at " + "Couldn't detect an ADT7473/75/90 part at " "0x%02x\n", (unsigned int)client->addr); return -ENODEV; } @@ -1059,6 +1124,9 @@ static int adt7475_probe(struct i2c_client *client, /* Initialize device-specific values */ switch (id->driver_data) { + case adt7490: + data->has_voltage = 0x3f; /* in0 to in5 */ + break; default: data->has_voltage = 0x06; /* in1, in2 */ } @@ -1072,6 +1140,13 @@ static int adt7475_probe(struct i2c_client *client, if (ret) goto efree; + if (id->driver_data == adt7490) { + ret = sysfs_create_group(&client->dev.kobj, + &adt7490_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); @@ -1082,6 +1157,8 @@ static int adt7475_probe(struct i2c_client *client, eremove: sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group); + if (data->has_voltage & 0x39) + sysfs_remove_group(&client->dev.kobj, &adt7490_attr_group); efree: kfree(data); return ret; @@ -1093,6 +1170,8 @@ static int adt7475_remove(struct i2c_client *client) hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group); + if (data->has_voltage & 0x39) + sysfs_remove_group(&client->dev.kobj, &adt7490_attr_group); kfree(data); return 0; @@ -1177,7 +1256,7 @@ static struct adt7475_data *adt7475_update_device(struct device *dev) { 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); @@ -1188,7 +1267,8 @@ static struct adt7475_data *adt7475_update_device(struct device *dev) data->alarms = adt7475_read(REG_STATUS2) << 8; data->alarms |= adt7475_read(REG_STATUS1); - ext = adt7475_read(REG_EXTEND1); + 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; @@ -1197,11 +1277,17 @@ static struct adt7475_data *adt7475_update_device(struct device *dev) ((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); + + 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++) data->tach[INPUT][i] = @@ -1230,6 +1316,11 @@ static struct adt7475_data *adt7475_update_device(struct device *dev) 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] = |
