| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Corentin Labbe | 1165 | 67.97% | 3 | 20.00% |
| Axel Lin | 420 | 24.50% | 4 | 26.67% |
| Jean Delvare | 95 | 5.54% | 2 | 13.33% |
| Frans Meulenbroeks | 20 | 1.17% | 1 | 6.67% |
| Guenter Roeck | 12 | 0.70% | 3 | 20.00% |
| Tony Jones | 1 | 0.06% | 1 | 6.67% |
| Mark M. Hoffman | 1 | 0.06% | 1 | 6.67% |
| Total | 1714 | 15 |
/* * adm1029.c - Part of lm_sensors, Linux kernel modules for hardware monitoring * * Copyright (C) 2006 Corentin LABBE <clabbe.montjoie@gmail.com> * * Based on LM83 Driver by Jean Delvare <jdelvare@suse.de> * * Give only processor, motherboard temperatures and fan tachs * Very rare chip please let me know if you use it * * http://www.analog.com/UploadedFiles/Data_Sheets/ADM1029.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 version 2 of the License * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/i2c.h> #include <linux/hwmon-sysfs.h> #include <linux/hwmon.h> #include <linux/err.h> #include <linux/mutex.h> /* * Addresses to scan */ static const unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; /* * The ADM1029 registers * Manufacturer ID is 0x41 for Analog Devices */ #define ADM1029_REG_MAN_ID 0x0D #define ADM1029_REG_CHIP_ID 0x0E #define ADM1029_REG_CONFIG 0x01 #define ADM1029_REG_NB_FAN_SUPPORT 0x02 #define ADM1029_REG_TEMP_DEVICES_INSTALLED 0x06 #define ADM1029_REG_LOCAL_TEMP 0xA0 #define ADM1029_REG_REMOTE1_TEMP 0xA1 #define ADM1029_REG_REMOTE2_TEMP 0xA2 #define ADM1029_REG_LOCAL_TEMP_HIGH 0x90 #define ADM1029_REG_REMOTE1_TEMP_HIGH 0x91 #define ADM1029_REG_REMOTE2_TEMP_HIGH 0x92 #define ADM1029_REG_LOCAL_TEMP_LOW 0x98 #define ADM1029_REG_REMOTE1_TEMP_LOW 0x99 #define ADM1029_REG_REMOTE2_TEMP_LOW 0x9A #define ADM1029_REG_FAN1 0x70 #define ADM1029_REG_FAN2 0x71 #define ADM1029_REG_FAN1_MIN 0x78 #define ADM1029_REG_FAN2_MIN 0x79 #define ADM1029_REG_FAN1_CONFIG 0x68 #define ADM1029_REG_FAN2_CONFIG 0x69 #define TEMP_FROM_REG(val) ((val) * 1000) #define DIV_FROM_REG(val) (1 << (((val) >> 6) - 1)) /* Registers to be checked by adm1029_update_device() */ static const u8 ADM1029_REG_TEMP[] = { ADM1029_REG_LOCAL_TEMP, ADM1029_REG_REMOTE1_TEMP, ADM1029_REG_REMOTE2_TEMP, ADM1029_REG_LOCAL_TEMP_HIGH, ADM1029_REG_REMOTE1_TEMP_HIGH, ADM1029_REG_REMOTE2_TEMP_HIGH, ADM1029_REG_LOCAL_TEMP_LOW, ADM1029_REG_REMOTE1_TEMP_LOW, ADM1029_REG_REMOTE2_TEMP_LOW, }; static const u8 ADM1029_REG_FAN[] = { ADM1029_REG_FAN1, ADM1029_REG_FAN2, ADM1029_REG_FAN1_MIN, ADM1029_REG_FAN2_MIN, }; static const u8 ADM1029_REG_FAN_DIV[] = { ADM1029_REG_FAN1_CONFIG, ADM1029_REG_FAN2_CONFIG, }; /* * Client data (each client gets its own) */ struct adm1029_data { struct i2c_client *client; struct mutex update_lock; char valid; /* zero until following fields are valid */ unsigned long last_updated; /* in jiffies */ /* registers values, signed for temperature, unsigned for other stuff */ s8 temp[ARRAY_SIZE(ADM1029_REG_TEMP)]; u8 fan[ARRAY_SIZE(ADM1029_REG_FAN)]; u8 fan_div[ARRAY_SIZE(ADM1029_REG_FAN_DIV)]; }; /* * function that update the status of the chips (temperature for example) */ static struct adm1029_data *adm1029_update_device(struct device *dev) { struct adm1029_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; mutex_lock(&data->update_lock); /* * Use the "cache" Luke, don't recheck values * if there are already checked not a long time later */ if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) { int nr; dev_dbg(&client->dev, "Updating adm1029 data\n"); for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_TEMP); nr++) { data->temp[nr] = i2c_smbus_read_byte_data(client, ADM1029_REG_TEMP[nr]); } for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_FAN); nr++) { data->fan[nr] = i2c_smbus_read_byte_data(client, ADM1029_REG_FAN[nr]); } for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_FAN_DIV); nr++) { data->fan_div[nr] = i2c_smbus_read_byte_data(client, ADM1029_REG_FAN_DIV[nr]); } data->last_updated = jiffies; data->valid = 1; } mutex_unlock(&data->update_lock); return data; } /* * Sysfs stuff */ static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct adm1029_data *data = adm1029_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index])); } static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct adm1029_data *data = adm1029_update_device(dev); u16 val; if (data->fan[attr->index] == 0 || (data->fan_div[attr->index] & 0xC0) == 0 || data->fan[attr->index] == 255) { return sprintf(buf, "0\n"); } val = 1880 * 120 / DIV_FROM_REG(data->fan_div[attr->index]) / data->fan[attr->index]; return sprintf(buf, "%d\n", val); } static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct adm1029_data *data = adm1029_update_device(dev); if ((data->fan_div[attr->index] & 0xC0) == 0) return sprintf(buf, "0\n"); return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[attr->index])); } static ssize_t set_fan_div(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct adm1029_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); u8 reg; long val; int ret = kstrtol(buf, 10, &val); if (ret < 0) return ret; mutex_lock(&data->update_lock); /*Read actual config */ reg = i2c_smbus_read_byte_data(client, ADM1029_REG_FAN_DIV[attr->index]); switch (val) { case 1: val = 1; break; case 2: val = 2; break; case 4: val = 3; break; default: mutex_unlock(&data->update_lock); dev_err(&client->dev, "fan_div value %ld not supported. Choose one of 1, 2 or 4!\n", val); return -EINVAL; } /* Update the value */ reg = (reg & 0x3F) | (val << 6); /* Update the cache */ data->fan_div[attr->index] = reg; /* Write value */ i2c_smbus_write_byte_data(client, ADM1029_REG_FAN_DIV[attr->index], reg); mutex_unlock(&data->update_lock); return count; } /* * Access rights on sysfs. S_IRUGO: Is Readable by User, Group and Others * S_IWUSR: Is Writable by User. */ static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, NULL, 3); static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO, show_temp, NULL, 4); static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO, show_temp, NULL, 5); static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO, show_temp, NULL, 6); static SENSOR_DEVICE_ATTR(temp2_min, S_IRUGO, show_temp, NULL, 7); static SENSOR_DEVICE_ATTR(temp3_min, S_IRUGO, show_temp, NULL, 8); static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO, show_fan, NULL, 2); static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO, show_fan, NULL, 3); static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, show_fan_div, set_fan_div, 0); static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, show_fan_div, set_fan_div, 1); static struct attribute *adm1029_attrs[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_temp1_min.dev_attr.attr, &sensor_dev_attr_temp1_max.dev_attr.attr, &sensor_dev_attr_temp2_input.dev_attr.attr, &sensor_dev_attr_temp2_min.dev_attr.attr, &sensor_dev_attr_temp2_max.dev_attr.attr, &sensor_dev_attr_temp3_input.dev_attr.attr, &sensor_dev_attr_temp3_min.dev_attr.attr, &sensor_dev_attr_temp3_max.dev_attr.attr, &sensor_dev_attr_fan1_input.dev_attr.attr, &sensor_dev_attr_fan2_input.dev_attr.attr, &sensor_dev_attr_fan1_min.dev_attr.attr, &sensor_dev_attr_fan2_min.dev_attr.attr, &sensor_dev_attr_fan1_div.dev_attr.attr, &sensor_dev_attr_fan2_div.dev_attr.attr, NULL }; ATTRIBUTE_GROUPS(adm1029); /* * Real code */ /* Return 0 if detection is successful, -ENODEV otherwise */ static int adm1029_detect(struct i2c_client *client, struct i2c_board_info *info) { struct i2c_adapter *adapter = client->adapter; u8 man_id, chip_id, temp_devices_installed, nb_fan_support; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -ENODEV; /* * ADM1029 doesn't have CHIP ID, check just MAN ID * For better detection we check also ADM1029_TEMP_DEVICES_INSTALLED, * ADM1029_REG_NB_FAN_SUPPORT and compare it with possible values * documented */ man_id = i2c_smbus_read_byte_data(client, ADM1029_REG_MAN_ID); chip_id = i2c_smbus_read_byte_data(client, ADM1029_REG_CHIP_ID); temp_devices_installed = i2c_smbus_read_byte_data(client, ADM1029_REG_TEMP_DEVICES_INSTALLED); nb_fan_support = i2c_smbus_read_byte_data(client, ADM1029_REG_NB_FAN_SUPPORT); /* 0x41 is Analog Devices */ if (man_id != 0x41 || (temp_devices_installed & 0xf9) != 0x01 || nb_fan_support != 0x03) return -ENODEV; if ((chip_id & 0xF0) != 0x00) { /* * There are no "official" CHIP ID, so actually * we use Major/Minor revision for that */ pr_info("Unknown major revision %x, please let us know\n", chip_id); return -ENODEV; } strlcpy(info->type, "adm1029", I2C_NAME_SIZE); return 0; } static int adm1029_init_client(struct i2c_client *client) { u8 config; config = i2c_smbus_read_byte_data(client, ADM1029_REG_CONFIG); if ((config & 0x10) == 0) { i2c_smbus_write_byte_data(client, ADM1029_REG_CONFIG, config | 0x10); } /* recheck config */ config = i2c_smbus_read_byte_data(client, ADM1029_REG_CONFIG); if ((config & 0x10) == 0) { dev_err(&client->dev, "Initialization failed!\n"); return 0; } return 1; } static int adm1029_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; struct adm1029_data *data; struct device *hwmon_dev; data = devm_kzalloc(dev, sizeof(struct adm1029_data), GFP_KERNEL); if (!data) return -ENOMEM; data->client = client; mutex_init(&data->update_lock); /* * Initialize the ADM1029 chip * Check config register */ if (adm1029_init_client(client) == 0) return -ENODEV; hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, data, adm1029_groups); return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id adm1029_id[] = { { "adm1029", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, adm1029_id); static struct i2c_driver adm1029_driver = { .class = I2C_CLASS_HWMON, .driver = { .name = "adm1029", }, .probe = adm1029_probe, .id_table = adm1029_id, .detect = adm1029_detect, .address_list = normal_i2c, }; module_i2c_driver(adm1029_driver); MODULE_AUTHOR("Corentin LABBE <clabbe.montjoie@gmail.com>"); MODULE_DESCRIPTION("adm1029 driver"); MODULE_LICENSE("GPL v2");
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