1b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare/* 2b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * emc6w201.c - Hardware monitoring driver for the SMSC EMC6W201 3b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * Copyright (C) 2011 Jean Delvare <khali@linux-fr.org> 4b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * 5b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * This program is free software; you can redistribute it and/or modify 6b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * it under the terms of the GNU General Public License as published by 7b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * the Free Software Foundation; either version 2 of the License, or 8b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * (at your option) any later version. 9b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * 10b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * This program is distributed in the hope that it will be useful, 11b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * but WITHOUT ANY WARRANTY; without even the implied warranty of 12b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * GNU General Public License for more details. 14b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * 15b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * You should have received a copy of the GNU General Public License 16b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * along with this program; if not, write to the Free Software 17b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 18b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare */ 19b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 20b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#include <linux/module.h> 21b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#include <linux/delay.h> 22b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#include <linux/init.h> 23b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#include <linux/slab.h> 24b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#include <linux/jiffies.h> 25b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#include <linux/i2c.h> 26b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#include <linux/hwmon.h> 27b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#include <linux/hwmon-sysfs.h> 28b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#include <linux/err.h> 29b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#include <linux/mutex.h> 30b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 31b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare/* 32b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * Addresses to scan 33b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare */ 34b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 35b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; 36b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 37b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare/* 38b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * The EMC6W201 registers 39b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare */ 40b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 41b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#define EMC6W201_REG_IN(nr) (0x20 + (nr)) 42b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#define EMC6W201_REG_TEMP(nr) (0x26 + (nr)) 43b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#define EMC6W201_REG_FAN(nr) (0x2C + (nr) * 2) 44b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#define EMC6W201_REG_COMPANY 0x3E 45b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#define EMC6W201_REG_VERSTEP 0x3F 46b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#define EMC6W201_REG_CONFIG 0x40 47b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#define EMC6W201_REG_IN_LOW(nr) (0x4A + (nr) * 2) 48b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#define EMC6W201_REG_IN_HIGH(nr) (0x4B + (nr) * 2) 49b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#define EMC6W201_REG_TEMP_LOW(nr) (0x56 + (nr) * 2) 50b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#define EMC6W201_REG_TEMP_HIGH(nr) (0x57 + (nr) * 2) 51b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare#define EMC6W201_REG_FAN_MIN(nr) (0x62 + (nr) * 2) 52b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 53b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvareenum { input, min, max } subfeature; 54b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 55b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare/* 56b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * Per-device data 57b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare */ 58b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 59b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestruct emc6w201_data { 60b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct device *hwmon_dev; 61b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct mutex update_lock; 62b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare char valid; /* zero until following fields are valid */ 63b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare unsigned long last_updated; /* in jiffies */ 64b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 65b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare /* registers values */ 66b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare u8 in[3][6]; 67b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare s8 temp[3][6]; 68b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare u16 fan[2][5]; 69b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare}; 70b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 71b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare/* 72b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * Combine LSB and MSB registers in a single value 73b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * Locking: must be called with data->update_lock held 74b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare */ 75b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic u16 emc6w201_read16(struct i2c_client *client, u8 reg) 76b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare{ 77b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int lsb, msb; 78b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 79b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare lsb = i2c_smbus_read_byte_data(client, reg); 80b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare msb = i2c_smbus_read_byte_data(client, reg + 1); 81b6b2a1e8068684baf67307a994180976b7c443edJean Delvare if (unlikely(lsb < 0 || msb < 0)) { 82b6b2a1e8068684baf67307a994180976b7c443edJean Delvare dev_err(&client->dev, "%d-bit %s failed at 0x%02x\n", 83b6b2a1e8068684baf67307a994180976b7c443edJean Delvare 16, "read", reg); 84b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return 0xFFFF; /* Arbitrary value */ 85b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare } 86b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 87b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return (msb << 8) | lsb; 88b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare} 89b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 90b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare/* 91b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * Write 16-bit value to LSB and MSB registers 92b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * Locking: must be called with data->update_lock held 93b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare */ 94b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic int emc6w201_write16(struct i2c_client *client, u8 reg, u16 val) 95b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare{ 96b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int err; 97b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 98b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare err = i2c_smbus_write_byte_data(client, reg, val & 0xff); 99b6b2a1e8068684baf67307a994180976b7c443edJean Delvare if (likely(!err)) 100b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare err = i2c_smbus_write_byte_data(client, reg + 1, val >> 8); 101b6b2a1e8068684baf67307a994180976b7c443edJean Delvare if (unlikely(err < 0)) 102b6b2a1e8068684baf67307a994180976b7c443edJean Delvare dev_err(&client->dev, "%d-bit %s failed at 0x%02x\n", 103b6b2a1e8068684baf67307a994180976b7c443edJean Delvare 16, "write", reg); 104b6b2a1e8068684baf67307a994180976b7c443edJean Delvare 105b6b2a1e8068684baf67307a994180976b7c443edJean Delvare return err; 106b6b2a1e8068684baf67307a994180976b7c443edJean Delvare} 107b6b2a1e8068684baf67307a994180976b7c443edJean Delvare 108b6b2a1e8068684baf67307a994180976b7c443edJean Delvare/* Read 8-bit value from register */ 109b6b2a1e8068684baf67307a994180976b7c443edJean Delvarestatic u8 emc6w201_read8(struct i2c_client *client, u8 reg) 110b6b2a1e8068684baf67307a994180976b7c443edJean Delvare{ 111b6b2a1e8068684baf67307a994180976b7c443edJean Delvare int val; 112b6b2a1e8068684baf67307a994180976b7c443edJean Delvare 113b6b2a1e8068684baf67307a994180976b7c443edJean Delvare val = i2c_smbus_read_byte_data(client, reg); 114b6b2a1e8068684baf67307a994180976b7c443edJean Delvare if (unlikely(val < 0)) { 115b6b2a1e8068684baf67307a994180976b7c443edJean Delvare dev_err(&client->dev, "%d-bit %s failed at 0x%02x\n", 116b6b2a1e8068684baf67307a994180976b7c443edJean Delvare 8, "read", reg); 117b6b2a1e8068684baf67307a994180976b7c443edJean Delvare return 0x00; /* Arbitrary value */ 118b6b2a1e8068684baf67307a994180976b7c443edJean Delvare } 119b6b2a1e8068684baf67307a994180976b7c443edJean Delvare 120b6b2a1e8068684baf67307a994180976b7c443edJean Delvare return val; 121b6b2a1e8068684baf67307a994180976b7c443edJean Delvare} 122b6b2a1e8068684baf67307a994180976b7c443edJean Delvare 123b6b2a1e8068684baf67307a994180976b7c443edJean Delvare/* Write 8-bit value to register */ 124b6b2a1e8068684baf67307a994180976b7c443edJean Delvarestatic int emc6w201_write8(struct i2c_client *client, u8 reg, u8 val) 125b6b2a1e8068684baf67307a994180976b7c443edJean Delvare{ 126b6b2a1e8068684baf67307a994180976b7c443edJean Delvare int err; 127b6b2a1e8068684baf67307a994180976b7c443edJean Delvare 128b6b2a1e8068684baf67307a994180976b7c443edJean Delvare err = i2c_smbus_write_byte_data(client, reg, val); 129b6b2a1e8068684baf67307a994180976b7c443edJean Delvare if (unlikely(err < 0)) 130b6b2a1e8068684baf67307a994180976b7c443edJean Delvare dev_err(&client->dev, "%d-bit %s failed at 0x%02x\n", 131b6b2a1e8068684baf67307a994180976b7c443edJean Delvare 8, "write", reg); 132b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 133b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return err; 134b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare} 135b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 136b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic struct emc6w201_data *emc6w201_update_device(struct device *dev) 137b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare{ 138b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct i2c_client *client = to_i2c_client(dev); 139b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct emc6w201_data *data = i2c_get_clientdata(client); 140b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int nr; 141b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 142b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare mutex_lock(&data->update_lock); 143b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 144b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { 145b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare for (nr = 0; nr < 6; nr++) { 146b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->in[input][nr] = 147b6b2a1e8068684baf67307a994180976b7c443edJean Delvare emc6w201_read8(client, 148b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare EMC6W201_REG_IN(nr)); 149b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->in[min][nr] = 150b6b2a1e8068684baf67307a994180976b7c443edJean Delvare emc6w201_read8(client, 151b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare EMC6W201_REG_IN_LOW(nr)); 152b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->in[max][nr] = 153b6b2a1e8068684baf67307a994180976b7c443edJean Delvare emc6w201_read8(client, 154b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare EMC6W201_REG_IN_HIGH(nr)); 155b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare } 156b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 157b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare for (nr = 0; nr < 6; nr++) { 158b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->temp[input][nr] = 159b6b2a1e8068684baf67307a994180976b7c443edJean Delvare emc6w201_read8(client, 160b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare EMC6W201_REG_TEMP(nr)); 161b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->temp[min][nr] = 162b6b2a1e8068684baf67307a994180976b7c443edJean Delvare emc6w201_read8(client, 163b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare EMC6W201_REG_TEMP_LOW(nr)); 164b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->temp[max][nr] = 165b6b2a1e8068684baf67307a994180976b7c443edJean Delvare emc6w201_read8(client, 166b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare EMC6W201_REG_TEMP_HIGH(nr)); 167b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare } 168b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 169b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare for (nr = 0; nr < 5; nr++) { 170b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->fan[input][nr] = 171b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare emc6w201_read16(client, 172b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare EMC6W201_REG_FAN(nr)); 173b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->fan[min][nr] = 174b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare emc6w201_read16(client, 175b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare EMC6W201_REG_FAN_MIN(nr)); 176b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare } 177b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 178b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->last_updated = jiffies; 179b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->valid = 1; 180b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare } 181b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 182b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare mutex_unlock(&data->update_lock); 183b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 184b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return data; 185b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare} 186b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 187b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare/* 188b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * Sysfs callback functions 189b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare */ 190b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 191b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic const u16 nominal_mv[6] = { 2500, 1500, 3300, 5000, 1500, 1500 }; 192b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 193b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic ssize_t show_in(struct device *dev, struct device_attribute *devattr, 194b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare char *buf) 195b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare{ 196b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct emc6w201_data *data = emc6w201_update_device(dev); 197b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int sf = to_sensor_dev_attr_2(devattr)->index; 198b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int nr = to_sensor_dev_attr_2(devattr)->nr; 199b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 200b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return sprintf(buf, "%u\n", 201b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare (unsigned)data->in[sf][nr] * nominal_mv[nr] / 0xC0); 202b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare} 203b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 204b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic ssize_t set_in(struct device *dev, struct device_attribute *devattr, 205b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare const char *buf, size_t count) 206b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare{ 207b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct i2c_client *client = to_i2c_client(dev); 208b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct emc6w201_data *data = i2c_get_clientdata(client); 209b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int sf = to_sensor_dev_attr_2(devattr)->index; 210b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int nr = to_sensor_dev_attr_2(devattr)->nr; 211b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int err; 212b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare long val; 213b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare u8 reg; 214b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 215179c4fdb565dd2157e5dfe89318b74868e3b523dFrans Meulenbroeks err = kstrtol(buf, 10, &val); 216b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare if (err < 0) 217b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return err; 218b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 219b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare val = DIV_ROUND_CLOSEST(val * 0xC0, nominal_mv[nr]); 220b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare reg = (sf == min) ? EMC6W201_REG_IN_LOW(nr) 221b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare : EMC6W201_REG_IN_HIGH(nr); 222b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 223b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare mutex_lock(&data->update_lock); 224b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->in[sf][nr] = SENSORS_LIMIT(val, 0, 255); 225b6b2a1e8068684baf67307a994180976b7c443edJean Delvare err = emc6w201_write8(client, reg, data->in[sf][nr]); 226b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare mutex_unlock(&data->update_lock); 227b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 228b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return err < 0 ? err : count; 229b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare} 230b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 231b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic ssize_t show_temp(struct device *dev, struct device_attribute *devattr, 232b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare char *buf) 233b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare{ 234b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct emc6w201_data *data = emc6w201_update_device(dev); 235b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int sf = to_sensor_dev_attr_2(devattr)->index; 236b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int nr = to_sensor_dev_attr_2(devattr)->nr; 237b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 238b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return sprintf(buf, "%d\n", (int)data->temp[sf][nr] * 1000); 239b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare} 240b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 241b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic ssize_t set_temp(struct device *dev, struct device_attribute *devattr, 242b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare const char *buf, size_t count) 243b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare{ 244b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct i2c_client *client = to_i2c_client(dev); 245b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct emc6w201_data *data = i2c_get_clientdata(client); 246b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int sf = to_sensor_dev_attr_2(devattr)->index; 247b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int nr = to_sensor_dev_attr_2(devattr)->nr; 248b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int err; 249b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare long val; 250b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare u8 reg; 251b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 252179c4fdb565dd2157e5dfe89318b74868e3b523dFrans Meulenbroeks err = kstrtol(buf, 10, &val); 253b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare if (err < 0) 254b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return err; 255b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 256b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare val /= 1000; 257b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare reg = (sf == min) ? EMC6W201_REG_TEMP_LOW(nr) 258b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare : EMC6W201_REG_TEMP_HIGH(nr); 259b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 260b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare mutex_lock(&data->update_lock); 261b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->temp[sf][nr] = SENSORS_LIMIT(val, -127, 128); 262b6b2a1e8068684baf67307a994180976b7c443edJean Delvare err = emc6w201_write8(client, reg, data->temp[sf][nr]); 263b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare mutex_unlock(&data->update_lock); 264b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 265b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return err < 0 ? err : count; 266b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare} 267b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 268b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic ssize_t show_fan(struct device *dev, struct device_attribute *devattr, 269b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare char *buf) 270b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare{ 271b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct emc6w201_data *data = emc6w201_update_device(dev); 272b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int sf = to_sensor_dev_attr_2(devattr)->index; 273b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int nr = to_sensor_dev_attr_2(devattr)->nr; 274b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare unsigned rpm; 275b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 276b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare if (data->fan[sf][nr] == 0 || data->fan[sf][nr] == 0xFFFF) 277b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare rpm = 0; 278b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare else 279b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare rpm = 5400000U / data->fan[sf][nr]; 280b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 281b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return sprintf(buf, "%u\n", rpm); 282b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare} 283b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 284b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic ssize_t set_fan(struct device *dev, struct device_attribute *devattr, 285b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare const char *buf, size_t count) 286b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare{ 287b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct i2c_client *client = to_i2c_client(dev); 288b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct emc6w201_data *data = i2c_get_clientdata(client); 289b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int sf = to_sensor_dev_attr_2(devattr)->index; 290b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int nr = to_sensor_dev_attr_2(devattr)->nr; 291b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int err; 292b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare unsigned long val; 293b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 294179c4fdb565dd2157e5dfe89318b74868e3b523dFrans Meulenbroeks err = kstrtoul(buf, 10, &val); 295b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare if (err < 0) 296b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return err; 297b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 298b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare if (val == 0) { 299b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare val = 0xFFFF; 300b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare } else { 301b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare val = DIV_ROUND_CLOSEST(5400000U, val); 302b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare val = SENSORS_LIMIT(val, 0, 0xFFFE); 303b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare } 304b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 305b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare mutex_lock(&data->update_lock); 306b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->fan[sf][nr] = val; 307b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare err = emc6w201_write16(client, EMC6W201_REG_FAN_MIN(nr), 308b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->fan[sf][nr]); 309b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare mutex_unlock(&data->update_lock); 310b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 311b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return err < 0 ? err : count; 312b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare} 313b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 314b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, input); 315b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_in, set_in, 316b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 0, min); 317b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_in, set_in, 318b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 0, max); 319b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 1, input); 320b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_in, set_in, 321b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 1, min); 322b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_in, set_in, 323b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 1, max); 324b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 2, input); 325b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_in, set_in, 326b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 2, min); 327b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_in, set_in, 328b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 2, max); 329b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in, NULL, 3, input); 330b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_in, set_in, 331b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 3, min); 332b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_in, set_in, 333b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 3, max); 334b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in, NULL, 4, input); 335b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_in, set_in, 336b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 4, min); 337b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_in, set_in, 338b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 4, max); 339b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in, NULL, 5, input); 340b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_in, set_in, 341b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 5, min); 342b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_in, set_in, 343b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 5, max); 344b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 345b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, input); 346b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp, 347b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 0, min); 348b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp, 349b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 0, max); 350b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, input); 351b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp, 352b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 1, min); 353b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp, 354b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 1, max); 355b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, input); 356b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp, 357b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 2, min); 358b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp, 359b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 2, max); 360b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 3, input); 361b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp4_min, S_IRUGO | S_IWUSR, show_temp, set_temp, 362b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 3, min); 363b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp4_max, S_IRUGO | S_IWUSR, show_temp, set_temp, 364b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 3, max); 365b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp5_input, S_IRUGO, show_temp, NULL, 4, input); 366b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp5_min, S_IRUGO | S_IWUSR, show_temp, set_temp, 367b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 4, min); 368b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp5_max, S_IRUGO | S_IWUSR, show_temp, set_temp, 369b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 4, max); 370b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp6_input, S_IRUGO, show_temp, NULL, 5, input); 371b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp6_min, S_IRUGO | S_IWUSR, show_temp, set_temp, 372b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 5, min); 373b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(temp6_max, S_IRUGO | S_IWUSR, show_temp, set_temp, 374b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 5, max); 375b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 376b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_fan, NULL, 0, input); 377b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_fan, set_fan, 378b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 0, min); 379b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_fan, NULL, 1, input); 380b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_fan, set_fan, 381b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 1, min); 382b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_fan, NULL, 2, input); 383b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_fan, set_fan, 384b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 2, min); 385b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 3, input); 386b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_fan, set_fan, 387b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 3, min); 388b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(fan5_input, S_IRUGO, show_fan, NULL, 4, input); 389b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic SENSOR_DEVICE_ATTR_2(fan5_min, S_IRUGO | S_IWUSR, show_fan, set_fan, 390b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 4, min); 391b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 392b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic struct attribute *emc6w201_attributes[] = { 393b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in0_input.dev_attr.attr, 394b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in0_min.dev_attr.attr, 395b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in0_max.dev_attr.attr, 396b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in1_input.dev_attr.attr, 397b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in1_min.dev_attr.attr, 398b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in1_max.dev_attr.attr, 399b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in2_input.dev_attr.attr, 400b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in2_min.dev_attr.attr, 401b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in2_max.dev_attr.attr, 402b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in3_input.dev_attr.attr, 403b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in3_min.dev_attr.attr, 404b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in3_max.dev_attr.attr, 405b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in4_input.dev_attr.attr, 406b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in4_min.dev_attr.attr, 407b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in4_max.dev_attr.attr, 408b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in5_input.dev_attr.attr, 409b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in5_min.dev_attr.attr, 410b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_in5_max.dev_attr.attr, 411b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 412b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp1_input.dev_attr.attr, 413b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp1_min.dev_attr.attr, 414b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp1_max.dev_attr.attr, 415b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp2_input.dev_attr.attr, 416b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp2_min.dev_attr.attr, 417b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp2_max.dev_attr.attr, 418b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp3_input.dev_attr.attr, 419b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp3_min.dev_attr.attr, 420b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp3_max.dev_attr.attr, 421b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp4_input.dev_attr.attr, 422b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp4_min.dev_attr.attr, 423b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp4_max.dev_attr.attr, 424b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp5_input.dev_attr.attr, 425b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp5_min.dev_attr.attr, 426b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp5_max.dev_attr.attr, 427b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp6_input.dev_attr.attr, 428b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp6_min.dev_attr.attr, 429b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_temp6_max.dev_attr.attr, 430b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 431b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_fan1_input.dev_attr.attr, 432b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_fan1_min.dev_attr.attr, 433b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_fan2_input.dev_attr.attr, 434b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_fan2_min.dev_attr.attr, 435b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_fan3_input.dev_attr.attr, 436b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_fan3_min.dev_attr.attr, 437b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_fan4_input.dev_attr.attr, 438b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_fan4_min.dev_attr.attr, 439b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_fan5_input.dev_attr.attr, 440b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare &sensor_dev_attr_fan5_min.dev_attr.attr, 441b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare NULL 442b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare}; 443b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 444b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic const struct attribute_group emc6w201_group = { 445b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare .attrs = emc6w201_attributes, 446b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare}; 447b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 448b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare/* 449b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare * Driver interface 450b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare */ 451b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 452b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare/* Return 0 if detection is successful, -ENODEV otherwise */ 453b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic int emc6w201_detect(struct i2c_client *client, 454b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct i2c_board_info *info) 455b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare{ 456b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct i2c_adapter *adapter = client->adapter; 457b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int company, verstep, config; 458b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 459b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 460b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return -ENODEV; 461b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 462b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare /* Identification */ 463b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare company = i2c_smbus_read_byte_data(client, EMC6W201_REG_COMPANY); 464b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare if (company != 0x5C) 465b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return -ENODEV; 466b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare verstep = i2c_smbus_read_byte_data(client, EMC6W201_REG_VERSTEP); 467b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare if (verstep < 0 || (verstep & 0xF0) != 0xB0) 468b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return -ENODEV; 469b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare if ((verstep & 0x0F) > 2) { 470b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare dev_dbg(&client->dev, "Unknwown EMC6W201 stepping %d\n", 471b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare verstep & 0x0F); 472b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return -ENODEV; 473b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare } 474b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 475b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare /* Check configuration */ 476b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare config = i2c_smbus_read_byte_data(client, EMC6W201_REG_CONFIG); 477b6b2a1e8068684baf67307a994180976b7c443edJean Delvare if (config < 0 || (config & 0xF4) != 0x04) 478b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return -ENODEV; 479b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare if (!(config & 0x01)) { 480b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare dev_err(&client->dev, "Monitoring not enabled\n"); 481b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return -ENODEV; 482b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare } 483b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 484b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare strlcpy(info->type, "emc6w201", I2C_NAME_SIZE); 485b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 486b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return 0; 487b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare} 488b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 489b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic int emc6w201_probe(struct i2c_client *client, 490b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare const struct i2c_device_id *id) 491b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare{ 492b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct emc6w201_data *data; 493b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare int err; 494b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 495b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data = kzalloc(sizeof(struct emc6w201_data), GFP_KERNEL); 496b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare if (!data) { 497b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare err = -ENOMEM; 498b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare goto exit; 499b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare } 500b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 501b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare i2c_set_clientdata(client, data); 502b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare mutex_init(&data->update_lock); 503b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 504b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare /* Create sysfs attribute */ 505b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare err = sysfs_create_group(&client->dev.kobj, &emc6w201_group); 506b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare if (err) 507b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare goto exit_free; 508b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 509b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare /* Expose as a hwmon device */ 510b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare data->hwmon_dev = hwmon_device_register(&client->dev); 511b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare if (IS_ERR(data->hwmon_dev)) { 512b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare err = PTR_ERR(data->hwmon_dev); 513b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare goto exit_remove; 514b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare } 515b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 516b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return 0; 517b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 518b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare exit_remove: 519b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare sysfs_remove_group(&client->dev.kobj, &emc6w201_group); 520b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare exit_free: 521b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare kfree(data); 522b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare exit: 523b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return err; 524b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare} 525b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 526b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic int emc6w201_remove(struct i2c_client *client) 527b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare{ 528b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare struct emc6w201_data *data = i2c_get_clientdata(client); 529b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 530b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare hwmon_device_unregister(data->hwmon_dev); 531b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare sysfs_remove_group(&client->dev.kobj, &emc6w201_group); 532b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare kfree(data); 533b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 534b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare return 0; 535b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare} 536b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 537b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic const struct i2c_device_id emc6w201_id[] = { 538b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare { "emc6w201", 0 }, 539b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare { } 540b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare}; 541b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean DelvareMODULE_DEVICE_TABLE(i2c, emc6w201_id); 542b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 543b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvarestatic struct i2c_driver emc6w201_driver = { 544b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare .class = I2C_CLASS_HWMON, 545b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare .driver = { 546b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare .name = "emc6w201", 547b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare }, 548b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare .probe = emc6w201_probe, 549b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare .remove = emc6w201_remove, 550b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare .id_table = emc6w201_id, 551b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare .detect = emc6w201_detect, 552b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare .address_list = normal_i2c, 553b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare}; 554b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 555f0967eea80ec2a19a4fe1ad27e3ff1b22c79a3c7Axel Linmodule_i2c_driver(emc6w201_driver); 556b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean Delvare 557b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean DelvareMODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>"); 558b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean DelvareMODULE_DESCRIPTION("SMSC EMC6W201 hardware monitoring driver"); 559b0b349a85d3df00a40a8bd398e4a151fd8e91bbeJean DelvareMODULE_LICENSE("GPL"); 560