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drivers/hwmon/asb100.c
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// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* asb100.c - Part of lm_sensors, Linux kernel modules for hardware * monitoring * * Copyright (C) 2004 Mark M. Hoffman <mhoffman@lightlink.com> * * (derived from w83781d.c) * * Copyright (C) 1998 - 2003 Frodo Looijaard <frodol@dds.nl>, * Philip Edelbrock <phil@netroedge.com>, and * Mark Studebaker <mdsxyz123@yahoo.com> |
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*/ |
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/* |
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* This driver supports the hardware sensor chips: Asus ASB100 and * ASB100-A "BACH". * * ASB100-A supports pwm1, while plain ASB100 does not. There is no known * way for the driver to tell which one is there. * |
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* Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA |
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* asb100 7 3 1 4 0x31 0x0694 yes no */ |
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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#include <linux/module.h> #include <linux/slab.h> #include <linux/i2c.h> |
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#include <linux/hwmon.h> |
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#include <linux/hwmon-sysfs.h> |
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#include <linux/hwmon-vid.h> |
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#include <linux/err.h> |
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#include <linux/init.h> |
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#include <linux/jiffies.h> |
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#include <linux/mutex.h> |
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#include "lm75.h" |
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/* I2C addresses to scan */ |
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static const unsigned short normal_i2c[] = { 0x2d, I2C_CLIENT_END }; |
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static unsigned short force_subclients[4]; module_param_array(force_subclients, short, NULL, 0); |
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MODULE_PARM_DESC(force_subclients, "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}"); |
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/* Voltage IN registers 0-6 */ #define ASB100_REG_IN(nr) (0x20 + (nr)) #define ASB100_REG_IN_MAX(nr) (0x2b + (nr * 2)) #define ASB100_REG_IN_MIN(nr) (0x2c + (nr * 2)) /* FAN IN registers 1-3 */ #define ASB100_REG_FAN(nr) (0x28 + (nr)) #define ASB100_REG_FAN_MIN(nr) (0x3b + (nr)) /* TEMPERATURE registers 1-4 */ static const u16 asb100_reg_temp[] = {0, 0x27, 0x150, 0x250, 0x17}; static const u16 asb100_reg_temp_max[] = {0, 0x39, 0x155, 0x255, 0x18}; static const u16 asb100_reg_temp_hyst[] = {0, 0x3a, 0x153, 0x253, 0x19}; #define ASB100_REG_TEMP(nr) (asb100_reg_temp[nr]) #define ASB100_REG_TEMP_MAX(nr) (asb100_reg_temp_max[nr]) #define ASB100_REG_TEMP_HYST(nr) (asb100_reg_temp_hyst[nr]) #define ASB100_REG_TEMP2_CONFIG 0x0152 #define ASB100_REG_TEMP3_CONFIG 0x0252 #define ASB100_REG_CONFIG 0x40 #define ASB100_REG_ALARM1 0x41 #define ASB100_REG_ALARM2 0x42 #define ASB100_REG_SMIM1 0x43 #define ASB100_REG_SMIM2 0x44 #define ASB100_REG_VID_FANDIV 0x47 #define ASB100_REG_I2C_ADDR 0x48 #define ASB100_REG_CHIPID 0x49 #define ASB100_REG_I2C_SUBADDR 0x4a #define ASB100_REG_PIN 0x4b #define ASB100_REG_IRQ 0x4c #define ASB100_REG_BANK 0x4e #define ASB100_REG_CHIPMAN 0x4f #define ASB100_REG_WCHIPID 0x58 /* bit 7 -> enable, bits 0-3 -> duty cycle */ #define ASB100_REG_PWM1 0x59 |
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/* * CONVERSIONS * Rounding and limit checking is only done on the TO_REG variants. */ |
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/* These constants are a guess, consistent w/ w83781d */ |
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#define ASB100_IN_MIN 0 #define ASB100_IN_MAX 4080 |
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/* * IN: 1/1000 V (0V to 4.08V) * REG: 16mV/bit */ |
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static u8 IN_TO_REG(unsigned val) { |
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unsigned nval = clamp_val(val, ASB100_IN_MIN, ASB100_IN_MAX); |
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return (nval + 8) / 16; } static unsigned IN_FROM_REG(u8 reg) { return reg * 16; } static u8 FAN_TO_REG(long rpm, int div) { if (rpm == -1) return 0; if (rpm == 0) return 255; |
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rpm = clamp_val(rpm, 1, 1000000); return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254); |
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} static int FAN_FROM_REG(u8 val, int div) { |
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return val == 0 ? -1 : val == 255 ? 0 : 1350000 / (val * div); |
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} /* These constants are a guess, consistent w/ w83781d */ |
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#define ASB100_TEMP_MIN -128000 #define ASB100_TEMP_MAX 127000 |
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/* * TEMP: 0.001C/bit (-128C to +127C) * REG: 1C/bit, two's complement */ |
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static u8 TEMP_TO_REG(long temp) |
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{ |
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int ntemp = clamp_val(temp, ASB100_TEMP_MIN, ASB100_TEMP_MAX); |
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ntemp += (ntemp < 0 ? -500 : 500); |
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return (u8)(ntemp / 1000); } static int TEMP_FROM_REG(u8 reg) { return (s8)reg * 1000; } |
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/* * PWM: 0 - 255 per sensors documentation * REG: (6.25% duty cycle per bit) */ |
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static u8 ASB100_PWM_TO_REG(int pwm) { |
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pwm = clamp_val(pwm, 0, 255); |
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return (u8)(pwm / 16); } static int ASB100_PWM_FROM_REG(u8 reg) { return reg * 16; } |
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#define DIV_FROM_REG(val) (1 << (val)) |
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/* * FAN DIV: 1, 2, 4, or 8 (defaults to 2) * REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */ |
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static u8 DIV_TO_REG(long val) { |
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return val == 8 ? 3 : val == 4 ? 2 : val == 1 ? 0 : 1; |
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} |
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/* * For each registered client, we need to keep some data in memory. That * data is pointed to by client->data. The structure itself is * dynamically allocated, at the same time the client itself is allocated. */ |
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struct asb100_data { |
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struct device *hwmon_dev; |
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struct mutex lock; |
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struct mutex update_lock; |
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unsigned long last_updated; /* In jiffies */ /* array of 2 pointers to subclients */ struct i2c_client *lm75[2]; char valid; /* !=0 if following fields are valid */ u8 in[7]; /* Register value */ u8 in_max[7]; /* Register value */ u8 in_min[7]; /* Register value */ u8 fan[3]; /* Register value */ u8 fan_min[3]; /* Register value */ u16 temp[4]; /* Register value (0 and 3 are u8 only) */ u16 temp_max[4]; /* Register value (0 and 3 are u8 only) */ u16 temp_hyst[4]; /* Register value (0 and 3 are u8 only) */ u8 fan_div[3]; /* Register encoding, right justified */ u8 pwm; /* Register encoding */ u8 vid; /* Register encoding, combined */ u32 alarms; /* Register encoding, combined */ u8 vrm; }; static int asb100_read_value(struct i2c_client *client, u16 reg); static void asb100_write_value(struct i2c_client *client, u16 reg, u16 val); |
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static int asb100_probe(struct i2c_client *client); |
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static int asb100_detect(struct i2c_client *client, |
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struct i2c_board_info *info); static int asb100_remove(struct i2c_client *client); |
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static struct asb100_data *asb100_update_device(struct device *dev); static void asb100_init_client(struct i2c_client *client); |
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static const struct i2c_device_id asb100_id[] = { |
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{ "asb100", 0 }, |
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{ } }; MODULE_DEVICE_TABLE(i2c, asb100_id); |
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static struct i2c_driver asb100_driver = { |
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.class = I2C_CLASS_HWMON, |
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.driver = { |
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.name = "asb100", }, |
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.probe_new = asb100_probe, |
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.remove = asb100_remove, .id_table = asb100_id, .detect = asb100_detect, |
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.address_list = normal_i2c, |
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}; /* 7 Voltages */ #define show_in_reg(reg) \ |
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static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ char *buf) \ |
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{ \ |
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int nr = to_sensor_dev_attr(attr)->index; \ |
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struct asb100_data *data = asb100_update_device(dev); \ return sprintf(buf, "%d ", IN_FROM_REG(data->reg[nr])); \ } show_in_reg(in) show_in_reg(in_min) show_in_reg(in_max) #define set_in_reg(REG, reg) \ |
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static ssize_t set_in_##reg(struct device *dev, struct device_attribute *attr, \ const char *buf, size_t count) \ |
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{ \ |
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int nr = to_sensor_dev_attr(attr)->index; \ |
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struct i2c_client *client = to_i2c_client(dev); \ struct asb100_data *data = i2c_get_clientdata(client); \ |
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unsigned long val; \ int err = kstrtoul(buf, 10, &val); \ if (err) \ return err; \ |
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mutex_lock(&data->update_lock); \ |
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data->in_##reg[nr] = IN_TO_REG(val); \ asb100_write_value(client, ASB100_REG_IN_##REG(nr), \ data->in_##reg[nr]); \ |
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mutex_unlock(&data->update_lock); \ |
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return count; \ } set_in_reg(MIN, min) set_in_reg(MAX, max) #define sysfs_in(offset) \ |
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static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ show_in, NULL, offset); \ static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ show_in_min, set_in_min, offset); \ static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ show_in_max, set_in_max, offset) |
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sysfs_in(0); sysfs_in(1); sysfs_in(2); sysfs_in(3); sysfs_in(4); sysfs_in(5); sysfs_in(6); |
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/* 3 Fans */ |
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static ssize_t show_fan(struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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int nr = to_sensor_dev_attr(attr)->index; |
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struct asb100_data *data = asb100_update_device(dev); return sprintf(buf, "%d ", FAN_FROM_REG(data->fan[nr], DIV_FROM_REG(data->fan_div[nr]))); } |
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static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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int nr = to_sensor_dev_attr(attr)->index; |
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struct asb100_data *data = asb100_update_device(dev); return sprintf(buf, "%d ", FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]))); } |
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static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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int nr = to_sensor_dev_attr(attr)->index; |
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struct asb100_data *data = asb100_update_device(dev); return sprintf(buf, "%d ", DIV_FROM_REG(data->fan_div[nr])); } |
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static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ |
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int nr = to_sensor_dev_attr(attr)->index; |
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struct i2c_client *client = to_i2c_client(dev); struct asb100_data *data = i2c_get_clientdata(client); |
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unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; |
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mutex_lock(&data->update_lock); |
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data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); asb100_write_value(client, ASB100_REG_FAN_MIN(nr), data->fan_min[nr]); |
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mutex_unlock(&data->update_lock); |
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return count; } |
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/* * Note: we save and restore the fan minimum here, because its value is * determined in part by the fan divisor. This follows the principle of * least surprise; the user doesn't expect the fan minimum to change just * because the divisor changed. */ |
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static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ |
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int nr = to_sensor_dev_attr(attr)->index; |
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struct i2c_client *client = to_i2c_client(dev); struct asb100_data *data = i2c_get_clientdata(client); unsigned long min; |
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int reg; |
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unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; |
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mutex_lock(&data->update_lock); |
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min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])); data->fan_div[nr] = DIV_TO_REG(val); |
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switch (nr) { |
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case 0: /* fan 1 */ reg = asb100_read_value(client, ASB100_REG_VID_FANDIV); reg = (reg & 0xcf) | (data->fan_div[0] << 4); asb100_write_value(client, ASB100_REG_VID_FANDIV, reg); break; case 1: /* fan 2 */ reg = asb100_read_value(client, ASB100_REG_VID_FANDIV); reg = (reg & 0x3f) | (data->fan_div[1] << 6); asb100_write_value(client, ASB100_REG_VID_FANDIV, reg); break; case 2: /* fan 3 */ reg = asb100_read_value(client, ASB100_REG_PIN); reg = (reg & 0x3f) | (data->fan_div[2] << 6); asb100_write_value(client, ASB100_REG_PIN, reg); break; } data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); asb100_write_value(client, ASB100_REG_FAN_MIN(nr), data->fan_min[nr]); |
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mutex_unlock(&data->update_lock); |
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return count; } #define sysfs_fan(offset) \ |
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static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ show_fan, NULL, offset - 1); \ static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ show_fan_min, set_fan_min, offset - 1); \ static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ show_fan_div, set_fan_div, offset - 1) |
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sysfs_fan(1); sysfs_fan(2); sysfs_fan(3); |
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/* 4 Temp. Sensors */ static int sprintf_temp_from_reg(u16 reg, char *buf, int nr) { int ret = 0; switch (nr) { case 1: case 2: ret = sprintf(buf, "%d ", LM75_TEMP_FROM_REG(reg)); break; case 0: case 3: default: ret = sprintf(buf, "%d ", TEMP_FROM_REG(reg)); break; } return ret; } |
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#define show_temp_reg(reg) \ |
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static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ char *buf) \ |
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{ \ |
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int nr = to_sensor_dev_attr(attr)->index; \ |
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struct asb100_data *data = asb100_update_device(dev); \ return sprintf_temp_from_reg(data->reg[nr], buf, nr); \ } show_temp_reg(temp); show_temp_reg(temp_max); show_temp_reg(temp_hyst); #define set_temp_reg(REG, reg) \ |
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static ssize_t set_##reg(struct device *dev, struct device_attribute *attr, \ const char *buf, size_t count) \ |
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{ \ |
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int nr = to_sensor_dev_attr(attr)->index; \ |
1da177e4c Linux-2.6.12-rc2 |
422 423 |
struct i2c_client *client = to_i2c_client(dev); \ struct asb100_data *data = i2c_get_clientdata(client); \ |
8c103696f hwmon: (asb100): ... |
424 425 426 427 |
long val; \ int err = kstrtol(buf, 10, &val); \ if (err) \ return err; \ |
9a61bf630 [PATCH] hwmon: Se... |
428 |
mutex_lock(&data->update_lock); \ |
1da177e4c Linux-2.6.12-rc2 |
429 430 431 432 433 434 435 436 437 438 |
switch (nr) { \ case 1: case 2: \ data->reg[nr] = LM75_TEMP_TO_REG(val); \ break; \ case 0: case 3: default: \ data->reg[nr] = TEMP_TO_REG(val); \ break; \ } \ asb100_write_value(client, ASB100_REG_TEMP_##REG(nr+1), \ data->reg[nr]); \ |
9a61bf630 [PATCH] hwmon: Se... |
439 |
mutex_unlock(&data->update_lock); \ |
1da177e4c Linux-2.6.12-rc2 |
440 441 442 443 444 445 446 |
return count; \ } set_temp_reg(MAX, temp_max); set_temp_reg(HYST, temp_hyst); #define sysfs_temp(num) \ |
fad33c5fd hwmon: (asb100) D... |
447 448 449 450 451 452 |
static SENSOR_DEVICE_ATTR(temp##num##_input, S_IRUGO, \ show_temp, NULL, num - 1); \ static SENSOR_DEVICE_ATTR(temp##num##_max, S_IRUGO | S_IWUSR, \ show_temp_max, set_temp_max, num - 1); \ static SENSOR_DEVICE_ATTR(temp##num##_max_hyst, S_IRUGO | S_IWUSR, \ show_temp_hyst, set_temp_hyst, num - 1) |
1da177e4c Linux-2.6.12-rc2 |
453 454 455 456 457 458 459 |
sysfs_temp(1); sysfs_temp(2); sysfs_temp(3); sysfs_temp(4); /* VID */ |
82e73f7f9 hwmon: (asb100) u... |
460 461 |
static ssize_t cpu0_vid_show(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4c Linux-2.6.12-rc2 |
462 463 464 465 466 |
{ struct asb100_data *data = asb100_update_device(dev); return sprintf(buf, "%d ", vid_from_reg(data->vid, data->vrm)); } |
82e73f7f9 hwmon: (asb100) u... |
467 |
static DEVICE_ATTR_RO(cpu0_vid); |
1da177e4c Linux-2.6.12-rc2 |
468 469 |
/* VRM */ |
82e73f7f9 hwmon: (asb100) u... |
470 |
static ssize_t vrm_show(struct device *dev, struct device_attribute *attr, |
af2219315 hwmon: (asb100) V... |
471 |
char *buf) |
1da177e4c Linux-2.6.12-rc2 |
472 |
{ |
90d6619a9 hwmon: VRM is not... |
473 |
struct asb100_data *data = dev_get_drvdata(dev); |
1da177e4c Linux-2.6.12-rc2 |
474 475 476 |
return sprintf(buf, "%d ", data->vrm); } |
82e73f7f9 hwmon: (asb100) u... |
477 478 |
static ssize_t vrm_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4c Linux-2.6.12-rc2 |
479 |
{ |
8f74efe81 hwmon: VRM is not... |
480 |
struct asb100_data *data = dev_get_drvdata(dev); |
8c103696f hwmon: (asb100): ... |
481 482 483 484 485 486 |
unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; |
db59ac434 hwmon: (asb100) F... |
487 488 489 |
if (val > 255) return -EINVAL; |
8c103696f hwmon: (asb100): ... |
490 |
data->vrm = val; |
1da177e4c Linux-2.6.12-rc2 |
491 492 493 494 |
return count; } /* Alarms */ |
82e73f7f9 hwmon: (asb100) u... |
495 |
static DEVICE_ATTR_RW(vrm); |
1da177e4c Linux-2.6.12-rc2 |
496 |
|
82e73f7f9 hwmon: (asb100) u... |
497 |
static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, |
af2219315 hwmon: (asb100) V... |
498 |
char *buf) |
1da177e4c Linux-2.6.12-rc2 |
499 500 |
{ struct asb100_data *data = asb100_update_device(dev); |
68188ba7d [PATCH] I2C: Kill... |
501 502 |
return sprintf(buf, "%u ", data->alarms); |
1da177e4c Linux-2.6.12-rc2 |
503 |
} |
82e73f7f9 hwmon: (asb100) u... |
504 |
static DEVICE_ATTR_RO(alarms); |
1da177e4c Linux-2.6.12-rc2 |
505 |
|
636866b9f hwmon: (asb100) A... |
506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 |
static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, char *buf) { int bitnr = to_sensor_dev_attr(attr)->index; struct asb100_data *data = asb100_update_device(dev); return sprintf(buf, "%u ", (data->alarms >> bitnr) & 1); } static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6); static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7); static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11); static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5); static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13); |
1da177e4c Linux-2.6.12-rc2 |
525 |
/* 1 PWM */ |
82e73f7f9 hwmon: (asb100) u... |
526 |
static ssize_t pwm1_show(struct device *dev, struct device_attribute *attr, |
af2219315 hwmon: (asb100) V... |
527 |
char *buf) |
1da177e4c Linux-2.6.12-rc2 |
528 529 530 531 532 |
{ struct asb100_data *data = asb100_update_device(dev); return sprintf(buf, "%d ", ASB100_PWM_FROM_REG(data->pwm & 0x0f)); } |
82e73f7f9 hwmon: (asb100) u... |
533 534 |
static ssize_t pwm1_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4c Linux-2.6.12-rc2 |
535 536 537 |
{ struct i2c_client *client = to_i2c_client(dev); struct asb100_data *data = i2c_get_clientdata(client); |
8c103696f hwmon: (asb100): ... |
538 539 540 541 542 543 |
unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; |
1da177e4c Linux-2.6.12-rc2 |
544 |
|
9a61bf630 [PATCH] hwmon: Se... |
545 |
mutex_lock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
546 547 548 |
data->pwm &= 0x80; /* keep the enable bit */ data->pwm |= (0x0f & ASB100_PWM_TO_REG(val)); asb100_write_value(client, ASB100_REG_PWM1, data->pwm); |
9a61bf630 [PATCH] hwmon: Se... |
549 |
mutex_unlock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
550 551 |
return count; } |
82e73f7f9 hwmon: (asb100) u... |
552 |
static ssize_t pwm1_enable_show(struct device *dev, |
af2219315 hwmon: (asb100) V... |
553 |
struct device_attribute *attr, char *buf) |
1da177e4c Linux-2.6.12-rc2 |
554 555 556 557 558 |
{ struct asb100_data *data = asb100_update_device(dev); return sprintf(buf, "%d ", (data->pwm & 0x80) ? 1 : 0); } |
82e73f7f9 hwmon: (asb100) u... |
559 560 561 |
static ssize_t pwm1_enable_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4c Linux-2.6.12-rc2 |
562 563 564 |
{ struct i2c_client *client = to_i2c_client(dev); struct asb100_data *data = i2c_get_clientdata(client); |
8c103696f hwmon: (asb100): ... |
565 566 567 568 569 570 |
unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; |
1da177e4c Linux-2.6.12-rc2 |
571 |
|
9a61bf630 [PATCH] hwmon: Se... |
572 |
mutex_lock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
573 574 575 |
data->pwm &= 0x0f; /* keep the duty cycle bits */ data->pwm |= (val ? 0x80 : 0x00); asb100_write_value(client, ASB100_REG_PWM1, data->pwm); |
9a61bf630 [PATCH] hwmon: Se... |
576 |
mutex_unlock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
577 578 |
return count; } |
82e73f7f9 hwmon: (asb100) u... |
579 580 |
static DEVICE_ATTR_RW(pwm1); static DEVICE_ATTR_RW(pwm1_enable); |
c1685f61b hwmon: Fix unchec... |
581 582 |
static struct attribute *asb100_attributes[] = { |
fad33c5fd hwmon: (asb100) D... |
583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 |
&sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_min.dev_attr.attr, &sensor_dev_attr_in0_max.dev_attr.attr, &sensor_dev_attr_in1_input.dev_attr.attr, &sensor_dev_attr_in1_min.dev_attr.attr, &sensor_dev_attr_in1_max.dev_attr.attr, &sensor_dev_attr_in2_input.dev_attr.attr, &sensor_dev_attr_in2_min.dev_attr.attr, &sensor_dev_attr_in2_max.dev_attr.attr, &sensor_dev_attr_in3_input.dev_attr.attr, &sensor_dev_attr_in3_min.dev_attr.attr, &sensor_dev_attr_in3_max.dev_attr.attr, &sensor_dev_attr_in4_input.dev_attr.attr, &sensor_dev_attr_in4_min.dev_attr.attr, &sensor_dev_attr_in4_max.dev_attr.attr, &sensor_dev_attr_in5_input.dev_attr.attr, &sensor_dev_attr_in5_min.dev_attr.attr, &sensor_dev_attr_in5_max.dev_attr.attr, &sensor_dev_attr_in6_input.dev_attr.attr, &sensor_dev_attr_in6_min.dev_attr.attr, &sensor_dev_attr_in6_max.dev_attr.attr, &sensor_dev_attr_fan1_input.dev_attr.attr, &sensor_dev_attr_fan1_min.dev_attr.attr, &sensor_dev_attr_fan1_div.dev_attr.attr, &sensor_dev_attr_fan2_input.dev_attr.attr, &sensor_dev_attr_fan2_min.dev_attr.attr, &sensor_dev_attr_fan2_div.dev_attr.attr, &sensor_dev_attr_fan3_input.dev_attr.attr, &sensor_dev_attr_fan3_min.dev_attr.attr, &sensor_dev_attr_fan3_div.dev_attr.attr, &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_temp1_max.dev_attr.attr, &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, &sensor_dev_attr_temp2_input.dev_attr.attr, &sensor_dev_attr_temp2_max.dev_attr.attr, &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, &sensor_dev_attr_temp3_input.dev_attr.attr, &sensor_dev_attr_temp3_max.dev_attr.attr, &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, &sensor_dev_attr_temp4_input.dev_attr.attr, &sensor_dev_attr_temp4_max.dev_attr.attr, &sensor_dev_attr_temp4_max_hyst.dev_attr.attr, |
c1685f61b hwmon: Fix unchec... |
627 |
|
636866b9f hwmon: (asb100) A... |
628 629 630 631 632 633 634 635 636 637 638 |
&sensor_dev_attr_in0_alarm.dev_attr.attr, &sensor_dev_attr_in1_alarm.dev_attr.attr, &sensor_dev_attr_in2_alarm.dev_attr.attr, &sensor_dev_attr_in3_alarm.dev_attr.attr, &sensor_dev_attr_in4_alarm.dev_attr.attr, &sensor_dev_attr_fan1_alarm.dev_attr.attr, &sensor_dev_attr_fan2_alarm.dev_attr.attr, &sensor_dev_attr_fan3_alarm.dev_attr.attr, &sensor_dev_attr_temp1_alarm.dev_attr.attr, &sensor_dev_attr_temp2_alarm.dev_attr.attr, &sensor_dev_attr_temp3_alarm.dev_attr.attr, |
c1685f61b hwmon: Fix unchec... |
639 640 641 642 643 644 645 646 647 648 649 650 |
&dev_attr_cpu0_vid.attr, &dev_attr_vrm.attr, &dev_attr_alarms.attr, &dev_attr_pwm1.attr, &dev_attr_pwm1_enable.attr, NULL }; static const struct attribute_group asb100_group = { .attrs = asb100_attributes, }; |
1da177e4c Linux-2.6.12-rc2 |
651 |
|
063675b15 hwmon: (asb100) C... |
652 |
static int asb100_detect_subclients(struct i2c_client *client) |
1da177e4c Linux-2.6.12-rc2 |
653 654 |
{ int i, id, err; |
063675b15 hwmon: (asb100) C... |
655 656 |
int address = client->addr; unsigned short sc_addr[2]; |
af2219315 hwmon: (asb100) V... |
657 |
struct asb100_data *data = i2c_get_clientdata(client); |
063675b15 hwmon: (asb100) C... |
658 |
struct i2c_adapter *adapter = client->adapter; |
1da177e4c Linux-2.6.12-rc2 |
659 660 661 662 663 664 665 |
id = i2c_adapter_id(adapter); if (force_subclients[0] == id && force_subclients[1] == address) { for (i = 2; i <= 3; i++) { if (force_subclients[i] < 0x48 || force_subclients[i] > 0x4f) { |
b55f37572 hwmon: Fix checkp... |
666 667 668 |
dev_err(&client->dev, "invalid subclient address %d; must be 0x48-0x4f ", |
1da177e4c Linux-2.6.12-rc2 |
669 670 671 672 673 |
force_subclients[i]); err = -ENODEV; goto ERROR_SC_2; } } |
af2219315 hwmon: (asb100) V... |
674 |
asb100_write_value(client, ASB100_REG_I2C_SUBADDR, |
1da177e4c Linux-2.6.12-rc2 |
675 |
(force_subclients[2] & 0x07) | |
af2219315 hwmon: (asb100) V... |
676 |
((force_subclients[3] & 0x07) << 4)); |
063675b15 hwmon: (asb100) C... |
677 678 |
sc_addr[0] = force_subclients[2]; sc_addr[1] = force_subclients[3]; |
1da177e4c Linux-2.6.12-rc2 |
679 |
} else { |
af2219315 hwmon: (asb100) V... |
680 |
int val = asb100_read_value(client, ASB100_REG_I2C_SUBADDR); |
063675b15 hwmon: (asb100) C... |
681 682 |
sc_addr[0] = 0x48 + (val & 0x07); sc_addr[1] = 0x48 + ((val >> 4) & 0x07); |
1da177e4c Linux-2.6.12-rc2 |
683 |
} |
063675b15 hwmon: (asb100) C... |
684 |
if (sc_addr[0] == sc_addr[1]) { |
b55f37572 hwmon: Fix checkp... |
685 686 687 688 |
dev_err(&client->dev, "duplicate addresses 0x%x for subclients ", sc_addr[0]); |
1da177e4c Linux-2.6.12-rc2 |
689 690 691 |
err = -ENODEV; goto ERROR_SC_2; } |
8f9508ebb hwmon: (asb100) c... |
692 693 |
data->lm75[0] = i2c_new_dummy_device(adapter, sc_addr[0]); if (IS_ERR(data->lm75[0])) { |
b55f37572 hwmon: Fix checkp... |
694 695 696 697 |
dev_err(&client->dev, "subclient %d registration at address 0x%x failed. ", 1, sc_addr[0]); |
8f9508ebb hwmon: (asb100) c... |
698 |
err = PTR_ERR(data->lm75[0]); |
1da177e4c Linux-2.6.12-rc2 |
699 700 |
goto ERROR_SC_2; } |
8f9508ebb hwmon: (asb100) c... |
701 702 |
data->lm75[1] = i2c_new_dummy_device(adapter, sc_addr[1]); if (IS_ERR(data->lm75[1])) { |
b55f37572 hwmon: Fix checkp... |
703 704 705 706 |
dev_err(&client->dev, "subclient %d registration at address 0x%x failed. ", 2, sc_addr[1]); |
8f9508ebb hwmon: (asb100) c... |
707 |
err = PTR_ERR(data->lm75[1]); |
1da177e4c Linux-2.6.12-rc2 |
708 709 710 711 712 713 714 |
goto ERROR_SC_3; } return 0; /* Undo inits in case of errors */ ERROR_SC_3: |
063675b15 hwmon: (asb100) C... |
715 |
i2c_unregister_device(data->lm75[0]); |
1da177e4c Linux-2.6.12-rc2 |
716 |
ERROR_SC_2: |
1da177e4c Linux-2.6.12-rc2 |
717 718 |
return err; } |
063675b15 hwmon: (asb100) C... |
719 |
/* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec7921 i2c: Drop the kin... |
720 |
static int asb100_detect(struct i2c_client *client, |
063675b15 hwmon: (asb100) C... |
721 |
struct i2c_board_info *info) |
1da177e4c Linux-2.6.12-rc2 |
722 |
{ |
063675b15 hwmon: (asb100) C... |
723 |
struct i2c_adapter *adapter = client->adapter; |
52df6440a hwmon: Clean up d... |
724 |
int val1, val2; |
1da177e4c Linux-2.6.12-rc2 |
725 |
|
1da177e4c Linux-2.6.12-rc2 |
726 |
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
4d630e2ba hwmon: (asb1000) ... |
727 728 |
pr_debug("detect failed, smbus byte data not supported! "); |
063675b15 hwmon: (asb100) C... |
729 |
return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
730 |
} |
52df6440a hwmon: Clean up d... |
731 732 |
val1 = i2c_smbus_read_byte_data(client, ASB100_REG_BANK); val2 = i2c_smbus_read_byte_data(client, ASB100_REG_CHIPMAN); |
1da177e4c Linux-2.6.12-rc2 |
733 |
|
52df6440a hwmon: Clean up d... |
734 735 736 737 738 739 |
/* If we're in bank 0 */ if ((!(val1 & 0x07)) && /* Check for ASB100 ID (low byte) */ (((!(val1 & 0x80)) && (val2 != 0x94)) || /* Check for ASB100 ID (high byte ) */ ((val1 & 0x80) && (val2 != 0x06)))) { |
4d630e2ba hwmon: (asb1000) ... |
740 741 |
pr_debug("detect failed, bad chip id 0x%02x! ", val2); |
52df6440a hwmon: Clean up d... |
742 743 |
return -ENODEV; } |
1da177e4c Linux-2.6.12-rc2 |
744 |
|
52df6440a hwmon: Clean up d... |
745 |
/* Put it now into bank 0 and Vendor ID High Byte */ |
063675b15 hwmon: (asb100) C... |
746 747 748 |
i2c_smbus_write_byte_data(client, ASB100_REG_BANK, (i2c_smbus_read_byte_data(client, ASB100_REG_BANK) & 0x78) | 0x80); |
1da177e4c Linux-2.6.12-rc2 |
749 750 |
/* Determine the chip type. */ |
52df6440a hwmon: Clean up d... |
751 752 753 754 755 |
val1 = i2c_smbus_read_byte_data(client, ASB100_REG_WCHIPID); val2 = i2c_smbus_read_byte_data(client, ASB100_REG_CHIPMAN); if (val1 != 0x31 || val2 != 0x06) return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
756 |
|
063675b15 hwmon: (asb100) C... |
757 |
strlcpy(info->type, "asb100", I2C_NAME_SIZE); |
1da177e4c Linux-2.6.12-rc2 |
758 |
|
063675b15 hwmon: (asb100) C... |
759 760 |
return 0; } |
674870385 hwmon: use simple... |
761 |
static int asb100_probe(struct i2c_client *client) |
063675b15 hwmon: (asb100) C... |
762 763 764 |
{ int err; struct asb100_data *data; |
64adf3983 hwmon: (asb100) C... |
765 766 767 768 |
data = devm_kzalloc(&client->dev, sizeof(struct asb100_data), GFP_KERNEL); if (!data) return -ENOMEM; |
063675b15 hwmon: (asb100) C... |
769 770 771 772 |
i2c_set_clientdata(client, data); mutex_init(&data->lock); mutex_init(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
773 774 |
/* Attach secondary lm75 clients */ |
063675b15 hwmon: (asb100) C... |
775 776 |
err = asb100_detect_subclients(client); if (err) |
64adf3983 hwmon: (asb100) C... |
777 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
778 779 |
/* Initialize the chip */ |
af2219315 hwmon: (asb100) V... |
780 |
asb100_init_client(client); |
1da177e4c Linux-2.6.12-rc2 |
781 782 |
/* A few vars need to be filled upon startup */ |
af2219315 hwmon: (asb100) V... |
783 784 785 |
data->fan_min[0] = asb100_read_value(client, ASB100_REG_FAN_MIN(0)); data->fan_min[1] = asb100_read_value(client, ASB100_REG_FAN_MIN(1)); data->fan_min[2] = asb100_read_value(client, ASB100_REG_FAN_MIN(2)); |
1da177e4c Linux-2.6.12-rc2 |
786 787 |
/* Register sysfs hooks */ |
8c103696f hwmon: (asb100): ... |
788 789 |
err = sysfs_create_group(&client->dev.kobj, &asb100_group); if (err) |
c1685f61b hwmon: Fix unchec... |
790 |
goto ERROR3; |
af2219315 hwmon: (asb100) V... |
791 |
data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe43 hwmon: Convert fr... |
792 793 |
if (IS_ERR(data->hwmon_dev)) { err = PTR_ERR(data->hwmon_dev); |
c1685f61b hwmon: Fix unchec... |
794 |
goto ERROR4; |
943b0830c [PATCH] I2C hwmon... |
795 |
} |
1da177e4c Linux-2.6.12-rc2 |
796 |
return 0; |
c1685f61b hwmon: Fix unchec... |
797 |
ERROR4: |
af2219315 hwmon: (asb100) V... |
798 |
sysfs_remove_group(&client->dev.kobj, &asb100_group); |
943b0830c [PATCH] I2C hwmon... |
799 |
ERROR3: |
063675b15 hwmon: (asb100) C... |
800 801 |
i2c_unregister_device(data->lm75[1]); i2c_unregister_device(data->lm75[0]); |
1da177e4c Linux-2.6.12-rc2 |
802 803 |
return err; } |
063675b15 hwmon: (asb100) C... |
804 |
static int asb100_remove(struct i2c_client *client) |
1da177e4c Linux-2.6.12-rc2 |
805 |
{ |
943b0830c [PATCH] I2C hwmon... |
806 |
struct asb100_data *data = i2c_get_clientdata(client); |
943b0830c [PATCH] I2C hwmon... |
807 |
|
063675b15 hwmon: (asb100) C... |
808 809 |
hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &asb100_group); |
1da177e4c Linux-2.6.12-rc2 |
810 |
|
063675b15 hwmon: (asb100) C... |
811 812 |
i2c_unregister_device(data->lm75[1]); i2c_unregister_device(data->lm75[0]); |
943b0830c [PATCH] I2C hwmon... |
813 |
|
1da177e4c Linux-2.6.12-rc2 |
814 815 |
return 0; } |
8c103696f hwmon: (asb100): ... |
816 817 818 819 |
/* * The SMBus locks itself, usually, but nothing may access the chip between * bank switches. */ |
1da177e4c Linux-2.6.12-rc2 |
820 821 822 823 824 |
static int asb100_read_value(struct i2c_client *client, u16 reg) { struct asb100_data *data = i2c_get_clientdata(client); struct i2c_client *cl; int res, bank; |
9a61bf630 [PATCH] hwmon: Se... |
825 |
mutex_lock(&data->lock); |
1da177e4c Linux-2.6.12-rc2 |
826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 |
bank = (reg >> 8) & 0x0f; if (bank > 2) /* switch banks */ i2c_smbus_write_byte_data(client, ASB100_REG_BANK, bank); if (bank == 0 || bank > 2) { res = i2c_smbus_read_byte_data(client, reg & 0xff); } else { /* switch to subclient */ cl = data->lm75[bank - 1]; /* convert from ISA to LM75 I2C addresses */ switch (reg & 0xff) { case 0x50: /* TEMP */ |
90f4102ce hwmon: Use i2c_sm... |
841 |
res = i2c_smbus_read_word_swapped(cl, 0); |
1da177e4c Linux-2.6.12-rc2 |
842 843 844 845 846 |
break; case 0x52: /* CONFIG */ res = i2c_smbus_read_byte_data(cl, 1); break; case 0x53: /* HYST */ |
90f4102ce hwmon: Use i2c_sm... |
847 |
res = i2c_smbus_read_word_swapped(cl, 2); |
1da177e4c Linux-2.6.12-rc2 |
848 849 850 |
break; case 0x55: /* MAX */ default: |
90f4102ce hwmon: Use i2c_sm... |
851 |
res = i2c_smbus_read_word_swapped(cl, 3); |
1da177e4c Linux-2.6.12-rc2 |
852 853 854 855 856 857 |
break; } } if (bank > 2) i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0); |
9a61bf630 [PATCH] hwmon: Se... |
858 |
mutex_unlock(&data->lock); |
1da177e4c Linux-2.6.12-rc2 |
859 860 861 862 863 864 865 866 867 |
return res; } static void asb100_write_value(struct i2c_client *client, u16 reg, u16 value) { struct asb100_data *data = i2c_get_clientdata(client); struct i2c_client *cl; int bank; |
9a61bf630 [PATCH] hwmon: Se... |
868 |
mutex_lock(&data->lock); |
1da177e4c Linux-2.6.12-rc2 |
869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 |
bank = (reg >> 8) & 0x0f; if (bank > 2) /* switch banks */ i2c_smbus_write_byte_data(client, ASB100_REG_BANK, bank); if (bank == 0 || bank > 2) { i2c_smbus_write_byte_data(client, reg & 0xff, value & 0xff); } else { /* switch to subclient */ cl = data->lm75[bank - 1]; /* convert from ISA to LM75 I2C addresses */ switch (reg & 0xff) { case 0x52: /* CONFIG */ i2c_smbus_write_byte_data(cl, 1, value & 0xff); break; case 0x53: /* HYST */ |
90f4102ce hwmon: Use i2c_sm... |
887 |
i2c_smbus_write_word_swapped(cl, 2, value); |
1da177e4c Linux-2.6.12-rc2 |
888 889 |
break; case 0x55: /* MAX */ |
90f4102ce hwmon: Use i2c_sm... |
890 |
i2c_smbus_write_word_swapped(cl, 3, value); |
1da177e4c Linux-2.6.12-rc2 |
891 892 893 894 895 896 |
break; } } if (bank > 2) i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0); |
9a61bf630 [PATCH] hwmon: Se... |
897 |
mutex_unlock(&data->lock); |
1da177e4c Linux-2.6.12-rc2 |
898 899 900 901 902 |
} static void asb100_init_client(struct i2c_client *client) { struct asb100_data *data = i2c_get_clientdata(client); |
1da177e4c Linux-2.6.12-rc2 |
903 |
|
303760b44 [PATCH] hwmon: hw... |
904 |
data->vrm = vid_which_vrm(); |
1da177e4c Linux-2.6.12-rc2 |
905 906 |
/* Start monitoring */ |
af2219315 hwmon: (asb100) V... |
907 |
asb100_write_value(client, ASB100_REG_CONFIG, |
1da177e4c Linux-2.6.12-rc2 |
908 909 910 911 912 913 914 915 |
(asb100_read_value(client, ASB100_REG_CONFIG) & 0xf7) | 0x01); } static struct asb100_data *asb100_update_device(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct asb100_data *data = i2c_get_clientdata(client); int i; |
9a61bf630 [PATCH] hwmon: Se... |
916 |
mutex_lock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 |
if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || !data->valid) { dev_dbg(&client->dev, "starting device update... "); /* 7 voltage inputs */ for (i = 0; i < 7; i++) { data->in[i] = asb100_read_value(client, ASB100_REG_IN(i)); data->in_min[i] = asb100_read_value(client, ASB100_REG_IN_MIN(i)); data->in_max[i] = asb100_read_value(client, ASB100_REG_IN_MAX(i)); } /* 3 fan inputs */ for (i = 0; i < 3; i++) { data->fan[i] = asb100_read_value(client, ASB100_REG_FAN(i)); data->fan_min[i] = asb100_read_value(client, ASB100_REG_FAN_MIN(i)); } /* 4 temperature inputs */ for (i = 1; i <= 4; i++) { data->temp[i-1] = asb100_read_value(client, ASB100_REG_TEMP(i)); data->temp_max[i-1] = asb100_read_value(client, ASB100_REG_TEMP_MAX(i)); data->temp_hyst[i-1] = asb100_read_value(client, ASB100_REG_TEMP_HYST(i)); } /* VID and fan divisors */ i = asb100_read_value(client, ASB100_REG_VID_FANDIV); data->vid = i & 0x0f; data->vid |= (asb100_read_value(client, ASB100_REG_CHIPID) & 0x01) << 4; data->fan_div[0] = (i >> 4) & 0x03; data->fan_div[1] = (i >> 6) & 0x03; data->fan_div[2] = (asb100_read_value(client, ASB100_REG_PIN) >> 6) & 0x03; /* PWM */ data->pwm = asb100_read_value(client, ASB100_REG_PWM1); /* alarms */ data->alarms = asb100_read_value(client, ASB100_REG_ALARM1) + (asb100_read_value(client, ASB100_REG_ALARM2) << 8); data->last_updated = jiffies; data->valid = 1; dev_dbg(&client->dev, "... device update complete "); } |
9a61bf630 [PATCH] hwmon: Se... |
975 |
mutex_unlock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
976 977 978 |
return data; } |
f0967eea8 hwmon: convert dr... |
979 |
module_i2c_driver(asb100_driver); |
1da177e4c Linux-2.6.12-rc2 |
980 981 982 983 |
MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>"); MODULE_DESCRIPTION("ASB100 Bach driver"); MODULE_LICENSE("GPL"); |