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drivers/hwmon/asb100.c
27.9 KB
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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> 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; either version 2 of the License, or (at your option) any later version. 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. */ /* 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. Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA 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); MODULE_PARM_DESC(force_subclients, "List of subclient addresses: " |
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"{bus, clientaddr, subclientaddr1, subclientaddr2}"); /* 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 /* CONVERSIONS Rounding and limit checking is only done on the TO_REG variants. */ /* These constants are a guess, consistent w/ w83781d */ #define ASB100_IN_MIN ( 0) #define ASB100_IN_MAX (4080) /* IN: 1/1000 V (0V to 4.08V) REG: 16mV/bit */ static u8 IN_TO_REG(unsigned val) { unsigned nval = SENSORS_LIMIT(val, ASB100_IN_MIN, ASB100_IN_MAX); 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; rpm = SENSORS_LIMIT(rpm, 1, 1000000); return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); } static int FAN_FROM_REG(u8 val, int div) { return val==0 ? -1 : val==255 ? 0 : 1350000/(val*div); } /* These constants are a guess, consistent w/ w83781d */ #define ASB100_TEMP_MIN (-128000) #define ASB100_TEMP_MAX ( 127000) /* 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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{ int ntemp = SENSORS_LIMIT(temp, ASB100_TEMP_MIN, ASB100_TEMP_MAX); ntemp += (ntemp<0 ? -500 : 500); return (u8)(ntemp / 1000); } static int TEMP_FROM_REG(u8 reg) { return (s8)reg * 1000; } /* PWM: 0 - 255 per sensors documentation REG: (6.25% duty cycle per bit) */ static u8 ASB100_PWM_TO_REG(int pwm) { pwm = SENSORS_LIMIT(pwm, 0, 255); 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)) /* FAN DIV: 1, 2, 4, or 8 (defaults to 2) REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */ static u8 DIV_TO_REG(long val) { return val==8 ? 3 : val==4 ? 2 : val==1 ? 0 : 1; } /* 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. */ 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, const struct i2c_device_id *id); |
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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 = asb100_probe, .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); \ unsigned long val = simple_strtoul(buf, NULL, 10); \ \ |
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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); u32 val = simple_strtoul(buf, NULL, 10); |
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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; } /* 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 |
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least surprise; the user doesn't expect the fan minimum to change just |
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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; unsigned long val = simple_strtoul(buf, NULL, 10); int reg; |
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|
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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; \ |
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struct i2c_client *client = to_i2c_client(dev); \ struct asb100_data *data = i2c_get_clientdata(client); \ |
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long val = simple_strtol(buf, NULL, 10); \ |
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\ |
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mutex_lock(&data->update_lock); \ |
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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]); \ |
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mutex_unlock(&data->update_lock); \ |
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return count; \ } set_temp_reg(MAX, temp_max); set_temp_reg(HYST, temp_hyst); #define sysfs_temp(num) \ |
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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) |
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sysfs_temp(1); sysfs_temp(2); sysfs_temp(3); sysfs_temp(4); /* VID */ |
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static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf) |
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{ struct asb100_data *data = asb100_update_device(dev); return sprintf(buf, "%d ", vid_from_reg(data->vid, data->vrm)); } static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); |
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/* VRM */ |
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static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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struct asb100_data *data = dev_get_drvdata(dev); |
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464 465 466 |
return sprintf(buf, "%d ", data->vrm); } |
af2219315 hwmon: (asb100) V... |
467 468 |
static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4c Linux-2.6.12-rc2 |
469 |
{ |
8f74efe81 hwmon: VRM is not... |
470 471 |
struct asb100_data *data = dev_get_drvdata(dev); data->vrm = simple_strtoul(buf, NULL, 10); |
1da177e4c Linux-2.6.12-rc2 |
472 473 474 475 476 |
return count; } /* Alarms */ static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); |
1da177e4c Linux-2.6.12-rc2 |
477 |
|
af2219315 hwmon: (asb100) V... |
478 479 |
static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4c Linux-2.6.12-rc2 |
480 481 |
{ struct asb100_data *data = asb100_update_device(dev); |
68188ba7d [PATCH] I2C: Kill... |
482 483 |
return sprintf(buf, "%u ", data->alarms); |
1da177e4c Linux-2.6.12-rc2 |
484 485 486 |
} static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
1da177e4c Linux-2.6.12-rc2 |
487 |
|
636866b9f hwmon: (asb100) A... |
488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 |
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 |
507 |
/* 1 PWM */ |
af2219315 hwmon: (asb100) V... |
508 509 |
static ssize_t show_pwm1(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4c Linux-2.6.12-rc2 |
510 511 512 513 514 |
{ struct asb100_data *data = asb100_update_device(dev); return sprintf(buf, "%d ", ASB100_PWM_FROM_REG(data->pwm & 0x0f)); } |
af2219315 hwmon: (asb100) V... |
515 516 |
static ssize_t set_pwm1(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4c Linux-2.6.12-rc2 |
517 518 519 520 |
{ struct i2c_client *client = to_i2c_client(dev); struct asb100_data *data = i2c_get_clientdata(client); unsigned long val = simple_strtoul(buf, NULL, 10); |
9a61bf630 [PATCH] hwmon: Se... |
521 |
mutex_lock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
522 523 524 |
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... |
525 |
mutex_unlock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
526 527 |
return count; } |
af2219315 hwmon: (asb100) V... |
528 529 |
static ssize_t show_pwm_enable1(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4c Linux-2.6.12-rc2 |
530 531 532 533 534 |
{ struct asb100_data *data = asb100_update_device(dev); return sprintf(buf, "%d ", (data->pwm & 0x80) ? 1 : 0); } |
af2219315 hwmon: (asb100) V... |
535 536 |
static ssize_t set_pwm_enable1(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4c Linux-2.6.12-rc2 |
537 538 539 540 |
{ struct i2c_client *client = to_i2c_client(dev); struct asb100_data *data = i2c_get_clientdata(client); unsigned long val = simple_strtoul(buf, NULL, 10); |
9a61bf630 [PATCH] hwmon: Se... |
541 |
mutex_lock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
542 543 544 |
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... |
545 |
mutex_unlock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
546 547 548 549 550 551 |
return count; } static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm1, set_pwm1); static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable1, set_pwm_enable1); |
c1685f61b hwmon: Fix unchec... |
552 553 |
static struct attribute *asb100_attributes[] = { |
fad33c5fd hwmon: (asb100) D... |
554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 |
&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... |
598 |
|
636866b9f hwmon: (asb100) A... |
599 600 601 602 603 604 605 606 607 608 609 |
&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... |
610 611 612 613 614 615 616 617 618 619 620 621 |
&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 |
622 |
|
063675b15 hwmon: (asb100) C... |
623 |
static int asb100_detect_subclients(struct i2c_client *client) |
1da177e4c Linux-2.6.12-rc2 |
624 625 |
{ int i, id, err; |
063675b15 hwmon: (asb100) C... |
626 627 |
int address = client->addr; unsigned short sc_addr[2]; |
af2219315 hwmon: (asb100) V... |
628 |
struct asb100_data *data = i2c_get_clientdata(client); |
063675b15 hwmon: (asb100) C... |
629 |
struct i2c_adapter *adapter = client->adapter; |
1da177e4c Linux-2.6.12-rc2 |
630 631 632 633 634 635 636 |
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) { |
af2219315 hwmon: (asb100) V... |
637 |
dev_err(&client->dev, "invalid subclient " |
1da177e4c Linux-2.6.12-rc2 |
638 639 640 641 642 643 644 |
"address %d; must be 0x48-0x4f ", force_subclients[i]); err = -ENODEV; goto ERROR_SC_2; } } |
af2219315 hwmon: (asb100) V... |
645 |
asb100_write_value(client, ASB100_REG_I2C_SUBADDR, |
1da177e4c Linux-2.6.12-rc2 |
646 |
(force_subclients[2] & 0x07) | |
af2219315 hwmon: (asb100) V... |
647 |
((force_subclients[3] & 0x07) << 4)); |
063675b15 hwmon: (asb100) C... |
648 649 |
sc_addr[0] = force_subclients[2]; sc_addr[1] = force_subclients[3]; |
1da177e4c Linux-2.6.12-rc2 |
650 |
} else { |
af2219315 hwmon: (asb100) V... |
651 |
int val = asb100_read_value(client, ASB100_REG_I2C_SUBADDR); |
063675b15 hwmon: (asb100) C... |
652 653 |
sc_addr[0] = 0x48 + (val & 0x07); sc_addr[1] = 0x48 + ((val >> 4) & 0x07); |
1da177e4c Linux-2.6.12-rc2 |
654 |
} |
063675b15 hwmon: (asb100) C... |
655 |
if (sc_addr[0] == sc_addr[1]) { |
af2219315 hwmon: (asb100) V... |
656 |
dev_err(&client->dev, "duplicate addresses 0x%x " |
063675b15 hwmon: (asb100) C... |
657 658 |
"for subclients ", sc_addr[0]); |
1da177e4c Linux-2.6.12-rc2 |
659 660 661 |
err = -ENODEV; goto ERROR_SC_2; } |
063675b15 hwmon: (asb100) C... |
662 663 |
data->lm75[0] = i2c_new_dummy(adapter, sc_addr[0]); if (!data->lm75[0]) { |
af2219315 hwmon: (asb100) V... |
664 |
dev_err(&client->dev, "subclient %d registration " |
063675b15 hwmon: (asb100) C... |
665 666 667 |
"at address 0x%x failed. ", 1, sc_addr[0]); err = -ENOMEM; |
1da177e4c Linux-2.6.12-rc2 |
668 669 |
goto ERROR_SC_2; } |
063675b15 hwmon: (asb100) C... |
670 671 |
data->lm75[1] = i2c_new_dummy(adapter, sc_addr[1]); if (!data->lm75[1]) { |
af2219315 hwmon: (asb100) V... |
672 |
dev_err(&client->dev, "subclient %d registration " |
063675b15 hwmon: (asb100) C... |
673 674 675 |
"at address 0x%x failed. ", 2, sc_addr[1]); err = -ENOMEM; |
1da177e4c Linux-2.6.12-rc2 |
676 677 678 679 680 681 682 |
goto ERROR_SC_3; } return 0; /* Undo inits in case of errors */ ERROR_SC_3: |
063675b15 hwmon: (asb100) C... |
683 |
i2c_unregister_device(data->lm75[0]); |
1da177e4c Linux-2.6.12-rc2 |
684 |
ERROR_SC_2: |
1da177e4c Linux-2.6.12-rc2 |
685 686 |
return err; } |
063675b15 hwmon: (asb100) C... |
687 |
/* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec7921 i2c: Drop the kin... |
688 |
static int asb100_detect(struct i2c_client *client, |
063675b15 hwmon: (asb100) C... |
689 |
struct i2c_board_info *info) |
1da177e4c Linux-2.6.12-rc2 |
690 |
{ |
063675b15 hwmon: (asb100) C... |
691 |
struct i2c_adapter *adapter = client->adapter; |
52df6440a hwmon: Clean up d... |
692 |
int val1, val2; |
1da177e4c Linux-2.6.12-rc2 |
693 |
|
1da177e4c Linux-2.6.12-rc2 |
694 |
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
4d630e2ba hwmon: (asb1000) ... |
695 696 |
pr_debug("detect failed, smbus byte data not supported! "); |
063675b15 hwmon: (asb100) C... |
697 |
return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
698 |
} |
52df6440a hwmon: Clean up d... |
699 700 |
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 |
701 |
|
52df6440a hwmon: Clean up d... |
702 703 704 705 706 707 |
/* 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) ... |
708 709 |
pr_debug("detect failed, bad chip id 0x%02x! ", val2); |
52df6440a hwmon: Clean up d... |
710 711 |
return -ENODEV; } |
1da177e4c Linux-2.6.12-rc2 |
712 |
|
52df6440a hwmon: Clean up d... |
713 |
/* Put it now into bank 0 and Vendor ID High Byte */ |
063675b15 hwmon: (asb100) C... |
714 715 716 |
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 |
717 718 |
/* Determine the chip type. */ |
52df6440a hwmon: Clean up d... |
719 720 721 722 723 |
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 |
724 |
|
063675b15 hwmon: (asb100) C... |
725 |
strlcpy(info->type, "asb100", I2C_NAME_SIZE); |
1da177e4c Linux-2.6.12-rc2 |
726 |
|
063675b15 hwmon: (asb100) C... |
727 728 729 730 731 732 733 734 735 736 737 |
return 0; } static int asb100_probe(struct i2c_client *client, const struct i2c_device_id *id) { int err; struct asb100_data *data; data = kzalloc(sizeof(struct asb100_data), GFP_KERNEL); if (!data) { |
4d630e2ba hwmon: (asb1000) ... |
738 739 |
pr_debug("probe failed, kzalloc failed! "); |
063675b15 hwmon: (asb100) C... |
740 741 742 743 744 745 746 |
err = -ENOMEM; goto ERROR0; } i2c_set_clientdata(client, data); mutex_init(&data->lock); mutex_init(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
747 748 |
/* Attach secondary lm75 clients */ |
063675b15 hwmon: (asb100) C... |
749 750 751 |
err = asb100_detect_subclients(client); if (err) goto ERROR1; |
1da177e4c Linux-2.6.12-rc2 |
752 753 |
/* Initialize the chip */ |
af2219315 hwmon: (asb100) V... |
754 |
asb100_init_client(client); |
1da177e4c Linux-2.6.12-rc2 |
755 756 |
/* A few vars need to be filled upon startup */ |
af2219315 hwmon: (asb100) V... |
757 758 759 |
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 |
760 761 |
/* Register sysfs hooks */ |
af2219315 hwmon: (asb100) V... |
762 |
if ((err = sysfs_create_group(&client->dev.kobj, &asb100_group))) |
c1685f61b hwmon: Fix unchec... |
763 |
goto ERROR3; |
af2219315 hwmon: (asb100) V... |
764 |
data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe43 hwmon: Convert fr... |
765 766 |
if (IS_ERR(data->hwmon_dev)) { err = PTR_ERR(data->hwmon_dev); |
c1685f61b hwmon: Fix unchec... |
767 |
goto ERROR4; |
943b0830c [PATCH] I2C hwmon... |
768 |
} |
1da177e4c Linux-2.6.12-rc2 |
769 |
return 0; |
c1685f61b hwmon: Fix unchec... |
770 |
ERROR4: |
af2219315 hwmon: (asb100) V... |
771 |
sysfs_remove_group(&client->dev.kobj, &asb100_group); |
943b0830c [PATCH] I2C hwmon... |
772 |
ERROR3: |
063675b15 hwmon: (asb100) C... |
773 774 |
i2c_unregister_device(data->lm75[1]); i2c_unregister_device(data->lm75[0]); |
1da177e4c Linux-2.6.12-rc2 |
775 776 777 778 779 |
ERROR1: kfree(data); ERROR0: return err; } |
063675b15 hwmon: (asb100) C... |
780 |
static int asb100_remove(struct i2c_client *client) |
1da177e4c Linux-2.6.12-rc2 |
781 |
{ |
943b0830c [PATCH] I2C hwmon... |
782 |
struct asb100_data *data = i2c_get_clientdata(client); |
943b0830c [PATCH] I2C hwmon... |
783 |
|
063675b15 hwmon: (asb100) C... |
784 785 |
hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &asb100_group); |
1da177e4c Linux-2.6.12-rc2 |
786 |
|
063675b15 hwmon: (asb100) C... |
787 788 |
i2c_unregister_device(data->lm75[1]); i2c_unregister_device(data->lm75[0]); |
943b0830c [PATCH] I2C hwmon... |
789 |
|
063675b15 hwmon: (asb100) C... |
790 |
kfree(data); |
1da177e4c Linux-2.6.12-rc2 |
791 792 793 794 795 796 797 798 799 800 801 |
return 0; } /* The SMBus locks itself, usually, but nothing may access the chip between bank switches. */ 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... |
802 |
mutex_lock(&data->lock); |
1da177e4c Linux-2.6.12-rc2 |
803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 |
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... |
818 |
res = i2c_smbus_read_word_swapped(cl, 0); |
1da177e4c Linux-2.6.12-rc2 |
819 820 821 822 823 |
break; case 0x52: /* CONFIG */ res = i2c_smbus_read_byte_data(cl, 1); break; case 0x53: /* HYST */ |
90f4102ce hwmon: Use i2c_sm... |
824 |
res = i2c_smbus_read_word_swapped(cl, 2); |
1da177e4c Linux-2.6.12-rc2 |
825 826 827 |
break; case 0x55: /* MAX */ default: |
90f4102ce hwmon: Use i2c_sm... |
828 |
res = i2c_smbus_read_word_swapped(cl, 3); |
1da177e4c Linux-2.6.12-rc2 |
829 830 831 832 833 834 |
break; } } if (bank > 2) i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0); |
9a61bf630 [PATCH] hwmon: Se... |
835 |
mutex_unlock(&data->lock); |
1da177e4c Linux-2.6.12-rc2 |
836 837 838 839 840 841 842 843 844 |
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... |
845 |
mutex_lock(&data->lock); |
1da177e4c Linux-2.6.12-rc2 |
846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 |
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... |
864 |
i2c_smbus_write_word_swapped(cl, 2, value); |
1da177e4c Linux-2.6.12-rc2 |
865 866 |
break; case 0x55: /* MAX */ |
90f4102ce hwmon: Use i2c_sm... |
867 |
i2c_smbus_write_word_swapped(cl, 3, value); |
1da177e4c Linux-2.6.12-rc2 |
868 869 870 871 872 873 |
break; } } if (bank > 2) i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0); |
9a61bf630 [PATCH] hwmon: Se... |
874 |
mutex_unlock(&data->lock); |
1da177e4c Linux-2.6.12-rc2 |
875 876 877 878 879 |
} static void asb100_init_client(struct i2c_client *client) { struct asb100_data *data = i2c_get_clientdata(client); |
1da177e4c Linux-2.6.12-rc2 |
880 |
|
303760b44 [PATCH] hwmon: hw... |
881 |
data->vrm = vid_which_vrm(); |
1da177e4c Linux-2.6.12-rc2 |
882 883 |
/* Start monitoring */ |
af2219315 hwmon: (asb100) V... |
884 |
asb100_write_value(client, ASB100_REG_CONFIG, |
1da177e4c Linux-2.6.12-rc2 |
885 886 887 888 889 890 891 892 |
(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... |
893 |
mutex_lock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 |
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... |
952 |
mutex_unlock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 |
return data; } static int __init asb100_init(void) { return i2c_add_driver(&asb100_driver); } static void __exit asb100_exit(void) { i2c_del_driver(&asb100_driver); } MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>"); MODULE_DESCRIPTION("ASB100 Bach driver"); MODULE_LICENSE("GPL"); module_init(asb100_init); module_exit(asb100_exit); |