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drivers/hwmon/gl520sm.c
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/* gl520sm.c - Part of lm_sensors, Linux kernel modules for hardware monitoring Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>, |
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Kyösti Mälkki <kmalkki@cc.hut.fi> |
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Copyright (c) 2005 Maarten Deprez <maartendeprez@users.sourceforge.net> 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. */ #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> |
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#include <linux/jiffies.h> |
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#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/mutex.h> |
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#include <linux/sysfs.h> |
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/* Type of the extra sensor */ static unsigned short extra_sensor_type; module_param(extra_sensor_type, ushort, 0); MODULE_PARM_DESC(extra_sensor_type, "Type of extra sensor (0=autodetect, 1=temperature, 2=voltage)"); /* Addresses to scan */ |
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static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END }; |
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|
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/* Many GL520 constants specified below |
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One of the inputs can be configured as either temp or voltage. |
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That's why _TEMP2 and _IN4 access the same register |
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*/ /* The GL520 registers */ #define GL520_REG_CHIP_ID 0x00 #define GL520_REG_REVISION 0x01 #define GL520_REG_CONF 0x03 #define GL520_REG_MASK 0x11 #define GL520_REG_VID_INPUT 0x02 |
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static const u8 GL520_REG_IN_INPUT[] = { 0x15, 0x14, 0x13, 0x0d, 0x0e }; static const u8 GL520_REG_IN_LIMIT[] = { 0x0c, 0x09, 0x0a, 0x0b }; static const u8 GL520_REG_IN_MIN[] = { 0x0c, 0x09, 0x0a, 0x0b, 0x18 }; static const u8 GL520_REG_IN_MAX[] = { 0x0c, 0x09, 0x0a, 0x0b, 0x17 }; static const u8 GL520_REG_TEMP_INPUT[] = { 0x04, 0x0e }; static const u8 GL520_REG_TEMP_MAX[] = { 0x05, 0x17 }; static const u8 GL520_REG_TEMP_MAX_HYST[] = { 0x06, 0x18 }; |
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#define GL520_REG_FAN_INPUT 0x07 #define GL520_REG_FAN_MIN 0x08 #define GL520_REG_FAN_DIV 0x0f #define GL520_REG_FAN_OFF GL520_REG_FAN_DIV #define GL520_REG_ALARMS 0x12 #define GL520_REG_BEEP_MASK 0x10 #define GL520_REG_BEEP_ENABLE GL520_REG_CONF /* * Function declarations */ |
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static int gl520_probe(struct i2c_client *client, const struct i2c_device_id *id); |
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static int gl520_detect(struct i2c_client *client, struct i2c_board_info *info); |
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static void gl520_init_client(struct i2c_client *client); |
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static int gl520_remove(struct i2c_client *client); |
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static int gl520_read_value(struct i2c_client *client, u8 reg); static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value); static struct gl520_data *gl520_update_device(struct device *dev); /* Driver data */ |
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static const struct i2c_device_id gl520_id[] = { |
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{ "gl520sm", 0 }, |
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{ } }; MODULE_DEVICE_TABLE(i2c, gl520_id); |
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static struct i2c_driver gl520_driver = { |
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.class = I2C_CLASS_HWMON, |
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.driver = { |
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.name = "gl520sm", }, |
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.probe = gl520_probe, .remove = gl520_remove, .id_table = gl520_id, .detect = gl520_detect, |
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.address_list = normal_i2c, |
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}; /* Client data */ struct gl520_data { |
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struct device *hwmon_dev; |
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struct mutex update_lock; |
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char valid; /* zero until the following fields are valid */ unsigned long last_updated; /* in jiffies */ u8 vid; u8 vrm; u8 in_input[5]; /* [0] = VVD */ u8 in_min[5]; /* [0] = VDD */ u8 in_max[5]; /* [0] = VDD */ u8 fan_input[2]; u8 fan_min[2]; u8 fan_div[2]; u8 fan_off; u8 temp_input[2]; u8 temp_max[2]; u8 temp_max_hyst[2]; u8 alarms; u8 beep_enable; u8 beep_mask; u8 alarm_mask; u8 two_temps; }; /* * Sysfs stuff */ |
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static ssize_t get_cpu_vid(struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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struct gl520_data *data = gl520_update_device(dev); |
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return sprintf(buf, "%u ", vid_from_reg(data->vid, data->vrm)); } |
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static DEVICE_ATTR(cpu0_vid, S_IRUGO, get_cpu_vid, NULL); |
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#define VDD_FROM_REG(val) (((val)*95+2)/4) #define VDD_TO_REG(val) (SENSORS_LIMIT((((val)*4+47)/95),0,255)) #define IN_FROM_REG(val) ((val)*19) #define IN_TO_REG(val) (SENSORS_LIMIT((((val)+9)/19),0,255)) |
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static ssize_t get_in_input(struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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int n = to_sensor_dev_attr(attr)->index; struct gl520_data *data = gl520_update_device(dev); |
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u8 r = data->in_input[n]; if (n == 0) return sprintf(buf, "%d ", VDD_FROM_REG(r)); else return sprintf(buf, "%d ", IN_FROM_REG(r)); } |
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static ssize_t get_in_min(struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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int n = to_sensor_dev_attr(attr)->index; struct gl520_data *data = gl520_update_device(dev); |
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u8 r = data->in_min[n]; if (n == 0) return sprintf(buf, "%d ", VDD_FROM_REG(r)); else return sprintf(buf, "%d ", IN_FROM_REG(r)); } |
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static ssize_t get_in_max(struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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int n = to_sensor_dev_attr(attr)->index; struct gl520_data *data = gl520_update_device(dev); |
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u8 r = data->in_max[n]; if (n == 0) return sprintf(buf, "%d ", VDD_FROM_REG(r)); else return sprintf(buf, "%d ", IN_FROM_REG(r)); } |
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static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ |
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struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = i2c_get_clientdata(client); int n = to_sensor_dev_attr(attr)->index; |
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long v = simple_strtol(buf, NULL, 10); u8 r; |
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mutex_lock(&data->update_lock); |
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if (n == 0) r = VDD_TO_REG(v); else r = IN_TO_REG(v); data->in_min[n] = r; if (n < 4) |
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gl520_write_value(client, GL520_REG_IN_MIN[n], (gl520_read_value(client, GL520_REG_IN_MIN[n]) & ~0xff) | r); |
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else |
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gl520_write_value(client, GL520_REG_IN_MIN[n], r); |
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|
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mutex_unlock(&data->update_lock); |
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return count; } |
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static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ |
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struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = i2c_get_clientdata(client); int n = to_sensor_dev_attr(attr)->index; |
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long v = simple_strtol(buf, NULL, 10); u8 r; if (n == 0) r = VDD_TO_REG(v); else r = IN_TO_REG(v); |
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mutex_lock(&data->update_lock); |
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data->in_max[n] = r; if (n < 4) |
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gl520_write_value(client, GL520_REG_IN_MAX[n], (gl520_read_value(client, GL520_REG_IN_MAX[n]) & ~0xff00) | (r << 8)); |
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else |
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gl520_write_value(client, GL520_REG_IN_MAX[n], r); |
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|
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mutex_unlock(&data->update_lock); |
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return count; } |
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static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, get_in_input, NULL, 0); static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, get_in_input, NULL, 1); static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, get_in_input, NULL, 2); static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, get_in_input, NULL, 3); static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, get_in_input, NULL, 4); static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR, get_in_min, set_in_min, 0); static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO | S_IWUSR, get_in_min, set_in_min, 1); static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO | S_IWUSR, get_in_min, set_in_min, 2); static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO | S_IWUSR, get_in_min, set_in_min, 3); static SENSOR_DEVICE_ATTR(in4_min, S_IRUGO | S_IWUSR, get_in_min, set_in_min, 4); static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR, get_in_max, set_in_max, 0); static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO | S_IWUSR, get_in_max, set_in_max, 1); static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO | S_IWUSR, get_in_max, set_in_max, 2); static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO | S_IWUSR, get_in_max, set_in_max, 3); static SENSOR_DEVICE_ATTR(in4_max, S_IRUGO | S_IWUSR, get_in_max, set_in_max, 4); |
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#define DIV_FROM_REG(val) (1 << (val)) #define FAN_FROM_REG(val,div) ((val)==0 ? 0 : (480000/((val) << (div)))) #define FAN_TO_REG(val,div) ((val)<=0?0:SENSORS_LIMIT((480000 + ((val) << ((div)-1))) / ((val) << (div)), 1, 255)); |
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static ssize_t get_fan_input(struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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int n = to_sensor_dev_attr(attr)->index; struct gl520_data *data = gl520_update_device(dev); return sprintf(buf, "%d ", FAN_FROM_REG(data->fan_input[n], data->fan_div[n])); |
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} |
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static ssize_t get_fan_min(struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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int n = to_sensor_dev_attr(attr)->index; struct gl520_data *data = gl520_update_device(dev); return sprintf(buf, "%d ", FAN_FROM_REG(data->fan_min[n], data->fan_div[n])); |
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} |
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static ssize_t get_fan_div(struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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int n = to_sensor_dev_attr(attr)->index; struct gl520_data *data = gl520_update_device(dev); return sprintf(buf, "%d ", DIV_FROM_REG(data->fan_div[n])); |
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} |
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static ssize_t get_fan_off(struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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struct gl520_data *data = gl520_update_device(dev); |
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return sprintf(buf, "%d ", data->fan_off); } |
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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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struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = i2c_get_clientdata(client); int n = to_sensor_dev_attr(attr)->index; |
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unsigned long v = simple_strtoul(buf, NULL, 10); u8 r; |
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mutex_lock(&data->update_lock); |
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r = FAN_TO_REG(v, data->fan_div[n]); data->fan_min[n] = r; |
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|
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if (n == 0) gl520_write_value(client, GL520_REG_FAN_MIN, (gl520_read_value(client, GL520_REG_FAN_MIN) & ~0xff00) | (r << 8)); |
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gl520_write_value(client, GL520_REG_FAN_MIN, (gl520_read_value(client, GL520_REG_FAN_MIN) & ~0xff) | r); |
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data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); |
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if (data->fan_min[n] == 0) data->alarm_mask &= (n == 0) ? ~0x20 : ~0x40; |
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data->alarm_mask |= (n == 0) ? 0x20 : 0x40; |
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data->beep_mask &= data->alarm_mask; gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); |
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mutex_unlock(&data->update_lock); |
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return count; } |
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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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struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = i2c_get_clientdata(client); int n = to_sensor_dev_attr(attr)->index; |
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unsigned long v = simple_strtoul(buf, NULL, 10); u8 r; switch (v) { case 1: r = 0; break; case 2: r = 1; break; case 4: r = 2; break; case 8: r = 3; break; default: dev_err(&client->dev, "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8! ", v); return -EINVAL; } |
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mutex_lock(&data->update_lock); |
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data->fan_div[n] = r; |
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|
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if (n == 0) gl520_write_value(client, GL520_REG_FAN_DIV, (gl520_read_value(client, GL520_REG_FAN_DIV) & ~0xc0) | (r << 6)); |
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gl520_write_value(client, GL520_REG_FAN_DIV, (gl520_read_value(client, GL520_REG_FAN_DIV) & ~0x30) | (r << 4)); |
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|
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mutex_unlock(&data->update_lock); |
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return count; } |
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static ssize_t set_fan_off(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ |
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struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = i2c_get_clientdata(client); |
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u8 r = simple_strtoul(buf, NULL, 10)?1:0; |
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mutex_lock(&data->update_lock); |
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data->fan_off = r; |
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gl520_write_value(client, GL520_REG_FAN_OFF, (gl520_read_value(client, GL520_REG_FAN_OFF) & ~0x0c) | (r << 2)); |
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mutex_unlock(&data->update_lock); |
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return count; } |
86d47f127 hwmon: (gl520sm) ... |
386 387 388 389 390 391 392 393 394 395 396 397 |
static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, get_fan_input, NULL, 0); static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, get_fan_input, NULL, 1); static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR, get_fan_min, set_fan_min, 0); static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR, get_fan_min, set_fan_min, 1); static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, get_fan_div, set_fan_div, 0); static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, get_fan_div, set_fan_div, 1); static DEVICE_ATTR(fan1_off, S_IRUGO | S_IWUSR, get_fan_off, set_fan_off); |
1da177e4c Linux-2.6.12-rc2 |
398 399 |
#define TEMP_FROM_REG(val) (((val) - 130) * 1000) #define TEMP_TO_REG(val) (SENSORS_LIMIT(((((val)<0?(val)-500:(val)+500) / 1000)+130),0,255)) |
86d47f127 hwmon: (gl520sm) ... |
400 401 |
static ssize_t get_temp_input(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4c Linux-2.6.12-rc2 |
402 |
{ |
86d47f127 hwmon: (gl520sm) ... |
403 404 405 406 407 |
int n = to_sensor_dev_attr(attr)->index; struct gl520_data *data = gl520_update_device(dev); return sprintf(buf, "%d ", TEMP_FROM_REG(data->temp_input[n])); |
1da177e4c Linux-2.6.12-rc2 |
408 |
} |
86d47f127 hwmon: (gl520sm) ... |
409 410 |
static ssize_t get_temp_max(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4c Linux-2.6.12-rc2 |
411 |
{ |
86d47f127 hwmon: (gl520sm) ... |
412 413 414 415 416 |
int n = to_sensor_dev_attr(attr)->index; struct gl520_data *data = gl520_update_device(dev); return sprintf(buf, "%d ", TEMP_FROM_REG(data->temp_max[n])); |
1da177e4c Linux-2.6.12-rc2 |
417 |
} |
86d47f127 hwmon: (gl520sm) ... |
418 419 |
static ssize_t get_temp_max_hyst(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4c Linux-2.6.12-rc2 |
420 |
{ |
86d47f127 hwmon: (gl520sm) ... |
421 422 423 424 425 |
int n = to_sensor_dev_attr(attr)->index; struct gl520_data *data = gl520_update_device(dev); return sprintf(buf, "%d ", TEMP_FROM_REG(data->temp_max_hyst[n])); |
1da177e4c Linux-2.6.12-rc2 |
426 |
} |
86d47f127 hwmon: (gl520sm) ... |
427 428 |
static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4c Linux-2.6.12-rc2 |
429 |
{ |
86d47f127 hwmon: (gl520sm) ... |
430 431 432 |
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = i2c_get_clientdata(client); int n = to_sensor_dev_attr(attr)->index; |
1da177e4c Linux-2.6.12-rc2 |
433 |
long v = simple_strtol(buf, NULL, 10); |
9a61bf630 [PATCH] hwmon: Se... |
434 |
mutex_lock(&data->update_lock); |
86d47f127 hwmon: (gl520sm) ... |
435 436 |
data->temp_max[n] = TEMP_TO_REG(v); gl520_write_value(client, GL520_REG_TEMP_MAX[n], data->temp_max[n]); |
9a61bf630 [PATCH] hwmon: Se... |
437 |
mutex_unlock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
438 439 |
return count; } |
86d47f127 hwmon: (gl520sm) ... |
440 441 |
static ssize_t set_temp_max_hyst(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4c Linux-2.6.12-rc2 |
442 |
{ |
86d47f127 hwmon: (gl520sm) ... |
443 444 445 |
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = i2c_get_clientdata(client); int n = to_sensor_dev_attr(attr)->index; |
1da177e4c Linux-2.6.12-rc2 |
446 |
long v = simple_strtol(buf, NULL, 10); |
9a61bf630 [PATCH] hwmon: Se... |
447 |
mutex_lock(&data->update_lock); |
86d47f127 hwmon: (gl520sm) ... |
448 449 450 |
data->temp_max_hyst[n] = TEMP_TO_REG(v); gl520_write_value(client, GL520_REG_TEMP_MAX_HYST[n], data->temp_max_hyst[n]); |
9a61bf630 [PATCH] hwmon: Se... |
451 |
mutex_unlock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
452 453 |
return count; } |
86d47f127 hwmon: (gl520sm) ... |
454 455 456 457 458 459 460 461 462 463 464 465 466 |
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, get_temp_input, NULL, 0); static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, get_temp_input, NULL, 1); static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, get_temp_max, set_temp_max, 0); static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR, get_temp_max, set_temp_max, 1); static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, get_temp_max_hyst, set_temp_max_hyst, 0); static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, get_temp_max_hyst, set_temp_max_hyst, 1); static ssize_t get_alarms(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4c Linux-2.6.12-rc2 |
467 |
{ |
86d47f127 hwmon: (gl520sm) ... |
468 |
struct gl520_data *data = gl520_update_device(dev); |
1da177e4c Linux-2.6.12-rc2 |
469 470 471 |
return sprintf(buf, "%d ", data->alarms); } |
86d47f127 hwmon: (gl520sm) ... |
472 473 |
static ssize_t get_beep_enable(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4c Linux-2.6.12-rc2 |
474 |
{ |
86d47f127 hwmon: (gl520sm) ... |
475 |
struct gl520_data *data = gl520_update_device(dev); |
1da177e4c Linux-2.6.12-rc2 |
476 477 478 |
return sprintf(buf, "%d ", data->beep_enable); } |
86d47f127 hwmon: (gl520sm) ... |
479 480 |
static ssize_t get_beep_mask(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4c Linux-2.6.12-rc2 |
481 |
{ |
86d47f127 hwmon: (gl520sm) ... |
482 |
struct gl520_data *data = gl520_update_device(dev); |
1da177e4c Linux-2.6.12-rc2 |
483 484 485 |
return sprintf(buf, "%d ", data->beep_mask); } |
86d47f127 hwmon: (gl520sm) ... |
486 487 |
static ssize_t set_beep_enable(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4c Linux-2.6.12-rc2 |
488 |
{ |
86d47f127 hwmon: (gl520sm) ... |
489 490 |
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = i2c_get_clientdata(client); |
1da177e4c Linux-2.6.12-rc2 |
491 |
u8 r = simple_strtoul(buf, NULL, 10)?0:1; |
9a61bf630 [PATCH] hwmon: Se... |
492 |
mutex_lock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
493 |
data->beep_enable = !r; |
86d47f127 hwmon: (gl520sm) ... |
494 495 496 |
gl520_write_value(client, GL520_REG_BEEP_ENABLE, (gl520_read_value(client, GL520_REG_BEEP_ENABLE) & ~0x04) | (r << 2)); |
9a61bf630 [PATCH] hwmon: Se... |
497 |
mutex_unlock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
498 499 |
return count; } |
86d47f127 hwmon: (gl520sm) ... |
500 501 |
static ssize_t set_beep_mask(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4c Linux-2.6.12-rc2 |
502 |
{ |
86d47f127 hwmon: (gl520sm) ... |
503 504 |
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = i2c_get_clientdata(client); |
1da177e4c Linux-2.6.12-rc2 |
505 |
u8 r = simple_strtoul(buf, NULL, 10); |
f28dc2f78 hwmon: (gl520sm) ... |
506 |
|
9a61bf630 [PATCH] hwmon: Se... |
507 |
mutex_lock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
508 509 |
r &= data->alarm_mask; data->beep_mask = r; |
86d47f127 hwmon: (gl520sm) ... |
510 |
gl520_write_value(client, GL520_REG_BEEP_MASK, r); |
9a61bf630 [PATCH] hwmon: Se... |
511 |
mutex_unlock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
512 513 |
return count; } |
86d47f127 hwmon: (gl520sm) ... |
514 515 516 517 518 |
static DEVICE_ATTR(alarms, S_IRUGO, get_alarms, NULL); static DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR, get_beep_enable, set_beep_enable); static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR, get_beep_mask, set_beep_mask); |
e86a77609 hwmon: (gl520sm) ... |
519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 |
static ssize_t get_alarm(struct device *dev, struct device_attribute *attr, char *buf) { int bit_nr = to_sensor_dev_attr(attr)->index; struct gl520_data *data = gl520_update_device(dev); return sprintf(buf, "%d ", (data->alarms >> bit_nr) & 1); } static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, get_alarm, NULL, 0); static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, get_alarm, NULL, 1); static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, get_alarm, NULL, 2); static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, get_alarm, NULL, 3); static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, get_alarm, NULL, 4); static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, get_alarm, NULL, 5); static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, get_alarm, NULL, 6); static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, get_alarm, NULL, 7); static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, get_alarm, NULL, 7); static ssize_t get_beep(struct device *dev, struct device_attribute *attr, char *buf) { int bitnr = to_sensor_dev_attr(attr)->index; struct gl520_data *data = gl520_update_device(dev); return sprintf(buf, "%d ", (data->beep_mask >> bitnr) & 1); } static ssize_t set_beep(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = i2c_get_clientdata(client); int bitnr = to_sensor_dev_attr(attr)->index; unsigned long bit; bit = simple_strtoul(buf, NULL, 10); if (bit & ~1) return -EINVAL; mutex_lock(&data->update_lock); data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); if (bit) data->beep_mask |= (1 << bitnr); else data->beep_mask &= ~(1 << bitnr); gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); mutex_unlock(&data->update_lock); return count; } static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 0); static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 1); static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 2); static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 3); static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 4); static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 5); static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 6); static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 7); static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 7); |
87808be4f Fix unchecked ret... |
581 582 |
static struct attribute *gl520_attributes[] = { &dev_attr_cpu0_vid.attr, |
86d47f127 hwmon: (gl520sm) ... |
583 584 585 |
&sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_min.dev_attr.attr, &sensor_dev_attr_in0_max.dev_attr.attr, |
e86a77609 hwmon: (gl520sm) ... |
586 587 |
&sensor_dev_attr_in0_alarm.dev_attr.attr, &sensor_dev_attr_in0_beep.dev_attr.attr, |
86d47f127 hwmon: (gl520sm) ... |
588 589 590 |
&sensor_dev_attr_in1_input.dev_attr.attr, &sensor_dev_attr_in1_min.dev_attr.attr, &sensor_dev_attr_in1_max.dev_attr.attr, |
e86a77609 hwmon: (gl520sm) ... |
591 592 |
&sensor_dev_attr_in1_alarm.dev_attr.attr, &sensor_dev_attr_in1_beep.dev_attr.attr, |
86d47f127 hwmon: (gl520sm) ... |
593 594 595 |
&sensor_dev_attr_in2_input.dev_attr.attr, &sensor_dev_attr_in2_min.dev_attr.attr, &sensor_dev_attr_in2_max.dev_attr.attr, |
e86a77609 hwmon: (gl520sm) ... |
596 597 |
&sensor_dev_attr_in2_alarm.dev_attr.attr, &sensor_dev_attr_in2_beep.dev_attr.attr, |
86d47f127 hwmon: (gl520sm) ... |
598 599 600 |
&sensor_dev_attr_in3_input.dev_attr.attr, &sensor_dev_attr_in3_min.dev_attr.attr, &sensor_dev_attr_in3_max.dev_attr.attr, |
e86a77609 hwmon: (gl520sm) ... |
601 602 |
&sensor_dev_attr_in3_alarm.dev_attr.attr, &sensor_dev_attr_in3_beep.dev_attr.attr, |
86d47f127 hwmon: (gl520sm) ... |
603 604 605 606 |
&sensor_dev_attr_fan1_input.dev_attr.attr, &sensor_dev_attr_fan1_min.dev_attr.attr, &sensor_dev_attr_fan1_div.dev_attr.attr, |
e86a77609 hwmon: (gl520sm) ... |
607 608 |
&sensor_dev_attr_fan1_alarm.dev_attr.attr, &sensor_dev_attr_fan1_beep.dev_attr.attr, |
87808be4f Fix unchecked ret... |
609 |
&dev_attr_fan1_off.attr, |
86d47f127 hwmon: (gl520sm) ... |
610 611 612 |
&sensor_dev_attr_fan2_input.dev_attr.attr, &sensor_dev_attr_fan2_min.dev_attr.attr, &sensor_dev_attr_fan2_div.dev_attr.attr, |
e86a77609 hwmon: (gl520sm) ... |
613 614 |
&sensor_dev_attr_fan2_alarm.dev_attr.attr, &sensor_dev_attr_fan2_beep.dev_attr.attr, |
87808be4f Fix unchecked ret... |
615 |
|
86d47f127 hwmon: (gl520sm) ... |
616 617 618 |
&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, |
e86a77609 hwmon: (gl520sm) ... |
619 620 |
&sensor_dev_attr_temp1_alarm.dev_attr.attr, &sensor_dev_attr_temp1_beep.dev_attr.attr, |
87808be4f Fix unchecked ret... |
621 622 623 624 625 626 627 628 629 630 631 632 |
&dev_attr_alarms.attr, &dev_attr_beep_enable.attr, &dev_attr_beep_mask.attr, NULL }; static const struct attribute_group gl520_group = { .attrs = gl520_attributes, }; static struct attribute *gl520_attributes_opt[] = { |
86d47f127 hwmon: (gl520sm) ... |
633 634 635 |
&sensor_dev_attr_in4_input.dev_attr.attr, &sensor_dev_attr_in4_min.dev_attr.attr, &sensor_dev_attr_in4_max.dev_attr.attr, |
e86a77609 hwmon: (gl520sm) ... |
636 637 |
&sensor_dev_attr_in4_alarm.dev_attr.attr, &sensor_dev_attr_in4_beep.dev_attr.attr, |
87808be4f Fix unchecked ret... |
638 |
|
86d47f127 hwmon: (gl520sm) ... |
639 640 641 |
&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, |
e86a77609 hwmon: (gl520sm) ... |
642 643 |
&sensor_dev_attr_temp2_alarm.dev_attr.attr, &sensor_dev_attr_temp2_beep.dev_attr.attr, |
87808be4f Fix unchecked ret... |
644 645 646 647 648 649 |
NULL }; static const struct attribute_group gl520_group_opt = { .attrs = gl520_attributes_opt, }; |
1da177e4c Linux-2.6.12-rc2 |
650 651 652 653 |
/* * Real code */ |
a23a9fe1d hwmon: (gl520sm) ... |
654 |
/* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec7921 i2c: Drop the kin... |
655 |
static int gl520_detect(struct i2c_client *client, struct i2c_board_info *info) |
1da177e4c Linux-2.6.12-rc2 |
656 |
{ |
a23a9fe1d hwmon: (gl520sm) ... |
657 |
struct i2c_adapter *adapter = client->adapter; |
1da177e4c Linux-2.6.12-rc2 |
658 659 660 |
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) |
a23a9fe1d hwmon: (gl520sm) ... |
661 |
return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
662 663 |
/* Determine the chip type. */ |
52df6440a hwmon: Clean up d... |
664 665 666 667 668 669 |
if ((gl520_read_value(client, GL520_REG_CHIP_ID) != 0x20) || ((gl520_read_value(client, GL520_REG_REVISION) & 0x7f) != 0x00) || ((gl520_read_value(client, GL520_REG_CONF) & 0x80) != 0x00)) { dev_dbg(&client->dev, "Unknown chip type, skipping "); return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
670 |
} |
a23a9fe1d hwmon: (gl520sm) ... |
671 |
strlcpy(info->type, "gl520sm", I2C_NAME_SIZE); |
1da177e4c Linux-2.6.12-rc2 |
672 |
|
a23a9fe1d hwmon: (gl520sm) ... |
673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 |
return 0; } static int gl520_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct gl520_data *data; int err; data = kzalloc(sizeof(struct gl520_data), GFP_KERNEL); if (!data) { err = -ENOMEM; goto exit; } i2c_set_clientdata(client, data); mutex_init(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
690 691 |
/* Initialize the GL520SM chip */ |
f28dc2f78 hwmon: (gl520sm) ... |
692 |
gl520_init_client(client); |
1da177e4c Linux-2.6.12-rc2 |
693 694 |
/* Register sysfs hooks */ |
f28dc2f78 hwmon: (gl520sm) ... |
695 |
if ((err = sysfs_create_group(&client->dev.kobj, &gl520_group))) |
a23a9fe1d hwmon: (gl520sm) ... |
696 |
goto exit_free; |
1da177e4c Linux-2.6.12-rc2 |
697 |
|
87808be4f Fix unchecked ret... |
698 |
if (data->two_temps) { |
f28dc2f78 hwmon: (gl520sm) ... |
699 |
if ((err = device_create_file(&client->dev, |
86d47f127 hwmon: (gl520sm) ... |
700 |
&sensor_dev_attr_temp2_input.dev_attr)) |
f28dc2f78 hwmon: (gl520sm) ... |
701 |
|| (err = device_create_file(&client->dev, |
86d47f127 hwmon: (gl520sm) ... |
702 |
&sensor_dev_attr_temp2_max.dev_attr)) |
f28dc2f78 hwmon: (gl520sm) ... |
703 |
|| (err = device_create_file(&client->dev, |
e86a77609 hwmon: (gl520sm) ... |
704 705 706 707 708 |
&sensor_dev_attr_temp2_max_hyst.dev_attr)) || (err = device_create_file(&client->dev, &sensor_dev_attr_temp2_alarm.dev_attr)) || (err = device_create_file(&client->dev, &sensor_dev_attr_temp2_beep.dev_attr))) |
87808be4f Fix unchecked ret... |
709 710 |
goto exit_remove_files; } else { |
f28dc2f78 hwmon: (gl520sm) ... |
711 |
if ((err = device_create_file(&client->dev, |
86d47f127 hwmon: (gl520sm) ... |
712 |
&sensor_dev_attr_in4_input.dev_attr)) |
f28dc2f78 hwmon: (gl520sm) ... |
713 |
|| (err = device_create_file(&client->dev, |
86d47f127 hwmon: (gl520sm) ... |
714 |
&sensor_dev_attr_in4_min.dev_attr)) |
f28dc2f78 hwmon: (gl520sm) ... |
715 |
|| (err = device_create_file(&client->dev, |
e86a77609 hwmon: (gl520sm) ... |
716 717 718 719 720 |
&sensor_dev_attr_in4_max.dev_attr)) || (err = device_create_file(&client->dev, &sensor_dev_attr_in4_alarm.dev_attr)) || (err = device_create_file(&client->dev, &sensor_dev_attr_in4_beep.dev_attr))) |
87808be4f Fix unchecked ret... |
721 722 |
goto exit_remove_files; } |
1da177e4c Linux-2.6.12-rc2 |
723 |
|
1da177e4c Linux-2.6.12-rc2 |
724 |
|
f28dc2f78 hwmon: (gl520sm) ... |
725 |
data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe43 hwmon: Convert fr... |
726 727 |
if (IS_ERR(data->hwmon_dev)) { err = PTR_ERR(data->hwmon_dev); |
87808be4f Fix unchecked ret... |
728 729 |
goto exit_remove_files; } |
1da177e4c Linux-2.6.12-rc2 |
730 731 |
return 0; |
87808be4f Fix unchecked ret... |
732 |
exit_remove_files: |
f28dc2f78 hwmon: (gl520sm) ... |
733 734 |
sysfs_remove_group(&client->dev.kobj, &gl520_group); sysfs_remove_group(&client->dev.kobj, &gl520_group_opt); |
1da177e4c Linux-2.6.12-rc2 |
735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 |
exit_free: kfree(data); exit: return err; } /* Called when we have found a new GL520SM. */ static void gl520_init_client(struct i2c_client *client) { struct gl520_data *data = i2c_get_clientdata(client); u8 oldconf, conf; conf = oldconf = gl520_read_value(client, GL520_REG_CONF); data->alarm_mask = 0xff; |
303760b44 [PATCH] hwmon: hw... |
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data->vrm = vid_which_vrm(); |
1da177e4c Linux-2.6.12-rc2 |
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if (extra_sensor_type == 1) conf &= ~0x10; else if (extra_sensor_type == 2) conf |= 0x10; data->two_temps = !(conf & 0x10); /* If IRQ# is disabled, we can safely force comparator mode */ if (!(conf & 0x20)) conf &= 0xf7; /* Enable monitoring if needed */ conf |= 0x40; if (conf != oldconf) gl520_write_value(client, GL520_REG_CONF, conf); gl520_update_device(&(client->dev)); if (data->fan_min[0] == 0) data->alarm_mask &= ~0x20; if (data->fan_min[1] == 0) data->alarm_mask &= ~0x40; data->beep_mask &= data->alarm_mask; gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); } |
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static int gl520_remove(struct i2c_client *client) |
1da177e4c Linux-2.6.12-rc2 |
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{ |
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struct gl520_data *data = i2c_get_clientdata(client); |
1da177e4c Linux-2.6.12-rc2 |
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|
1beeffe43 hwmon: Convert fr... |
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hwmon_device_unregister(data->hwmon_dev); |
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sysfs_remove_group(&client->dev.kobj, &gl520_group); sysfs_remove_group(&client->dev.kobj, &gl520_group_opt); |
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|
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kfree(data); |
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return 0; } |
f28dc2f78 hwmon: (gl520sm) ... |
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/* Registers 0x07 to 0x0c are word-sized, others are byte-sized |
1da177e4c Linux-2.6.12-rc2 |
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GL520 uses a high-byte first convention */ static int gl520_read_value(struct i2c_client *client, u8 reg) { if ((reg >= 0x07) && (reg <= 0x0c)) return swab16(i2c_smbus_read_word_data(client, reg)); else return i2c_smbus_read_byte_data(client, reg); } static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value) { if ((reg >= 0x07) && (reg <= 0x0c)) return i2c_smbus_write_word_data(client, reg, swab16(value)); else return i2c_smbus_write_byte_data(client, reg, value); } static struct gl520_data *gl520_update_device(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = i2c_get_clientdata(client); |
8b4b0ab41 hwmon: (gl520sm) ... |
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int val, i; |
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|
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mutex_lock(&data->update_lock); |
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if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) { |
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dev_dbg(&client->dev, "Starting gl520sm update "); data->alarms = gl520_read_value(client, GL520_REG_ALARMS); data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); data->vid = gl520_read_value(client, GL520_REG_VID_INPUT) & 0x1f; |
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for (i = 0; i < 4; i++) { data->in_input[i] = gl520_read_value(client, GL520_REG_IN_INPUT[i]); val = gl520_read_value(client, GL520_REG_IN_LIMIT[i]); data->in_min[i] = val & 0xff; data->in_max[i] = (val >> 8) & 0xff; } |
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val = gl520_read_value(client, GL520_REG_FAN_INPUT); data->fan_input[0] = (val >> 8) & 0xff; data->fan_input[1] = val & 0xff; val = gl520_read_value(client, GL520_REG_FAN_MIN); data->fan_min[0] = (val >> 8) & 0xff; data->fan_min[1] = val & 0xff; |
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data->temp_input[0] = gl520_read_value(client, GL520_REG_TEMP_INPUT[0]); data->temp_max[0] = gl520_read_value(client, GL520_REG_TEMP_MAX[0]); data->temp_max_hyst[0] = gl520_read_value(client, GL520_REG_TEMP_MAX_HYST[0]); |
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val = gl520_read_value(client, GL520_REG_FAN_DIV); data->fan_div[0] = (val >> 6) & 0x03; data->fan_div[1] = (val >> 4) & 0x03; data->fan_off = (val >> 2) & 0x01; data->alarms &= data->alarm_mask; val = gl520_read_value(client, GL520_REG_CONF); data->beep_enable = !((val >> 2) & 1); |
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/* Temp1 and Vin4 are the same input */ if (data->two_temps) { |
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data->temp_input[1] = gl520_read_value(client, GL520_REG_TEMP_INPUT[1]); data->temp_max[1] = gl520_read_value(client, GL520_REG_TEMP_MAX[1]); data->temp_max_hyst[1] = gl520_read_value(client, GL520_REG_TEMP_MAX_HYST[1]); |
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} else { |
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data->in_input[4] = gl520_read_value(client, GL520_REG_IN_INPUT[4]); data->in_min[4] = gl520_read_value(client, GL520_REG_IN_MIN[4]); data->in_max[4] = gl520_read_value(client, GL520_REG_IN_MAX[4]); |
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} data->last_updated = jiffies; data->valid = 1; } |
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mutex_unlock(&data->update_lock); |
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return data; } static int __init sensors_gl520sm_init(void) { return i2c_add_driver(&gl520_driver); } static void __exit sensors_gl520sm_exit(void) { i2c_del_driver(&gl520_driver); } MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, " |
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"Kyösti Mälkki <kmalkki@cc.hut.fi>, " |
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"Maarten Deprez <maartendeprez@users.sourceforge.net>"); MODULE_DESCRIPTION("GL520SM driver"); MODULE_LICENSE("GPL"); module_init(sensors_gl520sm_init); module_exit(sensors_gl520sm_exit); |