diff options
Diffstat (limited to 'drivers/i2c/chips/gl518sm.c')
| -rw-r--r-- | drivers/i2c/chips/gl518sm.c | 605 |
1 files changed, 605 insertions, 0 deletions
diff --git a/drivers/i2c/chips/gl518sm.c b/drivers/i2c/chips/gl518sm.c new file mode 100644 index 000000000000..c82d6ce21205 --- /dev/null +++ b/drivers/i2c/chips/gl518sm.c @@ -0,0 +1,605 @@ +/* + * gl518sm.c - Part of lm_sensors, Linux kernel modules for hardware + * monitoring + * Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and + * Kyosti Malkki <kmalkki@cc.hut.fi> + * Copyright (C) 2004 Hong-Gunn Chew <hglinux@gunnet.org> and + * Jean Delvare <khali@linux-fr.org> + * + * 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. + * + * Ported to Linux 2.6 by Hong-Gunn Chew with the help of Jean Delvare + * and advice of Greg Kroah-Hartman. + * + * Notes about the port: + * Release 0x00 of the GL518SM chipset doesn't support reading of in0, + * in1 nor in2. The original driver had an ugly workaround to get them + * anyway (changing limits and watching alarms trigger and wear off). + * We did not keep that part of the original driver in the Linux 2.6 + * version, since it was making the driver significantly more complex + * with no real benefit. + * + * History: + * 2004-01-28 Original port. (Hong-Gunn Chew) + * 2004-01-31 Code review and approval. (Jean Delvare) + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/jiffies.h> +#include <linux/i2c.h> +#include <linux/i2c-sensor.h> + +/* Addresses to scan */ +static unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END }; +static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END }; + +/* Insmod parameters */ +SENSORS_INSMOD_2(gl518sm_r00, gl518sm_r80); + +/* Many GL518 constants specified below */ + +/* The GL518 registers */ +#define GL518_REG_CHIP_ID 0x00 +#define GL518_REG_REVISION 0x01 +#define GL518_REG_VENDOR_ID 0x02 +#define GL518_REG_CONF 0x03 +#define GL518_REG_TEMP_IN 0x04 +#define GL518_REG_TEMP_MAX 0x05 +#define GL518_REG_TEMP_HYST 0x06 +#define GL518_REG_FAN_COUNT 0x07 +#define GL518_REG_FAN_LIMIT 0x08 +#define GL518_REG_VIN1_LIMIT 0x09 +#define GL518_REG_VIN2_LIMIT 0x0a +#define GL518_REG_VIN3_LIMIT 0x0b +#define GL518_REG_VDD_LIMIT 0x0c +#define GL518_REG_VIN3 0x0d +#define GL518_REG_MISC 0x0f +#define GL518_REG_ALARM 0x10 +#define GL518_REG_MASK 0x11 +#define GL518_REG_INT 0x12 +#define GL518_REG_VIN2 0x13 +#define GL518_REG_VIN1 0x14 +#define GL518_REG_VDD 0x15 + + +/* + * Conversions. Rounding and limit checking is only done on the TO_REG + * variants. Note that you should be a bit careful with which arguments + * these macros are called: arguments may be evaluated more than once. + * Fixing this is just not worth it. + */ + +#define RAW_FROM_REG(val) val + +#define BOOL_FROM_REG(val) ((val)?0:1) +#define BOOL_TO_REG(val) ((val)?0:1) + +#define TEMP_TO_REG(val) (SENSORS_LIMIT(((((val)<0? \ + (val)-500:(val)+500)/1000)+119),0,255)) +#define TEMP_FROM_REG(val) (((val) - 119) * 1000) + +static inline u8 FAN_TO_REG(long rpm, int div) +{ + long rpmdiv; + if (rpm == 0) + return 0; + rpmdiv = SENSORS_LIMIT(rpm, 1, 1920000) * div; + return SENSORS_LIMIT((960000 + rpmdiv / 2) / rpmdiv, 1, 255); +} +#define FAN_FROM_REG(val,div) ((val)==0 ? 0 : (960000/((val)*(div)))) + +#define IN_TO_REG(val) (SENSORS_LIMIT((((val)+9)/19),0,255)) +#define IN_FROM_REG(val) ((val)*19) + +#define VDD_TO_REG(val) (SENSORS_LIMIT((((val)*4+47)/95),0,255)) +#define VDD_FROM_REG(val) (((val)*95+2)/4) + +#define DIV_TO_REG(val) ((val)==4?2:(val)==2?1:(val)==1?0:3) +#define DIV_FROM_REG(val) (1 << (val)) + +#define BEEP_MASK_TO_REG(val) ((val) & 0x7f & data->alarm_mask) +#define BEEP_MASK_FROM_REG(val) ((val) & 0x7f) + +/* Each client has this additional data */ +struct gl518_data { + struct i2c_client client; + enum chips type; + + struct semaphore update_lock; + char valid; /* !=0 if following fields are valid */ + unsigned long last_updated; /* In jiffies */ + + u8 voltage_in[4]; /* Register values; [0] = VDD */ + u8 voltage_min[4]; /* Register values; [0] = VDD */ + u8 voltage_max[4]; /* Register values; [0] = VDD */ + u8 iter_voltage_in[4]; /* Register values; [0] = VDD */ + u8 fan_in[2]; + u8 fan_min[2]; + u8 fan_div[2]; /* Register encoding, shifted right */ + u8 fan_auto1; /* Boolean */ + u8 temp_in; /* Register values */ + u8 temp_max; /* Register values */ + u8 temp_hyst; /* Register values */ + u8 alarms; /* Register value */ + u8 alarm_mask; /* Register value */ + u8 beep_mask; /* Register value */ + u8 beep_enable; /* Boolean */ +}; + +static int gl518_attach_adapter(struct i2c_adapter *adapter); +static int gl518_detect(struct i2c_adapter *adapter, int address, int kind); +static void gl518_init_client(struct i2c_client *client); +static int gl518_detach_client(struct i2c_client *client); +static int gl518_read_value(struct i2c_client *client, u8 reg); +static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value); +static struct gl518_data *gl518_update_device(struct device *dev); + +/* This is the driver that will be inserted */ +static struct i2c_driver gl518_driver = { + .owner = THIS_MODULE, + .name = "gl518sm", + .id = I2C_DRIVERID_GL518, + .flags = I2C_DF_NOTIFY, + .attach_adapter = gl518_attach_adapter, + .detach_client = gl518_detach_client, +}; + +/* + * Sysfs stuff + */ + +#define show(type, suffix, value) \ +static ssize_t show_##suffix(struct device *dev, char *buf) \ +{ \ + struct gl518_data *data = gl518_update_device(dev); \ + return sprintf(buf, "%d\n", type##_FROM_REG(data->value)); \ +} + +#define show_fan(suffix, value, index) \ +static ssize_t show_##suffix(struct device *dev, char *buf) \ +{ \ + struct gl518_data *data = gl518_update_device(dev); \ + return sprintf(buf, "%d\n", FAN_FROM_REG(data->value[index], \ + DIV_FROM_REG(data->fan_div[index]))); \ +} + +show(TEMP, temp_input1, temp_in); +show(TEMP, temp_max1, temp_max); +show(TEMP, temp_hyst1, temp_hyst); +show(BOOL, fan_auto1, fan_auto1); +show_fan(fan_input1, fan_in, 0); +show_fan(fan_input2, fan_in, 1); +show_fan(fan_min1, fan_min, 0); +show_fan(fan_min2, fan_min, 1); +show(DIV, fan_div1, fan_div[0]); +show(DIV, fan_div2, fan_div[1]); +show(VDD, in_input0, voltage_in[0]); +show(IN, in_input1, voltage_in[1]); +show(IN, in_input2, voltage_in[2]); +show(IN, in_input3, voltage_in[3]); +show(VDD, in_min0, voltage_min[0]); +show(IN, in_min1, voltage_min[1]); +show(IN, in_min2, voltage_min[2]); +show(IN, in_min3, voltage_min[3]); +show(VDD, in_max0, voltage_max[0]); +show(IN, in_max1, voltage_max[1]); +show(IN, in_max2, voltage_max[2]); +show(IN, in_max3, voltage_max[3]); +show(RAW, alarms, alarms); +show(BOOL, beep_enable, beep_enable); +show(BEEP_MASK, beep_mask, beep_mask); + +#define set(type, suffix, value, reg) \ +static ssize_t set_##suffix(struct device *dev, const char *buf, \ + size_t count) \ +{ \ + struct i2c_client *client = to_i2c_client(dev); \ + struct gl518_data *data = i2c_get_clientdata(client); \ + long val = simple_strtol(buf, NULL, 10); \ + \ + down(&data->update_lock); \ + data->value = type##_TO_REG(val); \ + gl518_write_value(client, reg, data->value); \ + up(&data->update_lock); \ + return count; \ +} + +#define set_bits(type, suffix, value, reg, mask, shift) \ +static ssize_t set_##suffix(struct device *dev, const char *buf, \ + size_t count) \ +{ \ + struct i2c_client *client = to_i2c_client(dev); \ + struct gl518_data *data = i2c_get_clientdata(client); \ + int regvalue; \ + unsigned long val = simple_strtoul(buf, NULL, 10); \ + \ + down(&data->update_lock); \ + regvalue = gl518_read_value(client, reg); \ + data->value = type##_TO_REG(val); \ + regvalue = (regvalue & ~mask) | (data->value << shift); \ + gl518_write_value(client, reg, regvalue); \ + up(&data->update_lock); \ + return count; \ +} + +#define set_low(type, suffix, value, reg) \ + set_bits(type, suffix, value, reg, 0x00ff, 0) +#define set_high(type, suffix, value, reg) \ + set_bits(type, suffix, value, reg, 0xff00, 8) + +set(TEMP, temp_max1, temp_max, GL518_REG_TEMP_MAX); +set(TEMP, temp_hyst1, temp_hyst, GL518_REG_TEMP_HYST); +set_bits(BOOL, fan_auto1, fan_auto1, GL518_REG_MISC, 0x08, 3); +set_bits(DIV, fan_div1, fan_div[0], GL518_REG_MISC, 0xc0, 6); +set_bits(DIV, fan_div2, fan_div[1], GL518_REG_MISC, 0x30, 4); +set_low(VDD, in_min0, voltage_min[0], GL518_REG_VDD_LIMIT); +set_low(IN, in_min1, voltage_min[1], GL518_REG_VIN1_LIMIT); +set_low(IN, in_min2, voltage_min[2], GL518_REG_VIN2_LIMIT); +set_low(IN, in_min3, voltage_min[3], GL518_REG_VIN3_LIMIT); +set_high(VDD, in_max0, voltage_max[0], GL518_REG_VDD_LIMIT); +set_high(IN, in_max1, voltage_max[1], GL518_REG_VIN1_LIMIT); +set_high(IN, in_max2, voltage_max[2], GL518_REG_VIN2_LIMIT); +set_high(IN, in_max3, voltage_max[3], GL518_REG_VIN3_LIMIT); +set_bits(BOOL, beep_enable, beep_enable, GL518_REG_CONF, 0x04, 2); +set(BEEP_MASK, beep_mask, beep_mask, GL518_REG_ALARM); + +static ssize_t set_fan_min1(struct device *dev, const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct gl518_data *data = i2c_get_clientdata(client); + int regvalue; + unsigned long val = simple_strtoul(buf, NULL, 10); + + down(&data->update_lock); + regvalue = gl518_read_value(client, GL518_REG_FAN_LIMIT); + data->fan_min[0] = FAN_TO_REG(val, + DIV_FROM_REG(data->fan_div[0])); + regvalue = (regvalue & 0x00ff) | (data->fan_min[0] << 8); + gl518_write_value(client, GL518_REG_FAN_LIMIT, regvalue); + + data->beep_mask = gl518_read_value(client, GL518_REG_ALARM); + if (data->fan_min[0] == 0) + data->alarm_mask &= ~0x20; + else + data->alarm_mask |= 0x20; + data->beep_mask &= data->alarm_mask; + gl518_write_value(client, GL518_REG_ALARM, data->beep_mask); + + up(&data->update_lock); + return count; +} + +static ssize_t set_fan_min2(struct device *dev, const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct gl518_data *data = i2c_get_clientdata(client); + int regvalue; + unsigned long val = simple_strtoul(buf, NULL, 10); + + down(&data->update_lock); + regvalue = gl518_read_value(client, GL518_REG_FAN_LIMIT); + data->fan_min[1] = FAN_TO_REG(val, + DIV_FROM_REG(data->fan_div[1])); + regvalue = (regvalue & 0xff00) | data->fan_min[1]; + gl518_write_value(client, GL518_REG_FAN_LIMIT, regvalue); + + data->beep_mask = gl518_read_value(client, GL518_REG_ALARM); + if (data->fan_min[1] == 0) + data->alarm_mask &= ~0x40; + else + data->alarm_mask |= 0x40; + data->beep_mask &= data->alarm_mask; + gl518_write_value(client, GL518_REG_ALARM, data->beep_mask); + + up(&data->update_lock); + return count; +} + +static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL); +static DEVICE_ATTR(temp1_max, S_IWUSR|S_IRUGO, show_temp_max1, set_temp_max1); +static DEVICE_ATTR(temp1_max_hyst, S_IWUSR|S_IRUGO, + show_temp_hyst1, set_temp_hyst1); +static DEVICE_ATTR(fan1_auto, S_IWUSR|S_IRUGO, show_fan_auto1, set_fan_auto1); +static DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input1, NULL); +static DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input2, NULL); +static DEVICE_ATTR(fan1_min, S_IWUSR|S_IRUGO, show_fan_min1, set_fan_min1); +static DEVICE_ATTR(fan2_min, S_IWUSR|S_IRUGO, show_fan_min2, set_fan_min2); +static DEVICE_ATTR(fan1_div, S_IWUSR|S_IRUGO, show_fan_div1, set_fan_div1); +static DEVICE_ATTR(fan2_div, S_IWUSR|S_IRUGO, show_fan_div2, set_fan_div2); +static DEVICE_ATTR(in0_input, S_IRUGO, show_in_input0, NULL); +static DEVICE_ATTR(in1_input, S_IRUGO, show_in_input1, NULL); +static DEVICE_ATTR(in2_input, S_IRUGO, show_in_input2, NULL); +static DEVICE_ATTR(in3_input, S_IRUGO, show_in_input3, NULL); +static DEVICE_ATTR(in0_min, S_IWUSR|S_IRUGO, show_in_min0, set_in_min0); +static DEVICE_ATTR(in1_min, S_IWUSR|S_IRUGO, show_in_min1, set_in_min1); +static DEVICE_ATTR(in2_min, S_IWUSR|S_IRUGO, show_in_min2, set_in_min2); +static DEVICE_ATTR(in3_min, S_IWUSR|S_IRUGO, show_in_min3, set_in_min3); +static DEVICE_ATTR(in0_max, S_IWUSR|S_IRUGO, show_in_max0, set_in_max0); +static DEVICE_ATTR(in1_max, S_IWUSR|S_IRUGO, show_in_max1, set_in_max1); +static DEVICE_ATTR(in2_max, S_IWUSR|S_IRUGO, show_in_max2, set_in_max2); +static DEVICE_ATTR(in3_max, S_IWUSR|S_IRUGO, show_in_max3, set_in_max3); +static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); +static DEVICE_ATTR(beep_enable, S_IWUSR|S_IRUGO, + show_beep_enable, set_beep_enable); +static DEVICE_ATTR(beep_mask, S_IWUSR|S_IRUGO, + show_beep_mask, set_beep_mask); + +/* + * Real code + */ + +static int gl518_attach_adapter(struct i2c_adapter *adapter) +{ + if (!(adapter->class & I2C_CLASS_HWMON)) + return 0; + return i2c_detect(adapter, &addr_data, gl518_detect); +} + +static int gl518_detect(struct i2c_adapter *adapter, int address, int kind) +{ + int i; + struct i2c_client *new_client; + struct gl518_data *data; + int err = 0; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | + I2C_FUNC_SMBUS_WORD_DATA)) + goto exit; + + /* OK. For now, we presume we have a valid client. We now create the + client structure, even though we cannot fill it completely yet. + But it allows us to access gl518_{read,write}_value. */ + + if (!(data = kmalloc(sizeof(struct gl518_data), GFP_KERNEL))) { + err = -ENOMEM; + goto exit; + } + memset(data, 0, sizeof(struct gl518_data)); + + new_client = &data->client; + i2c_set_clientdata(new_client, data); + + new_client->addr = address; + new_client->adapter = adapter; + new_client->driver = &gl518_driver; + new_client->flags = 0; + + /* Now, we do the remaining detection. */ + + if (kind < 0) { + if ((gl518_read_value(new_client, GL518_REG_CHIP_ID) != 0x80) + || (gl518_read_value(new_client, GL518_REG_CONF) & 0x80)) + goto exit_free; + } + + /* Determine the chip type. */ + if (kind <= 0) { + i = gl518_read_value(new_client, GL518_REG_REVISION); + if (i == 0x00) { + kind = gl518sm_r00; + } else if (i == 0x80) { + kind = gl518sm_r80; + } else { + if (kind <= 0) + dev_info(&adapter->dev, + "Ignoring 'force' parameter for unknown " + "chip at adapter %d, address 0x%02x\n", + i2c_adapter_id(adapter), address); + goto exit_free; + } + } + + /* Fill in the remaining client fields */ + strlcpy(new_client->name, "gl518sm", I2C_NAME_SIZE); + data->type = kind; + data->valid = 0; + init_MUTEX(&data->update_lock); + + /* Tell the I2C layer a new client has arrived */ + if ((err = i2c_attach_client(new_client))) + goto exit_free; + + /* Initialize the GL518SM chip */ + data->alarm_mask = 0xff; + data->voltage_in[0]=data->voltage_in[1]=data->voltage_in[2]=0; + gl518_init_client((struct i2c_client *) new_client); + + /* Register sysfs hooks */ + device_create_file(&new_client->dev, &dev_attr_in0_input); + device_create_file(&new_client->dev, &dev_attr_in1_input); + device_create_file(&new_client->dev, &dev_attr_in2_input); + device_create_file(&new_client->dev, &dev_attr_in3_input); + device_create_file(&new_client->dev, &dev_attr_in0_min); + device_create_file(&new_client->dev, &dev_attr_in1_min); + device_create_file(&new_client->dev, &dev_attr_in2_min); + device_create_file(&new_client->dev, &dev_attr_in3_min); + device_create_file(&new_client->dev, &dev_attr_in0_max); + device_create_file(&new_client->dev, &dev_attr_in1_max); + device_create_file(&new_client->dev, &dev_attr_in2_max); + device_create_file(&new_client->dev, &dev_attr_in3_max); + device_create_file(&new_client->dev, &dev_attr_fan1_auto); + device_create_file(&new_client->dev, &dev_attr_fan1_input); + device_create_file(&new_client->dev, &dev_attr_fan2_input); + device_create_file(&new_client->dev, &dev_attr_fan1_min); + device_create_file(&new_client->dev, &dev_attr_fan2_min); + device_create_file(&new_client->dev, &dev_attr_fan1_div); + device_create_file(&new_client->dev, &dev_attr_fan2_div); + device_create_file(&new_client->dev, &dev_attr_temp1_input); + device_create_file(&new_client->dev, &dev_attr_temp1_max); + device_create_file(&new_client->dev, &dev_attr_temp1_max_hyst); + device_create_file(&new_client->dev, &dev_attr_alarms); + device_create_file(&new_client->dev, &dev_attr_beep_enable); + device_create_file(&new_client->dev, &dev_attr_beep_mask); + + return 0; + +/* OK, this is not exactly good programming practice, usually. But it is + very code-efficient in this case. */ + +exit_free: + kfree(data); +exit: + return err; +} + + +/* Called when we have found a new GL518SM. + Note that we preserve D4:NoFan2 and D2:beep_enable. */ +static void gl518_init_client(struct i2c_client *client) +{ + /* Make sure we leave D7:Reset untouched */ + u8 regvalue = gl518_read_value(client, GL518_REG_CONF) & 0x7f; + + /* Comparator mode (D3=0), standby mode (D6=0) */ + gl518_write_value(client, GL518_REG_CONF, (regvalue &= 0x37)); + + /* Never interrupts */ + gl518_write_value(client, GL518_REG_MASK, 0x00); + + /* Clear status register (D5=1), start (D6=1) */ + gl518_write_value(client, GL518_REG_CONF, 0x20 | regvalue); + gl518_write_value(client, GL518_REG_CONF, 0x40 | regvalue); +} + +static int gl518_detach_client(struct i2c_client *client) +{ + int err; + + if ((err = i2c_detach_client(client))) { + dev_err(&client->dev, "Client deregistration failed, " + "client not detached.\n"); + return err; + } + + kfree(i2c_get_clientdata(client)); + + return 0; +} + +/* Registers 0x07 to 0x0c are word-sized, others are byte-sized + GL518 uses a high-byte first convention, which is exactly opposite to + the usual practice. */ +static int gl518_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); +} + +/* Registers 0x07 to 0x0c are word-sized, others are byte-sized + GL518 uses a high-byte first convention, which is exactly opposite to + the usual practice. */ +static int gl518_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 gl518_data *gl518_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct gl518_data *data = i2c_get_clientdata(client); + int val; + + down(&data->update_lock); + + if (time_after(jiffies, data->last_updated + HZ + HZ / 2) + || !data->valid) { + dev_dbg(&client->dev, "Starting gl518 update\n"); + + data->alarms = gl518_read_value(client, GL518_REG_INT); + data->beep_mask = gl518_read_value(client, GL518_REG_ALARM); + + val = gl518_read_value(client, GL518_REG_VDD_LIMIT); + data->voltage_min[0] = val & 0xff; + data->voltage_max[0] = (val >> 8) & 0xff; + val = gl518_read_value(client, GL518_REG_VIN1_LIMIT); + data->voltage_min[1] = val & 0xff; + data->voltage_max[1] = (val >> 8) & 0xff; + val = gl518_read_value(client, GL518_REG_VIN2_LIMIT); + data->voltage_min[2] = val & 0xff; + data->voltage_max[2] = (val >> 8) & 0xff; + val = gl518_read_value(client, GL518_REG_VIN3_LIMIT); + data->voltage_min[3] = val & 0xff; + data->voltage_max[3] = (val >> 8) & 0xff; + + val = gl518_read_value(client, GL518_REG_FAN_COUNT); + data->fan_in[0] = (val >> 8) & 0xff; + data->fan_in[1] = val & 0xff; + + val = gl518_read_value(client, GL518_REG_FAN_LIMIT); + data->fan_min[0] = (val >> 8) & 0xff; + data->fan_min[1] = val & 0xff; + + data->temp_in = gl518_read_value(client, GL518_REG_TEMP_IN); + data->temp_max = + gl518_read_value(client, GL518_REG_TEMP_MAX); + data->temp_hyst = + gl518_read_value(client, GL518_REG_TEMP_HYST); + + val = gl518_read_value(client, GL518_REG_MISC); + data->fan_div[0] = (val >> 6) & 0x03; + data->fan_div[1] = (val >> 4) & 0x03; + data->fan_auto1 = (val >> 3) & 0x01; + + data->alarms &= data->alarm_mask; + + val = gl518_read_value(client, GL518_REG_CONF); + data->beep_enable = (val >> 2) & 1; + + if (data->type != gl518sm_r00) { + data->voltage_in[0] = + gl518_read_value(client, GL518_REG_VDD); + data->voltage_in[1] = + gl518_read_value(client, GL518_REG_VIN1); + data->voltage_in[2] = + gl518_read_value(client, GL518_REG_VIN2); + } + data->voltage_in[3] = + gl518_read_value(client, GL518_REG_VIN3); + + data->last_updated = jiffies; + data->valid = 1; + } + + up(&data->update_lock); + + return data; +} + +static int __init sensors_gl518sm_init(void) +{ + return i2c_add_driver(&gl518_driver); +} + +static void __exit sensors_gl518sm_exit(void) +{ + i2c_del_driver(&gl518_driver); +} + +MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, " + "Kyosti Malkki <kmalkki@cc.hut.fi> and " + "Hong-Gunn Chew <hglinux@gunnet.org>"); +MODULE_DESCRIPTION("GL518SM driver"); +MODULE_LICENSE("GPL"); + +module_init(sensors_gl518sm_init); +module_exit(sensors_gl518sm_exit); |