diff options
Diffstat (limited to 'drivers/i2c/chips/gl520sm.c')
| -rw-r--r-- | drivers/i2c/chips/gl520sm.c | 769 |
1 files changed, 0 insertions, 769 deletions
diff --git a/drivers/i2c/chips/gl520sm.c b/drivers/i2c/chips/gl520sm.c deleted file mode 100644 index a13a504f5bf..00000000000 --- a/drivers/i2c/chips/gl520sm.c +++ /dev/null @@ -1,769 +0,0 @@ -/* - gl520sm.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring - Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>, - Kyösti Mälkki <kmalkki@cc.hut.fi> - 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> -#include <linux/i2c.h> -#include <linux/i2c-sensor.h> -#include <linux/i2c-vid.h> - -/* 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 */ -static unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END }; -static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END }; - -/* Insmod parameters */ -SENSORS_INSMOD_1(gl520sm); - -/* Many GL520 constants specified below -One of the inputs can be configured as either temp or voltage. -That's why _TEMP2 and _IN4 access the same register -*/ - -/* 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 - -#define GL520_REG_IN0_INPUT 0x15 -#define GL520_REG_IN0_LIMIT 0x0c -#define GL520_REG_IN0_MIN GL520_REG_IN0_LIMIT -#define GL520_REG_IN0_MAX GL520_REG_IN0_LIMIT - -#define GL520_REG_IN1_INPUT 0x14 -#define GL520_REG_IN1_LIMIT 0x09 -#define GL520_REG_IN1_MIN GL520_REG_IN1_LIMIT -#define GL520_REG_IN1_MAX GL520_REG_IN1_LIMIT - -#define GL520_REG_IN2_INPUT 0x13 -#define GL520_REG_IN2_LIMIT 0x0a -#define GL520_REG_IN2_MIN GL520_REG_IN2_LIMIT -#define GL520_REG_IN2_MAX GL520_REG_IN2_LIMIT - -#define GL520_REG_IN3_INPUT 0x0d -#define GL520_REG_IN3_LIMIT 0x0b -#define GL520_REG_IN3_MIN GL520_REG_IN3_LIMIT -#define GL520_REG_IN3_MAX GL520_REG_IN3_LIMIT - -#define GL520_REG_IN4_INPUT 0x0e -#define GL520_REG_IN4_MAX 0x17 -#define GL520_REG_IN4_MIN 0x18 - -#define GL520_REG_TEMP1_INPUT 0x04 -#define GL520_REG_TEMP1_MAX 0x05 -#define GL520_REG_TEMP1_MAX_HYST 0x06 - -#define GL520_REG_TEMP2_INPUT 0x0e -#define GL520_REG_TEMP2_MAX 0x17 -#define GL520_REG_TEMP2_MAX_HYST 0x18 - -#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 - */ - -static int gl520_attach_adapter(struct i2c_adapter *adapter); -static int gl520_detect(struct i2c_adapter *adapter, int address, int kind); -static void gl520_init_client(struct i2c_client *client); -static int gl520_detach_client(struct i2c_client *client); -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 */ -static struct i2c_driver gl520_driver = { - .owner = THIS_MODULE, - .name = "gl520sm", - .id = I2C_DRIVERID_GL520, - .flags = I2C_DF_NOTIFY, - .attach_adapter = gl520_attach_adapter, - .detach_client = gl520_detach_client, -}; - -/* Client data */ -struct gl520_data { - struct i2c_client client; - struct semaphore update_lock; - 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 - */ - -#define sysfs_r(type, n, item, reg) \ -static ssize_t get_##type##item (struct gl520_data *, char *, int); \ -static ssize_t get_##type##n##item (struct device *, struct device_attribute *attr, char *); \ -static ssize_t get_##type##n##item (struct device *dev, struct device_attribute *attr, char *buf) \ -{ \ - struct gl520_data *data = gl520_update_device(dev); \ - return get_##type##item(data, buf, (n)); \ -} - -#define sysfs_w(type, n, item, reg) \ -static ssize_t set_##type##item (struct i2c_client *, struct gl520_data *, const char *, size_t, int, int); \ -static ssize_t set_##type##n##item (struct device *, struct device_attribute *attr, const char *, size_t); \ -static ssize_t set_##type##n##item (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); \ - return set_##type##item(client, data, buf, count, (n), reg); \ -} - -#define sysfs_rw_n(type, n, item, reg) \ -sysfs_r(type, n, item, reg) \ -sysfs_w(type, n, item, reg) \ -static DEVICE_ATTR(type##n##item, S_IRUGO | S_IWUSR, get_##type##n##item, set_##type##n##item); - -#define sysfs_ro_n(type, n, item, reg) \ -sysfs_r(type, n, item, reg) \ -static DEVICE_ATTR(type##n##item, S_IRUGO, get_##type##n##item, NULL); - -#define sysfs_rw(type, item, reg) \ -sysfs_r(type, 0, item, reg) \ -sysfs_w(type, 0, item, reg) \ -static DEVICE_ATTR(type##item, S_IRUGO | S_IWUSR, get_##type##0##item, set_##type##0##item); - -#define sysfs_ro(type, item, reg) \ -sysfs_r(type, 0, item, reg) \ -static DEVICE_ATTR(type##item, S_IRUGO, get_##type##0##item, NULL); - - -#define sysfs_vid(n) \ -sysfs_ro_n(cpu, n, _vid, GL520_REG_VID_INPUT) - -#define device_create_file_vid(client, n) \ -device_create_file(&client->dev, &dev_attr_cpu##n##_vid) - -#define sysfs_in(n) \ -sysfs_ro_n(in, n, _input, GL520_REG_IN##n##INPUT) \ -sysfs_rw_n(in, n, _min, GL520_REG_IN##n##_MIN) \ -sysfs_rw_n(in, n, _max, GL520_REG_IN##n##_MAX) \ - -#define device_create_file_in(client, n) \ -({device_create_file(&client->dev, &dev_attr_in##n##_input); \ -device_create_file(&client->dev, &dev_attr_in##n##_min); \ -device_create_file(&client->dev, &dev_attr_in##n##_max);}) - -#define sysfs_fan(n) \ -sysfs_ro_n(fan, n, _input, GL520_REG_FAN_INPUT) \ -sysfs_rw_n(fan, n, _min, GL520_REG_FAN_MIN) \ -sysfs_rw_n(fan, n, _div, GL520_REG_FAN_DIV) - -#define device_create_file_fan(client, n) \ -({device_create_file(&client->dev, &dev_attr_fan##n##_input); \ -device_create_file(&client->dev, &dev_attr_fan##n##_min); \ -device_create_file(&client->dev, &dev_attr_fan##n##_div);}) - -#define sysfs_fan_off(n) \ -sysfs_rw_n(fan, n, _off, GL520_REG_FAN_OFF) \ - -#define device_create_file_fan_off(client, n) \ -device_create_file(&client->dev, &dev_attr_fan##n##_off) - -#define sysfs_temp(n) \ -sysfs_ro_n(temp, n, _input, GL520_REG_TEMP##n##_INPUT) \ -sysfs_rw_n(temp, n, _max, GL520_REG_TEMP##n##_MAX) \ -sysfs_rw_n(temp, n, _max_hyst, GL520_REG_TEMP##n##_MAX_HYST) - -#define device_create_file_temp(client, n) \ -({device_create_file(&client->dev, &dev_attr_temp##n##_input); \ -device_create_file(&client->dev, &dev_attr_temp##n##_max); \ -device_create_file(&client->dev, &dev_attr_temp##n##_max_hyst);}) - -#define sysfs_alarms() \ -sysfs_ro(alarms, , GL520_REG_ALARMS) \ -sysfs_rw(beep_enable, , GL520_REG_BEEP_ENABLE) \ -sysfs_rw(beep_mask, , GL520_REG_BEEP_MASK) - -#define device_create_file_alarms(client) \ -({device_create_file(&client->dev, &dev_attr_alarms); \ -device_create_file(&client->dev, &dev_attr_beep_enable); \ -device_create_file(&client->dev, &dev_attr_beep_mask);}) - - -sysfs_vid(0) - -sysfs_in(0) -sysfs_in(1) -sysfs_in(2) -sysfs_in(3) -sysfs_in(4) - -sysfs_fan(1) -sysfs_fan(2) -sysfs_fan_off(1) - -sysfs_temp(1) -sysfs_temp(2) - -sysfs_alarms() - - -static ssize_t get_cpu_vid(struct gl520_data *data, char *buf, int n) -{ - return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm)); -} - -#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)) - -static ssize_t get_in_input(struct gl520_data *data, char *buf, int n) -{ - u8 r = data->in_input[n]; - - if (n == 0) - return sprintf(buf, "%d\n", VDD_FROM_REG(r)); - else - return sprintf(buf, "%d\n", IN_FROM_REG(r)); -} - -static ssize_t get_in_min(struct gl520_data *data, char *buf, int n) -{ - u8 r = data->in_min[n]; - - if (n == 0) - return sprintf(buf, "%d\n", VDD_FROM_REG(r)); - else - return sprintf(buf, "%d\n", IN_FROM_REG(r)); -} - -static ssize_t get_in_max(struct gl520_data *data, char *buf, int n) -{ - u8 r = data->in_max[n]; - - if (n == 0) - return sprintf(buf, "%d\n", VDD_FROM_REG(r)); - else - return sprintf(buf, "%d\n", IN_FROM_REG(r)); -} - -static ssize_t set_in_min(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg) -{ - long v = simple_strtol(buf, NULL, 10); - u8 r; - - down(&data->update_lock); - - if (n == 0) - r = VDD_TO_REG(v); - else - r = IN_TO_REG(v); - - data->in_min[n] = r; - - if (n < 4) - gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0xff) | r); - else - gl520_write_value(client, reg, r); - - up(&data->update_lock); - return count; -} - -static ssize_t set_in_max(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg) -{ - long v = simple_strtol(buf, NULL, 10); - u8 r; - - if (n == 0) - r = VDD_TO_REG(v); - else - r = IN_TO_REG(v); - - down(&data->update_lock); - - data->in_max[n] = r; - - if (n < 4) - gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0xff00) | (r << 8)); - else - gl520_write_value(client, reg, r); - - up(&data->update_lock); - return count; -} - -#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)); - -static ssize_t get_fan_input(struct gl520_data *data, char *buf, int n) -{ - return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_input[n - 1], data->fan_div[n - 1])); -} - -static ssize_t get_fan_min(struct gl520_data *data, char *buf, int n) -{ - return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[n - 1], data->fan_div[n - 1])); -} - -static ssize_t get_fan_div(struct gl520_data *data, char *buf, int n) -{ - return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[n - 1])); -} - -static ssize_t get_fan_off(struct gl520_data *data, char *buf, int n) -{ - return sprintf(buf, "%d\n", data->fan_off); -} - -static ssize_t set_fan_min(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg) -{ - unsigned long v = simple_strtoul(buf, NULL, 10); - u8 r; - - down(&data->update_lock); - r = FAN_TO_REG(v, data->fan_div[n - 1]); - data->fan_min[n - 1] = r; - - if (n == 1) - gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0xff00) | (r << 8)); - else - gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0xff) | r); - - data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); - if (data->fan_min[n - 1] == 0) - data->alarm_mask &= (n == 1) ? ~0x20 : ~0x40; - else - data->alarm_mask |= (n == 1) ? 0x20 : 0x40; - data->beep_mask &= data->alarm_mask; - gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); - - up(&data->update_lock); - return count; -} - -static ssize_t set_fan_div(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg) -{ - 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!\n", v); - return -EINVAL; - } - - down(&data->update_lock); - data->fan_div[n - 1] = r; - - if (n == 1) - gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0xc0) | (r << 6)); - else - gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0x30) | (r << 4)); - - up(&data->update_lock); - return count; -} - -static ssize_t set_fan_off(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg) -{ - u8 r = simple_strtoul(buf, NULL, 10)?1:0; - - down(&data->update_lock); - data->fan_off = r; - gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0x0c) | (r << 2)); - up(&data->update_lock); - return count; -} - -#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)) - -static ssize_t get_temp_input(struct gl520_data *data, char *buf, int n) -{ - return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_input[n - 1])); -} - -static ssize_t get_temp_max(struct gl520_data *data, char *buf, int n) -{ - return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[n - 1])); -} - -static ssize_t get_temp_max_hyst(struct gl520_data *data, char *buf, int n) -{ - return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[n - 1])); -} - -static ssize_t set_temp_max(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg) -{ - long v = simple_strtol(buf, NULL, 10); - - down(&data->update_lock); - data->temp_max[n - 1] = TEMP_TO_REG(v);; - gl520_write_value(client, reg, data->temp_max[n - 1]); - up(&data->update_lock); - return count; -} - -static ssize_t set_temp_max_hyst(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg) -{ - long v = simple_strtol(buf, NULL, 10); - - down(&data->update_lock); - data->temp_max_hyst[n - 1] = TEMP_TO_REG(v); - gl520_write_value(client, reg, data->temp_max_hyst[n - 1]); - up(&data->update_lock); - return count; -} - -static ssize_t get_alarms(struct gl520_data *data, char *buf, int n) -{ - return sprintf(buf, "%d\n", data->alarms); -} - -static ssize_t get_beep_enable(struct gl520_data *data, char *buf, int n) -{ - return sprintf(buf, "%d\n", data->beep_enable); -} - -static ssize_t get_beep_mask(struct gl520_data *data, char *buf, int n) -{ - return sprintf(buf, "%d\n", data->beep_mask); -} - -static ssize_t set_beep_enable(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg) -{ - u8 r = simple_strtoul(buf, NULL, 10)?0:1; - - down(&data->update_lock); - data->beep_enable = !r; - gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0x04) | (r << 2)); - up(&data->update_lock); - return count; -} - -static ssize_t set_beep_mask(struct i2c_client *client, struct gl520_data *data, const char *buf, size_t count, int n, int reg) -{ - u8 r = simple_strtoul(buf, NULL, 10); - - down(&data->update_lock); - r &= data->alarm_mask; - data->beep_mask = r; - gl520_write_value(client, reg, r); - up(&data->update_lock); - return count; -} - - -/* - * Real code - */ - -static int gl520_attach_adapter(struct i2c_adapter *adapter) -{ - if (!(adapter->class & I2C_CLASS_HWMON)) - return 0; - return i2c_detect(adapter, &addr_data, gl520_detect); -} - -static int gl520_detect(struct i2c_adapter *adapter, int address, int kind) -{ - struct i2c_client *new_client; - struct gl520_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 gl520_{read,write}_value. */ - - if (!(data = kmalloc(sizeof(struct gl520_data), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; - } - memset(data, 0, sizeof(struct gl520_data)); - - new_client = &data->client; - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &gl520_driver; - new_client->flags = 0; - - /* Determine the chip type. */ - if (kind < 0) { - if ((gl520_read_value(new_client, GL520_REG_CHIP_ID) != 0x20) || - ((gl520_read_value(new_client, GL520_REG_REVISION) & 0x7f) != 0x00) || - ((gl520_read_value(new_client, GL520_REG_CONF) & 0x80) != 0x00)) { - dev_dbg(&new_client->dev, "Unknown chip type, skipping\n"); - goto exit_free; - } - } - - /* Fill in the remaining client fields */ - strlcpy(new_client->name, "gl520sm", I2C_NAME_SIZE); - 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 GL520SM chip */ - gl520_init_client(new_client); - - /* Register sysfs hooks */ - device_create_file_vid(new_client, 0); - - device_create_file_in(new_client, 0); - device_create_file_in(new_client, 1); - device_create_file_in(new_client, 2); - device_create_file_in(new_client, 3); - if (!data->two_temps) - device_create_file_in(new_client, 4); - - device_create_file_fan(new_client, 1); - device_create_file_fan(new_client, 2); - device_create_file_fan_off(new_client, 1); - - device_create_file_temp(new_client, 1); - if (data->two_temps) - device_create_file_temp(new_client, 2); - - device_create_file_alarms(new_client); - - return 0; - -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; - data->vrm = i2c_which_vrm(); - - 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); -} - -static int gl520_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 - 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); - int val; - - down(&data->update_lock); - - if ((jiffies - data->last_updated > 2 * HZ) || - (jiffies < data->last_updated) || !data->valid) { - - dev_dbg(&client->dev, "Starting gl520sm update\n"); - - 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; - - val = gl520_read_value(client, GL520_REG_IN0_LIMIT); - data->in_min[0] = val & 0xff; - data->in_max[0] = (val >> 8) & 0xff; - val = gl520_read_value(client, GL520_REG_IN1_LIMIT); - data->in_min[1] = val & 0xff; - data->in_max[1] = (val >> 8) & 0xff; - val = gl520_read_value(client, GL520_REG_IN2_LIMIT); - data->in_min[2] = val & 0xff; - data->in_max[2] = (val >> 8) & 0xff; - val = gl520_read_value(client, GL520_REG_IN3_LIMIT); - data->in_min[3] = val & 0xff; - data->in_max[3] = (val >> 8) & 0xff; - - 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; - - data->temp_input[0] = gl520_read_value(client, GL520_REG_TEMP1_INPUT); - data->temp_max[0] = gl520_read_value(client, GL520_REG_TEMP1_MAX); - data->temp_max_hyst[0] = gl520_read_value(client, GL520_REG_TEMP1_MAX_HYST); - - 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); - - data->in_input[0] = gl520_read_value(client, GL520_REG_IN0_INPUT); - data->in_input[1] = gl520_read_value(client, GL520_REG_IN1_INPUT); - data->in_input[2] = gl520_read_value(client, GL520_REG_IN2_INPUT); - data->in_input[3] = gl520_read_value(client, GL520_REG_IN3_INPUT); - - /* Temp1 and Vin4 are the same input */ - if (data->two_temps) { - data->temp_input[1] = gl520_read_value(client, GL520_REG_TEMP2_INPUT); - data->temp_max[1] = gl520_read_value(client, GL520_REG_TEMP2_MAX); - data->temp_max_hyst[1] = gl520_read_value(client, GL520_REG_TEMP2_MAX_HYST); - } else { - data->in_input[4] = gl520_read_value(client, GL520_REG_IN4_INPUT); - data->in_min[4] = gl520_read_value(client, GL520_REG_IN4_MIN); - data->in_max[4] = gl520_read_value(client, GL520_REG_IN4_MAX); - } - - data->last_updated = jiffies; - data->valid = 1; - } - - up(&data->update_lock); - - 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>, " - "Kyösti Mälkki <kmalkki@cc.hut.fi>, " - "Maarten Deprez <maartendeprez@users.sourceforge.net>"); -MODULE_DESCRIPTION("GL520SM driver"); -MODULE_LICENSE("GPL"); - -module_init(sensors_gl520sm_init); -module_exit(sensors_gl520sm_exit); |