diff options
Diffstat (limited to 'drivers/i2c/chips/lm87.c')
| -rw-r--r-- | drivers/i2c/chips/lm87.c | 828 |
1 files changed, 0 insertions, 828 deletions
diff --git a/drivers/i2c/chips/lm87.c b/drivers/i2c/chips/lm87.c deleted file mode 100644 index 1921ed1af18..00000000000 --- a/drivers/i2c/chips/lm87.c +++ /dev/null @@ -1,828 +0,0 @@ -/* - * lm87.c - * - * Copyright (C) 2000 Frodo Looijaard <frodol@dds.nl> - * Philip Edelbrock <phil@netroedge.com> - * Stephen Rousset <stephen.rousset@rocketlogix.com> - * Dan Eaton <dan.eaton@rocketlogix.com> - * Copyright (C) 2004 Jean Delvare <khali@linux-fr.org> - * - * Original port to Linux 2.6 by Jeff Oliver. - * - * The LM87 is a sensor chip made by National Semiconductor. It monitors up - * to 8 voltages (including its own power source), up to three temperatures - * (its own plus up to two external ones) and up to two fans. The default - * configuration is 6 voltages, two temperatures and two fans (see below). - * Voltages are scaled internally with ratios such that the nominal value of - * each voltage correspond to a register value of 192 (which means a - * resolution of about 0.5% of the nominal value). Temperature values are - * reported with a 1 deg resolution and a 3-4 deg accuracy. Complete - * datasheet can be obtained from National's website at: - * http://www.national.com/pf/LM/LM87.html - * - * Some functions share pins, so not all functions are available at the same - * time. Which are depends on the hardware setup. This driver assumes that - * the BIOS configured the chip correctly. In that respect, it differs from - * the original driver (from lm_sensors for Linux 2.4), which would force the - * LM87 to an arbitrary, compile-time chosen mode, regardless of the actual - * chipset wiring. - * For reference, here is the list of exclusive functions: - * - in0+in5 (default) or temp3 - * - fan1 (default) or in6 - * - fan2 (default) or in7 - * - VID lines (default) or IRQ lines (not handled by this driver) - * - * The LM87 additionally features an analog output, supposedly usable to - * control the speed of a fan. All new chips use pulse width modulation - * instead. The LM87 is the only hardware monitoring chipset I know of - * which uses amplitude modulation. Be careful when using this feature. - * - * 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/jiffies.h> -#include <linux/i2c.h> -#include <linux/i2c-sensor.h> -#include <linux/i2c-vid.h> - -/* - * Addresses to scan - * LM87 has three possible addresses: 0x2c, 0x2d and 0x2e. - */ - -static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; -static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END }; - -/* - * Insmod parameters - */ - -SENSORS_INSMOD_1(lm87); - -/* - * The LM87 registers - */ - -/* nr in 0..5 */ -#define LM87_REG_IN(nr) (0x20 + (nr)) -#define LM87_REG_IN_MAX(nr) (0x2B + (nr) * 2) -#define LM87_REG_IN_MIN(nr) (0x2C + (nr) * 2) -/* nr in 0..1 */ -#define LM87_REG_AIN(nr) (0x28 + (nr)) -#define LM87_REG_AIN_MIN(nr) (0x1A + (nr)) -#define LM87_REG_AIN_MAX(nr) (0x3B + (nr)) - -static u8 LM87_REG_TEMP[3] = { 0x27, 0x26, 0x20 }; -static u8 LM87_REG_TEMP_HIGH[3] = { 0x39, 0x37, 0x2B }; -static u8 LM87_REG_TEMP_LOW[3] = { 0x3A, 0x38, 0x2C }; - -#define LM87_REG_TEMP_HW_INT_LOCK 0x13 -#define LM87_REG_TEMP_HW_EXT_LOCK 0x14 -#define LM87_REG_TEMP_HW_INT 0x17 -#define LM87_REG_TEMP_HW_EXT 0x18 - -/* nr in 0..1 */ -#define LM87_REG_FAN(nr) (0x28 + (nr)) -#define LM87_REG_FAN_MIN(nr) (0x3B + (nr)) -#define LM87_REG_AOUT 0x19 - -#define LM87_REG_CONFIG 0x40 -#define LM87_REG_CHANNEL_MODE 0x16 -#define LM87_REG_VID_FAN_DIV 0x47 -#define LM87_REG_VID4 0x49 - -#define LM87_REG_ALARMS1 0x41 -#define LM87_REG_ALARMS2 0x42 - -#define LM87_REG_COMPANY_ID 0x3E -#define LM87_REG_REVISION 0x3F - -/* - * Conversions and various macros - * The LM87 uses signed 8-bit values for temperatures. - */ - -#define IN_FROM_REG(reg,scale) (((reg) * (scale) + 96) / 192) -#define IN_TO_REG(val,scale) ((val) <= 0 ? 0 : \ - (val) * 192 >= (scale) * 255 ? 255 : \ - ((val) * 192 + (scale)/2) / (scale)) - -#define TEMP_FROM_REG(reg) ((reg) * 1000) -#define TEMP_TO_REG(val) ((val) <= -127500 ? -128 : \ - (val) >= 126500 ? 127 : \ - (((val) < 0 ? (val)-500 : (val)+500) / 1000)) - -#define FAN_FROM_REG(reg,div) ((reg) == 255 || (reg) == 0 ? 0 : \ - 1350000 + (reg)*(div) / 2) / ((reg)*(div)) -#define FAN_TO_REG(val,div) ((val)*(div) * 255 <= 1350000 ? 255 : \ - (1350000 + (val)*(div) / 2) / ((val)*(div))) - -#define FAN_DIV_FROM_REG(reg) (1 << (reg)) - -/* analog out is 9.80mV/LSB */ -#define AOUT_FROM_REG(reg) (((reg) * 98 + 5) / 10) -#define AOUT_TO_REG(val) ((val) <= 0 ? 0 : \ - (val) >= 2500 ? 255 : \ - ((val) * 10 + 49) / 98) - -/* nr in 0..1 */ -#define CHAN_NO_FAN(nr) (1 << (nr)) -#define CHAN_TEMP3 (1 << 2) -#define CHAN_VCC_5V (1 << 3) -#define CHAN_NO_VID (1 << 8) - -/* - * Functions declaration - */ - -static int lm87_attach_adapter(struct i2c_adapter *adapter); -static int lm87_detect(struct i2c_adapter *adapter, int address, int kind); -static void lm87_init_client(struct i2c_client *client); -static int lm87_detach_client(struct i2c_client *client); -static struct lm87_data *lm87_update_device(struct device *dev); - -/* - * Driver data (common to all clients) - */ - -static struct i2c_driver lm87_driver = { - .owner = THIS_MODULE, - .name = "lm87", - .id = I2C_DRIVERID_LM87, - .flags = I2C_DF_NOTIFY, - .attach_adapter = lm87_attach_adapter, - .detach_client = lm87_detach_client, -}; - -/* - * Client data (each client gets its own) - */ - -struct lm87_data { - struct i2c_client client; - struct semaphore update_lock; - char valid; /* zero until following fields are valid */ - unsigned long last_updated; /* In jiffies */ - - u8 channel; /* register value */ - - u8 in[8]; /* register value */ - u8 in_max[8]; /* register value */ - u8 in_min[8]; /* register value */ - u16 in_scale[8]; - - s8 temp[3]; /* register value */ - s8 temp_high[3]; /* register value */ - s8 temp_low[3]; /* register value */ - s8 temp_crit_int; /* min of two register values */ - s8 temp_crit_ext; /* min of two register values */ - - u8 fan[2]; /* register value */ - u8 fan_min[2]; /* register value */ - u8 fan_div[2]; /* register value, shifted right */ - u8 aout; /* register value */ - - u16 alarms; /* register values, combined */ - u8 vid; /* register values, combined */ - u8 vrm; -}; - -/* - * Sysfs stuff - */ - -static inline int lm87_read_value(struct i2c_client *client, u8 reg) -{ - return i2c_smbus_read_byte_data(client, reg); -} - -static inline int lm87_write_value(struct i2c_client *client, u8 reg, u8 value) -{ - return i2c_smbus_write_byte_data(client, reg, value); -} - -#define show_in(offset) \ -static ssize_t show_in##offset##_input(struct device *dev, struct device_attribute *attr, char *buf) \ -{ \ - struct lm87_data *data = lm87_update_device(dev); \ - return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset], \ - data->in_scale[offset])); \ -} \ -static ssize_t show_in##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \ -{ \ - struct lm87_data *data = lm87_update_device(dev); \ - return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset], \ - data->in_scale[offset])); \ -} \ -static ssize_t show_in##offset##_max(struct device *dev, struct device_attribute *attr, char *buf) \ -{ \ - struct lm87_data *data = lm87_update_device(dev); \ - return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset], \ - data->in_scale[offset])); \ -} \ -static DEVICE_ATTR(in##offset##_input, S_IRUGO, \ - show_in##offset##_input, NULL); -show_in(0); -show_in(1); -show_in(2); -show_in(3); -show_in(4); -show_in(5); -show_in(6); -show_in(7); - -static void set_in_min(struct device *dev, const char *buf, int nr) -{ - struct i2c_client *client = to_i2c_client(dev); - struct lm87_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); - - down(&data->update_lock); - data->in_min[nr] = IN_TO_REG(val, data->in_scale[nr]); - lm87_write_value(client, nr<6 ? LM87_REG_IN_MIN(nr) : - LM87_REG_AIN_MIN(nr-6), data->in_min[nr]); - up(&data->update_lock); -} - -static void set_in_max(struct device *dev, const char *buf, int nr) -{ - struct i2c_client *client = to_i2c_client(dev); - struct lm87_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); - - down(&data->update_lock); - data->in_max[nr] = IN_TO_REG(val, data->in_scale[nr]); - lm87_write_value(client, nr<6 ? LM87_REG_IN_MAX(nr) : - LM87_REG_AIN_MAX(nr-6), data->in_max[nr]); - up(&data->update_lock); -} - -#define set_in(offset) \ -static ssize_t set_in##offset##_min(struct device *dev, struct device_attribute *attr, \ - const char *buf, size_t count) \ -{ \ - set_in_min(dev, buf, offset); \ - return count; \ -} \ -static ssize_t set_in##offset##_max(struct device *dev, struct device_attribute *attr, \ - const char *buf, size_t count) \ -{ \ - set_in_max(dev, buf, offset); \ - return count; \ -} \ -static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ - show_in##offset##_min, set_in##offset##_min); \ -static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ - show_in##offset##_max, set_in##offset##_max); -set_in(0); -set_in(1); -set_in(2); -set_in(3); -set_in(4); -set_in(5); -set_in(6); -set_in(7); - -#define show_temp(offset) \ -static ssize_t show_temp##offset##_input(struct device *dev, struct device_attribute *attr, char *buf) \ -{ \ - struct lm87_data *data = lm87_update_device(dev); \ - return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[offset-1])); \ -} \ -static ssize_t show_temp##offset##_low(struct device *dev, struct device_attribute *attr, char *buf) \ -{ \ - struct lm87_data *data = lm87_update_device(dev); \ - return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[offset-1])); \ -} \ -static ssize_t show_temp##offset##_high(struct device *dev, struct device_attribute *attr, char *buf) \ -{ \ - struct lm87_data *data = lm87_update_device(dev); \ - return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[offset-1])); \ -}\ -static DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ - show_temp##offset##_input, NULL); -show_temp(1); -show_temp(2); -show_temp(3); - -static void set_temp_low(struct device *dev, const char *buf, int nr) -{ - struct i2c_client *client = to_i2c_client(dev); - struct lm87_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); - - down(&data->update_lock); - data->temp_low[nr] = TEMP_TO_REG(val); - lm87_write_value(client, LM87_REG_TEMP_LOW[nr], data->temp_low[nr]); - up(&data->update_lock); -} - -static void set_temp_high(struct device *dev, const char *buf, int nr) -{ - struct i2c_client *client = to_i2c_client(dev); - struct lm87_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); - - down(&data->update_lock); - data->temp_high[nr] = TEMP_TO_REG(val); - lm87_write_value(client, LM87_REG_TEMP_HIGH[nr], data->temp_high[nr]); - up(&data->update_lock); -} - -#define set_temp(offset) \ -static ssize_t set_temp##offset##_low(struct device *dev, struct device_attribute *attr, \ - const char *buf, size_t count) \ -{ \ - set_temp_low(dev, buf, offset-1); \ - return count; \ -} \ -static ssize_t set_temp##offset##_high(struct device *dev, struct device_attribute *attr, \ - const char *buf, size_t count) \ -{ \ - set_temp_high(dev, buf, offset-1); \ - return count; \ -} \ -static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ - show_temp##offset##_high, set_temp##offset##_high); \ -static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ - show_temp##offset##_low, set_temp##offset##_low); -set_temp(1); -set_temp(2); -set_temp(3); - -static ssize_t show_temp_crit_int(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct lm87_data *data = lm87_update_device(dev); - return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit_int)); -} - -static ssize_t show_temp_crit_ext(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct lm87_data *data = lm87_update_device(dev); - return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit_ext)); -} - -static DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp_crit_int, NULL); -static DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp_crit_ext, NULL); -static DEVICE_ATTR(temp3_crit, S_IRUGO, show_temp_crit_ext, NULL); - -#define show_fan(offset) \ -static ssize_t show_fan##offset##_input(struct device *dev, struct device_attribute *attr, char *buf) \ -{ \ - struct lm87_data *data = lm87_update_device(dev); \ - return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[offset-1], \ - FAN_DIV_FROM_REG(data->fan_div[offset-1]))); \ -} \ -static ssize_t show_fan##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \ -{ \ - struct lm87_data *data = lm87_update_device(dev); \ - return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[offset-1], \ - FAN_DIV_FROM_REG(data->fan_div[offset-1]))); \ -} \ -static ssize_t show_fan##offset##_div(struct device *dev, struct device_attribute *attr, char *buf) \ -{ \ - struct lm87_data *data = lm87_update_device(dev); \ - return sprintf(buf, "%d\n", FAN_DIV_FROM_REG(data->fan_div[offset-1])); \ -} \ -static DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ - show_fan##offset##_input, NULL); -show_fan(1); -show_fan(2); - -static void set_fan_min(struct device *dev, const char *buf, int nr) -{ - struct i2c_client *client = to_i2c_client(dev); - struct lm87_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); - - down(&data->update_lock); - data->fan_min[nr] = FAN_TO_REG(val, - FAN_DIV_FROM_REG(data->fan_div[nr])); - lm87_write_value(client, LM87_REG_FAN_MIN(nr), data->fan_min[nr]); - up(&data->update_lock); -} - -/* Note: we save and restore the fan minimum here, because its value is - determined in part by the fan clock divider. This follows the principle - of least suprise; the user doesn't expect the fan minimum to change just - because the divider changed. */ -static ssize_t set_fan_div(struct device *dev, const char *buf, - size_t count, int nr) -{ - struct i2c_client *client = to_i2c_client(dev); - struct lm87_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); - unsigned long min; - u8 reg; - - down(&data->update_lock); - min = FAN_FROM_REG(data->fan_min[nr], - FAN_DIV_FROM_REG(data->fan_div[nr])); - - switch (val) { - case 1: data->fan_div[nr] = 0; break; - case 2: data->fan_div[nr] = 1; break; - case 4: data->fan_div[nr] = 2; break; - case 8: data->fan_div[nr] = 3; break; - default: - up(&data->update_lock); - return -EINVAL; - } - - reg = lm87_read_value(client, LM87_REG_VID_FAN_DIV); - switch (nr) { - case 0: - reg = (reg & 0xCF) | (data->fan_div[0] << 4); - break; - case 1: - reg = (reg & 0x3F) | (data->fan_div[1] << 6); - break; - } - lm87_write_value(client, LM87_REG_VID_FAN_DIV, reg); - - data->fan_min[nr] = FAN_TO_REG(min, val); - lm87_write_value(client, LM87_REG_FAN_MIN(nr), - data->fan_min[nr]); - up(&data->update_lock); - - return count; -} - -#define set_fan(offset) \ -static ssize_t set_fan##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \ - size_t count) \ -{ \ - set_fan_min(dev, buf, offset-1); \ - return count; \ -} \ -static ssize_t set_fan##offset##_div(struct device *dev, struct device_attribute *attr, const char *buf, \ - size_t count) \ -{ \ - return set_fan_div(dev, buf, count, offset-1); \ -} \ -static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ - show_fan##offset##_min, set_fan##offset##_min); \ -static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ - show_fan##offset##_div, set_fan##offset##_div); -set_fan(1); -set_fan(2); - -static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct lm87_data *data = lm87_update_device(dev); - return sprintf(buf, "%d\n", data->alarms); -} -static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); - -static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct lm87_data *data = lm87_update_device(dev); - return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); -} -static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); - -static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct lm87_data *data = lm87_update_device(dev); - return sprintf(buf, "%d\n", data->vrm); -} -static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) -{ - struct i2c_client *client = to_i2c_client(dev); - struct lm87_data *data = i2c_get_clientdata(client); - data->vrm = simple_strtoul(buf, NULL, 10); - return count; -} -static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); - -static ssize_t show_aout(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct lm87_data *data = lm87_update_device(dev); - return sprintf(buf, "%d\n", AOUT_FROM_REG(data->aout)); -} -static ssize_t set_aout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) -{ - struct i2c_client *client = to_i2c_client(dev); - struct lm87_data *data = i2c_get_clientdata(client); - long val = simple_strtol(buf, NULL, 10); - - down(&data->update_lock); - data->aout = AOUT_TO_REG(val); - lm87_write_value(client, LM87_REG_AOUT, data->aout); - up(&data->update_lock); - return count; -} -static DEVICE_ATTR(aout_output, S_IRUGO | S_IWUSR, show_aout, set_aout); - -/* - * Real code - */ - -static int lm87_attach_adapter(struct i2c_adapter *adapter) -{ - if (!(adapter->class & I2C_CLASS_HWMON)) - return 0; - return i2c_detect(adapter, &addr_data, lm87_detect); -} - -/* - * The following function does more than just detection. If detection - * succeeds, it also registers the new chip. - */ -static int lm87_detect(struct i2c_adapter *adapter, int address, int kind) -{ - struct i2c_client *new_client; - struct lm87_data *data; - int err = 0; - - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - goto exit; - - if (!(data = kmalloc(sizeof(struct lm87_data), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; - } - memset(data, 0, sizeof(struct lm87_data)); - - /* The common I2C client data is placed right before the - LM87-specific data. */ - new_client = &data->client; - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &lm87_driver; - new_client->flags = 0; - - /* Default to an LM87 if forced */ - if (kind == 0) - kind = lm87; - - /* Now, we do the remaining detection. */ - if (kind < 0) { - u8 rev = lm87_read_value(new_client, LM87_REG_REVISION); - - if (rev < 0x01 || rev > 0x08 - || (lm87_read_value(new_client, LM87_REG_CONFIG) & 0x80) - || lm87_read_value(new_client, LM87_REG_COMPANY_ID) != 0x02) { - dev_dbg(&adapter->dev, - "LM87 detection failed at 0x%02x.\n", - address); - goto exit_free; - } - } - - /* We can fill in the remaining client fields */ - strlcpy(new_client->name, "lm87", 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 LM87 chip */ - lm87_init_client(new_client); - - data->in_scale[0] = 2500; - data->in_scale[1] = 2700; - data->in_scale[2] = (data->channel & CHAN_VCC_5V) ? 5000 : 3300; - data->in_scale[3] = 5000; - data->in_scale[4] = 12000; - data->in_scale[5] = 2700; - data->in_scale[6] = 1875; - data->in_scale[7] = 1875; - - /* Register sysfs hooks */ - device_create_file(&new_client->dev, &dev_attr_in1_input); - device_create_file(&new_client->dev, &dev_attr_in1_min); - device_create_file(&new_client->dev, &dev_attr_in1_max); - device_create_file(&new_client->dev, &dev_attr_in2_input); - device_create_file(&new_client->dev, &dev_attr_in2_min); - device_create_file(&new_client->dev, &dev_attr_in2_max); - device_create_file(&new_client->dev, &dev_attr_in3_input); - device_create_file(&new_client->dev, &dev_attr_in3_min); - device_create_file(&new_client->dev, &dev_attr_in3_max); - device_create_file(&new_client->dev, &dev_attr_in4_input); - device_create_file(&new_client->dev, &dev_attr_in4_min); - device_create_file(&new_client->dev, &dev_attr_in4_max); - - if (data->channel & CHAN_NO_FAN(0)) { - device_create_file(&new_client->dev, &dev_attr_in6_input); - device_create_file(&new_client->dev, &dev_attr_in6_min); - device_create_file(&new_client->dev, &dev_attr_in6_max); - } else { - device_create_file(&new_client->dev, &dev_attr_fan1_input); - device_create_file(&new_client->dev, &dev_attr_fan1_min); - device_create_file(&new_client->dev, &dev_attr_fan1_div); - } - if (data->channel & CHAN_NO_FAN(1)) { - device_create_file(&new_client->dev, &dev_attr_in7_input); - device_create_file(&new_client->dev, &dev_attr_in7_min); - device_create_file(&new_client->dev, &dev_attr_in7_max); - } else { - device_create_file(&new_client->dev, &dev_attr_fan2_input); - device_create_file(&new_client->dev, &dev_attr_fan2_min); - 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_min); - device_create_file(&new_client->dev, &dev_attr_temp1_crit); - device_create_file(&new_client->dev, &dev_attr_temp2_input); - device_create_file(&new_client->dev, &dev_attr_temp2_max); - device_create_file(&new_client->dev, &dev_attr_temp2_min); - device_create_file(&new_client->dev, &dev_attr_temp2_crit); - - if (data->channel & CHAN_TEMP3) { - device_create_file(&new_client->dev, &dev_attr_temp3_input); - device_create_file(&new_client->dev, &dev_attr_temp3_max); - device_create_file(&new_client->dev, &dev_attr_temp3_min); - device_create_file(&new_client->dev, &dev_attr_temp3_crit); - } else { - device_create_file(&new_client->dev, &dev_attr_in0_input); - device_create_file(&new_client->dev, &dev_attr_in0_min); - device_create_file(&new_client->dev, &dev_attr_in0_max); - device_create_file(&new_client->dev, &dev_attr_in5_input); - device_create_file(&new_client->dev, &dev_attr_in5_min); - device_create_file(&new_client->dev, &dev_attr_in5_max); - } - - if (!(data->channel & CHAN_NO_VID)) { - device_create_file(&new_client->dev, &dev_attr_cpu0_vid); - device_create_file(&new_client->dev, &dev_attr_vrm); - } - - device_create_file(&new_client->dev, &dev_attr_alarms); - device_create_file(&new_client->dev, &dev_attr_aout_output); - - return 0; - -exit_free: - kfree(data); -exit: - return err; -} - -static void lm87_init_client(struct i2c_client *client) -{ - struct lm87_data *data = i2c_get_clientdata(client); - u8 config; - - data->channel = lm87_read_value(client, LM87_REG_CHANNEL_MODE); - data->vrm = i2c_which_vrm(); - - config = lm87_read_value(client, LM87_REG_CONFIG); - if (!(config & 0x01)) { - int i; - - /* Limits are left uninitialized after power-up */ - for (i = 1; i < 6; i++) { - lm87_write_value(client, LM87_REG_IN_MIN(i), 0x00); - lm87_write_value(client, LM87_REG_IN_MAX(i), 0xFF); - } - for (i = 0; i < 2; i++) { - lm87_write_value(client, LM87_REG_TEMP_HIGH[i], 0x7F); - lm87_write_value(client, LM87_REG_TEMP_LOW[i], 0x00); - lm87_write_value(client, LM87_REG_AIN_MIN(i), 0x00); - lm87_write_value(client, LM87_REG_AIN_MAX(i), 0xFF); - } - if (data->channel & CHAN_TEMP3) { - lm87_write_value(client, LM87_REG_TEMP_HIGH[2], 0x7F); - lm87_write_value(client, LM87_REG_TEMP_LOW[2], 0x00); - } else { - lm87_write_value(client, LM87_REG_IN_MIN(0), 0x00); - lm87_write_value(client, LM87_REG_IN_MAX(0), 0xFF); - } - } - if ((config & 0x81) != 0x01) { - /* Start monitoring */ - lm87_write_value(client, LM87_REG_CONFIG, - (config & 0xF7) | 0x01); - } -} - -static int lm87_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; -} - -static struct lm87_data *lm87_update_device(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct lm87_data *data = i2c_get_clientdata(client); - - down(&data->update_lock); - - if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { - int i, j; - - dev_dbg(&client->dev, "Updating data.\n"); - - i = (data->channel & CHAN_TEMP3) ? 1 : 0; - j = (data->channel & CHAN_TEMP3) ? 5 : 6; - for (; i < j; i++) { - data->in[i] = lm87_read_value(client, - LM87_REG_IN(i)); - data->in_min[i] = lm87_read_value(client, - LM87_REG_IN_MIN(i)); - data->in_max[i] = lm87_read_value(client, - LM87_REG_IN_MAX(i)); - } - - for (i = 0; i < 2; i++) { - if (data->channel & CHAN_NO_FAN(i)) { - data->in[6+i] = lm87_read_value(client, - LM87_REG_AIN(i)); - data->in_max[6+i] = lm87_read_value(client, - LM87_REG_AIN_MAX(i)); - data->in_min[6+i] = lm87_read_value(client, - LM87_REG_AIN_MIN(i)); - - } else { - data->fan[i] = lm87_read_value(client, - LM87_REG_FAN(i)); - data->fan_min[i] = lm87_read_value(client, - LM87_REG_FAN_MIN(i)); - } - } - - j = (data->channel & CHAN_TEMP3) ? 3 : 2; - for (i = 0 ; i < j; i++) { - data->temp[i] = lm87_read_value(client, - LM87_REG_TEMP[i]); - data->temp_high[i] = lm87_read_value(client, - LM87_REG_TEMP_HIGH[i]); - data->temp_low[i] = lm87_read_value(client, - LM87_REG_TEMP_LOW[i]); - } - - i = lm87_read_value(client, LM87_REG_TEMP_HW_INT_LOCK); - j = lm87_read_value(client, LM87_REG_TEMP_HW_INT); - data->temp_crit_int = min(i, j); - - i = lm87_read_value(client, LM87_REG_TEMP_HW_EXT_LOCK); - j = lm87_read_value(client, LM87_REG_TEMP_HW_EXT); - data->temp_crit_ext = min(i, j); - - i = lm87_read_value(client, LM87_REG_VID_FAN_DIV); - data->fan_div[0] = (i >> 4) & 0x03; - data->fan_div[1] = (i >> 6) & 0x03; - data->vid = (i & 0x0F) - | (lm87_read_value(client, LM87_REG_VID4) & 0x01) - << 4; - - data->alarms = lm87_read_value(client, LM87_REG_ALARMS1) - | (lm87_read_value(client, LM87_REG_ALARMS2) - << 8); - data->aout = lm87_read_value(client, LM87_REG_AOUT); - - data->last_updated = jiffies; - data->valid = 1; - } - - up(&data->update_lock); - - return data; -} - -static int __init sensors_lm87_init(void) -{ - return i2c_add_driver(&lm87_driver); -} - -static void __exit sensors_lm87_exit(void) -{ - i2c_del_driver(&lm87_driver); -} - -MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org> and others"); -MODULE_DESCRIPTION("LM87 driver"); -MODULE_LICENSE("GPL"); - -module_init(sensors_lm87_init); -module_exit(sensors_lm87_exit); |