--- /dev/null
+/*
+ * w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (C) 2004, 2005 Winbond Electronics Corp.
+ * Shane Huang,
+ * Rudolf Marek <r.marek@assembler.cz>
+ *
+ * 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.
+ *
+ * Note:
+ * 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver.
+ * 2. This driver is only for Winbond W83792D C version device, there
+ * are also some motherboards with B version W83792D device. The
+ * calculation method to in6-in7(measured value, limits) is a little
+ * different between C and B version. C or B version can be identified
+ * by CR[0x49h].
+ */
+
+/*
+ * Supports following chips:
+ *
+ * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
+ * w83792d 9 7 7 3 0x7a 0x5ca3 yes no
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+#include <linux/jiffies.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
+ I2C_CLIENT_END };
+
+/* Insmod parameters */
+
+static unsigned short force_subclients[4];
+module_param_array(force_subclients, short, NULL, 0);
+MODULE_PARM_DESC(force_subclients,
+ "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}");
+
+static bool init;
+module_param(init, bool, 0);
+MODULE_PARM_DESC(init, "Set to one to force chip initialization");
+
+/* The W83792D registers */
+static const u8 W83792D_REG_IN[9] = {
+ 0x20, /* Vcore A in DataSheet */
+ 0x21, /* Vcore B in DataSheet */
+ 0x22, /* VIN0 in DataSheet */
+ 0x23, /* VIN1 in DataSheet */
+ 0x24, /* VIN2 in DataSheet */
+ 0x25, /* VIN3 in DataSheet */
+ 0x26, /* 5VCC in DataSheet */
+ 0xB0, /* 5VSB in DataSheet */
+ 0xB1 /* VBAT in DataSheet */
+};
+#define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */
+#define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */
+static const u8 W83792D_REG_IN_MAX[9] = {
+ 0x2B, /* Vcore A High Limit in DataSheet */
+ 0x2D, /* Vcore B High Limit in DataSheet */
+ 0x2F, /* VIN0 High Limit in DataSheet */
+ 0x31, /* VIN1 High Limit in DataSheet */
+ 0x33, /* VIN2 High Limit in DataSheet */
+ 0x35, /* VIN3 High Limit in DataSheet */
+ 0x37, /* 5VCC High Limit in DataSheet */
+ 0xB4, /* 5VSB High Limit in DataSheet */
+ 0xB6 /* VBAT High Limit in DataSheet */
+};
+static const u8 W83792D_REG_IN_MIN[9] = {
+ 0x2C, /* Vcore A Low Limit in DataSheet */
+ 0x2E, /* Vcore B Low Limit in DataSheet */
+ 0x30, /* VIN0 Low Limit in DataSheet */
+ 0x32, /* VIN1 Low Limit in DataSheet */
+ 0x34, /* VIN2 Low Limit in DataSheet */
+ 0x36, /* VIN3 Low Limit in DataSheet */
+ 0x38, /* 5VCC Low Limit in DataSheet */
+ 0xB5, /* 5VSB Low Limit in DataSheet */
+ 0xB7 /* VBAT Low Limit in DataSheet */
+};
+static const u8 W83792D_REG_FAN[7] = {
+ 0x28, /* FAN 1 Count in DataSheet */
+ 0x29, /* FAN 2 Count in DataSheet */
+ 0x2A, /* FAN 3 Count in DataSheet */
+ 0xB8, /* FAN 4 Count in DataSheet */
+ 0xB9, /* FAN 5 Count in DataSheet */
+ 0xBA, /* FAN 6 Count in DataSheet */
+ 0xBE /* FAN 7 Count in DataSheet */
+};
+static const u8 W83792D_REG_FAN_MIN[7] = {
+ 0x3B, /* FAN 1 Count Low Limit in DataSheet */
+ 0x3C, /* FAN 2 Count Low Limit in DataSheet */
+ 0x3D, /* FAN 3 Count Low Limit in DataSheet */
+ 0xBB, /* FAN 4 Count Low Limit in DataSheet */
+ 0xBC, /* FAN 5 Count Low Limit in DataSheet */
+ 0xBD, /* FAN 6 Count Low Limit in DataSheet */
+ 0xBF /* FAN 7 Count Low Limit in DataSheet */
+};
+#define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */
+static const u8 W83792D_REG_FAN_DIV[4] = {
+ 0x47, /* contains FAN2 and FAN1 Divisor */
+ 0x5B, /* contains FAN4 and FAN3 Divisor */
+ 0x5C, /* contains FAN6 and FAN5 Divisor */
+ 0x9E /* contains FAN7 Divisor. */
+};
+static const u8 W83792D_REG_PWM[7] = {
+ 0x81, /* FAN 1 Duty Cycle, be used to control */
+ 0x83, /* FAN 2 Duty Cycle, be used to control */
+ 0x94, /* FAN 3 Duty Cycle, be used to control */
+ 0xA3, /* FAN 4 Duty Cycle, be used to control */
+ 0xA4, /* FAN 5 Duty Cycle, be used to control */
+ 0xA5, /* FAN 6 Duty Cycle, be used to control */
+ 0xA6 /* FAN 7 Duty Cycle, be used to control */
+};
+#define W83792D_REG_BANK 0x4E
+#define W83792D_REG_TEMP2_CONFIG 0xC2
+#define W83792D_REG_TEMP3_CONFIG 0xCA
+
+static const u8 W83792D_REG_TEMP1[3] = {
+ 0x27, /* TEMP 1 in DataSheet */
+ 0x39, /* TEMP 1 Over in DataSheet */
+ 0x3A, /* TEMP 1 Hyst in DataSheet */
+};
+
+static const u8 W83792D_REG_TEMP_ADD[2][6] = {
+ { 0xC0, /* TEMP 2 in DataSheet */
+ 0xC1, /* TEMP 2(0.5 deg) in DataSheet */
+ 0xC5, /* TEMP 2 Over High part in DataSheet */
+ 0xC6, /* TEMP 2 Over Low part in DataSheet */
+ 0xC3, /* TEMP 2 Thyst High part in DataSheet */
+ 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */
+ { 0xC8, /* TEMP 3 in DataSheet */
+ 0xC9, /* TEMP 3(0.5 deg) in DataSheet */
+ 0xCD, /* TEMP 3 Over High part in DataSheet */
+ 0xCE, /* TEMP 3 Over Low part in DataSheet */
+ 0xCB, /* TEMP 3 Thyst High part in DataSheet */
+ 0xCC } /* TEMP 3 Thyst Low part in DataSheet */
+};
+
+static const u8 W83792D_REG_THERMAL[3] = {
+ 0x85, /* SmartFanI: Fan1 target value */
+ 0x86, /* SmartFanI: Fan2 target value */
+ 0x96 /* SmartFanI: Fan3 target value */
+};
+
+static const u8 W83792D_REG_TOLERANCE[3] = {
+ 0x87, /* (bit3-0)SmartFan Fan1 tolerance */
+ 0x87, /* (bit7-4)SmartFan Fan2 tolerance */
+ 0x97 /* (bit3-0)SmartFan Fan3 tolerance */
+};
+
+static const u8 W83792D_REG_POINTS[3][4] = {
+ { 0x85, /* SmartFanII: Fan1 temp point 1 */
+ 0xE3, /* SmartFanII: Fan1 temp point 2 */
+ 0xE4, /* SmartFanII: Fan1 temp point 3 */
+ 0xE5 }, /* SmartFanII: Fan1 temp point 4 */
+ { 0x86, /* SmartFanII: Fan2 temp point 1 */
+ 0xE6, /* SmartFanII: Fan2 temp point 2 */
+ 0xE7, /* SmartFanII: Fan2 temp point 3 */
+ 0xE8 }, /* SmartFanII: Fan2 temp point 4 */
+ { 0x96, /* SmartFanII: Fan3 temp point 1 */
+ 0xE9, /* SmartFanII: Fan3 temp point 2 */
+ 0xEA, /* SmartFanII: Fan3 temp point 3 */
+ 0xEB } /* SmartFanII: Fan3 temp point 4 */
+};
+
+static const u8 W83792D_REG_LEVELS[3][4] = {
+ { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */
+ 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */
+ 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */
+ 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */
+ { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */
+ 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */
+ 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */
+ 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */
+ { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */
+ 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */
+ 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */
+ 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */
+};
+
+#define W83792D_REG_GPIO_EN 0x1A
+#define W83792D_REG_CONFIG 0x40
+#define W83792D_REG_VID_FANDIV 0x47
+#define W83792D_REG_CHIPID 0x49
+#define W83792D_REG_WCHIPID 0x58
+#define W83792D_REG_CHIPMAN 0x4F
+#define W83792D_REG_PIN 0x4B
+#define W83792D_REG_I2C_SUBADDR 0x4A
+
+#define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */
+#define W83792D_REG_ALARM2 0xAA /* realtime status register2 */
+#define W83792D_REG_ALARM3 0xAB /* realtime status register3 */
+#define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */
+#define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */
+
+/* control in0/in1 's limit modifiability */
+#define W83792D_REG_VID_IN_B 0x17
+
+#define W83792D_REG_VBAT 0x5D
+#define W83792D_REG_I2C_ADDR 0x48
+
+/*
+ * 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 IN_FROM_REG(nr, val) (((nr) <= 1) ? ((val) * 2) : \
+ ((((nr) == 6) || ((nr) == 7)) ? ((val) * 6) : ((val) * 4)))
+#define IN_TO_REG(nr, val) (((nr) <= 1) ? ((val) / 2) : \
+ ((((nr) == 6) || ((nr) == 7)) ? ((val) / 6) : ((val) / 4)))
+
+static inline u8
+FAN_TO_REG(long rpm, int div)
+{
+ if (rpm == 0)
+ return 255;
+ rpm = clamp_val(rpm, 1, 1000000);
+ return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
+}
+
+#define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \
+ ((val) == 255 ? 0 : \
+ 1350000 / ((val) * (div))))
+
+/* for temp1 */
+#define TEMP1_TO_REG(val) (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 \
+ : (val)) / 1000, 0, 0xff))
+#define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
+/* for temp2 and temp3, because they need additional resolution */
+#define TEMP_ADD_FROM_REG(val1, val2) \
+ ((((val1) & 0x80 ? (val1)-0x100 \
+ : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
+#define TEMP_ADD_TO_REG_HIGH(val) \
+ (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 : (val)) / 1000, 0, 0xff))
+#define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00)
+
+#define DIV_FROM_REG(val) (1 << (val))
+
+static inline u8
+DIV_TO_REG(long val)
+{
+ int i;
+ val = clamp_val(val, 1, 128) >> 1;
+ for (i = 0; i < 7; i++) {
+ if (val == 0)
+ break;
+ val >>= 1;
+ }
+ return (u8)i;
+}
+
+struct w83792d_data {
+ struct device *hwmon_dev;
+
+ struct mutex update_lock;
+ char valid; /* !=0 if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ /* array of 2 pointers to subclients */
+ struct i2c_client *lm75[2];
+
+ u8 in[9]; /* Register value */
+ u8 in_max[9]; /* Register value */
+ u8 in_min[9]; /* Register value */
+ u16 low_bits; /* Additional resolution to voltage in6-0 */
+ u8 fan[7]; /* Register value */
+ u8 fan_min[7]; /* Register value */
+ u8 temp1[3]; /* current, over, thyst */
+ u8 temp_add[2][6]; /* Register value */
+ u8 fan_div[7]; /* Register encoding, shifted right */
+ u8 pwm[7]; /*
+ * We only consider the first 3 set of pwm,
+ * although 792 chip has 7 set of pwm.
+ */
+ u8 pwmenable[3];
+ u32 alarms; /* realtime status register encoding,combined */
+ u8 chassis; /* Chassis status */
+ u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */
+ u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */
+ u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */
+ u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */
+};
+
+static int w83792d_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int w83792d_detect(struct i2c_client *client,
+ struct i2c_board_info *info);
+static int w83792d_remove(struct i2c_client *client);
+static struct w83792d_data *w83792d_update_device(struct device *dev);
+
+#ifdef DEBUG
+static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
+#endif
+
+static void w83792d_init_client(struct i2c_client *client);
+
+static const struct i2c_device_id w83792d_id[] = {
+ { "w83792d", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, w83792d_id);
+
+static struct i2c_driver w83792d_driver = {
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = "w83792d",
+ },
+ .probe = w83792d_probe,
+ .remove = w83792d_remove,
+ .id_table = w83792d_id,
+ .detect = w83792d_detect,
+ .address_list = normal_i2c,
+};
+
+static inline long in_count_from_reg(int nr, struct w83792d_data *data)
+{
+ /* in7 and in8 do not have low bits, but the formula still works */
+ return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03);
+}
+
+/*
+ * The SMBus locks itself. The Winbond W83792D chip has a bank register,
+ * but the driver only accesses registers in bank 0, so we don't have
+ * to switch banks and lock access between switches.
+ */
+static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
+{
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+static inline int
+w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* following are the sysfs callback functions */
+static ssize_t show_in(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+ struct w83792d_data *data = w83792d_update_device(dev);
+ return sprintf(buf, "%ld\n",
+ IN_FROM_REG(nr, in_count_from_reg(nr, data)));
+}
+
+#define show_in_reg(reg) \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct sensor_device_attribute *sensor_attr \
+ = to_sensor_dev_attr(attr); \
+ int nr = sensor_attr->index; \
+ struct w83792d_data *data = w83792d_update_device(dev); \
+ return sprintf(buf, "%ld\n", \
+ (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \
+}
+
+show_in_reg(in_min);
+show_in_reg(in_max);
+
+#define store_in_reg(REG, reg) \
+static ssize_t store_in_##reg(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t count) \
+{ \
+ struct sensor_device_attribute *sensor_attr \
+ = to_sensor_dev_attr(attr); \
+ int nr = sensor_attr->index; \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct w83792d_data *data = i2c_get_clientdata(client); \
+ unsigned long val; \
+ int err = kstrtoul(buf, 10, &val); \
+ if (err) \
+ return err; \
+ mutex_lock(&data->update_lock); \
+ data->in_##reg[nr] = clamp_val(IN_TO_REG(nr, val) / 4, 0, 255); \
+ w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \
+ data->in_##reg[nr]); \
+ mutex_unlock(&data->update_lock); \
+ \
+ return count; \
+}
+store_in_reg(MIN, min);
+store_in_reg(MAX, max);
+
+#define show_fan_reg(reg) \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct sensor_device_attribute *sensor_attr \
+ = to_sensor_dev_attr(attr); \
+ int nr = sensor_attr->index - 1; \
+ struct w83792d_data *data = w83792d_update_device(dev); \
+ return sprintf(buf, "%d\n", \
+ FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
+}
+
+show_fan_reg(fan);
+show_fan_reg(fan_min);
+
+static ssize_t
+store_fan_min(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index - 1;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83792d_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
+ data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+ w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
+ data->fan_min[nr]);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t
+show_fan_div(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+ struct w83792d_data *data = w83792d_update_device(dev);
+ return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
+}
+
+/*
+ * Note: we save and restore the fan minimum here, because its value is
+ * determined in part by the fan divisor. This follows the principle of
+ * least surprise; the user doesn't expect the fan minimum to change just
+ * because the divisor changed.
+ */
+static ssize_t
+store_fan_div(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index - 1;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83792d_data *data = i2c_get_clientdata(client);
+ unsigned long min;
+ /*u8 reg;*/
+ u8 fan_div_reg = 0;
+ u8 tmp_fan_div;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ /* Save fan_min */
+ mutex_lock(&data->update_lock);
+ min = FAN_FROM_REG(data->fan_min[nr],
+ DIV_FROM_REG(data->fan_div[nr]));
+
+ data->fan_div[nr] = DIV_TO_REG(val);
+
+ fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
+ fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
+ tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
+ : ((data->fan_div[nr]) & 0x07);
+ w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
+ fan_div_reg | tmp_fan_div);
+
+ /* Restore fan_min */
+ data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+ w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+/* read/write the temperature1, includes measured value and limits */
+
+static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+ struct w83792d_data *data = w83792d_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
+}
+
+static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83792d_data *data = i2c_get_clientdata(client);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
+ data->temp1[nr] = TEMP1_TO_REG(val);
+ w83792d_write_value(client, W83792D_REG_TEMP1[nr],
+ data->temp1[nr]);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+/* read/write the temperature2-3, includes measured value and limits */
+
+static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct sensor_device_attribute_2 *sensor_attr
+ = to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ struct w83792d_data *data = w83792d_update_device(dev);
+ return sprintf(buf, "%ld\n",
+ (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
+ data->temp_add[nr][index+1]));
+}
+
+static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute_2 *sensor_attr
+ = to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83792d_data *data = i2c_get_clientdata(client);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
+ data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
+ data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
+ w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
+ data->temp_add[nr][index]);
+ w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
+ data->temp_add[nr][index+1]);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+/* get realtime status of all sensors items: voltage, temp, fan */
+static ssize_t
+show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct w83792d_data *data = w83792d_update_device(dev);
+ return sprintf(buf, "%d\n", data->alarms);
+}
+
+static ssize_t show_alarm(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+ struct w83792d_data *data = w83792d_update_device(dev);
+ return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
+}
+
+static ssize_t
+show_pwm(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+ struct w83792d_data *data = w83792d_update_device(dev);
+ return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
+}
+
+static ssize_t
+show_pwmenable(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index - 1;
+ struct w83792d_data *data = w83792d_update_device(dev);
+ long pwm_enable_tmp = 1;
+
+ switch (data->pwmenable[nr]) {
+ case 0:
+ pwm_enable_tmp = 1; /* manual mode */
+ break;
+ case 1:
+ pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
+ break;
+ case 2:
+ pwm_enable_tmp = 2; /* Smart Fan II */
+ break;
+ }
+
+ return sprintf(buf, "%ld\n", pwm_enable_tmp);
+}
+
+static ssize_t
+store_pwm(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83792d_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+ val = clamp_val(val, 0, 255) >> 4;
+
+ mutex_lock(&data->update_lock);
+ val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
+ data->pwm[nr] = val;
+ w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t
+store_pwmenable(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index - 1;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83792d_data *data = i2c_get_clientdata(client);
+ u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ if (val < 1 || val > 3)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ switch (val) {
+ case 1:
+ data->pwmenable[nr] = 0; /* manual mode */
+ break;
+ case 2:
+ data->pwmenable[nr] = 2; /* Smart Fan II */
+ break;
+ case 3:
+ data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
+ break;
+ }
+ cfg1_tmp = data->pwmenable[0];
+ cfg2_tmp = (data->pwmenable[1]) << 2;
+ cfg3_tmp = (data->pwmenable[2]) << 4;
+ cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0;
+ fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
+ w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t
+show_pwm_mode(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+ struct w83792d_data *data = w83792d_update_device(dev);
+ return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
+}
+
+static ssize_t
+store_pwm_mode(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83792d_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+ if (val > 1)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
+ if (val) { /* PWM mode */
+ data->pwm[nr] |= 0x80;
+ } else { /* DC mode */
+ data->pwm[nr] &= 0x7f;
+ }
+ w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t
+show_chassis_clear(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct w83792d_data *data = w83792d_update_device(dev);
+ return sprintf(buf, "%d\n", data->chassis);
+}
+
+static ssize_t
+store_chassis_clear(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83792d_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+ u8 reg;
+
+ if (kstrtoul(buf, 10, &val) || val != 0)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR);
+ w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80);
+ data->valid = 0; /* Force cache refresh */
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+/* For Smart Fan I / Thermal Cruise */
+static ssize_t
+show_thermal_cruise(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+ struct w83792d_data *data = w83792d_update_device(dev);
+ return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
+}
+
+static ssize_t
+store_thermal_cruise(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index - 1;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83792d_data *data = i2c_get_clientdata(client);
+ u8 target_tmp = 0, target_mask = 0;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ target_tmp = val;
+ target_tmp = target_tmp & 0x7f;
+ mutex_lock(&data->update_lock);
+ target_mask = w83792d_read_value(client,
+ W83792D_REG_THERMAL[nr]) & 0x80;
+ data->thermal_cruise[nr] = clamp_val(target_tmp, 0, 255);
+ w83792d_write_value(client, W83792D_REG_THERMAL[nr],
+ (data->thermal_cruise[nr]) | target_mask);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+/* For Smart Fan I/Thermal Cruise and Smart Fan II */
+static ssize_t
+show_tolerance(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+ struct w83792d_data *data = w83792d_update_device(dev);
+ return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
+}
+
+static ssize_t
+store_tolerance(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index - 1;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83792d_data *data = i2c_get_clientdata(client);
+ u8 tol_tmp, tol_mask;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
+ tol_mask = w83792d_read_value(client,
+ W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
+ tol_tmp = clamp_val(val, 0, 15);
+ tol_tmp &= 0x0f;
+ data->tolerance[nr] = tol_tmp;
+ if (nr == 1)
+ tol_tmp <<= 4;
+ w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
+ tol_mask | tol_tmp);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+/* For Smart Fan II */
+static ssize_t
+show_sf2_point(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct sensor_device_attribute_2 *sensor_attr
+ = to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ struct w83792d_data *data = w83792d_update_device(dev);
+ return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
+}
+
+static ssize_t
+store_sf2_point(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute_2 *sensor_attr
+ = to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr - 1;
+ int index = sensor_attr->index - 1;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83792d_data *data = i2c_get_clientdata(client);
+ u8 mask_tmp = 0;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
+ data->sf2_points[index][nr] = clamp_val(val, 0, 127);
+ mask_tmp = w83792d_read_value(client,
+ W83792D_REG_POINTS[index][nr]) & 0x80;
+ w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
+ mask_tmp|data->sf2_points[index][nr]);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t
+show_sf2_level(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct sensor_device_attribute_2 *sensor_attr
+ = to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index;
+ struct w83792d_data *data = w83792d_update_device(dev);
+ return sprintf(buf, "%d\n",
+ (((data->sf2_levels[index-1][nr]) * 100) / 15));
+}
+
+static ssize_t
+store_sf2_level(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute_2 *sensor_attr
+ = to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int index = sensor_attr->index - 1;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83792d_data *data = i2c_get_clientdata(client);
+ u8 mask_tmp = 0, level_tmp = 0;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
+ data->sf2_levels[index][nr] = clamp_val((val * 15) / 100, 0, 15);
+ mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
+ & ((nr == 3) ? 0xf0 : 0x0f);
+ if (nr == 3)
+ level_tmp = data->sf2_levels[index][nr];
+ else
+ level_tmp = data->sf2_levels[index][nr] << 4;
+ w83792d_write_value(client, W83792D_REG_LEVELS[index][nr],
+ level_tmp | mask_tmp);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+
+static int
+w83792d_detect_subclients(struct i2c_client *new_client)
+{
+ int i, id, err;
+ int address = new_client->addr;
+ u8 val;
+ struct i2c_adapter *adapter = new_client->adapter;
+ struct w83792d_data *data = i2c_get_clientdata(new_client);
+
+ id = i2c_adapter_id(adapter);
+ if (force_subclients[0] == id && force_subclients[1] == address) {
+ for (i = 2; i <= 3; i++) {
+ if (force_subclients[i] < 0x48 ||
+ force_subclients[i] > 0x4f) {
+ dev_err(&new_client->dev,
+ "invalid subclient address %d; must be 0x48-0x4f\n",
+ force_subclients[i]);
+ err = -ENODEV;
+ goto ERROR_SC_0;
+ }
+ }
+ w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
+ (force_subclients[2] & 0x07) |
+ ((force_subclients[3] & 0x07) << 4));
+ }
+
+ val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
+ if (!(val & 0x08))
+ data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
+ if (!(val & 0x80)) {
+ if ((data->lm75[0] != NULL) &&
+ ((val & 0x7) == ((val >> 4) & 0x7))) {
+ dev_err(&new_client->dev,
+ "duplicate addresses 0x%x, use force_subclient\n",
+ data->lm75[0]->addr);
+ err = -ENODEV;
+ goto ERROR_SC_1;
+ }
+ data->lm75[1] = i2c_new_dummy(adapter,
+ 0x48 + ((val >> 4) & 0x7));
+ }
+
+ return 0;
+
+/* Undo inits in case of errors */
+
+ERROR_SC_1:
+ if (data->lm75[0] != NULL)
+ i2c_unregister_device(data->lm75[0]);
+ERROR_SC_0:
+ return err;
+}
+
+static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
+static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
+static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
+static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
+static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
+static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
+ show_in_min, store_in_min, 0);
+static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
+ show_in_min, store_in_min, 1);
+static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
+ show_in_min, store_in_min, 2);
+static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
+ show_in_min, store_in_min, 3);
+static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
+ show_in_min, store_in_min, 4);
+static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
+ show_in_min, store_in_min, 5);
+static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
+ show_in_min, store_in_min, 6);
+static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
+ show_in_min, store_in_min, 7);
+static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
+ show_in_min, store_in_min, 8);
+static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
+ show_in_max, store_in_max, 0);
+static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
+ show_in_max, store_in_max, 1);
+static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
+ show_in_max, store_in_max, 2);
+static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
+ show_in_max, store_in_max, 3);
+static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
+ show_in_max, store_in_max, 4);
+static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
+ show_in_max, store_in_max, 5);
+static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
+ show_in_max, store_in_max, 6);
+static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
+ show_in_max, store_in_max, 7);
+static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
+ show_in_max, store_in_max, 8);
+static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
+static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
+static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
+ show_temp1, store_temp1, 0, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
+ store_temp23, 0, 2);
+static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
+ store_temp23, 1, 2);
+static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
+ show_temp1, store_temp1, 0, 2);
+static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
+ show_temp23, store_temp23, 0, 4);
+static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
+ show_temp23, store_temp23, 1, 4);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
+static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
+static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
+static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
+static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
+static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
+static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
+static DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR,
+ show_chassis_clear, store_chassis_clear);
+static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
+static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
+ show_pwmenable, store_pwmenable, 1);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
+ show_pwmenable, store_pwmenable, 2);
+static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
+ show_pwmenable, store_pwmenable, 3);
+static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
+ show_pwm_mode, store_pwm_mode, 0);
+static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
+ show_pwm_mode, store_pwm_mode, 1);
+static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
+ show_pwm_mode, store_pwm_mode, 2);
+static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
+ show_tolerance, store_tolerance, 1);
+static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
+ show_tolerance, store_tolerance, 2);
+static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
+ show_tolerance, store_tolerance, 3);
+static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
+ show_thermal_cruise, store_thermal_cruise, 1);
+static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
+ show_thermal_cruise, store_thermal_cruise, 2);
+static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
+ show_thermal_cruise, store_thermal_cruise, 3);
+static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
+ show_sf2_point, store_sf2_point, 1, 1);
+static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
+ show_sf2_point, store_sf2_point, 2, 1);
+static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
+ show_sf2_point, store_sf2_point, 3, 1);
+static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
+ show_sf2_point, store_sf2_point, 4, 1);
+static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
+ show_sf2_point, store_sf2_point, 1, 2);
+static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
+ show_sf2_point, store_sf2_point, 2, 2);
+static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
+ show_sf2_point, store_sf2_point, 3, 2);
+static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
+ show_sf2_point, store_sf2_point, 4, 2);
+static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
+ show_sf2_point, store_sf2_point, 1, 3);
+static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
+ show_sf2_point, store_sf2_point, 2, 3);
+static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
+ show_sf2_point, store_sf2_point, 3, 3);
+static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
+ show_sf2_point, store_sf2_point, 4, 3);
+static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
+ show_sf2_level, store_sf2_level, 1, 1);
+static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
+ show_sf2_level, store_sf2_level, 2, 1);
+static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
+ show_sf2_level, store_sf2_level, 3, 1);
+static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
+ show_sf2_level, store_sf2_level, 1, 2);
+static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
+ show_sf2_level, store_sf2_level, 2, 2);
+static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
+ show_sf2_level, store_sf2_level, 3, 2);
+static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
+ show_sf2_level, store_sf2_level, 1, 3);
+static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
+ show_sf2_level, store_sf2_level, 2, 3);
+static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
+ show_sf2_level, store_sf2_level, 3, 3);
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
+static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
+static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
+static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
+ show_fan_min, store_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
+ show_fan_min, store_fan_min, 2);
+static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
+ show_fan_min, store_fan_min, 3);
+static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
+ show_fan_min, store_fan_min, 4);
+static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
+ show_fan_min, store_fan_min, 5);
+static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
+ show_fan_min, store_fan_min, 6);
+static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
+ show_fan_min, store_fan_min, 7);
+static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
+ show_fan_div, store_fan_div, 1);
+static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
+ show_fan_div, store_fan_div, 2);
+static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
+ show_fan_div, store_fan_div, 3);
+static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
+ show_fan_div, store_fan_div, 4);
+static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
+ show_fan_div, store_fan_div, 5);
+static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
+ show_fan_div, store_fan_div, 6);
+static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
+ show_fan_div, store_fan_div, 7);
+
+static struct attribute *w83792d_attributes_fan[4][5] = {
+ {
+ &sensor_dev_attr_fan4_input.dev_attr.attr,
+ &sensor_dev_attr_fan4_min.dev_attr.attr,
+ &sensor_dev_attr_fan4_div.dev_attr.attr,
+ &sensor_dev_attr_fan4_alarm.dev_attr.attr,
+ NULL
+ }, {
+ &sensor_dev_attr_fan5_input.dev_attr.attr,
+ &sensor_dev_attr_fan5_min.dev_attr.attr,
+ &sensor_dev_attr_fan5_div.dev_attr.attr,
+ &sensor_dev_attr_fan5_alarm.dev_attr.attr,
+ NULL
+ }, {
+ &sensor_dev_attr_fan6_input.dev_attr.attr,
+ &sensor_dev_attr_fan6_min.dev_attr.attr,
+ &sensor_dev_attr_fan6_div.dev_attr.attr,
+ &sensor_dev_attr_fan6_alarm.dev_attr.attr,
+ NULL
+ }, {
+ &sensor_dev_attr_fan7_input.dev_attr.attr,
+ &sensor_dev_attr_fan7_min.dev_attr.attr,
+ &sensor_dev_attr_fan7_div.dev_attr.attr,
+ &sensor_dev_attr_fan7_alarm.dev_attr.attr,
+ NULL
+ }
+};
+
+static const struct attribute_group w83792d_group_fan[4] = {
+ { .attrs = w83792d_attributes_fan[0] },
+ { .attrs = w83792d_attributes_fan[1] },
+ { .attrs = w83792d_attributes_fan[2] },
+ { .attrs = w83792d_attributes_fan[3] },
+};
+
+static struct attribute *w83792d_attributes[] = {
+ &sensor_dev_attr_in0_input.dev_attr.attr,
+ &sensor_dev_attr_in0_max.dev_attr.attr,
+ &sensor_dev_attr_in0_min.dev_attr.attr,
+ &sensor_dev_attr_in1_input.dev_attr.attr,
+ &sensor_dev_attr_in1_max.dev_attr.attr,
+ &sensor_dev_attr_in1_min.dev_attr.attr,
+ &sensor_dev_attr_in2_input.dev_attr.attr,
+ &sensor_dev_attr_in2_max.dev_attr.attr,
+ &sensor_dev_attr_in2_min.dev_attr.attr,
+ &sensor_dev_attr_in3_input.dev_attr.attr,
+ &sensor_dev_attr_in3_max.dev_attr.attr,
+ &sensor_dev_attr_in3_min.dev_attr.attr,
+ &sensor_dev_attr_in4_input.dev_attr.attr,
+ &sensor_dev_attr_in4_max.dev_attr.attr,
+ &sensor_dev_attr_in4_min.dev_attr.attr,
+ &sensor_dev_attr_in5_input.dev_attr.attr,
+ &sensor_dev_attr_in5_max.dev_attr.attr,
+ &sensor_dev_attr_in5_min.dev_attr.attr,
+ &sensor_dev_attr_in6_input.dev_attr.attr,
+ &sensor_dev_attr_in6_max.dev_attr.attr,
+ &sensor_dev_attr_in6_min.dev_attr.attr,
+ &sensor_dev_attr_in7_input.dev_attr.attr,
+ &sensor_dev_attr_in7_max.dev_attr.attr,
+ &sensor_dev_attr_in7_min.dev_attr.attr,
+ &sensor_dev_attr_in8_input.dev_attr.attr,
+ &sensor_dev_attr_in8_max.dev_attr.attr,
+ &sensor_dev_attr_in8_min.dev_attr.attr,
+ &sensor_dev_attr_in0_alarm.dev_attr.attr,
+ &sensor_dev_attr_in1_alarm.dev_attr.attr,
+ &sensor_dev_attr_in2_alarm.dev_attr.attr,
+ &sensor_dev_attr_in3_alarm.dev_attr.attr,
+ &sensor_dev_attr_in4_alarm.dev_attr.attr,
+ &sensor_dev_attr_in5_alarm.dev_attr.attr,
+ &sensor_dev_attr_in6_alarm.dev_attr.attr,
+ &sensor_dev_attr_in7_alarm.dev_attr.attr,
+ &sensor_dev_attr_in8_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_max.dev_attr.attr,
+ &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp2_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_max.dev_attr.attr,
+ &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp3_input.dev_attr.attr,
+ &sensor_dev_attr_temp3_max.dev_attr.attr,
+ &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp1_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp3_alarm.dev_attr.attr,
+ &sensor_dev_attr_pwm1.dev_attr.attr,
+ &sensor_dev_attr_pwm1_mode.dev_attr.attr,
+ &sensor_dev_attr_pwm1_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm2.dev_attr.attr,
+ &sensor_dev_attr_pwm2_mode.dev_attr.attr,
+ &sensor_dev_attr_pwm2_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm3.dev_attr.attr,
+ &sensor_dev_attr_pwm3_mode.dev_attr.attr,
+ &sensor_dev_attr_pwm3_enable.dev_attr.attr,
+ &dev_attr_alarms.attr,
+ &dev_attr_intrusion0_alarm.attr,
+ &sensor_dev_attr_tolerance1.dev_attr.attr,
+ &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
+ &sensor_dev_attr_tolerance2.dev_attr.attr,
+ &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
+ &sensor_dev_attr_tolerance3.dev_attr.attr,
+ &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
+ &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
+ &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
+ &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
+ &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
+ &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
+ &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
+ &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
+ &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
+ &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
+ &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
+ &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
+ &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
+ &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
+ &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
+ &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
+ &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
+ &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
+ &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
+ &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
+ &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
+ &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
+ &sensor_dev_attr_fan1_input.dev_attr.attr,
+ &sensor_dev_attr_fan1_min.dev_attr.attr,
+ &sensor_dev_attr_fan1_div.dev_attr.attr,
+ &sensor_dev_attr_fan1_alarm.dev_attr.attr,
+ &sensor_dev_attr_fan2_input.dev_attr.attr,
+ &sensor_dev_attr_fan2_min.dev_attr.attr,
+ &sensor_dev_attr_fan2_div.dev_attr.attr,
+ &sensor_dev_attr_fan2_alarm.dev_attr.attr,
+ &sensor_dev_attr_fan3_input.dev_attr.attr,
+ &sensor_dev_attr_fan3_min.dev_attr.attr,
+ &sensor_dev_attr_fan3_div.dev_attr.attr,
+ &sensor_dev_attr_fan3_alarm.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group w83792d_group = {
+ .attrs = w83792d_attributes,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int
+w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
+{
+ struct i2c_adapter *adapter = client->adapter;
+ int val1, val2;
+ unsigned short address = client->addr;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
+
+ if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80)
+ return -ENODEV;
+
+ val1 = w83792d_read_value(client, W83792D_REG_BANK);
+ val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
+ /* Check for Winbond ID if in bank 0 */
+ if (!(val1 & 0x07)) { /* is Bank0 */
+ if ((!(val1 & 0x80) && val2 != 0xa3) ||
+ ((val1 & 0x80) && val2 != 0x5c))
+ return -ENODEV;
+ }
+ /*
+ * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
+ * should match
+ */
+ if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address)
+ return -ENODEV;
+
+ /* Put it now into bank 0 and Vendor ID High Byte */
+ w83792d_write_value(client,
+ W83792D_REG_BANK,
+ (w83792d_read_value(client,
+ W83792D_REG_BANK) & 0x78) | 0x80);
+
+ /* Determine the chip type. */
+ val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
+ val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
+ if (val1 != 0x7a || val2 != 0x5c)
+ return -ENODEV;
+
+ strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
+
+ return 0;
+}
+
+static int
+w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+ struct w83792d_data *data;
+ struct device *dev = &client->dev;
+ int i, val1, err;
+
+ data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, data);
+ mutex_init(&data->update_lock);
+
+ err = w83792d_detect_subclients(client);
+ if (err)
+ return err;
+
+ /* Initialize the chip */
+ w83792d_init_client(client);
+
+ /* A few vars need to be filled upon startup */
+ for (i = 0; i < 7; i++) {
+ data->fan_min[i] = w83792d_read_value(client,
+ W83792D_REG_FAN_MIN[i]);
+ }
+
+ /* Register sysfs hooks */
+ err = sysfs_create_group(&dev->kobj, &w83792d_group);
+ if (err)
+ goto exit_i2c_unregister;
+
+ /*
+ * Read GPIO enable register to check if pins for fan 4,5 are used as
+ * GPIO
+ */
+ val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
+
+ if (!(val1 & 0x40)) {
+ err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]);
+ if (err)
+ goto exit_remove_files;
+ }
+
+ if (!(val1 & 0x20)) {
+ err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]);
+ if (err)
+ goto exit_remove_files;
+ }
+
+ val1 = w83792d_read_value(client, W83792D_REG_PIN);
+ if (val1 & 0x40) {
+ err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]);
+ if (err)
+ goto exit_remove_files;
+ }
+
+ if (val1 & 0x04) {
+ err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]);
+ if (err)
+ goto exit_remove_files;
+ }
+
+ data->hwmon_dev = hwmon_device_register(dev);
+ if (IS_ERR(data->hwmon_dev)) {
+ err = PTR_ERR(data->hwmon_dev);
+ goto exit_remove_files;
+ }
+
+ return 0;
+
+exit_remove_files:
+ sysfs_remove_group(&dev->kobj, &w83792d_group);
+ for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
+ sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
+exit_i2c_unregister:
+ if (data->lm75[0] != NULL)
+ i2c_unregister_device(data->lm75[0]);
+ if (data->lm75[1] != NULL)
+ i2c_unregister_device(data->lm75[1]);
+ return err;
+}
+
+static int
+w83792d_remove(struct i2c_client *client)
+{
+ struct w83792d_data *data = i2c_get_clientdata(client);
+ int i;
+
+ hwmon_device_unregister(data->hwmon_dev);
+ sysfs_remove_group(&client->dev.kobj, &w83792d_group);
+ for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
+ sysfs_remove_group(&client->dev.kobj,
+ &w83792d_group_fan[i]);
+
+ if (data->lm75[0] != NULL)
+ i2c_unregister_device(data->lm75[0]);
+ if (data->lm75[1] != NULL)
+ i2c_unregister_device(data->lm75[1]);
+
+ return 0;
+}
+
+static void
+w83792d_init_client(struct i2c_client *client)
+{
+ u8 temp2_cfg, temp3_cfg, vid_in_b;
+
+ if (init)
+ w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
+
+ /*
+ * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
+ * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
+ * vin0/vin1 can be modified by user;
+ * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
+ * vin0/vin1 auto-updated, can NOT be modified by user.
+ */
+ vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
+ w83792d_write_value(client, W83792D_REG_VID_IN_B,
+ vid_in_b & 0xbf);
+
+ temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
+ temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
+ w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
+ temp2_cfg & 0xe6);
+ w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
+ temp3_cfg & 0xe6);
+
+ /* Start monitoring */
+ w83792d_write_value(client, W83792D_REG_CONFIG,
+ (w83792d_read_value(client,
+ W83792D_REG_CONFIG) & 0xf7)
+ | 0x01);
+}
+
+static struct w83792d_data *w83792d_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83792d_data *data = i2c_get_clientdata(client);
+ int i, j;
+ u8 reg_array_tmp[4], reg_tmp;
+
+ mutex_lock(&data->update_lock);
+
+ if (time_after
+ (jiffies - data->last_updated, (unsigned long) (HZ * 3))
+ || time_before(jiffies, data->last_updated) || !data->valid) {
+ dev_dbg(dev, "Starting device update\n");
+
+ /* Update the voltages measured value and limits */
+ for (i = 0; i < 9; i++) {
+ data->in[i] = w83792d_read_value(client,
+ W83792D_REG_IN[i]);
+ data->in_max[i] = w83792d_read_value(client,
+ W83792D_REG_IN_MAX[i]);
+ data->in_min[i] = w83792d_read_value(client,
+ W83792D_REG_IN_MIN[i]);
+ }
+ data->low_bits = w83792d_read_value(client,
+ W83792D_REG_LOW_BITS1) +
+ (w83792d_read_value(client,
+ W83792D_REG_LOW_BITS2) << 8);
+ for (i = 0; i < 7; i++) {
+ /* Update the Fan measured value and limits */
+ data->fan[i] = w83792d_read_value(client,
+ W83792D_REG_FAN[i]);
+ data->fan_min[i] = w83792d_read_value(client,
+ W83792D_REG_FAN_MIN[i]);
+ /* Update the PWM/DC Value and PWM/DC flag */
+ data->pwm[i] = w83792d_read_value(client,
+ W83792D_REG_PWM[i]);
+ }
+
+ reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
+ data->pwmenable[0] = reg_tmp & 0x03;
+ data->pwmenable[1] = (reg_tmp>>2) & 0x03;
+ data->pwmenable[2] = (reg_tmp>>4) & 0x03;
+
+ for (i = 0; i < 3; i++) {
+ data->temp1[i] = w83792d_read_value(client,
+ W83792D_REG_TEMP1[i]);
+ }
+ for (i = 0; i < 2; i++) {
+ for (j = 0; j < 6; j++) {
+ data->temp_add[i][j] = w83792d_read_value(
+ client, W83792D_REG_TEMP_ADD[i][j]);
+ }
+ }
+
+ /* Update the Fan Divisor */
+ for (i = 0; i < 4; i++) {
+ reg_array_tmp[i] = w83792d_read_value(client,
+ W83792D_REG_FAN_DIV[i]);
+ }
+ data->fan_div[0] = reg_array_tmp[0] & 0x07;
+ data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
+ data->fan_div[2] = reg_array_tmp[1] & 0x07;
+ data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
+ data->fan_div[4] = reg_array_tmp[2] & 0x07;
+ data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
+ data->fan_div[6] = reg_array_tmp[3] & 0x07;
+
+ /* Update the realtime status */
+ data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
+ (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
+ (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
+
+ /* Update CaseOpen status and it's CLR_CHS. */
+ data->chassis = (w83792d_read_value(client,
+ W83792D_REG_CHASSIS) >> 5) & 0x01;
+
+ /* Update Thermal Cruise/Smart Fan I target value */
+ for (i = 0; i < 3; i++) {
+ data->thermal_cruise[i] =
+ w83792d_read_value(client,
+ W83792D_REG_THERMAL[i]) & 0x7f;
+ }
+
+ /* Update Smart Fan I/II tolerance */
+ reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
+ data->tolerance[0] = reg_tmp & 0x0f;
+ data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
+ data->tolerance[2] = w83792d_read_value(client,
+ W83792D_REG_TOLERANCE[2]) & 0x0f;
+
+ /* Update Smart Fan II temperature points */
+ for (i = 0; i < 3; i++) {
+ for (j = 0; j < 4; j++) {
+ data->sf2_points[i][j]
+ = w83792d_read_value(client,
+ W83792D_REG_POINTS[i][j]) & 0x7f;
+ }
+ }
+
+ /* Update Smart Fan II duty cycle levels */
+ for (i = 0; i < 3; i++) {
+ reg_tmp = w83792d_read_value(client,
+ W83792D_REG_LEVELS[i][0]);
+ data->sf2_levels[i][0] = reg_tmp & 0x0f;
+ data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
+ reg_tmp = w83792d_read_value(client,
+ W83792D_REG_LEVELS[i][2]);
+ data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
+ data->sf2_levels[i][3] = reg_tmp & 0x0f;
+ }
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ mutex_unlock(&data->update_lock);
+
+#ifdef DEBUG
+ w83792d_print_debug(data, dev);
+#endif
+
+ return data;
+}
+
+#ifdef DEBUG
+static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
+{
+ int i = 0, j = 0;
+ dev_dbg(dev, "==========The following is the debug message...========\n");
+ dev_dbg(dev, "9 set of Voltages: =====>\n");
+ for (i = 0; i < 9; i++) {
+ dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
+ dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
+ dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
+ }
+ dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
+ dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
+ dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
+ for (i = 0; i < 7; i++) {
+ dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
+ dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
+ dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
+ }
+ dev_dbg(dev, "3 set of Temperatures: =====>\n");
+ for (i = 0; i < 3; i++)
+ dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
+
+ for (i = 0; i < 2; i++) {
+ for (j = 0; j < 6; j++) {
+ dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
+ data->temp_add[i][j]);
+ }
+ }
+
+ for (i = 0; i < 7; i++)
+ dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
+
+ dev_dbg(dev, "==========End of the debug message...================\n");
+ dev_dbg(dev, "\n");
+}
+#endif
+
+module_i2c_driver(w83792d_driver);
+
+MODULE_AUTHOR("Shane Huang (Winbond)");
+MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
+MODULE_LICENSE("GPL");
Code Review / kvmfornfv.git / blobdiff