--- /dev/null
+/*
+ w83791d.c - Part of lm_sensors, Linux kernel modules for hardware
+ monitoring
+
+ Copyright (C) 2006 Charles Spirakis <bezaur@gmail.com>
+
+ 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.
+*/
+
+/*
+ Supports following chips:
+
+ Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
+ w83791d 10 5 3 3 0x71 0x5ca3 yes no
+
+ The w83791d chip appears to be part way between the 83781d and the
+ 83792d. Thus, this file is derived from both the w83792d.c and
+ w83781d.c files, but its output is more along the lines of the
+ 83781d (which means there are no changes to the user-mode sensors
+ program which treats the 83791d as an 83781d).
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-vid.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+#define NUMBER_OF_VIN 10
+#define NUMBER_OF_FANIN 5
+#define NUMBER_OF_TEMPIN 3
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(w83791d);
+I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
+ "{bus, clientaddr, subclientaddr1, subclientaddr2}");
+
+static int reset;
+module_param(reset, bool, 0);
+MODULE_PARM_DESC(reset, "Set to one to force a hardware chip reset");
+
+static int init;
+module_param(init, bool, 0);
+MODULE_PARM_DESC(init, "Set to one to force extra software initialization");
+
+/* The W83791D registers */
+static const u8 W83791D_REG_IN[NUMBER_OF_VIN] = {
+ 0x20, /* VCOREA in DataSheet */
+ 0x21, /* VINR0 in DataSheet */
+ 0x22, /* +3.3VIN in DataSheet */
+ 0x23, /* VDD5V in DataSheet */
+ 0x24, /* +12VIN in DataSheet */
+ 0x25, /* -12VIN in DataSheet */
+ 0x26, /* -5VIN in DataSheet */
+ 0xB0, /* 5VSB in DataSheet */
+ 0xB1, /* VBAT in DataSheet */
+ 0xB2 /* VINR1 in DataSheet */
+};
+
+static const u8 W83791D_REG_IN_MAX[NUMBER_OF_VIN] = {
+ 0x2B, /* VCOREA High Limit in DataSheet */
+ 0x2D, /* VINR0 High Limit in DataSheet */
+ 0x2F, /* +3.3VIN High Limit in DataSheet */
+ 0x31, /* VDD5V High Limit in DataSheet */
+ 0x33, /* +12VIN High Limit in DataSheet */
+ 0x35, /* -12VIN High Limit in DataSheet */
+ 0x37, /* -5VIN High Limit in DataSheet */
+ 0xB4, /* 5VSB High Limit in DataSheet */
+ 0xB6, /* VBAT High Limit in DataSheet */
+ 0xB8 /* VINR1 High Limit in DataSheet */
+};
+static const u8 W83791D_REG_IN_MIN[NUMBER_OF_VIN] = {
+ 0x2C, /* VCOREA Low Limit in DataSheet */
+ 0x2E, /* VINR0 Low Limit in DataSheet */
+ 0x30, /* +3.3VIN Low Limit in DataSheet */
+ 0x32, /* VDD5V Low Limit in DataSheet */
+ 0x34, /* +12VIN Low Limit in DataSheet */
+ 0x36, /* -12VIN Low Limit in DataSheet */
+ 0x38, /* -5VIN Low Limit in DataSheet */
+ 0xB5, /* 5VSB Low Limit in DataSheet */
+ 0xB7, /* VBAT Low Limit in DataSheet */
+ 0xB9 /* VINR1 Low Limit in DataSheet */
+};
+static const u8 W83791D_REG_FAN[NUMBER_OF_FANIN] = {
+ 0x28, /* FAN 1 Count in DataSheet */
+ 0x29, /* FAN 2 Count in DataSheet */
+ 0x2A, /* FAN 3 Count in DataSheet */
+ 0xBA, /* FAN 4 Count in DataSheet */
+ 0xBB, /* FAN 5 Count in DataSheet */
+};
+static const u8 W83791D_REG_FAN_MIN[NUMBER_OF_FANIN] = {
+ 0x3B, /* FAN 1 Count Low Limit in DataSheet */
+ 0x3C, /* FAN 2 Count Low Limit in DataSheet */
+ 0x3D, /* FAN 3 Count Low Limit in DataSheet */
+ 0xBC, /* FAN 4 Count Low Limit in DataSheet */
+ 0xBD, /* FAN 5 Count Low Limit in DataSheet */
+};
+
+static const u8 W83791D_REG_FAN_CFG[2] = {
+ 0x84, /* FAN 1/2 configuration */
+ 0x95, /* FAN 3 configuration */
+};
+
+static const u8 W83791D_REG_FAN_DIV[3] = {
+ 0x47, /* contains FAN1 and FAN2 Divisor */
+ 0x4b, /* contains FAN3 Divisor */
+ 0x5C, /* contains FAN4 and FAN5 Divisor */
+};
+
+#define W83791D_REG_BANK 0x4E
+#define W83791D_REG_TEMP2_CONFIG 0xC2
+#define W83791D_REG_TEMP3_CONFIG 0xCA
+
+static const u8 W83791D_REG_TEMP1[3] = {
+ 0x27, /* TEMP 1 in DataSheet */
+ 0x39, /* TEMP 1 Over in DataSheet */
+ 0x3A, /* TEMP 1 Hyst in DataSheet */
+};
+
+static const u8 W83791D_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 */
+};
+
+#define W83791D_REG_BEEP_CONFIG 0x4D
+
+static const u8 W83791D_REG_BEEP_CTRL[3] = {
+ 0x56, /* BEEP Control Register 1 */
+ 0x57, /* BEEP Control Register 2 */
+ 0xA3, /* BEEP Control Register 3 */
+};
+
+#define W83791D_REG_CONFIG 0x40
+#define W83791D_REG_VID_FANDIV 0x47
+#define W83791D_REG_DID_VID4 0x49
+#define W83791D_REG_WCHIPID 0x58
+#define W83791D_REG_CHIPMAN 0x4F
+#define W83791D_REG_PIN 0x4B
+#define W83791D_REG_I2C_SUBADDR 0x4A
+
+#define W83791D_REG_ALARM1 0xA9 /* realtime status register1 */
+#define W83791D_REG_ALARM2 0xAA /* realtime status register2 */
+#define W83791D_REG_ALARM3 0xAB /* realtime status register3 */
+
+#define W83791D_REG_VBAT 0x5D
+#define W83791D_REG_I2C_ADDR 0x48
+
+/* The SMBus locks itself. The Winbond W83791D has a bank select register
+ (index 0x4e), but the driver only accesses registers in bank 0. Since
+ we don't switch banks, we don't need any special code to handle
+ locking access between bank switches */
+static inline int w83791d_read(struct i2c_client *client, u8 reg)
+{
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+static inline int w83791d_write(struct i2c_client *client, u8 reg, u8 value)
+{
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* The analog voltage inputs have 16mV LSB. Since the sysfs output is
+ in mV as would be measured on the chip input pin, need to just
+ multiply/divide by 16 to translate from/to register values. */
+#define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8) / 16), 0, 255))
+#define IN_FROM_REG(val) ((val) * 16)
+
+static u8 fan_to_reg(long rpm, int div)
+{
+ if (rpm == 0)
+ return 255;
+ rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+ return SENSORS_LIMIT((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 which is 8-bit resolution, LSB = 1 degree Celsius */
+#define TEMP1_FROM_REG(val) ((val) * 1000)
+#define TEMP1_TO_REG(val) ((val) <= -128000 ? -128 : \
+ (val) >= 127000 ? 127 : \
+ (val) < 0 ? ((val) - 500) / 1000 : \
+ ((val) + 500) / 1000)
+
+/* for temp2 and temp3 which are 9-bit resolution, LSB = 0.5 degree Celsius
+ Assumes the top 8 bits are the integral amount and the bottom 8 bits
+ are the fractional amount. Since we only have 0.5 degree resolution,
+ the bottom 7 bits will always be zero */
+#define TEMP23_FROM_REG(val) ((val) / 128 * 500)
+#define TEMP23_TO_REG(val) ((val) <= -128000 ? 0x8000 : \
+ (val) >= 127500 ? 0x7F80 : \
+ (val) < 0 ? ((val) - 250) / 500 * 128 : \
+ ((val) + 250) / 500 * 128)
+
+
+#define BEEP_MASK_TO_REG(val) ((val) & 0xffffff)
+#define BEEP_MASK_FROM_REG(val) ((val) & 0xffffff)
+
+#define DIV_FROM_REG(val) (1 << (val))
+
+static u8 div_to_reg(int nr, long val)
+{
+ int i;
+ int max;
+
+ /* first three fan's divisor max out at 8, rest max out at 128 */
+ max = (nr < 3) ? 8 : 128;
+ val = SENSORS_LIMIT(val, 1, max) >> 1;
+ for (i = 0; i < 7; i++) {
+ if (val == 0)
+ break;
+ val >>= 1;
+ }
+ return (u8) i;
+}
+
+struct w83791d_data {
+ struct i2c_client client;
+ struct class_device *class_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];
+
+ /* volts */
+ u8 in[NUMBER_OF_VIN]; /* Register value */
+ u8 in_max[NUMBER_OF_VIN]; /* Register value */
+ u8 in_min[NUMBER_OF_VIN]; /* Register value */
+
+ /* fans */
+ u8 fan[NUMBER_OF_FANIN]; /* Register value */
+ u8 fan_min[NUMBER_OF_FANIN]; /* Register value */
+ u8 fan_div[NUMBER_OF_FANIN]; /* Register encoding, shifted right */
+
+ /* Temperature sensors */
+
+ s8 temp1[3]; /* current, over, thyst */
+ s16 temp_add[2][3]; /* fixed point value. Top 8 bits are the
+ integral part, bottom 8 bits are the
+ fractional part. We only use the top
+ 9 bits as the resolution is only
+ to the 0.5 degree C...
+ two sensors with three values
+ (cur, over, hyst) */
+
+ /* Misc */
+ u32 alarms; /* realtime status register encoding,combined */
+ u8 beep_enable; /* Global beep enable */
+ u32 beep_mask; /* Mask off specific beeps */
+ u8 vid; /* Register encoding, combined */
+ u8 vrm; /* hwmon-vid */
+};
+
+static int w83791d_attach_adapter(struct i2c_adapter *adapter);
+static int w83791d_detect(struct i2c_adapter *adapter, int address, int kind);
+static int w83791d_detach_client(struct i2c_client *client);
+
+static int w83791d_read(struct i2c_client *client, u8 register);
+static int w83791d_write(struct i2c_client *client, u8 register, u8 value);
+static struct w83791d_data *w83791d_update_device(struct device *dev);
+
+#ifdef DEBUG
+static void w83791d_print_debug(struct w83791d_data *data, struct device *dev);
+#endif
+
+static void w83791d_init_client(struct i2c_client *client);
+
+static struct i2c_driver w83791d_driver = {
+ .driver = {
+ .name = "w83791d",
+ },
+ .attach_adapter = w83791d_attach_adapter,
+ .detach_client = w83791d_detach_client,
+};
+
+/* following are the sysfs callback functions */
+#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); \
+ struct w83791d_data *data = w83791d_update_device(dev); \
+ int nr = sensor_attr->index; \
+ return sprintf(buf,"%d\n", IN_FROM_REG(data->reg[nr])); \
+}
+
+show_in_reg(in);
+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); \
+ struct i2c_client *client = to_i2c_client(dev); \
+ struct w83791d_data *data = i2c_get_clientdata(client); \
+ unsigned long val = simple_strtoul(buf, NULL, 10); \
+ int nr = sensor_attr->index; \
+ \
+ mutex_lock(&data->update_lock); \
+ data->in_##reg[nr] = IN_TO_REG(val); \
+ w83791d_write(client, W83791D_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);
+
+static struct sensor_device_attribute sda_in_input[] = {
+ SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
+ SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
+ SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
+ SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
+ SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
+ SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
+ SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
+ SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
+ SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
+ SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9),
+};
+
+static struct sensor_device_attribute sda_in_min[] = {
+ SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
+ SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
+ SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
+ SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3),
+ SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4),
+ SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5),
+ SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6),
+ SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7),
+ SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8),
+ SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9),
+};
+
+static struct sensor_device_attribute sda_in_max[] = {
+ SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
+ SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
+ SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
+ SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3),
+ SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4),
+ SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5),
+ SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6),
+ SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7),
+ SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8),
+ SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9),
+};
+
+#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); \
+ struct w83791d_data *data = w83791d_update_device(dev); \
+ int nr = sensor_attr->index; \
+ 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);
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83791d_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+ int nr = sensor_attr->index;
+
+ mutex_lock(&data->update_lock);
+ data->fan_min[nr] = fan_to_reg(val, DIV_FROM_REG(data->fan_div[nr]));
+ w83791d_write(client, W83791D_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 w83791d_data *data = w83791d_update_device(dev);
+ return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr]));
+}
+
+/* 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 suprise; 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);
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83791d_data *data = i2c_get_clientdata(client);
+ int nr = sensor_attr->index;
+ unsigned long min;
+ u8 tmp_fan_div;
+ u8 fan_div_reg;
+ int indx = 0;
+ u8 keep_mask = 0;
+ u8 new_shift = 0;
+
+ /* Save fan_min */
+ min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));
+
+ mutex_lock(&data->update_lock);
+ data->fan_div[nr] = div_to_reg(nr, simple_strtoul(buf, NULL, 10));
+
+ switch (nr) {
+ case 0:
+ indx = 0;
+ keep_mask = 0xcf;
+ new_shift = 4;
+ break;
+ case 1:
+ indx = 0;
+ keep_mask = 0x3f;
+ new_shift = 6;
+ break;
+ case 2:
+ indx = 1;
+ keep_mask = 0x3f;
+ new_shift = 6;
+ break;
+ case 3:
+ indx = 2;
+ keep_mask = 0xf8;
+ new_shift = 0;
+ break;
+ case 4:
+ indx = 2;
+ keep_mask = 0x8f;
+ new_shift = 4;
+ break;
+#ifdef DEBUG
+ default:
+ dev_warn(dev, "store_fan_div: Unexpected nr seen: %d\n", nr);
+ count = -EINVAL;
+ goto err_exit;
+#endif
+ }
+
+ fan_div_reg = w83791d_read(client, W83791D_REG_FAN_DIV[indx])
+ & keep_mask;
+ tmp_fan_div = (data->fan_div[nr] << new_shift) & ~keep_mask;
+
+ w83791d_write(client, W83791D_REG_FAN_DIV[indx],
+ fan_div_reg | tmp_fan_div);
+
+ /* Restore fan_min */
+ data->fan_min[nr] = fan_to_reg(min, DIV_FROM_REG(data->fan_div[nr]));
+ w83791d_write(client, W83791D_REG_FAN_MIN[nr], data->fan_min[nr]);
+
+#ifdef DEBUG
+err_exit:
+#endif
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static struct sensor_device_attribute sda_fan_input[] = {
+ SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
+ SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
+ SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
+ SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
+ SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
+};
+
+static struct sensor_device_attribute sda_fan_min[] = {
+ SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO,
+ show_fan_min, store_fan_min, 0),
+ SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO,
+ show_fan_min, store_fan_min, 1),
+ SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO,
+ show_fan_min, store_fan_min, 2),
+ SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO,
+ show_fan_min, store_fan_min, 3),
+ SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO,
+ show_fan_min, store_fan_min, 4),
+};
+
+static struct sensor_device_attribute sda_fan_div[] = {
+ SENSOR_ATTR(fan1_div, S_IWUSR | S_IRUGO,
+ show_fan_div, store_fan_div, 0),
+ SENSOR_ATTR(fan2_div, S_IWUSR | S_IRUGO,
+ show_fan_div, store_fan_div, 1),
+ SENSOR_ATTR(fan3_div, S_IWUSR | S_IRUGO,
+ show_fan_div, store_fan_div, 2),
+ SENSOR_ATTR(fan4_div, S_IWUSR | S_IRUGO,
+ show_fan_div, store_fan_div, 3),
+ SENSOR_ATTR(fan5_div, S_IWUSR | S_IRUGO,
+ show_fan_div, store_fan_div, 4),
+};
+
+/* read/write the temperature1, includes measured value and limits */
+static ssize_t show_temp1(struct device *dev, struct device_attribute *devattr,
+ char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct w83791d_data *data = w83791d_update_device(dev);
+ return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[attr->index]));
+}
+
+static ssize_t store_temp1(struct device *dev, struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83791d_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+ int nr = attr->index;
+
+ mutex_lock(&data->update_lock);
+ data->temp1[nr] = TEMP1_TO_REG(val);
+ w83791d_write(client, W83791D_REG_TEMP1[nr], data->temp1[nr]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+/* read/write temperature2-3, includes measured value and limits */
+static ssize_t show_temp23(struct device *dev, struct device_attribute *devattr,
+ char *buf)
+{
+ struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+ struct w83791d_data *data = w83791d_update_device(dev);
+ int nr = attr->nr;
+ int index = attr->index;
+ return sprintf(buf, "%d\n", TEMP23_FROM_REG(data->temp_add[nr][index]));
+}
+
+static ssize_t store_temp23(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83791d_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+ int nr = attr->nr;
+ int index = attr->index;
+
+ mutex_lock(&data->update_lock);
+ data->temp_add[nr][index] = TEMP23_TO_REG(val);
+ w83791d_write(client, W83791D_REG_TEMP_ADD[nr][index * 2],
+ data->temp_add[nr][index] >> 8);
+ w83791d_write(client, W83791D_REG_TEMP_ADD[nr][index * 2 + 1],
+ data->temp_add[nr][index] & 0x80);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static struct sensor_device_attribute_2 sda_temp_input[] = {
+ SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0),
+ SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0),
+ SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0),
+};
+
+static struct sensor_device_attribute_2 sda_temp_max[] = {
+ SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
+ show_temp1, store_temp1, 0, 1),
+ SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR,
+ show_temp23, store_temp23, 0, 1),
+ SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR,
+ show_temp23, store_temp23, 1, 1),
+};
+
+static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
+ SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
+ show_temp1, store_temp1, 0, 2),
+ SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
+ show_temp23, store_temp23, 0, 2),
+ SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
+ show_temp23, store_temp23, 1, 2),
+};
+
+
+/* get reatime status of all sensors items: voltage, temp, fan */
+static ssize_t show_alarms_reg(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct w83791d_data *data = w83791d_update_device(dev);
+ return sprintf(buf, "%u\n", data->alarms);
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
+
+/* Beep control */
+
+#define GLOBAL_BEEP_ENABLE_SHIFT 15
+#define GLOBAL_BEEP_ENABLE_MASK (1 << GLOBAL_BEEP_ENABLE_SHIFT)
+
+static ssize_t show_beep_enable(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct w83791d_data *data = w83791d_update_device(dev);
+ return sprintf(buf, "%d\n", data->beep_enable);
+}
+
+static ssize_t show_beep_mask(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct w83791d_data *data = w83791d_update_device(dev);
+ return sprintf(buf, "%d\n", BEEP_MASK_FROM_REG(data->beep_mask));
+}
+
+
+static ssize_t store_beep_mask(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83791d_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+ int i;
+
+ mutex_lock(&data->update_lock);
+
+ /* The beep_enable state overrides any enabling request from
+ the masks */
+ data->beep_mask = BEEP_MASK_TO_REG(val) & ~GLOBAL_BEEP_ENABLE_MASK;
+ data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT);
+
+ val = data->beep_mask;
+
+ for (i = 0; i < 3; i++) {
+ w83791d_write(client, W83791D_REG_BEEP_CTRL[i], (val & 0xff));
+ val >>= 8;
+ }
+
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t store_beep_enable(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83791d_data *data = i2c_get_clientdata(client);
+ long val = simple_strtol(buf, NULL, 10);
+
+ mutex_lock(&data->update_lock);
+
+ data->beep_enable = val ? 1 : 0;
+
+ /* Keep the full mask value in sync with the current enable */
+ data->beep_mask &= ~GLOBAL_BEEP_ENABLE_MASK;
+ data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT);
+
+ /* The global control is in the second beep control register
+ so only need to update that register */
+ val = (data->beep_mask >> 8) & 0xff;
+
+ w83791d_write(client, W83791D_REG_BEEP_CTRL[1], val);
+
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static struct sensor_device_attribute sda_beep_ctrl[] = {
+ SENSOR_ATTR(beep_enable, S_IRUGO | S_IWUSR,
+ show_beep_enable, store_beep_enable, 0),
+ SENSOR_ATTR(beep_mask, S_IRUGO | S_IWUSR,
+ show_beep_mask, store_beep_mask, 1)
+};
+
+/* cpu voltage regulation information */
+static ssize_t show_vid_reg(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct w83791d_data *data = w83791d_update_device(dev);
+ return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
+}
+
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
+
+static ssize_t show_vrm_reg(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct w83791d_data *data = w83791d_update_device(dev);
+ return sprintf(buf, "%d\n", data->vrm);
+}
+
+static ssize_t store_vrm_reg(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83791d_data *data = i2c_get_clientdata(client);
+ unsigned long val = simple_strtoul(buf, NULL, 10);
+
+ /* No lock needed as vrm is internal to the driver
+ (not read from a chip register) and so is not
+ updated in w83791d_update_device() */
+ data->vrm = val;
+
+ return count;
+}
+
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
+
+/* This function is called when:
+ * w83791d_driver is inserted (when this module is loaded), for each
+ available adapter
+ * when a new adapter is inserted (and w83791d_driver is still present) */
+static int w83791d_attach_adapter(struct i2c_adapter *adapter)
+{
+ if (!(adapter->class & I2C_CLASS_HWMON))
+ return 0;
+ return i2c_probe(adapter, &addr_data, w83791d_detect);
+}
+
+
+static int w83791d_create_subclient(struct i2c_adapter *adapter,
+ struct i2c_client *client, int addr,
+ struct i2c_client **sub_cli)
+{
+ int err;
+ struct i2c_client *sub_client;
+
+ (*sub_cli) = sub_client =
+ kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
+ if (!(sub_client)) {
+ return -ENOMEM;
+ }
+ sub_client->addr = 0x48 + addr;
+ i2c_set_clientdata(sub_client, NULL);
+ sub_client->adapter = adapter;
+ sub_client->driver = &w83791d_driver;
+ strlcpy(sub_client->name, "w83791d subclient", I2C_NAME_SIZE);
+ if ((err = i2c_attach_client(sub_client))) {
+ dev_err(&client->dev, "subclient registration "
+ "at address 0x%x failed\n", sub_client->addr);
+ kfree(sub_client);
+ return err;
+ }
+ return 0;
+}
+
+
+static int w83791d_detect_subclients(struct i2c_adapter *adapter, int address,
+ int kind, struct i2c_client *client)
+{
+ struct w83791d_data *data = i2c_get_clientdata(client);
+ int i, id, err;
+ u8 val;
+
+ 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(&client->dev,
+ "invalid subclient "
+ "address %d; must be 0x48-0x4f\n",
+ force_subclients[i]);
+ err = -ENODEV;
+ goto error_sc_0;
+ }
+ }
+ w83791d_write(client, W83791D_REG_I2C_SUBADDR,
+ (force_subclients[2] & 0x07) |
+ ((force_subclients[3] & 0x07) << 4));
+ }
+
+ val = w83791d_read(client, W83791D_REG_I2C_SUBADDR);
+ if (!(val & 0x08)) {
+ err = w83791d_create_subclient(adapter, client,
+ val & 0x7, &data->lm75[0]);
+ if (err < 0)
+ goto error_sc_0;
+ }
+ if (!(val & 0x80)) {
+ if ((data->lm75[0] != NULL) &&
+ ((val & 0x7) == ((val >> 4) & 0x7))) {
+ dev_err(&client->dev,
+ "duplicate addresses 0x%x, "
+ "use force_subclient\n",
+ data->lm75[0]->addr);
+ err = -ENODEV;
+ goto error_sc_1;
+ }
+ err = w83791d_create_subclient(adapter, client,
+ (val >> 4) & 0x7, &data->lm75[1]);
+ if (err < 0)
+ goto error_sc_1;
+ }
+
+ return 0;
+
+/* Undo inits in case of errors */
+
+error_sc_1:
+ if (data->lm75[0] != NULL) {
+ i2c_detach_client(data->lm75[0]);
+ kfree(data->lm75[0]);
+ }
+error_sc_0:
+ return err;
+}
+
+
+static int w83791d_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+ struct i2c_client *client;
+ struct device *dev;
+ struct w83791d_data *data;
+ int i, val1, val2;
+ int err = 0;
+ const char *client_name = "";
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+ goto error0;
+ }
+
+ /* 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 w83791d_{read,write}_value. */
+ if (!(data = kzalloc(sizeof(struct w83791d_data), GFP_KERNEL))) {
+ err = -ENOMEM;
+ goto error0;
+ }
+
+ client = &data->client;
+ dev = &client->dev;
+ i2c_set_clientdata(client, data);
+ client->addr = address;
+ client->adapter = adapter;
+ client->driver = &w83791d_driver;
+ mutex_init(&data->update_lock);
+
+ /* Now, we do the remaining detection. */
+
+ /* The w83791d may be stuck in some other bank than bank 0. This may
+ make reading other information impossible. Specify a force=...
+ parameter, and the Winbond will be reset to the right bank. */
+ if (kind < 0) {
+ if (w83791d_read(client, W83791D_REG_CONFIG) & 0x80) {
+ dev_dbg(dev, "Detection failed at step 1\n");
+ goto error1;
+ }
+ val1 = w83791d_read(client, W83791D_REG_BANK);
+ val2 = w83791d_read(client, W83791D_REG_CHIPMAN);
+ /* Check for Winbond ID if in bank 0 */
+ if (!(val1 & 0x07)) {
+ /* yes it is Bank0 */
+ if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
+ ((val1 & 0x80) && (val2 != 0x5c))) {
+ dev_dbg(dev, "Detection failed at step 2\n");
+ goto error1;
+ }
+ }
+ /* If Winbond chip, address of chip and W83791D_REG_I2C_ADDR
+ should match */
+ if (w83791d_read(client, W83791D_REG_I2C_ADDR) != address) {
+ dev_dbg(dev, "Detection failed at step 3\n");
+ goto error1;
+ }
+ }
+
+ /* We either have a force parameter or we have reason to
+ believe it is a Winbond chip. Either way, we want bank 0 and
+ Vendor ID high byte */
+ val1 = w83791d_read(client, W83791D_REG_BANK) & 0x78;
+ w83791d_write(client, W83791D_REG_BANK, val1 | 0x80);
+
+ /* Verify it is a Winbond w83791d */
+ if (kind <= 0) {
+ /* get vendor ID */
+ val2 = w83791d_read(client, W83791D_REG_CHIPMAN);
+ if (val2 != 0x5c) { /* the vendor is NOT Winbond */
+ dev_dbg(dev, "Detection failed at step 4\n");
+ goto error1;
+ }
+ val1 = w83791d_read(client, W83791D_REG_WCHIPID);
+ if (val1 == 0x71) {
+ kind = w83791d;
+ } else {
+ if (kind == 0)
+ dev_warn(dev,
+ "w83791d: Ignoring 'force' parameter "
+ "for unknown chip at adapter %d, "
+ "address 0x%02x\n",
+ i2c_adapter_id(adapter), address);
+ goto error1;
+ }
+ }
+
+ if (kind == w83791d) {
+ client_name = "w83791d";
+ } else {
+ dev_err(dev, "w83791d: Internal error: unknown kind (%d)?!?",
+ kind);
+ goto error1;
+ }
+
+#ifdef DEBUG
+ val1 = w83791d_read(client, W83791D_REG_DID_VID4);
+ dev_dbg(dev, "Device ID version: %d.%d (0x%02x)\n",
+ (val1 >> 5) & 0x07, (val1 >> 1) & 0x0f, val1);
+#endif
+
+ /* Fill in the remaining client fields and put into the global list */
+ strlcpy(client->name, client_name, I2C_NAME_SIZE);
+
+ /* Tell the I2C layer a new client has arrived */
+ if ((err = i2c_attach_client(client)))
+ goto error1;
+
+ if ((err = w83791d_detect_subclients(adapter, address, kind, client)))
+ goto error2;
+
+ /* Initialize the chip */
+ w83791d_init_client(client);
+
+ /* If the fan_div is changed, make sure there is a rational
+ fan_min in place */
+ for (i = 0; i < NUMBER_OF_FANIN; i++) {
+ data->fan_min[i] = w83791d_read(client, W83791D_REG_FAN_MIN[i]);
+ }
+
+ /* Register sysfs hooks */
+ data->class_dev = hwmon_device_register(dev);
+ if (IS_ERR(data->class_dev)) {
+ err = PTR_ERR(data->class_dev);
+ goto error3;
+ }
+
+ for (i = 0; i < NUMBER_OF_VIN; i++) {
+ device_create_file(dev, &sda_in_input[i].dev_attr);
+ device_create_file(dev, &sda_in_min[i].dev_attr);
+ device_create_file(dev, &sda_in_max[i].dev_attr);
+ }
+
+ for (i = 0; i < NUMBER_OF_FANIN; i++) {
+ device_create_file(dev, &sda_fan_input[i].dev_attr);
+ device_create_file(dev, &sda_fan_div[i].dev_attr);
+ device_create_file(dev, &sda_fan_min[i].dev_attr);
+ }
+
+ for (i = 0; i < NUMBER_OF_TEMPIN; i++) {
+ device_create_file(dev, &sda_temp_input[i].dev_attr);
+ device_create_file(dev, &sda_temp_max[i].dev_attr);
+ device_create_file(dev, &sda_temp_max_hyst[i].dev_attr);
+ }
+
+ device_create_file(dev, &dev_attr_alarms);
+
+ for (i = 0; i < ARRAY_SIZE(sda_beep_ctrl); i++) {
+ device_create_file(dev, &sda_beep_ctrl[i].dev_attr);
+ }
+
+ device_create_file(dev, &dev_attr_cpu0_vid);
+ device_create_file(dev, &dev_attr_vrm);
+
+ return 0;
+
+error3:
+ if (data->lm75[0] != NULL) {
+ i2c_detach_client(data->lm75[0]);
+ kfree(data->lm75[0]);
+ }
+ if (data->lm75[1] != NULL) {
+ i2c_detach_client(data->lm75[1]);
+ kfree(data->lm75[1]);
+ }
+error2:
+ i2c_detach_client(client);
+error1:
+ kfree(data);
+error0:
+ return err;
+}
+
+static int w83791d_detach_client(struct i2c_client *client)
+{
+ struct w83791d_data *data = i2c_get_clientdata(client);
+ int err;
+
+ /* main client */
+ if (data)
+ hwmon_device_unregister(data->class_dev);
+
+ if ((err = i2c_detach_client(client)))
+ return err;
+
+ /* main client */
+ if (data)
+ kfree(data);
+ /* subclient */
+ else
+ kfree(client);
+
+ return 0;
+}
+
+static void w83791d_init_client(struct i2c_client *client)
+{
+ struct w83791d_data *data = i2c_get_clientdata(client);
+ u8 tmp;
+ u8 old_beep;
+
+ /* The difference between reset and init is that reset
+ does a hard reset of the chip via index 0x40, bit 7,
+ but init simply forces certain registers to have "sane"
+ values. The hope is that the BIOS has done the right
+ thing (which is why the default is reset=0, init=0),
+ but if not, reset is the hard hammer and init
+ is the soft mallet both of which are trying to whack
+ things into place...
+ NOTE: The data sheet makes a distinction between
+ "power on defaults" and "reset by MR". As far as I can tell,
+ the hard reset puts everything into a power-on state so I'm
+ not sure what "reset by MR" means or how it can happen.
+ */
+ if (reset || init) {
+ /* keep some BIOS settings when we... */
+ old_beep = w83791d_read(client, W83791D_REG_BEEP_CONFIG);
+
+ if (reset) {
+ /* ... reset the chip and ... */
+ w83791d_write(client, W83791D_REG_CONFIG, 0x80);
+ }
+
+ /* ... disable power-on abnormal beep */
+ w83791d_write(client, W83791D_REG_BEEP_CONFIG, old_beep | 0x80);
+
+ /* disable the global beep (not done by hard reset) */
+ tmp = w83791d_read(client, W83791D_REG_BEEP_CTRL[1]);
+ w83791d_write(client, W83791D_REG_BEEP_CTRL[1], tmp & 0xef);
+
+ if (init) {
+ /* Make sure monitoring is turned on for add-ons */
+ tmp = w83791d_read(client, W83791D_REG_TEMP2_CONFIG);
+ if (tmp & 1) {
+ w83791d_write(client, W83791D_REG_TEMP2_CONFIG,
+ tmp & 0xfe);
+ }
+
+ tmp = w83791d_read(client, W83791D_REG_TEMP3_CONFIG);
+ if (tmp & 1) {
+ w83791d_write(client, W83791D_REG_TEMP3_CONFIG,
+ tmp & 0xfe);
+ }
+
+ /* Start monitoring */
+ tmp = w83791d_read(client, W83791D_REG_CONFIG) & 0xf7;
+ w83791d_write(client, W83791D_REG_CONFIG, tmp | 0x01);
+ }
+ }
+
+ data->vrm = vid_which_vrm();
+}
+
+static struct w83791d_data *w83791d_update_device(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct w83791d_data *data = i2c_get_clientdata(client);
+ int i, j;
+ u8 reg_array_tmp[3];
+
+ mutex_lock(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + (HZ * 3))
+ || !data->valid) {
+ dev_dbg(dev, "Starting w83791d device update\n");
+
+ /* Update the voltages measured value and limits */
+ for (i = 0; i < NUMBER_OF_VIN; i++) {
+ data->in[i] = w83791d_read(client,
+ W83791D_REG_IN[i]);
+ data->in_max[i] = w83791d_read(client,
+ W83791D_REG_IN_MAX[i]);
+ data->in_min[i] = w83791d_read(client,
+ W83791D_REG_IN_MIN[i]);
+ }
+
+ /* Update the fan counts and limits */
+ for (i = 0; i < NUMBER_OF_FANIN; i++) {
+ /* Update the Fan measured value and limits */
+ data->fan[i] = w83791d_read(client,
+ W83791D_REG_FAN[i]);
+ data->fan_min[i] = w83791d_read(client,
+ W83791D_REG_FAN_MIN[i]);
+ }
+
+ /* Update the fan divisor */
+ for (i = 0; i < 3; i++) {
+ reg_array_tmp[i] = w83791d_read(client,
+ W83791D_REG_FAN_DIV[i]);
+ }
+ data->fan_div[0] = (reg_array_tmp[0] >> 4) & 0x03;
+ data->fan_div[1] = (reg_array_tmp[0] >> 6) & 0x03;
+ data->fan_div[2] = (reg_array_tmp[1] >> 6) & 0x03;
+ data->fan_div[3] = reg_array_tmp[2] & 0x07;
+ data->fan_div[4] = (reg_array_tmp[2] >> 4) & 0x07;
+
+ /* Update the first temperature sensor */
+ for (i = 0; i < 3; i++) {
+ data->temp1[i] = w83791d_read(client,
+ W83791D_REG_TEMP1[i]);
+ }
+
+ /* Update the rest of the temperature sensors */
+ for (i = 0; i < 2; i++) {
+ for (j = 0; j < 3; j++) {
+ data->temp_add[i][j] =
+ (w83791d_read(client,
+ W83791D_REG_TEMP_ADD[i][j * 2]) << 8) |
+ w83791d_read(client,
+ W83791D_REG_TEMP_ADD[i][j * 2 + 1]);
+ }
+ }
+
+ /* Update the realtime status */
+ data->alarms =
+ w83791d_read(client, W83791D_REG_ALARM1) +
+ (w83791d_read(client, W83791D_REG_ALARM2) << 8) +
+ (w83791d_read(client, W83791D_REG_ALARM3) << 16);
+
+ /* Update the beep configuration information */
+ data->beep_mask =
+ w83791d_read(client, W83791D_REG_BEEP_CTRL[0]) +
+ (w83791d_read(client, W83791D_REG_BEEP_CTRL[1]) << 8) +
+ (w83791d_read(client, W83791D_REG_BEEP_CTRL[2]) << 16);
+
+ data->beep_enable =
+ (data->beep_mask >> GLOBAL_BEEP_ENABLE_SHIFT) & 0x01;
+
+ /* Update the cpu voltage information */
+ i = w83791d_read(client, W83791D_REG_VID_FANDIV);
+ data->vid = i & 0x0f;
+ data->vid |= (w83791d_read(client, W83791D_REG_DID_VID4) & 0x01)
+ << 4;
+
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ mutex_unlock(&data->update_lock);
+
+#ifdef DEBUG
+ w83791d_print_debug(data, dev);
+#endif
+
+ return data;
+}
+
+#ifdef DEBUG
+static void w83791d_print_debug(struct w83791d_data *data, struct device *dev)
+{
+ int i = 0, j = 0;
+
+ dev_dbg(dev, "======Start of w83791d debug values======\n");
+ dev_dbg(dev, "%d set of Voltages: ===>\n", NUMBER_OF_VIN);
+ for (i = 0; i < NUMBER_OF_VIN; i++) {
+ dev_dbg(dev, "vin[%d] is: 0x%02x\n", i, data->in[i]);
+ dev_dbg(dev, "vin[%d] min is: 0x%02x\n", i, data->in_min[i]);
+ dev_dbg(dev, "vin[%d] max is: 0x%02x\n", i, data->in_max[i]);
+ }
+ dev_dbg(dev, "%d set of Fan Counts/Divisors: ===>\n", NUMBER_OF_FANIN);
+ for (i = 0; i < NUMBER_OF_FANIN; i++) {
+ dev_dbg(dev, "fan[%d] is: 0x%02x\n", i, data->fan[i]);
+ dev_dbg(dev, "fan[%d] min is: 0x%02x\n", i, data->fan_min[i]);
+ dev_dbg(dev, "fan_div[%d] is: 0x%02x\n", i, data->fan_div[i]);
+ }
+
+ /* temperature math is signed, but only print out the
+ bits that matter */
+ dev_dbg(dev, "%d set of Temperatures: ===>\n", NUMBER_OF_TEMPIN);
+ for (i = 0; i < 3; i++) {
+ dev_dbg(dev, "temp1[%d] is: 0x%02x\n", i, (u8) data->temp1[i]);
+ }
+ for (i = 0; i < 2; i++) {
+ for (j = 0; j < 3; j++) {
+ dev_dbg(dev, "temp_add[%d][%d] is: 0x%04x\n", i, j,
+ (u16) data->temp_add[i][j]);
+ }
+ }
+
+ dev_dbg(dev, "Misc Information: ===>\n");
+ dev_dbg(dev, "alarm is: 0x%08x\n", data->alarms);
+ dev_dbg(dev, "beep_mask is: 0x%08x\n", data->beep_mask);
+ dev_dbg(dev, "beep_enable is: %d\n", data->beep_enable);
+ dev_dbg(dev, "vid is: 0x%02x\n", data->vid);
+ dev_dbg(dev, "vrm is: 0x%02x\n", data->vrm);
+ dev_dbg(dev, "=======End of w83791d debug values========\n");
+ dev_dbg(dev, "\n");
+}
+#endif
+
+static int __init sensors_w83791d_init(void)
+{
+ return i2c_add_driver(&w83791d_driver);
+}
+
+static void __exit sensors_w83791d_exit(void)
+{
+ i2c_del_driver(&w83791d_driver);
+}
+
+MODULE_AUTHOR("Charles Spirakis <bezaur@gmail.com>");
+MODULE_DESCRIPTION("W83791D driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83791d_init);
+module_exit(sensors_w83791d_exit);
git://git.onelab.eu / linux-2.6.git / blobdiff