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Diffstat (limited to 'drivers/hwmon/w83792d.c')
| -rw-r--r-- | drivers/hwmon/w83792d.c | 1633 |
1 files changed, 1633 insertions, 0 deletions
diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c new file mode 100644 index 000000000000..fa43b6fd1212 --- /dev/null +++ b/drivers/hwmon/w83792d.c @@ -0,0 +1,1633 @@ +/* + w83792d.c - Part of lm_sensors, Linux kernel modules for hardware + monitoring + Copyright (C) 2004, 2005 Winbond Electronics Corp. + Chunhao Huang <DZShen@Winbond.com.tw>, + Rudolf Marek <r.marek@sh.cvut.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/config.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/i2c-sensor.h> +#include <linux/i2c-vid.h> +#include <linux/hwmon-sysfs.h> + +/* Addresses to scan */ +static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; + +/* Insmod parameters */ +SENSORS_INSMOD_1(w83792d); +I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: " + "{bus, clientaddr, subclientaddr1, subclientaddr2}"); + +static int 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_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 = 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 */ +#define TEMP1_TO_REG(val) (SENSORS_LIMIT(((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 addtional 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) \ + (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ + : (val)) / 1000, 0, 0xff)) +#define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00) + +#define PWM_FROM_REG(val) (val) +#define PWM_TO_REG(val) (SENSORS_LIMIT((val),0,255)) +#define DIV_FROM_REG(val) (1 << (val)) + +static inline u8 +DIV_TO_REG(long val) +{ + int i; + val = SENSORS_LIMIT(val, 1, 128) >> 1; + for (i = 0; i < 6; i++) { + if (val == 0) + break; + val >>= 1; + } + return ((u8) i); +} + +struct w83792d_data { + struct i2c_client client; + struct semaphore lock; + enum chips type; + + struct semaphore 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 */ + u8 low_bits[2]; /* Additional resolution to voltage in0-6 */ + 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]; + u8 pwm_mode[7]; /* indicates PWM or DC mode: 1->PWM; 0->DC */ + u32 alarms; /* realtime status register encoding,combined */ + u8 chassis; /* Chassis status */ + u8 chassis_clear; /* CLR_CHS, clear chassis intrusion detection */ + 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_attach_adapter(struct i2c_adapter *adapter); +static int w83792d_detect(struct i2c_adapter *adapter, int address, int kind); +static int w83792d_detach_client(struct i2c_client *client); + +static int w83792d_read_value(struct i2c_client *client, u8 register); +static int w83792d_write_value(struct i2c_client *client, u8 register, + u8 value); +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 struct i2c_driver w83792d_driver = { + .owner = THIS_MODULE, + .name = "w83792d", + .flags = I2C_DF_NOTIFY, + .attach_adapter = w83792d_attach_adapter, + .detach_client = w83792d_detach_client, +}; + +static long in_count_from_reg(int nr, struct w83792d_data *data) +{ + u16 vol_count = data->in[nr]; + u16 low_bits = 0; + vol_count = (vol_count << 2); + switch (nr) + { + case 0: /* vin0 */ + low_bits = (data->low_bits[0]) & 0x03; + break; + case 1: /* vin1 */ + low_bits = ((data->low_bits[0]) & 0x0c) >> 2; + break; + case 2: /* vin2 */ + low_bits = ((data->low_bits[0]) & 0x30) >> 4; + break; + case 3: /* vin3 */ + low_bits = ((data->low_bits[0]) & 0xc0) >> 6; + break; + case 4: /* vin4 */ + low_bits = (data->low_bits[1]) & 0x03; + break; + case 5: /* vin5 */ + low_bits = ((data->low_bits[1]) & 0x0c) >> 2; + break; + case 6: /* vin6 */ + low_bits = ((data->low_bits[1]) & 0x30) >> 4; + default: + break; + } + vol_count = vol_count | low_bits; + return vol_count; +} + +/* 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); \ + u32 val; \ + \ + val = simple_strtoul(buf, NULL, 10); \ + data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \ + w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \ + \ + return count; \ +} +store_in_reg(MIN, min); +store_in_reg(MAX, max); + +#define sysfs_in_reg(offset) \ +static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in, \ + NULL, offset); \ +static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ + show_in_min, store_in_min, offset); \ +static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ + show_in_max, store_in_max, offset); + +sysfs_in_reg(0); +sysfs_in_reg(1); +sysfs_in_reg(2); +sysfs_in_reg(3); +sysfs_in_reg(4); +sysfs_in_reg(5); +sysfs_in_reg(6); +sysfs_in_reg(7); +sysfs_in_reg(8); + +#define device_create_file_in(client, offset) \ +do { \ +device_create_file(&client->dev, &sensor_dev_attr_in##offset##_input.dev_attr); \ +device_create_file(&client->dev, &sensor_dev_attr_in##offset##_max.dev_attr); \ +device_create_file(&client->dev, &sensor_dev_attr_in##offset##_min.dev_attr); \ +} while (0) + +#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); + u32 val; + + val = simple_strtoul(buf, NULL, 10); + 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]); + + 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 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); + 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; + + /* Save fan_min */ + min = FAN_FROM_REG(data->fan_min[nr], + DIV_FROM_REG(data->fan_div[nr])); + + data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10)); + + 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]); + + return count; +} + +#define sysfs_fan(offset) \ +static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL, \ + offset); \ +static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ + show_fan_div, store_fan_div, offset); \ +static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ + show_fan_min, store_fan_min, offset); + +sysfs_fan(1); +sysfs_fan(2); +sysfs_fan(3); +sysfs_fan(4); +sysfs_fan(5); +sysfs_fan(6); +sysfs_fan(7); + +#define device_create_file_fan(client, offset) \ +do { \ +device_create_file(&client->dev, &sensor_dev_attr_fan##offset##_input.dev_attr); \ +device_create_file(&client->dev, &sensor_dev_attr_fan##offset##_div.dev_attr); \ +device_create_file(&client->dev, &sensor_dev_attr_fan##offset##_min.dev_attr); \ +} while (0) + + +/* 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); + s32 val; + + val = simple_strtol(buf, NULL, 10); + + data->temp1[nr] = TEMP1_TO_REG(val); + w83792d_write_value(client, W83792D_REG_TEMP1[nr], + data->temp1[nr]); + + return count; +} + + +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp1, NULL, 0); +static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp1, + store_temp1, 1); +static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp1, + store_temp1, 2); + +#define device_create_file_temp1(client) \ +do { \ +device_create_file(&client->dev, &sensor_dev_attr_temp1_input.dev_attr); \ +device_create_file(&client->dev, &sensor_dev_attr_temp1_max.dev_attr); \ +device_create_file(&client->dev, &sensor_dev_attr_temp1_max_hyst.dev_attr); \ +} while (0) + + +/* 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); + s32 val; + + val = simple_strtol(buf, NULL, 10); + + 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]); + + return count; +} + +#define sysfs_temp23(name,idx) \ +static SENSOR_DEVICE_ATTR_2(name##_input, S_IRUGO, show_temp23, NULL, \ + idx, 0); \ +static SENSOR_DEVICE_ATTR_2(name##_max, S_IRUGO | S_IWUSR, \ + show_temp23, store_temp23, idx, 2); \ +static SENSOR_DEVICE_ATTR_2(name##_max_hyst, S_IRUGO | S_IWUSR, \ + show_temp23, store_temp23, idx, 4); + +sysfs_temp23(temp2,0) +sysfs_temp23(temp3,1) + +#define device_create_file_temp_add(client, offset) \ +do { \ +device_create_file(&client->dev, &sensor_dev_attr_temp##offset##_input.dev_attr); \ +device_create_file(&client->dev, &sensor_dev_attr_temp##offset##_max.dev_attr); \ +device_create_file(&client->dev, \ +&sensor_dev_attr_temp##offset##_max_hyst.dev_attr); \ +} while (0) + + +/* 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 w83792d_data *data = w83792d_update_device(dev); + return sprintf(buf, "%d\n", data->alarms); +} + +static +DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); +#define device_create_file_alarms(client) \ +device_create_file(&client->dev, &dev_attr_alarms); + + + +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, "%ld\n", (long) PWM_FROM_REG(data->pwm[nr-1])); +} + +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 - 1; + struct i2c_client *client = to_i2c_client(dev); + struct w83792d_data *data = i2c_get_clientdata(client); + u32 val; + + val = simple_strtoul(buf, NULL, 10); + data->pwm[nr] = PWM_TO_REG(val); + w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); + + 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); + u32 val; + u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp; + + val = simple_strtoul(buf, NULL, 10); + 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; + default: + return -EINVAL; + } + 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); + + return count; +} + +#define sysfs_pwm(offset) \ +static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ + show_pwm, store_pwm, offset); \ +static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ + show_pwmenable, store_pwmenable, offset); \ + +sysfs_pwm(1); +sysfs_pwm(2); +sysfs_pwm(3); + + +#define device_create_file_pwm(client, offset) \ +do { \ +device_create_file(&client->dev, &sensor_dev_attr_pwm##offset.dev_attr); \ +} while (0) + +#define device_create_file_pwmenable(client, offset) \ +do { \ +device_create_file(&client->dev, &sensor_dev_attr_pwm##offset##_enable.dev_attr); \ +} while (0) + + +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_mode[nr-1]); +} + +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 - 1; + struct i2c_client *client = to_i2c_client(dev); + struct w83792d_data *data = i2c_get_clientdata(client); + u32 val; + u8 pwm_mode_mask = 0; + + val = simple_strtoul(buf, NULL, 10); + data->pwm_mode[nr] = SENSORS_LIMIT(val, 0, 1); + pwm_mode_mask = w83792d_read_value(client, + W83792D_REG_PWM[nr]) & 0x7f; + w83792d_write_value(client, W83792D_REG_PWM[nr], + ((data->pwm_mode[nr]) << 7) | pwm_mode_mask); + + return count; +} + +#define sysfs_pwm_mode(offset) \ +static SENSOR_DEVICE_ATTR(pwm##offset##_mode, S_IRUGO | S_IWUSR, \ + show_pwm_mode, store_pwm_mode, offset); + +sysfs_pwm_mode(1); +sysfs_pwm_mode(2); +sysfs_pwm_mode(3); + +#define device_create_file_pwm_mode(client, offset) \ +do { \ +device_create_file(&client->dev, &sensor_dev_attr_pwm##offset##_mode.dev_attr); \ +} while (0) + + +static ssize_t +show_regs_chassis(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 DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL); + +#define device_create_file_chassis(client) \ +do { \ +device_create_file(&client->dev, &dev_attr_chassis); \ +} while (0) + + +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_clear); +} + +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); + u32 val; + u8 temp1 = 0, temp2 = 0; + + val = simple_strtoul(buf, NULL, 10); + + data->chassis_clear = SENSORS_LIMIT(val, 0 ,1); + temp1 = ((data->chassis_clear) << 7) & 0x80; + temp2 = w83792d_read_value(client, + W83792D_REG_CHASSIS_CLR) & 0x7f; + w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2); + + return count; +} + +static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR, + show_chassis_clear, store_chassis_clear); + +#define device_create_file_chassis_clear(client) \ +do { \ +device_create_file(&client->dev, &dev_attr_chassis_clear); \ +} while (0) + + + +/* 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); + u32 val; + u8 target_tmp=0, target_mask=0; + + val = simple_strtoul(buf, NULL, 10); + target_tmp = val; + target_tmp = target_tmp & 0x7f; + target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80; + data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255); + w83792d_write_value(client, W83792D_REG_THERMAL[nr], + (data->thermal_cruise[nr]) | target_mask); + + return count; +} + +#define sysfs_thermal_cruise(offset) \ +static SENSOR_DEVICE_ATTR(thermal_cruise##offset, S_IRUGO | S_IWUSR, \ + show_thermal_cruise, store_thermal_cruise, offset); + +sysfs_thermal_cruise(1); +sysfs_thermal_cruise(2); +sysfs_thermal_cruise(3); + +#define device_create_file_thermal_cruise(client, offset) \ +do { \ +device_create_file(&client->dev, \ +&sensor_dev_attr_thermal_cruise##offset.dev_attr); \ +} while (0) + + +/* 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); + u32 val; + u8 tol_tmp, tol_mask; + + val = simple_strtoul(buf, NULL, 10); + tol_mask = w83792d_read_value(client, + W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0); + tol_tmp = SENSORS_LIMIT(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); + + return count; +} + +#define sysfs_tolerance(offset) \ +static SENSOR_DEVICE_ATTR(tolerance##offset, S_IRUGO | S_IWUSR, \ + show_tolerance, store_tolerance, offset); + +sysfs_tolerance(1); +sysfs_tolerance(2); +sysfs_tolerance(3); + +#define device_create_file_tolerance(client, offset) \ +do { \ +device_create_file(&client->dev, &sensor_dev_attr_tolerance##offset.dev_attr); \ +} while (0) + + +/* 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); + u32 val; + u8 mask_tmp = 0; + + val = simple_strtoul(buf, NULL, 10); + data->sf2_points[index][nr] = SENSORS_LIMIT(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]); + + return count; +} + +#define sysfs_sf2_point(offset, index) \ +static SENSOR_DEVICE_ATTR_2(sf2_point##offset##_fan##index, S_IRUGO | S_IWUSR, \ + show_sf2_point, store_sf2_point, offset, index); + +sysfs_sf2_point(1, 1); /* Fan1 */ +sysfs_sf2_point(2, 1); /* Fan1 */ +sysfs_sf2_point(3, 1); /* Fan1 */ +sysfs_sf2_point(4, 1); /* Fan1 */ +sysfs_sf2_point(1, 2); /* Fan2 */ +sysfs_sf2_point(2, 2); /* Fan2 */ +sysfs_sf2_point(3, 2); /* Fan2 */ +sysfs_sf2_point(4, 2); /* Fan2 */ +sysfs_sf2_point(1, 3); /* Fan3 */ +sysfs_sf2_point(2, 3); /* Fan3 */ +sysfs_sf2_point(3, 3); /* Fan3 */ +sysfs_sf2_point(4, 3); /* Fan3 */ + +#define device_create_file_sf2_point(client, offset, index) \ +do { \ +device_create_file(&client->dev, \ +&sensor_dev_attr_sf2_point##offset##_fan##index.dev_attr); \ +} while (0) + + +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); + u32 val; + u8 mask_tmp=0, level_tmp=0; + + val = simple_strtoul(buf, NULL, 10); + data->sf2_levels[index][nr] = SENSORS_LIMIT((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); + + return count; +} + +#define sysfs_sf2_level(offset, index) \ +static SENSOR_DEVICE_ATTR_2(sf2_level##offset##_fan##index, S_IRUGO | S_IWUSR, \ + show_sf2_level, store_sf2_level, offset, index); + +sysfs_sf2_level(1, 1); /* Fan1 */ +sysfs_sf2_level(2, 1); /* Fan1 */ +sysfs_sf2_level(3, 1); /* Fan1 */ +sysfs_sf2_level(1, 2); /* Fan2 */ +sysfs_sf2_level(2, 2); /* Fan2 */ +sysfs_sf2_level(3, 2); /* Fan2 */ +sysfs_sf2_level(1, 3); /* Fan3 */ +sysfs_sf2_level(2, 3); /* Fan3 */ +sysfs_sf2_level(3, 3); /* Fan3 */ + +#define device_create_file_sf2_level(client, offset, index) \ +do { \ +device_create_file(&client->dev, \ +&sensor_dev_attr_sf2_level##offset##_fan##index.dev_attr); \ +} while (0) + + +/* This function is called when: + * w83792d_driver is inserted (when this module is loaded), for each + available adapter + * when a new adapter is inserted (and w83792d_driver is still present) */ +static int +w83792d_attach_adapter(struct i2c_adapter *adapter) +{ + if (!(adapter->class & I2C_CLASS_HWMON)) + return 0; + return i2c_detect(adapter, &addr_data, w83792d_detect); +} + + +static int +w83792d_create_subclient(struct i2c_adapter *adapter, + struct i2c_client *new_client, int addr, + struct i2c_client **sub_cli) +{ + int err; + struct i2c_client *sub_client; + + (*sub_cli) = sub_client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL); + if (!(sub_client)) { + return -ENOMEM; + } + memset(sub_client, 0x00, sizeof(struct i2c_client)); + sub_client->addr = 0x48 + addr; + i2c_set_clientdata(sub_client, NULL); + sub_client->adapter = adapter; + sub_client->driver = &w83792d_driver; + sub_client->flags = 0; + strlcpy(sub_client->name, "w83792d subclient", I2C_NAME_SIZE); + if ((err = i2c_attach_client(sub_client))) { + dev_err(&new_client->dev, "subclient registration " + "at address 0x%x failed\n", sub_client->addr); + kfree(sub_client); + return err; + } + return 0; +} + + +static int +w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind, + struct i2c_client *new_client) +{ + int i, id, err; + u8 val; + 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)) { + err = w83792d_create_subclient(adapter, new_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(&new_client->dev, "duplicate addresses 0x%x, " + "use force_subclient\n", data->lm75[0]->addr); + err = -ENODEV; + goto ERROR_SC_1; + } + err = w83792d_create_subclient(adapter, new_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 +w83792d_detect(struct i2c_adapter *adapter, int address, int kind) +{ + int i = 0, val1 = 0, val2; + struct i2c_client *new_client; + struct w83792d_data *data; + 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 w83792d_{read,write}_value. */ + + if (!(data = kmalloc(sizeof(struct w83792d_data), GFP_KERNEL))) { + err = -ENOMEM; + goto ERROR0; + } + memset(data, 0, sizeof(struct w83792d_data)); + + new_client = &data->client; + i2c_set_clientdata(new_client, data); + new_client->addr = address; + init_MUTEX(&data->lock); + new_client->adapter = adapter; + new_client->driver = &w83792d_driver; + new_client->flags = 0; + + /* Now, we do the remaining detection. */ + + /* The w83792d may be stuck in some other bank than bank 0. This may + make reading other information impossible. Specify a force=... or + force_*=... parameter, and the Winbond will be reset to the right + bank. */ + if (kind < 0) { + if (w83792d_read_value(new_client, W83792D_REG_CONFIG) & 0x80) { + dev_warn(&new_client->dev, "Detection failed at step " + "3\n"); + goto ERROR1; + } + val1 = w83792d_read_value(new_client, W83792D_REG_BANK); + val2 = w83792d_read_value(new_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))) { + goto ERROR1; + } + } + /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR + should match */ + if (w83792d_read_value(new_client, + W83792D_REG_I2C_ADDR) != address) { + dev_warn(&new_client->dev, "Detection failed " + "at step 5\n"); + goto ERROR1; + } + } + + /* We have either had a force parameter, or we have already detected the + Winbond. Put it now into bank 0 and Vendor ID High Byte */ + w83792d_write_value(new_client, + W83792D_REG_BANK, + (w83792d_read_value(new_client, + W83792D_REG_BANK) & 0x78) | 0x80); + + /* Determine the chip type. */ + if (kind <= 0) { + /* get vendor ID */ + val2 = w83792d_read_value(new_client, W83792D_REG_CHIPMAN); + if (val2 != 0x5c) { /* the vendor is NOT Winbond */ + goto ERROR1; + } + val1 = w83792d_read_value(new_client, W83792D_REG_WCHIPID); + if (val1 == 0x7a && address >= 0x2c) { + kind = w83792d; + } else { + if (kind == 0) + dev_warn(&new_client->dev, + "w83792d: Ignoring 'force' parameter for" + " unknown chip at adapter %d, address" + " 0x%02x\n", i2c_adapter_id(adapter), + address); + goto ERROR1; + } + } + + if (kind == w83792d) { + client_name = "w83792d"; + } else { + dev_err(&new_client->dev, "w83792d: Internal error: unknown" + " kind (%d)?!?", kind); + goto ERROR1; + } + + /* Fill in the remaining client fields and put into the global list */ + strlcpy(new_client->name, client_name, I2C_NAME_SIZE); + data->type = kind; + + data->valid = 0; + init_MUTEX(&data->update_lock); + + /* Tell the I2C layer a new client has arrived */ + if ((err = i2c_attach_client(new_client))) + goto ERROR1; + + if ((err = w83792d_detect_subclients(adapter, address, + kind, new_client))) + goto ERROR2; + + /* Initialize the chip */ + w83792d_init_client(new_client); + + /* A few vars need to be filled upon startup */ + for (i = 1; i <= 7; i++) { + data->fan_min[i - 1] = w83792d_read_value(new_client, + W83792D_REG_FAN_MIN[i]); + } + + /* Register sysfs hooks */ + device_create_file_in(new_client, 0); + device_create_file_in(new_client, 1); + device_create_file_in(new_client, 2); + device_create_file_in(new_client, 3); + device_create_file_in(new_client, 4); + device_create_file_in(new_client, 5); + device_create_file_in(new_client, 6); + device_create_file_in(new_client, 7); + device_create_file_in(new_client, 8); + + device_create_file_fan(new_client, 1); + device_create_file_fan(new_client, 2); + device_create_file_fan(new_client, 3); + device_create_file_fan(new_client, 4); + device_create_file_fan(new_client, 5); + device_create_file_fan(new_client, 6); + device_create_file_fan(new_client, 7); + + device_create_file_temp1(new_client); /* Temp1 */ + device_create_file_temp_add(new_client, 2); /* Temp2 */ + device_create_file_temp_add(new_client, 3); /* Temp3 */ + + device_create_file_alarms(new_client); + + device_create_file_pwm(new_client, 1); + device_create_file_pwm(new_client, 2); + device_create_file_pwm(new_client, 3); + + device_create_file_pwmenable(new_client, 1); + device_create_file_pwmenable(new_client, 2); + device_create_file_pwmenable(new_client, 3); + + device_create_file_pwm_mode(new_client, 1); + device_create_file_pwm_mode(new_client, 2); + device_create_file_pwm_mode(new_client, 3); + + device_create_file_chassis(new_client); + device_create_file_chassis_clear(new_client); + + device_create_file_thermal_cruise(new_client, 1); + device_create_file_thermal_cruise(new_client, 2); + device_create_file_thermal_cruise(new_client, 3); + + device_create_file_tolerance(new_client, 1); + device_create_file_tolerance(new_client, 2); + device_create_file_tolerance(new_client, 3); + + device_create_file_sf2_point(new_client, 1, 1); /* Fan1 */ + device_create_file_sf2_point(new_client, 2, 1); /* Fan1 */ + device_create_file_sf2_point(new_client, 3, 1); /* Fan1 */ + device_create_file_sf2_point(new_client, 4, 1); /* Fan1 */ + device_create_file_sf2_point(new_client, 1, 2); /* Fan2 */ + device_create_file_sf2_point(new_client, 2, 2); /* Fan2 */ + device_create_file_sf2_point(new_client, 3, 2); /* Fan2 */ + device_create_file_sf2_point(new_client, 4, 2); /* Fan2 */ + device_create_file_sf2_point(new_client, 1, 3); /* Fan3 */ + device_create_file_sf2_point(new_client, 2, 3); /* Fan3 */ + device_create_file_sf2_point(new_client, 3, 3); /* Fan3 */ + device_create_file_sf2_point(new_client, 4, 3); /* Fan3 */ + + device_create_file_sf2_level(new_client, 1, 1); /* Fan1 */ + device_create_file_sf2_level(new_client, 2, 1); /* Fan1 */ + device_create_file_sf2_level(new_client, 3, 1); /* Fan1 */ + device_create_file_sf2_level(new_client, 1, 2); /* Fan2 */ + device_create_file_sf2_level(new_client, 2, 2); /* Fan2 */ + device_create_file_sf2_level(new_client, 3, 2); /* Fan2 */ + device_create_file_sf2_level(new_client, 1, 3); /* Fan3 */ + device_create_file_sf2_level(new_client, 2, 3); /* Fan3 */ + device_create_file_sf2_level(new_client, 3, 3); /* Fan3 */ + + return 0; + +ERROR2: + i2c_detach_client(new_client); +ERROR1: + kfree(data); +ERROR0: + return err; +} + +static int +w83792d_detach_client(struct i2c_client *client) +{ + int err; + + if ((err = i2c_detach_client(client))) { + dev_err(&client->dev, + "Client deregistration failed, client not detached.\n"); + return err; + } + + if (i2c_get_clientdata(client)==NULL) { + /* subclients */ + kfree(client); + } else { + /* main client */ + kfree(i2c_get_clientdata(client)); + } + + return 0; +} + +/* The SMBus locks itself, usually, but nothing may access the Winbond between + bank switches. ISA access must always be locked explicitly! + We ignore the W83792D BUSY flag at this moment - it could lead to deadlocks, + would slow down the W83792D access and should not be necessary. + There are some ugly typecasts here, but the good news is - they should + nowhere else be necessary! */ +static int +w83792d_read_value(struct i2c_client *client, u8 reg) +{ + int res=0; + res = i2c_smbus_read_byte_data(client, reg); + + return res; +} + +static int +w83792d_write_value(struct i2c_client *client, u8 reg, u8 value) +{ + i2c_smbus_write_byte_data(client, reg, value); + return 0; +} + +/* Called when we have found a new W83792D. It should set limits, etc. */ +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], pwm_array_tmp[7], reg_tmp; + + down(&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[0] = w83792d_read_value(client, + W83792D_REG_LOW_BITS1); + data->low_bits[1] = w83792d_read_value(client, + W83792D_REG_LOW_BITS2); + 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 */ + pwm_array_tmp[i] = w83792d_read_value(client, + W83792D_REG_PWM[i]); + data->pwm[i] = pwm_array_tmp[i] & 0x0f; + data->pwm_mode[i] = (pwm_array_tmp[i] >> 7) & 0x01; + } + + 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; + data->chassis_clear = (w83792d_read_value(client, + W83792D_REG_CHASSIS_CLR) >> 7) & 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; + } + + up(&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[0]); + dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits[1]); + 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, "pwm_mode[%d] is: 0x%x\n", i, data->pwm_mode[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 + +static int __init +sensors_w83792d_init(void) +{ + return i2c_add_driver(&w83792d_driver); +} + +static void __exit +sensors_w83792d_exit(void) +{ + i2c_del_driver(&w83792d_driver); +} + +MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>"); +MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6"); +MODULE_LICENSE("GPL"); + +module_init(sensors_w83792d_init); +module_exit(sensors_w83792d_exit); + |