/* 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/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/err.h> /* Addresses to scan */ static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; /* Insmod parameters */ I2C_CLIENT_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 class_device *class_dev; 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_probe(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 */ data->class_dev = hwmon_device_register(&new_client->dev); if (IS_ERR(data->class_dev)) { err = PTR_ERR(data->class_dev); goto ERROR3; } 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; 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(new_client); ERROR1: kfree(data); ERROR0: return err; } static int w83792d_detach_client(struct i2c_client *client) { struct w83792d_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; } /* 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);