diff options
| -rw-r--r-- | Documentation/hwmon/adt7462 | 67 | ||||
| -rw-r--r-- | drivers/hwmon/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/hwmon/Makefile | 1 | ||||
| -rw-r--r-- | drivers/hwmon/adt7462.c | 2002 |
4 files changed, 2080 insertions, 0 deletions
diff --git a/Documentation/hwmon/adt7462 b/Documentation/hwmon/adt7462 new file mode 100644 index 00000000000..ec660b32827 --- /dev/null +++ b/Documentation/hwmon/adt7462 @@ -0,0 +1,67 @@ +Kernel driver adt7462 +====================== + +Supported chips: + * Analog Devices ADT7462 + Prefix: 'adt7462' + Addresses scanned: I2C 0x58, 0x5C + Datasheet: Publicly available at the Analog Devices website + +Author: Darrick J. Wong + +Description +----------- + +This driver implements support for the Analog Devices ADT7462 chip family. + +This chip is a bit of a beast. It has 8 counters for measuring fan speed. It +can also measure 13 voltages or 4 temperatures, or various combinations of the +two. See the chip documentation for more details about the exact set of +configurations. This driver does not allow one to configure the chip; that is +left to the system designer. + +A sophisticated control system for the PWM outputs is designed into the ADT7462 +that allows fan speed to be adjusted automatically based on any of the three +temperature sensors. Each PWM output is individually adjustable and +programmable. Once configured, the ADT7462 will adjust the PWM outputs in +response to the measured temperatures without further host intervention. This +feature can also be disabled for manual control of the PWM's. + +Each of the measured inputs (voltage, temperature, fan speed) has +corresponding high/low limit values. The ADT7462 will signal an ALARM if +any measured value exceeds either limit. + +The ADT7462 samples all inputs continuously. The driver will not read +the registers more often than once every other second. Further, +configuration data is only read once per minute. + +Special Features +---------------- + +The ADT7462 have a 10-bit ADC and can therefore measure temperatures +with 0.25 degC resolution. + +The Analog Devices datasheet is very detailed and describes a procedure for +determining an optimal configuration for the automatic PWM control. + +The driver will report sensor labels when it is able to determine that +information from the configuration registers. + +Configuration Notes +------------------- + +Besides standard interfaces driver adds the following: + +* PWM Control + +* pwm#_auto_point1_pwm and temp#_auto_point1_temp and +* pwm#_auto_point2_pwm and temp#_auto_point2_temp - + +point1: Set the pwm speed at a lower temperature bound. +point2: Set the pwm speed at a higher temperature bound. + +The ADT7462 will scale the pwm between the lower and higher pwm speed when +the temperature is between the two temperature boundaries. PWM values range +from 0 (off) to 255 (full speed). Fan speed will be set to maximum when the +temperature sensor associated with the PWM control exceeds temp#_max. + diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 1c44f5c47aa..c709e821f04 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -159,6 +159,16 @@ config SENSORS_ADM9240 This driver can also be built as a module. If so, the module will be called adm9240. +config SENSORS_ADT7462 + tristate "Analog Devices ADT7462" + depends on I2C && EXPERIMENTAL + help + If you say yes here you get support for the Analog Devices + ADT7462 temperature monitoring chips. + + This driver can also be built as a module. If so, the module + will be called adt7462. + config SENSORS_ADT7470 tristate "Analog Devices ADT7470" depends on I2C && EXPERIMENTAL diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index e0d90a68bea..58fc5be5355 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -25,6 +25,7 @@ obj-$(CONFIG_SENSORS_ADM1029) += adm1029.o obj-$(CONFIG_SENSORS_ADM1031) += adm1031.o obj-$(CONFIG_SENSORS_ADM9240) += adm9240.o obj-$(CONFIG_SENSORS_ADS7828) += ads7828.o +obj-$(CONFIG_SENSORS_ADT7462) += adt7462.o obj-$(CONFIG_SENSORS_ADT7470) += adt7470.o obj-$(CONFIG_SENSORS_ADT7473) += adt7473.o obj-$(CONFIG_SENSORS_APPLESMC) += applesmc.o diff --git a/drivers/hwmon/adt7462.c b/drivers/hwmon/adt7462.c new file mode 100644 index 00000000000..66107b4dc12 --- /dev/null +++ b/drivers/hwmon/adt7462.c @@ -0,0 +1,2002 @@ +/* + * A hwmon driver for the Analog Devices ADT7462 + * Copyright (C) 2008 IBM + * + * Author: Darrick J. Wong <djwong@us.ibm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/module.h> +#include <linux/jiffies.h> +#include <linux/i2c.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/err.h> +#include <linux/mutex.h> +#include <linux/delay.h> +#include <linux/log2.h> + +/* Addresses to scan */ +static const unsigned short normal_i2c[] = { 0x58, 0x5C, I2C_CLIENT_END }; + +/* Insmod parameters */ +I2C_CLIENT_INSMOD_1(adt7462); + +/* ADT7462 registers */ +#define ADT7462_REG_DEVICE 0x3D +#define ADT7462_REG_VENDOR 0x3E +#define ADT7462_REG_REVISION 0x3F + +#define ADT7462_REG_MIN_TEMP_BASE_ADDR 0x44 +#define ADT7462_REG_MIN_TEMP_MAX_ADDR 0x47 +#define ADT7462_REG_MAX_TEMP_BASE_ADDR 0x48 +#define ADT7462_REG_MAX_TEMP_MAX_ADDR 0x4B +#define ADT7462_REG_TEMP_BASE_ADDR 0x88 +#define ADT7462_REG_TEMP_MAX_ADDR 0x8F + +#define ADT7462_REG_FAN_BASE_ADDR 0x98 +#define ADT7462_REG_FAN_MAX_ADDR 0x9F +#define ADT7462_REG_FAN2_BASE_ADDR 0xA2 +#define ADT7462_REG_FAN2_MAX_ADDR 0xA9 +#define ADT7462_REG_FAN_ENABLE 0x07 +#define ADT7462_REG_FAN_MIN_BASE_ADDR 0x78 +#define ADT7462_REG_FAN_MIN_MAX_ADDR 0x7F + +#define ADT7462_REG_CFG2 0x02 +#define ADT7462_FSPD_MASK 0x20 + +#define ADT7462_REG_PWM_BASE_ADDR 0xAA +#define ADT7462_REG_PWM_MAX_ADDR 0xAD +#define ADT7462_REG_PWM_MIN_BASE_ADDR 0x28 +#define ADT7462_REG_PWM_MIN_MAX_ADDR 0x2B +#define ADT7462_REG_PWM_MAX 0x2C +#define ADT7462_REG_PWM_TEMP_MIN_BASE_ADDR 0x5C +#define ADT7462_REG_PWM_TEMP_MIN_MAX_ADDR 0x5F +#define ADT7462_REG_PWM_TEMP_RANGE_BASE_ADDR 0x60 +#define ADT7462_REG_PWM_TEMP_RANGE_MAX_ADDR 0x63 +#define ADT7462_PWM_HYST_MASK 0x0F +#define ADT7462_PWM_RANGE_MASK 0xF0 +#define ADT7462_PWM_RANGE_SHIFT 4 +#define ADT7462_REG_PWM_CFG_BASE_ADDR 0x21 +#define ADT7462_REG_PWM_CFG_MAX_ADDR 0x24 +#define ADT7462_PWM_CHANNEL_MASK 0xE0 +#define ADT7462_PWM_CHANNEL_SHIFT 5 + +#define ADT7462_REG_PIN_CFG_BASE_ADDR 0x10 +#define ADT7462_REG_PIN_CFG_MAX_ADDR 0x13 +#define ADT7462_PIN7_INPUT 0x01 /* cfg0 */ +#define ADT7462_DIODE3_INPUT 0x20 +#define ADT7462_DIODE1_INPUT 0x40 +#define ADT7462_VID_INPUT 0x80 +#define ADT7462_PIN22_INPUT 0x04 /* cfg1 */ +#define ADT7462_PIN21_INPUT 0x08 +#define ADT7462_PIN19_INPUT 0x10 +#define ADT7462_PIN15_INPUT 0x20 +#define ADT7462_PIN13_INPUT 0x40 +#define ADT7462_PIN8_INPUT 0x80 +#define ADT7462_PIN23_MASK 0x03 +#define ADT7462_PIN23_SHIFT 0 +#define ADT7462_PIN26_MASK 0x0C /* cfg2 */ +#define ADT7462_PIN26_SHIFT 2 +#define ADT7462_PIN25_MASK 0x30 +#define ADT7462_PIN25_SHIFT 4 +#define ADT7462_PIN24_MASK 0xC0 +#define ADT7462_PIN24_SHIFT 6 +#define ADT7462_PIN26_VOLT_INPUT 0x08 +#define ADT7462_PIN25_VOLT_INPUT 0x20 +#define ADT7462_PIN28_SHIFT 6 /* cfg3 */ +#define ADT7462_PIN28_VOLT 0x5 + +#define ADT7462_REG_ALARM1 0xB8 +#define ADT7462_LT_ALARM 0x02 +#define ADT7462_R1T_ALARM 0x04 +#define ADT7462_R2T_ALARM 0x08 +#define ADT7462_R3T_ALARM 0x10 +#define ADT7462_REG_ALARM2 0xBB +#define ADT7462_V0_ALARM 0x01 +#define ADT7462_V1_ALARM 0x02 +#define ADT7462_V2_ALARM 0x04 +#define ADT7462_V3_ALARM 0x08 +#define ADT7462_V4_ALARM 0x10 +#define ADT7462_V5_ALARM 0x20 +#define ADT7462_V6_ALARM 0x40 +#define ADT7462_V7_ALARM 0x80 +#define ADT7462_REG_ALARM3 0xBC +#define ADT7462_V8_ALARM 0x08 +#define ADT7462_V9_ALARM 0x10 +#define ADT7462_V10_ALARM 0x20 +#define ADT7462_V11_ALARM 0x40 +#define ADT7462_V12_ALARM 0x80 +#define ADT7462_REG_ALARM4 0xBD +#define ADT7462_F0_ALARM 0x01 +#define ADT7462_F1_ALARM 0x02 +#define ADT7462_F2_ALARM 0x04 +#define ADT7462_F3_ALARM 0x08 +#define ADT7462_F4_ALARM 0x10 +#define ADT7462_F5_ALARM 0x20 +#define ADT7462_F6_ALARM 0x40 +#define ADT7462_F7_ALARM 0x80 +#define ADT7462_ALARM1 0x0000 +#define ADT7462_ALARM2 0x0100 +#define ADT7462_ALARM3 0x0200 +#define ADT7462_ALARM4 0x0300 +#define ADT7462_ALARM_REG_SHIFT 8 +#define ADT7462_ALARM_FLAG_MASK 0x0F + +#define ADT7462_TEMP_COUNT 4 +#define ADT7462_TEMP_REG(x) (ADT7462_REG_TEMP_BASE_ADDR + (x * 2)) +#define ADT7462_TEMP_MIN_REG(x) (ADT7462_REG_MIN_TEMP_BASE_ADDR + (x)) +#define ADT7462_TEMP_MAX_REG(x) (ADT7462_REG_MAX_TEMP_BASE_ADDR + (x)) +#define TEMP_FRAC_OFFSET 6 + +#define ADT7462_FAN_COUNT 8 +#define ADT7462_REG_FAN_MIN(x) (ADT7462_REG_FAN_MIN_BASE_ADDR + (x)) + +#define ADT7462_PWM_COUNT 4 +#define ADT7462_REG_PWM(x) (ADT7462_REG_PWM_BASE_ADDR + (x)) +#define ADT7462_REG_PWM_MIN(x) (ADT7462_REG_PWM_MIN_BASE_ADDR + (x)) +#define ADT7462_REG_PWM_TMIN(x) \ + (ADT7462_REG_PWM_TEMP_MIN_BASE_ADDR + (x)) +#define ADT7462_REG_PWM_TRANGE(x) \ + (ADT7462_REG_PWM_TEMP_RANGE_BASE_ADDR + (x)) + +#define ADT7462_PIN_CFG_REG_COUNT 4 +#define ADT7462_REG_PIN_CFG(x) (ADT7462_REG_PIN_CFG_BASE_ADDR + (x)) +#define ADT7462_REG_PWM_CFG(x) (ADT7462_REG_PWM_CFG_BASE_ADDR + (x)) + +#define ADT7462_ALARM_REG_COUNT 4 + +/* + * The chip can measure 13 different voltage sources: + * + * 1. +12V1 (pin 7) + * 2. Vccp1/+2.5V/+1.8V/+1.5V (pin 23) + * 3. +12V3 (pin 22) + * 4. +5V (pin 21) + * 5. +1.25V/+0.9V (pin 19) + * 6. +2.5V/+1.8V (pin 15) + * 7. +3.3v (pin 13) + * 8. +12V2 (pin 8) + * 9. Vbatt/FSB_Vtt (pin 26) + * A. +3.3V/+1.2V1 (pin 25) + * B. Vccp2/+2.5V/+1.8V/+1.5V (pin 24) + * C. +1.5V ICH (only if BOTH pin 28/29 are set to +1.5V) + * D. +1.5V 3GPIO (only if BOTH pin 28/29 are set to +1.5V) + * + * Each of these 13 has a factor to convert raw to voltage. Even better, + * the pins can be connected to other sensors (tach/gpio/hot/etc), which + * makes the bookkeeping tricky. + * + * Some, but not all, of these voltages have low/high limits. + */ +#define ADT7462_VOLT_COUNT 12 + +#define ADT7462_VENDOR 0x41 +#define ADT7462_DEVICE 0x62 +/* datasheet only mentions a revision 4 */ +#define ADT7462_REVISION 0x04 + +/* How often do we reread sensors values? (In jiffies) */ +#define SENSOR_REFRESH_INTERVAL (2 * HZ) + +/* How often do we reread sensor limit values? (In jiffies) */ +#define LIMIT_REFRESH_INTERVAL (60 * HZ) + +/* datasheet says to divide this number by the fan reading to get fan rpm */ +#define FAN_PERIOD_TO_RPM(x) ((90000 * 60) / (x)) +#define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM +#define FAN_PERIOD_INVALID 65535 +#define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID) + +#define MASK_AND_SHIFT(value, prefix) \ + (((value) & prefix##_MASK) >> prefix##_SHIFT) + +#define ROUND_DIV(x, divisor) (((x) + ((divisor) / 2)) / (divisor)) + +struct adt7462_data { + struct device *hwmon_dev; + struct attribute_group attrs; + struct mutex lock; + char sensors_valid; + char limits_valid; + unsigned long sensors_last_updated; /* In jiffies */ + unsigned long limits_last_updated; /* In jiffies */ + + u8 temp[ADT7462_TEMP_COUNT]; + /* bits 6-7 are quarter pieces of temp */ + u8 temp_frac[ADT7462_TEMP_COUNT]; + u8 temp_min[ADT7462_TEMP_COUNT]; + u8 temp_max[ADT7462_TEMP_COUNT]; + u16 fan[ADT7462_FAN_COUNT]; + u8 fan_enabled; + u8 fan_min[ADT7462_FAN_COUNT]; + u8 cfg2; + u8 pwm[ADT7462_PWM_COUNT]; + u8 pin_cfg[ADT7462_PIN_CFG_REG_COUNT]; + u8 voltages[ADT7462_VOLT_COUNT]; + u8 volt_max[ADT7462_VOLT_COUNT]; + u8 volt_min[ADT7462_VOLT_COUNT]; + u8 pwm_min[ADT7462_PWM_COUNT]; + u8 pwm_tmin[ADT7462_PWM_COUNT]; + u8 pwm_trange[ADT7462_PWM_COUNT]; + u8 pwm_max; /* only one per chip */ + u8 pwm_cfg[ADT7462_PWM_COUNT]; + u8 alarms[ADT7462_ALARM_REG_COUNT]; +}; + +static int adt7462_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int adt7462_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); +static int adt7462_remove(struct i2c_client *client); + +static const struct i2c_device_id adt7462_id[] = { + { "adt7462", adt7462 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, adt7462_id); + +static struct i2c_driver adt7462_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "adt7462", + }, + .probe = adt7462_probe, + .remove = adt7462_remove, + .id_table = adt7462_id, + .detect = adt7462_detect, + .address_data = &addr_data, +}; + +/* + * 16-bit registers on the ADT7462 are low-byte first. The data sheet says + * that the low byte must be read before the high byte. + */ +static inline int adt7462_read_word_data(struct i2c_client *client, u8 reg) +{ + u16 foo; + foo = i2c_smbus_read_byte_data(client, reg); + foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8); + return foo; +} + +/* For some reason these registers are not contiguous. */ +static int ADT7462_REG_FAN(int fan) +{ + if (fan < 4) + return ADT7462_REG_FAN_BASE_ADDR + (2 * fan); + return ADT7462_REG_FAN2_BASE_ADDR + (2 * (fan - 4)); +} + +/* Voltage registers are scattered everywhere */ +static int ADT7462_REG_VOLT_MAX(struct adt7462_data *data, int which) +{ + switch (which) { + case 0: + if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT)) + return 0x7C; + break; + case 1: + return 0x69; + case 2: + if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT)) + return 0x7F; + break; + case 3: + if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT)) + return 0x7E; + break; + case 4: + if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT)) + return 0x4B; + break; + case 5: + if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT)) + return 0x49; + break; + case 6: + if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT)) + return 0x68; + break; + case 7: + if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT)) + return 0x7D; + break; + case 8: + if (!(data->pin_cfg[2] & ADT7462_PIN26_VOLT_INPUT)) + return 0x6C; + break; + case 9: + if (!(data->pin_cfg[2] & ADT7462_PIN25_VOLT_INPUT)) + return 0x6B; + break; + case 10: + return 0x6A; + case 11: + if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == + ADT7462_PIN28_VOLT && + !(data->pin_cfg[0] & ADT7462_VID_INPUT)) + return 0x50; + break; + case 12: + if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == + ADT7462_PIN28_VOLT && + !(data->pin_cfg[0] & ADT7462_VID_INPUT)) + return 0x4C; + break; + } + return -ENODEV; +} + +static int ADT7462_REG_VOLT_MIN(struct adt7462_data *data, int which) +{ + switch (which) { + case 0: + if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT)) + return 0x6D; + break; + case 1: + return 0x72; + case 2: + if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT)) + return 0x6F; + break; + case 3: + if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT)) + return 0x71; + break; + case 4: + if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT)) + return 0x47; + break; + case 5: + if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT)) + return 0x45; + break; + case 6: + if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT)) + return 0x70; + break; + case 7: + if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT)) + return 0x6E; + break; + case 8: + if (!(data->pin_cfg[2] & ADT7462_PIN26_VOLT_INPUT)) + return 0x75; + break; + case 9: + if (!(data->pin_cfg[2] & ADT7462_PIN25_VOLT_INPUT)) + return 0x74; + break; + case 10: + return 0x73; + case 11: + if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == + ADT7462_PIN28_VOLT && + !(data->pin_cfg[0] & ADT7462_VID_INPUT)) + return 0x76; + break; + case 12: + if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == + ADT7462_PIN28_VOLT && + !(data->pin_cfg[0] & ADT7462_VID_INPUT)) + return 0x77; + break; + } + return -ENODEV; +} + +static int ADT7462_REG_VOLT(struct adt7462_data *data, int which) +{ + switch (which) { + case 0: + if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT)) + return 0xA3; + break; + case 1: + return 0x90; + case 2: + if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT)) + return 0xA9; + break; + case 3: + if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT)) + return 0xA7; + break; + case 4: + if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT)) + return 0x8F; + break; + case 5: + if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT)) + return 0x8B; + break; + case 6: + if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT)) + return 0x96; + break; + case 7: + if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT)) + return 0xA5; + break; + case 8: + if (!(data->pin_cfg[2] & ADT7462_PIN26_VOLT_INPUT)) + return 0x93; + break; + case 9: + if (!(data->pin_cfg[2] & ADT7462_PIN25_VOLT_INPUT)) + return 0x92; + break; + case 10: + return 0x91; + case 11: + if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == + ADT7462_PIN28_VOLT && + !(data->pin_cfg[0] & ADT7462_VID_INPUT)) + return 0x94; + break; + case 12: + if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == + ADT7462_PIN28_VOLT && + !(data->pin_cfg[0] & ADT7462_VID_INPUT)) + return 0x95; + break; + } + return -ENODEV; +} + +/* Provide labels for sysfs */ +static const char *voltage_label(struct adt7462_data *data, int which) +{ + switch (which) { + case 0: + if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT)) + return "+12V1"; + break; + case 1: + switch (MASK_AND_SHIFT(data->pin_cfg[1], ADT7462_PIN23)) { + case 0: + return "Vccp1"; + case 1: + return "+2.5V"; + case 2: + return "+1.8V"; + case 3: + return "+1.5V"; + } + case 2: + if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT)) + return "+12V3"; + break; + case 3: + if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT)) + return "+5V"; + break; + case 4: + if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT)) { + if (data->pin_cfg[1] & ADT7462_PIN19_INPUT) + return "+0.9V"; + return "+1.25V"; + } + break; + case 5: + if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT)) { + if (data->pin_cfg[1] & ADT7462_PIN19_INPUT) + return "+1.8V"; + return "+2.5V"; + } + break; + case 6: + if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT)) + return "+3.3V"; + break; + case 7: + if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT)) + return "+12V2"; + break; + case 8: + switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN26)) { + case 0: + return "Vbatt"; + case 1: + return "FSB_Vtt"; + } + break; + case 9: + switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN25)) { + case 0: + return "+3.3V"; + case 1: + return "+1.2V1"; + } + break; + case 10: + switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN24)) { + case 0: + return "Vccp2"; + case 1: + return "+2.5V"; + case 2: + return "+1.8V"; + case 3: + return "+1.5"; + } + case 11: + if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == + ADT7462_PIN28_VOLT && + !(data->pin_cfg[0] & ADT7462_VID_INPUT)) + return "+1.5V ICH"; + break; + case 12: + if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == + ADT7462_PIN28_VOLT && + !(data->pin_cfg[0] & ADT7462_VID_INPUT)) + return "+1.5V 3GPIO"; + break; + } + return "N/A"; +} + +/* Multipliers are actually in uV, not mV. */ +static int voltage_multiplier(struct adt7462_data *data, int which) +{ + switch (which) { + case 0: + if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT)) + return 62500; + break; + case 1: + switch (MASK_AND_SHIFT(data->pin_cfg[1], ADT7462_PIN23)) { + case 0: + if (data->pin_cfg[0] & ADT7462_VID_INPUT) + return 12500; + return 6250; + case 1: + return 13000; + case 2: + return 9400; + case 3: + return 7800; + } + case 2: + if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT)) + return 62500; + break; + case 3: + if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT)) + return 26000; + break; + case 4: + if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT)) { + if (data->pin_cfg[1] & ADT7462_PIN19_INPUT) + return 4690; + return 6500; + } + break; + case 5: + if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT)) { + if (data->pin_cfg[1] & ADT7462_PIN15_INPUT) + return 9400; + return 13000; + } + break; + case 6: + if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT)) + return 17200; + break; + case 7: + if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT)) + return 62500; + break; + case 8: + switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN26)) { + case 0: + return 15600; + case 1: + return 6250; + } + break; + case 9: + switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN25)) { + case 0: + return 17200; + case 1: + return 6250; + } + break; + case 10: + switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN24)) { + case 0: + return 6250; + case 1: + return 13000; + case 2: + return 9400; + case 3: + return 7800; + } + case 11: + case 12: + if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT == + ADT7462_PIN28_VOLT && + !(data->pin_cfg[0] & ADT7462_VID_INPUT)) + return 7800; + } + return 0; +} + +static int temp_enabled(struct adt7462_data *data, int which) +{ + switch (which) { + case 0: + case 2: + return 1; + case 1: + if (data->pin_cfg[0] & ADT7462_DIODE1_INPUT) + return 1; + break; + case 3: + if (data->pin_cfg[0] & ADT7462_DIODE3_INPUT) + return 1; + break; + } + return 0; +} + +static const char *temp_label(struct adt7462_data *data, int which) +{ + switch (which) { + case 0: + return "local"; + case 1: + if (data->pin_cfg[0] & ADT7462_DIODE1_INPUT) + return "remote1"; + break; + case 2: + return "remote2"; + case 3: + if (data->pin_cfg[0] & ADT7462_DIODE3_INPUT) + return "remote3"; + break; + } + return "N/A"; +} + +/* Map Trange register values to mC */ +#define NUM_TRANGE_VALUES 16 +static const int trange_values[NUM_TRANGE_VALUES] = { + 2000, + 2500, + 3300, + 4000, + 5000, + 6700, + 8000, + 10000, + 13300, + 16000, + 20000, + 26700, + 32000, + 40000, + 53300, + 80000 +}; + +static int find_trange_value(int trange) +{ + int i; + + for (i = 0; i < NUM_TRANGE_VALUES; i++) + if (trange_values[i] == trange) + return i; + + return -ENODEV; +} + +static struct adt7462_data *adt7462_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + unsigned long local_jiffies = jiffies; + int i; + + mutex_lock(&data->lock); + if (time_before(local_jiffies, data->sensors_last_updated + + SENSOR_REFRESH_INTERVAL) + && data->sensors_valid) + goto no_sensor_update; + + for (i = 0; i < ADT7462_TEMP_COUNT; i++) { + /* + * Reading the fractional register locks the integral + * register until both have been read. + */ + data->temp_frac[i] = i2c_smbus_read_byte_data(client, + ADT7462_TEMP_REG(i)); + data->temp[i] = i2c_smbus_read_byte_data(client, + ADT7462_TEMP_REG(i) + 1); + } + + for (i = 0; i < ADT7462_FAN_COUNT; i++) + data->fan[i] = adt7462_read_word_data(client, + ADT7462_REG_FAN(i)); + + data->fan_enabled = i2c_smbus_read_byte_data(client, + ADT7462_REG_FAN_ENABLE); + + for (i = 0; i < ADT7462_PWM_COUNT; i++) + data->pwm[i] = i2c_smbus_read_byte_data(client, + ADT7462_REG_PWM(i)); + + for (i = 0; i < ADT7462_PIN_CFG_REG_COUNT; i++) + data->pin_cfg[i] = i2c_smbus_read_byte_data(client, + ADT7462_REG_PIN_CFG(i)); + + for (i = 0; i < ADT7462_VOLT_COUNT; i++) { + int reg = ADT7462_REG_VOLT(data, i); + if (!reg) + data->voltages[i] = 0; + else + data->voltages[i] = i2c_smbus_read_byte_data(client, + reg); + } + + data->alarms[0] = i2c_smbus_read_byte_data(client, ADT7462_REG_ALARM1); + data->alarms[1] = i2c_smbus_read_byte_data(client, ADT7462_REG_ALARM2); + data->alarms[2] = i2c_smbus_read_byte_data(client, ADT7462_REG_ALARM3); + data->alarms[3] = i2c_smbus_read_byte_data(client, ADT7462_REG_ALARM4); + + data->sensors_last_updated = local_jiffies; + data->sensors_valid = 1; + +no_sensor_update: + if (time_before(local_jiffies, data->limits_last_updated + + LIMIT_REFRESH_INTERVAL) + && data->limits_valid) + goto out; + + for (i = 0; i < ADT7462_TEMP_COUNT; i++) { + data->temp_min[i] = i2c_smbus_read_byte_data(client, + ADT7462_TEMP_MIN_REG(i)); + data->temp_max[i] = i2c_smbus_read_byte_data(client, + ADT7462_TEMP_MAX_REG(i)); + } + + for (i = 0; i < ADT7462_FAN_COUNT; i++) + data->fan_min[i] = i2c_smbus_read_byte_data(client, + ADT7462_REG_FAN_MIN(i)); + + for (i = 0; i < ADT7462_VOLT_COUNT; i++) { + int reg = ADT7462_REG_VOLT_MAX(data, i); + data->volt_max[i] = + (reg ? i2c_smbus_read_byte_data(client, reg) : 0); + + reg = ADT7462_REG_VOLT_MIN(data, i); + data->volt_min[i] = + (reg ? i2c_smbus_read_byte_data(client, reg) : 0); + } + + for (i = 0; i < ADT7462_PWM_COUNT; i++) { + data->pwm_min[i] = i2c_smbus_read_byte_data(client, + ADT7462_REG_PWM_MIN(i)); + data->pwm_tmin[i] = i2c_smbus_read_byte_data(client, + ADT7462_REG_PWM_TMIN(i)); + data->pwm_trange[i] = i2c_smbus_read_byte_data(client, + ADT7462_REG_PWM_TRANGE(i)); + data->pwm_cfg[i] = i2c_smbus_read_byte_data(client, + ADT7462_REG_PWM_CFG(i)); + } + + data->pwm_max = i2c_smbus_read_byte_data(client, ADT7462_REG_PWM_MAX); + + data->cfg2 = i2c_smbus_read_byte_data(client, ADT7462_REG_CFG2); + + data->limits_last_updated = local_jiffies; + data->limits_valid = 1; + +out: + mutex_unlock(&data->lock); + return data; +} + +static ssize_t show_temp_min(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + + if (!temp_enabled(data, attr->index)) + return sprintf(buf, "0\n"); + + return sprintf(buf, "%d\n", 1000 * (data->temp_min[attr->index] - 64)); +} + +static ssize_t set_temp_min(struct device *dev, + struct device_attribute *devattr, + const char *buf, + size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + long temp; + + if (strict_strtol(buf, 10, &temp) || !temp_enabled(data, attr->index)) + return -EINVAL; + + temp = ROUND_DIV(temp, 1000) + 64; + temp = SENSORS_LIMIT(temp, 0, 255); + + mutex_lock(&data->lock); + data->temp_min[attr->index] = temp; + i2c_smbus_write_byte_data(client, ADT7462_TEMP_MIN_REG(attr->index), + temp); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t show_temp_max(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + + if (!temp_enabled(data, attr->index)) + return sprintf(buf, "0\n"); + + return sprintf(buf, "%d\n", 1000 * (data->temp_max[attr->index] - 64)); +} + +static ssize_t set_temp_max(struct device *dev, + struct device_attribute *devattr, + const char *buf, + size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + long temp; + + if (strict_strtol(buf, 10, &temp) || !temp_enabled(data, attr->index)) + return -EINVAL; + + temp = ROUND_DIV(temp, 1000) + 64; + temp = SENSORS_LIMIT(temp, 0, 255); + + mutex_lock(&data->lock); + data->temp_max[attr->index] = temp; + i2c_smbus_write_byte_data(client, ADT7462_TEMP_MAX_REG(attr->index), + temp); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + u8 frac = data->temp_frac[attr->index] >> TEMP_FRAC_OFFSET; + + if (!temp_enabled(data, attr->index)) + return sprintf(buf, "0\n"); + + return sprintf(buf, "%d\n", 1000 * (data->temp[attr->index] - 64) + + 250 * frac); +} + +static ssize_t show_temp_label(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + + return sprintf(buf, "%s\n", temp_label(data, attr->index)); +} + +static ssize_t show_volt_max(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + int x = voltage_multiplier(data, attr->index); + + x *= data->volt_max[attr->index]; + x /= 1000; /* convert from uV to mV */ + + return sprintf(buf, "%d\n", x); +} + +static ssize_t set_volt_max(struct device *dev, + struct device_attribute *devattr, + const char *buf, + size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + int x = voltage_multiplier(data, attr->index); + long temp; + + if (strict_strtol(buf, 10, &temp) || !x) + return -EINVAL; + + temp *= 1000; /* convert mV to uV */ + temp = ROUND_DIV(temp, x); + temp = SENSORS_LIMIT(temp, 0, 255); + + mutex_lock(&data->lock); + data->volt_max[attr->index] = temp; + i2c_smbus_write_byte_data(client, + ADT7462_REG_VOLT_MAX(data, attr->index), + temp); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t show_volt_min(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + int x = voltage_multiplier(data, attr->index); + + x *= data->volt_min[attr->index]; + x /= 1000; /* convert from uV to mV */ + + return sprintf(buf, "%d\n", x); +} + +static ssize_t set_volt_min(struct device *dev, + struct device_attribute *devattr, + const char *buf, + size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + int x = voltage_multiplier(data, attr->index); + long temp; + + if (strict_strtol(buf, 10, &temp) || !x) + return -EINVAL; + + temp *= 1000; /* convert mV to uV */ + temp = ROUND_DIV(temp, x); + temp = SENSORS_LIMIT(temp, 0, 255); + + mutex_lock(&data->lock); + data->volt_min[attr->index] = temp; + i2c_smbus_write_byte_data(client, + ADT7462_REG_VOLT_MIN(data, attr->index), + temp); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t show_voltage(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + int x = voltage_multiplier(data, attr->index); + + x *= data->voltages[attr->index]; + x /= 1000; /* convert from uV to mV */ + + return sprintf(buf, "%d\n", x); +} + +static ssize_t show_voltage_label(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + + return sprintf(buf, "%s\n", voltage_label(data, attr->index)); +} + +static ssize_t show_alarm(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + int reg = attr->index >> ADT7462_ALARM_REG_SHIFT; + int mask = attr->index & ADT7462_ALARM_FLAG_MASK; + + if (data->alarms[reg] & mask) + return sprintf(buf, "1\n"); + else + return sprintf(buf, "0\n"); +} + +static int fan_enabled(struct adt7462_data *data, int fan) +{ + return data->fan_enabled & (1 << fan); +} + +static ssize_t show_fan_min(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + u16 temp; + + /* Only the MSB of the min fan period is stored... */ + temp = data->fan_min[attr->index]; + temp <<= 8; + + if (!fan_enabled(data, attr->index) || + !FAN_DATA_VALID(temp)) + return sprintf(buf, "0\n"); + + return sprintf(buf, "%d\n", FAN_PERIOD_TO_RPM(temp)); +} + +static ssize_t set_fan_min(struct device *dev, + struct device_attribute *devattr, + const char *buf, size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + long temp; + + if (strict_strtol(buf, 10, &temp) || !temp || + !fan_enabled(data, attr->index)) + return -EINVAL; + + temp = FAN_RPM_TO_PERIOD(temp); + temp >>= 8; + temp = SENSORS_LIMIT(temp, 1, 255); + + mutex_lock(&data->lock); + data->fan_min[attr->index] = temp; + i2c_smbus_write_byte_data(client, ADT7462_REG_FAN_MIN(attr->index), + temp); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + + if (!fan_enabled(data, attr->index) || + !FAN_DATA_VALID(data->fan[attr->index])) + return sprintf(buf, "0\n"); + + return sprintf(buf, "%d\n", + FAN_PERIOD_TO_RPM(data->fan[attr->index])); +} + +static ssize_t show_force_pwm_max(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct adt7462_data *data = adt7462_update_device(dev); + return sprintf(buf, "%d\n", (data->cfg2 & ADT7462_FSPD_MASK ? 1 : 0)); +} + +static ssize_t set_force_pwm_max(struct device *dev, + struct device_attribute *devattr, + const char *buf, + size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + long temp; + u8 reg; + + if (strict_strtol(buf, 10, &temp)) + return -EINVAL; + + mutex_lock(&data->lock); + reg = i2c_smbus_read_byte_data(client, ADT7462_REG_CFG2); + if (temp) + reg |= ADT7462_FSPD_MASK; + else + reg &= ~ADT7462_FSPD_MASK; + data->cfg2 = reg; + i2c_smbus_write_byte_data(client, ADT7462_REG_CFG2, reg); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + return sprintf(buf, "%d\n", data->pwm[attr->index]); +} + +static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, + const char *buf, size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + long temp; + + if (strict_strtol(buf, 10, &temp)) + return -EINVAL; + + temp = SENSORS_LIMIT(temp, 0, 255); + + mutex_lock(&data->lock); + data->pwm[attr->index] = temp; + i2c_smbus_write_byte_data(client, ADT7462_REG_PWM(attr->index), temp); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t show_pwm_max(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct adt7462_data *data = adt7462_update_device(dev); + return sprintf(buf, "%d\n", data->pwm_max); +} + +static ssize_t set_pwm_max(struct device *dev, + struct device_attribute *devattr, + const char *buf, + size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + long temp; + + if (strict_strtol(buf, 10, &temp)) + return -EINVAL; + + temp = SENSORS_LIMIT(temp, 0, 255); + + mutex_lock(&data->lock); + data->pwm_max = temp; + i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_MAX, temp); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t show_pwm_min(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + return sprintf(buf, "%d\n", data->pwm_min[attr->index]); +} + +static ssize_t set_pwm_min(struct device *dev, + struct device_attribute *devattr, + const char *buf, + size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + long temp; + + if (strict_strtol(buf, 10, &temp)) + return -EINVAL; + + temp = SENSORS_LIMIT(temp, 0, 255); + + mutex_lock(&data->lock); + data->pwm_min[attr->index] = temp; + i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_MIN(attr->index), + temp); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t show_pwm_hyst(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + return sprintf(buf, "%d\n", 1000 * + (data->pwm_trange[attr->index] & ADT7462_PWM_HYST_MASK)); +} + +static ssize_t set_pwm_hyst(struct device *dev, + struct device_attribute *devattr, + const char *buf, + size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + long temp; + + if (strict_strtol(buf, 10, &temp)) + return -EINVAL; + + temp = ROUND_DIV(temp, 1000); + temp = SENSORS_LIMIT(temp, 0, 15); + + /* package things up */ + temp &= ADT7462_PWM_HYST_MASK; + temp |= data->pwm_trange[attr->index] & ADT7462_PWM_RANGE_MASK; + + mutex_lock(&data->lock); + data->pwm_trange[attr->index] = temp; + i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_TRANGE(attr->index), + temp); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t show_pwm_tmax(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + + /* tmax = tmin + trange */ + int trange = trange_values[data->pwm_trange[attr->index] >> + ADT7462_PWM_RANGE_SHIFT]; + int tmin = (data->pwm_tmin[attr->index] - 64) * 1000; + + return sprintf(buf, "%d\n", tmin + trange); +} + +static ssize_t set_pwm_tmax(struct device *dev, + struct device_attribute *devattr, + const char *buf, + size_t count) +{ + int temp; + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + int tmin, trange_value; + long trange; + + if (strict_strtol(buf, 10, &trange)) + return -EINVAL; + + /* trange = tmax - tmin */ + tmin = (data->pwm_tmin[attr->index] - 64) * 1000; + trange_value = find_trange_value(trange - tmin); + + if (trange_value < 0) + return -EINVAL; + + temp = trange_value << ADT7462_PWM_RANGE_SHIFT; + temp |= data->pwm_trange[attr->index] & ADT7462_PWM_HYST_MASK; + + mutex_lock(&data->lock); + data->pwm_trange[attr->index] = temp; + i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_TRANGE(attr->index), + temp); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t show_pwm_tmin(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + return sprintf(buf, "%d\n", 1000 * (data->pwm_tmin[attr->index] - 64)); +} + +static ssize_t set_pwm_tmin(struct device *dev, + struct device_attribute *devattr, + const char *buf, + size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + long temp; + + if (strict_strtol(buf, 10, &temp)) + return -EINVAL; + + temp = ROUND_DIV(temp, 1000) + 64; + temp = SENSORS_LIMIT(temp, 0, 255); + + mutex_lock(&data->lock); + data->pwm_tmin[attr->index] = temp; + i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_TMIN(attr->index), + temp); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t show_pwm_auto(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + int cfg = data->pwm_cfg[attr->index] >> ADT7462_PWM_CHANNEL_SHIFT; + + switch (cfg) { + case 4: /* off */ + return sprintf(buf, "0\n"); + case 7: /* manual */ + return sprintf(buf, "1\n"); + default: /* automatic */ + return sprintf(buf, "2\n"); + } +} + +static void set_pwm_channel(struct i2c_client *client, + struct adt7462_data *data, + int which, + int value) +{ + int temp = data->pwm_cfg[which] & ~ADT7462_PWM_CHANNEL_MASK; + temp |= value << ADT7462_PWM_CHANNEL_SHIFT; + + mutex_lock(&data->lock); + data->pwm_cfg[which] = temp; + i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_CFG(which), temp); + mutex_unlock(&data->lock); +} + +static ssize_t set_pwm_auto(struct device *dev, + struct device_attribute *devattr, + const char *buf, + size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + long temp; + + if (strict_strtol(buf, 10, &temp)) + return -EINVAL; + + switch (temp) { + case 0: /* off */ + set_pwm_channel(client, data, attr->index, 4); + return count; + case 1: /* manual */ + set_pwm_channel(client, data, attr->index, 7); + return count; + default: + return -EINVAL; + } +} + +static ssize_t show_pwm_auto_temp(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adt7462_data *data = adt7462_update_device(dev); + int channel = data->pwm_cfg[attr->index] >> ADT7462_PWM_CHANNEL_SHIFT; + + switch (channel) { + case 0: /* temp[1234] only */ + case 1: + case 2: + case 3: + return sprintf(buf, "%d\n", (1 << channel)); + case 5: /* temp1 & temp4 */ + return sprintf(buf, "9\n"); + case 6: + return sprintf(buf, "15\n"); + default: + return sprintf(buf, "0\n"); + } +} + +static int cvt_auto_temp(int input) +{ + if (input == 0xF) + return 6; + if (input == 0x9) + return 5; + if (input < 1 || !is_power_of_2(input)) + return -EINVAL; + return ilog2(input); +} + +static ssize_t set_pwm_auto_temp(struct device *dev, + struct device_attribute *devattr, + const char *buf, + size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct i2c_client *client = to_i2c_client(dev); + struct adt7462_data *data = i2c_get_clientdata(client); + long temp; + + if (strict_strtol(buf, 10, &temp)) + return -EINVAL; + + temp = cvt_auto_temp(temp); + if (temp < 0) + return temp; + + set_pwm_channel(client, data, attr->index, temp); + + return count; +} + +static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, + set_temp_max, 0); +static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max, + set_temp_max, 1); +static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max, + set_temp_max, 2); +static SENSOR_DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_temp_max, + set_temp_max, 3); + +static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min, + set_temp_min, 0); +static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min, + set_temp_min, 1); +static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min, + set_temp_min, 2); +static SENSOR_DEVICE_ATTR(temp4_min, S_IWUSR | S_IRUGO, show_temp_min, + set_temp_min, 3); + +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); +static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3); + +static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, show_temp_label, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, show_temp_label, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, show_temp_label, NULL, 2); +static SENSOR_DEVICE_ATTR(temp4_label, S_IRUGO, show_temp_label, NULL, 3); + +static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM1 | ADT7462_LT_ALARM); +static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM1 | ADT7462_R1T_ALARM); +static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM1 | ADT7462_R2T_ALARM); +static SENSOR_DEVICE_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM1 | ADT7462_R3T_ALARM); + +static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, show_volt_max, + set_volt_max, 0); +static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, show_volt_max, + set_volt_max, 1); +static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, show_volt_max, + set_volt_max, 2); +static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, show_volt_max, + set_volt_max, 3); +static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, show_volt_max, + set_volt_max, 4); +static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, show_volt_max, + set_volt_max, 5); +static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, show_volt_max, + set_volt_max, 6); +static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, show_volt_max, + set_volt_max, 7); +static SENSOR_DEVICE_ATTR(in9_max, S_IWUSR | S_IRUGO, show_volt_max, + set_volt_max, 8); +static SENSOR_DEVICE_ATTR(in10_max, S_IWUSR | S_IRUGO, show_volt_max, + set_volt_max, 9); +static SENSOR_DEVICE_ATTR(in11_max, S_IWUSR | S_IRUGO, show_volt_max, + set_volt_max, 10); +static SENSOR_DEVICE_ATTR(in12_max, S_IWUSR | S_IRUGO, show_volt_max, + set_volt_max, 11); +static SENSOR_DEVICE_ATTR(in13_max, S_IWUSR | S_IRUGO, show_volt_max, + set_volt_max, 12); + +static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, show_volt_min, + set_volt_min, 0); +static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, show_volt_min, + set_volt_min, 1); +static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, show_volt_min, + set_volt_min, 2); +static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, show_volt_min, + set_volt_min, 3); +static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, show_volt_min, + set_volt_min, 4); +static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, show_volt_min, + set_volt_min, 5); +static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, show_volt_min, + set_volt_min, 6); +static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, show_volt_min, + set_volt_min, 7); +static SENSOR_DEVICE_ATTR(in9_min, S_IWUSR | S_IRUGO, show_volt_min, + set_volt_min, 8); +static SENSOR_DEVICE_ATTR(in10_min, S_IWUSR | S_IRUGO, show_volt_min, + set_volt_min, 9); +static SENSOR_DEVICE_ATTR(in11_min, S_IWUSR | S_IRUGO, show_volt_min, + set_volt_min, 10); +static SENSOR_DEVICE_ATTR(in12_min, S_IWUSR | S_IRUGO, show_volt_min, + set_volt_min, 11); +static SENSOR_DEVICE_ATTR(in13_min, S_IWUSR | S_IRUGO, show_volt_min, + set_volt_min, 12); + +static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_voltage, NULL, 0); +static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_voltage, NULL, 1); +static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_voltage, NULL, 2); +static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_voltage, NULL, 3); +static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_voltage, NULL, 4); +static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_voltage, NULL, 5); +static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_voltage, NULL, 6); +static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_voltage, NULL, 7); +static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_voltage, NULL, 8); +static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_voltage, NULL, 9); +static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, show_voltage, NULL, 10); +static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, show_voltage, NULL, 11); +static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, show_voltage, NULL, 12); + +static SENSOR_DEVICE_ATTR(in1_label, S_IRUGO, show_voltage_label, NULL, 0); +static SENSOR_DEVICE_ATTR(in2_label, S_IRUGO, show_voltage_label, NULL, 1); +static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_voltage_label, NULL, 2); +static SENSOR_DEVICE_ATTR(in4_label, S_IRUGO, show_voltage_label, NULL, 3); +static SENSOR_DEVICE_ATTR(in5_label, S_IRUGO, show_voltage_label, NULL, 4); +static SENSOR_DEVICE_ATTR(in6_label, S_IRUGO, show_voltage_label, NULL, 5); +static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_voltage_label, NULL, 6); +static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_voltage_label, NULL, 7); +static SENSOR_DEVICE_ATTR(in9_label, S_IRUGO, show_voltage_label, NULL, 8); +static SENSOR_DEVICE_ATTR(in10_label, S_IRUGO, show_voltage_label, NULL, 9); +static SENSOR_DEVICE_ATTR(in11_label, S_IRUGO, show_voltage_label, NULL, 10); +static SENSOR_DEVICE_ATTR(in12_label, S_IRUGO, show_voltage_label, NULL, 11); +static SENSOR_DEVICE_ATTR(in13_label, S_IRUGO, show_voltage_label, NULL, 12); + +static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM2 | ADT7462_V0_ALARM); +static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM2 | ADT7462_V7_ALARM); +static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM2 | ADT7462_V2_ALARM); +static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM2 | ADT7462_V6_ALARM); +static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM2 | ADT7462_V5_ALARM); +static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM2 | ADT7462_V4_ALARM); +static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM2 | ADT7462_V3_ALARM); +static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM2 | ADT7462_V1_ALARM); +static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM3 | ADT7462_V10_ALARM); +static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM3 | ADT7462_V9_ALARM); +static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM3 | ADT7462_V8_ALARM); +static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM3 | ADT7462_V11_ALARM); +static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM3 | ADT7462_V12_ALARM); + +static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, + set_fan_min, 0); +static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, + set_fan_min, 1); +static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, + set_fan_min, 2); +static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, + set_fan_min, 3); +static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min, + set_fan_min, 4); +static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, show_fan_min, + set_fan_min, 5); +static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, show_fan_min, + set_fan_min, 6); +static SENSOR_DEVICE_ATTR(fan8_min, S_IWUSR | S_IRUGO, show_fan_min, + set_fan_min, 7); + +static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); +static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); +static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2); +static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3); +static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4); +static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 5); +static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 6); +static SENSOR_DEVICE_ATTR(fan8_input, S_IRUGO, show_fan, NULL, 7); + +static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM4 | ADT7462_F0_ALARM); +static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM4 | ADT7462_F1_ALARM); +static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM4 | ADT7462_F2_ALARM); +static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM4 | ADT7462_F3_ALARM); +static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM4 | ADT7462_F4_ALARM); +static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM4 | ADT7462_F5_ALARM); +static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM4 | ADT7462_F6_ALARM); +static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO, show_alarm, NULL, + ADT7462_ALARM4 | ADT7462_F7_ALARM); + +static SENSOR_DEVICE_ATTR(force_pwm_max, S_IWUSR | S_IRUGO, + show_force_pwm_max, set_force_pwm_max, 0); + +static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0); +static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1); +static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2); +static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 3); + +static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO, + show_pwm_min, set_pwm_min, 0); +static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO, + show_pwm_min, set_pwm_min, 1); +static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO, + show_pwm_min, set_pwm_min, 2); +static SENSOR_DEVICE_ATTR(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO, + show_pwm_min, set_pwm_min, 3); + +static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO, + show_pwm_max, set_pwm_max, 0); +static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO, + show_pwm_max, set_pwm_max, 1); +static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO, + show_pwm_max, set_pwm_max, 2); +static SENSOR_DEVICE_ATTR(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO, + show_pwm_max, set_pwm_max, 3); + +static SENSOR_DEVICE_ATTR(temp1_auto_point1_hyst, S_IWUSR | S_IRUGO, + show_pwm_hyst, set_pwm_hyst, 0); +static SENSOR_DEVICE_ATTR(temp2_auto_point1_hyst, S_IWUSR | S_IRUGO, + show_pwm_hyst, set_pwm_hyst, 1); +static SENSOR_DEVICE_ATTR(temp3_auto_point1_hyst, S_IWUSR | S_IRUGO, + show_pwm_hyst, set_pwm_hyst, 2); +static SENSOR_DEVICE_ATTR(temp4_auto_point1_hyst, S_IWUSR | S_IRUGO, + show_pwm_hyst, set_pwm_hyst, 3); + +static SENSOR_DEVICE_ATTR(temp1_auto_point2_hyst, S_IWUSR | S_IRUGO, + show_pwm_hyst, set_pwm_hyst, 0); +static SENSOR_DEVICE_ATTR(temp2_auto_point2_hyst, S_IWUSR | S_IRUGO, + show_pwm_hyst, set_pwm_hyst, 1); +static SENSOR_DEVICE_ATTR(temp3_auto_point2_hyst, S_IWUSR | S_IRUGO, + show_pwm_hyst, set_pwm_hyst, 2); +static SENSOR_DEVICE_ATTR(temp4_auto_point2_hyst, S_IWUSR | S_IRUGO, + show_pwm_hyst, set_pwm_hyst, 3); + +static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp, S_IWUSR | S_IRUGO, + show_pwm_tmin, set_pwm_tmin, 0); +static SENSOR_DEVICE_ATTR(temp2_auto_point1_temp, S_IWUSR | S_IRUGO, + show_pwm_tmin, set_pwm_tmin, 1); +static SENSOR_DEVICE_ATTR(temp3_auto_point1_temp, S_IWUSR | S_IRUGO, + show_pwm_tmin, set_pwm_tmin, 2); +static SENSOR_DEVICE_ATTR(temp4_auto_point1_temp, S_IWUSR | S_IRUGO, + show_pwm_tmin, set_pwm_tmin, 3); + +static SENSOR_DEVICE_ATTR(temp1_auto_point2_temp, S_IWUSR | S_IRUGO, + show_pwm_tmax, set_pwm_tmax, 0); +static SENSOR_DEVICE_ATTR(temp2_auto_point2_temp, S_IWUSR | S_IRUGO, + show_pwm_tmax, set_pwm_tmax, 1); +static SENSOR_DEVICE_ATTR(temp3_auto_point2_temp, S_IWUSR | S_IRUGO, + show_pwm_tmax, set_pwm_tmax, 2); +static SENSOR_DEVICE_ATTR(temp4_auto_point2_temp, S_IWUSR | S_IRUGO, + show_pwm_tmax, set_pwm_tmax, 3); + +static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_auto, + set_pwm_auto, 0); +static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_auto, + set_pwm_auto, 1); +static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_auto, + set_pwm_auto, 2); +static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_auto, + set_pwm_auto, 3); + +static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO, + show_pwm_auto_temp, set_pwm_auto_temp, 0); +static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO, + show_pwm_auto_temp, set_pwm_auto_temp, 1); +static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO, + show_pwm_auto_temp, set_pwm_auto_temp, 2); +static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IWUSR | S_IRUGO, + show_pwm_auto_temp, set_pwm_auto_temp, 3); + +static struct attribute *adt7462_attr[] = +{ + &sensor_dev_attr_temp1_max.dev_attr.attr, + &sensor_dev_attr_temp2_max.dev_attr.attr, + &sensor_dev_attr_temp3_max.dev_attr.attr, + &sensor_dev_attr_temp4_max.dev_attr.attr, + + &sensor_dev_attr_temp1_min.dev_attr.attr, + &sensor_dev_attr_temp2_min.dev_attr.attr, + &sensor_dev_attr_temp3_min.dev_attr.attr, + &sensor_dev_attr_temp4_min.dev_attr.attr, + + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp2_input.dev_attr.attr, + &sensor_dev_attr_temp3_input.dev_attr.attr, + &sensor_dev_attr_temp4_input.dev_attr.attr, + + &sensor_dev_attr_temp1_label.dev_attr.attr, + &sensor_dev_attr_temp2_label.dev_attr.attr, + &sensor_dev_attr_temp3_label.dev_attr.attr, + &sensor_dev_attr_temp4_label.dev_attr.attr, + + &sensor_dev_attr_temp1_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_alarm.dev_attr.attr, + &sensor_dev_attr_temp4_alarm.dev_attr.attr, + + &sensor_dev_attr_in1_max.dev_attr.attr, + &sensor_dev_attr_in2_max.dev_attr.attr, + &sensor_dev_attr_in3_max.dev_attr.attr, + &sensor_dev_attr_in4_max.dev_attr.attr, + &sensor_dev_attr_in5_max.dev_attr.attr, + &sensor_dev_attr_in6_max.dev_attr.attr, + &sensor_dev_attr_in7_max.dev_attr.attr, + &sensor_dev_attr_in8_max.dev_attr.attr, + &sensor_dev_attr_in9_max.dev_attr.attr, + &sensor_dev_attr_in10_max.dev_attr.attr, + &sensor_dev_attr_in11_max.dev_attr.attr, + &sensor_dev_attr_in12_max.dev_attr.attr, + &sensor_dev_attr_in13_max.dev_attr.attr, + + &sensor_dev_attr_in1_min.dev_attr.attr, + &sensor_dev_attr_in2_min.dev_attr.attr, + &sensor_dev_attr_in3_min.dev_attr.attr, + &sensor_dev_attr_in4_min.dev_attr.attr, + &sensor_dev_attr_in5_min.dev_attr.attr, + &sensor_dev_attr_in6_min.dev_attr.attr, + &sensor_dev_attr_in7_min.dev_attr.attr, + &sensor_dev_attr_in8_min.dev_attr.attr, + &sensor_dev_attr_in9_min.dev_attr.attr, + &sensor_dev_attr_in10_min.dev_attr.attr, + &sensor_dev_attr_in11_min.dev_attr.attr, + &sensor_dev_attr_in12_min.dev_attr.attr, + &sensor_dev_attr_in13_min.dev_attr.attr, + + &sensor_dev_attr_in1_input.dev_attr.attr, + &sensor_dev_attr_in2_input.dev_attr.attr, + &sensor_dev_attr_in3_input.dev_attr.attr, + &sensor_dev_attr_in4_input.dev_attr.attr, + &sensor_dev_attr_in5_input.dev_attr.attr, + &sensor_dev_attr_in6_input.dev_attr.attr, + &sensor_dev_attr_in7_input.dev_attr.attr, + &sensor_dev_attr_in8_input.dev_attr.attr, + &sensor_dev_attr_in9_input.dev_attr.attr, + &sensor_dev_attr_in10_input.dev_attr.attr, + &sensor_dev_attr_in11_input.dev_attr.attr, + &sensor_dev_attr_in12_input.dev_attr.attr, + &sensor_dev_attr_in13_input.dev_attr.attr, + + &sensor_dev_attr_in1_label.dev_attr.attr, + &sensor_dev_attr_in2_label.dev_attr.attr, + &sensor_dev_attr_in3_label.dev_attr.attr, + &sensor_dev_attr_in4_label.dev_attr.attr, + &sensor_dev_attr_in5_label.dev_attr.attr, + &sensor_dev_attr_in6_label.dev_attr.attr, + &sensor_dev_attr_in7_label.dev_attr.attr, + &sensor_dev_attr_in8_label.dev_attr.attr, + &sensor_dev_attr_in9_label.dev_attr.attr, + &sensor_dev_attr_in10_label.dev_attr.attr, + &sensor_dev_attr_in11_label.dev_attr.attr, + &sensor_dev_attr_in12_label.dev_attr.attr, + &sensor_dev_attr_in13_label.dev_attr.attr, + + &sensor_dev_attr_in1_alarm.dev_attr.attr, + &sensor_dev_attr_in2_alarm.dev_attr.attr, + &sensor_dev_attr_in3_alarm.dev_attr.attr, + &sensor_dev_attr_in4_alarm.dev_attr.attr, + &sensor_dev_attr_in5_alarm.dev_attr.attr, + &sensor_dev_attr_in6_alarm.dev_attr.attr, + &sensor_dev_attr_in7_alarm.dev_attr.attr, + &sensor_dev_attr_in8_alarm.dev_attr.attr, + &sensor_dev_attr_in9_alarm.dev_attr.attr, + &sensor_dev_attr_in10_alarm.dev_attr.attr, + &sensor_dev_attr_in11_alarm.dev_attr.attr, + &sensor_dev_attr_in12_alarm.dev_attr.attr, + &sensor_dev_attr_in13_alarm.dev_attr.attr, + + &sensor_dev_attr_fan1_min.dev_attr.attr, + &sensor_dev_attr_fan2_min.dev_attr.attr, + &sensor_dev_attr_fan3_min.dev_attr.attr, + &sensor_dev_attr_fan4_min.dev_attr.attr, + &sensor_dev_attr_fan5_min.dev_attr.attr, + &sensor_dev_attr_fan6_min.dev_attr.attr, + &sensor_dev_attr_fan7_min.dev_attr.attr, + &sensor_dev_attr_fan8_min.dev_attr.attr, + + &sensor_dev_attr_fan1_input.dev_attr.attr, + &sensor_dev_attr_fan2_input.dev_attr.attr, + &sensor_dev_attr_fan3_input.dev_attr.attr, + &sensor_dev_attr_fan4_input.dev_attr.attr, + &sensor_dev_attr_fan5_input.dev_attr.attr, + &sensor_dev_attr_fan6_input.dev_attr.attr, + &sensor_dev_attr_fan7_input.dev_attr.attr, + &sensor_dev_attr_fan8_input.dev_attr.attr, + + &sensor_dev_attr_fan1_alarm.dev_attr.attr, + &sensor_dev_attr_fan2_alarm.dev_attr.attr, + &sensor_dev_attr_fan3_alarm.dev_attr.attr, + &sensor_dev_attr_fan4_alarm.dev_attr.attr, + &sensor_dev_attr_fan5_alarm.dev_attr.attr, + &sensor_dev_attr_fan6_alarm.dev_attr.attr, + &sensor_dev_attr_fan7_alarm.dev_attr.attr, + &sensor_dev_attr_fan8_alarm.dev_attr.attr, + + &sensor_dev_attr_force_pwm_max.dev_attr.attr, + &sensor_dev_attr_pwm1.dev_attr.attr, + &sensor_dev_attr_pwm2.dev_attr.attr, + &sensor_dev_attr_pwm3.dev_attr.attr, + &sensor_dev_attr_pwm4.dev_attr.attr, + + &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm4_auto_point1_pwm.dev_attr.attr, + + &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, + &sensor_dev_attr_pwm4_auto_point2_pwm.dev_attr.attr, + + &sensor_dev_attr_temp1_auto_point1_hyst.dev_attr.attr, + &sensor_dev_attr_temp2_auto_point1_hyst.dev_attr.attr, + &sensor_dev_attr_temp3_auto_point1_hyst.dev_attr.attr, + &sensor_dev_attr_temp4_auto_point1_hyst.dev_attr.attr, + + &sensor_dev_attr_temp1_auto_point2_hyst.dev_attr.attr, + &sensor_dev_attr_temp2_auto_point2_hyst.dev_attr.attr, + &sensor_dev_attr_temp3_auto_point2_hyst.dev_attr.attr, + &sensor_dev_attr_temp4_auto_point2_hyst.dev_attr.attr, + + &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, + &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, + &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, + &sensor_dev_attr_temp4_auto_point1_temp.dev_attr.attr, + + &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, + &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, + &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, + &sensor_dev_attr_temp4_auto_point2_temp.dev_attr.attr, + + &sensor_dev_attr_pwm1_enable.dev_attr.attr, + &sensor_dev_attr_pwm2_enable.dev_attr.attr, + &sensor_dev_attr_pwm3_enable.dev_attr.attr, + &sensor_dev_attr_pwm4_enable.dev_attr.attr, + + &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, + &sensor_dev_attr_pwm4_auto_channels_temp.dev_attr.attr, + NULL +}; + +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int adt7462_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info) +{ + struct i2c_adapter *adapter = client->adapter; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + return -ENODEV; + + if (kind <= 0) { + int vendor, device, revision; + + vendor = i2c_smbus_read_byte_data(client, ADT7462_REG_VENDOR); + if (vendor != ADT7462_VENDOR) + return -ENODEV; + + device = i2c_smbus_read_byte_data(client, ADT7462_REG_DEVICE); + if (device != ADT7462_DEVICE) + return -ENODEV; + + revision = i2c_smbus_read_byte_data(client, + ADT7462_REG_REVISION); + if (revision != ADT7462_REVISION) + return -ENODEV; + } else + dev_dbg(&adapter->dev, "detection forced\n"); + + strlcpy(info->type, "adt7462", I2C_NAME_SIZE); + + return 0; +} + +static int adt7462_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct adt7462_data *data; + int err; + + data = kzalloc(sizeof(struct adt7462_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + goto exit; + } + + i2c_set_clientdata(client, data); + mutex_init(&data->lock); + + dev_info(&client->dev, "%s chip found\n", client->name); + + /* Register sysfs hooks */ + data->attrs.attrs = adt7462_attr; + err = sysfs_create_group(&client->dev.kobj, &data->attrs); + if (err) + goto exit_free; + + data->hwmon_dev = hwmon_device_register(&client->dev); + if (IS_ERR(data->hwmon_dev)) { + err = PTR_ERR(data->hwmon_dev); + goto exit_remove; + } + + return 0; + +exit_remove: + sysfs_remove_group(&client->dev.kobj, &data->attrs); +exit_free: + kfree(data); +exit: + return err; +} + +static int adt7462_remove(struct i2c_client *client) +{ + struct adt7462_data *data = i2c_get_clientdata(client); + + hwmon_device_unregister(data->hwmon_dev); + sysfs_remove_group(&client->dev.kobj, &data->attrs); + kfree(data); + return 0; +} + +static int __init adt7462_init(void) +{ + return i2c_add_driver(&adt7462_driver); +} + +static void __exit adt7462_exit(void) +{ + i2c_del_driver(&adt7462_driver); +} + +MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); +MODULE_DESCRIPTION("ADT7462 driver"); +MODULE_LICENSE("GPL"); + +module_init(adt7462_init); +module_exit(adt7462_exit); |