| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * A hwmon driver for the Analog Devices ADT7462 |
| * Copyright (C) 2008 IBM |
| * |
| * Author: Darrick J. Wong <darrick.wong@oracle.com> |
| */ |
| |
| #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/log2.h> |
| #include <linux/slab.h> |
| |
| /* Addresses to scan */ |
| static const unsigned short normal_i2c[] = { 0x58, 0x5C, I2C_CLIENT_END }; |
| |
| /* 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 4 /* 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 13 |
| |
| #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) |
| |
| struct adt7462_data { |
| struct i2c_client *client; |
| 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]; |
| }; |
| |
| /* |
| * 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 0; |
| } |
| |
| 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 0; |
| } |
| |
| 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"; |
| } |
| /* fall through */ |
| 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"; |
| } |
| /* fall through */ |
| 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; |
| } |
| /* fall through */ |
| 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; |
| } |
| /* fall through */ |
| 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 -EINVAL; |
| } |
| |
| static struct adt7462_data *adt7462_update_device(struct device *dev) |
| { |
| struct adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->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 temp_min_show(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 temp_min_store(struct device *dev, |
| struct device_attribute *devattr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| struct adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->client; |
| long temp; |
| |
| if (kstrtol(buf, 10, &temp) || !temp_enabled(data, attr->index)) |
| return -EINVAL; |
| |
| temp = clamp_val(temp, -64000, 191000); |
| temp = DIV_ROUND_CLOSEST(temp, 1000) + 64; |
| |
| 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 temp_max_show(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 temp_max_store(struct device *dev, |
| struct device_attribute *devattr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| struct adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->client; |
| long temp; |
| |
| if (kstrtol(buf, 10, &temp) || !temp_enabled(data, attr->index)) |
| return -EINVAL; |
| |
| temp = clamp_val(temp, -64000, 191000); |
| temp = DIV_ROUND_CLOSEST(temp, 1000) + 64; |
| |
| 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 temp_show(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 temp_label_show(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 volt_max_show(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 volt_max_store(struct device *dev, |
| struct device_attribute *devattr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| struct adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->client; |
| int x = voltage_multiplier(data, attr->index); |
| long temp; |
| |
| if (kstrtol(buf, 10, &temp) || !x) |
| return -EINVAL; |
| |
| temp = clamp_val(temp, 0, 255 * x / 1000); |
| temp *= 1000; /* convert mV to uV */ |
| temp = DIV_ROUND_CLOSEST(temp, x); |
| |
| 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 volt_min_show(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 volt_min_store(struct device *dev, |
| struct device_attribute *devattr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| struct adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->client; |
| int x = voltage_multiplier(data, attr->index); |
| long temp; |
| |
| if (kstrtol(buf, 10, &temp) || !x) |
| return -EINVAL; |
| |
| temp = clamp_val(temp, 0, 255 * x / 1000); |
| temp *= 1000; /* convert mV to uV */ |
| temp = DIV_ROUND_CLOSEST(temp, x); |
| |
| 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 voltage_show(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 voltage_label_show(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 alarm_show(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 fan_min_show(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 fan_min_store(struct device *dev, |
| struct device_attribute *devattr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| struct adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->client; |
| long temp; |
| |
| if (kstrtol(buf, 10, &temp) || !temp || |
| !fan_enabled(data, attr->index)) |
| return -EINVAL; |
| |
| temp = FAN_RPM_TO_PERIOD(temp); |
| temp >>= 8; |
| temp = clamp_val(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 fan_show(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 force_pwm_max_show(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 force_pwm_max_store(struct device *dev, |
| struct device_attribute *devattr, |
| const char *buf, size_t count) |
| { |
| struct adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->client; |
| long temp; |
| u8 reg; |
| |
| if (kstrtol(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 pwm_show(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 pwm_store(struct device *dev, struct device_attribute *devattr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| struct adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->client; |
| long temp; |
| |
| if (kstrtol(buf, 10, &temp)) |
| return -EINVAL; |
| |
| temp = clamp_val(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 pwm_max_show(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 pwm_max_store(struct device *dev, |
| struct device_attribute *devattr, |
| const char *buf, size_t count) |
| { |
| struct adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->client; |
| long temp; |
| |
| if (kstrtol(buf, 10, &temp)) |
| return -EINVAL; |
| |
| temp = clamp_val(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 pwm_min_show(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 pwm_min_store(struct device *dev, |
| struct device_attribute *devattr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| struct adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->client; |
| long temp; |
| |
| if (kstrtol(buf, 10, &temp)) |
| return -EINVAL; |
| |
| temp = clamp_val(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 pwm_hyst_show(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 pwm_hyst_store(struct device *dev, |
| struct device_attribute *devattr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| struct adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->client; |
| long temp; |
| |
| if (kstrtol(buf, 10, &temp)) |
| return -EINVAL; |
| |
| temp = clamp_val(temp, 0, 15000); |
| temp = DIV_ROUND_CLOSEST(temp, 1000); |
| |
| /* 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 pwm_tmax_show(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 pwm_tmax_store(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 adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->client; |
| int tmin, trange_value; |
| long trange; |
| |
| if (kstrtol(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 trange_value; |
| |
| 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 pwm_tmin_show(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 pwm_tmin_store(struct device *dev, |
| struct device_attribute *devattr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| struct adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->client; |
| long temp; |
| |
| if (kstrtol(buf, 10, &temp)) |
| return -EINVAL; |
| |
| temp = clamp_val(temp, -64000, 191000); |
| temp = DIV_ROUND_CLOSEST(temp, 1000) + 64; |
| |
| 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 pwm_auto_show(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 pwm_auto_store(struct device *dev, |
| struct device_attribute *devattr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| struct adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->client; |
| long temp; |
| |
| if (kstrtol(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 pwm_auto_temp_show(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 pwm_auto_temp_store(struct device *dev, |
| struct device_attribute *devattr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| struct adt7462_data *data = dev_get_drvdata(dev); |
| struct i2c_client *client = data->client; |
| long temp; |
| |
| if (kstrtol(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_RW(temp1_max, temp_max, 0); |
| static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); |
| static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2); |
| static SENSOR_DEVICE_ATTR_RW(temp4_max, temp_max, 3); |
| |
| static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0); |
| static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1); |
| static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2); |
| static SENSOR_DEVICE_ATTR_RW(temp4_min, temp_min, 3); |
| |
| static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); |
| static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); |
| static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); |
| static SENSOR_DEVICE_ATTR_RO(temp4_input, temp, 3); |
| |
| static SENSOR_DEVICE_ATTR_RO(temp1_label, temp_label, 0); |
| static SENSOR_DEVICE_ATTR_RO(temp2_label, temp_label, 1); |
| static SENSOR_DEVICE_ATTR_RO(temp3_label, temp_label, 2); |
| static SENSOR_DEVICE_ATTR_RO(temp4_label, temp_label, 3); |
| |
| static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, |
| ADT7462_ALARM1 | ADT7462_LT_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, |
| ADT7462_ALARM1 | ADT7462_R1T_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, |
| ADT7462_ALARM1 | ADT7462_R2T_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(temp4_alarm, alarm, |
| ADT7462_ALARM1 | ADT7462_R3T_ALARM); |
| |
| static SENSOR_DEVICE_ATTR_RW(in1_max, volt_max, 0); |
| static SENSOR_DEVICE_ATTR_RW(in2_max, volt_max, 1); |
| static SENSOR_DEVICE_ATTR_RW(in3_max, volt_max, 2); |
| static SENSOR_DEVICE_ATTR_RW(in4_max, volt_max, 3); |
| static SENSOR_DEVICE_ATTR_RW(in5_max, volt_max, 4); |
| static SENSOR_DEVICE_ATTR_RW(in6_max, volt_max, 5); |
| static SENSOR_DEVICE_ATTR_RW(in7_max, volt_max, 6); |
| static SENSOR_DEVICE_ATTR_RW(in8_max, volt_max, 7); |
| static SENSOR_DEVICE_ATTR_RW(in9_max, volt_max, 8); |
| static SENSOR_DEVICE_ATTR_RW(in10_max, volt_max, 9); |
| static SENSOR_DEVICE_ATTR_RW(in11_max, volt_max, 10); |
| static SENSOR_DEVICE_ATTR_RW(in12_max, volt_max, 11); |
| static SENSOR_DEVICE_ATTR_RW(in13_max, volt_max, 12); |
| |
| static SENSOR_DEVICE_ATTR_RW(in1_min, volt_min, 0); |
| static SENSOR_DEVICE_ATTR_RW(in2_min, volt_min, 1); |
| static SENSOR_DEVICE_ATTR_RW(in3_min, volt_min, 2); |
| static SENSOR_DEVICE_ATTR_RW(in4_min, volt_min, 3); |
| static SENSOR_DEVICE_ATTR_RW(in5_min, volt_min, 4); |
| static SENSOR_DEVICE_ATTR_RW(in6_min, volt_min, 5); |
| static SENSOR_DEVICE_ATTR_RW(in7_min, volt_min, 6); |
| static SENSOR_DEVICE_ATTR_RW(in8_min, volt_min, 7); |
| static SENSOR_DEVICE_ATTR_RW(in9_min, volt_min, 8); |
| static SENSOR_DEVICE_ATTR_RW(in10_min, volt_min, 9); |
| static SENSOR_DEVICE_ATTR_RW(in11_min, volt_min, 10); |
| static SENSOR_DEVICE_ATTR_RW(in12_min, volt_min, 11); |
| static SENSOR_DEVICE_ATTR_RW(in13_min, volt_min, 12); |
| |
| static SENSOR_DEVICE_ATTR_RO(in1_input, voltage, 0); |
| static SENSOR_DEVICE_ATTR_RO(in2_input, voltage, 1); |
| static SENSOR_DEVICE_ATTR_RO(in3_input, voltage, 2); |
| static SENSOR_DEVICE_ATTR_RO(in4_input, voltage, 3); |
| static SENSOR_DEVICE_ATTR_RO(in5_input, voltage, 4); |
| static SENSOR_DEVICE_ATTR_RO(in6_input, voltage, 5); |
| static SENSOR_DEVICE_ATTR_RO(in7_input, voltage, 6); |
| static SENSOR_DEVICE_ATTR_RO(in8_input, voltage, 7); |
| static SENSOR_DEVICE_ATTR_RO(in9_input, voltage, 8); |
| static SENSOR_DEVICE_ATTR_RO(in10_input, voltage, 9); |
| static SENSOR_DEVICE_ATTR_RO(in11_input, voltage, 10); |
| static SENSOR_DEVICE_ATTR_RO(in12_input, voltage, 11); |
| static SENSOR_DEVICE_ATTR_RO(in13_input, voltage, 12); |
| |
| static SENSOR_DEVICE_ATTR_RO(in1_label, voltage_label, 0); |
| static SENSOR_DEVICE_ATTR_RO(in2_label, voltage_label, 1); |
| static SENSOR_DEVICE_ATTR_RO(in3_label, voltage_label, 2); |
| static SENSOR_DEVICE_ATTR_RO(in4_label, voltage_label, 3); |
| static SENSOR_DEVICE_ATTR_RO(in5_label, voltage_label, 4); |
| static SENSOR_DEVICE_ATTR_RO(in6_label, voltage_label, 5); |
| static SENSOR_DEVICE_ATTR_RO(in7_label, voltage_label, 6); |
| static SENSOR_DEVICE_ATTR_RO(in8_label, voltage_label, 7); |
| static SENSOR_DEVICE_ATTR_RO(in9_label, voltage_label, 8); |
| static SENSOR_DEVICE_ATTR_RO(in10_label, voltage_label, 9); |
| static SENSOR_DEVICE_ATTR_RO(in11_label, voltage_label, 10); |
| static SENSOR_DEVICE_ATTR_RO(in12_label, voltage_label, 11); |
| static SENSOR_DEVICE_ATTR_RO(in13_label, voltage_label, 12); |
| |
| static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, |
| ADT7462_ALARM2 | ADT7462_V0_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, |
| ADT7462_ALARM2 | ADT7462_V7_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, |
| ADT7462_ALARM2 | ADT7462_V2_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, |
| ADT7462_ALARM2 | ADT7462_V6_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, |
| ADT7462_ALARM2 | ADT7462_V5_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(in6_alarm, alarm, |
| ADT7462_ALARM2 | ADT7462_V4_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(in7_alarm, alarm, |
| ADT7462_ALARM2 | ADT7462_V3_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(in8_alarm, alarm, |
| ADT7462_ALARM2 | ADT7462_V1_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(in9_alarm, alarm, |
| ADT7462_ALARM3 | ADT7462_V10_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(in10_alarm, alarm, |
| ADT7462_ALARM3 | ADT7462_V9_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(in11_alarm, alarm, |
| ADT7462_ALARM3 | ADT7462_V8_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(in12_alarm, alarm, |
| ADT7462_ALARM3 | ADT7462_V11_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(in13_alarm, alarm, |
| ADT7462_ALARM3 | ADT7462_V12_ALARM); |
| |
| static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0); |
| static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1); |
| static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2); |
| static SENSOR_DEVICE_ATTR_RW(fan4_min, fan_min, 3); |
| static SENSOR_DEVICE_ATTR_RW(fan5_min, fan_min, 4); |
| static SENSOR_DEVICE_ATTR_RW(fan6_min, fan_min, 5); |
| static SENSOR_DEVICE_ATTR_RW(fan7_min, fan_min, 6); |
| static SENSOR_DEVICE_ATTR_RW(fan8_min, fan_min, 7); |
| |
| static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0); |
| static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1); |
| static SENSOR_DEVICE_ATTR_RO(fan3_input, fan, 2); |
| static SENSOR_DEVICE_ATTR_RO(fan4_input, fan, 3); |
| static SENSOR_DEVICE_ATTR_RO(fan5_input, fan, 4); |
| static SENSOR_DEVICE_ATTR_RO(fan6_input, fan, 5); |
| static SENSOR_DEVICE_ATTR_RO(fan7_input, fan, 6); |
| static SENSOR_DEVICE_ATTR_RO(fan8_input, fan, 7); |
| |
| static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, |
| ADT7462_ALARM4 | ADT7462_F0_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, |
| ADT7462_ALARM4 | ADT7462_F1_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(fan3_alarm, alarm, |
| ADT7462_ALARM4 | ADT7462_F2_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(fan4_alarm, alarm, |
| ADT7462_ALARM4 | ADT7462_F3_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(fan5_alarm, alarm, |
| ADT7462_ALARM4 | ADT7462_F4_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(fan6_alarm, alarm, |
| ADT7462_ALARM4 | ADT7462_F5_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(fan7_alarm, alarm, |
| ADT7462_ALARM4 | ADT7462_F6_ALARM); |
| static SENSOR_DEVICE_ATTR_RO(fan8_alarm, alarm, |
| ADT7462_ALARM4 | ADT7462_F7_ALARM); |
| |
| static SENSOR_DEVICE_ATTR_RW(force_pwm_max, force_pwm_max, 0); |
| |
| static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0); |
| static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1); |
| static SENSOR_DEVICE_ATTR_RW(pwm3, pwm, 2); |
| static SENSOR_DEVICE_ATTR_RW(pwm4, pwm, 3); |
| |
| static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point1_pwm, pwm_min, 0); |
| static SENSOR_DEVICE_ATTR_RW(pwm2_auto_point1_pwm, pwm_min, 1); |
| static SENSOR_DEVICE_ATTR_RW(pwm3_auto_point1_pwm, pwm_min, 2); |
| static SENSOR_DEVICE_ATTR_RW(pwm4_auto_point1_pwm, pwm_min, 3); |
| |
| static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point2_pwm, pwm_max, 0); |
| static SENSOR_DEVICE_ATTR_RW(pwm2_auto_point2_pwm, pwm_max, 1); |
| static SENSOR_DEVICE_ATTR_RW(pwm3_auto_point2_pwm, pwm_max, 2); |
| static SENSOR_DEVICE_ATTR_RW(pwm4_auto_point2_pwm, pwm_max, 3); |
| |
| static SENSOR_DEVICE_ATTR_RW(temp1_auto_point1_hyst, pwm_hyst, 0); |
| static SENSOR_DEVICE_ATTR_RW(temp2_auto_point1_hyst, pwm_hyst, 1); |
| static SENSOR_DEVICE_ATTR_RW(temp3_auto_point1_hyst, pwm_hyst, 2); |
| static SENSOR_DEVICE_ATTR_RW(temp4_auto_point1_hyst, pwm_hyst, 3); |
| |
| static SENSOR_DEVICE_ATTR_RW(temp1_auto_point2_hyst, pwm_hyst, 0); |
| static SENSOR_DEVICE_ATTR_RW(temp2_auto_point2_hyst, pwm_hyst, 1); |
| static SENSOR_DEVICE_ATTR_RW(temp3_auto_point2_hyst, pwm_hyst, 2); |
| static SENSOR_DEVICE_ATTR_RW(temp4_auto_point2_hyst, pwm_hyst, 3); |
| |
| static SENSOR_DEVICE_ATTR_RW(temp1_auto_point1_temp, pwm_tmin, 0); |
| static SENSOR_DEVICE_ATTR_RW(temp2_auto_point1_temp, pwm_tmin, 1); |
| static SENSOR_DEVICE_ATTR_RW(temp3_auto_point1_temp, pwm_tmin, 2); |
| static SENSOR_DEVICE_ATTR_RW(temp4_auto_point1_temp, pwm_tmin, 3); |
| |
| static SENSOR_DEVICE_ATTR_RW(temp1_auto_point2_temp, pwm_tmax, 0); |
| static SENSOR_DEVICE_ATTR_RW(temp2_auto_point2_temp, pwm_tmax, 1); |
| static SENSOR_DEVICE_ATTR_RW(temp3_auto_point2_temp, pwm_tmax, 2); |
| static SENSOR_DEVICE_ATTR_RW(temp4_auto_point2_temp, pwm_tmax, 3); |
| |
| static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm_auto, 0); |
| static SENSOR_DEVICE_ATTR_RW(pwm2_enable, pwm_auto, 1); |
| static SENSOR_DEVICE_ATTR_RW(pwm3_enable, pwm_auto, 2); |
| static SENSOR_DEVICE_ATTR_RW(pwm4_enable, pwm_auto, 3); |
| |
| static SENSOR_DEVICE_ATTR_RW(pwm1_auto_channels_temp, pwm_auto_temp, 0); |
| static SENSOR_DEVICE_ATTR_RW(pwm2_auto_channels_temp, pwm_auto_temp, 1); |
| static SENSOR_DEVICE_ATTR_RW(pwm3_auto_channels_temp, pwm_auto_temp, 2); |
| static SENSOR_DEVICE_ATTR_RW(pwm4_auto_channels_temp, pwm_auto_temp, 3); |
| |
| static struct attribute *adt7462_attrs[] = { |
| &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 |
| }; |
| |
| ATTRIBUTE_GROUPS(adt7462); |
| |
| /* Return 0 if detection is successful, -ENODEV otherwise */ |
| static int adt7462_detect(struct i2c_client *client, |
| struct i2c_board_info *info) |
| { |
| struct i2c_adapter *adapter = client->adapter; |
| int vendor, device, revision; |
| |
| if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
| return -ENODEV; |
| |
| 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; |
| |
| strlcpy(info->type, "adt7462", I2C_NAME_SIZE); |
| |
| return 0; |
| } |
| |
| static int adt7462_probe(struct i2c_client *client, |
| const struct i2c_device_id *id) |
| { |
| struct device *dev = &client->dev; |
| struct adt7462_data *data; |
| struct device *hwmon_dev; |
| |
| data = devm_kzalloc(dev, sizeof(struct adt7462_data), GFP_KERNEL); |
| if (!data) |
| return -ENOMEM; |
| |
| data->client = client; |
| mutex_init(&data->lock); |
| |
| dev_info(&client->dev, "%s chip found\n", client->name); |
| |
| hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, |
| data, |
| adt7462_groups); |
| return PTR_ERR_OR_ZERO(hwmon_dev); |
| } |
| |
| static const struct i2c_device_id adt7462_id[] = { |
| { "adt7462", 0 }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(i2c, adt7462_id); |
| |
| static struct i2c_driver adt7462_driver = { |
| .class = I2C_CLASS_HWMON, |
| .driver = { |
| .name = "adt7462", |
| }, |
| .probe = adt7462_probe, |
| .id_table = adt7462_id, |
| .detect = adt7462_detect, |
| .address_list = normal_i2c, |
| }; |
| |
| module_i2c_driver(adt7462_driver); |
| |
| MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>"); |
| MODULE_DESCRIPTION("ADT7462 driver"); |
| MODULE_LICENSE("GPL"); |
