max31790.h

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/*
 * Copyright (c) 2024 SILA Embedded Solutions GmbH
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_DRIVERS_MFD_MAX31790_H_
#define ZEPHYR_INCLUDE_DRIVERS_MFD_MAX31790_H_
 
#include <zephyr/sys/util.h>
#include <zephyr/sys/util_macro.h>
 
#define MAX31790_OSCILLATOR_FREQUENCY_IN_HZ 32768
#define MAX31790_PWMTARGETDUTYCYCLE_MAXIMUM ((1 << 9) - 1)
#define MAX31790_TACHTARGETCOUNT_MAXIMUM ((1 << 11) - 1)
#define MAX31790_CHANNEL_COUNT 6
#define MAX31790_RESET_TIMEOUT_IN_US 1000
 
#define MAX37190_REGISTER_GLOBALCONFIGURATION 0x00
#define MAX37190_REGISTER_PWMFREQUENCY 0x01
#define MAX37190_REGISTER_FANCONFIGURATION(channel) (0x02 + channel)
#define MAX31790_REGISTER_FANDYNAMICS(channel) (0x08 + channel)
#define MAX37190_REGISTER_FANFAULTSTATUS1 0x11
#define MAX37190_REGISTER_TACHCOUNTMSB(channel) (0x18 + 2 * channel)
#define MAX31790_REGISTER_PWMOUTTARGETDUTYCYCLEMSB(channel) (0x40 + 2 * channel)
#define MAX31790_REGISTER_TACHTARGETCOUNTMSB(channel) (0x50 + 2 * channel)
 
#define MAX37190_GLOBALCONFIGURATION_STANDBY_BIT BIT(7)
#define MAX37190_GLOBALCONFIGURATION_RESET_BIT BIT(6)
#define MAX37190_GLOBALCONFIGURATION_BUSTIMEOUT_BIT BIT(5)
#define MAX37190_GLOBALCONFIGURATION_OSCILLATORSELECTION_BIT BIT(3)
#define MAX37190_GLOBALCONFIGURATION_I2CWATCHDOGSTATUS_BIT BIT(0)
#define MAX37190_FANXCONFIGURATION_MONITOR_BIT BIT(4)
#define MAX37190_FANXCONFIGURATION_TACHINPUTENABLED_BIT BIT(3)
#define MAX37190_FANXCONFIGURATION_LOCKEDROTOR_BIT BIT(2)
#define MAX37190_FANXCONFIGURATION_LOCKEDROTORPOLARITY_BIT BIT(1)
#define MAX37190_FANXCONFIGURATION_TACH_BIT BIT(0)
#define MAX37190_FANXCONFIGURATION_MODE_BIT BIT(7)
#define MAX37190_FANXDYNAMICS_ASYMMETRICRATEOFCHANGE_BIT BIT(1)
 
#define MAX37190_GLOBALCONFIGURATION_I2CWATCHDOG_LENGTH 2
#define MAX37190_GLOBALCONFIGURATION_I2CWATCHDOG_POS 1
#define MAX37190_FANXDYNAMICS_SPEEDRANGE_LENGTH 3
#define MAX37190_FANXDYNAMICS_SPEEDRANGE_POS 5
#define MAX37190_FANXDYNAMICS_PWMRATEOFCHANGE_LENGTH 3
#define MAX37190_FANXDYNAMICS_PWMRATEOFCHANGE_POS 2
#define MAX37190_PWMFREQUENCY_PWM_LENGTH 4
#define MAX37190_PWMFREQUENCY_PWM4TO6_POS 4
#define MAX37190_PWMFREQUENCY_PWM1TO3_LENGTH 4
#define MAX37190_PWMFREQUENCY_PWM1TO3_POS 0
#define MAX37190_FANXCONFIGURATION_SPINUP_LENGTH 2
#define MAX37190_FANXCONFIGURATION_SPINUP_POS 5
 
#define MAX31790_FANXDYNAMCIS_SPEED_RANGE_GET(value) \
 FIELD_GET(GENMASK(MAX37190_FANXDYNAMICS_SPEEDRANGE_LENGTH + \
 MAX37190_FANXDYNAMICS_SPEEDRANGE_POS - 1, \
 MAX37190_FANXDYNAMICS_SPEEDRANGE_POS), \
 value)
 
#define MAX31790_FLAG_SPEED_RANGE_GET(flags) \
 FIELD_GET(GENMASK(MAX37190_FANXDYNAMICS_SPEEDRANGE_LENGTH + \
 PWM_MAX31790_FLAG_SPEED_RANGE_POS - 1, \
 PWM_MAX31790_FLAG_SPEED_RANGE_POS), \
 flags)
#define MAX31790_FLAG_PWM_RATE_OF_CHANGE_GET(flags) \
 FIELD_GET(GENMASK(MAX37190_FANXDYNAMICS_PWMRATEOFCHANGE_LENGTH + \
 PWM_MAX31790_FLAG_PWM_RATE_OF_CHANGE_POS - 1, \
 PWM_MAX31790_FLAG_PWM_RATE_OF_CHANGE_POS), \
 flags)
 
#endif /* ZEPHYR_INCLUDE_DRIVERS_MFD_MAX31790_H_ */