Zephyr API Documentation 3.7.99
A Scalable Open Source RTOS
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max31790.h
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1/*
2 * Copyright (c) 2024 SILA Embedded Solutions GmbH
3 * SPDX-License-Identifier: Apache-2.0
4 */
5
6#ifndef ZEPHYR_INCLUDE_DRIVERS_MFD_MAX31790_H_
7#define ZEPHYR_INCLUDE_DRIVERS_MFD_MAX31790_H_
8
9#include <zephyr/sys/util.h>
11
12#define MAX31790_OSCILLATOR_FREQUENCY_IN_HZ 32768
13#define MAX31790_PWMTARGETDUTYCYCLE_MAXIMUM ((1 << 9) - 1)
14#define MAX31790_TACHTARGETCOUNT_MAXIMUM ((1 << 11) - 1)
15#define MAX31790_CHANNEL_COUNT 6
16#define MAX31790_RESET_TIMEOUT_IN_US 1000
17
18#define MAX37190_REGISTER_GLOBALCONFIGURATION 0x00
19#define MAX37190_REGISTER_PWMFREQUENCY 0x01
20#define MAX37190_REGISTER_FANCONFIGURATION(channel) (0x02 + channel)
21#define MAX31790_REGISTER_FANDYNAMICS(channel) (0x08 + channel)
22#define MAX37190_REGISTER_FANFAULTSTATUS1 0x11
23#define MAX37190_REGISTER_TACHCOUNTMSB(channel) (0x18 + 2 * channel)
24#define MAX31790_REGISTER_PWMOUTTARGETDUTYCYCLEMSB(channel) (0x40 + 2 * channel)
25#define MAX31790_REGISTER_TACHTARGETCOUNTMSB(channel) (0x50 + 2 * channel)
26
27#define MAX37190_GLOBALCONFIGURATION_STANDBY_BIT BIT(7)
28#define MAX37190_GLOBALCONFIGURATION_RESET_BIT BIT(6)
29#define MAX37190_GLOBALCONFIGURATION_BUSTIMEOUT_BIT BIT(5)
30#define MAX37190_GLOBALCONFIGURATION_OSCILLATORSELECTION_BIT BIT(3)
31#define MAX37190_GLOBALCONFIGURATION_I2CWATCHDOGSTATUS_BIT BIT(0)
32#define MAX37190_FANXCONFIGURATION_MONITOR_BIT BIT(4)
33#define MAX37190_FANXCONFIGURATION_TACHINPUTENABLED_BIT BIT(3)
34#define MAX37190_FANXCONFIGURATION_LOCKEDROTOR_BIT BIT(2)
35#define MAX37190_FANXCONFIGURATION_LOCKEDROTORPOLARITY_BIT BIT(1)
36#define MAX37190_FANXCONFIGURATION_TACH_BIT BIT(0)
37#define MAX37190_FANXCONFIGURATION_MODE_BIT BIT(7)
38#define MAX37190_FANXDYNAMICS_ASYMMETRICRATEOFCHANGE_BIT BIT(1)
39
40#define MAX37190_GLOBALCONFIGURATION_I2CWATCHDOG_LENGTH 2
41#define MAX37190_GLOBALCONFIGURATION_I2CWATCHDOG_POS 1
42#define MAX37190_FANXDYNAMICS_SPEEDRANGE_LENGTH 3
43#define MAX37190_FANXDYNAMICS_SPEEDRANGE_POS 5
44#define MAX37190_FANXDYNAMICS_PWMRATEOFCHANGE_LENGTH 3
45#define MAX37190_FANXDYNAMICS_PWMRATEOFCHANGE_POS 2
46#define MAX37190_PWMFREQUENCY_PWM_LENGTH 4
47#define MAX37190_PWMFREQUENCY_PWM4TO6_POS 4
48#define MAX37190_PWMFREQUENCY_PWM1TO3_LENGTH 4
49#define MAX37190_PWMFREQUENCY_PWM1TO3_POS 0
50#define MAX37190_FANXCONFIGURATION_SPINUP_LENGTH 2
51#define MAX37190_FANXCONFIGURATION_SPINUP_POS 5
52
53#define MAX31790_FANXDYNAMCIS_SPEED_RANGE_GET(value) \
54 FIELD_GET(GENMASK(MAX37190_FANXDYNAMICS_SPEEDRANGE_LENGTH + \
55 MAX37190_FANXDYNAMICS_SPEEDRANGE_POS - 1, \
56 MAX37190_FANXDYNAMICS_SPEEDRANGE_POS), \
57 value)
58
59#define MAX31790_FLAG_SPEED_RANGE_GET(flags) \
60 FIELD_GET(GENMASK(MAX37190_FANXDYNAMICS_SPEEDRANGE_LENGTH + \
61 PWM_MAX31790_FLAG_SPEED_RANGE_POS - 1, \
62 PWM_MAX31790_FLAG_SPEED_RANGE_POS), \
63 flags)
64#define MAX31790_FLAG_PWM_RATE_OF_CHANGE_GET(flags) \
65 FIELD_GET(GENMASK(MAX37190_FANXDYNAMICS_PWMRATEOFCHANGE_LENGTH + \
66 PWM_MAX31790_FLAG_PWM_RATE_OF_CHANGE_POS - 1, \
67 PWM_MAX31790_FLAG_PWM_RATE_OF_CHANGE_POS), \
68 flags)
69
70#endif /* ZEPHYR_INCLUDE_DRIVERS_MFD_MAX31790_H_ */
Misc utilities.
Macro utilities.