max22200.h File Reference

Header file of MAX22200 Driver. More...

#include <stdint.h>
#include <stdbool.h>
#include "no_os_gpio.h"
#include "no_os_spi.h"
#include "no_os_util.h"

Include dependency graph for max22200.h:

Classes
struct	max22200_init_param
struct	max22200_desc

Macros
#define	MAX22200_FRAME_SIZE   4
#define	MAX22200_CHANNELS   8
#define	MAX22200_CHANNELS_CONFIG   4
#define	MAX22200_MAX_CHN_IDX   7
#define	MAX22200_HIT_MAX_VAL   0x7F
#define	MAX22200_HIT_NO_TIME   0x00
#define	MAX22200_R1B   NO_OS_BIT(0)
#define	MAX22200_STATUS_REG   0x00
#define	MAX22200_CFG_CH(x)
#define	MAX22200_FAULT_REG   0x09
#define	MAX22200_CFG_DPM_REG   0x0A
#define	MAX22200_RW_MASK   NO_OS_BIT(7)
#define	MAX22200_ADDR_MASK   NO_OS_GENMASK(6, 0)
#define	MAX22200_ONCH_MASK(x)
#define	MAX22200_STATUS_ONCH_MASK   NO_OS_GENMASK(31, 24)
#define	MAX22200_STATUS_FREQ_MASK   NO_OS_BIT(16)
#define	MAX22200_STATUS_FAULT_MASK(x)
#define	MAX22200_STATUS_MODE_MASK   NO_OS_GENMASK(15, 8)
#define	MAX22200_CH_MODE_MASK(x)
#define	MAX22200_STATUS_FLAG_MASK   NO_OS_GENMASK(7, 0)
#define	MAX22200_ACTIVE_MASK   NO_OS_BIT(0)
#define	MAX22200_HFS_MASK   NO_OS_BIT(31)
#define	MAX22200_HOLD_MASK   NO_OS_GENMASK(30, 24)
#define	MAX22200_TRGNSP_IO_MASK   NO_OS_BIT(23)
#define	MAX22200_HIT_MASK   NO_OS_GENMASK(22, 16)
#define	MAX22200_HIT_T_MASK   NO_OS_GENMASK(15, 8)
#define	MAX22200_VDRNCDR_MASK   NO_OS_BIT(7)
#define	MAX22200_HSNLS_MASK   NO_OS_BIT(6)
#define	MAX22200_FREQ_CFG_MASK   NO_OS_GENMASK(5, 4)
#define	MAX22200_CH_ENABLE_MASK(x)
#define	MAX22200_DPM_ISTART_MASK   NO_OS_GENMASK(14, 8)
#define	MAX22200_DPM_TDEB_MASK   NO_OS_GENMASK(7, 4)
#define	MAX22200_DPM_IPTH_MASK   NO_OS_GENMASK(3, 0)

Enumerations
enum	max22200_fault_mask {   MAX22200_M_UVM = 17 ,   MAX22200_M_COMF ,   MAX22200_M_DPM ,   MAX22200_M_HHF ,   MAX22200_M_OLF ,   MAX22200_M_OCP ,   MAX22200_M_OVT }
enum	max22200_chopping_freq {   MAX22200_FREQ_100KHZ ,   MAX22200_FREQ_80KHZ }
enum	max22200_ch_op_mode {   MAX22200_INDEPENDENT_MODE ,   MAX22200_PARALLEL_MODE ,   MAX22200_HALF_BRIDGE_MODE }
enum	max22200_scale {   MAX22200_FULLSCALE ,   MAX22200_HALF_FULL_SCALE }
enum	max22200_trig {   MAX22200_ONCH_SPI ,   MAX22200_TRIG }
enum	max22200_ch_drive {   MAX22200_CURRENT_DRIVE ,   MAX22200_VOLTAGE_DRIVE }
enum	max22200_ch_side {   MAX22200_LOW_SIDE ,   MAX22200_HIGH_SIDE }
enum	max22200_ch_freq {   MAX22200_FREQMAIN_DIV_4 ,   MAX22200_FREQMAIN_DIV_3 ,   MAX22200_FREQMAIN_DIV_2 ,   MAX22200_FREQMAIN }
enum	max22200_ch_enable {   MAX22200_HHF_ENABLE ,   MAX22200_DPM_ENABLE ,   MAX22200_OL_ENABLE ,   MAX22200_SRC }

Functions
int	max22200_reg_read (struct max22200_desc *, uint32_t, uint32_t *)
	Read data from desired register for MAX22200.
int	max22200_reg_write (struct max22200_desc *, uint32_t, uint32_t)
	Write data to desired register for MAX22200.
int	max22200_reg_update (struct max22200_desc *, uint32_t, uint32_t, uint32_t)
	Update data in the desired register.
int	max22200_set_trig_state (struct max22200_desc *, bool)
	Set external trigger's state of the MAX22200.
int	max22200_set_ch_state (struct max22200_desc *, uint32_t, bool)
	Set channel state for specific channel.
int	max22200_fault_mask_set (struct max22200_desc *, enum max22200_fault_mask, bool)
	Set fault mask bits in the status register.
int	max22200_set_chop_freq (struct max22200_desc *, enum max22200_chopping_freq)
	Set chopping frequency value.
int	max22200_set_ch_hit (struct max22200_desc *, uint32_t, uint8_t, uint8_t)
	Set channel HIT time and HIT current.
int	max22200_set_ch_hold (struct max22200_desc *, uint32_t, uint8_t)
	Set channel hold current.
int	max22200_set_ch_scale (struct max22200_desc *, uint32_t, enum max22200_scale)
	Set channel's scale to fullscale or half fullscale.
int	max22200_set_ch_trig (struct max22200_desc *, uint32_t, enum max22200_trig)
	Set channel's trigger to be either SPI or external trigger.
int	max22200_set_ch_mode (struct max22200_desc *, uint32_t, enum max22200_ch_drive, enum max22200_ch_side, enum max22200_ch_op_mode)
	Set chanmel operation mode, high-side/low-side and drive.
int	max22200_set_ch_freq (struct max22200_desc *, uint32_t, enum max22200_ch_freq)
	Set channel's frequency.
int	max22200_set_ch_enable (struct max22200_desc *, uint32_t, enum max22200_ch_enable, bool)
	Set channel's enables for different checks, detection and functions.
int	max22200_set_cfg_dpm (struct max22200_desc *, uint8_t, uint8_t)
	Set configuration DPM.
int	max22200_fault_mask_get (struct max22200_desc *, enum max22200_fault_mask, bool *)
	Fault mask bit get function.
int	max22200_get_ch_state (struct max22200_desc *, uint32_t, bool *)
	Read the state of a channel.
int	max22200_get_chop_freq (struct max22200_desc *, enum max22200_chopping_freq *)
	Read chopping frequency.
int	max22200_get_ch_hit (struct max22200_desc *, uint32_t, uint8_t *, uint8_t *)
	Read channel HIT configuration.
int	max22200_get_ch_hold (struct max22200_desc *, uint32_t, uint8_t *)
	Read channel HOLD configuration.
int	max22200_get_ch_scale (struct max22200_desc *, uint32_t, enum max22200_scale *)
	Read channel's scale.
int	max22200_get_ch_trig (struct max22200_desc *, uint32_t, enum max22200_trig *)
	Read channel's selected trigger for specific channel.
int	max22200_get_ch_mode (struct max22200_desc *, uint32_t, enum max22200_ch_drive *, enum max22200_ch_side *, enum max22200_ch_op_mode *)
	Read channel's mode configuration.
int	max22200_get_ch_freq (struct max22200_desc *, uint32_t, enum max22200_ch_freq *)
	Read channel's frequency.
int	max22200_get_ch_enable (struct max22200_desc *, uint32_t, enum max22200_ch_enable, bool *)
	Read channel's enable bits state.
int	max22200_get_cfg_dpm (struct max22200_desc *, uint8_t *, uint8_t *)
	Read configuration for the detection of the plunger movement of the device.
int	max22200_init (struct max22200_desc **, struct max22200_init_param *)
	MAX22200 descriptor initialization function.
int	max22200_remove (struct max22200_desc *)
	Deallocates all the resources used at initialization.

Detailed Description

Header file of MAX22200 Driver.

Author

Radu Sabau (radu..nosp@m.saba.nosp@m.u@ana.nosp@m.log..nosp@m.com)

Copyright 2023(c) Analog Devices, Inc.

SPDX-License-Identifier: BSD-3-Clause

Macro Definition Documentation

MAX22200_ACTIVE_MASK

#define MAX22200_ACTIVE_MASK   NO_OS_BIT(0)

MAX22200_ADDR_MASK

#define MAX22200_ADDR_MASK   NO_OS_GENMASK(6, 0)

MAX22200_CFG_CH

#define MAX22200_CFG_CH

(

x

)

Value:

(0x01 + (0x01 * (x)))

MAX22200_CFG_DPM_REG

#define MAX22200_CFG_DPM_REG   0x0A

MAX22200_CH_ENABLE_MASK

#define MAX22200_CH_ENABLE_MASK

(

x

)

Value:

NO_OS_BIT(x)

MAX22200_CH_MODE_MASK

#define MAX22200_CH_MODE_MASK

(

x

)

Value:

NO_OS_GENMASK(8 + (2 * (x)), 9 + (2 * (x)))

MAX22200_CHANNELS

#define MAX22200_CHANNELS   8

MAX22200_CHANNELS_CONFIG

#define MAX22200_CHANNELS_CONFIG   4

MAX22200_DPM_IPTH_MASK

#define MAX22200_DPM_IPTH_MASK   NO_OS_GENMASK(3, 0)

MAX22200_DPM_ISTART_MASK

#define MAX22200_DPM_ISTART_MASK   NO_OS_GENMASK(14, 8)

MAX22200_DPM_TDEB_MASK

#define MAX22200_DPM_TDEB_MASK   NO_OS_GENMASK(7, 4)

MAX22200_FAULT_REG

#define MAX22200_FAULT_REG   0x09

MAX22200_FRAME_SIZE

#define MAX22200_FRAME_SIZE   4

MAX22200_FREQ_CFG_MASK

#define MAX22200_FREQ_CFG_MASK   NO_OS_GENMASK(5, 4)

MAX22200_HFS_MASK

#define MAX22200_HFS_MASK   NO_OS_BIT(31)

MAX22200_HIT_MASK

#define MAX22200_HIT_MASK   NO_OS_GENMASK(22, 16)

MAX22200_HIT_MAX_VAL

#define MAX22200_HIT_MAX_VAL   0x7F

MAX22200_HIT_NO_TIME

#define MAX22200_HIT_NO_TIME   0x00

MAX22200_HIT_T_MASK

#define MAX22200_HIT_T_MASK   NO_OS_GENMASK(15, 8)

MAX22200_HOLD_MASK

#define MAX22200_HOLD_MASK   NO_OS_GENMASK(30, 24)

MAX22200_HSNLS_MASK

#define MAX22200_HSNLS_MASK   NO_OS_BIT(6)

MAX22200_MAX_CHN_IDX

#define MAX22200_MAX_CHN_IDX   7

MAX22200_ONCH_MASK

#define MAX22200_ONCH_MASK

(

x

)

Value:

NO_OS_BIT((x) + 24)

MAX22200_R1B

#define MAX22200_R1B   NO_OS_BIT(0)

MAX22200_RW_MASK

#define MAX22200_RW_MASK   NO_OS_BIT(7)

MAX22200_STATUS_FAULT_MASK

#define MAX22200_STATUS_FAULT_MASK

(

x

)

Value:

NO_OS_BIT(x)

MAX22200_STATUS_FLAG_MASK

#define MAX22200_STATUS_FLAG_MASK   NO_OS_GENMASK(7, 0)

MAX22200_STATUS_FREQ_MASK

#define MAX22200_STATUS_FREQ_MASK   NO_OS_BIT(16)

MAX22200_STATUS_MODE_MASK

#define MAX22200_STATUS_MODE_MASK   NO_OS_GENMASK(15, 8)

MAX22200_STATUS_ONCH_MASK

#define MAX22200_STATUS_ONCH_MASK   NO_OS_GENMASK(31, 24)

MAX22200_STATUS_REG

#define MAX22200_STATUS_REG   0x00

MAX22200_TRGNSP_IO_MASK

#define MAX22200_TRGNSP_IO_MASK   NO_OS_BIT(23)

MAX22200_VDRNCDR_MASK

#define MAX22200_VDRNCDR_MASK   NO_OS_BIT(7)

Enumeration Type Documentation

max22200_ch_drive

enum max22200_ch_drive

Enumerator
MAX22200_CURRENT_DRIVE
MAX22200_VOLTAGE_DRIVE

max22200_ch_enable

enum max22200_ch_enable

Enumerator
MAX22200_HHF_ENABLE
MAX22200_DPM_ENABLE
MAX22200_OL_ENABLE
MAX22200_SRC

max22200_ch_freq

enum max22200_ch_freq

Enumerator
MAX22200_FREQMAIN_DIV_4
MAX22200_FREQMAIN_DIV_3
MAX22200_FREQMAIN_DIV_2
MAX22200_FREQMAIN

max22200_ch_op_mode

enum max22200_ch_op_mode

Enumerator
MAX22200_INDEPENDENT_MODE
MAX22200_PARALLEL_MODE
MAX22200_HALF_BRIDGE_MODE

max22200_ch_side

enum max22200_ch_side

Enumerator
MAX22200_LOW_SIDE
MAX22200_HIGH_SIDE

max22200_chopping_freq

enum max22200_chopping_freq

Enumerator
MAX22200_FREQ_100KHZ
MAX22200_FREQ_80KHZ

max22200_fault_mask

enum max22200_fault_mask

Enumerator
MAX22200_M_UVM
MAX22200_M_COMF
MAX22200_M_DPM
MAX22200_M_HHF
MAX22200_M_OLF
MAX22200_M_OCP
MAX22200_M_OVT

max22200_scale

enum max22200_scale

Enumerator
MAX22200_FULLSCALE
MAX22200_HALF_FULL_SCALE

max22200_trig

enum max22200_trig

Enumerator
MAX22200_ONCH_SPI
MAX22200_TRIG

Function Documentation

max22200_fault_mask_get()

int max22200_fault_mask_get	(	struct max22200_desc *	desc,
		enum max22200_fault_mask	fault_mask,
		bool *	enabled )

Fault mask bit get function.

Fault mask bit get function

Parameters

desc	- MAX22200 device descriptor.
fault_mask	- Fault mask specific bit to read the state for.
enabled	- State of the bit.

Returns

0 in case of succes, negative error code otherwise.

max22200_fault_mask_set()

int max22200_fault_mask_set	(	struct max22200_desc *	desc,
		enum max22200_fault_mask	fault_mask,
		bool	enabled )

Set fault mask bits in the status register.

Set fault mask bits in the status register.

Parameters

desc	- MAX22200 device descriptor.
fault_mask	- Desired fault mask bit to set.
enabled	- enabled/disabled state of the mask.

Returns

0 in case of succes, negative error code otherwise.

max22200_get_cfg_dpm()

int max22200_get_cfg_dpm	(	struct max22200_desc *	desc,
		uint8_t *	dpm_istart_byte,
		uint8_t *	dpm_tdeb_ipth_byte )

Read configuration for the detection of the plunger movement of the device.

Read configuration for the detection of the plunger movement of the device.

Parameters

desc	- MAX22200 device descriptor.
dpm_istart_byte	- Detection of plunger movement starting current value.
dpm_tdeb_ipth_byte	- Detection of plunger movement debounce time value.

Returns

0 in case of succes, negative error code otherwise.

max22200_get_ch_enable()

int max22200_get_ch_enable	(	struct max22200_desc *	desc,
		uint32_t	ch,
		enum max22200_ch_enable	ch_enable,
		bool *	enabled )

Read channel's enable bits state.

Read channel's enable bits state.

Parameters

desc	- MAX22200 device descriptor.
ch	- Channel's number (0 based).
ch_enable	- Requested channel enable bit to read the state for.
enabled	- Requested enabled bit state.

Returns

0 in case of succes, negative error code otherwise.

max22200_get_ch_freq()

int max22200_get_ch_freq	(	struct max22200_desc *	desc,
		uint32_t	ch,
		enum max22200_ch_freq *	ch_freq )

Read channel's frequency.

Read channel's frequency.

Parameters

desc	- MAX22200 device descriptor.
ch	- Channel's number (0 based).
ch_freq	- Channel's frequency value read from the device.

Returns

0 in case of succes, negative error code otherwise.

max22200_get_ch_hit()

int max22200_get_ch_hit	(	struct max22200_desc *	desc,
		uint32_t	ch,
		uint8_t *	hit_current,
		uint8_t *	hit_time )

Read channel HIT configuration.

Read channel HIT configuration.

Parameters

desc	- MAX22200 device descriptor.
ch	- Channel's number (0 based).
hit_current	- HIT current value read from the device.
hit_time	- HIT time value read from the device.

Returns

0 in case of succes, negative error code otherwise.

max22200_get_ch_hold()

int max22200_get_ch_hold	(	struct max22200_desc *	desc,
		uint32_t	ch,
		uint8_t *	hold_current )

Read channel HOLD configuration.

Read channel HOLD configuration.

Parameters

desc	- MAX22200 device descriptor.
ch	- Channel's number (0 based).
hold_current	- HOLD current value read from the device.

Returns

0 in case of succes, negative error code otherwise.

max22200_get_ch_mode()

int max22200_get_ch_mode	(	struct max22200_desc *	desc,
		uint32_t	ch,
		enum max22200_ch_drive *	ch_drive,
		enum max22200_ch_side *	ch_side,
		enum max22200_ch_op_mode *	ch_op_mode )

Read channel's mode configuration.

Read channel's mode configuration.

Parameters

desc	- MAX22200 device descriptor.
ch	- Channel's number (0 based).
ch_drive	- Channel's drive read from the device.
ch_side	- Channel's high-side/low-side configuraton read from the device.
ch_op_mode	- Channel's operation mode read from the device.

Returns

0 in case of succes, negative error code otherwise.

max22200_get_ch_scale()

int max22200_get_ch_scale	(	struct max22200_desc *	desc,
		uint32_t	ch,
		enum max22200_scale *	scale )

Read channel's scale.

Read channel's scale.

Parameters

desc	- MAX22200 device descriptor.
ch	- Channel's number (0 based).
scale	- Scale read from device's channel.

Returns

0 in case of succes, negative error code otherwise.

max22200_get_ch_state()

int max22200_get_ch_state	(	struct max22200_desc *	desc,
		uint32_t	ch,
		bool *	ch_state )

Read the state of a channel.

Get the state of a specific channel.

Parameters

desc	- MAX22200 device descriptor
ch	- Channel number (0 based).
ch_state	- State of the channel.

Returns

0 in case of succes, negative error code otherwise.

max22200_get_ch_trig()

int max22200_get_ch_trig	(	struct max22200_desc *	desc,
		uint32_t	ch,
		enum max22200_trig *	trig )

Read channel's selected trigger for specific channel.

Read channel's selected trigger for specific channel.

Parameters

desc	- MAX22200 device descriptor.
ch	- Channel's number (0 based).
trig	- Selected trigger for the channel requested read from the device.

Returns

0 in case of succes, negative error code otherwise.

max22200_get_chop_freq()

int max22200_get_chop_freq	(	struct max22200_desc *	desc,
		enum max22200_chopping_freq *	chopping_freq )

Read chopping frequency.

Read device frequency

Parameters

desc	- MAX22200 device descriptor.
chopping_freq	- Pointer of the variable holding the value of the chopping frequency.

Returns

0 in case of succes, negative error code otherwise.

max22200_init()

int max22200_init	(	struct max22200_desc **	desc,
		struct max22200_init_param *	init_param )

MAX22200 descriptor initialization function.

MAX22200 device initialization function.

Parameters

desc	- MAX22200 device descriptor.
init_param	- Initialization parameter containing data about the device descriptor to be initialized.

Returns

0 in case of succes, negative error code otherwise.

max22200_reg_read()

int max22200_reg_read	(	struct max22200_desc *	desc,
		uint32_t	reg,
		uint32_t *	val )

Read data from desired register for MAX22200.

Read data from desired register for MAX22200.

Parameters

desc	- MAX22200 device descriptor.
reg	- Register address to read data from.
val	- Value read from the register.

Returns

0 in case of succes, negative error code otherwise.

max22200_reg_update()

int max22200_reg_update	(	struct max22200_desc *	desc,
		uint32_t	reg,
		uint32_t	mask,
		uint32_t	val )

Update data in the desired register.

Update data in the desired register.

Parameters

desc	- MAX22200 device descriptor.
reg	- Register address to update data to.
mask	- Bit mask of the field to be updated.
val	- Value to be updated in the desired register. Should be bit shifted by using no_os_field_prep(mask, val)

Returns

0 in case of succes, negative error code otherwise.

max22200_reg_write()

int max22200_reg_write	(	struct max22200_desc *	desc,
		uint32_t	reg,
		uint32_t	val )

Write data to desired register for MAX22200.

Write data to desired register for MAX22200

Parameters

desc	- MAXX22200 device descriptor.
reg	- Register address to write data to.
val	- Value to be written to the register.

Returns

0 in case of succes, negative error code otherwise.

max22200_remove()

int max22200_remove

(

struct max22200_desc *

desc

)

Deallocates all the resources used at initialization.

Deallocates all the resources used at initialization.

Parameters

desc	- MAX22200 device descriptor.

Returns

0 in case of succes, negative error code otherwise.

max22200_set_cfg_dpm()

int max22200_set_cfg_dpm	(	struct max22200_desc *	desc,
		uint8_t	dpm_istart_byte,
		uint8_t	dpm_tdeb_ipth_byte )

Set configuration DPM.

Set configuration DPM.

Parameters

desc	- MAX22200 device descriptor.
dpm_istart_byte	- Detection of plunger movement starting current
dpm_tdeb_ipth_byte	- Detection of plunger movement debounce time.

Returns

0 in case of succes, negative error code otherwise.

max22200_set_ch_enable()

int max22200_set_ch_enable	(	struct max22200_desc *	desc,
		uint32_t	ch,
		enum max22200_ch_enable	ch_enable,
		bool	enabled )

Set channel's enables for different checks, detection and functions.

Set channel's enables for different checks, detection and functions.

Parameters

desc	- MAX22200 device descriptor.
ch	- Channel's number (0 based).
ch_enable	- Channel enable to be set.
enabled	- Disabled/Enabled state.

Returns

0 in case of succes, negative error code otherwise.

max22200_set_ch_freq()

int max22200_set_ch_freq	(	struct max22200_desc *	desc,
		uint32_t	ch,
		enum max22200_ch_freq	ch_freq )

Set channel's frequency.

Set channel's frequency.

Parameters

desc	- MAX22200 device descriptor
ch	- Channel's number (0 based).
ch_freq	- 80KHz/100KHz frequency.

Returns

0 in case of succes, negative error code otherwise.

max22200_set_ch_hit()

int max22200_set_ch_hit	(	struct max22200_desc *	desc,
		uint32_t	ch,
		uint8_t	hit_current,
		uint8_t	hit_time )

Set channel HIT time and HIT current.

Set channel HIT time and HIT current.

Parameters

desc	- MAX22200 device descriptor.
ch	- Channel for which HIT time is to be set.(0 based)
hit_current	- HIT current value, it shall not be greater than 127 since the value is stored only on 7 bits in the channel's configuration register.
hit_time	- HIT time value to be set.

Returns

0 in case of succes, negative error code otherwise.

max22200_set_ch_hold()

int max22200_set_ch_hold	(	struct max22200_desc *	desc,
		uint32_t	ch,
		uint8_t	hold_current )

Set channel hold current.

Set channel hold current.

Parameters

desc	- MAX22200 device descriptor.
ch	- Channel's number (0 based).
hold_current	- Hold current value to be set. It shall not be greater than 127 since the value it's stored on 7 bits in the channel's configuration register.

Returns

0 in case of succes, negative error code otherwise.

max22200_set_ch_mode()

int max22200_set_ch_mode	(	struct max22200_desc *	desc,
		uint32_t	ch,
		enum max22200_ch_drive	ch_drive,
		enum max22200_ch_side	ch_side,
		enum max22200_ch_op_mode	ch_op_mode )

Set chanmel operation mode, high-side/low-side and drive.

Set chanmel operation mode, high-side/low-side and drive.

Parameters

desc	- MAX22200 device descriptor.
ch	- Channel number (0 based).
ch_drive	- Voltage/Current drive.
ch_side	- High-Side/Low-Side.
ch_op_mode	- Independent/Half-Bridge/Full-Bridge mode.

Returns

0 in case of succes, negative error code otherwise.

max22200_set_ch_scale()

int max22200_set_ch_scale	(	struct max22200_desc *	desc,
		uint32_t	ch,
		enum max22200_scale	scale )

Set channel's scale to fullscale or half fullscale.

Set channel's scale to fullscale or half fullscale.

Parameters

desc	- MAX22200 device dscriptor.
ch	- Channel's number (0 based).
scale	- Scale value.

Returns

0 in case of succes, negative error code otherwise.

max22200_set_ch_state()

int max22200_set_ch_state	(	struct max22200_desc *	desc,
		uint32_t	ch,
		bool	ch_state )

Set channel state for specific channel.

Set channel state for specific channel.

Parameters

desc	- MAX22200 device descriptor.
ch	- Channel number.
ch_state	- Channel's state to be changed into.

Returns

0 in case of succces, negative error code otherwise.

max22200_set_ch_trig()

int max22200_set_ch_trig	(	struct max22200_desc *	desc,
		uint32_t	ch,
		enum max22200_trig	trig )

Set channel's trigger to be either SPI or external trigger.

Set channel's trigger to be either SPI or external trigger.

Parameters

desc	- MAX22200 device descriptor.
ch	- Channel's number (0 based).
trig	- Trigger to be set. If external trigger is requested but no external's trigger descriptor was initialized, will return negative error code.

Returns

0 in case of succes, negative error code otherwise.

max22200_set_chop_freq()

int max22200_set_chop_freq	(	struct max22200_desc *	desc,
		enum max22200_chopping_freq	chopping_freq )

Set chopping frequency value.

Set device frequency value.

Parameters

desc	- MAX22200 device descriptor.
chopping_freq	- Chopping frequency value.

Returns

0 in case of succes, negative error code otherwise.

max22200_set_trig_state()

int max22200_set_trig_state	(	struct max22200_desc *	desc,
		bool	trig_state )

Set external trigger's state of the MAX22200.

Set external trigger's state of the MAX22200.

Parameters

desc	- MAX22200 device descriptor.
trig_state	- State to change to.

Returns

0 in case of succes, negative error code otherwise.