adgm3121.c File Reference

Implementation of ADGM3121 Driver. More...

#include <stdlib.h>
#include "no_os_error.h"
#include "no_os_alloc.h"
#include "no_os_delay.h"
#include "no_os_util.h"
#include "adgm3121.h"

Include dependency graph for adgm3121.c:

Functions
int	adgm3121_write_register (struct adgm3121_dev *dev, uint8_t reg_addr, uint8_t data)
	Write to device register via SPI.
int	adgm3121_read_register (struct adgm3121_dev *dev, uint8_t reg_addr, uint8_t *data)
	Read from device register via SPI.
int	adgm3121_set_switch_state (struct adgm3121_dev *dev, enum adgm3121_switch sw, enum adgm3121_state state)
	Set the state of a specific switch.
int	adgm3121_get_switch_state (struct adgm3121_dev *dev, enum adgm3121_switch sw, enum adgm3121_state *state)
	Get the current state of a specific switch.
int	adgm3121_set_switches (struct adgm3121_dev *dev, uint8_t switch_mask)
	Set multiple switches at once using bitmask.
int	adgm3121_get_switches (struct adgm3121_dev *dev, uint8_t *switch_mask)
	Get all switch states as bitmask.
int	adgm3121_reset_switches (struct adgm3121_dev *dev)
	Reset all switches to off state.
int	adgm3121_enter_daisy_chain_mode (struct adgm3121_dev *dev)
	Enter SPI daisy chain mode.
int	adgm3121_check_internal_error (struct adgm3121_dev *dev, uint8_t *error_status)
	Check for internal errors.
int	adgm3121_init (struct adgm3121_dev **device, struct adgm3121_init_param *init_param)
	Initialize the device.
int	adgm3121_remove (struct adgm3121_dev *dev)
	Free resources allocated by adgm3121_init()

Detailed Description

Implementation of ADGM3121 Driver.

Author

Antoniu Miclaus (anton.nosp@m.iu.m.nosp@m.iclau.nosp@m.s@an.nosp@m.alog..nosp@m.com)

Copyright 2025(c) Analog Devices, Inc.

SPDX-License-Identifier: BSD-3-Clause

Function Documentation

adgm3121_check_internal_error()

int adgm3121_check_internal_error	(	struct adgm3121_dev *	dev,
		uint8_t *	error_status )

Check for internal errors.

Parameters

dev	- The device structure
error_status	- Pointer to store error status (bits 7:6)

Returns

0 in case of success, negative error code otherwise

adgm3121_enter_daisy_chain_mode()

int adgm3121_enter_daisy_chain_mode

(

struct adgm3121_dev *

dev

)

Enter SPI daisy chain mode.

Parameters

dev	- The device structure

Returns

0 in case of success, negative error code otherwise

adgm3121_get_switch_state()

int adgm3121_get_switch_state	(	struct adgm3121_dev *	dev,
		enum adgm3121_switch	sw,
		enum adgm3121_state *	state )

Get the current state of a specific switch.

Parameters

dev	- The device structure
sw	- The switch to read (SW1 to SW4)
state	- Pointer to store the current state

Returns

0 in case of success, negative error code otherwise

adgm3121_get_switches()

int adgm3121_get_switches	(	struct adgm3121_dev *	dev,
		uint8_t *	switch_mask )

Get all switch states as bitmask.

Parameters

dev	- The device structure
switch_mask	- Pointer to store switch states bitmask

Returns

0 in case of success, negative error code otherwise

adgm3121_init()

int adgm3121_init	(	struct adgm3121_dev **	device,
		struct adgm3121_init_param *	init_param )

Initialize the device.

Parameters

device	- Pointer to the device structure pointer
init_param	- Pointer to the initialization parameters

Returns

0 in case of success, negative error code otherwise

adgm3121_read_register()

int adgm3121_read_register	(	struct adgm3121_dev *	dev,
		uint8_t	reg_addr,
		uint8_t *	data )

Read from device register via SPI.

Parameters

dev	- The device structure
reg_addr	- Register address
data	- Pointer to store read data

Returns

0 in case of success, negative error code otherwise

adgm3121_remove()

int adgm3121_remove

(

struct adgm3121_dev *

dev

)

Free resources allocated by adgm3121_init()

Parameters

dev	- The device structure

Returns

0 in case of success, negative error code otherwise

adgm3121_reset_switches()

int adgm3121_reset_switches

(

struct adgm3121_dev *

dev

)

Reset all switches to off state.

Parameters

dev	- The device structure

Returns

0 in case of success, negative error code otherwise

adgm3121_set_switch_state()

int adgm3121_set_switch_state	(	struct adgm3121_dev *	dev,
		enum adgm3121_switch	sw,
		enum adgm3121_state	state )

Set the state of a specific switch.

Parameters

dev	- The device structure
sw	- The switch to control (SW1 to SW4)
state	- The desired state (ADGM3121_ENABLE or ADGM3121_DISABLE)

Returns

0 in case of success, negative error code otherwise

adgm3121_set_switches()

int adgm3121_set_switches	(	struct adgm3121_dev *	dev,
		uint8_t	switch_mask )

Set multiple switches at once using bitmask.

Parameters

dev	- The device structure
switch_mask	- Bitmask of switches to enable (bits 0-3)

Returns

0 in case of success, negative error code otherwise

adgm3121_write_register()

int adgm3121_write_register	(	struct adgm3121_dev *	dev,
		uint8_t	reg_addr,
		uint8_t	data )

Write to device register via SPI.

Parameters

dev	- The device structure
reg_addr	- Register address
data	- Data to write

Returns

0 in case of success, negative error code otherwise