dac_demo.c File Reference

Implementation of DAC Demo Driver. More...

#include <stdio.h>
#include <string.h>
#include "dac_demo.h"
#include "no_os_error.h"
#include "no_os_util.h"
#include "no_os_alloc.h"

Include dependency graph for dac_demo.c:

Functions
int32_t	dac_demo_init (struct dac_demo_desc **desc, struct dac_demo_init_param *param)
	init function for the dac demo driver
int32_t	dac_demo_remove (struct dac_demo_desc *desc)
	free allocated resources
int	update_dac_channels (void *dev, int32_t mask)
	update number of active channels
int	close_dac_channels (void *dev)
	close all channels
int32_t	dac_demo_reg_read (struct dac_demo_desc *desc, uint8_t reg_index, uint8_t *readval)
	read function for the dac demo driver
int32_t	dac_demo_reg_write (struct dac_demo_desc *desc, uint8_t reg_index, uint8_t writeval)
	write function for the dac demo driver

Detailed Description

Implementation of DAC Demo Driver.

Author

RNechita (ramon.nosp@m.a.ne.nosp@m.chita.nosp@m.@ana.nosp@m.log.c.nosp@m.om)

Copyright 2021(c) Analog Devices, Inc.

SPDX-License-Identifier: BSD-3-Clause

Function Documentation

close_dac_channels()

int close_dac_channels

(

void *

dev

)

close all channels

Parameters

dev	- physical instance of an adc device

Returns

0 in case of success.

dac_demo_init()

int32_t dac_demo_init	(	struct dac_demo_desc **	desc,
		struct dac_demo_init_param *	param )

init function for the dac demo driver

Parameters

desc	- descriptor for the dac
param	- initialization param for dac

Returns

0 in case of success, negative error code otherwise.

dac_demo_reg_read()

int32_t dac_demo_reg_read	(	struct dac_demo_desc *	desc,
		uint8_t	reg_index,
		uint8_t *	readval )

read function for the dac demo driver

Parameters

desc	- descriptor for the dac
reg_index	- the address at which we want to read
readval-	the value read from register

Returns

0 in case of success, negative error code otherwise.

dac_demo_reg_write()

int32_t dac_demo_reg_write	(	struct dac_demo_desc *	desc,
		uint8_t	reg_index,
		uint8_t	writeval )

write function for the dac demo driver

Parameters

desc	- descriptor for the dac
reg_index	- the address at which we want to write
writeval	- the value to be written

Returns

0 in case of success, negative error code otherwise.

dac_demo_remove()

int32_t dac_demo_remove

(

struct dac_demo_desc *

desc

)

free allocated resources

Parameters

desc	- descriptor for the dac to be removed

Returns

0 in case of success, -1 otherwise.

update_dac_channels()

int update_dac_channels	(	void *	dev,
		int32_t	mask )

update number of active channels

Parameters

dev	- physical instance of a dac device
mask	- the new number of active channels

Returns

0 in case of success.