adc_demo.c File Reference

Implementation of ADC Demo Driver. More...

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

Include dependency graph for adc_demo.c:

Functions
int32_t	adc_demo_init (struct adc_demo_desc **desc, struct adc_demo_init_param *param)
	init function for the adc demo driver
int32_t	adc_demo_remove (struct adc_demo_desc *desc)
	free allocated resources
int	update_adc_channels (void *dev, uint32_t mask)
	active adc channels
int	close_adc_channels (void *dev)
	close all channels
int32_t	adc_demo_reg_read (struct adc_demo_desc *desc, uint8_t reg_index, uint8_t *readval)
	read function for the adc demo driver
int32_t	adc_demo_reg_write (struct adc_demo_desc *desc, uint8_t reg_index, uint8_t writeval)
	write function for the adc demo driver

Variables
const uint16_t	sine_lut [128]

Detailed Description

Implementation of ADC 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

adc_demo_init()

int32_t adc_demo_init	(	struct adc_demo_desc **	desc,
		struct adc_demo_init_param *	param )

init function for the adc demo driver

Parameters

desc	- descriptor for the adc
param	- initialization param for adc

Returns

0 in case of success, negative error code otherwise.

adc_demo_reg_read()

int32_t adc_demo_reg_read	(	struct adc_demo_desc *	desc,
		uint8_t	reg_index,
		uint8_t *	readval )

read function for the adc demo driver

Parameters

desc	- descriptor for the adc
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.

adc_demo_reg_write()

int32_t adc_demo_reg_write	(	struct adc_demo_desc *	desc,
		uint8_t	reg_index,
		uint8_t	writeval )

write function for the adc demo driver

Parameters

desc	- descriptor for the adc
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.

adc_demo_remove()

int32_t adc_demo_remove

(

struct adc_demo_desc *

desc

)

free allocated resources

Parameters

desc	- descriptor for the adc

Returns

0 in case of success, -1 otherwise.

close_adc_channels()

int close_adc_channels

(

void *

dev

)

close all channels

Parameters

dev	- physical instance of an adc device

Returns

0 in case of success.

update_adc_channels()

int update_adc_channels	(	void *	dev,
		uint32_t	mask )

active adc channels

Parameters

dev	- descriptor for the adc
mask	- active channels mask

Returns

0 in case of success, -1 otherwise.

Variable Documentation

sine_lut

const uint16_t sine_lut[128]

Initial value:

= {
    0x0000, 0x0064, 0x00C8, 0x012C, 0x018F, 0x01F1, 0x0252, 0x02B1,
    0x030F, 0x036B, 0x03C5, 0x041C, 0x0471, 0x04C3, 0x0512, 0x055F,
    0x05A7, 0x05ED, 0x062E, 0x066C, 0x06A6, 0x06DC, 0x070D, 0x073A,
    0x0763, 0x0787, 0x07A7, 0x07C2, 0x07D8, 0x07E9, 0x07F5, 0x07FD,
    0x07FF, 0x07FD, 0x07F5, 0x07E9, 0x07D8, 0x07C2, 0x07A7, 0x0787,
    0x0763, 0x073A, 0x070D, 0x06DC, 0x06A6, 0x066C, 0x062E, 0x05ED,
    0x05A7, 0x055F, 0x0512, 0x04C3, 0x0471, 0x041C, 0x03C5, 0x036B,
    0x030F, 0x02B1, 0x0252, 0x01F1, 0x018F, 0x012C, 0x00C8, 0x0064,
    0x0000, 0xFF9B, 0xFF37, 0xFED3, 0xFE70, 0xFE0E, 0xFDAD, 0xFD4E,
    0xFCF0, 0xFC94, 0xFC3A, 0xFBE3, 0xFB8E, 0xFB3C, 0xFAED, 0xFAA0,
    0xFA58, 0xFA12, 0xF9D1, 0xF993, 0xF959, 0xF923, 0xF8F2, 0xF8C5,
    0xF89C, 0xF878, 0xF858, 0xF83D, 0xF827, 0xF816, 0xF80A, 0xF802,
    0xF800, 0xF802, 0xF80A, 0xF816, 0xF827, 0xF83D, 0xF858, 0xF878,
    0xF89C, 0xF8C5, 0xF8F2, 0xF923, 0xF959, 0xF993, 0xF9D1, 0xFA12,
    0xFA58, 0xFAA0, 0xFAED, 0xFB3C, 0xFB8E, 0xFBE3, 0xFC3A, 0xFC94,
    0xFCF0, 0xFD4E, 0xFDAD, 0xFE0E, 0xFE70, 0xFED3, 0xFF37, 0xFF9B
}