Analog Devices / Mbed OS EVAL-AD7689

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Dependencies:   sdp_k1_sdram

app/app_config.c@2:007533849deb, 2022-07-21 (annotated)

Committer:
Mahesh Phalke
Date:
Thu Jul 21 16:45:24 2022 +0530
Revision:
2:007533849deb
Initial firmware commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Mahesh Phalke 2:007533849deb 1 /***************************************************************************//**
Mahesh Phalke 2:007533849deb 2 * @file app_config.c
Mahesh Phalke 2:007533849deb 3 * @brief Application configurations module (platform-agnostic)
Mahesh Phalke 2:007533849deb 4 * @details This module performs the system configurations
Mahesh Phalke 2:007533849deb 5 ********************************************************************************
Mahesh Phalke 2:007533849deb 6 * Copyright (c) 2021-22 Analog Devices, Inc.
Mahesh Phalke 2:007533849deb 7 * All rights reserved.
Mahesh Phalke 2:007533849deb 8 *
Mahesh Phalke 2:007533849deb 9 * This software is proprietary to Analog Devices, Inc. and its licensors.
Mahesh Phalke 2:007533849deb 10 * By using this software you agree to the terms of the associated
Mahesh Phalke 2:007533849deb 11 * Analog Devices Software License Agreement.
Mahesh Phalke 2:007533849deb 12 *******************************************************************************/
Mahesh Phalke 2:007533849deb 13
Mahesh Phalke 2:007533849deb 14 /******************************************************************************/
Mahesh Phalke 2:007533849deb 15 /***************************** Include Files **********************************/
Mahesh Phalke 2:007533849deb 16 /******************************************************************************/
Mahesh Phalke 2:007533849deb 17
Mahesh Phalke 2:007533849deb 18 #include <stdbool.h>
Mahesh Phalke 2:007533849deb 19
Mahesh Phalke 2:007533849deb 20 #include "app_config.h"
Mahesh Phalke 2:007533849deb 21 #include "ad7689_data_capture.h"
Mahesh Phalke 2:007533849deb 22 #include "no_os_error.h"
Mahesh Phalke 2:007533849deb 23 #include "no_os_uart.h"
Mahesh Phalke 2:007533849deb 24 #include "no_os_gpio.h"
Mahesh Phalke 2:007533849deb 25 #include "no_os_irq.h"
Mahesh Phalke 2:007533849deb 26 #include "no_os_pwm.h"
Mahesh Phalke 2:007533849deb 27
Mahesh Phalke 2:007533849deb 28 /******************************************************************************/
Mahesh Phalke 2:007533849deb 29 /************************ Macros/Constants ************************************/
Mahesh Phalke 2:007533849deb 30 /******************************************************************************/
Mahesh Phalke 2:007533849deb 31
Mahesh Phalke 2:007533849deb 32 /******************************************************************************/
Mahesh Phalke 2:007533849deb 33 /******************** Variables and User Defined Data Types *******************/
Mahesh Phalke 2:007533849deb 34 /******************************************************************************/
Mahesh Phalke 2:007533849deb 35
Mahesh Phalke 2:007533849deb 36 /* UART init parameters */
Mahesh Phalke 2:007533849deb 37 static struct no_os_uart_init_param uart_init_params = {
Mahesh Phalke 2:007533849deb 38 .device_id = NULL,
Mahesh Phalke 2:007533849deb 39 .baud_rate = IIO_UART_BAUD_RATE,
Mahesh Phalke 2:007533849deb 40 .size = NO_OS_UART_CS_8,
Mahesh Phalke 2:007533849deb 41 .parity = NO_OS_UART_PAR_NO,
Mahesh Phalke 2:007533849deb 42 .stop = NO_OS_UART_STOP_1_BIT,
Mahesh Phalke 2:007533849deb 43 .extra = &uart_extra_init_params
Mahesh Phalke 2:007533849deb 44 };
Mahesh Phalke 2:007533849deb 45
Mahesh Phalke 2:007533849deb 46 /* LED GPO init parameters */
Mahesh Phalke 2:007533849deb 47 static struct no_os_gpio_init_param led_gpio_init_params = {
Mahesh Phalke 2:007533849deb 48 .number = LED_GPO,
Mahesh Phalke 2:007533849deb 49 .platform_ops = &gpio_ops,
Mahesh Phalke 2:007533849deb 50 .extra = NULL
Mahesh Phalke 2:007533849deb 51 };
Mahesh Phalke 2:007533849deb 52
Mahesh Phalke 2:007533849deb 53 /* External interrupt init parameters */
Mahesh Phalke 2:007533849deb 54 static struct no_os_irq_init_param ext_int_init_params = {
Mahesh Phalke 2:007533849deb 55 .irq_ctrl_id = 0,
Mahesh Phalke 2:007533849deb 56 .platform_ops = &irq_ops,
Mahesh Phalke 2:007533849deb 57 .extra = &ext_int_extra_init_params
Mahesh Phalke 2:007533849deb 58 };
Mahesh Phalke 2:007533849deb 59
Mahesh Phalke 2:007533849deb 60 /* External interrupt callback descriptor */
Mahesh Phalke 2:007533849deb 61 static struct no_os_callback_desc ext_int_callback_desc = {
Mahesh Phalke 2:007533849deb 62 data_capture_callback,
Mahesh Phalke 2:007533849deb 63 NULL,
Mahesh Phalke 2:007533849deb 64 NULL
Mahesh Phalke 2:007533849deb 65 };
Mahesh Phalke 2:007533849deb 66
Mahesh Phalke 2:007533849deb 67 /* PWM init parameters */
Mahesh Phalke 2:007533849deb 68 static struct no_os_pwm_init_param pwm_init_params = {
Mahesh Phalke 2:007533849deb 69 .id = 0,
Mahesh Phalke 2:007533849deb 70 .period_ns = CONV_TRIGGER_PERIOD_NSEC, // PWM period in nsec
Mahesh Phalke 2:007533849deb 71 .duty_cycle_ns = CONV_TRIGGER_DUTY_CYCLE_NSEC, // PWM duty cycle in nsec
Mahesh Phalke 2:007533849deb 72 .extra = &pwm_extra_init_params
Mahesh Phalke 2:007533849deb 73 };
Mahesh Phalke 2:007533849deb 74
Mahesh Phalke 2:007533849deb 75 /* LED GPO descriptor */
Mahesh Phalke 2:007533849deb 76 struct no_os_gpio_desc *led_gpio_desc;
Mahesh Phalke 2:007533849deb 77
Mahesh Phalke 2:007533849deb 78 /* UART descriptor */
Mahesh Phalke 2:007533849deb 79 struct no_os_uart_desc *uart_desc;
Mahesh Phalke 2:007533849deb 80
Mahesh Phalke 2:007533849deb 81 /* External interrupt descriptor */
Mahesh Phalke 2:007533849deb 82 struct no_os_irq_ctrl_desc *ext_int_desc;
Mahesh Phalke 2:007533849deb 83
Mahesh Phalke 2:007533849deb 84 /* PWM descriptor */
Mahesh Phalke 2:007533849deb 85 struct no_os_pwm_desc *pwm_desc;
Mahesh Phalke 2:007533849deb 86
Mahesh Phalke 2:007533849deb 87 /******************************************************************************/
Mahesh Phalke 2:007533849deb 88 /************************** Functions Declarations ****************************/
Mahesh Phalke 2:007533849deb 89 /******************************************************************************/
Mahesh Phalke 2:007533849deb 90
Mahesh Phalke 2:007533849deb 91 /******************************************************************************/
Mahesh Phalke 2:007533849deb 92 /************************** Functions Definitions *****************************/
Mahesh Phalke 2:007533849deb 93 /******************************************************************************/
Mahesh Phalke 2:007533849deb 94
Mahesh Phalke 2:007533849deb 95 /**
Mahesh Phalke 2:007533849deb 96 * @brief Initialize the GPIOs
Mahesh Phalke 2:007533849deb 97 * @return 0 in case of success, negative error code otherwise
Mahesh Phalke 2:007533849deb 98 */
Mahesh Phalke 2:007533849deb 99 static int32_t init_gpio(void)
Mahesh Phalke 2:007533849deb 100 {
Mahesh Phalke 2:007533849deb 101 int32_t ret;
Mahesh Phalke 2:007533849deb 102
Mahesh Phalke 2:007533849deb 103 /* Initialize the LED GPO */
Mahesh Phalke 2:007533849deb 104 ret = no_os_gpio_get_optional(&led_gpio_desc, &led_gpio_init_params);
Mahesh Phalke 2:007533849deb 105 if (ret) {
Mahesh Phalke 2:007533849deb 106 return ret;
Mahesh Phalke 2:007533849deb 107 }
Mahesh Phalke 2:007533849deb 108
Mahesh Phalke 2:007533849deb 109 ret = no_os_gpio_direction_output(led_gpio_desc, NO_OS_GPIO_HIGH);
Mahesh Phalke 2:007533849deb 110 if (ret) {
Mahesh Phalke 2:007533849deb 111 return ret;
Mahesh Phalke 2:007533849deb 112 }
Mahesh Phalke 2:007533849deb 113
Mahesh Phalke 2:007533849deb 114 return 0;
Mahesh Phalke 2:007533849deb 115 }
Mahesh Phalke 2:007533849deb 116
Mahesh Phalke 2:007533849deb 117 /**
Mahesh Phalke 2:007533849deb 118 * @brief Initialize the UART peripheral
Mahesh Phalke 2:007533849deb 119 * @return 0 in case of success, negative error code otherwise
Mahesh Phalke 2:007533849deb 120 */
Mahesh Phalke 2:007533849deb 121 static int32_t init_uart(void)
Mahesh Phalke 2:007533849deb 122 {
Mahesh Phalke 2:007533849deb 123 return no_os_uart_init(&uart_desc, &uart_init_params);
Mahesh Phalke 2:007533849deb 124 }
Mahesh Phalke 2:007533849deb 125
Mahesh Phalke 2:007533849deb 126 /**
Mahesh Phalke 2:007533849deb 127 * @brief Initialize the IRQ contoller
Mahesh Phalke 2:007533849deb 128 * @return 0 in case of success, negative error code otherwise
Mahesh Phalke 2:007533849deb 129 */
Mahesh Phalke 2:007533849deb 130 static int32_t init_interrupt(void)
Mahesh Phalke 2:007533849deb 131 {
Mahesh Phalke 2:007533849deb 132 int32_t ret;
Mahesh Phalke 2:007533849deb 133
Mahesh Phalke 2:007533849deb 134 /* Init interrupt controller for external interrupt */
Mahesh Phalke 2:007533849deb 135 ret = no_os_irq_ctrl_init(&ext_int_desc, &ext_int_init_params);
Mahesh Phalke 2:007533849deb 136 if (ret) {
Mahesh Phalke 2:007533849deb 137 return ret;
Mahesh Phalke 2:007533849deb 138 }
Mahesh Phalke 2:007533849deb 139
Mahesh Phalke 2:007533849deb 140 /* Register a callback function for external interrupt */
Mahesh Phalke 2:007533849deb 141 ret = no_os_irq_register_callback(ext_int_desc,
Mahesh Phalke 2:007533849deb 142 EXT_INT_ID,
Mahesh Phalke 2:007533849deb 143 &ext_int_callback_desc);
Mahesh Phalke 2:007533849deb 144 if (ret) {
Mahesh Phalke 2:007533849deb 145 return ret;
Mahesh Phalke 2:007533849deb 146 }
Mahesh Phalke 2:007533849deb 147
Mahesh Phalke 2:007533849deb 148 /* Enable external interrupt */
Mahesh Phalke 2:007533849deb 149 ret = no_os_irq_enable(ext_int_desc, EXT_INT_ID);
Mahesh Phalke 2:007533849deb 150 if (ret) {
Mahesh Phalke 2:007533849deb 151 return ret;
Mahesh Phalke 2:007533849deb 152 }
Mahesh Phalke 2:007533849deb 153
Mahesh Phalke 2:007533849deb 154 return 0;
Mahesh Phalke 2:007533849deb 155 }
Mahesh Phalke 2:007533849deb 156
Mahesh Phalke 2:007533849deb 157 /**
Mahesh Phalke 2:007533849deb 158 * @brief Initialize the PWM contoller
Mahesh Phalke 2:007533849deb 159 * @return 0 in case of success, negative error code otherwise
Mahesh Phalke 2:007533849deb 160 */
Mahesh Phalke 2:007533849deb 161 static int32_t init_pwm(void)
Mahesh Phalke 2:007533849deb 162 {
Mahesh Phalke 2:007533849deb 163 int32_t ret;
Mahesh Phalke 2:007533849deb 164
Mahesh Phalke 2:007533849deb 165 /* Initialize the PWM interface to generate PWM signal
Mahesh Phalke 2:007533849deb 166 * on conversion trigger event pin */
Mahesh Phalke 2:007533849deb 167 ret = no_os_pwm_init(&pwm_desc, &pwm_init_params);
Mahesh Phalke 2:007533849deb 168 if (ret) {
Mahesh Phalke 2:007533849deb 169 return ret;
Mahesh Phalke 2:007533849deb 170 }
Mahesh Phalke 2:007533849deb 171
Mahesh Phalke 2:007533849deb 172 ret = no_os_pwm_enable(pwm_desc);
Mahesh Phalke 2:007533849deb 173 if (ret) {
Mahesh Phalke 2:007533849deb 174 return ret;
Mahesh Phalke 2:007533849deb 175 }
Mahesh Phalke 2:007533849deb 176
Mahesh Phalke 2:007533849deb 177 return 0;
Mahesh Phalke 2:007533849deb 178 }
Mahesh Phalke 2:007533849deb 179
Mahesh Phalke 2:007533849deb 180 /**
Mahesh Phalke 2:007533849deb 181 * @brief Initialize the system peripherals
Mahesh Phalke 2:007533849deb 182 * @return 0 in case of success, negative error code otherwise
Mahesh Phalke 2:007533849deb 183 */
Mahesh Phalke 2:007533849deb 184 int32_t init_system(void)
Mahesh Phalke 2:007533849deb 185 {
Mahesh Phalke 2:007533849deb 186 int32_t ret;
Mahesh Phalke 2:007533849deb 187
Mahesh Phalke 2:007533849deb 188 ret = init_gpio();
Mahesh Phalke 2:007533849deb 189 if (ret) {
Mahesh Phalke 2:007533849deb 190 return ret;
Mahesh Phalke 2:007533849deb 191 }
Mahesh Phalke 2:007533849deb 192
Mahesh Phalke 2:007533849deb 193 ret = init_uart();
Mahesh Phalke 2:007533849deb 194 if (ret) {
Mahesh Phalke 2:007533849deb 195 return ret;
Mahesh Phalke 2:007533849deb 196 }
Mahesh Phalke 2:007533849deb 197
Mahesh Phalke 2:007533849deb 198 #if (DATA_CAPTURE_MODE == CONTINUOUS_DATA_CAPTURE)
Mahesh Phalke 2:007533849deb 199 ret = init_interrupt();
Mahesh Phalke 2:007533849deb 200 if (ret) {
Mahesh Phalke 2:007533849deb 201 return ret;
Mahesh Phalke 2:007533849deb 202 }
Mahesh Phalke 2:007533849deb 203
Mahesh Phalke 2:007533849deb 204 ret = init_pwm();
Mahesh Phalke 2:007533849deb 205 if (ret) {
Mahesh Phalke 2:007533849deb 206 return ret;
Mahesh Phalke 2:007533849deb 207 }
Mahesh Phalke 2:007533849deb 208 #endif
Mahesh Phalke 2:007533849deb 209
Mahesh Phalke 2:007533849deb 210 #if defined(USE_SDRAM_CAPTURE_BUFFER)
Mahesh Phalke 2:007533849deb 211 ret = sdram_init();
Mahesh Phalke 2:007533849deb 212 if (ret) {
Mahesh Phalke 2:007533849deb 213 return ret;
Mahesh Phalke 2:007533849deb 214 }
Mahesh Phalke 2:007533849deb 215 #endif
Mahesh Phalke 2:007533849deb 216
Mahesh Phalke 2:007533849deb 217 return 0;
Mahesh Phalke 2:007533849deb 218 }