Diff: app/app_config.c

Revision:

1:edd760d6380f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/app_config.c	Thu Sep 30 11:58:20 2021 +0100
@@ -0,0 +1,117 @@
+/***************************************************************************//**
+ *   @file    app_config.c
+ *   @brief   Application configurations module
+ *   @details This module contains the configurations needed for IIO application
+********************************************************************************
+ * Copyright (c) 2021 Analog Devices, Inc.
+ * All rights reserved.
+ *
+ * This software is proprietary to Analog Devices, Inc. and its licensors.
+ * By using this software you agree to the terms of the associated
+ * Analog Devices Software License Agreement.
+*******************************************************************************/
+
+/******************************************************************************/
+/***************************** Include Files **********************************/
+/******************************************************************************/
+
+#include <stdbool.h>
+#include "app_config.h"
+#include "adc_data_capture.h"
+#include "error.h"
+#include "gpio.h"
+#include "irq.h"
+#include "pwm.h"
+#include "uart.h"
+
+/******************************************************************************/
+/************************ Macros/Constants ************************************/
+/******************************************************************************/
+
+/******************************************************************************/
+/*************************** Types Declarations *******************************/
+/******************************************************************************/
+
+/* External interrupt init parameters */
+static struct irq_init_param ext_int_init_params = {
+	.irq_ctrl_id = EXTERNAL_INT_ID1,
+	.extra = &ext_int_extra_init_params
+};
+
+/* External interrupt callback descriptor */
+static struct callback_desc ext_int_callback_desc = {
+	data_capture_callback,
+	NULL,
+	NULL
+};
+
+/* PWM init parameters */
+static struct pwm_init_param pwm_init_params = {
+	.id = EXT_TRIGGER_PIN,                          // GPIO used for PWM
+	.period_ns = CONV_TRIGGER_PERIOD_NSEC,          // PWM period in nsec
+	.duty_cycle_ns = CONV_TRIGGER_DUTY_CYCLE_NSEC	// PWM duty cycle in nsec
+}; 
+
+/* PWM descriptor */
+struct pwm_desc *pwm_desc;
+
+/* UART init parameters structure */
+struct uart_init_param uart_init_params = {
+	.device_id = NULL,
+	.baud_rate = IIO_UART_BAUD_RATE,
+	.extra = &uart_extra_init_params
+};
+
+/* External interrupt descriptor */
+struct irq_ctrl_desc *ext_int_desc;
+
+/******************************************************************************/
+/************************ Functions Prototypes ********************************/
+/******************************************************************************/
+
+/******************************************************************************/
+/************************ Functions Definitions *******************************/
+/******************************************************************************/
+
+/**
+ * @brief 	Initialize the IRQ contoller
+ * @return	SUCCESS in case of success, negative error code otherwise.
+ * @details	This function initialize the interrupts for system peripherals
+ */
+static int32_t init_interrupt(void)
+{
+	do {
+		/* Init interrupt controller for external interrupt */
+		if (irq_ctrl_init(&ext_int_desc, &ext_int_init_params) != SUCCESS) {
+			break;
+		}
+		/* Register a callback function for external interrupt */
+		if (irq_register_callback(ext_int_desc,
+			EXTERNAL_INT_ID1,
+			&ext_int_callback_desc) != SUCCESS) {
+			break;
+		}
+		return SUCCESS;
+	} while (0);
+
+	return FAILURE;
+}
+
+/**
+ * @brief 	Initializing system peripherals
+ * @return	SUCCESS in case of success, negative error code otherwise.
+ * @details	This function initializes system peripherals for the application
+ */
+int32_t init_system(void)
+{
+	if (init_interrupt() != SUCCESS)
+		return FAILURE;
+
+	/* Initialize the PWM interface to generate PWM signal
+	 * on conversion trigger event pin */
+	if (pwm_init(&pwm_desc, &pwm_init_params) != SUCCESS) {
+		return FAILURE;
+	}
+	
+	return SUCCESS;
+}
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