add: zephyr i2c wrapper

Author: aeraterta

i2c.c

@@ -0,0 +1,61 @@
+/**
+ ******************************************************************************
+ * @file    i2c.c
+ * @author  - Anthony E.Raterta
+ * @version V1.0.0
+ * @date    13-September-2024
+ * @brief   I2C wrappers for Zephyr I2C
+ ******************************************************************************
+ * @attention
+ *
+ * Copyright (c) 2024 mcu-dev
+ * All rights reserved.
+ *
+ * This software is licensed under terms that can be found in the LICENSE file
+ * in the root directory of this software component.
+ * If no LICENSE file comes with this software, it is provided AS-IS.
+ *
+ ******************************************************************************
+ */
+#include <stdint.h>
+#include <stdio.h>
+#include <zephyr/device.h>
+#include <zephyr/devicetree.h>
+#include <zephyr/drivers/i2c.h>
+#include <zephyr/kernel.h>
+
+#include "i2c.h"
+
+#define i2c0_master DT_NODELABEL(i2c0)
+
+bool init_i2c0(struct device **bus) {
+  *bus = DEVICE_DT_GET(i2c0_master);
+  if (!device_is_ready(*bus)) {
+    printk("I2C bus is not ready!\n\r");
+    return false;
+  }
+  return true;
+}
+
+int i2c0_write_bytes(struct device **bus, uint8_t address,
+                     uint8_t *data_buffer) {
+  uint32_t bytecount = 2;
+  return i2c_write(*bus, data_buffer, bytecount, address);
+}
+
+int i2c0_read_byte(struct device **bus, uint8_t address,
+                   uint8_t data_read_virtual_address, uint8_t *read_data) {
+  int ret;
+  uint32_t bytecount = 1;
+
+  ret = i2c_write(*bus, &data_read_virtual_address, bytecount, address);
+  if (ret != 0) {
+    return ret;
+  }
+
+  ret = i2c_read(*bus, read_data, sizeof(*read_data), address);
+  if (ret != 0) {
+    return ret;
+  }
+  return 0;
+}

i2c.h

@@ -0,0 +1,31 @@
+/**
+ ******************************************************************************
+ * @file    i2c.h
+ * @author  - Anthony E.Raterta
+ * @version V1.0.0
+ * @date    13-September-2024
+ * @brief   I2C wrappers prototypes
+ ******************************************************************************
+ * @attention
+ *
+ * Copyright (c) 2024 mcu-dev
+ * All rights reserved.
+ *
+ * This software is licensed under terms that can be found in the LICENSE file
+ * in the root directory of this software component.
+ * If no LICENSE file comes with this software, it is provided AS-IS.
+ *
+ ******************************************************************************
+ */
+#ifndef I2C_H_INCLUDED
+#define I2C_H_INCLUDED
+
+#include <stdint.h>
+#include <zephyr/device.h>
+
+bool init_i2c0(struct device **bus);
+int i2c0_write_bytes(struct device **bus, uint8_t address,
+                     uint8_t *data_buffer);
+int i2c0_read_byte(struct device **bus, uint8_t address,
+                   uint8_t data_read_virtual_address, uint8_t *read_data);
+#endif