ported driver to zephyr

Author: vid553

.gitignore

@@ -53,3 +53,6 @@ Temporary Items
 *~
 [._]*.un~
 *.swp
+
+# Zephyr build files
+examples/Example_Zephyr/build/*

examples/Example_Zephyr/CMakeLists.txt

@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.13.1)
+
+find_package(Zephyr HINTS $ENV{ZEPHYR_BASE})
+project(sparkfun_ublox_zephyr_library)
+
+zephyr_include_directories(../../src/)
+target_sources(app PRIVATE ../../src/SparkFun_Ublox_Zephyr_Library.cpp)
+target_sources(app PRIVATE ../../src/ublox_lib_interface.cpp)
+
+target_sources(app PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c)

examples/Example_Zephyr/nrf52840dk_nrf52840.overlay

@@ -0,0 +1,4 @@
+&i2c0 {
+	status = "okay";
+	compatible = "nordic,nrf-twim";
+};

examples/Example_Zephyr/prj.conf

@@ -0,0 +1,7 @@
+#turn on c++ support
+CONFIG_CPLUSPLUS=y
+
+# turn on peripherals
+CONFIG_GPIO=y
+CONFIG_I2C=y
+CONFIG_I2C_0=y

examples/Example_Zephyr/src/main.c

@@ -0,0 +1,95 @@
+/*
+  Read NMEA sentences over I2C using Ublox module SAM-M8Q, NEO-M8P, ZED-F9P, etc
+  By: Nathan Seidle
+  SparkFun Electronics
+  Date: August 22nd, 2018
+  License: MIT. See license file for more information but you can
+  basically do whatever you want with this code.
+
+  This example reads the NMEA setences from the Ublox module over I2c and outputs
+  them to the serial port
+
+  Open the serial monitor at 115200 baud to see the output
+  I2C clock speed: 100 kHz
+*/
+
+#include <zephyr/types.h>
+#include <zephyr.h>
+#include <device.h>
+#include <drivers/i2c.h>
+
+#include "ublox_lib_interface.h"
+
+
+#define I2C_DEV "I2C_0"
+
+struct device *gpio_dev;
+struct device *i2c_dev;
+/* I2C pins used are defaults for I2C_0 on nrf52840
+	SDA: 26
+	SCL: 27
+*/
+
+uint8_t init_gpio(void) {
+	const char* const gpioName = "GPIO_0";
+	gpio_dev = device_get_binding(gpioName);
+	if (gpio_dev == NULL) {
+		printk("Could not get %s device\n", gpioName);
+		return -1;
+	}
+    int err = set_gpio_dev(gpio_dev);
+    if (err) {
+        return -1;
+    }
+    return 0;
+}
+
+uint8_t init_i2c(void) {
+	i2c_dev = device_get_binding(I2C_DEV);
+    if (!i2c_dev)
+    {
+        printk("I2C_0 error\n");
+        return -1;
+    }
+    else
+    {
+        printk("I2C_0 Init OK\n");
+        return 0;
+    }
+}
+
+uint8_t init_gps(void) {
+	if (gps_begin(i2c_dev) != 0)
+  	{
+    	printk("Ublox GPS init error!\n");
+        return -1;
+  	}
+    return 0;
+}
+
+
+void main(void) {
+	printk("UBlox i2c test\n");
+
+	int err;
+    err = init_gpio();
+    if (err) {
+        return;
+    }
+    err = init_i2c();
+    if (err) {
+        return;
+    }
+
+	err = init_gps();
+    if (err) {
+        return;
+    }
+
+	while(1) {
+		//check_ublox(); // See if new data is available. Process bytes as they come in.
+        get_position();
+        get_datetime();
+		k_msleep(250); // Don't pound too hard on the I2C bus
+	}
+}