From 06310475dfe9665b3e9cd2718ae707270775bd31 Mon Sep 17 00:00:00 2001
From: jake <jakegoodwin@tutanota.com>
Date: Wed, 30 Aug 2023 20:16:41 -0700
Subject: [PATCH] updated and added some basic tests for the driver

---
 src/CMakeLists.txt              |  4 ++-
 src/gy521_driver/CMakeLists.txt |  7 +++++
 src/gy521_driver/gy521_driver.c | 53 +++++++++++++++++++++++++++++++++
 src/gy521_driver/gy521_driver.h | 49 ++++++++++++++++++++++++++++++
 4 files changed, 112 insertions(+), 1 deletion(-)
 create mode 100644 src/gy521_driver/CMakeLists.txt
 create mode 100644 src/gy521_driver/gy521_driver.c
 create mode 100644 src/gy521_driver/gy521_driver.h

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index e89dd68..d0d28d2 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,4 +1,5 @@
 add_subdirectory(led_driver)
+add_subdirectory(gy521_driver)
 
 
 add_executable(main
@@ -6,5 +7,6 @@ add_executable(main
 )
 
 target_link_libraries(main
-    led_driver 
+    led_driver
+    gy521_driver
 )
diff --git a/src/gy521_driver/CMakeLists.txt b/src/gy521_driver/CMakeLists.txt
new file mode 100644
index 0000000..cbcf02c
--- /dev/null
+++ b/src/gy521_driver/CMakeLists.txt
@@ -0,0 +1,7 @@
+add_library(gy521_driver STATIC
+    gy521_driver.c
+)
+
+target_include_directories(gy521_driver PUBLIC
+    ${CMAKE_CURRENT_LIST_DIR}
+)
diff --git a/src/gy521_driver/gy521_driver.c b/src/gy521_driver/gy521_driver.c
new file mode 100644
index 0000000..2bd095c
--- /dev/null
+++ b/src/gy521_driver/gy521_driver.c
@@ -0,0 +1,53 @@
+/*
+ * Author: Jake Goodwin
+ * Date: 2023
+ * Description:
+ */
+#include "gy521_driver.h"
+#include <stdint.h>
+
+
+typedef struct{
+    uint16_t x;
+    uint16_t y;
+    uint16_t z;
+}gyro_values_struct;
+
+typedef struct{
+    uint16_t x;
+    uint16_t y;
+    uint16_t z;
+}accel_values_struct;
+
+typedef struct{
+    _Bool (*init)(uint8_t slv_addr); 
+}methods_struct;
+
+typedef struct{
+    uint8_t slave_address;
+    gyro_values_struct gyro;
+    accel_values_struct accel;
+    methods_struct methods;
+}gy521_module_struct;
+
+
+_Bool init_gy521(uint8_t slave_address) {
+    if(slave_address != TWI_GY521_ADDR1 && slave_address != TWI_GY521_ADDR2) {
+        return 0;
+    }
+
+    return 1;
+}
+
+_Bool module_test(gy521_module_struct *m)
+{
+    _Bool ret = m->methods.init(TWI_GY521_ADDR1);
+    return ret;
+}
+
+
+/* returns 1 */  
+uint8_t test_function(void)
+{
+    return 1;
+}
diff --git a/src/gy521_driver/gy521_driver.h b/src/gy521_driver/gy521_driver.h
new file mode 100644
index 0000000..fde1227
--- /dev/null
+++ b/src/gy521_driver/gy521_driver.h
@@ -0,0 +1,49 @@
+/*
+ * Author: Jake Goodwin
+ * Date: 2023
+ * Description:
+ */
+
+#ifndef GY521_DRIVER_H
+#define GY521_DRIVER_H
+
+#include <stdint.h>
+
+/*
+ * ############################
+ * Defines
+ * ############################
+ */
+
+#define     STARTUP_DELAY 30 //in ms
+#define     TWI_GY521_ADDR1 0x68    //ADO Logic Low
+#define     TWI_GY521_ADDR2 0x69    //ADO Logic High
+
+/*
+ * ############################
+ * Types/Structures 
+ * ############################
+ */ 
+//typedef struct gy521_module_struct *gy521_module;
+typedef struct gy521_module_struct *gy521_module;
+
+/*
+ * ############################
+ * Function Prototypes
+ * ############################
+ */ 
+
+/*Function pointers for the TX and RX fuctionality*/
+extern void twi_tx(uint8_t *data, uint8_t size);
+extern void twi_rx(uint8_t *data, uint8_t size);
+
+_Bool init_gy521(uint8_t slave_address);
+
+
+
+_Bool module_test(struct gy521_module_struct *m);
+uint8_t test_function(void);
+
+
+
+#endif /* GY521_DRIVER_H */