1 files changed, 87 insertions, 0 deletions
diff --git a/hal/uart.hpp b/hal/uart.hpp
new file mode 100644
index 0000000..179dd4a
--- /dev/null
+++ b/hal/uart.hpp
@@ -0,0 +1,87 @@
+/* 
+ * File:   uart.hpp
+ * Author: naopross
+ *
+ * Created on May 2, 2018, 7:04 PM
+ */
+
+#ifndef UART_HPP
+#define	UART_HPP
+
+#include <cstdint>
+#include <cstddef>
+#include <string>
+
+extern "C" {
+void usart_1_isr();
+void usart_2_isr();
+void usart_3_isr();
+void usart_4_isr();
+}
+
+namespace uart
+{
+	const unsigned devices_count = 4;
+
+	enum class status : unsigned int
+	{
+		rx_data_available = 1<<0,
+		rx_overrun_error = 1<<1,
+		framing_error = 1<<2,
+		parity_error = 1<<3,
+		receiver_ide = 1<<4,
+		tx_complete = 1<<8,
+		tx_full = 1<<9,
+	};
+
+	enum class transfer_status : unsigned int
+	{
+		rx_full = 1<<0,
+		rx_data_present = 1<<1,
+		rx_empty = 1<<2,
+		tx_full = 1<<3,
+		tx_empty = 1<<4,
+	};
+
+	std::string rx_buffer[devices_count];
+	std::string tx_buffer[devices_count];
+
+	template<unsigned dev>
+	void initialize();
+
+    template<unsigned dev>
+    uint8_t peek(uint16_t offset);
+
+    template<unsigned dev>
+    uint8_t read(void);
+
+    template<unsigned dev>
+    unsigned read(uint8_t *buffer, const unsigned numbytes);
+    
+    template<unsigned dev>
+    void write(const uint8_t byte);
+
+    template<unsigned dev>
+    unsigned write(const uint8_t *buffer, const unsigned numbytes);
+
+    template<unsigned dev>
+    status status();
+
+    template<unsigned dev>
+    transfer_status tranfer_status();
+
+    template<unsigned dev>
+    unsigned rx_buffer_size();
+
+    template<unsigned dev>
+    unsigned tx_buffer_size();
+
+    template<unsigned dev>
+    bool rx_buffer_empty();
+
+    template<unsigned dev>
+    bool tx_buffer_full();
+}
+
+#endif	/* UART_HPP */
+