From 4b644b22bf4ced4406eb6427a7e437604fc26357 Mon Sep 17 00:00:00 2001
From: BlackMark <me@blackmark.me>
Date: Fri, 21 Feb 2020 17:29:45 +0100
Subject: [PATCH] Completely separted driver from interface

---
 hardware.hpp | 13 +++++++++++++
 spi.hpp      | 11 ++---------
 2 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/hardware.hpp b/hardware.hpp
index c0fc2af..4defd34 100644
--- a/hardware.hpp
+++ b/hardware.hpp
@@ -33,6 +33,19 @@ class Hardware {
 		SPCR |= (1 << SPE);
 	}
 
+	static uint8_t transfer(uint8_t data)
+	{
+		SPDR = data;
+		while (!(SPSR & (1 << SPIF)))
+			;
+		return SPDR;
+	}
+
+	static void select(bool selectState)
+	{
+		sm_ss = !selectState;
+	}
+
   private:
 	static io::Pin<io::P::B5> sm_sck;
 	static io::Pin<io::P::B4> sm_miso;
diff --git a/spi.hpp b/spi.hpp
index 822f0ca..3d535a6 100644
--- a/spi.hpp
+++ b/spi.hpp
@@ -17,22 +17,15 @@ class Spi {
 
 	static uint8_t transfer(uint8_t ui8Data)
 	{
-		SPDR = ui8Data;
-		while (!(SPSR & (1 << SPIF)))
-			;
-		return SPDR;
+		return Driver::transfer(ui8Data);
 	}
 
 	static void select(bool bSelect)
 	{
-		sm_cSS.write(!bSelect);
+		Driver::select(bSelect);
 	}
 
   private:
-	static io::Pin<io::P::B5> sm_cSCK;
-	static io::Pin<io::P::B4> sm_cMISO;
-	static io::Pin<io::P::B3> sm_cMOSI;
-	static io::Pin<io::P::B2> sm_cSS;
 };
 
 } // namespace spi