2 files changed, 39 insertions, 1 deletions
diff --git a/daemon/src/Gpio.cpp b/daemon/src/Gpio.cpp
index 656c585..23341aa 100644
--- a/daemon/src/Gpio.cpp
+++ b/daemon/src/Gpio.cpp
@@ -1,5 +1,7 @@
 #include "Gpio.h"
 
+#include <limits>
+
 #include <rpc/server.h>
 
 #include "Assembly.h"
@@ -7,5 +9,31 @@
 
 void Gpio::apply(AssemblyContext ctx)
 {
-	ctx.bind("nothing", []{});
+	ctx.bind("/set_mode", [&](const unsigned port, const short mode){ set_mode(port, mode); });
+	ctx.bind("/write", [&](const unsigned port, const short value){ write(port, value); });
+	ctx.bind("/read", [&](const unsigned port) -> short { return read(port); });
+}
+
+
+void Gpio::set_mode(const unsigned port, const short mode)
+{
+	if (SIZE <= port)
+		return;
+	mode_of[port] = mode & 0x1;
+}
+
+
+void Gpio::write(const unsigned port, const short value)
+{
+	if (SIZE <= port)
+		return;
+	value_of[port] = value & 0x1;
+}
+
+
+short Gpio::read(const unsigned port) const
+{
+	if (SIZE <= port)
+		return std::numeric_limits<short>::max();
+	return value_of[port];
 }
diff --git a/daemon/src/Gpio.h b/daemon/src/Gpio.h
index ef77631..e3941f6 100644
--- a/daemon/src/Gpio.h
+++ b/daemon/src/Gpio.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <array>
+
 #include <rpc/server.h>
 
 #include "Assembly.h"
@@ -9,4 +11,12 @@ class Gpio
 {
 public:
 	void apply(AssemblyContext ctx);
+private:
+	static constexpr unsigned SIZE {24};
+	std::array<short, SIZE> mode_of;
+	std::array<short, SIZE> value_of;
+
+	void set_mode(const unsigned port, const short mode);
+	void write(const unsigned port, const short value);
+	short read(const unsigned port) const;
 };