From b5682290c26d4a7d10ba34abaa10f09e4520e3dc Mon Sep 17 00:00:00 2001
From: Niklas Eiling <niklas.eiling@eonerc.rwth-aachen.de>
Date: Tue, 9 Jan 2024 17:06:23 +0100
Subject: [PATCH] I2c: use Switch::selfTest to check i2c bus

Signed-off-by: Niklas Eiling <niklas.eiling@eonerc.rwth-aachen.de>
---
 fpga/include/villas/fpga/ips/i2c.hpp | 1 +
 fpga/lib/ips/i2c.cpp                 | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/fpga/include/villas/fpga/ips/i2c.hpp b/fpga/include/villas/fpga/ips/i2c.hpp
index d342b4cc8..132e88f9e 100644
--- a/fpga/include/villas/fpga/ips/i2c.hpp
+++ b/fpga/include/villas/fpga/ips/i2c.hpp
@@ -32,6 +32,7 @@ public:
   I2c();
   virtual ~I2c();
   virtual bool init() override;
+  virtual bool check() override;
   virtual bool reset() override;
   bool write(u8 address, std::vector<u8> &data);
   bool read(u8 address, std::vector<u8> &data, size_t max_read);
diff --git a/fpga/lib/ips/i2c.cpp b/fpga/lib/ips/i2c.cpp
index 186c96f89..577700ac8 100644
--- a/fpga/lib/ips/i2c.cpp
+++ b/fpga/lib/ips/i2c.cpp
@@ -60,6 +60,13 @@ bool I2c::init() {
   return true;
 }
 
+bool I2c::check() {
+  if (!initDone) {
+    throw RuntimeError("I2C not initialized");
+  }
+  return getSwitch().selfTest();
+}
+
 bool I2c::reset() {
   // we cannot lock here because this may be called in a destructor
   XIic_Reset(&xIic);