ccid: Introduce ccid_slot_ops + implement simulator/stub for it
This adds a new interface to the CCID implementation, on the card/slot
side. The purpose of this interface (based on function pointers) is
to allow for different real hardware or virtual implementations.
Change-Id: I2c38aa69594a3b22bb5b5e256edfb48481e42793
diff --git a/ccid/ccid_slot_sim.h b/ccid/ccid_slot_sim.h
new file mode 100644
index 0000000..6217756
--- /dev/null
+++ b/ccid/ccid_slot_sim.h
@@ -0,0 +1,3 @@
+#pragma once
+
+extern struct ccid_slot_ops slotsim_slot_ops;