First version that sometimes works

librfid1999/src/rfid_reader_cm5121_openct.c

@@ -0,0 +1,54 @@
+/* CM5121 backend for OpenCT virtual slot */
+
+#include <stdio.h>
+
+#include <librfid/rfid_asic.h>
+#include <openct/openct.h>
+
+/* FIXME: get rid of this global crap.  In fact this needs to become part of
+ * struct rfid_reader_handle  */
+static ct_lock_handle lock;
+static int slot = 1;
+
+/* this is the sole function required by rfid_reader_cm5121.c */
+int 
+PC_to_RDR_Escape(void *handle, 
+		 const unsigned char *tx_buf, size_t tx_len,
+		 unsigned char *rx_buf, size_t *rx_len)
+{
+	int rc;
+	ct_handle *h = (ct_handle *) handle;
+
+	rc = ct_card_transact(h, 1, tx_buf, tx_len, rx_buf, *rx_len);
+	if (rc >= 0) {
+		*rx_len = rc;
+		return 0;
+	}
+
+	return rc;
+}
+
+
+int cm5121_source_init(struct rfid_asic_transport_handle *rath)
+{
+	struct ct_handle *h;
+	int rc;
+	unsigned char atr[64];
+
+	h = ct_reader_connect(0);
+	if (!h)
+		return -1;
+
+	rc = ct_card_lock(h, slot, IFD_LOCK_EXCLUSIVE, &lock);
+	if (rc < 0)
+		return -1;
+
+	rc = ct_card_reset(h, slot, atr, sizeof(atr));
+	if (rc < 0)
+		return -1;
+
+	rath->data = h;
+
+	return 0;
+}
+