start ctap protocol

ctap.h

@@ -0,0 +1,33 @@
+#ifndef _CTAP_H
+#define _CTAP_H
+
+#define CTAP_MAKE_CREDENTIAL        0x01
+#define CTAP_GET_ASSERTION          0x02
+#define CTAP_CANCEL                 0x03
+#define CTAP_GET_INFO               0x04
+#define CTAP_CLIENT_PIN             0x06
+#define CTAP_RESET                  0x07
+#define GET_NEXT_ASSERTION          0x08
+#define CTAP_VENDOR_FIRST           0x40
+#define CTAP_VENDOR_LAST            0xBF
+
+typedef struct
+{
+    uint8_t * data;
+    uint16_t length;
+} CTAP_RESPONSE;
+
+
+void ctap_handle_packet(uint8_t * pkt_raw, int length, CTAP_RESPONSE * resp);
+
+// Must be implemented by application
+// data is HID_MESSAGE_SIZE long in bytes
+extern void ctap_write_block(uint8_t * data);
+
+// Buffer data and send in HID_MESSAGE_SIZE chunks
+// if len == 0, FLUSH
+// if len == -1, RESET
+extern void ctap_write(void * _data, int len);
+
+
+#endif