--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/cmd_proto.h	Sat Feb 21 20:20:06 2009 +0800
@@ -0,0 +1,51 @@
+#ifndef __CMD_PROTO_H_
+#define __CMD_PROTO_H_
+
+#define CP_MAGIC "JC"
+#define CP_MAX_SZ 0x255
+typedef enum {
+    CPCMD_DUMMY,
+    CPCMD_PING,
+    CPCMD_PONG,
+    CPCMD_DATA,
+    CPCMD_ACK,
+    CPCMD_NAK,
+    CPCMD_SHIFT_TDI,
+    CPCMD_SHIFT_TMS,
+    CPCMD_SHIFT_TDI_TDO,
+    CPCMD_MAX
+} cp_ccode_t;
+
+typedef struct {
+    int seq;
+    cp_ccode_t code;
+    int data_sz;
+    char *data;
+} cp_cmd_t;
+
+typedef struct {
+    cp_cmd_t cmds[2];
+    int receiving;
+    int status;
+    int seq;
+    int cnt;
+    int len;
+    char *bufs[2];
+} cmd_proto_t;
+
+extern cmd_proto_t *cmd_proto_new(void);
+extern void cmd_proto_free(cmd_proto_t *cp);
+extern cp_cmd_t *cmd_proto_rcv(cmd_proto_t *cp, int c);
+/*
+ * \return size of filled command.
+ */
+extern int cmd_proto_cmd_fill(char *buf, int seq,
+			      cp_ccode_t code, int data_sz);
+extern cp_cmd_t BAD_CMD;
+extern cp_cmd_t CSUM_ERR_CMD;
+
+#define CP_CMD_HEAD_SZ 5
+#define CP_CMD_TAIL_SZ 1
+#define CP_CMD_OVERHEAD (CP_CMD_HEAD_SZ + CP_CMD_TAIL_SZ)
+
+#endif /* __CMD_PROTO_H_ */