libwmc: beginning of bits for WMC-based devices like UML290

2011-09-17 13:27:54 -05:00
parent 953701a6f8
commit 3dd4cdaf2b
16 changed files with 983 additions and 11 deletions
@@ -0,0 +1,64 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * Copyright (C) 2011 Red Hat, Inc.
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef UTILS_H
+#define UTILS_H
+
+#include <glib.h>
+
+#define DIAG_CONTROL_CHAR 0x7E
+#define DIAG_TRAILER_LEN  3
+
+guint16 crc16 (const char *buffer, gsize len, guint16 seed);
+
+gsize hdlc_escape (const char *inbuf,
+                   gsize inbuf_len,
+                   gboolean escape_all_ctrl,
+                   char *outbuf,
+                   gsize outbuf_len);
+
+gsize hdlc_unescape (const char *inbuf,
+                     gsize inbuf_len,
+                     char *outbuf,
+                     gsize outbuf_len,
+                     gboolean *escaping);
+
+gsize hdlc_encapsulate_buffer (char *inbuf,
+                               gsize cmd_len,
+                               gsize inbuf_len,
+                               guint16 crc_seed,
+                               gboolean add_trailer,
+                               gboolean escape_all_ctrl,
+                               char *outbuf,
+                               gsize outbuf_len);
+
+gsize uml290_wmc_encapsulate (char *inbuf,
+                              gsize cmd_len,
+                              gsize inbuf_len,
+                              char *outbuf,
+                              gsize outbuf_len);
+
+gboolean hdlc_decapsulate_buffer (const char *inbuf,
+                                  gsize inbuf_len,
+                                  char *outbuf,
+                                  gsize outbuf_len,
+                                  gsize *out_decap_len,
+                                  gsize *out_used,
+                                  gboolean *out_need_more);
+
+#endif  /* UTILS_H */
+