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-rw-r--r--include/net/irda/crc.h29
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diff --git a/include/net/irda/crc.h b/include/net/irda/crc.h
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+/*********************************************************************
+ *
+ * Filename: crc.h
+ * Version:
+ * Description: CRC routines
+ * Status: Experimental.
+ * Author: Dag Brattli <dagb@cs.uit.no>
+ * Created at: Mon Aug 4 20:40:53 1997
+ * Modified at: Sun May 2 20:25:23 1999
+ * Modified by: Dag Brattli <dagb@cs.uit.no>
+ *
+ ********************************************************************/
+
+#ifndef IRDA_CRC_H
+#define IRDA_CRC_H
+
+#include <linux/types.h>
+#include <linux/crc-ccitt.h>
+
+#define INIT_FCS 0xffff /* Initial FCS value */
+#define GOOD_FCS 0xf0b8 /* Good final FCS value */
+
+/* Recompute the FCS with one more character appended. */
+#define irda_fcs(fcs, c) crc_ccitt_byte(fcs, c)
+
+/* Recompute the FCS with len bytes appended. */
+#define irda_calc_crc16(fcs, buf, len) crc_ccitt(fcs, buf, len)
+
+#endif