added LZS definitions

include/linux/isdn_lzscomp.h

@@ -0,0 +1,26 @@
+/*
+ * $Id$
+ *
+ * Header for isdn_lzscomp.c
+ * Concentrated here to not mess up half a dozen kernel headers with code
+ * snippets
+ *
+ */
+
+#define CI_LZS_COMPRESS		17
+#define CILEN_LZS_COMPRESS	5
+
+#define LZS_CMODE_NONE		0
+#define LZS_CMODE_LCB		1
+#define LZS_CMODE_CRC		2
+#define LZS_CMODE_SEQNO		3	/* MUST be implemented (default) */
+#define LZS_CMODE_EXT		4	/* Seems to be what Win0.95 uses */
+
+#define LZS_COMP_MAX_HISTS	1	/* Don't waste peers ressources */
+#define LZS_COMP_DEF_HISTS	1	/* Most likely to negotiate */
+#define LZS_DECOMP_MAX_HISTS	32	/* More is really nonsense */
+#define LZS_DECOMP_DEF_HISTS	8	/* If we get it, this may be optimal */
+
+#define LZS_HIST_BYTE1(word)   	(word>>8)	/* Just for better reading */
+#define LZS_HIST_BYTE2(word)	(word&0xff)	/* of this big endian stuff */
+#define LZS_HIST_WORD(b1,b2)	((b1<<8)|b2)	/* (network byte order rulez) */