xref: /openbmc/u-boot/lib/lzo/lzodefs.h (revision d66ff4ba)
1 /*
2  *  lzodefs.h -- architecture, OS and compiler specific defines
3  *
4  *  Copyright (C) 1996-2005 Markus F.X.J. Oberhumer <markus@oberhumer.com>
5  *
6  *  The full LZO package can be found at:
7  *  http://www.oberhumer.com/opensource/lzo/
8  *
9  *  Changed for kernel use by:
10  *  Nitin Gupta <nitingupta910@gmail.com>
11  *  Richard Purdie <rpurdie@openedhand.com>
12  */
13 
14 #define LZO_VERSION		0x2020
15 #define LZO_VERSION_STRING	"2.02"
16 #define LZO_VERSION_DATE	"Oct 17 2005"
17 
18 #define M1_MAX_OFFSET	0x0400
19 #define M2_MAX_OFFSET	0x0800
20 #define M3_MAX_OFFSET	0x4000
21 #define M4_MAX_OFFSET	0xbfff
22 
23 #define M1_MIN_LEN	2
24 #define M1_MAX_LEN	2
25 #define M2_MIN_LEN	3
26 #define M2_MAX_LEN	8
27 #define M3_MIN_LEN	3
28 #define M3_MAX_LEN	33
29 #define M4_MIN_LEN	3
30 #define M4_MAX_LEN	9
31 
32 #define M1_MARKER	0
33 #define M2_MARKER	64
34 #define M3_MARKER	32
35 #define M4_MARKER	16
36 
37 #define D_BITS		14
38 #define D_MASK		((1u << D_BITS) - 1)
39 #define D_HIGH		((D_MASK >> 1) + 1)
40 
41 #define DX2(p, s1, s2)	(((((size_t)((p)[2]) << (s2)) ^ (p)[1]) \
42 							<< (s1)) ^ (p)[0])
43 #define DX3(p, s1, s2, s3)	((DX2((p)+1, s2, s3) << (s1)) ^ (p)[0])
44