xref: /linux/drivers/media/usb/pvrusb2/pvrusb2-util.h (revision e65e175b07bef5974045cc42238de99057669ca7)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  *
4  *  Copyright (C) 2005 Mike Isely <isely@pobox.com>
5  */
6 #ifndef __PVRUSB2_UTIL_H
7 #define __PVRUSB2_UTIL_H
8 
9 #define PVR2_DECOMPOSE_LE(t,i,d) \
10     do {    \
11 	(t)[i] = (d) & 0xff;\
12 	(t)[i+1] = ((d) >> 8) & 0xff;\
13 	(t)[i+2] = ((d) >> 16) & 0xff;\
14 	(t)[i+3] = ((d) >> 24) & 0xff;\
15     } while(0)
16 
17 #define PVR2_DECOMPOSE_BE(t,i,d) \
18     do {    \
19 	(t)[i+3] = (d) & 0xff;\
20 	(t)[i+2] = ((d) >> 8) & 0xff;\
21 	(t)[i+1] = ((d) >> 16) & 0xff;\
22 	(t)[i] = ((d) >> 24) & 0xff;\
23     } while(0)
24 
25 #define PVR2_COMPOSE_LE(t,i) \
26     ((((u32)((t)[i+3])) << 24) | \
27      (((u32)((t)[i+2])) << 16) | \
28      (((u32)((t)[i+1])) << 8) | \
29      ((u32)((t)[i])))
30 
31 #define PVR2_COMPOSE_BE(t,i) \
32     ((((u32)((t)[i])) << 24) | \
33      (((u32)((t)[i+1])) << 16) | \
34      (((u32)((t)[i+2])) << 8) | \
35      ((u32)((t)[i+3])))
36 
37 
38 #endif /* __PVRUSB2_UTIL_H */
39