drivers/media/usb/pvrusb2/pvrusb2-util.h

   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 */