diff options
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-util.h')
-rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-util.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-util.h b/drivers/media/video/pvrusb2/pvrusb2-util.h new file mode 100644 index 000000000000..e53aee416f56 --- /dev/null +++ b/drivers/media/video/pvrusb2/pvrusb2-util.h @@ -0,0 +1,63 @@ +/* + * + * $Id$ + * + * Copyright (C) 2005 Mike Isely <isely@pobox.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ +#ifndef __PVRUSB2_UTIL_H +#define __PVRUSB2_UTIL_H + +#define PVR2_DECOMPOSE_LE(t,i,d) \ + do { \ + (t)[i] = (d) & 0xff;\ + (t)[i+1] = ((d) >> 8) & 0xff;\ + (t)[i+2] = ((d) >> 16) & 0xff;\ + (t)[i+3] = ((d) >> 24) & 0xff;\ + } while(0) + +#define PVR2_DECOMPOSE_BE(t,i,d) \ + do { \ + (t)[i+3] = (d) & 0xff;\ + (t)[i+2] = ((d) >> 8) & 0xff;\ + (t)[i+1] = ((d) >> 16) & 0xff;\ + (t)[i] = ((d) >> 24) & 0xff;\ + } while(0) + +#define PVR2_COMPOSE_LE(t,i) \ + ((((u32)((t)[i+3])) << 24) | \ + (((u32)((t)[i+2])) << 16) | \ + (((u32)((t)[i+1])) << 8) | \ + ((u32)((t)[i]))) + +#define PVR2_COMPOSE_BE(t,i) \ + ((((u32)((t)[i])) << 24) | \ + (((u32)((t)[i+1])) << 16) | \ + (((u32)((t)[i+2])) << 8) | \ + ((u32)((t)[i+3]))) + + +#endif /* __PVRUSB2_UTIL_H */ + +/* + Stuff for Emacs to see, in order to encourage consistent editing style: + *** Local Variables: *** + *** mode: c *** + *** fill-column: 75 *** + *** tab-width: 8 *** + *** c-basic-offset: 8 *** + *** End: *** + */ |