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Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-util.h')
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-util.h63
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: ***
+ */