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Diffstat (limited to 'drivers/media/pci/cx25821/cx25821-biffuncs.h')
-rw-r--r--drivers/media/pci/cx25821/cx25821-biffuncs.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/media/pci/cx25821/cx25821-biffuncs.h b/drivers/media/pci/cx25821/cx25821-biffuncs.h
new file mode 100644
index 000000000..6c1aa132e
--- /dev/null
+++ b/drivers/media/pci/cx25821/cx25821-biffuncs.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Driver for the Conexant CX25821 PCIe bridge
+ *
+ * Copyright (C) 2009 Conexant Systems Inc.
+ * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
+ */
+
+#ifndef _BITFUNCS_H
+#define _BITFUNCS_H
+
+#define SetBit(Bit) (1 << Bit)
+
+static inline u8 getBit(u32 sample, u8 index)
+{
+ return (u8) ((sample >> index) & 1);
+}
+
+static inline u32 clearBitAtPos(u32 value, u8 bit)
+{
+ return value & ~(1 << bit);
+}
+
+static inline u32 setBitAtPos(u32 sample, u8 bit)
+{
+ sample |= (1 << bit);
+ return sample;
+
+}
+
+#endif