Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / staging / gdm724x / gdm_endian.h

diff --git a/kernel/drivers/staging/gdm724x/gdm_endian.h b/kernel/drivers/staging/gdm724x/gdm_endian.h
new file mode 100644 (file)
index 0000000..9b2531f
--- /dev/null
+++ b/kernel/drivers/staging/gdm724x/gdm_endian.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ */
+
+#ifndef __GDM_ENDIAN_H__
+#define __GDM_ENDIAN_H__
+
+#include <linux/types.h>
+
+#define Endian16_Swap(value) \
+       ((((u16)((value) & 0x00FF)) << 8) | \
+        (((u16)((value) & 0xFF00)) >> 8))
+
+#define Endian32_Swap(value) \
+       ((((u32)((value) & 0x000000FF)) << 24) | \
+        (((u32)((value) & 0x0000FF00)) << 8) | \
+        (((u32)((value) & 0x00FF0000)) >> 8) | \
+        (((u32)((value) & 0xFF000000)) >> 24))
+
+enum {
+       ENDIANNESS_MIN = 0,
+       ENDIANNESS_UNKNOWN,
+       ENDIANNESS_LITTLE,
+       ENDIANNESS_BIG,
+       ENDIANNESS_MIDDLE,
+       ENDIANNESS_MAX
+};
+
+struct gdm_endian {
+       u8 dev_ed;
+       u8 host_ed;
+};
+
+void gdm_set_endian(struct gdm_endian *ed, u8 dev_endian);
+u16 gdm_cpu_to_dev16(struct gdm_endian *ed, u16 x);
+u16 gdm_dev16_to_cpu(struct gdm_endian *ed, u16 x);
+u32 gdm_cpu_to_dev32(struct gdm_endian *ed, u32 x);
+u32 gdm_dev32_to_cpu(struct gdm_endian *ed, u32 x);
+
+#endif /*__GDM_ENDIAN_H__*/