1 /*
2  * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
3  *
4  * This software is licensed under the terms of the GNU General Public
5  * License version 2, as published by the Free Software Foundation, and
6  * may be copied, distributed, and modified under those terms.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU General Public License for more details.
12  */
13 
14 #ifndef __GDM_ENDIAN_H__
15 #define __GDM_ENDIAN_H__
16 
17 #include <linux/types.h>
18 
19 /*
20  * For data in "device-endian" byte order (device endianness is model
21  * dependent).  Analogous to __leXX or __beXX.
22  */
23 typedef __u32 __bitwise __dev32;
24 typedef __u16 __bitwise __dev16;
25 
26 enum {
27 	ENDIANNESS_MIN = 0,
28 	ENDIANNESS_UNKNOWN,
29 	ENDIANNESS_LITTLE,
30 	ENDIANNESS_BIG,
31 	ENDIANNESS_MIDDLE,
32 	ENDIANNESS_MAX
33 };
34 
35 struct gdm_endian {
36 	u8 dev_ed;
37 };
38 
39 void gdm_set_endian(struct gdm_endian *ed, u8 dev_endian);
40 __dev16 gdm_cpu_to_dev16(struct gdm_endian *ed, u16 x);
41 u16 gdm_dev16_to_cpu(struct gdm_endian *ed, __dev16 x);
42 __dev32 gdm_cpu_to_dev32(struct gdm_endian *ed, u32 x);
43 u32 gdm_dev32_to_cpu(struct gdm_endian *ed, __dev32 x);
44 
45 #endif /*__GDM_ENDIAN_H__*/
46