1 /******************************************************************************
3 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
19 ******************************************************************************/
20 #ifndef __BASIC_TYPES_H__
21 #define __BASIC_TYPES_H__
23 #include <linux/types.h>
26 typedef void (*proc_t)(void *);
28 #define FIELD_OFFSET(s, field) ((ssize_t)&((s *)(0))->field)
31 /* TODO: Macros Below are Sync from SD7-Driver. It is necessary
32 * to check correctness */
35 * Call endian free function when
36 * 1. Read/write packet content.
37 * 2. Before write integer to IO.
38 * 3. After read integer from IO.
41 /* Convert little data endian to host ordering */
42 #define EF1BYTE(_val) \
44 #define EF2BYTE(_val) \
46 #define EF4BYTE(_val) \
49 /* Read data from memory */
50 #define READEF1BYTE(_ptr) \
51 EF1BYTE(*((u8 *)(_ptr)))
52 /* Read le16 data from memory and convert to host ordering */
53 #define READEF2BYTE(_ptr) \
55 #define READEF4BYTE(_ptr) \
58 /* Write data to memory */
59 #define WRITEEF1BYTE(_ptr, _val) \
61 (*((u8 *)(_ptr))) = EF1BYTE(_val) \
63 /* Write le data to memory in host ordering */
64 #define WRITEEF2BYTE(_ptr, _val) \
66 (*((u16 *)(_ptr))) = EF2BYTE(_val) \
69 #define WRITEEF4BYTE(_ptr, _val) \
71 (*((u32 *)(_ptr))) = EF2BYTE(_val) \
76 * BIT_LEN_MASK_32(0) => 0x00000000
77 * BIT_LEN_MASK_32(1) => 0x00000001
78 * BIT_LEN_MASK_32(2) => 0x00000003
79 * BIT_LEN_MASK_32(32) => 0xFFFFFFFF
81 #define BIT_LEN_MASK_32(__bitlen) \
82 (0xFFFFFFFF >> (32 - (__bitlen)))
83 #define BIT_LEN_MASK_16(__bitlen) \
84 (0xFFFF >> (16 - (__bitlen)))
85 #define BIT_LEN_MASK_8(__bitlen) \
86 (0xFF >> (8 - (__bitlen)))
88 /* Create an offset bit mask
90 * BIT_OFFSET_LEN_MASK_32(0, 2) => 0x00000003
91 * BIT_OFFSET_LEN_MASK_32(16, 2) => 0x00030000
93 #define BIT_OFFSET_LEN_MASK_32(__bitoffset, __bitlen) \
94 (BIT_LEN_MASK_32(__bitlen) << (__bitoffset))
95 #define BIT_OFFSET_LEN_MASK_16(__bitoffset, __bitlen) \
96 (BIT_LEN_MASK_16(__bitlen) << (__bitoffset))
97 #define BIT_OFFSET_LEN_MASK_8(__bitoffset, __bitlen) \
98 (BIT_LEN_MASK_8(__bitlen) << (__bitoffset))
101 * Return 4-byte value in host byte ordering from
102 * 4-byte pointer in little-endian system.
104 #define LE_P4BYTE_TO_HOST_4BYTE(__pstart) \
105 (EF4BYTE(*((__le32 *)(__pstart))))
106 #define LE_P2BYTE_TO_HOST_2BYTE(__pstart) \
107 (EF2BYTE(*((__le16 *)(__pstart))))
108 #define LE_P1BYTE_TO_HOST_1BYTE(__pstart) \
109 (EF1BYTE(*((u8 *)(__pstart))))
112 Translate subfield (continuous bits in little-endian) of 4-byte
113 value to host byte ordering.*/
114 #define LE_BITS_TO_4BYTE(__pstart, __bitoffset, __bitlen) \
116 (LE_P4BYTE_TO_HOST_4BYTE(__pstart) >> (__bitoffset)) & \
117 BIT_LEN_MASK_32(__bitlen) \
119 #define LE_BITS_TO_2BYTE(__pstart, __bitoffset, __bitlen) \
121 (LE_P2BYTE_TO_HOST_2BYTE(__pstart) >> (__bitoffset)) & \
122 BIT_LEN_MASK_16(__bitlen) \
124 #define LE_BITS_TO_1BYTE(__pstart, __bitoffset, __bitlen) \
126 (LE_P1BYTE_TO_HOST_1BYTE(__pstart) >> (__bitoffset)) & \
127 BIT_LEN_MASK_8(__bitlen) \
131 * Mask subfield (continuous bits in little-endian) of 4-byte value
132 * and return the result in 4-byte value in host byte ordering.
134 #define LE_BITS_CLEARED_TO_4BYTE(__pstart, __bitoffset, __bitlen) \
136 LE_P4BYTE_TO_HOST_4BYTE(__pstart) & \
137 (~BIT_OFFSET_LEN_MASK_32(__bitoffset, __bitlen)) \
139 #define LE_BITS_CLEARED_TO_2BYTE(__pstart, __bitoffset, __bitlen) \
141 LE_P2BYTE_TO_HOST_2BYTE(__pstart) & \
142 (~BIT_OFFSET_LEN_MASK_16(__bitoffset, __bitlen)) \
144 #define LE_BITS_CLEARED_TO_1BYTE(__pstart, __bitoffset, __bitlen) \
146 LE_P1BYTE_TO_HOST_1BYTE(__pstart) & \
147 (~BIT_OFFSET_LEN_MASK_8(__bitoffset, __bitlen)) \
151 * Set subfield of little-endian 4-byte value to specified value.
153 #define SET_BITS_TO_LE_4BYTE(__pstart, __bitoffset, __bitlen, __val) \
154 *((u32 *)(__pstart)) = \
156 LE_BITS_CLEARED_TO_4BYTE(__pstart, __bitoffset, __bitlen) | \
157 ((((u32)__val) & BIT_LEN_MASK_32(__bitlen)) << (__bitoffset)) \
160 #define SET_BITS_TO_LE_2BYTE(__pstart, __bitoffset, __bitlen, __val) \
161 *((u16 *)(__pstart)) = \
163 LE_BITS_CLEARED_TO_2BYTE(__pstart, __bitoffset, __bitlen) | \
164 ((((u16)__val) & BIT_LEN_MASK_16(__bitlen)) << (__bitoffset)) \
167 #define SET_BITS_TO_LE_1BYTE(__pstart, __bitoffset, __bitlen, __val) \
168 *((u8 *)(__pstart)) = EF1BYTE \
170 LE_BITS_CLEARED_TO_1BYTE(__pstart, __bitoffset, __bitlen) | \
171 ((((u8)__val) & BIT_LEN_MASK_8(__bitlen)) << (__bitoffset)) \
174 /* Get the N-bytes aligment offset from the current length */
175 #define N_BYTE_ALIGMENT(__value, __aligment) ((__aligment == 1) ? \
176 (__value) : (((__value + __aligment - 1) / __aligment) * __aligment))
178 #endif /* __BASIC_TYPES_H__ */