1 /* SPDX-License-Identifier: GPL-2.0 */
2 /******************************************************************************
4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
6 ******************************************************************************/
7 #ifndef __BASIC_TYPES_H__
8 #define __BASIC_TYPES_H__
14 #include <linux/types.h>
16 #define FIELD_OFFSET(s, field) ((__kernel_ssize_t)&((s *)(0))->field)
18 #define SIZE_PTR __kernel_size_t
19 #define SSIZE_PTR __kernel_ssize_t
21 /* port from fw by thomas */
22 /* TODO: Belows are Sync from SD7-Driver. It is necessary to check correctness */
25 *Call endian free function when
26 * 1. Read/write packet content.
27 * 2. Before write integer to IO.
28 * 3. After read integer from IO.
32 /* Byte Swapping routine. */
35 #define EF2Byte le16_to_cpu
36 #define EF4Byte le32_to_cpu
38 /* Convert little data endian to host ordering */
39 #define EF1BYTE(_val) \
41 #define EF2BYTE(_val) \
43 #define EF4BYTE(_val) \
46 /* Read data from memory */
47 #define READEF1BYTE(_ptr) \
48 EF1BYTE(*((u8 *)(_ptr)))
49 /* Read le16 data from memory and convert to host ordering */
50 #define READEF2BYTE(_ptr) \
52 #define READEF4BYTE(_ptr) \
55 /* Write data to memory */
56 #define WRITEEF1BYTE(_ptr, _val) \
58 (*((u8 *)(_ptr))) = EF1BYTE(_val); \
60 /* Write le data to memory in host ordering */
61 #define WRITEEF2BYTE(_ptr, _val) \
63 (*((u16 *)(_ptr))) = EF2BYTE(_val); \
66 #define WRITEEF4BYTE(_ptr, _val) \
68 (*((u32 *)(_ptr))) = EF2BYTE(_val); \
73 * BIT_LEN_MASK_32(0) => 0x00000000
74 * BIT_LEN_MASK_32(1) => 0x00000001
75 * BIT_LEN_MASK_32(2) => 0x00000003
76 * BIT_LEN_MASK_32(32) => 0xFFFFFFFF
78 #define BIT_LEN_MASK_32(__bitlen) \
79 (0xFFFFFFFF >> (32 - (__bitlen)))
80 #define BIT_LEN_MASK_16(__bitlen) \
81 (0xFFFF >> (16 - (__bitlen)))
82 #define BIT_LEN_MASK_8(__bitlen) \
83 (0xFF >> (8 - (__bitlen)))
85 /* Create an offset bit mask
87 * BIT_OFFSET_LEN_MASK_32(0, 2) => 0x00000003
88 * BIT_OFFSET_LEN_MASK_32(16, 2) => 0x00030000
90 #define BIT_OFFSET_LEN_MASK_32(__bitoffset, __bitlen) \
91 (BIT_LEN_MASK_32(__bitlen) << (__bitoffset))
92 #define BIT_OFFSET_LEN_MASK_16(__bitoffset, __bitlen) \
93 (BIT_LEN_MASK_16(__bitlen) << (__bitoffset))
94 #define BIT_OFFSET_LEN_MASK_8(__bitoffset, __bitlen) \
95 (BIT_LEN_MASK_8(__bitlen) << (__bitoffset))
98 * Return 4-byte value in host byte ordering from
99 * 4-byte pointer in little-endian system.
101 #define LE_P4BYTE_TO_HOST_4BYTE(__pstart) \
102 (EF4BYTE(*((__le32 *)(__pstart))))
103 #define LE_P2BYTE_TO_HOST_2BYTE(__pstart) \
104 (EF2BYTE(*((__le16 *)(__pstart))))
105 #define LE_P1BYTE_TO_HOST_1BYTE(__pstart) \
106 (EF1BYTE(*((u8 *)(__pstart))))
110 /* Translate subfield (continuous bits in little-endian) of 4-byte value in litten byte to */
111 /* 4-byte value in host byte ordering. */
113 #define LE_BITS_TO_4BYTE(__pstart, __bitoffset, __bitlen) \
115 (LE_P4BYTE_TO_HOST_4BYTE(__pstart) >> (__bitoffset)) & \
116 BIT_LEN_MASK_32(__bitlen) \
118 #define LE_BITS_TO_2BYTE(__pstart, __bitoffset, __bitlen) \
120 (LE_P2BYTE_TO_HOST_2BYTE(__pstart) >> (__bitoffset)) & \
121 BIT_LEN_MASK_16(__bitlen) \
123 #define LE_BITS_TO_1BYTE(__pstart, __bitoffset, __bitlen) \
125 (LE_P1BYTE_TO_HOST_1BYTE(__pstart) >> (__bitoffset)) & \
126 BIT_LEN_MASK_8(__bitlen) \
131 /* Mask subfield (continuous bits in little-endian) of 4-byte value in litten byte oredering */
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)) \
152 /* Set subfield of little-endian 4-byte value to specified value. */
154 #define SET_BITS_TO_LE_4BYTE(__pstart, __bitoffset, __bitlen, __val) \
155 *((u32 *)(__pstart)) = \
157 LE_BITS_CLEARED_TO_4BYTE(__pstart, __bitoffset, __bitlen) | \
158 ((((u32)__val) & BIT_LEN_MASK_32(__bitlen)) << (__bitoffset)) \
161 #define SET_BITS_TO_LE_2BYTE(__pstart, __bitoffset, __bitlen, __val) \
162 *((u16 *)(__pstart)) = \
164 LE_BITS_CLEARED_TO_2BYTE(__pstart, __bitoffset, __bitlen) | \
165 ((((u16)__val) & BIT_LEN_MASK_16(__bitlen)) << (__bitoffset)) \
168 #define SET_BITS_TO_LE_1BYTE(__pstart, __bitoffset, __bitlen, __val) \
169 *((u8 *)(__pstart)) = EF1BYTE \
171 LE_BITS_CLEARED_TO_1BYTE(__pstart, __bitoffset, __bitlen) | \
172 ((((u8)__val) & BIT_LEN_MASK_8(__bitlen)) << (__bitoffset)) \
175 #define LE_BITS_CLEARED_TO_1BYTE_8BIT(__pStart, __BitOffset, __BitLen) \
177 LE_P1BYTE_TO_HOST_1BYTE(__pStart) \
180 #define SET_BITS_TO_LE_1BYTE_8BIT(__pStart, __BitOffset, __BitLen, __Value) \
182 *((u8 *)(__pStart)) = \
184 LE_BITS_CLEARED_TO_1BYTE_8BIT(__pStart, __BitOffset, __BitLen) \
190 /* Get the N-bytes alignent offset from the current length */
191 #define N_BYTE_ALIGMENT(__Value, __Aligment) ((__Aligment == 1) ? (__Value) : (((__Value + __Aligment - 1) / __Aligment) * __Aligment))
193 #define TEST_FLAG(__Flag, __testFlag) (((__Flag) & (__testFlag)) != 0)
194 #define SET_FLAG(__Flag, __setFlag) ((__Flag) |= __setFlag)
195 #define CLEAR_FLAG(__Flag, __clearFlag) ((__Flag) &= ~(__clearFlag))
196 #define CLEAR_FLAGS(__Flag) ((__Flag) = 0)
197 #define TEST_FLAGS(__Flag, __testFlags) (((__Flag) & (__testFlags)) == (__testFlags))
199 #endif /* __BASIC_TYPES_H__ */