1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
2 /* Copyright(c) 2007 - 2011 Realtek Corporation. */
4 #ifndef __BASIC_TYPES_H__
5 #define __BASIC_TYPES_H__
10 #include <linux/types.h>
13 typedef void (*proc_t)(void *);
15 #define FIELD_OFFSET(s, field) ((ssize_t)&((s *)(0))->field)
17 #define MEM_ALIGNMENT_OFFSET (sizeof(size_t))
18 #define MEM_ALIGNMENT_PADDING (sizeof(size_t) - 1)
21 /* TODO: Macros Below are Sync from SD7-Driver. It is necessary
22 * 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.
31 /* Convert little data endian to host ordering */
32 #define EF1BYTE(_val) \
34 #define EF2BYTE(_val) \
36 #define EF4BYTE(_val) \
39 /* Read data from memory */
40 #define READEF1BYTE(_ptr) \
41 EF1BYTE(*((u8 *)(_ptr)))
42 /* Read le16 data from memory and convert to host ordering */
43 #define READEF2BYTE(_ptr) \
45 #define READEF4BYTE(_ptr) \
48 /* Write data to memory */
49 #define WRITEEF1BYTE(_ptr, _val) \
51 (*((u8 *)(_ptr))) = EF1BYTE(_val) \
53 /* Write le data to memory in host ordering */
54 #define WRITEEF2BYTE(_ptr, _val) \
56 (*((u16 *)(_ptr))) = EF2BYTE(_val) \
59 #define WRITEEF4BYTE(_ptr, _val) \
61 (*((u32 *)(_ptr))) = EF2BYTE(_val) \
66 * BIT_LEN_MASK_32(0) => 0x00000000
67 * BIT_LEN_MASK_32(1) => 0x00000001
68 * BIT_LEN_MASK_32(2) => 0x00000003
69 * BIT_LEN_MASK_32(32) => 0xFFFFFFFF
71 #define BIT_LEN_MASK_32(__bitlen) \
72 (0xFFFFFFFF >> (32 - (__bitlen)))
73 #define BIT_LEN_MASK_16(__bitlen) \
74 (0xFFFF >> (16 - (__bitlen)))
75 #define BIT_LEN_MASK_8(__bitlen) \
76 (0xFF >> (8 - (__bitlen)))
78 /* Create an offset bit mask
80 * BIT_OFFSET_LEN_MASK_32(0, 2) => 0x00000003
81 * BIT_OFFSET_LEN_MASK_32(16, 2) => 0x00030000
83 #define BIT_OFFSET_LEN_MASK_32(__bitoffset, __bitlen) \
84 (BIT_LEN_MASK_32(__bitlen) << (__bitoffset))
85 #define BIT_OFFSET_LEN_MASK_16(__bitoffset, __bitlen) \
86 (BIT_LEN_MASK_16(__bitlen) << (__bitoffset))
87 #define BIT_OFFSET_LEN_MASK_8(__bitoffset, __bitlen) \
88 (BIT_LEN_MASK_8(__bitlen) << (__bitoffset))
91 * Return 4-byte value in host byte ordering from
92 * 4-byte pointer in little-endian system.
94 #define LE_P4BYTE_TO_HOST_4BYTE(__pstart) \
95 (EF4BYTE(*((__le32 *)(__pstart))))
96 #define LE_P2BYTE_TO_HOST_2BYTE(__pstart) \
97 (EF2BYTE(*((__le16 *)(__pstart))))
98 #define LE_P1BYTE_TO_HOST_1BYTE(__pstart) \
99 (EF1BYTE(*((u8 *)(__pstart))))
102 Translate subfield (continuous bits in little-endian) of 4-byte
103 value to host byte ordering.*/
104 #define LE_BITS_TO_4BYTE(__pstart, __bitoffset, __bitlen) \
106 (LE_P4BYTE_TO_HOST_4BYTE(__pstart) >> (__bitoffset)) & \
107 BIT_LEN_MASK_32(__bitlen) \
109 #define LE_BITS_TO_2BYTE(__pstart, __bitoffset, __bitlen) \
111 (LE_P2BYTE_TO_HOST_2BYTE(__pstart) >> (__bitoffset)) & \
112 BIT_LEN_MASK_16(__bitlen) \
114 #define LE_BITS_TO_1BYTE(__pstart, __bitoffset, __bitlen) \
116 (LE_P1BYTE_TO_HOST_1BYTE(__pstart) >> (__bitoffset)) & \
117 BIT_LEN_MASK_8(__bitlen) \
121 * Mask subfield (continuous bits in little-endian) of 4-byte value
122 * and return the result in 4-byte value in host byte ordering.
124 #define LE_BITS_CLEARED_TO_4BYTE(__pstart, __bitoffset, __bitlen) \
126 LE_P4BYTE_TO_HOST_4BYTE(__pstart) & \
127 (~BIT_OFFSET_LEN_MASK_32(__bitoffset, __bitlen)) \
129 #define LE_BITS_CLEARED_TO_2BYTE(__pstart, __bitoffset, __bitlen) \
131 LE_P2BYTE_TO_HOST_2BYTE(__pstart) & \
132 (~BIT_OFFSET_LEN_MASK_16(__bitoffset, __bitlen)) \
134 #define LE_BITS_CLEARED_TO_1BYTE(__pstart, __bitoffset, __bitlen) \
136 LE_P1BYTE_TO_HOST_1BYTE(__pstart) & \
137 (~BIT_OFFSET_LEN_MASK_8(__bitoffset, __bitlen)) \
141 * Set subfield of little-endian 4-byte value to specified value.
143 #define SET_BITS_TO_LE_4BYTE(__pstart, __bitoffset, __bitlen, __val) \
144 *((u32 *)(__pstart)) = \
146 LE_BITS_CLEARED_TO_4BYTE(__pstart, __bitoffset, __bitlen) | \
147 ((((u32)__val) & BIT_LEN_MASK_32(__bitlen)) << (__bitoffset)) \
150 #define SET_BITS_TO_LE_2BYTE(__pstart, __bitoffset, __bitlen, __val) \
151 *((u16 *)(__pstart)) = \
153 LE_BITS_CLEARED_TO_2BYTE(__pstart, __bitoffset, __bitlen) | \
154 ((((u16)__val) & BIT_LEN_MASK_16(__bitlen)) << (__bitoffset)) \
157 #define SET_BITS_TO_LE_1BYTE(__pstart, __bitoffset, __bitlen, __val) \
158 *((u8 *)(__pstart)) = EF1BYTE \
160 LE_BITS_CLEARED_TO_1BYTE(__pstart, __bitoffset, __bitlen) | \
161 ((((u8)__val) & BIT_LEN_MASK_8(__bitlen)) << (__bitoffset)) \
164 /* Get the N-bytes aligment offset from the current length */
165 #define N_BYTE_ALIGMENT(__value, __aligment) ((__aligment == 1) ? \
166 (__value) : (((__value + __aligment - 1) / __aligment) * __aligment))
168 #endif /* __BASIC_TYPES_H__ */