This source file includes following definitions.
- rocker_tlv_ok
- rocker_tlv_attr_size
- rocker_tlv_total_size
- rocker_tlv_padlen
- rocker_tlv_type
- rocker_tlv_data
- rocker_tlv_len
- rocker_tlv_get_u8
- rocker_tlv_get_u16
- rocker_tlv_get_be16
- rocker_tlv_get_u32
- rocker_tlv_get_u64
- rocker_tlv_parse_nested
- rocker_tlv_parse_desc
- rocker_tlv_start
- rocker_tlv_put_u8
- rocker_tlv_put_u16
- rocker_tlv_put_be16
- rocker_tlv_put_u32
- rocker_tlv_put_be32
- rocker_tlv_put_u64
- rocker_tlv_nest_start
- rocker_tlv_nest_end
- rocker_tlv_nest_cancel
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8 #ifndef _ROCKER_TLV_H
9 #define _ROCKER_TLV_H
10
11 #include <linux/types.h>
12
13 #include "rocker_hw.h"
14 #include "rocker.h"
15
16 #define ROCKER_TLV_ALIGNTO 8U
17 #define ROCKER_TLV_ALIGN(len) \
18 (((len) + ROCKER_TLV_ALIGNTO - 1) & ~(ROCKER_TLV_ALIGNTO - 1))
19 #define ROCKER_TLV_HDRLEN ROCKER_TLV_ALIGN(sizeof(struct rocker_tlv))
20
21
22
23
24
25
26
27
28
29 static inline struct rocker_tlv *rocker_tlv_next(const struct rocker_tlv *tlv,
30 int *remaining)
31 {
32 int totlen = ROCKER_TLV_ALIGN(tlv->len);
33
34 *remaining -= totlen;
35 return (struct rocker_tlv *) ((char *) tlv + totlen);
36 }
37
38 static inline int rocker_tlv_ok(const struct rocker_tlv *tlv, int remaining)
39 {
40 return remaining >= (int) ROCKER_TLV_HDRLEN &&
41 tlv->len >= ROCKER_TLV_HDRLEN &&
42 tlv->len <= remaining;
43 }
44
45 #define rocker_tlv_for_each(pos, head, len, rem) \
46 for (pos = head, rem = len; \
47 rocker_tlv_ok(pos, rem); \
48 pos = rocker_tlv_next(pos, &(rem)))
49
50 #define rocker_tlv_for_each_nested(pos, tlv, rem) \
51 rocker_tlv_for_each(pos, rocker_tlv_data(tlv), \
52 rocker_tlv_len(tlv), rem)
53
54 static inline int rocker_tlv_attr_size(int payload)
55 {
56 return ROCKER_TLV_HDRLEN + payload;
57 }
58
59 static inline int rocker_tlv_total_size(int payload)
60 {
61 return ROCKER_TLV_ALIGN(rocker_tlv_attr_size(payload));
62 }
63
64 static inline int rocker_tlv_padlen(int payload)
65 {
66 return rocker_tlv_total_size(payload) - rocker_tlv_attr_size(payload);
67 }
68
69 static inline int rocker_tlv_type(const struct rocker_tlv *tlv)
70 {
71 return tlv->type;
72 }
73
74 static inline void *rocker_tlv_data(const struct rocker_tlv *tlv)
75 {
76 return (char *) tlv + ROCKER_TLV_HDRLEN;
77 }
78
79 static inline int rocker_tlv_len(const struct rocker_tlv *tlv)
80 {
81 return tlv->len - ROCKER_TLV_HDRLEN;
82 }
83
84 static inline u8 rocker_tlv_get_u8(const struct rocker_tlv *tlv)
85 {
86 return *(u8 *) rocker_tlv_data(tlv);
87 }
88
89 static inline u16 rocker_tlv_get_u16(const struct rocker_tlv *tlv)
90 {
91 return *(u16 *) rocker_tlv_data(tlv);
92 }
93
94 static inline __be16 rocker_tlv_get_be16(const struct rocker_tlv *tlv)
95 {
96 return *(__be16 *) rocker_tlv_data(tlv);
97 }
98
99 static inline u32 rocker_tlv_get_u32(const struct rocker_tlv *tlv)
100 {
101 return *(u32 *) rocker_tlv_data(tlv);
102 }
103
104 static inline u64 rocker_tlv_get_u64(const struct rocker_tlv *tlv)
105 {
106 return *(u64 *) rocker_tlv_data(tlv);
107 }
108
109 void rocker_tlv_parse(const struct rocker_tlv **tb, int maxtype,
110 const char *buf, int buf_len);
111
112 static inline void rocker_tlv_parse_nested(const struct rocker_tlv **tb,
113 int maxtype,
114 const struct rocker_tlv *tlv)
115 {
116 rocker_tlv_parse(tb, maxtype, rocker_tlv_data(tlv),
117 rocker_tlv_len(tlv));
118 }
119
120 static inline void
121 rocker_tlv_parse_desc(const struct rocker_tlv **tb, int maxtype,
122 const struct rocker_desc_info *desc_info)
123 {
124 rocker_tlv_parse(tb, maxtype, desc_info->data,
125 desc_info->desc->tlv_size);
126 }
127
128 static inline struct rocker_tlv *
129 rocker_tlv_start(struct rocker_desc_info *desc_info)
130 {
131 return (struct rocker_tlv *) ((char *) desc_info->data +
132 desc_info->tlv_size);
133 }
134
135 int rocker_tlv_put(struct rocker_desc_info *desc_info,
136 int attrtype, int attrlen, const void *data);
137
138 static inline int
139 rocker_tlv_put_u8(struct rocker_desc_info *desc_info, int attrtype, u8 value)
140 {
141 u8 tmp = value;
142
143 return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &tmp);
144 }
145
146 static inline int
147 rocker_tlv_put_u16(struct rocker_desc_info *desc_info, int attrtype, u16 value)
148 {
149 u16 tmp = value;
150
151 return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &tmp);
152 }
153
154 static inline int
155 rocker_tlv_put_be16(struct rocker_desc_info *desc_info, int attrtype, __be16 value)
156 {
157 __be16 tmp = value;
158
159 return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &tmp);
160 }
161
162 static inline int
163 rocker_tlv_put_u32(struct rocker_desc_info *desc_info, int attrtype, u32 value)
164 {
165 u32 tmp = value;
166
167 return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &tmp);
168 }
169
170 static inline int
171 rocker_tlv_put_be32(struct rocker_desc_info *desc_info, int attrtype, __be32 value)
172 {
173 __be32 tmp = value;
174
175 return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &tmp);
176 }
177
178 static inline int
179 rocker_tlv_put_u64(struct rocker_desc_info *desc_info, int attrtype, u64 value)
180 {
181 u64 tmp = value;
182
183 return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &tmp);
184 }
185
186 static inline struct rocker_tlv *
187 rocker_tlv_nest_start(struct rocker_desc_info *desc_info, int attrtype)
188 {
189 struct rocker_tlv *start = rocker_tlv_start(desc_info);
190
191 if (rocker_tlv_put(desc_info, attrtype, 0, NULL) < 0)
192 return NULL;
193
194 return start;
195 }
196
197 static inline void rocker_tlv_nest_end(struct rocker_desc_info *desc_info,
198 struct rocker_tlv *start)
199 {
200 start->len = (char *) rocker_tlv_start(desc_info) - (char *) start;
201 }
202
203 static inline void rocker_tlv_nest_cancel(struct rocker_desc_info *desc_info,
204 const struct rocker_tlv *start)
205 {
206 desc_info->tlv_size = (const char *) start - desc_info->data;
207 }
208
209 #endif