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5
6#ifndef _BRCMU_UTILS_H_
7#define _BRCMU_UTILS_H_
8
9#include <linux/skbuff.h>
10
11
12
13
14
15
16#define SPINWAIT(exp, us) { \
17 uint countdown = (us) + 9; \
18 while ((exp) && (countdown >= 10)) {\
19 udelay(10); \
20 countdown -= 10; \
21 } \
22}
23
24
25#define PKTQ_LEN_DEFAULT 128
26#define PKTQ_MAX_PREC 16
27
28#define BCME_STRLEN 64
29
30
31#define PKTBUFSZ 2048
32
33#ifndef setbit
34#ifndef NBBY
35#define NBBY 8
36#endif
37#define setbit(a, i) (((u8 *)a)[(i)/NBBY] |= 1<<((i)%NBBY))
38#define clrbit(a, i) (((u8 *)a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
39#define isset(a, i) (((const u8 *)a)[(i)/NBBY] & (1<<((i)%NBBY)))
40#define isclr(a, i) ((((const u8 *)a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
41#endif
42
43#define NBITS(type) (sizeof(type) * 8)
44#define NBITVAL(nbits) (1 << (nbits))
45#define MAXBITVAL(nbits) ((1 << (nbits)) - 1)
46#define NBITMASK(nbits) MAXBITVAL(nbits)
47#define MAXNBVAL(nbyte) MAXBITVAL((nbyte) * 8)
48
49
50#define CRC16_INIT_VALUE 0xffff
51#define CRC16_GOOD_VALUE 0xf0b8
52
53
54#define ETHER_ADDR_STR_LEN 18
55
56struct pktq_prec {
57 struct sk_buff_head skblist;
58 u16 max;
59};
60
61
62struct pktq {
63 u16 num_prec;
64 u16 hi_prec;
65 u16 max;
66 u16 len;
67
68
69
70
71 struct pktq_prec q[PKTQ_MAX_PREC];
72};
73
74
75
76static inline int pktq_plen(struct pktq *pq, int prec)
77{
78 return pq->q[prec].skblist.qlen;
79}
80
81static inline int pktq_pavail(struct pktq *pq, int prec)
82{
83 return pq->q[prec].max - pq->q[prec].skblist.qlen;
84}
85
86static inline bool pktq_pfull(struct pktq *pq, int prec)
87{
88 return pq->q[prec].skblist.qlen >= pq->q[prec].max;
89}
90
91static inline bool pktq_pempty(struct pktq *pq, int prec)
92{
93 return skb_queue_empty(&pq->q[prec].skblist);
94}
95
96static inline struct sk_buff *pktq_ppeek(struct pktq *pq, int prec)
97{
98 return skb_peek(&pq->q[prec].skblist);
99}
100
101static inline struct sk_buff *pktq_ppeek_tail(struct pktq *pq, int prec)
102{
103 return skb_peek_tail(&pq->q[prec].skblist);
104}
105
106struct sk_buff *brcmu_pktq_penq(struct pktq *pq, int prec, struct sk_buff *p);
107struct sk_buff *brcmu_pktq_penq_head(struct pktq *pq, int prec,
108 struct sk_buff *p);
109struct sk_buff *brcmu_pktq_pdeq(struct pktq *pq, int prec);
110struct sk_buff *brcmu_pktq_pdeq_tail(struct pktq *pq, int prec);
111struct sk_buff *brcmu_pktq_pdeq_match(struct pktq *pq, int prec,
112 bool (*match_fn)(struct sk_buff *p,
113 void *arg),
114 void *arg);
115
116
117struct sk_buff *brcmu_pkt_buf_get_skb(uint len);
118void brcmu_pkt_buf_free_skb(struct sk_buff *skb);
119
120
121
122void brcmu_pktq_pflush(struct pktq *pq, int prec, bool dir,
123 bool (*fn)(struct sk_buff *, void *), void *arg);
124
125
126
127int brcmu_pktq_mlen(struct pktq *pq, uint prec_bmp);
128struct sk_buff *brcmu_pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out);
129
130
131
132static inline int pktq_len(struct pktq *pq)
133{
134 return (int)pq->len;
135}
136
137static inline int pktq_max(struct pktq *pq)
138{
139 return (int)pq->max;
140}
141
142static inline int pktq_avail(struct pktq *pq)
143{
144 return (int)(pq->max - pq->len);
145}
146
147static inline bool pktq_full(struct pktq *pq)
148{
149 return pq->len >= pq->max;
150}
151
152static inline bool pktq_empty(struct pktq *pq)
153{
154 return pq->len == 0;
155}
156
157void brcmu_pktq_init(struct pktq *pq, int num_prec, int max_len);
158
159struct sk_buff *brcmu_pktq_peek_tail(struct pktq *pq, int *prec_out);
160void brcmu_pktq_flush(struct pktq *pq, bool dir,
161 bool (*fn)(struct sk_buff *, void *), void *arg);
162
163
164
165struct ipv4_addr;
166
167
168
169
170
171
172static inline void brcmu_maskset32(u32 *var, u32 mask, u8 shift, u32 value)
173{
174 value = (value << shift) & mask;
175 *var = (*var & ~mask) | value;
176}
177static inline u32 brcmu_maskget32(u32 var, u32 mask, u8 shift)
178{
179 return (var & mask) >> shift;
180}
181static inline void brcmu_maskset16(u16 *var, u16 mask, u8 shift, u16 value)
182{
183 value = (value << shift) & mask;
184 *var = (*var & ~mask) | value;
185}
186static inline u16 brcmu_maskget16(u16 var, u16 mask, u8 shift)
187{
188 return (var & mask) >> shift;
189}
190
191
192
193#ifdef DEBUG
194void brcmu_prpkt(const char *msg, struct sk_buff *p0);
195#else
196#define brcmu_prpkt(a, b)
197#endif
198
199#ifdef DEBUG
200__printf(3, 4)
201void brcmu_dbg_hex_dump(const void *data, size_t size, const char *fmt, ...);
202#else
203__printf(3, 4)
204static inline
205void brcmu_dbg_hex_dump(const void *data, size_t size, const char *fmt, ...)
206{
207}
208#endif
209
210#define BRCMU_BOARDREV_LEN 8
211#define BRCMU_DOTREV_LEN 16
212
213char *brcmu_boardrev_str(u32 brev, char *buf);
214char *brcmu_dotrev_str(u32 dotrev, char *buf);
215
216#endif
217