1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
|
/*
* ---------------------------------------------------------------------------
* FILE: os.c
*
* PURPOSE:
* Routines to fulfil the OS-abstraction for the HIP lib.
* It is part of the porting exercise.
*
* Copyright (C) 2005-2009 by Cambridge Silicon Radio Ltd.
*
* Refer to LICENSE.txt included with this source code for details on
* the license terms.
*
* ---------------------------------------------------------------------------
*/
/**
* The HIP lib OS abstraction consists of the implementation
* of the functions in this file. It is part of the porting exercise.
*/
#include "unifi_priv.h"
/*
* ---------------------------------------------------------------------------
* unifi_net_data_malloc
*
* Allocate an OS specific net data buffer of "size" bytes.
* The bulk_data_slot.os_data_ptr must be initialised to point
* to the buffer allocated. The bulk_data_slot.length must be
* initialised to the requested size, zero otherwise.
* The bulk_data_slot.os_net_buf_ptr can be initialised to
* an OS specific pointer to be used in the unifi_net_data_free().
*
*
* Arguments:
* ospriv Pointer to device private context struct.
* bulk_data_slot Pointer to the bulk data structure to initialise.
* size Size of the buffer to be allocated.
*
* Returns:
* CSR_RESULT_SUCCESS on success, CSR_RESULT_FAILURE otherwise.
* ---------------------------------------------------------------------------
*/
CsrResult
unifi_net_data_malloc(void *ospriv, bulk_data_desc_t *bulk_data_slot, unsigned int size)
{
struct sk_buff *skb;
unifi_priv_t *priv = (unifi_priv_t*)ospriv;
int rounded_length;
if (priv->card_info.sdio_block_size == 0) {
unifi_error(priv, "unifi_net_data_malloc: Invalid SDIO block size\n");
return CSR_RESULT_FAILURE;
}
rounded_length = (size + priv->card_info.sdio_block_size - 1) & ~(priv->card_info.sdio_block_size - 1);
/*
* (ETH_HLEN + 2) bytes tailroom for header manipulation
* CSR_WIFI_ALIGN_BYTES bytes headroom for alignment manipulation
*/
skb = dev_alloc_skb(rounded_length + 2 + ETH_HLEN + CSR_WIFI_ALIGN_BYTES);
if (! skb) {
unifi_error(ospriv, "alloc_skb failed.\n");
bulk_data_slot->os_net_buf_ptr = NULL;
bulk_data_slot->net_buf_length = 0;
bulk_data_slot->os_data_ptr = NULL;
bulk_data_slot->data_length = 0;
return CSR_RESULT_FAILURE;
}
bulk_data_slot->os_net_buf_ptr = (const unsigned char*)skb;
bulk_data_slot->net_buf_length = rounded_length + 2 + ETH_HLEN + CSR_WIFI_ALIGN_BYTES;
bulk_data_slot->os_data_ptr = (const void*)skb->data;
bulk_data_slot->data_length = size;
return CSR_RESULT_SUCCESS;
} /* unifi_net_data_malloc() */
/*
* ---------------------------------------------------------------------------
* unifi_net_data_free
*
* Free an OS specific net data buffer.
* The bulk_data_slot.length must be initialised to 0.
*
*
* Arguments:
* ospriv Pointer to device private context struct.
* bulk_data_slot Pointer to the bulk data structure that
* holds the data to be freed.
*
* Returns:
* None.
* ---------------------------------------------------------------------------
*/
void
unifi_net_data_free(void *ospriv, bulk_data_desc_t *bulk_data_slot)
{
struct sk_buff *skb;
CSR_UNUSED(ospriv);
skb = (struct sk_buff *)bulk_data_slot->os_net_buf_ptr;
dev_kfree_skb(skb);
bulk_data_slot->net_buf_length = 0;
bulk_data_slot->data_length = 0;
bulk_data_slot->os_data_ptr = bulk_data_slot->os_net_buf_ptr = NULL;
} /* unifi_net_data_free() */
/*
* ---------------------------------------------------------------------------
* unifi_net_dma_align
*
* DMA align an OS specific net data buffer.
* The buffer must be empty.
*
*
* Arguments:
* ospriv Pointer to device private context struct.
* bulk_data_slot Pointer to the bulk data structure that
* holds the data to be aligned.
*
* Returns:
* None.
* ---------------------------------------------------------------------------
*/
CsrResult
unifi_net_dma_align(void *ospriv, bulk_data_desc_t *bulk_data_slot)
{
struct sk_buff *skb;
unsigned long buf_address;
int offset;
unifi_priv_t *priv = (unifi_priv_t*)ospriv;
if ((bulk_data_slot == NULL) || (CSR_WIFI_ALIGN_BYTES == 0)) {
return CSR_RESULT_SUCCESS;
}
if ((bulk_data_slot->os_data_ptr == NULL) || (bulk_data_slot->data_length == 0)) {
return CSR_RESULT_SUCCESS;
}
buf_address = (unsigned long)(bulk_data_slot->os_data_ptr) & (CSR_WIFI_ALIGN_BYTES - 1);
unifi_trace(priv, UDBG5,
"unifi_net_dma_align: Allign buffer (0x%p) by %d bytes\n",
bulk_data_slot->os_data_ptr, buf_address);
offset = CSR_WIFI_ALIGN_BYTES - buf_address;
if (offset < 0) {
unifi_error(priv, "unifi_net_dma_align: Failed (offset=%d)\n", offset);
return CSR_RESULT_FAILURE;
}
skb = (struct sk_buff*)(bulk_data_slot->os_net_buf_ptr);
skb_reserve(skb, offset);
bulk_data_slot->os_net_buf_ptr = (const unsigned char*)skb;
bulk_data_slot->os_data_ptr = (const void*)(skb->data);
return CSR_RESULT_SUCCESS;
} /* unifi_net_dma_align() */
#ifdef ANDROID_TIMESTAMP
static volatile unsigned int printk_cpu = UINT_MAX;
char tbuf[30];
char* print_time(void )
{
unsigned long long t;
unsigned long nanosec_rem;
t = cpu_clock(printk_cpu);
nanosec_rem = do_div(t, 1000000000);
sprintf(tbuf, "[%5lu.%06lu] ",
(unsigned long) t,
nanosec_rem / 1000);
return tbuf;
}
#endif
/* Module parameters */
extern int unifi_debug;
#ifdef UNIFI_DEBUG
#define DEBUG_BUFFER_SIZE 120
#define FORMAT_TRACE(_s, _len, _args, _fmt) \
do { \
va_start(_args, _fmt); \
_len += vsnprintf(&(_s)[_len], \
(DEBUG_BUFFER_SIZE - _len), \
_fmt, _args); \
va_end(_args); \
if (_len >= DEBUG_BUFFER_SIZE) { \
(_s)[DEBUG_BUFFER_SIZE - 2] = '\n'; \
(_s)[DEBUG_BUFFER_SIZE - 1] = 0; \
} \
} while (0)
void
unifi_error(void* ospriv, const char *fmt, ...)
{
unifi_priv_t *priv = (unifi_priv_t*) ospriv;
char s[DEBUG_BUFFER_SIZE];
va_list args;
unsigned int len;
#ifdef ANDROID_TIMESTAMP
if (priv != NULL) {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "%s unifi%d: ", print_time(), priv->instance);
} else {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "%s unifi: ", print_time());
}
#else
if (priv != NULL) {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "unifi%d: ", priv->instance);
} else {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "unifi: ");
}
#endif /* ANDROID_TIMESTAMP */
FORMAT_TRACE(s, len, args, fmt);
printk("%s", s);
}
void
unifi_warning(void* ospriv, const char *fmt, ...)
{
unifi_priv_t *priv = (unifi_priv_t*) ospriv;
char s[DEBUG_BUFFER_SIZE];
va_list args;
unsigned int len;
#ifdef ANDROID_TIMESTAMP
if (priv != NULL) {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_WARNING "%s unifi%d: ", print_time(), priv->instance);
} else {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_WARNING "%s unifi: ", print_time());
}
#else
if (priv != NULL) {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_WARNING "unifi%d: ", priv->instance);
} else {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_WARNING "unifi: ");
}
#endif /* ANDROID_TIMESTAMP */
FORMAT_TRACE(s, len, args, fmt);
printk("%s", s);
}
void
unifi_notice(void* ospriv, const char *fmt, ...)
{
unifi_priv_t *priv = (unifi_priv_t*) ospriv;
char s[DEBUG_BUFFER_SIZE];
va_list args;
unsigned int len;
#ifdef ANDROID_TIMESTAMP
if (priv != NULL) {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_NOTICE "%s unifi%d: ", print_time(), priv->instance);
} else {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_NOTICE "%s unifi: ", print_time());
}
#else
if (priv != NULL) {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_NOTICE "unifi%d: ", priv->instance);
} else {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_NOTICE "unifi: ");
}
#endif /* ANDROID_TIMESTAMP */
FORMAT_TRACE(s, len, args, fmt);
printk("%s", s);
}
void
unifi_info(void* ospriv, const char *fmt, ...)
{
unifi_priv_t *priv = (unifi_priv_t*) ospriv;
char s[DEBUG_BUFFER_SIZE];
va_list args;
unsigned int len;
#ifdef ANDROID_TIMESTAMP
if (priv != NULL) {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_INFO "%s unifi%d: ", print_time(), priv->instance);
} else {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_INFO "%s unifi: ", print_time());
}
#else
if (priv != NULL) {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_INFO "unifi%d: ", priv->instance);
} else {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_INFO "unifi: ");
}
#endif /* ANDROID_TIMESTAMP */
FORMAT_TRACE(s, len, args, fmt);
printk("%s", s);
}
/* debugging */
void
unifi_trace(void* ospriv, int level, const char *fmt, ...)
{
unifi_priv_t *priv = (unifi_priv_t*) ospriv;
char s[DEBUG_BUFFER_SIZE];
va_list args;
unsigned int len;
if (unifi_debug >= level) {
#ifdef ANDROID_TIMESTAMP
if (priv != NULL) {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "%s unifi%d: ", print_time(), priv->instance);
} else {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "%s unifi: ", print_time());
}
#else
if (priv != NULL) {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "unifi%d: ", priv->instance);
} else {
len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "unifi: ");
}
#endif /* ANDROID_TIMESTAMP */
FORMAT_TRACE(s, len, args, fmt);
printk("%s", s);
}
}
#else
void
unifi_error_nop(void* ospriv, const char *fmt, ...)
{
}
void
unifi_trace_nop(void* ospriv, int level, const char *fmt, ...)
{
}
#endif /* UNIFI_DEBUG */
/*
* ---------------------------------------------------------------------------
*
* Debugging support.
*
* ---------------------------------------------------------------------------
*/
#ifdef UNIFI_DEBUG
/* Memory dump with level filter controlled by unifi_debug */
void
unifi_dump(void *ospriv, int level, const char *msg, void *mem, u16 len)
{
unifi_priv_t *priv = (unifi_priv_t*) ospriv;
if (unifi_debug >= level) {
#ifdef ANDROID_TIMESTAMP
if (priv != NULL) {
printk(KERN_ERR "%s unifi%d: --- dump: %s ---\n", print_time(), priv->instance, msg ? msg : "");
} else {
printk(KERN_ERR "%s unifi: --- dump: %s ---\n", print_time(), msg ? msg : "");
}
#else
if (priv != NULL) {
printk(KERN_ERR "unifi%d: --- dump: %s ---\n", priv->instance, msg ? msg : "");
} else {
printk(KERN_ERR "unifi: --- dump: %s ---\n", msg ? msg : "");
}
#endif /* ANDROID_TIMESTAMP */
dump(mem, len);
if (priv != NULL) {
printk(KERN_ERR "unifi%d: --- end of dump ---\n", priv->instance);
} else {
printk(KERN_ERR "unifi: --- end of dump ---\n");
}
}
}
/* Memory dump that appears all the time, use sparingly */
void
dump(void *mem, u16 len)
{
int i, col = 0;
unsigned char *pdata = (unsigned char *)mem;
#ifdef ANDROID_TIMESTAMP
printk("timestamp %s \n", print_time());
#endif /* ANDROID_TIMESTAMP */
if (mem == NULL) {
printk("(null dump)\n");
return;
}
for (i = 0; i < len; i++) {
if (col == 0) {
printk("0x%02X: ", i);
}
printk(" %02X", pdata[i]);
if (++col == 16) {
printk("\n");
col = 0;
}
}
if (col) {
printk("\n");
}
} /* dump() */
void
dump16(void *mem, u16 len)
{
int i, col=0;
unsigned short *p = (unsigned short *)mem;
#ifdef ANDROID_TIMESTAMP
printk("timestamp %s \n", print_time());
#endif /* ANDROID_TIMESTAMP */
for (i = 0; i < len; i+=2) {
if (col == 0) {
printk("0x%02X: ", i);
}
printk(" %04X", *p++);
if (++col == 8) {
printk("\n");
col = 0;
}
}
if (col) {
printk("\n");
}
}
#ifdef CSR_WIFI_HIP_DEBUG_OFFLINE
void
dump_str(void *mem, u16 len)
{
int i, col = 0;
unsigned char *pdata = (unsigned char *)mem;
#ifdef ANDROID_TIMESTAMP
printk("timestamp %s \n", print_time());
#endif /* ANDROID_TIMESTAMP */
for (i = 0; i < len; i++) {
printk("%c", pdata[i]);
}
if (col) {
printk("\n");
}
} /* dump_str() */
#endif /* CSR_ONLY_NOTES */
#endif /* UNIFI_DEBUG */
/* ---------------------------------------------------------------------------
* - End -
* ------------------------------------------------------------------------- */
|
