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URL https://opencores.org/ocsvn/apbtoaes128/apbtoaes128/trunk

Subversion Repositories apbtoaes128

[/] [apbtoaes128/] [trunk/] [pli/] [bfm_cbc/] [aes_bfm_encryption_cbc.h] - Blame information for rev 12

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1 5 redbear
//////////////////////////////////////////////////////////////////
2
////
3
////
4
////    AES CORE BLOCK
5
////
6
////
7
////
8
//// This file is part of the APB to AES128 project
9
////
10
//// http://www.opencores.org/cores/apbtoaes128/
11
////
12
////
13
////
14
//// Description
15
////
16
//// Implementation of APB IP core according to
17
////
18
//// aes128_spec IP core specification document.
19
////
20
////
21
////
22
//// To Do: Things are right here but always all block can suffer changes
23
////
24
////
25
////
26
////
27
////
28
//// Author(s): - Felipe Fernandes Da Costa, fefe2560@gmail.com
29
////
30
///////////////////////////////////////////////////////////////// 
31
////
32
////
33
//// Copyright (C) 2009 Authors and OPENCORES.ORG
34
////
35
////
36
////
37
//// This source file may be used and distributed without
38
////
39
//// restriction provided that this copyright statement is not
40
////
41
//// removed from the file and that any derivative work contains
42
//// the original copyright notice and the associated disclaimer.
43
////
44
////
45
//// This source file is free software; you can redistribute it
46
////
47
//// and/or modify it under the terms of the GNU Lesser General
48
////
49
//// Public License as published by the Free Software Foundation;
50
//// either version 2.1 of the License, or (at your option) any
51
////
52
//// later version.
53
////
54
////
55
////
56
//// This source is distributed in the hope that it will be
57
////
58
//// useful, but WITHOUT ANY WARRANTY; without even the implied
59
////
60
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
61
////
62
//// PURPOSE. See the GNU Lesser General Public License for more
63
//// details.
64
////
65
////
66
////
67
//// You should have received a copy of the GNU Lesser General
68
////
69
//// Public License along with this source; if not, download it
70
////
71
//// from http://www.opencores.org/lgpl.shtml
72
////
73
////
74
///////////////////////////////////////////////////////////////////
75
static int aes_bfm_encryption_cbc_calltf(char*user_data)
76
{
77
 
78
        vpiHandle PRESETn = vpi_handle_by_name("AES_GLADIC_tb.PRESETn", NULL);
79
        vpiHandle PWDATA = vpi_handle_by_name("AES_GLADIC_tb.PWDATA", NULL);
80
        vpiHandle PENABLE = vpi_handle_by_name("AES_GLADIC_tb.PENABLE", NULL);
81
        vpiHandle PSEL = vpi_handle_by_name("AES_GLADIC_tb.PSEL", NULL);
82
        vpiHandle PWRITE = vpi_handle_by_name("AES_GLADIC_tb.PWRITE", NULL);
83
        vpiHandle PADDR = vpi_handle_by_name("AES_GLADIC_tb.PADDR", NULL);
84
        vpiHandle PRDATA = vpi_handle_by_name("AES_GLADIC_tb.PRDATA", NULL);
85
        vpiHandle PREADY = vpi_handle_by_name("AES_GLADIC_tb.PREADY", NULL);
86
        vpiHandle PSLVERR = vpi_handle_by_name("AES_GLADIC_tb.PSLVERR", NULL);
87
        vpiHandle int_ccf = vpi_handle_by_name("AES_GLADIC_tb.int_ccf", NULL);
88
        vpiHandle int_err = vpi_handle_by_name("AES_GLADIC_tb.int_err", NULL);
89
        vpiHandle dma_req_wr = vpi_handle_by_name("AES_GLADIC_tb.dma_req_wr", NULL);
90
        vpiHandle dma_req_rd = vpi_handle_by_name("AES_GLADIC_tb.dma_req_rd", NULL);
91
 
92
        std::random_device rd;
93
        std::uniform_int_distribution<long int> data_in(0,4294967295);
94
 
95
        v_ecb.format=vpiIntVal;
96
 
97
        vpi_get_value(PRESETn, &v_ecb);
98
 
99
 
100
        //printf("%i\n",STATE);
101
 
102
 
103
        if(type_bfm == CBC_ENCRYPTION && v_ecb.value.integer == 1)
104
        {
105
 
106
                switch(STATE)
107
                {
108
 
109
                  case IDLE:
110
 
111
                                if(PACKETS_GENERATED >= MAX_ITERATIONS)
112
                                {
113
 
114
                                        STATE = IDLE;
115
                                        type_bfm = 0;
116
 
117
                                }else
118
                                {
119
                                        STATE = WRITE;
120
 
121
                                        counter = 0;
122
 
123
 
124
                                        v_ecb.value.integer = 0;
125
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
126
 
127
                                        v_ecb.value.integer = vector_address[0];
128
                                        vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
129
 
130
                                        v_ecb.value.integer = 0;
131
                                        vpi_put_value(PWDATA, &v_ecb, NULL, vpiNoDelay);
132
 
133
                                        v_ecb.value.integer = 1;
134
                                        vpi_put_value(PWRITE, &v_ecb, NULL, vpiNoDelay);
135
 
136
                                        v_ecb.value.integer = 1;
137
                                        vpi_put_value(PSEL, &v_ecb, NULL, vpiNoDelay);
138
                                }
139
 
140
                  break;
141
 
142
                  case WRITE:
143
 
144
 
145
 
146
                        v_ecb.value.integer = 1;
147
                        vpi_put_value(PSEL, &v_ecb, NULL, vpiNoDelay);
148
 
149
                        if(counter == 0)
150
                        {
151
                                counter_write++;
152
                                counter++;
153
 
154
                                v_ecb.value.integer = 1;
155
                                vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
156
 
157
 
158
                        }else if(counter == 1)
159
                        {
160
 
161
 
162
 
163
                                t_ecb.type = vpiScaledRealTime;
164
                                t_ecb.real = 0;
165
                                v_ecb.format=vpiIntVal;
166
 
167
                                v_ecb.value.integer = 0;
168
                                vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
169
 
170
 
171
                                if(counter_write < 9)
172
                                {
173
 
174
                                        v_ecb.value.integer = vector_address[counter_write];
175
                                        vpi_put_value(PADDR, &v_ecb, &t_ecb, vpiTransportDelay);
176
 
177
                                        if(FIPS_ENABLE == FIPS)
178
                                        {
179
 
180
                                                if(vector_address[counter_write] == ADDR_AES_KEYR3)
181
                                                {
182
                                                        a = a | KEY_FIPS_CBC_NOT_DERIVATED[0];
183
                                                        a = a << 8;
184
                                                        a = a | KEY_FIPS_CBC_NOT_DERIVATED[1];
185
                                                        a = a << 8;
186
                                                        a = a | KEY_FIPS_CBC_NOT_DERIVATED[2];
187
                                                        a = a << 8;
188
                                                        a = a | KEY_FIPS_CBC_NOT_DERIVATED[3];
189
                                                        v_ecb.value.integer = a;
190
                                                }
191
 
192
 
193
                                                if(vector_address[counter_write] == ADDR_AES_KEYR2)
194
                                                {
195
                                                        b = b | KEY_FIPS_CBC_NOT_DERIVATED[4];
196
                                                        b = b << 8;
197
                                                        b = b | KEY_FIPS_CBC_NOT_DERIVATED[5];
198
                                                        b = b << 8;
199
                                                        b = b | KEY_FIPS_CBC_NOT_DERIVATED[6];
200
                                                        b = b << 8;
201
                                                        b = b | KEY_FIPS_CBC_NOT_DERIVATED[7];
202
                                                        v_ecb.value.integer = b;
203
                                                }
204
 
205
                                                if(vector_address[counter_write] == ADDR_AES_KEYR1)
206
                                                {
207
 
208
                                                        c = c | KEY_FIPS_CBC_NOT_DERIVATED[8];
209
                                                        c = c << 8;
210
                                                        c = c | KEY_FIPS_CBC_NOT_DERIVATED[9];
211
                                                        c = c << 8;
212
                                                        c = c | KEY_FIPS_CBC_NOT_DERIVATED[10];
213
                                                        c = c << 8;
214
                                                        c = c | KEY_FIPS_CBC_NOT_DERIVATED[11];
215
                                                        v_ecb.value.integer = c;
216
 
217
                                                }
218
 
219
                                                if(vector_address[counter_write] == ADDR_AES_KEYR0)
220
                                                {
221
                                                        d = d | KEY_FIPS_CBC_NOT_DERIVATED[12];
222
                                                        d = d << 8;
223
                                                        d = d | KEY_FIPS_CBC_NOT_DERIVATED[13];
224
                                                        d = d << 8;
225
                                                        d = d | KEY_FIPS_CBC_NOT_DERIVATED[14];
226
                                                        d = d << 8;
227
                                                        d = d | KEY_FIPS_CBC_NOT_DERIVATED[15];
228
                                                        v_ecb.value.integer = d;
229
                                                }
230
 
231
 
232
                                                if(vector_address[counter_write] == ADDR_AES_IVR3)
233
                                                {
234
                                                        a = a | IV_FIPS_CBC_NOT_DERIVATED[0];
235
                                                        a = a << 8;
236
                                                        a = a | IV_FIPS_CBC_NOT_DERIVATED[1];
237
                                                        a = a << 8;
238
                                                        a = a | IV_FIPS_CBC_NOT_DERIVATED[2];
239
                                                        a = a << 8;
240
                                                        a = a | IV_FIPS_CBC_NOT_DERIVATED[3];
241
                                                        v_ecb.value.integer = a;
242
                                                }
243
 
244
 
245
                                                if(vector_address[counter_write] == ADDR_AES_IVR2)
246
                                                {
247
                                                        b = b | IV_FIPS_CBC_NOT_DERIVATED[4];
248
                                                        b = b << 8;
249
                                                        b = b | IV_FIPS_CBC_NOT_DERIVATED[5];
250
                                                        b = b << 8;
251
                                                        b = b | IV_FIPS_CBC_NOT_DERIVATED[6];
252
                                                        b = b << 8;
253
                                                        b = b | IV_FIPS_CBC_NOT_DERIVATED[7];
254
                                                        v_ecb.value.integer = b;
255
                                                }
256
 
257
                                                if(vector_address[counter_write] == ADDR_AES_IVR1)
258
                                                {
259
 
260
                                                        c = c | IV_FIPS_CBC_NOT_DERIVATED[8];
261
                                                        c = c << 8;
262
                                                        c = c | IV_FIPS_CBC_NOT_DERIVATED[9];
263
                                                        c = c << 8;
264
                                                        c = c | IV_FIPS_CBC_NOT_DERIVATED[10];
265
                                                        c = c << 8;
266
                                                        c = c | IV_FIPS_CBC_NOT_DERIVATED[11];
267
                                                        v_ecb.value.integer = c;
268
 
269
                                                }
270
 
271
                                                if(vector_address[counter_write] == ADDR_AES_IVR0)
272
                                                {
273
                                                        d = d | IV_FIPS_CBC_NOT_DERIVATED[12];
274
                                                        d = d << 8;
275
                                                        d = d | IV_FIPS_CBC_NOT_DERIVATED[13];
276
                                                        d = d << 8;
277
                                                        d = d | IV_FIPS_CBC_NOT_DERIVATED[14];
278
                                                        d = d << 8;
279
                                                        d = d | IV_FIPS_CBC_NOT_DERIVATED[15];
280
                                                        v_ecb.value.integer = d;
281
                                                }
282
 
283
 
284
 
285
 
286
                                        }else if(FIPS_ENABLE == RANDOM_DATA)
287
                                        {
288
                                                v_ecb.value.integer = data_in(rd);
289
                                        }
290
 
291
                                        vpi_put_value(PWDATA, &v_ecb, &t_ecb, vpiTransportDelay);
292
 
293
 
294
                                        a = 0;
295
                                        b = 0;
296
                                        c = 0;
297
                                        d = 0;
298
 
299
 
300
 
301
                                }else if(counter_write == 9)//ENABLE CR
302
                                {
303
 
304 12 redbear
                                        if(DATATYPE == TYPE_00)// NO DINR DOUTR SWAP DATA
305
                                        {
306
                                                v_ecb.value.integer = ADDR_AES_CR;
307
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
308 5 redbear
 
309 12 redbear
                                                v_ecb.value.integer = 33;
310
                                                vpi_put_value(PWDATA, &v_ecb, &t_ecb, vpiTransportDelay);
311
 
312
                                        }else if(DATATYPE == TYPE_01)// 16 BIT DINR DOUTR SWAP DATA
313
                                        {
314
                                                v_ecb.value.integer = ADDR_AES_CR;
315
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
316
 
317
                                                v_ecb.value.integer = 35;
318
                                                vpi_put_value(PWDATA, &v_ecb, &t_ecb, vpiTransportDelay);
319
 
320
                                        }else if(DATATYPE == TYPE_02)// 8 BIT DINR DOUTR SWAP DATA
321
                                        {
322
                                                v_ecb.value.integer = ADDR_AES_CR;
323
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
324
 
325
                                                v_ecb.value.integer = 37;
326
                                                vpi_put_value(PWDATA, &v_ecb, &t_ecb, vpiTransportDelay);
327
 
328
                                        }else if(DATATYPE == TYPE_03)// BIT DINR DOUTR SWAP DATA
329
                                        {
330
                                                v_ecb.value.integer = ADDR_AES_CR;
331
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
332
 
333
                                                v_ecb.value.integer = 39;
334
                                                vpi_put_value(PWDATA, &v_ecb, &t_ecb, vpiTransportDelay);
335
                                        }
336 5 redbear
 
337
                                }else if(counter_write > 9  &&  counter_write < 14) //WRITE DINR
338
                                {
339
 
340
                                        v_ecb.value.integer = ADDR_AES_DINR;
341
                                        vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
342
 
343
 
344
                                        if(FIPS_ENABLE == FIPS)
345
                                        {
346
 
347 12 redbear
                                                if(DATATYPE == TYPE_00)
348 5 redbear
                                                {
349
 
350 12 redbear
                                                        if(counter_write == 10)
351
                                                        {
352
                                                                a = a | TEXT_FIPS_CBC_NOT_DERIVATED[0];
353
                                                                a = a << 8;
354
                                                                a = a | TEXT_FIPS_CBC_NOT_DERIVATED[1];
355
                                                                a = a << 8;
356
                                                                a = a | TEXT_FIPS_CBC_NOT_DERIVATED[2];
357
                                                                a = a << 8;
358
                                                                a = a | TEXT_FIPS_CBC_NOT_DERIVATED[3];
359
                                                                v_ecb.value.integer = a;
360 5 redbear
 
361 12 redbear
                                                        }else if(counter_write == 11)
362
                                                        {
363
                                                                b = b | TEXT_FIPS_CBC_NOT_DERIVATED[4];
364
                                                                b = b << 8;
365
                                                                b = b | TEXT_FIPS_CBC_NOT_DERIVATED[5];
366
                                                                b = b << 8;
367
                                                                b = b | TEXT_FIPS_CBC_NOT_DERIVATED[6];
368
                                                                b = b << 8;
369
                                                                b = b | TEXT_FIPS_CBC_NOT_DERIVATED[7];
370
                                                                v_ecb.value.integer = b;
371 5 redbear
 
372 12 redbear
                                                        }else if(counter_write == 12 )
373
                                                        {
374 5 redbear
 
375 12 redbear
                                                                c = c | TEXT_FIPS_CBC_NOT_DERIVATED[8];
376
                                                                c = c << 8;
377
                                                                c = c | TEXT_FIPS_CBC_NOT_DERIVATED[9];
378
                                                                c = c << 8;
379
                                                                c = c | TEXT_FIPS_CBC_NOT_DERIVATED[10];
380
                                                                c = c << 8;
381
                                                                c = c | TEXT_FIPS_CBC_NOT_DERIVATED[11];
382
                                                                v_ecb.value.integer = c;
383
 
384
                                                        }else if(counter_write == 13 )
385
                                                        {
386
                                                                d = d | TEXT_FIPS_CBC_NOT_DERIVATED[12];
387
                                                                d = d << 8;
388
                                                                d = d | TEXT_FIPS_CBC_NOT_DERIVATED[13];
389
                                                                d = d << 8;
390
                                                                d = d | TEXT_FIPS_CBC_NOT_DERIVATED[14];
391
                                                                d = d << 8;
392
                                                                d = d | TEXT_FIPS_CBC_NOT_DERIVATED[15];
393
                                                                v_ecb.value.integer = d;
394
 
395
                                                        }
396
 
397
                                                }else if(DATATYPE > TYPE_00)
398 5 redbear
                                                {
399
 
400 12 redbear
 
401
                                                        if(counter_write == 10)
402
                                                        {
403
                                                                a = a | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[0];
404
                                                                a = a << 8;
405
                                                                a = a | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[1];
406
                                                                a = a << 8;
407
                                                                a = a | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[2];
408
                                                                a = a << 8;
409
                                                                a = a | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[3];
410
                                                                v_ecb.value.integer = a;
411
 
412
                                                        }else if(counter_write == 11)
413
                                                        {
414
                                                                b = b | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[4];
415
                                                                b = b << 8;
416
                                                                b = b | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[5];
417
                                                                b = b << 8;
418
                                                                b = b | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[6];
419
                                                                b = b << 8;
420
                                                                b = b | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[7];
421
                                                                v_ecb.value.integer = b;
422
 
423
                                                        }else if(counter_write == 12 )
424
                                                        {
425
 
426
                                                                c = c | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[8];
427
                                                                c = c << 8;
428
                                                                c = c | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[9];
429
                                                                c = c << 8;
430
                                                                c = c | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[10];
431
                                                                c = c << 8;
432
                                                                c = c | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[11];
433
                                                                v_ecb.value.integer = c;
434
 
435
                                                        }else if(counter_write == 13 )
436
                                                        {
437
                                                                d = d | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[12];
438
                                                                d = d << 8;
439
                                                                d = d | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[13];
440
                                                                d = d << 8;
441
                                                                d = d | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[14];
442
                                                                d = d << 8;
443
                                                                d = d | TEXT_FIPS_CBC_NOT_DATATYPE_DERIVATED[15];
444
                                                                v_ecb.value.integer = d;
445
 
446
                                                        }
447
 
448 5 redbear
                                                }
449
 
450
 
451
                                        }else if(FIPS_ENABLE == RANDOM_DATA)
452
                                        {
453
                                                v_ecb.value.integer = data_in(rd);
454
                                        }
455
 
456
                                        vpi_put_value(PWDATA, &v_ecb, &t_ecb, vpiTransportDelay);
457
 
458
                                        a = 0;
459
                                        b = 0;
460
                                        c = 0;
461
                                        d = 0;
462
 
463
 
464
                                }
465
                                        counter=0;
466
 
467
                        }
468
 
469
 
470
 
471
                                if(counter_write == 14)
472
                                {
473
                                        counter_write = 0;
474
                                        STATE = WAIT_SR;
475
                                }
476
 
477
                  break;
478
 
479
                  case WAIT_SR:
480
 
481
                                v_ecb.value.integer = ADDR_AES_SR;
482
                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
483
 
484
                                v_ecb.value.integer = 0;
485
                                vpi_put_value(PWRITE, &v_ecb, NULL, vpiNoDelay);
486
 
487
                                if(counter == 0)
488
                                {
489
 
490
                                        counter++;
491
 
492
                                        v_ecb.value.integer = 1;
493
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
494
 
495 9 redbear
                                        v_ecb.value.integer = 0;
496
                                        vpi_get_value(PRDATA,&v_ecb);
497 5 redbear
 
498 9 redbear
                                        if(v_ecb.value.integer == 1)
499
                                        {
500
                                                STATE = READ_DOUTR;
501
 
502
                                                //t_ecb.type = vpiScaledRealTime;
503
                                                //t_ecb.real = 10;
504
                                                //v_ecb.format=vpiIntVal;
505
                                                //v_ecb.value.integer = ADDR_AES_DOUTR;
506
                                                //vpi_put_value(PADDR, &v_ecb, &t_ecb, vpiTransportDelay);
507
                                        }
508
 
509
 
510 5 redbear
                                }else if(counter == 1)
511
                                {
512
                                        v_ecb.value.integer = 0;
513
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
514
 
515
                                        counter=0;
516
                                }
517
 
518
 
519
 
520
 
521
                  break;
522
 
523
 
524
                 case READ_DOUTR:
525
 
526
 
527
 
528
                                if(counter == 0)
529
                                {
530
 
531
                                        v_ecb.value.integer = 1;
532
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
533
 
534
                                        counter_read++;
535
                                        counter++;
536
 
537
 
538
 
539
                                }else if(counter == 1)
540
                                {
541
                                        v_ecb.value.integer = 0;
542
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
543
 
544
 
545
                                        if(counter_read < 4)
546
                                        {
547
 
548
                                                v_ecb.value.integer = ADDR_AES_DOUTR;
549
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
550
 
551
                                        }
552
 
553
 
554
                                        if(counter_read == 4)
555
                                        {
556
 
557
                                                v_ecb.value.integer = ADDR_AES_KEYR3;
558
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
559
 
560
                                        }
561
 
562
 
563
                                        if(counter_read == 5)
564
                                        {
565
 
566
                                                v_ecb.value.integer = ADDR_AES_KEYR2;
567
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
568
 
569
                                        }
570
 
571
 
572
 
573
                                        if(counter_read == 6)
574
                                        {
575
 
576
                                                v_ecb.value.integer = ADDR_AES_KEYR1;
577
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
578
 
579
                                        }
580
 
581
 
582
                                        if(counter_read == 7)
583
                                        {
584
 
585
                                                v_ecb.value.integer = ADDR_AES_KEYR0;
586
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
587
 
588
                                        }
589
 
590
 
591
                                        if(counter_read == 8)
592
                                        {
593
 
594
                                                v_ecb.value.integer = ADDR_AES_IVR3;
595
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
596
 
597
                                        }
598
 
599
 
600
                                        if(counter_read == 9)
601
                                        {
602
 
603
                                                v_ecb.value.integer = ADDR_AES_IVR2;
604
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
605
 
606
                                        }
607
 
608
 
609
 
610
                                        if(counter_read == 10)
611
                                        {
612
 
613
                                                v_ecb.value.integer = ADDR_AES_IVR1;
614
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
615
 
616
                                        }
617
 
618
 
619
                                        if(counter_read == 11)
620
                                        {
621
 
622
                                                v_ecb.value.integer = ADDR_AES_IVR0;
623
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
624
 
625
                                        }
626
 
627
 
628
                                        counter = 0;
629
                                }
630
 
631
                                if(counter_read == 12)
632
                                {
633
                                        STATE = RESET_SR;
634
                                        counter_read = 0;
635
                                }
636
 
637
                 break;
638
 
639
                case RESET_SR:
640
 
641
                                v_ecb.value.integer = 1;
642
                                vpi_put_value(PWRITE, &v_ecb, NULL, vpiNoDelay);
643
 
644
                                v_ecb.value.integer = 1;
645
                                vpi_put_value(PSEL, &v_ecb, NULL, vpiNoDelay);
646
 
647
                                v_ecb.value.integer = 0;
648
                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
649
 
650
                                v_ecb.value.integer = 128;
651
                                vpi_put_value(PWDATA, &v_ecb, NULL, vpiNoDelay);
652
 
653
 
654
                                if(counter == 0)
655
                                {
656
 
657
                                        counter_write++;
658
                                        counter++;
659
 
660
                                        v_ecb.value.integer = 1;
661
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
662
 
663
                                }else if(counter == 1)
664
                                {
665
 
666
                                        v_ecb.value.integer = 0;
667
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
668
                                        counter=0;
669
 
670
                                }
671
 
672
                                if(counter_write == 1)
673
                                {
674
                                        STATE =IDLE;
675
                                        counter_write = 0;
676
                                        counter=0;
677
 
678
                                        PACKETS_GENERATED = PACKETS_GENERATED + 1;
679
                                }
680
 
681
 
682
 
683
                break;
684
 
685
                }
686
 
687
        }
688
 
689
        return 0;
690
}

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