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Merge 3.1-rc1 into usb-linus
[zen-stable.git] / drivers / staging / altera-stapl / altera.c
blob8d73a86427360a645132120b621f66b5d3287e29
1 /*
2 * altera.c
3 *
4 * altera FPGA driver
5 *
6 * Copyright (C) Altera Corporation 1998-2001
7 * Copyright (C) 2010,2011 NetUP Inc.
8 * Copyright (C) 2010,2011 Igor M. Liplianin <liplianin@netup.ru>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 *
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 */
25
26 #include <asm/unaligned.h>
27 #include <linux/ctype.h>
28 #include <linux/string.h>
29 #include <linux/firmware.h>
30 #include <linux/slab.h>
31 #include "altera.h"
32 #include "altera-exprt.h"
33 #include "altera-jtag.h"
34
35 static int debug = 1;
36 module_param(debug, int, 0644);
37 MODULE_PARM_DESC(debug, "enable debugging information");
38
39 MODULE_DESCRIPTION("altera FPGA kernel module");
40 MODULE_AUTHOR("Igor M. Liplianin <liplianin@netup.ru>");
41 MODULE_LICENSE("GPL");
42
43 #define dprintk(args...) \
44 if (debug) { \
45 printk(KERN_DEBUG args); \
46 }
47
48 enum altera_fpga_opcode {
49 OP_NOP = 0,
50 OP_DUP,
51 OP_SWP,
52 OP_ADD,
53 OP_SUB,
54 OP_MULT,
55 OP_DIV,
56 OP_MOD,
57 OP_SHL,
58 OP_SHR,
59 OP_NOT,
60 OP_AND,
61 OP_OR,
62 OP_XOR,
63 OP_INV,
64 OP_GT,
65 OP_LT,
66 OP_RET,
67 OP_CMPS,
68 OP_PINT,
69 OP_PRNT,
70 OP_DSS,
71 OP_DSSC,
72 OP_ISS,
73 OP_ISSC,
74 OP_DPR = 0x1c,
75 OP_DPRL,
76 OP_DPO,
77 OP_DPOL,
78 OP_IPR,
79 OP_IPRL,
80 OP_IPO,
81 OP_IPOL,
82 OP_PCHR,
83 OP_EXIT,
84 OP_EQU,
85 OP_POPT,
86 OP_ABS = 0x2c,
87 OP_BCH0,
88 OP_PSH0 = 0x2f,
89 OP_PSHL = 0x40,
90 OP_PSHV,
91 OP_JMP,
92 OP_CALL,
93 OP_NEXT,
94 OP_PSTR,
95 OP_SINT = 0x47,
96 OP_ST,
97 OP_ISTP,
98 OP_DSTP,
99 OP_SWPN,
100 OP_DUPN,
101 OP_POPV,
102 OP_POPE,
103 OP_POPA,
104 OP_JMPZ,
105 OP_DS,
106 OP_IS,
107 OP_DPRA,
108 OP_DPOA,
109 OP_IPRA,
110 OP_IPOA,
111 OP_EXPT,
112 OP_PSHE,
113 OP_PSHA,
114 OP_DYNA,
115 OP_EXPV = 0x5c,
116 OP_COPY = 0x80,
117 OP_REVA,
118 OP_DSC,
119 OP_ISC,
120 OP_WAIT,
121 OP_VS,
122 OP_CMPA = 0xc0,
123 OP_VSC,
124 };
125
126 struct altera_procinfo {
127 char *name;
128 u8 attrs;
129 struct altera_procinfo *next;
130 };
131
132 /* This function checks if enough parameters are available on the stack. */
133 static int altera_check_stack(int stack_ptr, int count, int *status)
134 {
135 if (stack_ptr < count) {
136 *status = -EOVERFLOW;
137 return 0;
138 }
139
140 return 1;
141 }
142
143 static void altera_export_int(char *key, s32 value)
144 {
145 dprintk("Export: key = \"%s\", value = %d\n", key, value);
146 }
147
148 #define HEX_LINE_CHARS 72
149 #define HEX_LINE_BITS (HEX_LINE_CHARS * 4)
150
151 static void altera_export_bool_array(char *key, u8 *data, s32 count)
152 {
153 char string[HEX_LINE_CHARS + 1];
154 s32 i, offset;
155 u32 size, line, lines, linebits, value, j, k;
156
157 if (count > HEX_LINE_BITS) {
158 dprintk("Export: key = \"%s\", %d bits, value = HEX\n",
159 key, count);
160 lines = (count + (HEX_LINE_BITS - 1)) / HEX_LINE_BITS;
161
162 for (line = 0; line < lines; ++line) {
163 if (line < (lines - 1)) {
164 linebits = HEX_LINE_BITS;
165 size = HEX_LINE_CHARS;
166 offset = count - ((line + 1) * HEX_LINE_BITS);
167 } else {
168 linebits =
169 count - ((lines - 1) * HEX_LINE_BITS);
170 size = (linebits + 3) / 4;
171 offset = 0L;
172 }
173
174 string[size] = '\0';
175 j = size - 1;
176 value = 0;
177
178 for (k = 0; k < linebits; ++k) {
179 i = k + offset;
180 if (data[i >> 3] & (1 << (i & 7)))
181 value |= (1 << (i & 3));
182 if ((i & 3) == 3) {
183 sprintf(&string[j], "%1x", value);
184 value = 0;
185 --j;
186 }
187 }
188 if ((k & 3) > 0)
189 sprintf(&string[j], "%1x", value);
190
191 dprintk("%s\n", string);
192 }
193
194 } else {
195 size = (count + 3) / 4;
196 string[size] = '\0';
197 j = size - 1;
198 value = 0;
199
200 for (i = 0; i < count; ++i) {
201 if (data[i >> 3] & (1 << (i & 7)))
202 value |= (1 << (i & 3));
203 if ((i & 3) == 3) {
204 sprintf(&string[j], "%1x", value);
205 value = 0;
206 --j;
207 }
208 }
209 if ((i & 3) > 0)
210 sprintf(&string[j], "%1x", value);
211
212 dprintk("Export: key = \"%s\", %d bits, value = HEX %s\n",
213 key, count, string);
214 }
215 }
216
217 static int altera_execute(struct altera_state *astate,
218 u8 *p,
219 s32 program_size,
220 s32 *error_address,
221 int *exit_code,
222 int *format_version)
223 {
224 struct altera_config *aconf = astate->config;
225 char *msg_buff = astate->msg_buff;
226 long *stack = astate->stack;
227 int status = 0;
228 u32 first_word = 0L;
229 u32 action_table = 0L;
230 u32 proc_table = 0L;
231 u32 str_table = 0L;
232 u32 sym_table = 0L;
233 u32 data_sect = 0L;
234 u32 code_sect = 0L;
235 u32 debug_sect = 0L;
236 u32 action_count = 0L;
237 u32 proc_count = 0L;
238 u32 sym_count = 0L;
239 long *vars = NULL;
240 s32 *var_size = NULL;
241 char *attrs = NULL;
242 u8 *proc_attributes = NULL;
243 u32 pc;
244 u32 opcode_address;
245 u32 args[3];
246 u32 opcode;
247 u32 name_id;
248 u8 charbuf[4];
249 long long_tmp;
250 u32 variable_id;
251 u8 *charptr_tmp;
252 u8 *charptr_tmp2;
253 long *longptr_tmp;
254 int version = 0;
255 int delta = 0;
256 int stack_ptr = 0;
257 u32 arg_count;
258 int done = 0;
259 int bad_opcode = 0;
260 u32 count;
261 u32 index;
262 u32 index2;
263 s32 long_count;
264 s32 long_idx;
265 s32 long_idx2;
266 u32 i;
267 u32 j;
268 u32 uncomp_size;
269 u32 offset;
270 u32 value;
271 int current_proc = 0;
272 int reverse;
273
274 char *name;
275
276 dprintk("%s\n", __func__);
277
278 /* Read header information */
279 if (program_size > 52L) {
280 first_word = get_unaligned_be32(&p[0]);
281 version = (first_word & 1L);
282 *format_version = version + 1;
283 delta = version * 8;
284
285 action_table = get_unaligned_be32(&p[4]);
286 proc_table = get_unaligned_be32(&p[8]);
287 str_table = get_unaligned_be32(&p[4 + delta]);
288 sym_table = get_unaligned_be32(&p[16 + delta]);
289 data_sect = get_unaligned_be32(&p[20 + delta]);
290 code_sect = get_unaligned_be32(&p[24 + delta]);
291 debug_sect = get_unaligned_be32(&p[28 + delta]);
292 action_count = get_unaligned_be32(&p[40 + delta]);
293 proc_count = get_unaligned_be32(&p[44 + delta]);
294 sym_count = get_unaligned_be32(&p[48 + (2 * delta)]);
295 }
296
297 if ((first_word != 0x4A414D00L) && (first_word != 0x4A414D01L)) {
298 done = 1;
299 status = -EIO;
300 goto exit_done;
301 }
302
303 if (sym_count <= 0)
304 goto exit_done;
305
306 vars = kzalloc(sym_count * sizeof(long), GFP_KERNEL);
307
308 if (vars == NULL)
309 status = -ENOMEM;
310
311 if (status == 0) {
312 var_size = kzalloc(sym_count * sizeof(s32), GFP_KERNEL);
313
314 if (var_size == NULL)
315 status = -ENOMEM;
316 }
317
318 if (status == 0) {
319 attrs = kzalloc(sym_count, GFP_KERNEL);
320
321 if (attrs == NULL)
322 status = -ENOMEM;
323 }
324
325 if ((status == 0) && (version > 0)) {
326 proc_attributes = kzalloc(proc_count, GFP_KERNEL);
327
328 if (proc_attributes == NULL)
329 status = -ENOMEM;
330 }
331
332 if (status != 0)
333 goto exit_done;
334
335 delta = version * 2;
336
337 for (i = 0; i < sym_count; ++i) {
338 offset = (sym_table + ((11 + delta) * i));
339
340 value = get_unaligned_be32(&p[offset + 3 + delta]);
341
342 attrs[i] = p[offset];
343
344 /*
345 * use bit 7 of attribute byte to indicate that
346 * this buffer was dynamically allocated
347 * and should be freed later
348 */
349 attrs[i] &= 0x7f;
350
351 var_size[i] = get_unaligned_be32(&p[offset + 7 + delta]);
352
353 /*
354 * Attribute bits:
355 * bit 0: 0 = read-only, 1 = read-write
356 * bit 1: 0 = not compressed, 1 = compressed
357 * bit 2: 0 = not initialized, 1 = initialized
358 * bit 3: 0 = scalar, 1 = array
359 * bit 4: 0 = Boolean, 1 = integer
360 * bit 5: 0 = declared variable,
361 * 1 = compiler created temporary variable
362 */
363
364 if ((attrs[i] & 0x0c) == 0x04)
365 /* initialized scalar variable */
366 vars[i] = value;
367 else if ((attrs[i] & 0x1e) == 0x0e) {
368 /* initialized compressed Boolean array */
369 uncomp_size = get_unaligned_le32(&p[data_sect + value]);
370
371 /* allocate a buffer for the uncompressed data */
372 vars[i] = (long)kzalloc(uncomp_size, GFP_KERNEL);
373 if (vars[i] == 0L)
374 status = -ENOMEM;
375 else {
376 /* set flag so buffer will be freed later */
377 attrs[i] |= 0x80;
378
379 /* uncompress the data */
380 if (altera_shrink(&p[data_sect + value],
381 var_size[i],
382 (u8 *)vars[i],
383 uncomp_size,
384 version) != uncomp_size)
385 /* decompression failed */
386 status = -EIO;
387 else
388 var_size[i] = uncomp_size * 8L;
389
390 }
391 } else if ((attrs[i] & 0x1e) == 0x0c) {
392 /* initialized Boolean array */
393 vars[i] = value + data_sect + (long)p;
394 } else if ((attrs[i] & 0x1c) == 0x1c) {
395 /* initialized integer array */
396 vars[i] = value + data_sect;
397 } else if ((attrs[i] & 0x0c) == 0x08) {
398 /* uninitialized array */
399
400 /* flag attrs so that memory is freed */
401 attrs[i] |= 0x80;
402
403 if (var_size[i] > 0) {
404 u32 size;
405
406 if (attrs[i] & 0x10)
407 /* integer array */
408 size = (var_size[i] * sizeof(s32));
409 else
410 /* Boolean array */
411 size = ((var_size[i] + 7L) / 8L);
412
413 vars[i] = (long)kzalloc(size, GFP_KERNEL);
414
415 if (vars[i] == 0) {
416 status = -ENOMEM;
417 } else {
418 /* zero out memory */
419 for (j = 0; j < size; ++j)
420 ((u8 *)(vars[i]))[j] = 0;
421
422 }
423 } else
424 vars[i] = 0;
425
426 } else
427 vars[i] = 0;
428
429 }
430
431 exit_done:
432 if (status != 0)
433 done = 1;
434
435 altera_jinit(astate);
436
437 pc = code_sect;
438 msg_buff[0] = '\0';
439
440 /*
441 * For JBC version 2, we will execute the procedures corresponding to
442 * the selected ACTION
443 */
444 if (version > 0) {
445 if (aconf->action == NULL) {
446 status = -EINVAL;
447 done = 1;
448 } else {
449 int action_found = 0;
450 for (i = 0; (i < action_count) && !action_found; ++i) {
451 name_id = get_unaligned_be32(&p[action_table +
452 (12 * i)]);
453
454 name = &p[str_table + name_id];
455
456 if (strnicmp(aconf->action, name, strlen(name)) == 0) {
457 action_found = 1;
458 current_proc =
459 get_unaligned_be32(&p[action_table +
460 (12 * i) + 8]);
461 }
462 }
463
464 if (!action_found) {
465 status = -EINVAL;
466 done = 1;
467 }
468 }
469
470 if (status == 0) {
471 int first_time = 1;
472 i = current_proc;
473 while ((i != 0) || first_time) {
474 first_time = 0;
475 /* check procedure attribute byte */
476 proc_attributes[i] =
477 (p[proc_table +
478 (13 * i) + 8] &
479 0x03);
480
481 /*
482 * BIT0 - OPTIONAL
483 * BIT1 - RECOMMENDED
484 * BIT6 - FORCED OFF
485 * BIT7 - FORCED ON
486 */
487
488 i = get_unaligned_be32(&p[proc_table +
489 (13 * i) + 4]);
490 }
491
492 /*
493 * Set current_proc to the first procedure
494 * to be executed
495 */
496 i = current_proc;
497 while ((i != 0) &&
498 ((proc_attributes[i] == 1) ||
499 ((proc_attributes[i] & 0xc0) == 0x40))) {
500 i = get_unaligned_be32(&p[proc_table +
501 (13 * i) + 4]);
502 }
503
504 if ((i != 0) || ((i == 0) && (current_proc == 0) &&
505 ((proc_attributes[0] != 1) &&
506 ((proc_attributes[0] & 0xc0) != 0x40)))) {
507 current_proc = i;
508 pc = code_sect +
509 get_unaligned_be32(&p[proc_table +
510 (13 * i) + 9]);
511 if ((pc < code_sect) || (pc >= debug_sect))
512 status = -ERANGE;
513 } else
514 /* there are no procedures to execute! */
515 done = 1;
516
517 }
518 }
519
520 msg_buff[0] = '\0';
521
522 while (!done) {
523 opcode = (p[pc] & 0xff);
524 opcode_address = pc;
525 ++pc;
526
527 if (debug > 1)
528 printk("opcode: %02x\n", opcode);
529
530 arg_count = (opcode >> 6) & 3;
531 for (i = 0; i < arg_count; ++i) {
532 args[i] = get_unaligned_be32(&p[pc]);
533 pc += 4;
534 }
535
536 switch (opcode) {
537 case OP_NOP:
538 break;
539 case OP_DUP:
540 if (altera_check_stack(stack_ptr, 1, &status)) {
541 stack[stack_ptr] = stack[stack_ptr - 1];
542 ++stack_ptr;
543 }
544 break;
545 case OP_SWP:
546 if (altera_check_stack(stack_ptr, 2, &status)) {
547 long_tmp = stack[stack_ptr - 2];
548 stack[stack_ptr - 2] = stack[stack_ptr - 1];
549 stack[stack_ptr - 1] = long_tmp;
550 }
551 break;
552 case OP_ADD:
553 if (altera_check_stack(stack_ptr, 2, &status)) {
554 --stack_ptr;
555 stack[stack_ptr - 1] += stack[stack_ptr];
556 }
557 break;
558 case OP_SUB:
559 if (altera_check_stack(stack_ptr, 2, &status)) {
560 --stack_ptr;
561 stack[stack_ptr - 1] -= stack[stack_ptr];
562 }
563 break;
564 case OP_MULT:
565 if (altera_check_stack(stack_ptr, 2, &status)) {
566 --stack_ptr;
567 stack[stack_ptr - 1] *= stack[stack_ptr];
568 }
569 break;
570 case OP_DIV:
571 if (altera_check_stack(stack_ptr, 2, &status)) {
572 --stack_ptr;
573 stack[stack_ptr - 1] /= stack[stack_ptr];
574 }
575 break;
576 case OP_MOD:
577 if (altera_check_stack(stack_ptr, 2, &status)) {
578 --stack_ptr;
579 stack[stack_ptr - 1] %= stack[stack_ptr];
580 }
581 break;
582 case OP_SHL:
583 if (altera_check_stack(stack_ptr, 2, &status)) {
584 --stack_ptr;
585 stack[stack_ptr - 1] <<= stack[stack_ptr];
586 }
587 break;
588 case OP_SHR:
589 if (altera_check_stack(stack_ptr, 2, &status)) {
590 --stack_ptr;
591 stack[stack_ptr - 1] >>= stack[stack_ptr];
592 }
593 break;
594 case OP_NOT:
595 if (altera_check_stack(stack_ptr, 1, &status))
596 stack[stack_ptr - 1] ^= (-1L);
597
598 break;
599 case OP_AND:
600 if (altera_check_stack(stack_ptr, 2, &status)) {
601 --stack_ptr;
602 stack[stack_ptr - 1] &= stack[stack_ptr];
603 }
604 break;
605 case OP_OR:
606 if (altera_check_stack(stack_ptr, 2, &status)) {
607 --stack_ptr;
608 stack[stack_ptr - 1] |= stack[stack_ptr];
609 }
610 break;
611 case OP_XOR:
612 if (altera_check_stack(stack_ptr, 2, &status)) {
613 --stack_ptr;
614 stack[stack_ptr - 1] ^= stack[stack_ptr];
615 }
616 break;
617 case OP_INV:
618 if (!altera_check_stack(stack_ptr, 1, &status))
619 break;
620 stack[stack_ptr - 1] = stack[stack_ptr - 1] ? 0L : 1L;
621 break;
622 case OP_GT:
623 if (!altera_check_stack(stack_ptr, 2, &status))
624 break;
625 --stack_ptr;
626 stack[stack_ptr - 1] =
627 (stack[stack_ptr - 1] > stack[stack_ptr]) ?
628 1L : 0L;
629
630 break;
631 case OP_LT:
632 if (!altera_check_stack(stack_ptr, 2, &status))
633 break;
634 --stack_ptr;
635 stack[stack_ptr - 1] =
636 (stack[stack_ptr - 1] < stack[stack_ptr]) ?
637 1L : 0L;
638
639 break;
640 case OP_RET:
641 if ((version > 0) && (stack_ptr == 0)) {
642 /*
643 * We completed one of the main procedures
644 * of an ACTION.
645 * Find the next procedure
646 * to be executed and jump to it.
647 * If there are no more procedures, then EXIT.
648 */
649 i = get_unaligned_be32(&p[proc_table +
650 (13 * current_proc) + 4]);
651 while ((i != 0) &&
652 ((proc_attributes[i] == 1) ||
653 ((proc_attributes[i] & 0xc0) == 0x40)))
654 i = get_unaligned_be32(&p[proc_table +
655 (13 * i) + 4]);
656
657 if (i == 0) {
658 /* no procedures to execute! */
659 done = 1;
660 *exit_code = 0; /* success */
661 } else {
662 current_proc = i;
663 pc = code_sect + get_unaligned_be32(
664 &p[proc_table +
665 (13 * i) + 9]);
666 if ((pc < code_sect) ||
667 (pc >= debug_sect))
668 status = -ERANGE;
669 }
670
671 } else
672 if (altera_check_stack(stack_ptr, 1, &status)) {
673 pc = stack[--stack_ptr] + code_sect;
674 if ((pc <= code_sect) ||
675 (pc >= debug_sect))
676 status = -ERANGE;
677
678 }
679
680 break;
681 case OP_CMPS:
682 /*
683 * Array short compare
684 * ...stack 0 is source 1 value
685 * ...stack 1 is source 2 value
686 * ...stack 2 is mask value
687 * ...stack 3 is count
688 */
689 if (altera_check_stack(stack_ptr, 4, &status)) {
690 s32 a = stack[--stack_ptr];
691 s32 b = stack[--stack_ptr];
692 long_tmp = stack[--stack_ptr];
693 count = stack[stack_ptr - 1];
694
695 if ((count < 1) || (count > 32))
696 status = -ERANGE;
697 else {
698 long_tmp &= ((-1L) >> (32 - count));
699
700 stack[stack_ptr - 1] =
701 ((a & long_tmp) == (b & long_tmp))
702 ? 1L : 0L;
703 }
704 }
705 break;
706 case OP_PINT:
707 /*
708 * PRINT add integer
709 * ...stack 0 is integer value
710 */
711 if (!altera_check_stack(stack_ptr, 1, &status))
712 break;
713 sprintf(&msg_buff[strlen(msg_buff)],
714 "%ld", stack[--stack_ptr]);
715 break;
716 case OP_PRNT:
717 /* PRINT finish */
718 if (debug)
719 printk(msg_buff, "\n");
720
721 msg_buff[0] = '\0';
722 break;
723 case OP_DSS:
724 /*
725 * DRSCAN short
726 * ...stack 0 is scan data
727 * ...stack 1 is count
728 */
729 if (!altera_check_stack(stack_ptr, 2, &status))
730 break;
731 long_tmp = stack[--stack_ptr];
732 count = stack[--stack_ptr];
733 put_unaligned_le32(long_tmp, &charbuf[0]);
734 status = altera_drscan(astate, count, charbuf, 0);
735 break;
736 case OP_DSSC:
737 /*
738 * DRSCAN short with capture
739 * ...stack 0 is scan data
740 * ...stack 1 is count
741 */
742 if (!altera_check_stack(stack_ptr, 2, &status))
743 break;
744 long_tmp = stack[--stack_ptr];
745 count = stack[stack_ptr - 1];
746 put_unaligned_le32(long_tmp, &charbuf[0]);
747 status = altera_swap_dr(astate, count, charbuf,
748 0, charbuf, 0);
749 stack[stack_ptr - 1] = get_unaligned_le32(&charbuf[0]);
750 break;
751 case OP_ISS:
752 /*
753 * IRSCAN short
754 * ...stack 0 is scan data
755 * ...stack 1 is count
756 */
757 if (!altera_check_stack(stack_ptr, 2, &status))
758 break;
759 long_tmp = stack[--stack_ptr];
760 count = stack[--stack_ptr];
761 put_unaligned_le32(long_tmp, &charbuf[0]);
762 status = altera_irscan(astate, count, charbuf, 0);
763 break;
764 case OP_ISSC:
765 /*
766 * IRSCAN short with capture
767 * ...stack 0 is scan data
768 * ...stack 1 is count
769 */
770 if (!altera_check_stack(stack_ptr, 2, &status))
771 break;
772 long_tmp = stack[--stack_ptr];
773 count = stack[stack_ptr - 1];
774 put_unaligned_le32(long_tmp, &charbuf[0]);
775 status = altera_swap_ir(astate, count, charbuf,
776 0, charbuf, 0);
777 stack[stack_ptr - 1] = get_unaligned_le32(&charbuf[0]);
778 break;
779 case OP_DPR:
780 if (!altera_check_stack(stack_ptr, 1, &status))
781 break;
782 count = stack[--stack_ptr];
783 status = altera_set_dr_pre(&astate->js, count, 0, NULL);
784 break;
785 case OP_DPRL:
786 /*
787 * DRPRE with literal data
788 * ...stack 0 is count
789 * ...stack 1 is literal data
790 */
791 if (!altera_check_stack(stack_ptr, 2, &status))
792 break;
793 count = stack[--stack_ptr];
794 long_tmp = stack[--stack_ptr];
795 put_unaligned_le32(long_tmp, &charbuf[0]);
796 status = altera_set_dr_pre(&astate->js, count, 0,
797 charbuf);
798 break;
799 case OP_DPO:
800 /*
801 * DRPOST
802 * ...stack 0 is count
803 */
804 if (altera_check_stack(stack_ptr, 1, &status)) {
805 count = stack[--stack_ptr];
806 status = altera_set_dr_post(&astate->js, count,
807 0, NULL);
808 }
809 break;
810 case OP_DPOL:
811 /*
812 * DRPOST with literal data
813 * ...stack 0 is count
814 * ...stack 1 is literal data
815 */
816 if (!altera_check_stack(stack_ptr, 2, &status))
817 break;
818 count = stack[--stack_ptr];
819 long_tmp = stack[--stack_ptr];
820 put_unaligned_le32(long_tmp, &charbuf[0]);
821 status = altera_set_dr_post(&astate->js, count, 0,
822 charbuf);
823 break;
824 case OP_IPR:
825 if (altera_check_stack(stack_ptr, 1, &status)) {
826 count = stack[--stack_ptr];
827 status = altera_set_ir_pre(&astate->js, count,
828 0, NULL);
829 }
830 break;
831 case OP_IPRL:
832 /*
833 * IRPRE with literal data
834 * ...stack 0 is count
835 * ...stack 1 is literal data
836 */
837 if (altera_check_stack(stack_ptr, 2, &status)) {
838 count = stack[--stack_ptr];
839 long_tmp = stack[--stack_ptr];
840 put_unaligned_le32(long_tmp, &charbuf[0]);
841 status = altera_set_ir_pre(&astate->js, count,
842 0, charbuf);
843 }
844 break;
845 case OP_IPO:
846 /*
847 * IRPOST
848 * ...stack 0 is count
849 */
850 if (altera_check_stack(stack_ptr, 1, &status)) {
851 count = stack[--stack_ptr];
852 status = altera_set_ir_post(&astate->js, count,
853 0, NULL);
854 }
855 break;
856 case OP_IPOL:
857 /*
858 * IRPOST with literal data
859 * ...stack 0 is count
860 * ...stack 1 is literal data
861 */
862 if (!altera_check_stack(stack_ptr, 2, &status))
863 break;
864 count = stack[--stack_ptr];
865 long_tmp = stack[--stack_ptr];
866 put_unaligned_le32(long_tmp, &charbuf[0]);
867 status = altera_set_ir_post(&astate->js, count, 0,
868 charbuf);
869 break;
870 case OP_PCHR:
871 if (altera_check_stack(stack_ptr, 1, &status)) {
872 u8 ch;
873 count = strlen(msg_buff);
874 ch = (char) stack[--stack_ptr];
875 if ((ch < 1) || (ch > 127)) {
876 /*
877 * character code out of range
878 * instead of flagging an error,
879 * force the value to 127
880 */
881 ch = 127;
882 }
883 msg_buff[count] = ch;
884 msg_buff[count + 1] = '\0';
885 }
886 break;
887 case OP_EXIT:
888 if (altera_check_stack(stack_ptr, 1, &status))
889 *exit_code = stack[--stack_ptr];
890
891 done = 1;
892 break;
893 case OP_EQU:
894 if (!altera_check_stack(stack_ptr, 2, &status))
895 break;
896 --stack_ptr;
897 stack[stack_ptr - 1] =
898 (stack[stack_ptr - 1] == stack[stack_ptr]) ?
899 1L : 0L;
900 break;
901 case OP_POPT:
902 if (altera_check_stack(stack_ptr, 1, &status))
903 --stack_ptr;
904
905 break;
906 case OP_ABS:
907 if (!altera_check_stack(stack_ptr, 1, &status))
908 break;
909 if (stack[stack_ptr - 1] < 0)
910 stack[stack_ptr - 1] = 0 - stack[stack_ptr - 1];
911
912 break;
913 case OP_BCH0:
914 /*
915 * Batch operation 0
916 * SWP
917 * SWPN 7
918 * SWP
919 * SWPN 6
920 * DUPN 8
921 * SWPN 2
922 * SWP
923 * DUPN 6
924 * DUPN 6
925 */
926
927 /* SWP */
928 if (altera_check_stack(stack_ptr, 2, &status)) {
929 long_tmp = stack[stack_ptr - 2];
930 stack[stack_ptr - 2] = stack[stack_ptr - 1];
931 stack[stack_ptr - 1] = long_tmp;
932 }
933
934 /* SWPN 7 */
935 index = 7 + 1;
936 if (altera_check_stack(stack_ptr, index, &status)) {
937 long_tmp = stack[stack_ptr - index];
938 stack[stack_ptr - index] = stack[stack_ptr - 1];
939 stack[stack_ptr - 1] = long_tmp;
940 }
941
942 /* SWP */
943 if (altera_check_stack(stack_ptr, 2, &status)) {
944 long_tmp = stack[stack_ptr - 2];
945 stack[stack_ptr - 2] = stack[stack_ptr - 1];
946 stack[stack_ptr - 1] = long_tmp;
947 }
948
949 /* SWPN 6 */
950 index = 6 + 1;
951 if (altera_check_stack(stack_ptr, index, &status)) {
952 long_tmp = stack[stack_ptr - index];
953 stack[stack_ptr - index] = stack[stack_ptr - 1];
954 stack[stack_ptr - 1] = long_tmp;
955 }
956
957 /* DUPN 8 */
958 index = 8 + 1;
959 if (altera_check_stack(stack_ptr, index, &status)) {
960 stack[stack_ptr] = stack[stack_ptr - index];
961 ++stack_ptr;
962 }
963
964 /* SWPN 2 */
965 index = 2 + 1;
966 if (altera_check_stack(stack_ptr, index, &status)) {
967 long_tmp = stack[stack_ptr - index];
968 stack[stack_ptr - index] = stack[stack_ptr - 1];
969 stack[stack_ptr - 1] = long_tmp;
970 }
971
972 /* SWP */
973 if (altera_check_stack(stack_ptr, 2, &status)) {
974 long_tmp = stack[stack_ptr - 2];
975 stack[stack_ptr - 2] = stack[stack_ptr - 1];
976 stack[stack_ptr - 1] = long_tmp;
977 }
978
979 /* DUPN 6 */
980 index = 6 + 1;
981 if (altera_check_stack(stack_ptr, index, &status)) {
982 stack[stack_ptr] = stack[stack_ptr - index];
983 ++stack_ptr;
984 }
985
986 /* DUPN 6 */
987 index = 6 + 1;
988 if (altera_check_stack(stack_ptr, index, &status)) {
989 stack[stack_ptr] = stack[stack_ptr - index];
990 ++stack_ptr;
991 }
992 break;
993 case OP_PSH0:
994 stack[stack_ptr++] = 0;
995 break;
996 case OP_PSHL:
997 stack[stack_ptr++] = (s32) args[0];
998 break;
999 case OP_PSHV:
1000 stack[stack_ptr++] = vars[args[0]];
1001 break;
1002 case OP_JMP:
1003 pc = args[0] + code_sect;
1004 if ((pc < code_sect) || (pc >= debug_sect))
1005 status = -ERANGE;
1006 break;
1007 case OP_CALL:
1008 stack[stack_ptr++] = pc;
1009 pc = args[0] + code_sect;
1010 if ((pc < code_sect) || (pc >= debug_sect))
1011 status = -ERANGE;
1012 break;
1013 case OP_NEXT:
1014 /*
1015 * Process FOR / NEXT loop
1016 * ...argument 0 is variable ID
1017 * ...stack 0 is step value
1018 * ...stack 1 is end value
1019 * ...stack 2 is top address
1020 */
1021 if (altera_check_stack(stack_ptr, 3, &status)) {
1022 s32 step = stack[stack_ptr - 1];
1023 s32 end = stack[stack_ptr - 2];
1024 s32 top = stack[stack_ptr - 3];
1025 s32 iterator = vars[args[0]];
1026 int break_out = 0;
1027
1028 if (step < 0) {
1029 if (iterator <= end)
1030 break_out = 1;
1031 } else if (iterator >= end)
1032 break_out = 1;
1033
1034 if (break_out) {
1035 stack_ptr -= 3;
1036 } else {
1037 vars[args[0]] = iterator + step;
1038 pc = top + code_sect;
1039 if ((pc < code_sect) ||
1040 (pc >= debug_sect))
1041 status = -ERANGE;
1042 }
1043 }
1044 break;
1045 case OP_PSTR:
1046 /*
1047 * PRINT add string
1048 * ...argument 0 is string ID
1049 */
1050 count = strlen(msg_buff);
1051 strlcpy(&msg_buff[count],
1052 &p[str_table + args[0]],
1053 ALTERA_MESSAGE_LENGTH - count);
1054 break;
1055 case OP_SINT:
1056 /*
1057 * STATE intermediate state
1058 * ...argument 0 is state code
1059 */
1060 status = altera_goto_jstate(astate, args[0]);
1061 break;
1062 case OP_ST:
1063 /*
1064 * STATE final state
1065 * ...argument 0 is state code
1066 */
1067 status = altera_goto_jstate(astate, args[0]);
1068 break;
1069 case OP_ISTP:
1070 /*
1071 * IRSTOP state
1072 * ...argument 0 is state code
1073 */
1074 status = altera_set_irstop(&astate->js, args[0]);
1075 break;
1076 case OP_DSTP:
1077 /*
1078 * DRSTOP state
1079 * ...argument 0 is state code
1080 */
1081 status = altera_set_drstop(&astate->js, args[0]);
1082 break;
1083
1084 case OP_SWPN:
1085 /*
1086 * Exchange top with Nth stack value
1087 * ...argument 0 is 0-based stack entry
1088 * to swap with top element
1089 */
1090 index = (args[0]) + 1;
1091 if (altera_check_stack(stack_ptr, index, &status)) {
1092 long_tmp = stack[stack_ptr - index];
1093 stack[stack_ptr - index] = stack[stack_ptr - 1];
1094 stack[stack_ptr - 1] = long_tmp;
1095 }
1096 break;
1097 case OP_DUPN:
1098 /*
1099 * Duplicate Nth stack value
1100 * ...argument 0 is 0-based stack entry to duplicate
1101 */
1102 index = (args[0]) + 1;
1103 if (altera_check_stack(stack_ptr, index, &status)) {
1104 stack[stack_ptr] = stack[stack_ptr - index];
1105 ++stack_ptr;
1106 }
1107 break;
1108 case OP_POPV:
1109 /*
1110 * Pop stack into scalar variable
1111 * ...argument 0 is variable ID
1112 * ...stack 0 is value
1113 */
1114 if (altera_check_stack(stack_ptr, 1, &status))
1115 vars[args[0]] = stack[--stack_ptr];
1116
1117 break;
1118 case OP_POPE:
1119 /*
1120 * Pop stack into integer array element
1121 * ...argument 0 is variable ID
1122 * ...stack 0 is array index
1123 * ...stack 1 is value
1124 */
1125 if (!altera_check_stack(stack_ptr, 2, &status))
1126 break;
1127 variable_id = args[0];
1128
1129 /*
1130 * If variable is read-only,
1131 * convert to writable array
1132 */
1133 if ((version > 0) &&
1134 ((attrs[variable_id] & 0x9c) == 0x1c)) {
1135 /* Allocate a writable buffer for this array */
1136 count = var_size[variable_id];
1137 long_tmp = vars[variable_id];
1138 longptr_tmp = kzalloc(count * sizeof(long),
1139 GFP_KERNEL);
1140 vars[variable_id] = (long)longptr_tmp;
1141
1142 if (vars[variable_id] == 0) {
1143 status = -ENOMEM;
1144 break;
1145 }
1146
1147 /* copy previous contents into buffer */
1148 for (i = 0; i < count; ++i) {
1149 longptr_tmp[i] =
1150 get_unaligned_be32(&p[long_tmp]);
1151 long_tmp += sizeof(long);
1152 }
1153
1154 /*
1155 * set bit 7 - buffer was
1156 * dynamically allocated
1157 */
1158 attrs[variable_id] |= 0x80;
1159
1160 /* clear bit 2 - variable is writable */
1161 attrs[variable_id] &= ~0x04;
1162 attrs[variable_id] |= 0x01;
1163
1164 }
1165
1166 /* check that variable is a writable integer array */
1167 if ((attrs[variable_id] & 0x1c) != 0x18)
1168 status = -ERANGE;
1169 else {
1170 longptr_tmp = (long *)vars[variable_id];
1171
1172 /* pop the array index */
1173 index = stack[--stack_ptr];
1174
1175 /* pop the value and store it into the array */
1176 longptr_tmp[index] = stack[--stack_ptr];
1177 }
1178
1179 break;
1180 case OP_POPA:
1181 /*
1182 * Pop stack into Boolean array
1183 * ...argument 0 is variable ID
1184 * ...stack 0 is count
1185 * ...stack 1 is array index
1186 * ...stack 2 is value
1187 */
1188 if (!altera_check_stack(stack_ptr, 3, &status))
1189 break;
1190 variable_id = args[0];
1191
1192 /*
1193 * If variable is read-only,
1194 * convert to writable array
1195 */
1196 if ((version > 0) &&
1197 ((attrs[variable_id] & 0x9c) == 0x0c)) {
1198 /* Allocate a writable buffer for this array */
1199 long_tmp =
1200 (var_size[variable_id] + 7L) >> 3L;
1201 charptr_tmp2 = (u8 *)vars[variable_id];
1202 charptr_tmp =
1203 kzalloc(long_tmp, GFP_KERNEL);
1204 vars[variable_id] = (long)charptr_tmp;
1205
1206 if (vars[variable_id] == 0) {
1207 status = -ENOMEM;
1208 break;
1209 }
1210
1211 /* zero the buffer */
1212 for (long_idx = 0L;
1213 long_idx < long_tmp;
1214 ++long_idx) {
1215 charptr_tmp[long_idx] = 0;
1216 }
1217
1218 /* copy previous contents into buffer */
1219 for (long_idx = 0L;
1220 long_idx < var_size[variable_id];
1221 ++long_idx) {
1222 long_idx2 = long_idx;
1223
1224 if (charptr_tmp2[long_idx2 >> 3] &
1225 (1 << (long_idx2 & 7))) {
1226 charptr_tmp[long_idx >> 3] |=
1227 (1 << (long_idx & 7));
1228 }
1229 }
1230
1231 /*
1232 * set bit 7 - buffer was
1233 * dynamically allocated
1234 */
1235 attrs[variable_id] |= 0x80;
1236
1237 /* clear bit 2 - variable is writable */
1238 attrs[variable_id] &= ~0x04;
1239 attrs[variable_id] |= 0x01;
1240
1241 }
1242
1243 /*
1244 * check that variable is
1245 * a writable Boolean array
1246 */
1247 if ((attrs[variable_id] & 0x1c) != 0x08) {
1248 status = -ERANGE;
1249 break;
1250 }
1251
1252 charptr_tmp = (u8 *)vars[variable_id];
1253
1254 /* pop the count (number of bits to copy) */
1255 long_count = stack[--stack_ptr];
1256
1257 /* pop the array index */
1258 long_idx = stack[--stack_ptr];
1259
1260 reverse = 0;
1261
1262 if (version > 0) {
1263 /*
1264 * stack 0 = array right index
1265 * stack 1 = array left index
1266 */
1267
1268 if (long_idx > long_count) {
1269 reverse = 1;
1270 long_tmp = long_count;
1271 long_count = 1 + long_idx -
1272 long_count;
1273 long_idx = long_tmp;
1274
1275 /* reverse POPA is not supported */
1276 status = -ERANGE;
1277 break;
1278 } else
1279 long_count = 1 + long_count -
1280 long_idx;
1281
1282 }
1283
1284 /* pop the data */
1285 long_tmp = stack[--stack_ptr];
1286
1287 if (long_count < 1) {
1288 status = -ERANGE;
1289 break;
1290 }
1291
1292 for (i = 0; i < long_count; ++i) {
1293 if (long_tmp & (1L << (s32) i))
1294 charptr_tmp[long_idx >> 3L] |=
1295 (1L << (long_idx & 7L));
1296 else
1297 charptr_tmp[long_idx >> 3L] &=
1298 ~(1L << (long_idx & 7L));
1299
1300 ++long_idx;
1301 }
1302
1303 break;
1304 case OP_JMPZ:
1305 /*
1306 * Pop stack and branch if zero
1307 * ...argument 0 is address
1308 * ...stack 0 is condition value
1309 */
1310 if (altera_check_stack(stack_ptr, 1, &status)) {
1311 if (stack[--stack_ptr] == 0) {
1312 pc = args[0] + code_sect;
1313 if ((pc < code_sect) ||
1314 (pc >= debug_sect))
1315 status = -ERANGE;
1316 }
1317 }
1318 break;
1319 case OP_DS:
1320 case OP_IS:
1321 /*
1322 * DRSCAN
1323 * IRSCAN
1324 * ...argument 0 is scan data variable ID
1325 * ...stack 0 is array index
1326 * ...stack 1 is count
1327 */
1328 if (!altera_check_stack(stack_ptr, 2, &status))
1329 break;
1330 long_idx = stack[--stack_ptr];
1331 long_count = stack[--stack_ptr];
1332 reverse = 0;
1333 if (version > 0) {
1334 /*
1335 * stack 0 = array right index
1336 * stack 1 = array left index
1337 * stack 2 = count
1338 */
1339 long_tmp = long_count;
1340 long_count = stack[--stack_ptr];
1341
1342 if (long_idx > long_tmp) {
1343 reverse = 1;
1344 long_idx = long_tmp;
1345 }
1346 }
1347
1348 charptr_tmp = (u8 *)vars[args[0]];
1349
1350 if (reverse) {
1351 /*
1352 * allocate a buffer
1353 * and reverse the data order
1354 */
1355 charptr_tmp2 = charptr_tmp;
1356 charptr_tmp = kzalloc((long_count >> 3) + 1,
1357 GFP_KERNEL);
1358 if (charptr_tmp == NULL) {
1359 status = -ENOMEM;
1360 break;
1361 }
1362
1363 long_tmp = long_idx + long_count - 1;
1364 long_idx2 = 0;
1365 while (long_idx2 < long_count) {
1366 if (charptr_tmp2[long_tmp >> 3] &
1367 (1 << (long_tmp & 7)))
1368 charptr_tmp[long_idx2 >> 3] |=
1369 (1 << (long_idx2 & 7));
1370 else
1371 charptr_tmp[long_idx2 >> 3] &=
1372 ~(1 << (long_idx2 & 7));
1373
1374 --long_tmp;
1375 ++long_idx2;
1376 }
1377 }
1378
1379 if (opcode == 0x51) /* DS */
1380 status = altera_drscan(astate, long_count,
1381 charptr_tmp, long_idx);
1382 else /* IS */
1383 status = altera_irscan(astate, long_count,
1384 charptr_tmp, long_idx);
1385
1386 if (reverse)
1387 kfree(charptr_tmp);
1388
1389 break;
1390 case OP_DPRA:
1391 /*
1392 * DRPRE with array data
1393 * ...argument 0 is variable ID
1394 * ...stack 0 is array index
1395 * ...stack 1 is count
1396 */
1397 if (!altera_check_stack(stack_ptr, 2, &status))
1398 break;
1399 index = stack[--stack_ptr];
1400 count = stack[--stack_ptr];
1401
1402 if (version > 0)
1403 /*
1404 * stack 0 = array right index
1405 * stack 1 = array left index
1406 */
1407 count = 1 + count - index;
1408
1409 charptr_tmp = (u8 *)vars[args[0]];
1410 status = altera_set_dr_pre(&astate->js, count, index,
1411 charptr_tmp);
1412 break;
1413 case OP_DPOA:
1414 /*
1415 * DRPOST with array data
1416 * ...argument 0 is variable ID
1417 * ...stack 0 is array index
1418 * ...stack 1 is count
1419 */
1420 if (!altera_check_stack(stack_ptr, 2, &status))
1421 break;
1422 index = stack[--stack_ptr];
1423 count = stack[--stack_ptr];
1424
1425 if (version > 0)
1426 /*
1427 * stack 0 = array right index
1428 * stack 1 = array left index
1429 */
1430 count = 1 + count - index;
1431
1432 charptr_tmp = (u8 *)vars[args[0]];
1433 status = altera_set_dr_post(&astate->js, count, index,
1434 charptr_tmp);
1435 break;
1436 case OP_IPRA:
1437 /*
1438 * IRPRE with array data
1439 * ...argument 0 is variable ID
1440 * ...stack 0 is array index
1441 * ...stack 1 is count
1442 */
1443 if (!altera_check_stack(stack_ptr, 2, &status))
1444 break;
1445 index = stack[--stack_ptr];
1446 count = stack[--stack_ptr];
1447
1448 if (version > 0)
1449 /*
1450 * stack 0 = array right index
1451 * stack 1 = array left index
1452 */
1453 count = 1 + count - index;
1454
1455 charptr_tmp = (u8 *)vars[args[0]];
1456 status = altera_set_ir_pre(&astate->js, count, index,
1457 charptr_tmp);
1458
1459 break;
1460 case OP_IPOA:
1461 /*
1462 * IRPOST with array data
1463 * ...argument 0 is variable ID
1464 * ...stack 0 is array index
1465 * ...stack 1 is count
1466 */
1467 if (!altera_check_stack(stack_ptr, 2, &status))
1468 break;
1469 index = stack[--stack_ptr];
1470 count = stack[--stack_ptr];
1471
1472 if (version > 0)
1473 /*
1474 * stack 0 = array right index
1475 * stack 1 = array left index
1476 */
1477 count = 1 + count - index;
1478
1479 charptr_tmp = (u8 *)vars[args[0]];
1480 status = altera_set_ir_post(&astate->js, count, index,
1481 charptr_tmp);
1482
1483 break;
1484 case OP_EXPT:
1485 /*
1486 * EXPORT
1487 * ...argument 0 is string ID
1488 * ...stack 0 is integer expression
1489 */
1490 if (altera_check_stack(stack_ptr, 1, &status)) {
1491 name = &p[str_table + args[0]];
1492 long_tmp = stack[--stack_ptr];
1493 altera_export_int(name, long_tmp);
1494 }
1495 break;
1496 case OP_PSHE:
1497 /*
1498 * Push integer array element
1499 * ...argument 0 is variable ID
1500 * ...stack 0 is array index
1501 */
1502 if (!altera_check_stack(stack_ptr, 1, &status))
1503 break;
1504 variable_id = args[0];
1505 index = stack[stack_ptr - 1];
1506
1507 /* check variable type */
1508 if ((attrs[variable_id] & 0x1f) == 0x19) {
1509 /* writable integer array */
1510 longptr_tmp = (long *)vars[variable_id];
1511 stack[stack_ptr - 1] = longptr_tmp[index];
1512 } else if ((attrs[variable_id] & 0x1f) == 0x1c) {
1513 /* read-only integer array */
1514 long_tmp = vars[variable_id] +
1515 (index * sizeof(long));
1516 stack[stack_ptr - 1] =
1517 get_unaligned_be32(&p[long_tmp]);
1518 } else
1519 status = -ERANGE;
1520
1521 break;
1522 case OP_PSHA:
1523 /*
1524 * Push Boolean array
1525 * ...argument 0 is variable ID
1526 * ...stack 0 is count
1527 * ...stack 1 is array index
1528 */
1529 if (!altera_check_stack(stack_ptr, 2, &status))
1530 break;
1531 variable_id = args[0];
1532
1533 /* check that variable is a Boolean array */
1534 if ((attrs[variable_id] & 0x18) != 0x08) {
1535 status = -ERANGE;
1536 break;
1537 }
1538
1539 charptr_tmp = (u8 *)vars[variable_id];
1540
1541 /* pop the count (number of bits to copy) */
1542 count = stack[--stack_ptr];
1543
1544 /* pop the array index */
1545 index = stack[stack_ptr - 1];
1546
1547 if (version > 0)
1548 /*
1549 * stack 0 = array right index
1550 * stack 1 = array left index
1551 */
1552 count = 1 + count - index;
1553
1554 if ((count < 1) || (count > 32)) {
1555 status = -ERANGE;
1556 break;
1557 }
1558
1559 long_tmp = 0L;
1560
1561 for (i = 0; i < count; ++i)
1562 if (charptr_tmp[(i + index) >> 3] &
1563 (1 << ((i + index) & 7)))
1564 long_tmp |= (1L << i);
1565
1566 stack[stack_ptr - 1] = long_tmp;
1567
1568 break;
1569 case OP_DYNA:
1570 /*
1571 * Dynamically change size of array
1572 * ...argument 0 is variable ID
1573 * ...stack 0 is new size
1574 */
1575 if (!altera_check_stack(stack_ptr, 1, &status))
1576 break;
1577 variable_id = args[0];
1578 long_tmp = stack[--stack_ptr];
1579
1580 if (long_tmp > var_size[variable_id]) {
1581 var_size[variable_id] = long_tmp;
1582
1583 if (attrs[variable_id] & 0x10)
1584 /* allocate integer array */
1585 long_tmp *= sizeof(long);
1586 else
1587 /* allocate Boolean array */
1588 long_tmp = (long_tmp + 7) >> 3;
1589
1590 /*
1591 * If the buffer was previously allocated,
1592 * free it
1593 */
1594 if (attrs[variable_id] & 0x80) {
1595 kfree((void *)vars[variable_id]);
1596 vars[variable_id] = 0;
1597 }
1598
1599 /*
1600 * Allocate a new buffer
1601 * of the requested size
1602 */
1603 vars[variable_id] = (long)
1604 kzalloc(long_tmp, GFP_KERNEL);
1605
1606 if (vars[variable_id] == 0) {
1607 status = -ENOMEM;
1608 break;
1609 }
1610
1611 /*
1612 * Set the attribute bit to indicate that
1613 * this buffer was dynamically allocated and
1614 * should be freed later
1615 */
1616 attrs[variable_id] |= 0x80;
1617
1618 /* zero out memory */
1619 count = ((var_size[variable_id] + 7L) /
1620 8L);
1621 charptr_tmp = (u8 *)(vars[variable_id]);
1622 for (index = 0; index < count; ++index)
1623 charptr_tmp[index] = 0;
1624
1625 }
1626
1627 break;
1628 case OP_EXPV:
1629 /*
1630 * Export Boolean array
1631 * ...argument 0 is string ID
1632 * ...stack 0 is variable ID
1633 * ...stack 1 is array right index
1634 * ...stack 2 is array left index
1635 */
1636 if (!altera_check_stack(stack_ptr, 3, &status))
1637 break;
1638 if (version == 0) {
1639 /* EXPV is not supported in JBC 1.0 */
1640 bad_opcode = 1;
1641 break;
1642 }
1643 name = &p[str_table + args[0]];
1644 variable_id = stack[--stack_ptr];
1645 long_idx = stack[--stack_ptr];/* right indx */
1646 long_idx2 = stack[--stack_ptr];/* left indx */
1647
1648 if (long_idx > long_idx2) {
1649 /* reverse indices not supported */
1650 status = -ERANGE;
1651 break;
1652 }
1653
1654 long_count = 1 + long_idx2 - long_idx;
1655
1656 charptr_tmp = (u8 *)vars[variable_id];
1657 charptr_tmp2 = NULL;
1658
1659 if ((long_idx & 7L) != 0) {
1660 s32 k = long_idx;
1661 charptr_tmp2 =
1662 kzalloc(((long_count + 7L) / 8L),
1663 GFP_KERNEL);
1664 if (charptr_tmp2 == NULL) {
1665 status = -ENOMEM;
1666 break;
1667 }
1668
1669 for (i = 0; i < long_count; ++i) {
1670 if (charptr_tmp[k >> 3] &
1671 (1 << (k & 7)))
1672 charptr_tmp2[i >> 3] |=
1673 (1 << (i & 7));
1674 else
1675 charptr_tmp2[i >> 3] &=
1676 ~(1 << (i & 7));
1677
1678 ++k;
1679 }
1680 charptr_tmp = charptr_tmp2;
1681
1682 } else if (long_idx != 0)
1683 charptr_tmp = &charptr_tmp[long_idx >> 3];
1684
1685 altera_export_bool_array(name, charptr_tmp,
1686 long_count);
1687
1688 /* free allocated buffer */
1689 if ((long_idx & 7L) != 0)
1690 kfree(charptr_tmp2);
1691
1692 break;
1693 case OP_COPY: {
1694 /*
1695 * Array copy
1696 * ...argument 0 is dest ID
1697 * ...argument 1 is source ID
1698 * ...stack 0 is count
1699 * ...stack 1 is dest index
1700 * ...stack 2 is source index
1701 */
1702 s32 copy_count;
1703 s32 copy_index;
1704 s32 copy_index2;
1705 s32 destleft;
1706 s32 src_count;
1707 s32 dest_count;
1708 int src_reverse = 0;
1709 int dest_reverse = 0;
1710
1711 if (!altera_check_stack(stack_ptr, 3, &status))
1712 break;
1713
1714 copy_count = stack[--stack_ptr];
1715 copy_index = stack[--stack_ptr];
1716 copy_index2 = stack[--stack_ptr];
1717 reverse = 0;
1718
1719 if (version > 0) {
1720 /*
1721 * stack 0 = source right index
1722 * stack 1 = source left index
1723 * stack 2 = destination right index
1724 * stack 3 = destination left index
1725 */
1726 destleft = stack[--stack_ptr];
1727
1728 if (copy_count > copy_index) {
1729 src_reverse = 1;
1730 reverse = 1;
1731 src_count = 1 + copy_count - copy_index;
1732 /* copy_index = source start index */
1733 } else {
1734 src_count = 1 + copy_index - copy_count;
1735 /* source start index */
1736 copy_index = copy_count;
1737 }
1738
1739 if (copy_index2 > destleft) {
1740 dest_reverse = 1;
1741 reverse = !reverse;
1742 dest_count = 1 + copy_index2 - destleft;
1743 /* destination start index */
1744 copy_index2 = destleft;
1745 } else
1746 dest_count = 1 + destleft - copy_index2;
1747
1748 copy_count = (src_count < dest_count) ?
1749 src_count : dest_count;
1750
1751 if ((src_reverse || dest_reverse) &&
1752 (src_count != dest_count))
1753 /*
1754 * If either the source or destination
1755 * is reversed, we can't tolerate
1756 * a length mismatch, because we
1757 * "left justify" arrays when copying.
1758 * This won't work correctly
1759 * with reversed arrays.
1760 */
1761 status = -ERANGE;
1762
1763 }
1764
1765 count = copy_count;
1766 index = copy_index;
1767 index2 = copy_index2;
1768
1769 /*
1770 * If destination is a read-only array,
1771 * allocate a buffer and convert it to a writable array
1772 */
1773 variable_id = args[1];
1774 if ((version > 0) &&
1775 ((attrs[variable_id] & 0x9c) == 0x0c)) {
1776 /* Allocate a writable buffer for this array */
1777 long_tmp =
1778 (var_size[variable_id] + 7L) >> 3L;
1779 charptr_tmp2 = (u8 *)vars[variable_id];
1780 charptr_tmp =
1781 kzalloc(long_tmp, GFP_KERNEL);
1782 vars[variable_id] = (long)charptr_tmp;
1783
1784 if (vars[variable_id] == 0) {
1785 status = -ENOMEM;
1786 break;
1787 }
1788
1789 /* zero the buffer */
1790 for (long_idx = 0L; long_idx < long_tmp;
1791 ++long_idx)
1792 charptr_tmp[long_idx] = 0;
1793
1794 /* copy previous contents into buffer */
1795 for (long_idx = 0L;
1796 long_idx < var_size[variable_id];
1797 ++long_idx) {
1798 long_idx2 = long_idx;
1799
1800 if (charptr_tmp2[long_idx2 >> 3] &
1801 (1 << (long_idx2 & 7)))
1802 charptr_tmp[long_idx >> 3] |=
1803 (1 << (long_idx & 7));
1804
1805 }
1806
1807 /*
1808 set bit 7 - buffer was dynamically allocated */
1809 attrs[variable_id] |= 0x80;
1810
1811 /* clear bit 2 - variable is writable */
1812 attrs[variable_id] &= ~0x04;
1813 attrs[variable_id] |= 0x01;
1814 }
1815
1816 charptr_tmp = (u8 *)vars[args[1]];
1817 charptr_tmp2 = (u8 *)vars[args[0]];
1818
1819 /* check if destination is a writable Boolean array */
1820 if ((attrs[args[1]] & 0x1c) != 0x08) {
1821 status = -ERANGE;
1822 break;
1823 }
1824
1825 if (count < 1) {
1826 status = -ERANGE;
1827 break;
1828 }
1829
1830 if (reverse)
1831 index2 += (count - 1);
1832
1833 for (i = 0; i < count; ++i) {
1834 if (charptr_tmp2[index >> 3] &
1835 (1 << (index & 7)))
1836 charptr_tmp[index2 >> 3] |=
1837 (1 << (index2 & 7));
1838 else
1839 charptr_tmp[index2 >> 3] &=
1840 ~(1 << (index2 & 7));
1841
1842 ++index;
1843 if (reverse)
1844 --index2;
1845 else
1846 ++index2;
1847 }
1848
1849 break;
1850 }
1851 case OP_DSC:
1852 case OP_ISC: {
1853 /*
1854 * DRSCAN with capture
1855 * IRSCAN with capture
1856 * ...argument 0 is scan data variable ID
1857 * ...argument 1 is capture variable ID
1858 * ...stack 0 is capture index
1859 * ...stack 1 is scan data index
1860 * ...stack 2 is count
1861 */
1862 s32 scan_right, scan_left;
1863 s32 capture_count = 0;
1864 s32 scan_count = 0;
1865 s32 capture_index;
1866 s32 scan_index;
1867
1868 if (!altera_check_stack(stack_ptr, 3, &status))
1869 break;
1870
1871 capture_index = stack[--stack_ptr];
1872 scan_index = stack[--stack_ptr];
1873
1874 if (version > 0) {
1875 /*
1876 * stack 0 = capture right index
1877 * stack 1 = capture left index
1878 * stack 2 = scan right index
1879 * stack 3 = scan left index
1880 * stack 4 = count
1881 */
1882 scan_right = stack[--stack_ptr];
1883 scan_left = stack[--stack_ptr];
1884 capture_count = 1 + scan_index - capture_index;
1885 scan_count = 1 + scan_left - scan_right;
1886 scan_index = scan_right;
1887 }
1888
1889 long_count = stack[--stack_ptr];
1890 /*
1891 * If capture array is read-only, allocate a buffer
1892 * and convert it to a writable array
1893 */
1894 variable_id = args[1];
1895 if ((version > 0) &&
1896 ((attrs[variable_id] & 0x9c) == 0x0c)) {
1897 /* Allocate a writable buffer for this array */
1898 long_tmp =
1899 (var_size[variable_id] + 7L) >> 3L;
1900 charptr_tmp2 = (u8 *)vars[variable_id];
1901 charptr_tmp =
1902 kzalloc(long_tmp, GFP_KERNEL);
1903 vars[variable_id] = (long)charptr_tmp;
1904
1905 if (vars[variable_id] == 0) {
1906 status = -ENOMEM;
1907 break;
1908 }
1909
1910 /* zero the buffer */
1911 for (long_idx = 0L; long_idx < long_tmp;
1912 ++long_idx)
1913 charptr_tmp[long_idx] = 0;
1914
1915 /* copy previous contents into buffer */
1916 for (long_idx = 0L;
1917 long_idx < var_size[variable_id];
1918 ++long_idx) {
1919 long_idx2 = long_idx;
1920
1921 if (charptr_tmp2[long_idx2 >> 3] &
1922 (1 << (long_idx2 & 7)))
1923 charptr_tmp[long_idx >> 3] |=
1924 (1 << (long_idx & 7));
1925
1926 }
1927
1928 /*
1929 * set bit 7 - buffer was
1930 * dynamically allocated
1931 */
1932 attrs[variable_id] |= 0x80;
1933
1934 /* clear bit 2 - variable is writable */
1935 attrs[variable_id] &= ~0x04;
1936 attrs[variable_id] |= 0x01;
1937
1938 }
1939
1940 charptr_tmp = (u8 *)vars[args[0]];
1941 charptr_tmp2 = (u8 *)vars[args[1]];
1942
1943 if ((version > 0) &&
1944 ((long_count > capture_count) ||
1945 (long_count > scan_count))) {
1946 status = -ERANGE;
1947 break;
1948 }
1949
1950 /*
1951 * check that capture array
1952 * is a writable Boolean array
1953 */
1954 if ((attrs[args[1]] & 0x1c) != 0x08) {
1955 status = -ERANGE;
1956 break;
1957 }
1958
1959 if (status == 0) {
1960 if (opcode == 0x82) /* DSC */
1961 status = altera_swap_dr(astate,
1962 long_count,
1963 charptr_tmp,
1964 scan_index,
1965 charptr_tmp2,
1966 capture_index);
1967 else /* ISC */
1968 status = altera_swap_ir(astate,
1969 long_count,
1970 charptr_tmp,
1971 scan_index,
1972 charptr_tmp2,
1973 capture_index);
1974
1975 }
1976
1977 break;
1978 }
1979 case OP_WAIT:
1980 /*
1981 * WAIT
1982 * ...argument 0 is wait state
1983 * ...argument 1 is end state
1984 * ...stack 0 is cycles
1985 * ...stack 1 is microseconds
1986 */
1987 if (!altera_check_stack(stack_ptr, 2, &status))
1988 break;
1989 long_tmp = stack[--stack_ptr];
1990
1991 if (long_tmp != 0L)
1992 status = altera_wait_cycles(astate, long_tmp,
1993 args[0]);
1994
1995 long_tmp = stack[--stack_ptr];
1996
1997 if ((status == 0) && (long_tmp != 0L))
1998 status = altera_wait_msecs(astate,
1999 long_tmp,
2000 args[0]);
2001
2002 if ((status == 0) && (args[1] != args[0]))
2003 status = altera_goto_jstate(astate,
2004 args[1]);
2005
2006 if (version > 0) {
2007 --stack_ptr; /* throw away MAX cycles */
2008 --stack_ptr; /* throw away MAX microseconds */
2009 }
2010 break;
2011 case OP_CMPA: {
2012 /*
2013 * Array compare
2014 * ...argument 0 is source 1 ID
2015 * ...argument 1 is source 2 ID
2016 * ...argument 2 is mask ID
2017 * ...stack 0 is source 1 index
2018 * ...stack 1 is source 2 index
2019 * ...stack 2 is mask index
2020 * ...stack 3 is count
2021 */
2022 s32 a, b;
2023 u8 *source1 = (u8 *)vars[args[0]];
2024 u8 *source2 = (u8 *)vars[args[1]];
2025 u8 *mask = (u8 *)vars[args[2]];
2026 u32 index1;
2027 u32 index2;
2028 u32 mask_index;
2029
2030 if (!altera_check_stack(stack_ptr, 4, &status))
2031 break;
2032
2033 index1 = stack[--stack_ptr];
2034 index2 = stack[--stack_ptr];
2035 mask_index = stack[--stack_ptr];
2036 long_count = stack[--stack_ptr];
2037
2038 if (version > 0) {
2039 /*
2040 * stack 0 = source 1 right index
2041 * stack 1 = source 1 left index
2042 * stack 2 = source 2 right index
2043 * stack 3 = source 2 left index
2044 * stack 4 = mask right index
2045 * stack 5 = mask left index
2046 */
2047 s32 mask_right = stack[--stack_ptr];
2048 s32 mask_left = stack[--stack_ptr];
2049 /* source 1 count */
2050 a = 1 + index2 - index1;
2051 /* source 2 count */
2052 b = 1 + long_count - mask_index;
2053 a = (a < b) ? a : b;
2054 /* mask count */
2055 b = 1 + mask_left - mask_right;
2056 a = (a < b) ? a : b;
2057 /* source 2 start index */
2058 index2 = mask_index;
2059 /* mask start index */
2060 mask_index = mask_right;
2061 long_count = a;
2062 }
2063
2064 long_tmp = 1L;
2065
2066 if (long_count < 1)
2067 status = -ERANGE;
2068 else {
2069 count = long_count;
2070
2071 for (i = 0; i < count; ++i) {
2072 if (mask[mask_index >> 3] &
2073 (1 << (mask_index & 7))) {
2074 a = source1[index1 >> 3] &
2075 (1 << (index1 & 7))
2076 ? 1 : 0;
2077 b = source2[index2 >> 3] &
2078 (1 << (index2 & 7))
2079 ? 1 : 0;
2080
2081 if (a != b) /* failure */
2082 long_tmp = 0L;
2083 }
2084 ++index1;
2085 ++index2;
2086 ++mask_index;
2087 }
2088 }
2089
2090 stack[stack_ptr++] = long_tmp;
2091
2092 break;
2093 }
2094 default:
2095 /* Unrecognized opcode -- ERROR! */
2096 bad_opcode = 1;
2097 break;
2098 }
2099
2100 if (bad_opcode)
2101 status = -ENOSYS;
2102
2103 if ((stack_ptr < 0) || (stack_ptr >= ALTERA_STACK_SIZE))
2104 status = -EOVERFLOW;
2105
2106 if (status != 0) {
2107 done = 1;
2108 *error_address = (s32)(opcode_address - code_sect);
2109 }
2110 }
2111
2112 altera_free_buffers(astate);
2113
2114 /* Free all dynamically allocated arrays */
2115 if ((attrs != NULL) && (vars != NULL))
2116 for (i = 0; i < sym_count; ++i)
2117 if (attrs[i] & 0x80)
2118 kfree((void *)vars[i]);
2119
2120 kfree(vars);
2121 kfree(var_size);
2122 kfree(attrs);
2123 kfree(proc_attributes);
2124
2125 return status;
2126 }
2127
2128 static int altera_get_note(u8 *p, s32 program_size,
2129 s32 *offset, char *key, char *value, int length)
2130 /*
2131 * Gets key and value of NOTE fields in the JBC file.
2132 * Can be called in two modes: if offset pointer is NULL,
2133 * then the function searches for note fields which match
2134 * the key string provided. If offset is not NULL, then
2135 * the function finds the next note field of any key,
2136 * starting at the offset specified by the offset pointer.
2137 * Returns 0 for success, else appropriate error code
2138 */
2139 {
2140 int status = -ENODATA;
2141 u32 note_strings = 0L;
2142 u32 note_table = 0L;
2143 u32 note_count = 0L;
2144 u32 first_word = 0L;
2145 int version = 0;
2146 int delta = 0;
2147 char *key_ptr;
2148 char *value_ptr;
2149 int i;
2150
2151 /* Read header information */
2152 if (program_size > 52L) {
2153 first_word = get_unaligned_be32(&p[0]);
2154 version = (first_word & 1L);
2155 delta = version * 8;
2156
2157 note_strings = get_unaligned_be32(&p[8 + delta]);
2158 note_table = get_unaligned_be32(&p[12 + delta]);
2159 note_count = get_unaligned_be32(&p[44 + (2 * delta)]);
2160 }
2161
2162 if ((first_word != 0x4A414D00L) && (first_word != 0x4A414D01L))
2163 return -EIO;
2164
2165 if (note_count <= 0L)
2166 return status;
2167
2168 if (offset == NULL) {
2169 /*
2170 * We will search for the first note with a specific key,
2171 * and return only the value
2172 */
2173 for (i = 0; (i < note_count) &&
2174 (status != 0); ++i) {
2175 key_ptr = &p[note_strings +
2176 get_unaligned_be32(
2177 &p[note_table + (8 * i)])];
2178 if ((strnicmp(key, key_ptr, strlen(key_ptr)) == 0) &&
2179 (key != NULL)) {
2180 status = 0;
2181
2182 value_ptr = &p[note_strings +
2183 get_unaligned_be32(
2184 &p[note_table + (8 * i) + 4])];
2185
2186 if (value != NULL)
2187 strlcpy(value, value_ptr, length);
2188
2189 }
2190 }
2191 } else {
2192 /*
2193 * We will search for the next note, regardless of the key,
2194 * and return both the value and the key
2195 */
2196
2197 i = *offset;
2198
2199 if ((i >= 0) && (i < note_count)) {
2200 status = 0;
2201
2202 if (key != NULL)
2203 strlcpy(key, &p[note_strings +
2204 get_unaligned_be32(
2205 &p[note_table + (8 * i)])],
2206 length);
2207
2208 if (value != NULL)
2209 strlcpy(value, &p[note_strings +
2210 get_unaligned_be32(
2211 &p[note_table + (8 * i) + 4])],
2212 length);
2213
2214 *offset = i + 1;
2215 }
2216 }
2217
2218 return status;
2219 }
2220
2221 static int altera_check_crc(u8 *p, s32 program_size)
2222 {
2223 int status = 0;
2224 u16 local_expected = 0,
2225 local_actual = 0,
2226 shift_reg = 0xffff;
2227 int bit, feedback;
2228 u8 databyte;
2229 u32 i;
2230 u32 crc_section = 0L;
2231 u32 first_word = 0L;
2232 int version = 0;
2233 int delta = 0;
2234
2235 if (program_size > 52L) {
2236 first_word = get_unaligned_be32(&p[0]);
2237 version = (first_word & 1L);
2238 delta = version * 8;
2239
2240 crc_section = get_unaligned_be32(&p[32 + delta]);
2241 }
2242
2243 if ((first_word != 0x4A414D00L) && (first_word != 0x4A414D01L))
2244 status = -EIO;
2245
2246 if (crc_section >= program_size)
2247 status = -EIO;
2248
2249 if (status == 0) {
2250 local_expected = (u16)get_unaligned_be16(&p[crc_section]);
2251
2252 for (i = 0; i < crc_section; ++i) {
2253 databyte = p[i];
2254 for (bit = 0; bit < 8; bit++) {
2255 feedback = (databyte ^ shift_reg) & 0x01;
2256 shift_reg >>= 1;
2257 if (feedback)
2258 shift_reg ^= 0x8408;
2259
2260 databyte >>= 1;
2261 }
2262 }
2263
2264 local_actual = (u16)~shift_reg;
2265
2266 if (local_expected != local_actual)
2267 status = -EILSEQ;
2268
2269 }
2270
2271 if (debug || status) {
2272 switch (status) {
2273 case 0:
2274 printk(KERN_INFO "%s: CRC matched: %04x\n", __func__,
2275 local_actual);
2276 break;
2277 case -EILSEQ:
2278 printk(KERN_ERR "%s: CRC mismatch: expected %04x, "
2279 "actual %04x\n", __func__, local_expected,
2280 local_actual);
2281 break;
2282 case -ENODATA:
2283 printk(KERN_ERR "%s: expected CRC not found, "
2284 "actual CRC = %04x\n", __func__,
2285 local_actual);
2286 break;
2287 case -EIO:
2288 printk(KERN_ERR "%s: error: format isn't "
2289 "recognized.\n", __func__);
2290 break;
2291 default:
2292 printk(KERN_ERR "%s: CRC function returned error "
2293 "code %d\n", __func__, status);
2294 break;
2295 }
2296 }
2297
2298 return status;
2299 }
2300
2301 static int altera_get_file_info(u8 *p,
2302 s32 program_size,
2303 int *format_version,
2304 int *action_count,
2305 int *procedure_count)
2306 {
2307 int status = -EIO;
2308 u32 first_word = 0;
2309 int version = 0;
2310
2311 if (program_size <= 52L)
2312 return status;
2313
2314 first_word = get_unaligned_be32(&p[0]);
2315
2316 if ((first_word == 0x4A414D00L) || (first_word == 0x4A414D01L)) {
2317 status = 0;
2318
2319 version = (first_word & 1L);
2320 *format_version = version + 1;
2321
2322 if (version > 0) {
2323 *action_count = get_unaligned_be32(&p[48]);
2324 *procedure_count = get_unaligned_be32(&p[52]);
2325 }
2326 }
2327
2328 return status;
2329 }
2330
2331 static int altera_get_act_info(u8 *p,
2332 s32 program_size,
2333 int index,
2334 char **name,
2335 char **description,
2336 struct altera_procinfo **proc_list)
2337 {
2338 int status = -EIO;
2339 struct altera_procinfo *procptr = NULL;
2340 struct altera_procinfo *tmpptr = NULL;
2341 u32 first_word = 0L;
2342 u32 action_table = 0L;
2343 u32 proc_table = 0L;
2344 u32 str_table = 0L;
2345 u32 note_strings = 0L;
2346 u32 action_count = 0L;
2347 u32 proc_count = 0L;
2348 u32 act_name_id = 0L;
2349 u32 act_desc_id = 0L;
2350 u32 act_proc_id = 0L;
2351 u32 act_proc_name = 0L;
2352 u8 act_proc_attribute = 0;
2353
2354 if (program_size <= 52L)
2355 return status;
2356 /* Read header information */
2357 first_word = get_unaligned_be32(&p[0]);
2358
2359 if (first_word != 0x4A414D01L)
2360 return status;
2361
2362 action_table = get_unaligned_be32(&p[4]);
2363 proc_table = get_unaligned_be32(&p[8]);
2364 str_table = get_unaligned_be32(&p[12]);
2365 note_strings = get_unaligned_be32(&p[16]);
2366 action_count = get_unaligned_be32(&p[48]);
2367 proc_count = get_unaligned_be32(&p[52]);
2368
2369 if (index >= action_count)
2370 return status;
2371
2372 act_name_id = get_unaligned_be32(&p[action_table + (12 * index)]);
2373 act_desc_id = get_unaligned_be32(&p[action_table + (12 * index) + 4]);
2374 act_proc_id = get_unaligned_be32(&p[action_table + (12 * index) + 8]);
2375
2376 *name = &p[str_table + act_name_id];
2377
2378 if (act_desc_id < (note_strings - str_table))
2379 *description = &p[str_table + act_desc_id];
2380
2381 do {
2382 act_proc_name = get_unaligned_be32(
2383 &p[proc_table + (13 * act_proc_id)]);
2384 act_proc_attribute =
2385 (p[proc_table + (13 * act_proc_id) + 8] & 0x03);
2386
2387 procptr = (struct altera_procinfo *)
2388 kzalloc(sizeof(struct altera_procinfo),
2389 GFP_KERNEL);
2390
2391 if (procptr == NULL)
2392 status = -ENOMEM;
2393 else {
2394 procptr->name = &p[str_table + act_proc_name];
2395 procptr->attrs = act_proc_attribute;
2396 procptr->next = NULL;
2397
2398 /* add record to end of linked list */
2399 if (*proc_list == NULL)
2400 *proc_list = procptr;
2401 else {
2402 tmpptr = *proc_list;
2403 while (tmpptr->next != NULL)
2404 tmpptr = tmpptr->next;
2405 tmpptr->next = procptr;
2406 }
2407 }
2408
2409 act_proc_id = get_unaligned_be32(
2410 &p[proc_table + (13 * act_proc_id) + 4]);
2411 } while ((act_proc_id != 0) && (act_proc_id < proc_count));
2412
2413 return status;
2414 }
2415
2416 int altera_init(struct altera_config *config, const struct firmware *fw)
2417 {
2418 struct altera_state *astate = NULL;
2419 struct altera_procinfo *proc_list = NULL;
2420 struct altera_procinfo *procptr = NULL;
2421 char *key = NULL;
2422 char *value = NULL;
2423 char *action_name = NULL;
2424 char *description = NULL;
2425 int exec_result = 0;
2426 int exit_code = 0;
2427 int format_version = 0;
2428 int action_count = 0;
2429 int procedure_count = 0;
2430 int index = 0;
2431 s32 offset = 0L;
2432 s32 error_address = 0L;
2433 int retval = 0;
2434
2435 key = kzalloc(33, GFP_KERNEL);
2436 if (!key) {
2437 retval = -ENOMEM;
2438 goto out;
2439 }
2440 value = kzalloc(257, GFP_KERNEL);
2441 if (!value) {
2442 retval = -ENOMEM;
2443 goto free_key;
2444 }
2445 astate = kzalloc(sizeof(struct altera_state), GFP_KERNEL);
2446 if (!astate) {
2447 retval = -ENOMEM;
2448 goto free_value;
2449 }
2450
2451 astate->config = config;
2452 if (!astate->config->jtag_io) {
2453 dprintk(KERN_INFO "%s: using byteblaster!\n", __func__);
2454 astate->config->jtag_io = netup_jtag_io_lpt;
2455 }
2456
2457 altera_check_crc((u8 *)fw->data, fw->size);
2458
2459 if (debug) {
2460 altera_get_file_info((u8 *)fw->data, fw->size, &format_version,
2461 &action_count, &procedure_count);
2462 printk(KERN_INFO "%s: File format is %s ByteCode format\n",
2463 __func__, (format_version == 2) ? "Jam STAPL" :
2464 "pre-standardized Jam 1.1");
2465 while (altera_get_note((u8 *)fw->data, fw->size,
2466 &offset, key, value, 256) == 0)
2467 printk(KERN_INFO "%s: NOTE \"%s\" = \"%s\"\n",
2468 __func__, key, value);
2469 }
2470
2471 if (debug && (format_version == 2) && (action_count > 0)) {
2472 printk(KERN_INFO "%s: Actions available:\n", __func__);
2473 for (index = 0; index < action_count; ++index) {
2474 altera_get_act_info((u8 *)fw->data, fw->size,
2475 index, &action_name,
2476 &description,
2477 &proc_list);
2478
2479 if (description == NULL)
2480 printk(KERN_INFO "%s: %s\n",
2481 __func__,
2482 action_name);
2483 else
2484 printk(KERN_INFO "%s: %s \"%s\"\n",
2485 __func__,
2486 action_name,
2487 description);
2488
2489 procptr = proc_list;
2490 while (procptr != NULL) {
2491 if (procptr->attrs != 0)
2492 printk(KERN_INFO "%s: %s (%s)\n",
2493 __func__,
2494 procptr->name,
2495 (procptr->attrs == 1) ?
2496 "optional" : "recommended");
2497
2498 proc_list = procptr->next;
2499 kfree(procptr);
2500 procptr = proc_list;
2501 }
2502 }
2503
2504 printk(KERN_INFO "\n");
2505 }
2506
2507 exec_result = altera_execute(astate, (u8 *)fw->data, fw->size,
2508 &error_address, &exit_code, &format_version);
2509
2510 if (exit_code)
2511 exec_result = -EREMOTEIO;
2512
2513 if ((format_version == 2) && (exec_result == -EINVAL)) {
2514 if (astate->config->action == NULL)
2515 printk(KERN_ERR "%s: error: no action specified for "
2516 "Jam STAPL file.\nprogram terminated.\n",
2517 __func__);
2518 else
2519 printk(KERN_ERR "%s: error: action \"%s\""
2520 " is not supported "
2521 "for this Jam STAPL file.\n"
2522 "Program terminated.\n", __func__,
2523 astate->config->action);
2524
2525 } else if (exec_result)
2526 printk(KERN_ERR "%s: error %d\n", __func__, exec_result);
2527
2528 kfree(astate);
2529 free_value:
2530 kfree(value);
2531 free_key:
2532 kfree(key);
2533 out:
2534 return retval;
2535 }
2536 EXPORT_SYMBOL(altera_init);