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staging:ti dspbridge: remove DSP_SUCCEEDED macro from pmgr
[mirror_ubuntu-zesty-kernel.git] / drivers / staging / tidspbridge / rmgr / dbdcd.c
1 /*
2 * dbdcd.c
3 *
4 * DSP-BIOS Bridge driver support functions for TI OMAP processors.
5 *
6 * This file contains the implementation of the DSP/BIOS Bridge
7 * Configuration Database (DCD).
8 *
9 * Notes:
10 * The fxn dcd_get_objects can apply a callback fxn to each DCD object
11 * that is located in a specified COFF file. At the moment,
12 * dcd_auto_register, dcd_auto_unregister, and NLDR module all use
13 * dcd_get_objects.
14 *
15 * Copyright (C) 2005-2006 Texas Instruments, Inc.
16 *
17 * This package is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License version 2 as
19 * published by the Free Software Foundation.
20 *
21 * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
23 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
24 */
25 #include <linux/types.h>
26
27 /* ----------------------------------- Host OS */
28 #include <dspbridge/host_os.h>
29
30 /* ----------------------------------- DSP/BIOS Bridge */
31 #include <dspbridge/dbdefs.h>
32 /* ----------------------------------- Trace & Debug */
33 #include <dspbridge/dbc.h>
34
35 /* ----------------------------------- Platform Manager */
36 #include <dspbridge/cod.h>
37
38 /* ----------------------------------- Others */
39 #include <dspbridge/uuidutil.h>
40
41 /* ----------------------------------- This */
42 #include <dspbridge/dbdcd.h>
43
44 /* ----------------------------------- Global defines. */
45 #define MAX_INT2CHAR_LENGTH 16 /* Max int2char len of 32 bit int */
46
47 /* Name of section containing dependent libraries */
48 #define DEPLIBSECT ".dspbridge_deplibs"
49
50 /* DCD specific structures. */
51 struct dcd_manager {
52 struct cod_manager *cod_mgr; /* Handle to COD manager object. */
53 };
54
55 /* Pointer to the registry support key */
56 static struct list_head reg_key_list;
57 static DEFINE_SPINLOCK(dbdcd_lock);
58
59 /* Global reference variables. */
60 static u32 refs;
61 static u32 enum_refs;
62
63 /* Helper function prototypes. */
64 static s32 atoi(char *psz_buf);
65 static int get_attrs_from_buf(char *psz_buf, u32 ul_buf_size,
66 enum dsp_dcdobjtype obj_type,
67 struct dcd_genericobj *gen_obj);
68 static void compress_buf(char *psz_buf, u32 ul_buf_size, s32 char_size);
69 static char dsp_char2_gpp_char(char *word, s32 dsp_char_size);
70 static int get_dep_lib_info(struct dcd_manager *hdcd_mgr,
71 struct dsp_uuid *uuid_obj,
72 u16 *num_libs,
73 u16 *num_pers_libs,
74 struct dsp_uuid *dep_lib_uuids,
75 bool *prstnt_dep_libs,
76 enum nldr_phase phase);
77
78 /*
79 * ======== dcd_auto_register ========
80 * Purpose:
81 * Parses the supplied image and resigsters with DCD.
82 */
83 int dcd_auto_register(struct dcd_manager *hdcd_mgr,
84 char *sz_coff_path)
85 {
86 int status = 0;
87
88 DBC_REQUIRE(refs > 0);
89
90 if (hdcd_mgr)
91 status = dcd_get_objects(hdcd_mgr, sz_coff_path,
92 (dcd_registerfxn) dcd_register_object,
93 (void *)sz_coff_path);
94 else
95 status = -EFAULT;
96
97 return status;
98 }
99
100 /*
101 * ======== dcd_auto_unregister ========
102 * Purpose:
103 * Parses the supplied DSP image and unresiters from DCD.
104 */
105 int dcd_auto_unregister(struct dcd_manager *hdcd_mgr,
106 char *sz_coff_path)
107 {
108 int status = 0;
109
110 DBC_REQUIRE(refs > 0);
111
112 if (hdcd_mgr)
113 status = dcd_get_objects(hdcd_mgr, sz_coff_path,
114 (dcd_registerfxn) dcd_register_object,
115 NULL);
116 else
117 status = -EFAULT;
118
119 return status;
120 }
121
122 /*
123 * ======== dcd_create_manager ========
124 * Purpose:
125 * Creates DCD manager.
126 */
127 int dcd_create_manager(char *sz_zl_dll_name,
128 struct dcd_manager **dcd_mgr)
129 {
130 struct cod_manager *cod_mgr; /* COD manager handle */
131 struct dcd_manager *dcd_mgr_obj = NULL; /* DCD Manager pointer */
132 int status = 0;
133
134 DBC_REQUIRE(refs >= 0);
135 DBC_REQUIRE(dcd_mgr);
136
137 status = cod_create(&cod_mgr, sz_zl_dll_name, NULL);
138 if (DSP_FAILED(status))
139 goto func_end;
140
141 /* Create a DCD object. */
142 dcd_mgr_obj = kzalloc(sizeof(struct dcd_manager), GFP_KERNEL);
143 if (dcd_mgr_obj != NULL) {
144 /* Fill out the object. */
145 dcd_mgr_obj->cod_mgr = cod_mgr;
146
147 /* Return handle to this DCD interface. */
148 *dcd_mgr = dcd_mgr_obj;
149 } else {
150 status = -ENOMEM;
151
152 /*
153 * If allocation of DcdManager object failed, delete the
154 * COD manager.
155 */
156 cod_delete(cod_mgr);
157 }
158
159 DBC_ENSURE((DSP_SUCCEEDED(status)) ||
160 ((dcd_mgr_obj == NULL) && (status == -ENOMEM)));
161
162 func_end:
163 return status;
164 }
165
166 /*
167 * ======== dcd_destroy_manager ========
168 * Purpose:
169 * Frees DCD Manager object.
170 */
171 int dcd_destroy_manager(struct dcd_manager *hdcd_mgr)
172 {
173 struct dcd_manager *dcd_mgr_obj = hdcd_mgr;
174 int status = -EFAULT;
175
176 DBC_REQUIRE(refs >= 0);
177
178 if (hdcd_mgr) {
179 /* Delete the COD manager. */
180 cod_delete(dcd_mgr_obj->cod_mgr);
181
182 /* Deallocate a DCD manager object. */
183 kfree(dcd_mgr_obj);
184
185 status = 0;
186 }
187
188 return status;
189 }
190
191 /*
192 * ======== dcd_enumerate_object ========
193 * Purpose:
194 * Enumerates objects in the DCD.
195 */
196 int dcd_enumerate_object(s32 index, enum dsp_dcdobjtype obj_type,
197 struct dsp_uuid *uuid_obj)
198 {
199 int status = 0;
200 char sz_reg_key[DCD_MAXPATHLENGTH];
201 char sz_value[DCD_MAXPATHLENGTH];
202 struct dsp_uuid dsp_uuid_obj;
203 char sz_obj_type[MAX_INT2CHAR_LENGTH]; /* str. rep. of obj_type. */
204 u32 dw_key_len = 0;
205 struct dcd_key_elem *dcd_key;
206 int len;
207
208 DBC_REQUIRE(refs >= 0);
209 DBC_REQUIRE(index >= 0);
210 DBC_REQUIRE(uuid_obj != NULL);
211
212 if ((index != 0) && (enum_refs == 0)) {
213 /*
214 * If an enumeration is being performed on an index greater
215 * than zero, then the current enum_refs must have been
216 * incremented to greater than zero.
217 */
218 status = -EIDRM;
219 } else {
220 /*
221 * Pre-determine final key length. It's length of DCD_REGKEY +
222 * "_\0" + length of sz_obj_type string + terminating NULL.
223 */
224 dw_key_len = strlen(DCD_REGKEY) + 1 + sizeof(sz_obj_type) + 1;
225 DBC_ASSERT(dw_key_len < DCD_MAXPATHLENGTH);
226
227 /* Create proper REG key; concatenate DCD_REGKEY with
228 * obj_type. */
229 strncpy(sz_reg_key, DCD_REGKEY, strlen(DCD_REGKEY) + 1);
230 if ((strlen(sz_reg_key) + strlen("_\0")) <
231 DCD_MAXPATHLENGTH) {
232 strncat(sz_reg_key, "_\0", 2);
233 } else {
234 status = -EPERM;
235 }
236
237 /* This snprintf is guaranteed not to exceed max size of an
238 * integer. */
239 status = snprintf(sz_obj_type, MAX_INT2CHAR_LENGTH, "%d",
240 obj_type);
241
242 if (status == -1) {
243 status = -EPERM;
244 } else {
245 status = 0;
246 if ((strlen(sz_reg_key) + strlen(sz_obj_type)) <
247 DCD_MAXPATHLENGTH) {
248 strncat(sz_reg_key, sz_obj_type,
249 strlen(sz_obj_type) + 1);
250 } else {
251 status = -EPERM;
252 }
253 }
254
255 if (DSP_SUCCEEDED(status)) {
256 len = strlen(sz_reg_key);
257 spin_lock(&dbdcd_lock);
258 list_for_each_entry(dcd_key, &reg_key_list, link) {
259 if (!strncmp(dcd_key->name, sz_reg_key, len)
260 && !index--) {
261 strncpy(sz_value, &dcd_key->name[len],
262 strlen(&dcd_key->name[len]) + 1);
263 break;
264 }
265 }
266 spin_unlock(&dbdcd_lock);
267
268 if (&dcd_key->link == &reg_key_list)
269 status = -ENODATA;
270 }
271
272 if (DSP_SUCCEEDED(status)) {
273 /* Create UUID value using string retrieved from
274 * registry. */
275 uuid_uuid_from_string(sz_value, &dsp_uuid_obj);
276
277 *uuid_obj = dsp_uuid_obj;
278
279 /* Increment enum_refs to update reference count. */
280 enum_refs++;
281
282 status = 0;
283 } else if (status == -ENODATA) {
284 /* At the end of enumeration. Reset enum_refs. */
285 enum_refs = 0;
286
287 /*
288 * TODO: Revisit, this is not an errror case but code
289 * expects non-zero value.
290 */
291 status = ENODATA;
292 } else {
293 status = -EPERM;
294 }
295 }
296
297 DBC_ENSURE(uuid_obj || (status == -EPERM));
298
299 return status;
300 }
301
302 /*
303 * ======== dcd_exit ========
304 * Purpose:
305 * Discontinue usage of the DCD module.
306 */
307 void dcd_exit(void)
308 {
309 struct dcd_key_elem *rv, *rv_tmp;
310 DBC_REQUIRE(refs > 0);
311
312 refs--;
313 if (refs == 0) {
314 cod_exit();
315 list_for_each_entry_safe(rv, rv_tmp, &reg_key_list, link) {
316 list_del(&rv->link);
317 kfree(rv->path);
318 kfree(rv);
319 }
320 }
321
322 DBC_ENSURE(refs >= 0);
323 }
324
325 /*
326 * ======== dcd_get_dep_libs ========
327 */
328 int dcd_get_dep_libs(struct dcd_manager *hdcd_mgr,
329 struct dsp_uuid *uuid_obj,
330 u16 num_libs, struct dsp_uuid *dep_lib_uuids,
331 bool *prstnt_dep_libs,
332 enum nldr_phase phase)
333 {
334 int status = 0;
335
336 DBC_REQUIRE(refs > 0);
337 DBC_REQUIRE(hdcd_mgr);
338 DBC_REQUIRE(uuid_obj != NULL);
339 DBC_REQUIRE(dep_lib_uuids != NULL);
340 DBC_REQUIRE(prstnt_dep_libs != NULL);
341
342 status =
343 get_dep_lib_info(hdcd_mgr, uuid_obj, &num_libs, NULL, dep_lib_uuids,
344 prstnt_dep_libs, phase);
345
346 return status;
347 }
348
349 /*
350 * ======== dcd_get_num_dep_libs ========
351 */
352 int dcd_get_num_dep_libs(struct dcd_manager *hdcd_mgr,
353 struct dsp_uuid *uuid_obj,
354 u16 *num_libs, u16 *num_pers_libs,
355 enum nldr_phase phase)
356 {
357 int status = 0;
358
359 DBC_REQUIRE(refs > 0);
360 DBC_REQUIRE(hdcd_mgr);
361 DBC_REQUIRE(num_libs != NULL);
362 DBC_REQUIRE(num_pers_libs != NULL);
363 DBC_REQUIRE(uuid_obj != NULL);
364
365 status = get_dep_lib_info(hdcd_mgr, uuid_obj, num_libs, num_pers_libs,
366 NULL, NULL, phase);
367
368 return status;
369 }
370
371 /*
372 * ======== dcd_get_object_def ========
373 * Purpose:
374 * Retrieves the properties of a node or processor based on the UUID and
375 * object type.
376 */
377 int dcd_get_object_def(struct dcd_manager *hdcd_mgr,
378 struct dsp_uuid *obj_uuid,
379 enum dsp_dcdobjtype obj_type,
380 struct dcd_genericobj *obj_def)
381 {
382 struct dcd_manager *dcd_mgr_obj = hdcd_mgr; /* ptr to DCD mgr */
383 struct cod_libraryobj *lib = NULL;
384 int status = 0;
385 u32 ul_addr = 0; /* Used by cod_get_section */
386 u32 ul_len = 0; /* Used by cod_get_section */
387 u32 dw_buf_size; /* Used by REG functions */
388 char sz_reg_key[DCD_MAXPATHLENGTH];
389 char *sz_uuid; /*[MAXUUIDLEN]; */
390 struct dcd_key_elem *dcd_key = NULL;
391 char sz_sect_name[MAXUUIDLEN + 2]; /* ".[UUID]\0" */
392 char *psz_coff_buf;
393 u32 dw_key_len; /* Len of REG key. */
394 char sz_obj_type[MAX_INT2CHAR_LENGTH]; /* str. rep. of obj_type. */
395
396 DBC_REQUIRE(refs > 0);
397 DBC_REQUIRE(obj_def != NULL);
398 DBC_REQUIRE(obj_uuid != NULL);
399
400 sz_uuid = kzalloc(MAXUUIDLEN, GFP_KERNEL);
401 if (!sz_uuid) {
402 status = -ENOMEM;
403 goto func_end;
404 }
405
406 if (!hdcd_mgr) {
407 status = -EFAULT;
408 goto func_end;
409 }
410
411 /* Pre-determine final key length. It's length of DCD_REGKEY +
412 * "_\0" + length of sz_obj_type string + terminating NULL */
413 dw_key_len = strlen(DCD_REGKEY) + 1 + sizeof(sz_obj_type) + 1;
414 DBC_ASSERT(dw_key_len < DCD_MAXPATHLENGTH);
415
416 /* Create proper REG key; concatenate DCD_REGKEY with obj_type. */
417 strncpy(sz_reg_key, DCD_REGKEY, strlen(DCD_REGKEY) + 1);
418
419 if ((strlen(sz_reg_key) + strlen("_\0")) < DCD_MAXPATHLENGTH)
420 strncat(sz_reg_key, "_\0", 2);
421 else
422 status = -EPERM;
423
424 status = snprintf(sz_obj_type, MAX_INT2CHAR_LENGTH, "%d", obj_type);
425 if (status == -1) {
426 status = -EPERM;
427 } else {
428 status = 0;
429
430 if ((strlen(sz_reg_key) + strlen(sz_obj_type)) <
431 DCD_MAXPATHLENGTH) {
432 strncat(sz_reg_key, sz_obj_type,
433 strlen(sz_obj_type) + 1);
434 } else {
435 status = -EPERM;
436 }
437
438 /* Create UUID value to set in registry. */
439 uuid_uuid_to_string(obj_uuid, sz_uuid, MAXUUIDLEN);
440
441 if ((strlen(sz_reg_key) + MAXUUIDLEN) < DCD_MAXPATHLENGTH)
442 strncat(sz_reg_key, sz_uuid, MAXUUIDLEN);
443 else
444 status = -EPERM;
445
446 /* Retrieve paths from the registry based on struct dsp_uuid */
447 dw_buf_size = DCD_MAXPATHLENGTH;
448 }
449 if (DSP_SUCCEEDED(status)) {
450 spin_lock(&dbdcd_lock);
451 list_for_each_entry(dcd_key, &reg_key_list, link) {
452 if (!strncmp(dcd_key->name, sz_reg_key,
453 strlen(sz_reg_key) + 1))
454 break;
455 }
456 spin_unlock(&dbdcd_lock);
457 if (&dcd_key->link == &reg_key_list) {
458 status = -ENOKEY;
459 goto func_end;
460 }
461 }
462
463
464 /* Open COFF file. */
465 status = cod_open(dcd_mgr_obj->cod_mgr, dcd_key->path,
466 COD_NOLOAD, &lib);
467 if (DSP_FAILED(status)) {
468 status = -EACCES;
469 goto func_end;
470 }
471
472 /* Ensure sz_uuid + 1 is not greater than sizeof sz_sect_name. */
473 DBC_ASSERT((strlen(sz_uuid) + 1) < sizeof(sz_sect_name));
474
475 /* Create section name based on node UUID. A period is
476 * pre-pended to the UUID string to form the section name.
477 * I.e. ".24BC8D90_BB45_11d4_B756_006008BDB66F" */
478 strncpy(sz_sect_name, ".", 2);
479 strncat(sz_sect_name, sz_uuid, strlen(sz_uuid));
480
481 /* Get section information. */
482 status = cod_get_section(lib, sz_sect_name, &ul_addr, &ul_len);
483 if (DSP_FAILED(status)) {
484 status = -EACCES;
485 goto func_end;
486 }
487
488 /* Allocate zeroed buffer. */
489 psz_coff_buf = kzalloc(ul_len + 4, GFP_KERNEL);
490 #ifdef _DB_TIOMAP
491 if (strstr(dcd_key->path, "iva") == NULL) {
492 /* Locate section by objectID and read its content. */
493 status =
494 cod_read_section(lib, sz_sect_name, psz_coff_buf, ul_len);
495 } else {
496 status =
497 cod_read_section(lib, sz_sect_name, psz_coff_buf, ul_len);
498 dev_dbg(bridge, "%s: Skipped Byte swap for IVA!!\n", __func__);
499 }
500 #else
501 status = cod_read_section(lib, sz_sect_name, psz_coff_buf, ul_len);
502 #endif
503 if (DSP_SUCCEEDED(status)) {
504 /* Compres DSP buffer to conform to PC format. */
505 if (strstr(dcd_key->path, "iva") == NULL) {
506 compress_buf(psz_coff_buf, ul_len, DSPWORDSIZE);
507 } else {
508 compress_buf(psz_coff_buf, ul_len, 1);
509 dev_dbg(bridge, "%s: Compressing IVA COFF buffer by 1 "
510 "for IVA!!\n", __func__);
511 }
512
513 /* Parse the content of the COFF buffer. */
514 status =
515 get_attrs_from_buf(psz_coff_buf, ul_len, obj_type, obj_def);
516 if (DSP_FAILED(status))
517 status = -EACCES;
518 } else {
519 status = -EACCES;
520 }
521
522 /* Free the previously allocated dynamic buffer. */
523 kfree(psz_coff_buf);
524 func_end:
525 if (lib)
526 cod_close(lib);
527
528 kfree(sz_uuid);
529
530 return status;
531 }
532
533 /*
534 * ======== dcd_get_objects ========
535 */
536 int dcd_get_objects(struct dcd_manager *hdcd_mgr,
537 char *sz_coff_path, dcd_registerfxn register_fxn,
538 void *handle)
539 {
540 struct dcd_manager *dcd_mgr_obj = hdcd_mgr;
541 int status = 0;
542 char *psz_coff_buf;
543 char *psz_cur;
544 struct cod_libraryobj *lib = NULL;
545 u32 ul_addr = 0; /* Used by cod_get_section */
546 u32 ul_len = 0; /* Used by cod_get_section */
547 char seps[] = ":, ";
548 char *token = NULL;
549 struct dsp_uuid dsp_uuid_obj;
550 s32 object_type;
551
552 DBC_REQUIRE(refs > 0);
553 if (!hdcd_mgr) {
554 status = -EFAULT;
555 goto func_end;
556 }
557
558 /* Open DSP coff file, don't load symbols. */
559 status = cod_open(dcd_mgr_obj->cod_mgr, sz_coff_path, COD_NOLOAD, &lib);
560 if (DSP_FAILED(status)) {
561 status = -EACCES;
562 goto func_cont;
563 }
564
565 /* Get DCD_RESIGER_SECTION section information. */
566 status = cod_get_section(lib, DCD_REGISTER_SECTION, &ul_addr, &ul_len);
567 if (DSP_FAILED(status) || !(ul_len > 0)) {
568 status = -EACCES;
569 goto func_cont;
570 }
571
572 /* Allocate zeroed buffer. */
573 psz_coff_buf = kzalloc(ul_len + 4, GFP_KERNEL);
574 #ifdef _DB_TIOMAP
575 if (strstr(sz_coff_path, "iva") == NULL) {
576 /* Locate section by objectID and read its content. */
577 status = cod_read_section(lib, DCD_REGISTER_SECTION,
578 psz_coff_buf, ul_len);
579 } else {
580 dev_dbg(bridge, "%s: Skipped Byte swap for IVA!!\n", __func__);
581 status = cod_read_section(lib, DCD_REGISTER_SECTION,
582 psz_coff_buf, ul_len);
583 }
584 #else
585 status =
586 cod_read_section(lib, DCD_REGISTER_SECTION, psz_coff_buf, ul_len);
587 #endif
588 if (DSP_SUCCEEDED(status)) {
589 /* Compress DSP buffer to conform to PC format. */
590 if (strstr(sz_coff_path, "iva") == NULL) {
591 compress_buf(psz_coff_buf, ul_len, DSPWORDSIZE);
592 } else {
593 compress_buf(psz_coff_buf, ul_len, 1);
594 dev_dbg(bridge, "%s: Compress COFF buffer with 1 word "
595 "for IVA!!\n", __func__);
596 }
597
598 /* Read from buffer and register object in buffer. */
599 psz_cur = psz_coff_buf;
600 while ((token = strsep(&psz_cur, seps)) && *token != '\0') {
601 /* Retrieve UUID string. */
602 uuid_uuid_from_string(token, &dsp_uuid_obj);
603
604 /* Retrieve object type */
605 token = strsep(&psz_cur, seps);
606
607 /* Retrieve object type */
608 object_type = atoi(token);
609
610 /*
611 * Apply register_fxn to the found DCD object.
612 * Possible actions include:
613 *
614 * 1) Register found DCD object.
615 * 2) Unregister found DCD object (when handle == NULL)
616 * 3) Add overlay node.
617 */
618 status =
619 register_fxn(&dsp_uuid_obj, object_type, handle);
620 if (DSP_FAILED(status)) {
621 /* if error occurs, break from while loop. */
622 break;
623 }
624 }
625 } else {
626 status = -EACCES;
627 }
628
629 /* Free the previously allocated dynamic buffer. */
630 kfree(psz_coff_buf);
631 func_cont:
632 if (lib)
633 cod_close(lib);
634
635 func_end:
636 return status;
637 }
638
639 /*
640 * ======== dcd_get_library_name ========
641 * Purpose:
642 * Retrieves the library name for the given UUID.
643 *
644 */
645 int dcd_get_library_name(struct dcd_manager *hdcd_mgr,
646 struct dsp_uuid *uuid_obj,
647 char *str_lib_name,
648 u32 *buff_size,
649 enum nldr_phase phase, bool *phase_split)
650 {
651 char sz_reg_key[DCD_MAXPATHLENGTH];
652 char sz_uuid[MAXUUIDLEN];
653 u32 dw_key_len; /* Len of REG key. */
654 char sz_obj_type[MAX_INT2CHAR_LENGTH]; /* str. rep. of obj_type. */
655 int status = 0;
656 struct dcd_key_elem *dcd_key = NULL;
657
658 DBC_REQUIRE(uuid_obj != NULL);
659 DBC_REQUIRE(str_lib_name != NULL);
660 DBC_REQUIRE(buff_size != NULL);
661 DBC_REQUIRE(hdcd_mgr);
662
663 dev_dbg(bridge, "%s: hdcd_mgr %p, uuid_obj %p, str_lib_name %p,"
664 " buff_size %p\n", __func__, hdcd_mgr, uuid_obj, str_lib_name,
665 buff_size);
666
667 /*
668 * Pre-determine final key length. It's length of DCD_REGKEY +
669 * "_\0" + length of sz_obj_type string + terminating NULL.
670 */
671 dw_key_len = strlen(DCD_REGKEY) + 1 + sizeof(sz_obj_type) + 1;
672 DBC_ASSERT(dw_key_len < DCD_MAXPATHLENGTH);
673
674 /* Create proper REG key; concatenate DCD_REGKEY with obj_type. */
675 strncpy(sz_reg_key, DCD_REGKEY, strlen(DCD_REGKEY) + 1);
676 if ((strlen(sz_reg_key) + strlen("_\0")) < DCD_MAXPATHLENGTH)
677 strncat(sz_reg_key, "_\0", 2);
678 else
679 status = -EPERM;
680
681 switch (phase) {
682 case NLDR_CREATE:
683 /* create phase type */
684 sprintf(sz_obj_type, "%d", DSP_DCDCREATELIBTYPE);
685 break;
686 case NLDR_EXECUTE:
687 /* execute phase type */
688 sprintf(sz_obj_type, "%d", DSP_DCDEXECUTELIBTYPE);
689 break;
690 case NLDR_DELETE:
691 /* delete phase type */
692 sprintf(sz_obj_type, "%d", DSP_DCDDELETELIBTYPE);
693 break;
694 case NLDR_NOPHASE:
695 /* known to be a dependent library */
696 sprintf(sz_obj_type, "%d", DSP_DCDLIBRARYTYPE);
697 break;
698 default:
699 status = -EINVAL;
700 DBC_ASSERT(false);
701 }
702 if (DSP_SUCCEEDED(status)) {
703 if ((strlen(sz_reg_key) + strlen(sz_obj_type)) <
704 DCD_MAXPATHLENGTH) {
705 strncat(sz_reg_key, sz_obj_type,
706 strlen(sz_obj_type) + 1);
707 } else {
708 status = -EPERM;
709 }
710 /* Create UUID value to find match in registry. */
711 uuid_uuid_to_string(uuid_obj, sz_uuid, MAXUUIDLEN);
712 if ((strlen(sz_reg_key) + MAXUUIDLEN) < DCD_MAXPATHLENGTH)
713 strncat(sz_reg_key, sz_uuid, MAXUUIDLEN);
714 else
715 status = -EPERM;
716 }
717 if (DSP_SUCCEEDED(status)) {
718 spin_lock(&dbdcd_lock);
719 list_for_each_entry(dcd_key, &reg_key_list, link) {
720 /* See if the name matches. */
721 if (!strncmp(dcd_key->name, sz_reg_key,
722 strlen(sz_reg_key) + 1))
723 break;
724 }
725 spin_unlock(&dbdcd_lock);
726 }
727
728 if (&dcd_key->link == &reg_key_list)
729 status = -ENOKEY;
730
731 /* If can't find, phases might be registered as generic LIBRARYTYPE */
732 if (DSP_FAILED(status) && phase != NLDR_NOPHASE) {
733 if (phase_split)
734 *phase_split = false;
735
736 strncpy(sz_reg_key, DCD_REGKEY, strlen(DCD_REGKEY) + 1);
737 if ((strlen(sz_reg_key) + strlen("_\0")) <
738 DCD_MAXPATHLENGTH) {
739 strncat(sz_reg_key, "_\0", 2);
740 } else {
741 status = -EPERM;
742 }
743 sprintf(sz_obj_type, "%d", DSP_DCDLIBRARYTYPE);
744 if ((strlen(sz_reg_key) + strlen(sz_obj_type))
745 < DCD_MAXPATHLENGTH) {
746 strncat(sz_reg_key, sz_obj_type,
747 strlen(sz_obj_type) + 1);
748 } else {
749 status = -EPERM;
750 }
751 uuid_uuid_to_string(uuid_obj, sz_uuid, MAXUUIDLEN);
752 if ((strlen(sz_reg_key) + MAXUUIDLEN) < DCD_MAXPATHLENGTH)
753 strncat(sz_reg_key, sz_uuid, MAXUUIDLEN);
754 else
755 status = -EPERM;
756
757 spin_lock(&dbdcd_lock);
758 list_for_each_entry(dcd_key, &reg_key_list, link) {
759 /* See if the name matches. */
760 if (!strncmp(dcd_key->name, sz_reg_key,
761 strlen(sz_reg_key) + 1))
762 break;
763 }
764 spin_unlock(&dbdcd_lock);
765
766 status = (&dcd_key->link != &reg_key_list) ?
767 0 : -ENOKEY;
768 }
769
770 if (DSP_SUCCEEDED(status))
771 memcpy(str_lib_name, dcd_key->path, strlen(dcd_key->path) + 1);
772 return status;
773 }
774
775 /*
776 * ======== dcd_init ========
777 * Purpose:
778 * Initialize the DCD module.
779 */
780 bool dcd_init(void)
781 {
782 bool init_cod;
783 bool ret = true;
784
785 DBC_REQUIRE(refs >= 0);
786
787 if (refs == 0) {
788 /* Initialize required modules. */
789 init_cod = cod_init();
790
791 if (!init_cod) {
792 ret = false;
793 /* Exit initialized modules. */
794 if (init_cod)
795 cod_exit();
796 }
797
798 INIT_LIST_HEAD(&reg_key_list);
799 }
800
801 if (ret)
802 refs++;
803
804 DBC_ENSURE((ret && (refs > 0)) || (!ret && (refs == 0)));
805
806 return ret;
807 }
808
809 /*
810 * ======== dcd_register_object ========
811 * Purpose:
812 * Registers a node or a processor with the DCD.
813 * If psz_path_name == NULL, unregister the specified DCD object.
814 */
815 int dcd_register_object(struct dsp_uuid *uuid_obj,
816 enum dsp_dcdobjtype obj_type,
817 char *psz_path_name)
818 {
819 int status = 0;
820 char sz_reg_key[DCD_MAXPATHLENGTH];
821 char sz_uuid[MAXUUIDLEN + 1];
822 u32 dw_path_size = 0;
823 u32 dw_key_len; /* Len of REG key. */
824 char sz_obj_type[MAX_INT2CHAR_LENGTH]; /* str. rep. of obj_type. */
825 struct dcd_key_elem *dcd_key = NULL;
826
827 DBC_REQUIRE(refs > 0);
828 DBC_REQUIRE(uuid_obj != NULL);
829 DBC_REQUIRE((obj_type == DSP_DCDNODETYPE) ||
830 (obj_type == DSP_DCDPROCESSORTYPE) ||
831 (obj_type == DSP_DCDLIBRARYTYPE) ||
832 (obj_type == DSP_DCDCREATELIBTYPE) ||
833 (obj_type == DSP_DCDEXECUTELIBTYPE) ||
834 (obj_type == DSP_DCDDELETELIBTYPE));
835
836 dev_dbg(bridge, "%s: object UUID %p, obj_type %d, szPathName %s\n",
837 __func__, uuid_obj, obj_type, psz_path_name);
838
839 /*
840 * Pre-determine final key length. It's length of DCD_REGKEY +
841 * "_\0" + length of sz_obj_type string + terminating NULL.
842 */
843 dw_key_len = strlen(DCD_REGKEY) + 1 + sizeof(sz_obj_type) + 1;
844 DBC_ASSERT(dw_key_len < DCD_MAXPATHLENGTH);
845
846 /* Create proper REG key; concatenate DCD_REGKEY with obj_type. */
847 strncpy(sz_reg_key, DCD_REGKEY, strlen(DCD_REGKEY) + 1);
848 if ((strlen(sz_reg_key) + strlen("_\0")) < DCD_MAXPATHLENGTH)
849 strncat(sz_reg_key, "_\0", 2);
850 else {
851 status = -EPERM;
852 goto func_end;
853 }
854
855 status = snprintf(sz_obj_type, MAX_INT2CHAR_LENGTH, "%d", obj_type);
856 if (status == -1) {
857 status = -EPERM;
858 } else {
859 status = 0;
860 if ((strlen(sz_reg_key) + strlen(sz_obj_type)) <
861 DCD_MAXPATHLENGTH) {
862 strncat(sz_reg_key, sz_obj_type,
863 strlen(sz_obj_type) + 1);
864 } else
865 status = -EPERM;
866
867 /* Create UUID value to set in registry. */
868 uuid_uuid_to_string(uuid_obj, sz_uuid, MAXUUIDLEN);
869 if ((strlen(sz_reg_key) + MAXUUIDLEN) < DCD_MAXPATHLENGTH)
870 strncat(sz_reg_key, sz_uuid, MAXUUIDLEN);
871 else
872 status = -EPERM;
873 }
874
875 if (DSP_FAILED(status))
876 goto func_end;
877
878 /*
879 * If psz_path_name != NULL, perform registration, otherwise,
880 * perform unregistration.
881 */
882
883 if (psz_path_name) {
884 dw_path_size = strlen(psz_path_name) + 1;
885 spin_lock(&dbdcd_lock);
886 list_for_each_entry(dcd_key, &reg_key_list, link) {
887 /* See if the name matches. */
888 if (!strncmp(dcd_key->name, sz_reg_key,
889 strlen(sz_reg_key) + 1))
890 break;
891 }
892 spin_unlock(&dbdcd_lock);
893 if (&dcd_key->link == &reg_key_list) {
894 /*
895 * Add new reg value (UUID+obj_type)
896 * with COFF path info
897 */
898
899 dcd_key = kmalloc(sizeof(struct dcd_key_elem),
900 GFP_KERNEL);
901 if (!dcd_key) {
902 status = -ENOMEM;
903 goto func_end;
904 }
905
906 dcd_key->path = kmalloc(strlen(sz_reg_key) + 1,
907 GFP_KERNEL);
908
909 if (!dcd_key->path) {
910 kfree(dcd_key);
911 status = -ENOMEM;
912 goto func_end;
913 }
914
915 strncpy(dcd_key->name, sz_reg_key,
916 strlen(sz_reg_key) + 1);
917 strncpy(dcd_key->path, psz_path_name ,
918 dw_path_size);
919 spin_lock(&dbdcd_lock);
920 list_add_tail(&dcd_key->link, &reg_key_list);
921 spin_unlock(&dbdcd_lock);
922 } else {
923 /* Make sure the new data is the same. */
924 if (strncmp(dcd_key->path, psz_path_name,
925 dw_path_size)) {
926 /* The caller needs a different data size! */
927 kfree(dcd_key->path);
928 dcd_key->path = kmalloc(dw_path_size,
929 GFP_KERNEL);
930 if (dcd_key->path == NULL) {
931 status = -ENOMEM;
932 goto func_end;
933 }
934 }
935
936 /* We have a match! Copy out the data. */
937 memcpy(dcd_key->path, psz_path_name, dw_path_size);
938 }
939 dev_dbg(bridge, "%s: psz_path_name=%s, dw_path_size=%d\n",
940 __func__, psz_path_name, dw_path_size);
941 } else {
942 /* Deregister an existing object */
943 spin_lock(&dbdcd_lock);
944 list_for_each_entry(dcd_key, &reg_key_list, link) {
945 if (!strncmp(dcd_key->name, sz_reg_key,
946 strlen(sz_reg_key) + 1)) {
947 list_del(&dcd_key->link);
948 kfree(dcd_key->path);
949 kfree(dcd_key);
950 break;
951 }
952 }
953 spin_unlock(&dbdcd_lock);
954 if (&dcd_key->link == &reg_key_list)
955 status = -EPERM;
956 }
957
958 if (DSP_SUCCEEDED(status)) {
959 /*
960 * Because the node database has been updated through a
961 * successful object registration/de-registration operation,
962 * we need to reset the object enumeration counter to allow
963 * current enumerations to reflect this update in the node
964 * database.
965 */
966 enum_refs = 0;
967 }
968 func_end:
969 return status;
970 }
971
972 /*
973 * ======== dcd_unregister_object ========
974 * Call DCD_Register object with psz_path_name set to NULL to
975 * perform actual object de-registration.
976 */
977 int dcd_unregister_object(struct dsp_uuid *uuid_obj,
978 enum dsp_dcdobjtype obj_type)
979 {
980 int status = 0;
981
982 DBC_REQUIRE(refs > 0);
983 DBC_REQUIRE(uuid_obj != NULL);
984 DBC_REQUIRE((obj_type == DSP_DCDNODETYPE) ||
985 (obj_type == DSP_DCDPROCESSORTYPE) ||
986 (obj_type == DSP_DCDLIBRARYTYPE) ||
987 (obj_type == DSP_DCDCREATELIBTYPE) ||
988 (obj_type == DSP_DCDEXECUTELIBTYPE) ||
989 (obj_type == DSP_DCDDELETELIBTYPE));
990
991 /*
992 * When dcd_register_object is called with NULL as pathname,
993 * it indicates an unregister object operation.
994 */
995 status = dcd_register_object(uuid_obj, obj_type, NULL);
996
997 return status;
998 }
999
1000 /*
1001 **********************************************************************
1002 * DCD Helper Functions
1003 **********************************************************************
1004 */
1005
1006 /*
1007 * ======== atoi ========
1008 * Purpose:
1009 * This function converts strings in decimal or hex format to integers.
1010 */
1011 static s32 atoi(char *psz_buf)
1012 {
1013 char *pch = psz_buf;
1014 s32 base = 0;
1015 unsigned long res;
1016 int ret_val;
1017
1018 while (isspace(*pch))
1019 pch++;
1020
1021 if (*pch == '-' || *pch == '+') {
1022 base = 10;
1023 pch++;
1024 } else if (*pch && tolower(pch[strlen(pch) - 1]) == 'h') {
1025 base = 16;
1026 }
1027
1028 ret_val = strict_strtoul(pch, base, &res);
1029
1030 return ret_val ? : res;
1031 }
1032
1033 /*
1034 * ======== get_attrs_from_buf ========
1035 * Purpose:
1036 * Parse the content of a buffer filled with DSP-side data and
1037 * retrieve an object's attributes from it. IMPORTANT: Assume the
1038 * buffer has been converted from DSP format to GPP format.
1039 */
1040 static int get_attrs_from_buf(char *psz_buf, u32 ul_buf_size,
1041 enum dsp_dcdobjtype obj_type,
1042 struct dcd_genericobj *gen_obj)
1043 {
1044 int status = 0;
1045 char seps[] = ", ";
1046 char *psz_cur;
1047 char *token;
1048 s32 token_len = 0;
1049 u32 i = 0;
1050 #ifdef _DB_TIOMAP
1051 s32 entry_id;
1052 #endif
1053
1054 DBC_REQUIRE(psz_buf != NULL);
1055 DBC_REQUIRE(ul_buf_size != 0);
1056 DBC_REQUIRE((obj_type == DSP_DCDNODETYPE)
1057 || (obj_type == DSP_DCDPROCESSORTYPE));
1058 DBC_REQUIRE(gen_obj != NULL);
1059
1060 switch (obj_type) {
1061 case DSP_DCDNODETYPE:
1062 /*
1063 * Parse COFF sect buffer to retrieve individual tokens used
1064 * to fill in object attrs.
1065 */
1066 psz_cur = psz_buf;
1067 token = strsep(&psz_cur, seps);
1068
1069 /* u32 cb_struct */
1070 gen_obj->obj_data.node_obj.ndb_props.cb_struct =
1071 (u32) atoi(token);
1072 token = strsep(&psz_cur, seps);
1073
1074 /* dsp_uuid ui_node_id */
1075 uuid_uuid_from_string(token,
1076 &gen_obj->obj_data.node_obj.ndb_props.
1077 ui_node_id);
1078 token = strsep(&psz_cur, seps);
1079
1080 /* ac_name */
1081 DBC_REQUIRE(token);
1082 token_len = strlen(token);
1083 if (token_len > DSP_MAXNAMELEN - 1)
1084 token_len = DSP_MAXNAMELEN - 1;
1085
1086 strncpy(gen_obj->obj_data.node_obj.ndb_props.ac_name,
1087 token, token_len);
1088 gen_obj->obj_data.node_obj.ndb_props.ac_name[token_len] = '\0';
1089 token = strsep(&psz_cur, seps);
1090 /* u32 ntype */
1091 gen_obj->obj_data.node_obj.ndb_props.ntype = atoi(token);
1092 token = strsep(&psz_cur, seps);
1093 /* u32 cache_on_gpp */
1094 gen_obj->obj_data.node_obj.ndb_props.cache_on_gpp = atoi(token);
1095 token = strsep(&psz_cur, seps);
1096 /* dsp_resourcereqmts dsp_resource_reqmts */
1097 gen_obj->obj_data.node_obj.ndb_props.dsp_resource_reqmts.
1098 cb_struct = (u32) atoi(token);
1099 token = strsep(&psz_cur, seps);
1100
1101 gen_obj->obj_data.node_obj.ndb_props.
1102 dsp_resource_reqmts.static_data_size = atoi(token);
1103 token = strsep(&psz_cur, seps);
1104 gen_obj->obj_data.node_obj.ndb_props.
1105 dsp_resource_reqmts.global_data_size = atoi(token);
1106 token = strsep(&psz_cur, seps);
1107 gen_obj->obj_data.node_obj.ndb_props.
1108 dsp_resource_reqmts.program_mem_size = atoi(token);
1109 token = strsep(&psz_cur, seps);
1110 gen_obj->obj_data.node_obj.ndb_props.
1111 dsp_resource_reqmts.uwc_execution_time = atoi(token);
1112 token = strsep(&psz_cur, seps);
1113 gen_obj->obj_data.node_obj.ndb_props.
1114 dsp_resource_reqmts.uwc_period = atoi(token);
1115 token = strsep(&psz_cur, seps);
1116
1117 gen_obj->obj_data.node_obj.ndb_props.
1118 dsp_resource_reqmts.uwc_deadline = atoi(token);
1119 token = strsep(&psz_cur, seps);
1120
1121 gen_obj->obj_data.node_obj.ndb_props.
1122 dsp_resource_reqmts.avg_exection_time = atoi(token);
1123 token = strsep(&psz_cur, seps);
1124
1125 gen_obj->obj_data.node_obj.ndb_props.
1126 dsp_resource_reqmts.minimum_period = atoi(token);
1127 token = strsep(&psz_cur, seps);
1128
1129 /* s32 prio */
1130 gen_obj->obj_data.node_obj.ndb_props.prio = atoi(token);
1131 token = strsep(&psz_cur, seps);
1132
1133 /* u32 stack_size */
1134 gen_obj->obj_data.node_obj.ndb_props.stack_size = atoi(token);
1135 token = strsep(&psz_cur, seps);
1136
1137 /* u32 sys_stack_size */
1138 gen_obj->obj_data.node_obj.ndb_props.sys_stack_size =
1139 atoi(token);
1140 token = strsep(&psz_cur, seps);
1141
1142 /* u32 stack_seg */
1143 gen_obj->obj_data.node_obj.ndb_props.stack_seg = atoi(token);
1144 token = strsep(&psz_cur, seps);
1145
1146 /* u32 message_depth */
1147 gen_obj->obj_data.node_obj.ndb_props.message_depth =
1148 atoi(token);
1149 token = strsep(&psz_cur, seps);
1150
1151 /* u32 num_input_streams */
1152 gen_obj->obj_data.node_obj.ndb_props.num_input_streams =
1153 atoi(token);
1154 token = strsep(&psz_cur, seps);
1155
1156 /* u32 num_output_streams */
1157 gen_obj->obj_data.node_obj.ndb_props.num_output_streams =
1158 atoi(token);
1159 token = strsep(&psz_cur, seps);
1160
1161 /* u32 utimeout */
1162 gen_obj->obj_data.node_obj.ndb_props.utimeout = atoi(token);
1163 token = strsep(&psz_cur, seps);
1164
1165 /* char *pstr_create_phase_fxn */
1166 DBC_REQUIRE(token);
1167 token_len = strlen(token);
1168 gen_obj->obj_data.node_obj.pstr_create_phase_fxn =
1169 kzalloc(token_len + 1, GFP_KERNEL);
1170 strncpy(gen_obj->obj_data.node_obj.pstr_create_phase_fxn,
1171 token, token_len);
1172 gen_obj->obj_data.node_obj.pstr_create_phase_fxn[token_len] =
1173 '\0';
1174 token = strsep(&psz_cur, seps);
1175
1176 /* char *pstr_execute_phase_fxn */
1177 DBC_REQUIRE(token);
1178 token_len = strlen(token);
1179 gen_obj->obj_data.node_obj.pstr_execute_phase_fxn =
1180 kzalloc(token_len + 1, GFP_KERNEL);
1181 strncpy(gen_obj->obj_data.node_obj.pstr_execute_phase_fxn,
1182 token, token_len);
1183 gen_obj->obj_data.node_obj.pstr_execute_phase_fxn[token_len] =
1184 '\0';
1185 token = strsep(&psz_cur, seps);
1186
1187 /* char *pstr_delete_phase_fxn */
1188 DBC_REQUIRE(token);
1189 token_len = strlen(token);
1190 gen_obj->obj_data.node_obj.pstr_delete_phase_fxn =
1191 kzalloc(token_len + 1, GFP_KERNEL);
1192 strncpy(gen_obj->obj_data.node_obj.pstr_delete_phase_fxn,
1193 token, token_len);
1194 gen_obj->obj_data.node_obj.pstr_delete_phase_fxn[token_len] =
1195 '\0';
1196 token = strsep(&psz_cur, seps);
1197
1198 /* Segment id for message buffers */
1199 gen_obj->obj_data.node_obj.msg_segid = atoi(token);
1200 token = strsep(&psz_cur, seps);
1201
1202 /* Message notification type */
1203 gen_obj->obj_data.node_obj.msg_notify_type = atoi(token);
1204 token = strsep(&psz_cur, seps);
1205
1206 /* char *pstr_i_alg_name */
1207 if (token) {
1208 token_len = strlen(token);
1209 gen_obj->obj_data.node_obj.pstr_i_alg_name =
1210 kzalloc(token_len + 1, GFP_KERNEL);
1211 strncpy(gen_obj->obj_data.node_obj.pstr_i_alg_name,
1212 token, token_len);
1213 gen_obj->obj_data.node_obj.pstr_i_alg_name[token_len] =
1214 '\0';
1215 token = strsep(&psz_cur, seps);
1216 }
1217
1218 /* Load type (static, dynamic, or overlay) */
1219 if (token) {
1220 gen_obj->obj_data.node_obj.us_load_type = atoi(token);
1221 token = strsep(&psz_cur, seps);
1222 }
1223
1224 /* Dynamic load data requirements */
1225 if (token) {
1226 gen_obj->obj_data.node_obj.ul_data_mem_seg_mask =
1227 atoi(token);
1228 token = strsep(&psz_cur, seps);
1229 }
1230
1231 /* Dynamic load code requirements */
1232 if (token) {
1233 gen_obj->obj_data.node_obj.ul_code_mem_seg_mask =
1234 atoi(token);
1235 token = strsep(&psz_cur, seps);
1236 }
1237
1238 /* Extract node profiles into node properties */
1239 if (token) {
1240
1241 gen_obj->obj_data.node_obj.ndb_props.count_profiles =
1242 atoi(token);
1243 for (i = 0;
1244 i <
1245 gen_obj->obj_data.node_obj.
1246 ndb_props.count_profiles; i++) {
1247 token = strsep(&psz_cur, seps);
1248 if (token) {
1249 /* Heap Size for the node */
1250 gen_obj->obj_data.node_obj.
1251 ndb_props.node_profiles[i].
1252 ul_heap_size = atoi(token);
1253 }
1254 }
1255 }
1256 token = strsep(&psz_cur, seps);
1257 if (token) {
1258 gen_obj->obj_data.node_obj.ndb_props.stack_seg_name =
1259 (u32) (token);
1260 }
1261
1262 break;
1263
1264 case DSP_DCDPROCESSORTYPE:
1265 /*
1266 * Parse COFF sect buffer to retrieve individual tokens used
1267 * to fill in object attrs.
1268 */
1269 psz_cur = psz_buf;
1270 token = strsep(&psz_cur, seps);
1271
1272 gen_obj->obj_data.proc_info.cb_struct = atoi(token);
1273 token = strsep(&psz_cur, seps);
1274
1275 gen_obj->obj_data.proc_info.processor_family = atoi(token);
1276 token = strsep(&psz_cur, seps);
1277
1278 gen_obj->obj_data.proc_info.processor_type = atoi(token);
1279 token = strsep(&psz_cur, seps);
1280
1281 gen_obj->obj_data.proc_info.clock_rate = atoi(token);
1282 token = strsep(&psz_cur, seps);
1283
1284 gen_obj->obj_data.proc_info.ul_internal_mem_size = atoi(token);
1285 token = strsep(&psz_cur, seps);
1286
1287 gen_obj->obj_data.proc_info.ul_external_mem_size = atoi(token);
1288 token = strsep(&psz_cur, seps);
1289
1290 gen_obj->obj_data.proc_info.processor_id = atoi(token);
1291 token = strsep(&psz_cur, seps);
1292
1293 gen_obj->obj_data.proc_info.ty_running_rtos = atoi(token);
1294 token = strsep(&psz_cur, seps);
1295
1296 gen_obj->obj_data.proc_info.node_min_priority = atoi(token);
1297 token = strsep(&psz_cur, seps);
1298
1299 gen_obj->obj_data.proc_info.node_max_priority = atoi(token);
1300
1301 #ifdef _DB_TIOMAP
1302 /* Proc object may contain additional(extended) attributes. */
1303 /* attr must match proc.hxx */
1304 for (entry_id = 0; entry_id < 7; entry_id++) {
1305 token = strsep(&psz_cur, seps);
1306 gen_obj->obj_data.ext_proc_obj.ty_tlb[entry_id].
1307 ul_gpp_phys = atoi(token);
1308
1309 token = strsep(&psz_cur, seps);
1310 gen_obj->obj_data.ext_proc_obj.ty_tlb[entry_id].
1311 ul_dsp_virt = atoi(token);
1312 }
1313 #endif
1314
1315 break;
1316
1317 default:
1318 status = -EPERM;
1319 break;
1320 }
1321
1322 return status;
1323 }
1324
1325 /*
1326 * ======== CompressBuffer ========
1327 * Purpose:
1328 * Compress the DSP buffer, if necessary, to conform to PC format.
1329 */
1330 static void compress_buf(char *psz_buf, u32 ul_buf_size, s32 char_size)
1331 {
1332 char *p;
1333 char ch;
1334 char *q;
1335
1336 p = psz_buf;
1337 if (p == NULL)
1338 return;
1339
1340 for (q = psz_buf; q < (psz_buf + ul_buf_size);) {
1341 ch = dsp_char2_gpp_char(q, char_size);
1342 if (ch == '\\') {
1343 q += char_size;
1344 ch = dsp_char2_gpp_char(q, char_size);
1345 switch (ch) {
1346 case 't':
1347 *p = '\t';
1348 break;
1349
1350 case 'n':
1351 *p = '\n';
1352 break;
1353
1354 case 'r':
1355 *p = '\r';
1356 break;
1357
1358 case '0':
1359 *p = '\0';
1360 break;
1361
1362 default:
1363 *p = ch;
1364 break;
1365 }
1366 } else {
1367 *p = ch;
1368 }
1369 p++;
1370 q += char_size;
1371 }
1372
1373 /* NULL out remainder of buffer. */
1374 while (p < q)
1375 *p++ = '\0';
1376 }
1377
1378 /*
1379 * ======== dsp_char2_gpp_char ========
1380 * Purpose:
1381 * Convert DSP char to host GPP char in a portable manner
1382 */
1383 static char dsp_char2_gpp_char(char *word, s32 dsp_char_size)
1384 {
1385 char ch = '\0';
1386 char *ch_src;
1387 s32 i;
1388
1389 for (ch_src = word, i = dsp_char_size; i > 0; i--)
1390 ch |= *ch_src++;
1391
1392 return ch;
1393 }
1394
1395 /*
1396 * ======== get_dep_lib_info ========
1397 */
1398 static int get_dep_lib_info(struct dcd_manager *hdcd_mgr,
1399 struct dsp_uuid *uuid_obj,
1400 u16 *num_libs,
1401 u16 *num_pers_libs,
1402 struct dsp_uuid *dep_lib_uuids,
1403 bool *prstnt_dep_libs,
1404 enum nldr_phase phase)
1405 {
1406 struct dcd_manager *dcd_mgr_obj = hdcd_mgr;
1407 char *psz_coff_buf = NULL;
1408 char *psz_cur;
1409 char *psz_file_name = NULL;
1410 struct cod_libraryobj *lib = NULL;
1411 u32 ul_addr = 0; /* Used by cod_get_section */
1412 u32 ul_len = 0; /* Used by cod_get_section */
1413 u32 dw_data_size = COD_MAXPATHLENGTH;
1414 char seps[] = ", ";
1415 char *token = NULL;
1416 bool get_uuids = (dep_lib_uuids != NULL);
1417 u16 dep_libs = 0;
1418 int status = 0;
1419
1420 DBC_REQUIRE(refs > 0);
1421
1422 DBC_REQUIRE(hdcd_mgr);
1423 DBC_REQUIRE(num_libs != NULL);
1424 DBC_REQUIRE(uuid_obj != NULL);
1425
1426 /* Initialize to 0 dependent libraries, if only counting number of
1427 * dependent libraries */
1428 if (!get_uuids) {
1429 *num_libs = 0;
1430 *num_pers_libs = 0;
1431 }
1432
1433 /* Allocate a buffer for file name */
1434 psz_file_name = kzalloc(dw_data_size, GFP_KERNEL);
1435 if (psz_file_name == NULL) {
1436 status = -ENOMEM;
1437 } else {
1438 /* Get the name of the library */
1439 status = dcd_get_library_name(hdcd_mgr, uuid_obj, psz_file_name,
1440 &dw_data_size, phase, NULL);
1441 }
1442
1443 /* Open the library */
1444 if (DSP_SUCCEEDED(status)) {
1445 status = cod_open(dcd_mgr_obj->cod_mgr, psz_file_name,
1446 COD_NOLOAD, &lib);
1447 }
1448 if (DSP_SUCCEEDED(status)) {
1449 /* Get dependent library section information. */
1450 status = cod_get_section(lib, DEPLIBSECT, &ul_addr, &ul_len);
1451
1452 if (DSP_FAILED(status)) {
1453 /* Ok, no dependent libraries */
1454 ul_len = 0;
1455 status = 0;
1456 }
1457 }
1458
1459 if (DSP_FAILED(status) || !(ul_len > 0))
1460 goto func_cont;
1461
1462 /* Allocate zeroed buffer. */
1463 psz_coff_buf = kzalloc(ul_len + 4, GFP_KERNEL);
1464 if (psz_coff_buf == NULL)
1465 status = -ENOMEM;
1466
1467 /* Read section contents. */
1468 status = cod_read_section(lib, DEPLIBSECT, psz_coff_buf, ul_len);
1469 if (DSP_FAILED(status))
1470 goto func_cont;
1471
1472 /* Compress and format DSP buffer to conform to PC format. */
1473 compress_buf(psz_coff_buf, ul_len, DSPWORDSIZE);
1474
1475 /* Read from buffer */
1476 psz_cur = psz_coff_buf;
1477 while ((token = strsep(&psz_cur, seps)) && *token != '\0') {
1478 if (get_uuids) {
1479 if (dep_libs >= *num_libs) {
1480 /* Gone beyond the limit */
1481 break;
1482 } else {
1483 /* Retrieve UUID string. */
1484 uuid_uuid_from_string(token,
1485 &(dep_lib_uuids
1486 [dep_libs]));
1487 /* Is this library persistent? */
1488 token = strsep(&psz_cur, seps);
1489 prstnt_dep_libs[dep_libs] = atoi(token);
1490 dep_libs++;
1491 }
1492 } else {
1493 /* Advanc to next token */
1494 token = strsep(&psz_cur, seps);
1495 if (atoi(token))
1496 (*num_pers_libs)++;
1497
1498 /* Just counting number of dependent libraries */
1499 (*num_libs)++;
1500 }
1501 }
1502 func_cont:
1503 if (lib)
1504 cod_close(lib);
1505
1506 /* Free previously allocated dynamic buffers. */
1507 kfree(psz_file_name);
1508
1509 kfree(psz_coff_buf);
1510
1511 return status;
1512 }
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