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si_mgt.c @ 46

Last change on this file since 46 was 46, checked in by megakiss, 11 years ago
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1	/***************************************************************
2	**
3	** Broadcom Corp. Confidential
4	** Copyright 2003-2008 Broadcom Corp. All Rights Reserved.
5	**
6	** THIS SOFTWARE MAY ONLY BE USED SUBJECT TO AN EXECUTED
7	** SOFTWARE LICENSE AGREEMENT BETWEEN THE USER AND BROADCOM.
8	** YOU HAVE NO RIGHT TO USE OR EXPLOIT THIS MATERIAL EXCEPT
9	** SUBJECT TO THE TERMS OF SUCH AN AGREEMENT.
10	**
11	** File: si_mgt.c
12	** Description: function that parses the MGT
13	** table section.
14	**
15	** Created: 03/08/2001
16	**
17	** REVISION:
18	**
19	** $Log: $
20	**
21	**
22	****************************************************************/
23
24	#include "si.h"
25	#include "si_os.h"
26	#include "si_dbg.h"
27	#include "si_util.h"
28	#include "si_list.h"
29	#include "si_aeit.h"
30	#include "si_aett.h"
31	#include "si_mgt.h"
32	#include "si_descriptors.h"
33
34
35	/* local function prototypes. */
36	static SI_RET_CODE SI_MGT_Upadte_Total_AEIT_NUMBER(unsigned long aeit_n);
37	static SI_RET_CODE SI_MGT_Upadte_Total_AETT_NUMBER(unsigned long aett_n);
38	static SI_RET_CODE SI_MGT_AEIT_Del_All_Slot(void);
39	static SI_RET_CODE SI_MGT_AETT_Del_All_Slot(void);
40	static SI_RET_CODE SI_MGT_AEIT_Create_Slot (unsigned char current, SI_AEIT_SLOT prev_slot,
41	unsigned long table_type, unsigned long version_number, unsigned long table_pid);
42	static SI_RET_CODE SI_MGT_AETT_Create_Slot (unsigned char current, SI_AETT_SLOT prev_slot,
43	unsigned long table_type, unsigned long version_number, unsigned long table_pid);
44	static SI_RET_CODE SI_MGT_AEIT_Type_Receive(unsigned char *current, unsigned char aeit_n, unsigned long table_type);
45	static SI_RET_CODE SI_MGT_AETT_Type_Receive(unsigned char *current, unsigned char aett_n, unsigned long table_type);
46
47
48	struct aeit_slot_list head_aeit_slot, current_aeit0_slot; /* always point to AEIT-0 */
49	struct aett_slot_list head_aett_slot, current_aett0_slot; /* always point to AETT-0 */
50
51	unsigned char MGT_table_version;
52	unsigned short past_aeit_n, past_aett_n; /* total number of slots we keep for the past. */
53	unsigned short mgt_aeit_n, mgt_aett_n; /* total number of slots defined by MGT. */
54
55	SI_mutex m_aeit, m_aett;
56
57
58	void SI_MGT_Init (void)
59	{
60	int i;
61
62	SI_LST_D_INIT(&current_aeit0_slot);
63	SI_LST_D_INIT(&current_aett0_slot);
64	SI_LST_D_INIT(&head_aeit_slot);
65	SI_LST_D_INIT(&head_aett_slot);
66
67	MGT_table_version = 0xff;
68
69	past_aeit_n = past_aett_n = 0;
70	mgt_aeit_n = mgt_aett_n = 0;
71	SI_mutex_init(m_aeit);
72	SI_mutex_init(m_aett);
73	}
74
75	static SI_RET_CODE SI_MGT_Upadte_Total_AEIT_NUMBER(unsigned long aeit_n)
76	{
77	SI_AEIT_SLOT * aeit_slot, *temps;
78	int i;
79
80	if (mgt_aeit_n > aeit_n)
81	{
82	/* if the new number of slots is smaller than current number. I don't know
83	how possible it is?? */
84	aeit_slot = SI_LST_D_FIRST(&current_aeit0_slot);
85	for (i=0; ((i<aeit_n) && aeit_slot); i++)
86	aeit_slot = SI_LST_D_NEXT(aeit_slot, slot_link);
87	if (i != aeit_n \|\| aeit_slot == NULL)
88	return SI_AEIT_LIST_ERROR;
89
90	/* free all the extra slots before. */
91	for (i=aeit_n; i<mgt_aeit_n; i++)
92	{
93	if (aeit_slot)
94	{
95	temps = SI_LST_D_NEXT(aeit_slot, slot_link);
96	SI_LST_D_REMOVE(&head_aeit_slot, aeit_slot, slot_link);
97	SI_AEIT_Clear_Slot(aeit_slot);
98	SI_free(aeit_slot);
99	aeit_slot = temps;
100	}
101	}
102
103	}
104
105	mgt_aeit_n = aeit_n;
106
107	return SI_SUCCESS;
108	}
109
110	static SI_RET_CODE SI_MGT_Upadte_Total_AETT_NUMBER(unsigned long aett_n)
111	{
112	SI_AETT_SLOT * aett_slot, *temps;
113	int i;
114
115	if (mgt_aett_n > aett_n)
116	{
117	/* if the new number of slots is smaller than current number. I don't know
118	how possible it is?? */
119	aett_slot = SI_LST_D_FIRST(&current_aett0_slot);
120	for (i=0; ((i<aett_n) && aett_slot); i++)
121	aett_slot = SI_LST_D_NEXT(aett_slot, slot_link);
122	if (i != aett_n \|\| aett_slot == NULL)
123	return SI_AETT_LIST_ERROR;
124
125	/* free all the extra slots before. */
126	for (i=aett_n; i<mgt_aett_n; i++)
127	{
128	if (aett_slot)
129	{
130	temps = SI_LST_D_NEXT(aett_slot, slot_link);
131	SI_LST_D_REMOVE(&head_aett_slot, aett_slot, slot_link);
132	SI_AETT_Clear_Slot(aett_slot);
133	SI_free(aett_slot);
134	aett_slot = temps;
135	}
136	}
137
138	}
139
140	mgt_aett_n = aett_n;
141
142	return SI_SUCCESS;
143	}
144
145
146	static SI_RET_CODE SI_MGT_AEIT_Del_All_Slot(void)
147	{
148	SI_AEIT_SLOT * aeit_slot;
149
150	while ((aeit_slot = SI_LST_D_FIRST(&head_aeit_slot)))
151	{
152	SI_LST_D_REMOVE_HEAD(&head_aeit_slot, slot_link);
153	SI_AEIT_Clear_Slot(aeit_slot);
154	SI_free(aeit_slot);
155	}
156
157	SI_LST_D_INIT(&current_aeit0_slot);
158	SI_LST_D_INIT(&head_aeit_slot);
159	past_aeit_n = 0;
160	mgt_aeit_n = 0;
161
162	return SI_SUCCESS;
163	}
164
165	static SI_RET_CODE SI_MGT_AETT_Del_All_Slot(void)
166	{
167	SI_AETT_SLOT * aett_slot;
168
169	while ((aett_slot = SI_LST_D_FIRST(&head_aett_slot)))
170	{
171	SI_LST_D_REMOVE_HEAD(&head_aett_slot, slot_link);
172	SI_AETT_Clear_Slot(aett_slot);
173	SI_free(aett_slot);
174	}
175
176	SI_LST_D_INIT(&current_aett0_slot);
177	SI_LST_D_INIT(&head_aett_slot);
178	past_aett_n = 0;
179	mgt_aett_n = 0;
180
181	return SI_SUCCESS;
182	}
183
184	static SI_RET_CODE SI_MGT_AEIT_Create_Slot (unsigned char current, SI_AEIT_SLOT prev_slot,
185	unsigned long table_type, unsigned long version_number, unsigned long table_pid)
186	{
187	SI_AEIT_SLOT * aeit_slot;
188
189	if ((aeit_slot = SI_AEIT_Create_Slot()) == NULL)
190	{
191	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT failed to create AEIT slot!!!\n"));
192	return SI_NO_MEMORY;
193	}
194
195	aeit_slot->MGT_tag = (table_type&0xff);
196	aeit_slot->MGT_version_number = version_number;
197	aeit_slot->pid = table_pid;
198
199	if (prev_slot)
200	SI_LST_D_INSERT_AFTER(prev_slot, aeit_slot, slot_link);
201	else
202	{
203	/* in this case the slot list MUST be EMPTY! */
204	/* create the first element in aeit slot list. init head and current aeit0 pointer. */
205	SI_LST_D_INSERT_HEAD(&current_aeit0_slot, aeit_slot, slot_link);
206	SI_LST_D_FIRST(&head_aeit_slot) = SI_LST_D_FIRST(&current_aeit0_slot);
207	}
208
209	return SI_SUCCESS;
210	}
211
212	static SI_RET_CODE SI_MGT_AETT_Create_Slot (unsigned char current, SI_AETT_SLOT prev_slot,
213	unsigned long table_type, unsigned long version_number, unsigned long table_pid)
214	{
215	SI_AETT_SLOT * aett_slot;
216
217	if ((aett_slot = SI_AETT_Create_Slot()) == NULL)
218	{
219	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT failed to create AETT slot!!!\n"));
220	return SI_NO_MEMORY;
221	}
222
223	aett_slot->MGT_tag = (table_type&0xff);
224	aett_slot->MGT_version_number = version_number;
225	aett_slot->pid = table_pid;
226
227	if (prev_slot)
228	SI_LST_D_INSERT_AFTER(prev_slot, aett_slot, slot_link);
229	else
230	{
231	/* in this case the slot list MUST be EMPTY! */
232	/* create the first element in aett slot list. init head and current aett0 pointer. */
233	SI_LST_D_INSERT_HEAD(&current_aett0_slot, aett_slot, slot_link);
234	SI_LST_D_FIRST(&head_aett_slot) = SI_LST_D_FIRST(&current_aett0_slot);
235	}
236
237	return SI_SUCCESS;
238	}
239
240	/********************************************************************
241	Function : SI_MGT_AEIT_Type_Receive
242	Description : Function to handle the receiving of AEIT table type
243	for MGT table. It will create and
244	keep track of AEIT instances.
245	Input : current, point to the current mgt table type data.
246	aeit_n: the instance of AEIT type received.
247	tag : the table type of this aeit slot.
248	Output : Success code.
249	********************************************************************/
250	static SI_RET_CODE SI_MGT_AEIT_Type_Receive(unsigned char *current, unsigned char aeit_n, unsigned long table_type)
251	{
252	SI_AEIT_SLOT * aeit_slot, prev_aeit_slot, new_aeit_slot;
253	int i, j;
254	unsigned long version_number, table_pid;
255
256	version_number = SI_Construct_Data(current,
257	MGT_TABLE_TYPE_VERSION_NUMBER_BYTE_INDX,
258	MGT_TABLE_TYPE_VERSION_NUMBER_BYTE_NUM,
259	MGT_TABLE_TYPE_VERSION_NUMBER_SHIFT,
260	MGT_TABLE_TYPE_VERSION_NUMBER_MASK);
261	table_pid = SI_Construct_Data(current,
262	MGT_TABLE_TYPE_PID_BYTE_INDX,
263	MGT_TABLE_TYPE_PID_BYTE_NUM,
264	MGT_TABLE_TYPE_PID_SHIFT,
265	MGT_TABLE_TYPE_PID_MASK);
266
267	/* find where aeit-n points to. */
268	aeit_slot = SI_LST_D_FIRST(&current_aeit0_slot);
269	if (aeit_slot)
270	prev_aeit_slot = SI_LST_D_PREV(aeit_slot, slot_link);
271	else
272	prev_aeit_slot = NULL;
273	for (i=0; ((i<aeit_n) && aeit_slot); i++)
274	{
275	prev_aeit_slot = aeit_slot;
276	aeit_slot = SI_LST_D_NEXT(aeit_slot, slot_link);
277	}
278
279	/* if the slot does not exist. */
280	if (aeit_slot == NULL)
281	return SI_MGT_AEIT_Create_Slot(current, prev_aeit_slot, table_type, version_number, table_pid);
282
283	/* the slot is already there. */
284	if (aeit_slot->MGT_tag != (table_type&0xff))
285	{
286	/* the slot may have moved. We SHOULD only be able to get here the first time!!! Since
287	after we moved the first time, everything else should be aligned. */
288	if (aeit_n == 0)
289	{
290	/* for AEIT-0. */
291	/* find the MGT_tag down the line that matches the current received one.
292	should be right after the current slot. */
293	j=0;
294	while (aeit_slot->MGT_tag != (table_type&0xff))
295	{
296	if (SI_LST_D_NEXT(aeit_slot, slot_link) == NULL)
297	break;
298	j++;
299	aeit_slot = SI_LST_D_NEXT(aeit_slot, slot_link);
300	}
301
302	if (aeit_slot->MGT_tag != (table_type&0xff))
303	{
304	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT failed to find AEIT-%d slot!!!\n", aeit_n));
305	/* we should free everything and start over again. */
306	SI_MGT_AEIT_Del_All_Slot();
307	return SI_AEIT_LIST_ERROR;
308	}
309
310	if (j>1)
311	{
312	/* if the AEIT slot has shifted for more than 1 spot. We should give
313	a warning. */
314	SI_DBG_PRINT(E_SI_WRN_MSG,("MGT AEIT-%d shifted %d slots\n", aeit_n, j));
315	}
316
317	/* modify the current_aeit_slot pointer. */
318	SI_LST_D_FIRST(&current_aeit0_slot) = aeit_slot;
319
320	/* Check the version and do as needed. */
321	if (version_number != aeit_slot->MGT_version_number)
322	{
323	/* The version number changed. clear the old slot
324	and put new data in it. */
325	SI_AEIT_Clear_Slot(aeit_slot);
326	aeit_slot->MGT_tag = (table_type&0xff);
327	aeit_slot->MGT_version_number = version_number;
328	}
329	/* always update the pid. */
330	aeit_slot->pid = table_pid;
331
332	/* check to see if we need to delete any past AEIT slots. */
333	past_aeit_n += j;
334	if (past_aeit_n > MAX_PAST_AEXT_N)
335	{
336	for (j=0; ((j<(past_aeit_n-MAX_PAST_AEXT_N)) && ((aeit_slot = SI_LST_D_FIRST(&head_aeit_slot)) != NULL)); j++)
337	{
338	SI_LST_D_REMOVE_HEAD(&head_aeit_slot, slot_link);
339	SI_AEIT_Clear_Slot(aeit_slot);
340	SI_free(aeit_slot);
341	}
342	}
343	}
344	else
345	{
346	/* for AEIT-n where n>0. should not happen. */
347	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT AEIT-%d slot does not match new one!!!\n", aeit_n));
348	/* we should just replace it with the new one */
349	SI_AEIT_Clear_Slot(aeit_slot);
350	aeit_slot->MGT_tag = (table_type&0xff);
351	aeit_slot->MGT_version_number = version_number;
352	aeit_slot->pid = table_pid;
353	/* we still want to keep going after this . */
354	}
355	}
356	else /if (aeit_slot->MGT_tag == (table_type&0xff))/
357	{
358	/* the slot has not moved yet. Check the version and do as needed. */
359	if (version_number != aeit_slot->MGT_version_number)
360	{
361	/* The version number changed. clear the old slot
362	and put new data in it. */
363	SI_AEIT_Clear_Slot(aeit_slot);
364	aeit_slot->MGT_tag = (table_type&0xff);
365	aeit_slot->MGT_version_number = version_number;
366	}
367	aeit_slot->pid = table_pid; /* always update the pid. */
368	}
369
370
371	return SI_SUCCESS;
372	}
373
374	/********************************************************************
375	Function : SI_MGT_AETT_Type_Receive
376	Description : Function to handle the receiving of AETT table type
377	for MGT table. It will create and
378	keep track of AETT instances.
379	Input : current, point to the current mgt table type data.
380	aett_n: the instance of AETT type received.
381	tag : the table type of this aett slot.
382	Output : Success code.
383	********************************************************************/
384	static SI_RET_CODE SI_MGT_AETT_Type_Receive(unsigned char *current, unsigned char aett_n, unsigned long table_type)
385	{
386	SI_AETT_SLOT * aett_slot, prev_aett_slot, new_aett_slot;
387	int i, j;
388	unsigned long version_number, table_pid;
389
390	version_number = SI_Construct_Data(current,
391	MGT_TABLE_TYPE_VERSION_NUMBER_BYTE_INDX,
392	MGT_TABLE_TYPE_VERSION_NUMBER_BYTE_NUM,
393	MGT_TABLE_TYPE_VERSION_NUMBER_SHIFT,
394	MGT_TABLE_TYPE_VERSION_NUMBER_MASK);
395	table_pid = SI_Construct_Data(current,
396	MGT_TABLE_TYPE_PID_BYTE_INDX,
397	MGT_TABLE_TYPE_PID_BYTE_NUM,
398	MGT_TABLE_TYPE_PID_SHIFT,
399	MGT_TABLE_TYPE_PID_MASK);
400
401	/* find where aett-n points to. */
402	aett_slot = SI_LST_D_FIRST(&current_aett0_slot);
403	if (aett_slot)
404	prev_aett_slot = SI_LST_D_PREV(aett_slot, slot_link);
405	else
406	prev_aett_slot = NULL;
407	for (i=0; ((i<aett_n) && aett_slot); i++)
408	{
409	prev_aett_slot = aett_slot;
410	aett_slot = SI_LST_D_NEXT(aett_slot, slot_link);
411	}
412
413	/* if the slot does not exist. */
414	if (aett_slot == NULL)
415	return SI_MGT_AETT_Create_Slot(current, prev_aett_slot, table_type, version_number, table_pid);
416
417	/* the slot is already there. */
418	if (aett_slot->MGT_tag != (table_type&0xff))
419	{
420	/* the slot may have moved. We SHOULD only be able to get here the first time!!! Since
421	after we moved the first time, everything else should be aligned. */
422	if (aett_n == 0)
423	{
424	/* for AETT-0. */
425	/* find the MGT_tag down the line that matches the current received one.
426	should be right after the current slot. */
427	j=0;
428	while (aett_slot->MGT_tag != (table_type&0xff))
429	{
430	if (SI_LST_D_NEXT(aett_slot, slot_link) == NULL)
431	break;
432	j++;
433	aett_slot = SI_LST_D_NEXT(aett_slot, slot_link);
434	}
435
436	if (aett_slot->MGT_tag != (table_type&0xff))
437	{
438	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT failed to find AETT-%d slot!!!\n", aett_n));
439	/* we should free everything and start over again. */
440	SI_MGT_AETT_Del_All_Slot();
441	return SI_AETT_LIST_ERROR;
442	}
443
444	if (j>1)
445	{
446	/* if the AETT slot has shifted for more than 1 spot. We should give
447	a warning. */
448	SI_DBG_PRINT(E_SI_WRN_MSG,("MGT AETT-%d shifted %d slots\n", aett_n, j));
449	}
450
451	/* modify the current_aett_slot pointer. */
452	SI_LST_D_FIRST(&current_aett0_slot) = aett_slot;
453
454	/* Check the version and do as needed. */
455	if (version_number != aett_slot->MGT_version_number)
456	{
457	/* The version number changed. clear the old slot
458	and put new data in it. */
459	SI_AETT_Clear_Slot(aett_slot);
460	aett_slot->MGT_tag = (table_type&0xff);
461	aett_slot->MGT_version_number = version_number;
462	}
463	/* always update the pid. */
464	aett_slot->pid = table_pid;
465
466	/* check to see if we need to delete any past AETT slots. */
467	past_aett_n += j;
468	if (past_aett_n > MAX_PAST_AEXT_N)
469	{
470	for (j=0; ((j<(past_aett_n-MAX_PAST_AEXT_N)) && ((aett_slot = SI_LST_D_FIRST(&head_aett_slot)) != NULL)); j++)
471	{
472	SI_LST_D_REMOVE_HEAD(&head_aett_slot, slot_link);
473	SI_AETT_Clear_Slot(aett_slot);
474	SI_free(aett_slot);
475	}
476	}
477	}
478	else
479	{
480	/* for AETT-n where n>0. It should not happen. */
481	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT AETT-%d slot does not match new one!!!\n", aett_n));
482	/* we should just replace it with the new one */
483	SI_AETT_Clear_Slot(aett_slot);
484	aett_slot->MGT_tag = (table_type&0xff);
485	aett_slot->MGT_version_number = version_number;
486	aett_slot->pid = table_pid;
487	/* we still want to keep going after this . */
488	}
489	}
490	else /if (aett_slot->MGT_tag == (table_type&0xff))/
491	{
492	/* the slot has not moved yet. Check the version and do as needed. */
493	if (version_number != aett_slot->MGT_version_number)
494	{
495	/* The version number changed. clear the old slot
496	and put new data in it. */
497	SI_AETT_Clear_Slot(aett_slot);
498	aett_slot->MGT_tag = (table_type&0xff);
499	aett_slot->MGT_version_number = version_number;
500	}
501	aett_slot->pid = table_pid; /* always update the pid. */
502	}
503
504
505	return SI_SUCCESS;
506	}
507
508	/*********************************************************************/
509	/* Function : SI_MGT_parse */
510	/* Description : Function to parse the MGT table. It will create and */
511	/* keep track of AEIT and AETT instances. */
512	/* Input : mgt_table, point to the mgt table data. */
513	/* Output : Success code. */
514	/*********************************************************************/
515	SI_RET_CODE SI_MGT_parse (unsigned char * mgt_table)
516	{
517	unsigned long temp, i;
518	unsigned long section_length;
519	unsigned long tables_defined, table_type, num_bytes;
520	unsigned long CRC_start;
521	unsigned long desc_start, len;
522	unsigned long desc_tag, desc_len;
523	unsigned char desc, current;
524	unsigned char curr_aeit_n, curr_aett_n;
525	SI_RET_CODE result;
526
527	SI_DBG_PRINT(E_SI_DBG_MSG,("MGT Table received.\n"));
528
529	temp = *mgt_table;
530	if (temp != SI_MGT_TABLE_ID)
531	{
532	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT Table ID error!!! %x\n", temp));
533	return SI_TABLE_ID_ERROR;
534	}
535
536	/* calculate and check section length. */
537	section_length = SI_Construct_Data(mgt_table,
538	MGT_SECTION_LENGTH_BYTE_INDX,
539	MGT_SECTION_LENGTH_BYTE_NUM,
540	MGT_SECTION_LENGTH_SHIFT,
541	MGT_SECTION_LENGTH_MASK);
542	section_length += MGT_SECTION_LENGTH_BYTE_INDX+MGT_SECTION_LENGTH_BYTE_NUM;
543	if (section_length > SI_LONG_SECTION_LENGTH)
544	{
545	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT Table section length error!!! %x\n", section_length));
546	return SI_SECTION_LENGTH_ERROR;
547	}
548
549	/* We do the CRC check here to verify the contents of this section. */
550	if (SI_CRC32_Check(mgt_table, section_length) != SI_SUCCESS)
551	{
552	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT Table section CRC error!!!\n"));
553	//return SI_CRC_ERROR;
554	}
555
556	/* check to make sure protocol version is zero. */
557	temp = SI_Construct_Data(mgt_table,
558	MGT_PROTOCOL_VERSION_BYTE_INDX,
559	MGT_PROTOCOL_VERSION_BYTE_NUM,
560	MGT_PROTOCOL_VERSION_SHIFT,
561	MGT_PROTOCOL_VERSION_MASK);
562	if (temp != SI_CURRENT_PROTOCOL_VERSION)
563	{
564	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT Table PROTOCOL version error!!! %x\n", temp));
565	return SI_PROTOCOL_VER_ERROR;
566	}
567
568	/* make sure that section_number and last_section_number are both 0. */
569	temp = SI_Construct_Data(mgt_table,
570	MGT_SECTION_NUMBER_BYTE_INDX,
571	MGT_SECTION_NUMBER_BYTE_NUM,
572	MGT_SECTION_NUMBER_SHIFT,
573	MGT_SECTION_NUMBER_MASK);
574	if (temp != 0)
575	{
576	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT Table section_number not zero!!! %x\n", temp));
577	return SI_SECTION_NUMBER_ERROR;
578	}
579	temp = SI_Construct_Data(mgt_table,
580	MGT_LAST_SECTION_NUMBER_BYTE_INDX,
581	MGT_LAST_SECTION_NUMBER_BYTE_NUM,
582	MGT_LAST_SECTION_NUMBER_SHIFT,
583	MGT_LAST_SECTION_NUMBER_MASK);
584	if (temp != 0)
585	{
586	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT Table last_section_number not zero!!! %x\n", temp));
587	return SI_SECTION_NUMBER_ERROR;
588	}
589
590	/* look at current_next_indicator. It should be 1 for MGT. */
591	temp = SI_Construct_Data(mgt_table,
592	MGT_CURRENT_NEXT_INDICATOR_BYTE_INDX,
593	MGT_CURRENT_NEXT_INDICATOR_BYTE_NUM,
594	MGT_CURRENT_NEXT_INDICATOR_SHIFT,
595	MGT_CURRENT_NEXT_INDICATOR_MASK);
596	if (temp != 1)
597	{
598	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT Table current_next_indicator not one!!! %x\n", temp));
599	return SI_CURRENT_NEXT_INDICATOR_ERROR;
600	}
601
602	/* Now check the version number and decide whether we want to update or not */
603	temp = SI_Construct_Data(mgt_table,
604	MGT_VERSION_NUMBER_BYTE_INDX,
605	MGT_VERSION_NUMBER_BYTE_NUM,
606	MGT_VERSION_NUMBER_SHIFT,
607	MGT_VERSION_NUMBER_MASK);
608	if (MGT_table_version == temp)
609	return SI_SUCCESS; /* do not need to do anything when it is the same version */
610
611	/* new MGT table received!!! */
612	MGT_table_version = temp;
613	SI_DBG_PRINT(E_SI_DBG_MSG,("New MGT Table received!\n"));
614
615	tables_defined = SI_Construct_Data(mgt_table,
616	MGT_TABLES_DEFINED_BYTE_INDX,
617	MGT_TABLES_DEFINED_BYTE_NUM,
618	MGT_TABLES_DEFINED_SHIFT,
619	MGT_TABLES_DEFINED_MASK);
620	printf("MGT tables define %x\n", tables_defined);
621
622	/* going through all the tables. */
623	current = mgt_table + MGT_TABLES_DEFINED_BYTE_INDX + MGT_TABLES_DEFINED_BYTE_NUM;
624	curr_aeit_n = curr_aett_n = 0;
625	for (i=0; i<tables_defined; i++)
626	{
627	table_type = SI_Construct_Data(current,
628	MGT_TABLE_TYPE_BYTE_INDX,
629	MGT_TABLE_TYPE_BYTE_NUM,
630	MGT_TABLE_TYPE_SHIFT,
631	MGT_TABLE_TYPE_MASK);
632	num_bytes = SI_Construct_Data(current,
633	MGT_NUMBER_BYTES_BYTE_INDX,
634	MGT_NUMBER_BYTES_BYTE_NUM,
635	MGT_NUMBER_BYTES_SHIFT,
636	MGT_NUMBER_BYTES_MASK);
637	desc_len = SI_Construct_Data(current,
638	MGT_TABLE_TYPE_DESC_LENGTH_BYTE_INDX,
639	MGT_TABLE_TYPE_DESC_LENGTH_BYTE_NUM,
640	MGT_TABLE_TYPE_DESC_LENGTH_SHIFT,
641	MGT_TABLE_TYPE_DESC_LENGTH_MASK);
642
643	/* check for AEIT/AETT types. */
644	if (table_type>=MGT_TABLE_TYPE_AEIT_START && table_type<=MGT_TABLE_TYPE_AEIT_END)
645	{
646	SI_DBG_PRINT(E_SI_DBG_MSG,("MGT: AEIT type received.\n"));
647
648	/* lock mutex for AEIT table access. */
649	SI_mutex_lock(m_aeit);
650
651	/* handle the AEIT types. */
652	result = SI_MGT_AEIT_Type_Receive(current, curr_aeit_n, table_type);
653	if (result == SI_AEIT_LIST_ERROR)
654	{
655	/* error happened, */
656	/* for AEIT_LIST_ERROR, we already cleared the slot list. Now reprocess it. */
657	if ((result = SI_MGT_AEIT_Type_Receive(current, curr_aeit_n, table_type)) != SI_SUCCESS)
658	{
659	SI_mutex_unlock(m_aeit);
660	return result;
661	}
662	}
663	else if (result != SI_SUCCESS)
664	{
665	/Other errors, we simply return. /
666	SI_mutex_unlock(m_aeit);
667	return result;
668	}
669
670	curr_aeit_n++; /* incrementing current number of AEIT's received. */
671
672	/* unlock mutex for AEIT table access. */
673	SI_mutex_unlock(m_aeit);
674	}
675	else if (table_type>=MGT_TABLE_TYPE_AETT_START && table_type<=MGT_TABLE_TYPE_AETT_END)
676	{
677	SI_DBG_PRINT(E_SI_DBG_MSG,("MGT: AETT type received.\n"));
678
679	/* lock mutex for AETT table access. */
680	SI_mutex_lock(m_aett);
681
682	/* handle the AETT types. */
683	result = SI_MGT_AETT_Type_Receive(current, curr_aett_n, table_type);
684	if (result == SI_AETT_LIST_ERROR)
685	{
686	/* error happened, */
687	/* for AETT_LIST_ERROR, we already cleared the slot list. Now reprocess it. */
688	if ((result = SI_MGT_AETT_Type_Receive(current, curr_aett_n, table_type)) != SI_SUCCESS)
689	{
690	SI_mutex_unlock(m_aett);
691	return result;
692	}
693	}
694	else if (result != SI_SUCCESS)
695	{
696	/Other errors, we simply return. /
697	SI_mutex_unlock(m_aett);
698	return result;
699	}
700
701	curr_aett_n++; /* incrementing current number of AETT's received. */
702
703	/* unlock mutex for AETT table access. */
704	SI_mutex_unlock(m_aett);
705	}
706
707	#if 0 /* I don't knopw what num_bytes are for? */
708	/* for now just handle the AEIT/AETT table type. */
709	if (num_bytes != desc_len + MGT_TABLE_TYPE_DESC_LENGTH_BYTE_NUM)
710	{
711	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT Table type %x, number_bytes = %d, table type descriptor length %d!!!\n", table_type, num_bytes, desc_len));
712	return SI_SECTION_LENGTH_ERROR;
713	}
714	#endif
715
716	/* only handle stuffing descriptors for now. */
717	current += MGT_TABLE_TYPE_DESC_LENGTH_BYTE_INDX+MGT_TABLE_TYPE_DESC_LENGTH_BYTE_NUM;
718	desc_start = 0;
719	while (desc_start < desc_len)
720	{
721	if ( (desc_tag = *(current++)) != SI_DESC_STUFFING)
722	SI_DBG_PRINT(E_SI_WRN_MSG,("MGT table type descriptor %x received! Ignoring!\n", desc_tag));
723
724	len = (current++); / desc length. */
725	current += len;
726	desc_start += len+2;
727	}
728
729	if (desc_start != desc_len)
730	{
731	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT Table type descriptor length error!!!\n"));
732	return SI_DESCRIPTOR_ERROR;
733	}
734
735	} /* end of for (i=0; i<tables_defined; i++) */
736
737	/* check for total number of AEIT/AETT-n's received. */
738	SI_mutex_lock(m_aeit);
739	SI_MGT_Upadte_Total_AEIT_NUMBER (curr_aeit_n);
740	SI_mutex_unlock(m_aeit);
741
742	SI_mutex_lock(m_aett);
743	SI_MGT_Upadte_Total_AETT_NUMBER (curr_aett_n);
744	SI_mutex_unlock(m_aett);
745
746	/* just for fun, go through table desc and make sure the section length works out. */
747	desc_len = SI_Construct_Data(current,
748	MGT_DESC_LENGTH_BYTE_INDX,
749	MGT_DESC_LENGTH_BYTE_NUM,
750	MGT_DESC_LENGTH_SHIFT,
751	MGT_DESC_LENGTH_MASK);
752	current += MGT_DESC_LENGTH_BYTE_INDX+MGT_DESC_LENGTH_BYTE_NUM;
753	desc_start = 0;
754	while (desc_start < desc_len)
755	{
756	if ( (desc_tag = *(current++)) != SI_DESC_STUFFING)
757	SI_DBG_PRINT(E_SI_WRN_MSG,("MGT table descriptor %x received! Ignoring!\n", desc_tag));
758
759	len = (current++); / desc length. */
760	current += len;
761	desc_start += len+2;
762	}
763
764	if (desc_start != desc_len)
765	{
766	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT Table descriptor length error!!!\n"));
767	return SI_DESCRIPTOR_ERROR;
768	}
769
770	if (current+SI_CRC_LENGTH != (mgt_table + section_length))
771	{
772	SI_DBG_PRINT(E_SI_ERR_MSG,("MGT Table length error!!!\n"));
773	return SI_SECTION_LENGTH_ERROR;
774	}
775
776	return SI_SUCCESS;
777	}

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source: svn/newcon3bcm2_21bu/BSEAV/lib/scte65/mgt/si_mgt.c @ 46

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