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chan_mgr.c

Last change on this file was 76, checked in by megakiss, 10 years ago
1W 대기전력을 만족시키기 위하여 POWEROFF시 튜너를 Standby 상태로 함
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1	/***************************************************************************
2	* Copyright (c) 2003-2013, Broadcom Corporation
3	* All Rights Reserved
4	* Confidential Property of Broadcom Corporation
5	*
6	* THIS SOFTWARE MAY ONLY BE USED SUBJECT TO AN EXECUTED SOFTWARE LICENSE
7	* AGREEMENT BETWEEN THE USER AND BROADCOM. YOU HAVE NO RIGHT TO USE OR
8	* EXPLOIT THIS MATERIAL EXCEPT SUBJECT TO THE TERMS OF SUCH AN AGREEMENT.
9	*
10	* $brcm_Workfile: $
11	* $brcm_Revision: $
12	* $brcm_Date: $
13	*
14	* Module Description:
15	*
16	* Revision History:
17	*
18	* $brcm_Log: $
19	*
20	***************************************************************************/
21
22	#include "chan_mgr.h"
23	#include "bstd.h"
24	#include "bavc.h"
25	#include "ts_psi.h"
26	#include "ts_pat.h"
27	#include "ts_pmt.h"
28	#include "ts_scte_18.h"
29	#include "bapp.h"
30	#include "psip_ett.h"
31	#include "si.h"
32	#include "psip_rrt.h"
33	#include "bsettop_smessage.h"
34	#include "image_recv.h"
35	#include "ca_parser.h"
36	#include "bos_task_priorities.h"
37	#include "bapp_util.h"
38	#include "ch_map.h"
39	#include "bsettop_tuner.h"
40
41	/* defined in tsid_to_utc_off.c */
42	extern int tsid_to_utc_offset(unsigned short tsid, int p_offset, char p_dst);
43	/* defined in bscreen_dolby.c */
44	extern void bapp_user_freq_table_get(bapp_t p_app, unsigned int freq_table[], unsigned int *num_freq);
45
46	#define CHECK_PROGRAM
47	#ifdef CHECK_PROGRAM
48	int chm_check_program(chm_mgr_t *p_chm);
49	#endif
50
51	#ifndef TS_PSI_DT_ISO639Language
52	#define TS_PSI_DT_ISO639Language 0x0A
53	#endif
54
55	#ifndef isalpha
56	#define isalpha(c) (((c) >= 'A' && (c) <= 'Z') \|\| ((c) >= 'a' && (c) <= 'z'))
57	#define isdigit(c) ((c) >= '0' && (c) <= '9')
58	#endif
59
60	#ifdef FOR_DOLBY_CERTIFICATION
61	#include "bchp_hifidac_ctrl0.h"
62	#include "projinc.h"
63	#endif
64
65	#include "ram_header.h"
66
67	BDBG_MODULE(chan_mgr); /* Register software module with debug interface */
68
69	#ifdef BCM_DEBUG
70	static const char *s_chm_cmd_name[] = {
71	"eCHM_CANCEL",
72	"eCHM_TUNE",
73	"eCHM_INFO",
74	"eCHM_STOP",
75	"eCHM_CHECK_SIGNAL",
76	"eCHM_HUNT",
77	"eCHM_GUIDE",
78	"eCHM_SAP"
79	};
80
81	static const char *s_chm_state[] = {
82	"eCHM_GET_STT",
83	"eCHM_GET_VCT",
84	"eCHM_GET_MGT",
85	"eCHM_PROCESS_MGT",
86	"eCHM_PROG_IDLE"
87	};
88
89	#endif
90
91	#define CURR_CH 0
92	#define NEXT_CH 1
93	#define PREV_CH 2
94
95	#define CHM_INT_STK_SIZE 1024 /* in words */
96
97	#define CHM_CHECK_SIGNAL_FREQ 1000
98	#define CHM_CHECK_CHMAP_FREQ 5000
99	#define CHM_CHECK_PROG_FREQ 1000
100
101	#define VCT_BUF_LEN (1024 + 188)
102	#define EIT_BUF_LEN (4400 + 188)
103	#define ETT_BUF_LEN (4400 + 188)
104	#define MGT_BUF_LEN (4400 + 188)
105
106	#define VCT_TIMEOUT 1200 /* current 1200, should be 400 ms */
107	#define MSC_TIMEOUT 800
108	#define MGT_TIMEOUT 500
109	#define VCT_ETT_TIMEOUT 1200
110	#define ETT_TIMEOUT 1500
111	#define EIT_TIMEOUT 2000
112	#define CHM_CHECK_SNR_INTERVAL 500
113
114	#define RRT_TIMEOUT 5000 /* in milliseconds */
115	#define CHM_MUTEX_TIMEOUT 10
116	#define MAX_TIME_SLOTS 4
117	#define MGT_CYCLE_TIMEOUT 1 /* in seconds */
118	#define RRT_CYCLE_TIME (20) /* in seconds */
119
120	#define CHM_MIN(x,y) ((x < y) ? x : y)
121
122	#define PAT_BUF_LEN (1024 + 188)
123	#define CAT_BUF_LEN (1024 + 188)
124	#define PMT_BUF_LEN (1024 + 188)
125	#define STT_BUF_LEN (256 + 188)
126	#define EAS_BUF_LEN (1024 + 188)
127	#define EMM_BUF_LEN (1024 + 188)
128	#define CVT_BUF_LEN (1024 + 188)
129
130	#define CHM_IDLE_TIMEOUT 30
131
132	#define CAT_TIMEOUT 3000
133	#define PAT_TIMEOUT 800
134	#define PMT_TIMEOUT 800
135	#define STT_TIMEOUT 1200
136	#define EAS_TIMEOUT 1200
137
138	#define SCTE_18_ALERT_PRIORITY 0 /* all priority */
139	#define EAS_INFINITY 157680000 /* About 5 years in seconds, which is "infinity" for EAS purposes */
140
141	/* frequency vector is encoded in 0.25MHz increments */
142	#define CHM_VECTOR_MULTIPLIER (25 * 10000)
143
144	#ifndef toupper
145	#define toupper(x) (x&0xDF)
146	#endif
147
148	typedef struct iso_lang_map_t
149	{
150	char iso_lang_code[3];
151	bapp_lang_t lang;
152	}iso_lang_map_t;
153
154	typedef enum chm_err_t
155	{
156	eCHM_ERR_OK = 0,
157	eCHM_ERR_FAILED = -1,
158	eCHM_ERR_TIMEOUT = -2,
159	eCHM_ERR_CANCELED = -3,
160	eCHM_ERR_NO_PAT = -4,
161	eCHM_ERR_PARAMS = -5
162	}chm_err_t;
163
164	#ifndef ACB612
165	const char g_tz_map[] = { 0, 5, 6, 7, 8, 0};
166	#else
167	/* note that now we don't support auto zone for Mexico NTIA platform */
168	const char g_tz_map[] = { 6, 7, 8, 0 };
169	#endif
170
171	const static iso_lang_map_t s_iso_lang_map[] =
172	{
173	{ { 'e','n','g'},eLANG_ENGLISH},
174	#ifndef ACB612
175	{ { 'f','r','a'},eLANG_FRENCH},
176	{ { 'f','r','e'},eLANG_FRENCH},
177	#endif
178	{ { 'e','s','l'},eLANG_SPANISH},
179	{ { 's','p','a'},eLANG_SPANISH},
180	};
181	const static int s_iso_lang_map_num = sizeof(s_iso_lang_map)/sizeof(iso_lang_map_t);
182
183	/* These files are in flash_install_<platform>.c and are assumed to be RAM only and
184	* are therefore not access through dispatch table.
185	*/
186	extern void flash_install(uint32_t base, uint32_t offset, uint8_t * data, size_t len);
187	extern void chip_reset(void);
188
189	static int chm_post_app_event(chm_mgr_t p_chm, / Channel manager reference */
190	chm_event_t p_event / Event to post to app queue */
191	);
192	static int chm_stop_decode(chm_mgr_t *p_chm);
193	static int chm_tune_freq(chm_mgr_t *p_chm, unsigned int freq_hz);
194	static int chm_rotate_audio(chm_mgr_t *p_chm);
195	static int chm_stt_start(chm_mgr_t *p_chm, unsigned short network_pid);
196	static void chm_stt_stop(chm_mgr_t *p_chm);
197	static int chm_rrt_start(chm_mgr_t *p_chm, unsigned short network_pid);
198	static void chm_rrt_stop(chm_mgr_t *p_chm);
199	static int chm_prog_idle(chm_mgr_t *p_chm);
200	static void chm_post_progress(chm_mgr_t *p_chm, int cnt);
201
202	bresult chm_write_software(struct image_t * image);
203
204	static bool chm_check_sc(chm_mgr_t *p_chm, bband_t band, unsigned short pid);
205	static void chm_stop_stream(chm_mgr_t p_chm, chm_stream_t p_stream);
206
207	#ifndef NO_VCHIP
208	static int chm_psip_block(bapp_t p_app, unsigned char region,unsigned char dim,unsigned char val, char rating_str);
209	#endif
210	static int chm_get_utctime(chm_mgr_t p_chm, unsigned int time);
211
212	static int chm_get_guide(chm_mgr_t *p_chm);
213
214	#ifdef ACB612
215
216	#if 0
217	#define FACTORY_CHN_NUMBER 3
218	unsigned int F_chaSet[FACTORY_CHN_NUMBER] = {2,13,51};
219	#else
220	#define FACTORY_CHN_NUMBER 2
221	unsigned int F_chaSet[FACTORY_CHN_NUMBER] = {4,48};
222	#endif
223	bool isScanStatusFinish = false;
224	#endif
225
226	/* we should add this function in either ministd.c or include the libc.c which has the function */
227	char strchr(const char s, int c)
228	{
229	int len = strlen(s), i;
230	char p = (char )s;
231
232	for (i = 0; i < len; i++, p++) {
233	if (c == *p)
234	return p;
235	}
236	return NULL;
237	}
238	/*
239	Summary:
240	go through all the dimensions to find out if the given rating from CAD is existed in thre downloadable
241	RRT table or not
242
243	Returnes:
244	true if existed
245	false if not
246	*/
247	bool is_rating_supported(unsigned char prrt, unsigned char p, int size)
248	{
249	PSIP_RRT_header header;
250	PSIP_RRT_dimension dimension;
251	PSIP_RRT_value value;
252	int i, j, k;
253	/RLQ, TODO we may need to increase the stack size for chm task /
254	char string[2048];
255	int stringSize = sizeof(string);
256
257	PSIP_RRT_getHeader(prrt, &header);
258	for(i=0; PSIP_RRT_getDimension(prrt, i, &dimension)==BERR_SUCCESS; i++)
259	{
260	if (dimension.values_defined)
261	{
262	for(j=0; PSIP_RRT_getValue(prrt, i, j, &value)==BERR_SUCCESS; j++)
263	{
264	//if (value.abbrev_rating_value_text_len > 8) {
265	for(k=0; PSIP_MSS_getString(value.p_abbrev_rating_value_text, k, &stringSize, string)==BERR_SUCCESS; stringSize = sizeof(string), k++ )
266	{
267	if (stringSize == size && 0 == memcmp(p, string, size))
268	return true;
269	}
270	//}
271	}
272	}
273	}
274
275	return false;
276	}
277
278	/*
279	Summary:
280	find each rating value from given CAD rating and check them against current downloadable RRT
281	to see if they are in the table or no
282
283	a ponter with rating string that are supported (after filtering out unsupported ones)
284	and the *size will contains the length of the string returend
285	NULL if not
286	*/
287	unsigned char cad_rating_filter(unsigned char prrt, unsigned char rating_str, int size)
288	{
289	static char buf[64];
290	char *p;
291	int i = 0, j, valid = 0;
292
293	if (rating_str) {
294	memset(&buf, 0, sizeof(buf));
295	p = rating_str;
296	while (*size) {
297	j = 0;
298	/* skip white space if any */
299	while (0x20 == ((p + j)) && (j < size)) {
300	p++;
301	*size -= 1;
302	}
303	/* check letter */
304	while (isalpha((p + j)) && (j < size)) {
305	j++;
306	}
307	/* check number */
308	while (isdigit((p + j)) && (j < size)) {
309	j++;
310	}
311	if (is_rating_supported(prrt, p, j)) {
312	for (i = 0; i < j; i++) {
313	buf[valid++] = *p++;
314	}
315	}
316	else {
317	p += j;
318	}
319	*size -= j;
320	}
321	}
322
323	if (valid) {
324	*size = valid;
325	return buf;
326	}
327	else
328	return NULL;
329	}
330
331	//#define DBG_DUMP
332	#ifdef DBG_DUMP
333	static void DBG_HEXDUMP(unsigned char* ptr, unsigned long len)
334	{
335	unsigned long i;
336	for (i=0; i<len; i++ )
337	{
338	if ( i % 16 == 0 )
339	printf ("\n");
340	printf ("0x%02x, ", ptr[i]);
341	}
342	printf("\n\n");
343	}
344	#else
345	#define DBG_HEXDUMP(ptr, len)
346	#endif
347
348
349	/*
350	Summary:
351	check given major, minor and source_id for matching
352	*/
353	static int chm_find_match_channel(chm_mgr_t *p_chm, uint16_t major, uint16_t minor, uint16_t source_id)
354	{
355	bapp_t p_app = (bapp_t)p_chm->p_app;
356	bapp_ch_t *pch;
357	int i;
358
359	for (i = 0; i < p_app->settings.num_channels; i++) {
360	pch = &p_app->settings.ch[i];
361	if ((pch->major == major) && (pch->minor == minor) && (pch->source_id == source_id))
362	return i;
363	}
364	return -1;
365	}
366
367	/*
368	Summary:
369	check audio pid
370	*/
371	uint16_t chm_check_audio(chm_mgr_t p_chm, bapp_ch_t pch)
372	{
373	uint16_t apid, i;
374
375	apid = pch->audio_pid[pch->cur_audio];
376
377	if (0 == apid && pch->num_audio) {
378	for (i = 0; i < MAX_AUDIO_PIDS; i++) {
379	pch->cur_audio++;
380	pch->cur_audio %= MAX_AUDIO_PIDS;
381	apid = pch->audio_pid[pch->cur_audio];
382	if (apid)
383	break;
384	}
385	}
386	return apid;
387	}
388
389	/*
390	Summary:
391	Set next channel information.
392	*/
393	bool chm_ch_set_next(chm_mgr_t p_chm, bapp_ch_t *pch)
394	{
395	bapp_t p_app = (bapp_t)p_chm->p_app;
396	int idx = 0;
397
398	idx = p_app->cur_ch_num + 1;
399	if ((idx % p_app->settings.num_channels) != p_app->cur_ch_num) {
400	*pch = &p_app->settings.ch[idx];
401	return true;
402	}
403	else
404	*pch = &p_app->settings.ch[p_app->cur_ch_num];
405
406	return false;
407	}
408
409	/*
410	Summary:
411	Set next channel information.
412	*/
413	bool chm_ch_set_prev(chm_mgr_t p_chm, bapp_ch_t *pch)
414	{
415	bapp_t p_app = (bapp_t)p_chm->p_app;
416	int idx = 0;
417
418	idx = p_app->cur_ch_num - 1;
419	if (idx < 0) {
420	idx = p_app->settings.num_channels - 1;
421	}
422	if (idx != p_app->cur_ch_num) {
423	*pch = &p_app->settings.ch[idx];
424	return true;
425	}
426	else
427	*pch = &p_app->settings.ch[p_app->cur_ch_num];
428	return false;
429	}
430
431	/*
432	Summary:
433	Get section crc.
434	*/
435	static inline unsigned int chm_section_crc(unsigned char *buf,size_t length)
436	{
437	unsigned int crc32;
438	memcpy(&crc32, &(buf[length-4]),4);
439	return crc32;
440	}
441
442	/*
443	Summary:
444	Clear the current channel info.
445	*/
446	static void chm_make_current(chm_mgr_t p_chm, chm_info_t p_info)
447	{
448	/* Clear current info */
449	if (bos_acquire_mutex(&p_chm->mutex,CHM_MUTEX_TIMEOUT) == b_ok) {
450	memcpy(&p_chm->cur_info,p_info,sizeof(chm_info_t));
451	bos_release_mutex(&p_chm->mutex);
452	}
453	}
454
455	/*
456	Summary:
457	Clear the current channel info.
458	*/
459	int chm_clear_current(chm_mgr_t *p_chm)
460	{
461	bapp_t p_app = (bapp_t)p_chm->p_app;
462
463	/* Clear current info */
464	if (bos_acquire_mutex(&p_chm->mutex,CHM_MUTEX_TIMEOUT) == b_ok) {
465	memset(&p_chm->cur_info,0,sizeof(chm_info_t));
466	p_app->prog_rating_str[0] = 0;
467	p_app->psip_rating_str[0] = 0;
468	BDBG_WRN(("%s reset rating string @ %d\n",__func__,__LINE__));
469	p_app->tv_rating = 0;
470	/* do we need to clear STT? */
471	//p_chm->got_stt = false;
472	bos_release_mutex(&p_chm->mutex);
473	}
474	return 0;
475	}
476
477	/*
478	Summary:
479	Add a chanell to the channel map.
480	Description:
481	Add the channel to the channel map in sorted order.
482	*/
483	static void chm_add_vsb_channel(
484	chm_mgr_t p_chm, / Channel manager reference */
485	bapp_ch_t *p_ch
486	)
487	{
488	bapp_t p_app = (bapp_t)p_chm->p_app;
489	int idx,idx2;
490	bool found_slot = false;
491
492	if (p_app->settings.num_channels >= (MAX_CHANNELS - 1)) {
493	BDBG_ERR(("%s: maximum channel allowed %d reached, can't add more", __func__, MAX_CHANNELS));
494	return;
495	}
496
497	for (idx = 0; idx < p_app->settings.num_channels; idx++)
498	{
499	if ((p_ch->major < p_app->settings.ch[idx].major) \|\|
500	((p_ch->major == p_app->settings.ch[idx].major) && (p_ch->minor < p_app->settings.ch[idx].minor)))
501	{
502	#if 0
503	if ((p_ch->major == p_app->settings.ch[idx].major) &&
504	(p_ch->minor < p_app->settings.ch[idx].minor)) {
505	if (p_ch->minor == p_app->settings.ch[idx].minor) {
506	/* found duplicate, drop it */
507	BDBG_WRN(("Found duplicate channel, drop it (%d.%d)", p_ch->major, p_ch->minor));
508	return;
509	}
510	}
511	#endif
512	for (idx2 = p_app->settings.num_channels - 1; idx2 >= idx; idx2--)
513	{
514	memcpy(&p_app->settings.ch[idx2 + 1],&p_app->settings.ch[idx2], sizeof(bapp_ch_t));
515	}
516	memcpy(&p_app->settings.ch[idx],p_ch, sizeof(bapp_ch_t));
517	found_slot = 1;
518	break;
519	}
520	}
521
522	if (!found_slot)
523	{
524	memcpy(&p_app->settings.ch[p_app->settings.num_channels],p_ch, sizeof(bapp_ch_t));
525	}
526	p_app->settings.num_channels++;
527	}
528
529	/*
530	Summary:
531	Get the current utc time in seconds.
532	Return non-zero on failure.
533	*/
534
535	static void chm_send_status(chm_mgr_t *p_chm,unsigned int freq, bool locked)
536	{
537	bapp_t p_app = (bapp_t)p_chm->p_app;
538	chm_signal_event_t *p_sig = &(p_chm->signal_evt);
539	memset(&(p_chm->signal_evt),0,sizeof(chm_signal_event_t));
540	p_sig->type = eCHM_EVT_SIGNAL;
541	if (locked) {
542	if (btuner_get_status(p_chm->tuner,&p_app->tuner_status) == b_ok)
543	{
544	/* Send message to app */
545	p_sig->freq_hz = p_app->tuner_status.freq;
546	p_sig->SNR = p_app->tuner_status.snr;
547	p_sig->power = p_app->tuner_status.power;
548	p_sig->lock = p_app->tuner_status.lock;
549	p_sig->signal_quality = p_app->tuner_status.PreRS;
550	}
551	}
552	chm_post_app_event(p_chm,(chm_event_t*)&(p_chm->signal_evt));
553	}
554
555	/*
556	Summary:
557	Check for a valid language code for the current language settings.
558	Returns the bapp_lang_t number or < 0 if not a valid language.
559	*/
560
561	static int chm_valid_lang(chm_mgr_t p_chm, / Channel manager reference */
562	char p_code / Three byte iso 639-2 language code */
563	)
564	{
565	bapp_lang_t lang = iso_639_to_lang(p_code);
566
567	if (eLANG_MAX != lang)
568	BDBG_MSG(("ISO 639-2 language supported %c%c%c\n",p_code[0],p_code[1],p_code[2]));
569	else
570	BDBG_MSG(("ISO 639-2 language not found %c%c%c\n",p_code[0],p_code[1],p_code[2]));
571	return (lang == eLANG_MAX) ? eCHM_ERR_FAILED : (int)lang;
572	}
573
574	/*
575	Summary:
576	Check for cancel, returns true if a cancel occured.
577	*/
578	#ifdef BCM_DEBUG
579	static int chm_check_cancel_ex(chm_mgr_t p_chm ,const char func, int line)
580	#define chm_check_cancel(chm) chm_check_cancel_ex(chm,__func__,__LINE__)
581	#else
582	static int chm_check_cancel(chm_mgr_t *p_chm )
583	#endif
584	{
585	chm_cmd_event_t *p_cmd;
586
587	if (p_chm->cmd == eCHM_CANCEL)
588	return 1;
589
590	p_cmd = (chm_cmd_event_t*)bos_pend_event(p_chm->queue,0);
591
592	if (!p_cmd)
593	return 0;
594
595	if (p_cmd->cmd_id == eCHM_CANCEL)
596	{
597	p_chm->cmd = eCHM_CANCEL;
598	BDBG_WRN(("Command canceled(%s:%d)...\n",func,line));
599	//RLQ, do we need this?
600	#if 0
601	/* Send message to app */
602	p_chm->chm_evt.type = eCHM_EVT_CANCEL;
603	p_chm->chm_evt.id = 0;
604	chm_post_app_event(p_chm,&p_chm->chm_evt);
605	#endif
606	} else
607	{
608	if (p_cmd->cmd_id == eCHM_SAP)
609	{
610	chm_rotate_audio(p_chm);
611	}
612	else
613	{
614	BDBG_WRN(("Throwing away command %d(%s:%d)...\n", p_chm->cmd ,func,line));
615	}
616	}
617
618	return(p_chm->cmd == eCHM_CANCEL) ? 1 : 0;
619	}
620
621
622	static void * chm_smessage_callback(void *context, size_t data_size)
623	{
624	chm_mgr_t p_chm = (chm_mgr_t )context;
625	/* ignore return value */
626	bos_post_event(p_chm->gen_queue, (b_event_t*)data_size);
627	return NULL;
628	}
629
630	static int chm_getmessage(chm_mgr_t p_chm, / Channel manager reference */
631	void buf, / buffer to copy section into */
632	unsigned int len, / [in] max size of buffer, [out] section size copied into buffer */
633	unsigned int timeout /* timeout in milliseconds */
634	)
635	{
636	bresult bres;
637	size_t msg_size;
638	int result = eCHM_ERR_FAILED;
639	smessage_stream_params_t params;
640
641	smessage_stream_params_init(&params, NULL);
642	params.band = p_chm->msg_params.band;
643	params.pid = p_chm->msg_params.pid;
644	params.filter = p_chm->msg_params.filter;
645	params.buffer = buf;
646	params.buffer_size = *len;
647	params.crc_disabled = p_chm->msg_params.crc_disabled;
648	params.data_ready_callback = chm_smessage_callback;
649	params.overflow = NULL;
650	params.callback_context = (void *)p_chm;
651	params.priv = (void *)4;
652	BDBG_MSG(("pid %x fil %x tim %u len %u", params.pid, params.filter.coef[0], timeout, *len));
653	bres = smessage_start(&params, p_chm->smsg);
654	if (b_ok != bres)
655	{
656	BDBG_ERR(("%s:%d",__FILE__, __LINE__));
657	goto ExitFunc;
658	}
659	msg_size = (size_t) bos_pend_event(p_chm->gen_queue, timeout);
660	if (0 == msg_size)
661	{
662	result = eCHM_ERR_TIMEOUT;
663	} else
664	{
665	result = eCHM_ERR_OK;
666	}
667	bres = smessage_stop(p_chm->smsg);
668	if (b_ok != bres)
669	{
670	BDBG_ERR(("%s:%d",__FILE__, __LINE__));
671	result = eCHM_ERR_FAILED;
672	goto ExitFunc;
673	}
674
675	ExitFunc:
676	return result;
677	}
678
679	/*
680	Summary:
681	Stop EAS monitoring..
682	*/
683	static void chm_eas_stop(chm_mgr_t *p_chm)
684	{
685	if (NULL != p_chm->eas_msg)
686	{
687	if (b_ok != smessage_stop(p_chm->eas_msg))
688	{
689	BDBG_ERR(("%s:%d",__FILE__, __LINE__));
690	return;
691	}
692	smessage_close(p_chm->eas_msg);
693	p_chm->eas_msg = NULL;
694	p_chm->eas_timer_started = false;
695	}
696	}
697
698	#ifdef CHECK_PROGRAM
699	/*
700	Summary:
701	Get current program PID information from PAT and PMT
702	Description:
703	Get the PAT/PMT for the program
704	Returns:
705	non-zero on failure.
706	*/
707	static int chm_get_program(
708	chm_mgr_t *p_chm,
709	bapp_ch_t *pch)
710	{
711	unsigned int section_size, pmt_section_size;
712	TS_PMT_stream pmt;
713	TS_PAT_program pat;
714	int result = 0;
715	int idx,p_idx,num_prog, i;
716	unsigned int prog_ticks, crc;
717	bsettop_av_stream_type_t *stream_type;
718
719	prog_ticks = bos_getticks();
720
721	smessage_stream_params_init(&p_chm->msg_params, NULL);
722	p_chm->msg_params.band = p_chm->band;
723	p_chm->msg_params.pid = (unsigned short)0; /* PAT */
724	section_size = PAT_BUF_LEN;
725
726	if ((result = chm_getmessage(p_chm,p_chm->pat_buf,&section_size, PAT_TIMEOUT)) != 0)
727	{
728	BDBG_WRN(("%s Error getting PAT (err=%d)",__func__, result));
729	return result;
730	}
731
732	p_chm->pat_cnt++;
733	if (TS_PAT_validate(p_chm->pat_buf, section_size) != true)
734	{
735	BDBG_MSG(("TS_PAT_validate failed\n"));
736	return eCHM_ERR_FAILED;
737	}
738
739	num_prog = TS_PAT_getNumPrograms(p_chm->pat_buf);
740	if (num_prog == 0)
741	{
742	BDBG_WRN(("%s No program?", __func__));
743	return eCHM_ERR_FAILED;
744	}
745
746	/* check to make sure the user doesn't cancel during the PAT/PMT checking process */
747	if (chm_check_cancel(p_chm))
748	{
749	return eCHM_ERR_CANCELED;
750	}
751
752	/* move it to caller function with mutex protection of program num to avoid possible race condition */
753	//memset(pch, 0, sizeof(bapp_ch_t));
754
755	/* remember PAT CRC for later comparison for changes */
756	crc = chm_section_crc(p_chm->pat_buf,section_size);
757	if (crc == p_chm->pat_crc) {
758	/* PAT doesn't change, simply return */
759	return eCHM_ERR_OK;
760	}
761	p_chm->pat_crc = crc;
762
763	BDBG_MSG(("TS_PAT_getNumPrograms %d", num_prog));
764
765	for (idx = 0; idx < num_prog; idx++)
766	{
767	if (TS_PAT_getProgram( p_chm->pat_buf, section_size, idx, &pat ) != b_ok)
768	{
769	BDBG_WRN(("TS_PAT_validate failed 0x%04x\n",idx));
770	p_chm->pat_crc = 0; /* invalide it */
771	return eCHM_ERR_FAILED;
772	}
773
774	BDBG_MSG(("TS_PAT_getProgram(%d,0x%04x)\n", pat.program_number,pat.PID));
775
776	/* Check for new network PID */
777	if (pat.program_number == 0)
778	{
779	/* we don't use network PID */
780	continue;
781	}
782
783	if (pch->program_num != pat.program_number)
784	continue;
785
786	smessage_stream_params_init(&p_chm->msg_params, NULL);
787	p_chm->msg_params.band = p_chm->band;
788	p_chm->msg_params.pid = (unsigned short)pat.PID; /* PMT */
789	p_chm->msg_params.filter.coef[0] = 0x2;
790	p_chm->msg_params.filter.mask[0] = 0x0;
791	p_chm->msg_params.filter.coef[3] = pch->program_num >> 8;
792	p_chm->msg_params.filter.mask[3] = 0x0;
793	p_chm->msg_params.filter.coef[4] = pch->program_num & 0xff;
794	p_chm->msg_params.filter.mask[4] = 0x0;
795	pmt_section_size = PMT_BUF_LEN;
796	if ((result = chm_getmessage(p_chm,p_chm->pmt_buf,&pmt_section_size, PMT_TIMEOUT)) != 0)
797	{
798	BDBG_ERR(("%s Error getting PMT 0x%04x = %d",__func__,pch->program_num, result));
799	return result;
800	}
801	p_chm->pmt_cnt++;
802	crc = chm_section_crc(p_chm->pmt_buf,pmt_section_size);
803	if (crc == p_chm->pmt_crc) {
804	/* PMT doesn't change, simply return */
805	return eCHM_ERR_OK;
806	}
807	p_chm->pmt_crc = crc;
808
809	pch->pcr_pid = TS_PMT_getPcrPid(p_chm->pmt_buf,pmt_section_size);
810
811	for (p_idx = 0; p_idx < TS_PMT_getNumStreams(p_chm->pmt_buf,pmt_section_size); p_idx++)
812	{
813	TS_PSI_descriptor psi_desc,lang_desc;
814	int strm_idx;
815	int num_aud, aidx;
816
817	if (TS_PMT_getStream( p_chm->pmt_buf, pmt_section_size, p_idx, &pmt ) != b_ok)
818	{
819	BDBG_WRN(("Failure processing PMT %d",p_idx));
820	return eCHM_ERR_FAILED;
821	}
822
823	strm_idx = 0;
824	lang_desc = NULL;
825	/* remember how many audio channels from VCT */
826	num_aud = pch->num_audio;
827	while ((psi_desc = TS_PMT_getStreamDescriptor(p_chm->pmt_buf,pmt_section_size, p_idx,strm_idx)) != NULL)
828	{
829	if (psi_desc[0] == TS_PSI_DT_ISO_639_Language) /* 0x0A ISO-639 Language descriptor */
830	{
831	BDBG_MSG(("ISO-639 DESC\n" ));
832	lang_desc = psi_desc;
833	break;
834	}
835	strm_idx++;
836	if (strm_idx > 0xFF)
837	{
838	BDBG_ERR(("PMT Stream Desc limit exceeded %d\n",strm_idx));
839	break;
840	}
841	if (chm_check_cancel(p_chm))
842	{
843	return eCHM_ERR_CANCELED;
844	}
845	}
846
847	if ((stream_type = bdecode_supported_video(pmt.stream_type)) != NULL)
848	{
849	BDBG_MSG(("Video PID[%d] = 0x%04x\n",p_idx,pmt.elementary_PID ));
850	if (!pch->video_pid \|\| (pch->video_pid != pmt.elementary_PID))
851	{
852	pch->video_pid = pmt.elementary_PID;
853	pch->video_type = stream_type->codec_id;
854	}
855	}
856	else if ((stream_type = bdecode_supported_audio(pmt.stream_type)) != NULL)
857	{
858	BDBG_MSG(("Audio PID[%d] = 0x%04x\n",p_idx,pmt.elementary_PID ));
859	if (lang_desc) {
860	/* MSS format, so point to right offset */
861	aidx = chm_valid_lang(p_chm, (char *)&lang_desc[2]);
862	if ((aidx >= 0) && (aidx < MAX_AUDIO_PIDS))
863	{
864	/* will audio PID changed in the PMT other than missing? */
865	/* for now just check missing one */
866	if (!pch->audio_pid[aidx])
867	{
868	pch->has_lang \|= 1 << aidx;
869	pch->audio_pid[aidx] = pmt.elementary_PID;
870	pch->audio_type[aidx] = stream_type->codec_id;
871	/* initialize audio selection if match */
872	#ifdef USE_LANGUAGE
873	if (aidx == p_app->settings.language)
874	pch->cur_audio = aidx;
875	#else
876	/* assume that first audio PID always has audio */
877	if (0 == pch->num_audio)
878	pch->cur_audio = aidx;
879	#endif
880	pch->num_audio++;
881	memcpy(&pch->audio_lang[aidx][0],(char *)&lang_desc[2], 3);
882	}
883	else {
884	/* handle duplicate case which should be pretty common in Mexico broadcast */
885	num_aud = aidx;
886	i = aidx;
887	do {
888	i++;
889	i %= MAX_AUDIO_PIDS;
890	if (0 == pch->audio_pid[i]) {
891	pch->has_lang \|= 1 << i;
892	pch->audio_pid[i] = pmt.elementary_PID;
893	pch->audio_type[i] = stream_type->codec_id;
894	pch->num_audio++;
895	memcpy(&pch->audio_lang[i][0],(char *)&lang_desc[2], 3);
896	break;
897	}
898	} while (i != num_aud);
899	}
900	}
901	else {
902	/* drop audio? */
903	BDBG_WRN(("Audio PID[%d] = 0x%04x dropped due to language not supported", aidx, pmt.elementary_PID ));
904	}
905	}
906	else {
907	/* no language descriptor, just put them in the order in PMT table */
908	if (num_aud < MAX_AUDIO_PIDS) {
909	i = num_aud;
910	do {
911	if (!pch->audio_pid[i]) {
912	pch->has_lang \|= 1 << i;
913	pch->audio_pid[i] = pmt.elementary_PID;
914	pch->audio_type[i] = stream_type->codec_id;
915	if (0 == pch->num_audio)
916	pch->cur_audio = i;
917	pch->num_audio++;
918	break;
919	}
920	i++;
921	i %= MAX_AUDIO_PIDS;
922	} while (i != num_aud);
923	}
924	}
925	}
926	else
927	{
928	BDBG_MSG(("Unsupported stream type[0x%02x]\n", pmt.stream_type));
929	}
930	}
931	/* we should find the match program */
932	break;
933	}
934
935	/* final check to make sure the user doesn't cancel during the PAT/PMT checking process */
936	if (chm_check_cancel(p_chm))
937	{
938	return eCHM_ERR_CANCELED;
939	}
940
941	prog_ticks = bos_getticks() - prog_ticks;
942	p_chm->status_evt.type = eCHM_EVT_STATUS;
943	p_chm->status_evt.id = eCHM_STATUS_SI_MS;
944	p_chm->status_evt.ticks = TICKS_TO_MS(prog_ticks);
945	chm_post_app_event(p_chm,&p_chm->status_evt);
946
947	/* one more check */
948	if (0 == pch->video_pid && 0 == pch->pcr_pid && 0 == pch->audio_pid[0])
949	result = eCHM_ERR_FAILED;
950
951	return result;
952	}
953	#endif
954
955	/*
956	Summary:
957	Get the program info for a given program number.
958	Description:
959	Get the PAT/PMT for the program.
960	Returns non-zero on failure.
961	*/
962	static int chm_get_program_info(chm_mgr_t p_chm, / Channel manager reference */
963	bband_t band,
964	unsigned short prog_number,
965	bapp_ch_t *p_ch
966	)
967	{
968	unsigned int section_size, pmt_section_size;
969	TS_PMT_stream pmt;
970	TS_PAT_program pat;
971	int result = 0;
972	int idx,p_idx;
973	unsigned short audio_pid[MAX_AUDIO_PIDS];
974	unsigned short audio_type[MAX_AUDIO_PIDS];
975	int num_aud = 0, num_aud_tmp = 0;
976
977	smessage_stream_params_init(&p_chm->msg_params, NULL);
978	p_chm->msg_params.band = band;
979	p_chm->msg_params.pid = (unsigned short)0; /* PAT */
980	/* All PSIP tables have protocol_version which must be = 0 */
981	//p_chm->msg_params.filter.coef[8] = 0x00; /* protocol_version */
982	//p_chm->msg_params.filter.mask[8] = 0x00;
983	section_size = PAT_BUF_LEN;
984
985	if ((result = chm_getmessage(p_chm,p_chm->pat_buf,&section_size, PAT_TIMEOUT)) != 0)
986	{
987	BDBG_WRN(("Error getting PAT 0x%04x = %d\n",prog_number, result));
988	return result;
989	}
990
991	if (TS_PAT_validate(p_chm->pat_buf, section_size) != true)
992	{
993	BDBG_WRN(("TS_PAT_validate failed 0x%04x\n",prog_number));
994	return eCHM_ERR_FAILED;
995	}
996
997	for (idx = 0; idx < TS_PAT_getNumPrograms(p_chm->pat_buf); idx++)
998	{
999	if (TS_PAT_getProgram( p_chm->pat_buf, section_size, idx, &pat ) != b_ok)
1000	{
1001	BDBG_WRN(("TS_PAT_validate failed 0x%04x\n",prog_number));
1002	return eCHM_ERR_FAILED;
1003	}
1004
1005	/* network, skip it */
1006	if (pat.program_number != prog_number)
1007	continue;
1008
1009	smessage_stream_params_init(&p_chm->msg_params, NULL);
1010	p_chm->msg_params.band = band;
1011	p_chm->msg_params.pid = (unsigned short)pat.PID; /* PMT */
1012	p_chm->msg_params.filter.coef[0] = 0x2;
1013	p_chm->msg_params.filter.mask[0] = 0x00;
1014	//p_chm->msg_params.filter.excl[0] = 0xff;
1015	/* All PSIP tables have protocol_version which must be = 0 */
1016	//p_chm->msg_params.filter.coef[8] = 0x00; /* protocol_version */
1017	//p_chm->msg_params.filter.mask[8] = 0x00;
1018	pmt_section_size = PMT_BUF_LEN;
1019	if ((result = chm_getmessage(p_chm,p_chm->pmt_buf,&pmt_section_size, PMT_TIMEOUT)) != 0)
1020	{
1021	BDBG_ERR(("Error getting PAT 0x%04x\n",prog_number));
1022	return result;
1023	}
1024
1025	p_ch->pcr_pid = TS_PMT_getPcrPid(p_chm->pmt_buf,pmt_section_size);
1026
1027	for (p_idx = 0; p_idx < TS_PMT_getNumStreams(p_chm->pmt_buf,pmt_section_size); p_idx++)
1028	{
1029	TS_PSI_descriptor psi_desc,lang_desc;
1030	bsettop_av_stream_type_t *stream_type;
1031	int strm_idx, aidx = 0;
1032	if (TS_PMT_getStream( p_chm->pmt_buf, pmt_section_size, p_idx, &pmt ) != b_ok)
1033	{
1034	BDBG_WRN(("Failure processing PMT %d\n",p_idx));
1035	return eCHM_ERR_FAILED;
1036	}
1037
1038	strm_idx = 0;
1039	lang_desc = NULL;
1040	num_aud = 0;
1041	num_aud_tmp = 0;
1042	p_ch->has_lang = 0;
1043	while ((psi_desc = TS_PMT_getStreamDescriptor(p_chm->pmt_buf,pmt_section_size, p_idx,strm_idx)) != NULL)
1044	{
1045	if (psi_desc[0] == TS_PSI_DT_ISO639Language) /* 0x0A ISO-639 Language descriptor */
1046	{
1047	BDBG_WRN(("ISO-639 DESC\n" ));
1048	lang_desc = psi_desc;
1049	break;
1050	}
1051	strm_idx++;
1052	if (strm_idx > 0xFF)
1053	{
1054	BDBG_ERR(("PMT Stream Desc limit exceeded %d\n",strm_idx));
1055	break;
1056	}
1057	if (chm_check_cancel(p_chm))
1058	{
1059	return eCHM_ERR_CANCELED;
1060	}
1061	}
1062
1063	if ((stream_type = bdecode_supported_video(pmt.stream_type)) != NULL)
1064	{
1065	BDBG_WRN(("Video PID[%d] = 0x%04x\n",p_idx,pmt.elementary_PID ));
1066	if (!p_ch->video_pid)
1067	{
1068	p_ch->video_pid = pmt.elementary_PID;
1069	p_ch->video_type = stream_type->codec_id;
1070	}
1071	} else if ((stream_type = bdecode_supported_audio(pmt.stream_type)) != NULL)
1072	{
1073	BDBG_MSG(("Audio PID[%d] = 0x%04x\n",p_idx,pmt.elementary_PID ));
1074	if (lang_desc) {
1075	aidx = chm_valid_lang(p_chm, (char *)&lang_desc[2]);
1076	if ((aidx >= 0) && (aidx < MAX_AUDIO_PIDS))
1077	{
1078	if (!p_ch->audio_pid[aidx])
1079	{
1080	p_ch->has_lang \|= 1 < aidx;
1081	p_ch->audio_pid[aidx] = pmt.elementary_PID;
1082	p_ch->audio_type[aidx] = stream_type->codec_id;
1083	#ifdef USE_LANGUAGE
1084	if (aidx == p_app->settings.language)
1085	pch->cur_audio = aidx;
1086	#else
1087	/* assume that first audio PID always has audio */
1088	if (0 == num_aud)
1089	p_ch->cur_audio = aidx;
1090	#endif
1091	num_aud++;
1092	}
1093	}
1094	else {
1095	/* remember it first */
1096	if ((num_aud_tmp < MAX_AUDIO_PIDS) && !audio_pid[num_aud_tmp]) {
1097	audio_pid[num_aud_tmp] = pmt.elementary_PID;
1098	audio_type[num_aud_tmp] = stream_type->codec_id;
1099	num_aud_tmp++;
1100	}
1101	}
1102	}
1103	else {
1104	if ((num_aud < MAX_AUDIO_PIDS) && !p_ch->audio_pid[num_aud]) {
1105	p_ch->audio_pid[num_aud] = pmt.elementary_PID;
1106	p_ch->audio_type[num_aud] = pmt.stream_type;
1107	if (0 == p_ch->num_audio)
1108	p_ch->cur_audio = aidx;
1109	num_aud++;
1110	}
1111	}
1112	}
1113	}
1114	if (0 == num_aud && num_aud_tmp) {
1115	for (idx = 0; idx < num_aud_tmp; idx++) {
1116	p_ch->has_lang \|= 1 < idx;
1117	p_ch->audio_pid[idx] = audio_pid[idx];
1118	p_ch->audio_type[idx] = audio_type[idx];
1119	}
1120	p_ch->num_audio = num_aud_tmp;
1121	p_ch->cur_audio = 0;
1122	}
1123	break;
1124	}
1125	return result;
1126	}
1127
1128	/*
1129	Summary:
1130	Scan for channels using VCT for given time, and if no VCT, then will using PSI scan instead
1131	Description:
1132	Scan for channels using VCT.
1133	Returns:
1134	number of channels added.
1135	*/
1136	static int chm_scan_vct(
1137	chm_mgr_t p_chm, / Channel manager reference */
1138	bband_t band,
1139	int freq_idx)
1140	{
1141	unsigned int section_size;
1142	int minor_idx, channels;
1143	bool got_vct;
1144	unsigned char section_number;
1145	int result = 0; /* we just track 3 audio channels currently */
1146	bapp_ch_t ch;
1147	bapp_t p_app = (bapp_t)p_chm->p_app;
1148	PSIP_VCT_channel vct;
1149	unsigned int timeout;
1150	bool have_program;
1151
1152	timeout = bos_getticks() + MS_TO_TICKS(15 * VCT_TIMEOUT);
1153	memset(&vct,0,sizeof(vct));
1154
1155	/* Get the VCT */
1156	section_number = 0;
1157	do
1158	{
1159	smessage_stream_params_init(&p_chm->msg_params, NULL);
1160	p_chm->msg_params.band = band;
1161	p_chm->msg_params.pid = 0x1ffb; /* VCT */
1162
1163	p_chm->msg_params.filter.coef[0] = 0xc8; /* Table ID for terrestrial */
1164	p_chm->msg_params.filter.mask[0] = 0x00;
1165	p_chm->msg_params.filter.coef[6] = section_number; /* section number */
1166	p_chm->msg_params.filter.mask[6] = 0x00;
1167	/* All PSIP tables have protocol_version which must be = 0 */
1168	p_chm->msg_params.filter.coef[8] = 0x00; /* protocol_version */
1169	p_chm->msg_params.filter.mask[8] = 0x00;
1170
1171	got_vct = false;
1172	memset(&p_chm->prev_vct, 0, sizeof(p_chm->prev_vct));
1173	do
1174	{
1175	section_size = VCT_BUF_LEN;
1176	if (chm_getmessage(p_chm,p_chm->vct_buf,&section_size, VCT_TIMEOUT) != 0)
1177	{
1178	/* timeout, clear section size in case there is no vct in the stream at all */
1179	p_chm->vct_buf[7] = 0;
1180	BDBG_WRN(("Timeout waiting for VCT, section_number=%d", section_number));
1181	if (!p_chm->not_check_cancel && chm_check_cancel(p_chm))
1182	{
1183	return eCHM_ERR_CANCELED;
1184	}
1185	if (timeout > bos_getticks()) {
1186	p_chm->msg_params.crc_disabled = true;
1187	continue;
1188	}
1189	else {
1190	break;
1191	}
1192	}
1193
1194	channels = PSIP_VCT_getNumChannels(p_chm->vct_buf);
1195	if (0 == channels)
1196	{
1197	BDBG_WRN(("No VCT Found!"));
1198	break;
1199	}
1200
1201	BDBG_MSG(("PSIP_VCT_getNumChannels %d fount!", channels));
1202
1203	for (minor_idx = 0; minor_idx < channels; ++minor_idx)
1204	{
1205	int desc_idx;
1206	TS_PSI_descriptor psi_desc;
1207	have_program = false;
1208	bsettop_av_stream_type_t *stream_type;
1209
1210	if (PSIP_VCT_getChannel( (const uint8_t *)p_chm->vct_buf, minor_idx, &vct ) == BERR_SUCCESS)
1211	{
1212	/* if hidden or analog, skip it */
1213	if ((vct.hidden) \|\| (vct.minor_channel_number == 0) \|\| (vct.service_type!=2 && vct.service_type!=3))
1214	{
1215	/* RLQ, TODO, we can set hidden in ch stucture instead of skip it */
1216	BDBG_MSG(("Channel hidden or analog channel %d, %d",vct.hidden,vct.minor_channel_number));
1217	/* got vct, but hidden or analog, need to skip do loop if reach end of VCT */
1218	if ((minor_idx + 1) >= channels) {
1219	got_vct = true;
1220	break;
1221	}
1222	else
1223	continue;
1224	}
1225	/* note the vct can't duplicate in same station, but can if it is different station with different frequency */
1226	if (0 == memcmp((void )&vct, (void )&p_chm->prev_vct, sizeof(vct))){
1227	BDBG_WRN(("Duplicate VCT entry (%d.%d), discard",vct.major_channel_number, vct.minor_channel_number));
1228	continue;
1229	}
1230	/* remember it for next comparison */
1231	p_chm->prev_vct = vct;
1232
1233	got_vct = true;
1234	memset(&ch,0,sizeof(ch));
1235	ch.freq_idx = freq_idx;
1236	/* remember the frequency to use it directly instead using the frequency index */
1237	ch.major = vct.major_channel_number;
1238	ch.minor = vct.minor_channel_number;
1239	ch.psi = false;
1240	ch.source_id = vct.source_id;
1241	memcpy(ch.ch_name, vct.short_name, sizeof(ch.ch_name));
1242	/* need to remember program number so that we can check the program number for PAT/PMT checking */
1243	ch.program_num = vct.program_number;
1244
1245	desc_idx = 0;
1246	while ((psi_desc = PSIP_VCT_getChannelDescriptor(p_chm->vct_buf, minor_idx,desc_idx)) != NULL)
1247	{
1248	if (psi_desc[0] == 0xA1) /* Service location descriptor */
1249	{
1250	PSIP_SLD_header sld_header;
1251	PSIP_SLD_element sld_elem;
1252	int sld_idx,lidx;
1253
1254	PSIP_SLD_getHeader(psi_desc,&sld_header);
1255	have_program = true;
1256
1257	ch.pcr_pid = sld_header.PCR_PID;
1258	ch.has_lang = 0;
1259	ch.num_audio = 0;
1260	BDBG_MSG(("SLD number_elements = %d\n",sld_header.number_elements ));
1261
1262	for (sld_idx = 0; sld_idx < sld_header.number_elements; ++sld_idx)
1263	{
1264	if (PSIP_SLD_getElement(psi_desc,sld_idx,&sld_elem) != BERR_SUCCESS)
1265	{
1266	BDBG_WRN(("Error processing SLD Desc %d of %d",sld_idx,sld_header.number_elements));
1267	break;
1268	}
1269	if ((stream_type = bdecode_supported_video(sld_elem.stream_type)) != NULL)
1270	{
1271	BDBG_WRN(("Video PID[%d] = 0x%04x\n",sld_idx,sld_elem.elementary_PID ));
1272	if (!ch.video_pid)
1273	{
1274	ch.video_pid = sld_elem.elementary_PID;
1275	ch.video_type = stream_type->codec_id;
1276	}
1277	} else
1278	{
1279	if ((stream_type = bdecode_supported_audio(sld_elem.stream_type)) != NULL)
1280	{
1281	BDBG_MSG(("Audio PID[%d] = 0x%04x, lang => %c%c%c\n",sld_idx,sld_elem.elementary_PID,
1282	sld_elem.ISO_639_language_code[0],sld_elem.ISO_639_language_code[1],sld_elem.ISO_639_language_code[2] ));
1283	if ((lidx = chm_valid_lang(p_chm,sld_elem.ISO_639_language_code)) >= 0 )
1284	{
1285
1286	if ((lidx >= 0) && (lidx < MAX_AUDIO_PIDS) && (ch.num_audio < MAX_AUDIO_PIDS)) {
1287	if (ch.audio_pid[lidx] != 0)
1288	{
1289	int i = lidx, j = lidx;
1290	BDBG_WRN(("Duplicate language Audio PID[%d] = 0x%04x, lang => %c%c%c\n",sld_idx,sld_elem.elementary_PID,
1291	sld_elem.ISO_639_language_code[0],sld_elem.ISO_639_language_code[1],sld_elem.ISO_639_language_code[2] ));
1292	/* we need to handle it as it happens often in Mexico broadcast */
1293	do {
1294	i++;
1295	i %= MAX_AUDIO_PIDS;
1296	if (0 == ch.audio_pid[i]) {
1297	ch.audio_pid[i] = sld_elem.elementary_PID;
1298	ch.audio_type[i] = stream_type->codec_id;
1299	ch.has_lang \|= 1 << i;
1300	if (0 == ch.num_audio)
1301	ch.cur_audio = i;
1302	ch.num_audio++;
1303	ch.audio_lang[i][0] = toupper(sld_elem.ISO_639_language_code[0]);
1304	ch.audio_lang[i][1] = toupper(sld_elem.ISO_639_language_code[1]);
1305	ch.audio_lang[i][2] = toupper(sld_elem.ISO_639_language_code[2]);
1306	break;
1307	}
1308	} while (i != j);
1309	} else
1310	{
1311	ch.audio_pid[lidx] = sld_elem.elementary_PID;
1312	ch.audio_type[lidx] = stream_type->codec_id;
1313	ch.has_lang \|= 1 << lidx;
1314	#ifdef USE_LANGUAGE
1315	/* initialize audio selection if match in scan time */
1316	if (lidx == p_app->settings.language)
1317	ch.cur_audio = lidx;
1318	#else
1319	/* assume that first audio PID always has audio */
1320	if (0 == ch.num_audio)
1321	ch.cur_audio = lidx;
1322	#endif
1323	ch.num_audio++;
1324	}
1325	}
1326	} else
1327	{
1328	BDBG_WRN(("Throwing out Audio PID[%d] = 0x%04x, lang => %c%c%c\n",sld_idx,sld_elem.elementary_PID,
1329	sld_elem.ISO_639_language_code[0],sld_elem.ISO_639_language_code[1],sld_elem.ISO_639_language_code[2] ));
1330	}
1331	}
1332	}
1333	}
1334
1335	/* Backup plan if there is no valid language code */
1336	if (0 == ch.num_audio)
1337	{
1338	BDBG_WRN(("No valid audio PID found for languages in audio descs...\n"));
1339	for (sld_idx = 0; sld_idx < sld_header.number_elements && (ch.num_audio < MAX_AUDIO_PIDS); ++sld_idx)
1340	{
1341	if (PSIP_SLD_getElement(psi_desc,sld_idx,&sld_elem) != BERR_SUCCESS)
1342	{
1343	BDBG_WRN(("Error processing SLD Desc %d of %d",sld_idx,sld_header.number_elements));
1344	break;
1345	}
1346	if ((stream_type = bdecode_supported_audio(sld_elem.stream_type)) != NULL)
1347	{
1348	if (ch.num_audio < MAX_AUDIO_PIDS) {
1349	BDBG_WRN(("Audio PID[%d] = 0x%04x\n",sld_idx,sld_elem.elementary_PID));
1350	ch.audio_pid[ch.num_audio] = sld_elem.elementary_PID;
1351	ch.audio_type[ch.num_audio] = stream_type->codec_id;
1352	if (0 == ch.num_audio)
1353	ch.cur_audio = 0;
1354	ch.num_audio++;
1355	}
1356	}
1357	}
1358	}
1359	}
1360	desc_idx++;
1361	if (desc_idx > 0xFF)
1362	{
1363	BDBG_ERR(("VCT Channel Desc limit exceeded %d\n",desc_idx));
1364	break;
1365	}
1366	if (!p_chm->not_check_cancel && chm_check_cancel(p_chm))
1367	{
1368	return eCHM_ERR_CANCELED;
1369	}
1370	}
1371	if (!have_program)
1372	{
1373	BDBG_WRN(("Don't have program, look for PAT/PMT instead "));
1374	if (chm_get_program_info(p_chm,band,vct.program_number,&ch) == 0)
1375	{
1376	if ((0 == ch.video_pid) && (0 == ch.num_audio)) {
1377	/* data program, skip it */
1378	}
1379	else {
1380	BDBG_MSG(("program video 0x%04x, audio 0x%04x, PCR 0x%04x",ch.video_pid,ch.audio_pid,ch.pcr_pid));
1381	have_program = true;
1382	}
1383	}
1384	}
1385
1386	if (p_chm->local_time_source == eTS_NONE)
1387	{
1388	p_chm->local_time_source = eTS_FIXED;
1389	p_chm->local_offset = 0 - (int)g_tz_map[p_app->settings.time_zone];
1390	p_chm->local_offset *= 3600;
1391	p_chm->local_dst_obs = p_app->settings.dst;
1392	BDBG_WRN(("### Local time %d Fixed ###\n",p_chm->local_offset));
1393	}
1394
1395	if (have_program)
1396	{
1397	ch.frequency_khz = p_chm->freq_table[p_chm->select_idx];
1398	chm_add_vsb_channel(p_chm,&ch);
1399	result += 1;
1400
1401	p_chm->chm_pat_evt.type = eCHM_EVT_STATUS;
1402	p_chm->chm_pat_evt.id = eCHM_STATUS_PAT;
1403	p_chm->chm_pat_evt.ticks = (unsigned int)(((p_chm->select_idx)*100)/p_chm->num_freq);
1404	chm_post_app_event(p_chm,&p_chm->chm_pat_evt);
1405
1406	if (p_app->screen_id == eSCREEN_CH_SCAN_PROGRESS) {
1407	//bos_sleep(100);
1408	bos_sleep(50);
1409	}
1410
1411	}
1412	} else
1413	{
1414	if ((0 == ch.video_pid) && (0 == ch.num_audio)) {
1415	BDBG_WRN(("Skip data program %d.%d",ch.major, ch.minor));
1416	}
1417	else
1418	BDBG_WRN(("PSIP_VCT_getChannel %d failed",minor_idx));
1419	}
1420	}
1421	if (p_chm->not_check_cancel)
1422	break;
1423	} while ((section_size > 0) && !got_vct);
1424
1425	if (!p_chm->not_check_cancel && chm_check_cancel(p_chm))
1426	{
1427	return eCHM_ERR_CANCELED;
1428	}
1429	section_number++;
1430	#if 1 //LAST_SECTION_BUG_FIX
1431	if (section_number <= p_chm->vct_buf[7])
1432	#else
1433	if (section_number < p_chm->vct_buf[7])
1434	#endif
1435	timeout = bos_getticks() + MS_TO_TICKS(15 * VCT_TIMEOUT);
1436	}
1437	#if 1 //LAST_SECTION_BUG_FIX
1438	while (section_number <= p_chm->vct_buf[7]); // hschang_130613 should also include last section
1439	#else
1440	//while ((section_number < p_chm->vct_buf[7]) && (timeout < bos_getticks()));
1441	while (section_number < p_chm->vct_buf[7]);
1442	#endif
1443
1444	return((result > 0) \|\| (timeout < bos_getticks())) ? result : eCHM_ERR_TIMEOUT;
1445	}
1446
1447	/*
1448	Summary:
1449	Scan for channels using PSI for given frequency index
1450	Description:
1451	Scan for channels using PSI.
1452	Returns:
1453	Number of channels added
1454	Or error code if < 0
1455	*/
1456	static int chm_scan_psi(
1457	chm_mgr_t p_chm, / Channel manager reference */
1458	bband_t band,
1459	int freq_idx)
1460	{
1461	unsigned int section_size, pmt_section_size;
1462	TS_PMT_stream pmt;
1463	TS_PAT_program pat;
1464	int result = 0;
1465	int idx,p_idx,tresult, desc_idx = 0, programs;
1466	TS_PSI_descriptor psi_desc;
1467	unsigned short ca_pid = 0, minor = 1;
1468	bapp_ch_t ch;
1469
1470	/* Get the PAT */
1471	smessage_stream_params_init(&p_chm->msg_params, NULL);
1472	p_chm->msg_params.band = band;
1473	p_chm->msg_params.pid = (unsigned short)0; /* PAT */
1474	/* All PSIP tables have protocol_version which must be = 0 */
1475	//p_chm->msg_params.filter.coef[8] = 0x00; /* protocol_version */
1476	//p_chm->msg_params.filter.mask[8] = 0x00;
1477	section_size = PAT_BUF_LEN;
1478
1479	if ((result = chm_getmessage(p_chm,p_chm->pat_buf,&section_size, PAT_TIMEOUT)) != 0)
1480	{
1481	BDBG_WRN(("%s Timeout getting PAT\n",__func__));
1482	return result;
1483	}
1484
1485	if (TS_PAT_validate(p_chm->pat_buf, section_size) != true)
1486	{
1487	BDBG_WRN(("TS_PAT_validate failed\n"));
1488	return eCHM_ERR_FAILED;
1489	}
1490
1491	programs = TS_PAT_getNumPrograms(p_chm->pat_buf);
1492	BDBG_MSG(("Programs %d in PAT", programs));
1493
1494	if (0 == programs)
1495	{
1496	BDBG_WRN(("%s TS_PAT_getNumPrograms = 0,section_size = %d\n",__func__,section_size));
1497	return eCHM_ERR_FAILED;
1498	}
1499	p_chm->pat_crc = chm_section_crc(p_chm->pat_buf,section_size);
1500
1501	for (idx = 0; idx < programs; idx++)
1502	{
1503	if (chm_check_cancel(p_chm))
1504	{
1505	return eCHM_ERR_CANCELED;
1506	}
1507
1508	section_size = PAT_BUF_LEN;
1509	if ((tresult = TS_PAT_getProgram( p_chm->pat_buf, section_size, idx, &pat )) != b_ok)
1510	{
1511	BDBG_WRN(("TS_PAT_getProgram failed 0x%x", tresult));
1512	return eCHM_ERR_FAILED;
1513	}
1514
1515	smessage_stream_params_init(&p_chm->msg_params, NULL);
1516	p_chm->msg_params.band = band;
1517	p_chm->msg_params.pid = (unsigned short)pat.PID; /* PMT */
1518	/RLQ/
1519	p_chm->msg_params.filter.coef[0] = 0x2;
1520	p_chm->msg_params.filter.mask[0] = 0x00;
1521	pmt_section_size = PMT_BUF_LEN;
1522	if ((tresult = chm_getmessage(p_chm,p_chm->pmt_buf,&pmt_section_size, PMT_TIMEOUT)) != 0)
1523	{
1524	BDBG_WRN(("Failed getting PMT 0x%04x\n",pat.PID));
1525	continue;
1526	}
1527	p_chm->pmt_crc = chm_section_crc(p_chm->pmt_buf,pmt_section_size);
1528
1529	memset(&ch,0,sizeof(ch));
1530	ch.major = (freq_idx == 0x7F) ? 0 : freq_idx + 2; /* freq_idx is off by 2 */
1531	ch.minor = minor++;
1532	ch.freq_idx = freq_idx;
1533	ch.pcr_pid = TS_PMT_getPcrPid(p_chm->pmt_buf,pmt_section_size);
1534	ch.program_num = pat.program_number;
1535	ch.psi = true; /* we got this entry using PSI scan vs VCT */
1536	/* Get CA pid if */
1537	while ((psi_desc = TS_PMT_getDescriptor(p_chm->pmt_buf, pmt_section_size,desc_idx++)) != NULL)
1538	{
1539	if (desc_idx > 0xFF)
1540	{
1541	BDBG_ERR(("PMT Desc limit exceeded %d\n",desc_idx));
1542	break;
1543	}
1544	if (chm_check_cancel(p_chm))
1545	{
1546	return eCHM_ERR_CANCELED;
1547	}
1548	if (psi_desc[0] == 9)
1549	{
1550	ca_pid = (((unsigned short)(psi_desc[4] & 0x1F)) << 8) \| (unsigned short)psi_desc[5];
1551	BDBG_MSG(("CA PID = 0x%04x\n",ca_pid));
1552	break;
1553	}
1554	}
1555	if (ca_pid != 0x0000)
1556	{
1557	BDBG_MSG(("Program has CA PID 0x%02x check for scrambling control bit.\n",ca_pid));
1558	}
1559
1560	BDBG_MSG(("Streams = %d\n",TS_PMT_getNumStreams(p_chm->pmt_buf,pmt_section_size)));
1561	for (p_idx = 0; p_idx < TS_PMT_getNumStreams(p_chm->pmt_buf,pmt_section_size); p_idx++)
1562	{
1563	bsettop_av_stream_type_t *stream_type;
1564
1565	if (TS_PMT_getStream( p_chm->pmt_buf, pmt_section_size, p_idx, &pmt ) != b_ok)
1566	{
1567	BDBG_WRN(("Failure processing PMT %d\n",p_idx));
1568	return eCHM_ERR_FAILED;
1569	}
1570	if ((stream_type = bdecode_supported_video(pmt.stream_type)) != NULL)
1571	{
1572	BDBG_MSG(("Video PID[%d] = 0x%04x\n",p_idx,pmt.elementary_PID ));
1573	if (!ch.video_pid)
1574	{
1575	ch.video_pid = pmt.elementary_PID;
1576	ch.video_type = stream_type->codec_id;
1577	}
1578	}
1579	else if ((stream_type = bdecode_supported_audio(pmt.stream_type)) != NULL)
1580	{
1581	BDBG_MSG(("Audio PID[%d] = 0x%04x\n",ch.num_audio,pmt.elementary_PID ));
1582	if (!ch.audio_pid[ch.num_audio] && (ch.num_audio < MAX_AUDIO_PIDS))
1583	{
1584	ch.audio_pid[ch.num_audio] = pmt.elementary_PID;
1585	ch.audio_type[ch.num_audio] = stream_type->codec_id;
1586	if (0 == ch.num_audio)
1587	ch.cur_audio = 0;
1588	ch.num_audio++;
1589	}
1590	}
1591	}
1592
1593	if (ch.video_pid \|\| ch.audio_pid[0])
1594	{
1595	bool clear = true;
1596	unsigned short pid;
1597
1598	/* if has video, use video first */
1599	if (ch.video_pid)
1600	pid = ch.video_pid;
1601	else
1602	pid = ch.audio_pid[0];
1603	/* correct pid in case video pid carries too few frames */
1604	if(ch.pcr_pid == ch.audio_pid[0])
1605	pid = ch.audio_pid[0];
1606
1607	if (ca_pid != 0x0000)
1608	clear = chm_check_sc(p_chm, band, pid);
1609
1610	if (clear)
1611	{
1612	bapp_t p_app = (bapp_t )p_chm->p_app;
1613
1614	p_chm->chm_pat_evt.type = eCHM_EVT_STATUS;
1615	p_chm->chm_pat_evt.id = eCHM_STATUS_PAT;
1616	p_chm->chm_pat_evt.ticks = (unsigned int)(((p_chm->select_idx)*100)/p_chm->num_freq);
1617	chm_post_app_event(p_chm,&p_chm->chm_pat_evt);
1618	ch.frequency_khz = p_chm->freq_table[p_chm->select_idx];
1619	chm_add_vsb_channel(p_chm,&ch);
1620	result += 1;
1621
1622	/* in the chm_scan_psi, it will post STATUS_PAT. but sometimes the event is missed.. don't know why.. */
1623	if (p_app->screen_id == eSCREEN_CH_SCAN_PROGRESS) {
1624	bos_sleep(100);
1625	}
1626	}
1627	}
1628	}
1629
1630	return result;
1631	}
1632
1633	/*
1634	Summary:
1635	Process the EIT event descriptors and return > 0 if a change was made
1636	to the info structure, 0 if no changes are required and < 0
1637	if an error occured.
1638	*/
1639	static int chm_process_eit_desc(
1640	chm_mgr_t p_chm, / Channel manager reference */
1641	unsigned char msg_buf, / section buffer containing the EIT table */
1642	int eit_idx, /* EIT event index */
1643	chm_eit_t *p_eit
1644	)
1645	{
1646	TS_PSI_descriptor eit_desc;
1647	int eit_desc_idx,result = 0;
1648	bapp_t p_app = (bapp_t)p_chm->p_app;
1649	char * rating_str;
1650
1651	/* Process EIT entry descriptors */
1652	eit_desc_idx = 0;
1653	memset(p_eit->cc_service,0,MAX_CC_SERVICES * sizeof(PSIP_CSD_service));
1654	while ((eit_desc = PSIP_EIT_getEventDescriptor(p_chm->eit_buf,eit_idx,eit_desc_idx++)) != NULL)
1655	{
1656	switch (eit_desc[0])
1657	{
1658	case 0x87: /* Content advisory descriptor */
1659	{
1660	int rr_idx,rd_idx,psip_str_len;
1661	PSIP_CAD_rating_region rr;
1662	PSIP_CAD_rating_dimension rd;
1663	static chm_event_t chm_evt;
1664	PSIP_RRT_header rrt_header;
1665	int blocked = 0;
1666	if (p_app->settings.rrt_settings.rrt_status == eRRT_AVAILABLE)
1667	{
1668	PSIP_RRT_getHeader(p_app->settings.rrt_settings.rrt, &rrt_header);
1669	} else
1670	{
1671	rrt_header.rating_region = 1;
1672	}
1673
1674	p_app->psip_rating_str[0] = 0;
1675	for (rr_idx = 0; rr_idx < PSIP_CAD_getRatingRegionCount(eit_desc); ++rr_idx)
1676	{
1677	if (PSIP_CAD_getRatingRegion(eit_desc,rr_idx,&rr) != BERR_SUCCESS)
1678	continue;
1679
1680	if ((rr.rating_region != 1) && (rr.rating_region != rrt_header.rating_region))
1681	{
1682	BDBG_WRN(("CAD skip %d of %d, rating_region = %d, current = %d\n",
1683	rr_idx,PSIP_CAD_getRatingRegionCount(eit_desc),rr.rating_region,rrt_header.rating_region));
1684	continue;
1685	}
1686
1687	if (rr_idx > 0)
1688	{
1689	if (strlen(p_app->psip_rating_str) + 4 < MAX_RATING_STR_CHARS)
1690	{
1691	psip_str_len = strlen(p_app->psip_rating_str);
1692	p_app->psip_rating_str[psip_str_len] = ',';
1693	p_app->psip_rating_str[psip_str_len + 1] = ' ';
1694	p_app->psip_rating_str[psip_str_len + 2] = 0;
1695	}
1696	}
1697	psip_str_len = strlen(p_app->psip_rating_str);
1698	if (chm_process_mss(p_chm,rr.p_rating_description_text,&(p_app->psip_rating_str[psip_str_len]),
1699	MAX_RATING_STR_CHARS - psip_str_len) == 0)
1700	{
1701	BDBG_MSG(("CAD[%d,%d] %s %d\n",rr_idx,rr.rating_region,p_app->psip_rating_str,rr.rated_dimensions));
1702	if (p_app->settings.rrt_settings.rrt_status == eRRT_AVAILABLE && (1 != rr.rating_region)) {
1703	unsigned char p = strchr(p_app->psip_rating_str, (int)','), p1;
1704	if (p) {
1705	int size;
1706
1707	/* remember current point at ',' */
1708	p1 = p;
1709	p++; /* skip ',' */
1710	if (0x20 == p) / skip ' ' */
1711	p++;
1712
1713	if (!isdigit(*p)) {
1714	psip_str_len = strlen(p_app->psip_rating_str);
1715	size = psip_str_len - (int)(p - p_app->psip_rating_str);
1716	p = cad_rating_filter(p_app->settings.rrt_settings.rrt, p, &size);
1717	if (p) {
1718	p1++;
1719	strcpy(p1, p);
1720	}
1721	else {
1722	/* NULL, remove ',' as well */
1723	*p1 = '\0';
1724	}
1725	psip_str_len = strlen(p_app->psip_rating_str);
1726	}
1727	}
1728	}
1729	rating_str = NULL;
1730	} else
1731	{
1732	BDBG_MSG(("CAD[%d] chm_process_mss failed\n",rr_idx));
1733	rating_str = &(p_app->psip_rating_str[psip_str_len]);
1734	}
1735
1736	for (rd_idx = 0; rd_idx < rr.rated_dimensions; ++rd_idx)
1737	{
1738	if (PSIP_CAD_getRatingDimension(eit_desc,rr_idx,rd_idx,&rd) != BERR_SUCCESS)
1739	{
1740	BDBG_WRN(("PSIP_CAD_getRatingDimension(%d,%d,%d) failed\n",rr.rating_region,rr_idx,rd_idx));
1741	continue;
1742	}
1743
1744	if (rating_str != NULL)
1745	{
1746	psip_str_len = strlen(p_app->psip_rating_str);
1747	rating_str = &(p_app->psip_rating_str[psip_str_len]);
1748	}
1749	#ifndef NO_VCHIP
1750	BDBG_MSG(("*** CAD_RD[%d,%d] region %d, %d-%d\n",rr_idx, rd_idx, rr.rating_region, rd.rating_dimension_j,rd.rating_value));
1751	blocked \|= chm_psip_block(p_app, rr.rating_region, rd.rating_dimension_j, rd.rating_value,rating_str);
1752	BDBG_MSG(("--- dim:%d value:%d blocked:%d, %s\n", rd.rating_dimension_j, rd.rating_value, blocked,p_app->psip_rating_str));
1753	#endif
1754	}
1755	if (chm_check_cancel(p_chm))
1756	return eCHM_ERR_CANCELED;
1757	}
1758
1759	chm_evt.type = eCHM_EVT_CAD;
1760	chm_evt.id = (((unsigned int)blocked) << 24) \|
1761	(((unsigned int)rr.rating_region) << 16) \|
1762	(((unsigned int)rd.rating_dimension_j) << 8) \|
1763	((unsigned int)rd.rating_value);
1764	chm_evt.ticks = bos_getticks();
1765	result++;
1766	bos_post_event(p_app->msg_queue,(b_event_t*)&chm_evt);
1767	bos_sleep(30); /* yield so other thread can update */
1768	}
1769	break;
1770	case 0x86: /* Caption Service descriptor */
1771	{
1772	int csd_idx;
1773	PSIP_CSD_service tmpCSD;
1774	for (csd_idx = 0; csd_idx < PSIP_CSD_getNumServices(eit_desc); ++csd_idx)
1775	{
1776	if (PSIP_CSD_getService(eit_desc,csd_idx,&tmpCSD) != BERR_SUCCESS)
1777	{
1778	BDBG_WRN(("Error getting CSD %d\n", csd_idx));
1779	continue;
1780	}
1781	BDBG_MSG(("CSD-%d) %d, %d, %c%c%c\n", csd_idx,tmpCSD.cc_type,
1782	tmpCSD.cc.caption_service_number,tmpCSD.language[0],tmpCSD.language[1],tmpCSD.language[2]));
1783	if (!tmpCSD.cc_type \|\|
1784	(tmpCSD.cc.caption_service_number == 0) \|\|
1785	(tmpCSD.cc.caption_service_number > MAX_CC_SERVICES))
1786	continue;
1787	memcpy(&(p_eit->cc_service[tmpCSD.cc.caption_service_number - 1]),&tmpCSD,sizeof(PSIP_CSD_service));
1788	}
1789	}
1790	break;
1791	case 0x81: /* AC-3 Audio descriptor */
1792	case 0xAA: /* Redistribution control descriptor */
1793	case 0xB6: /* Content identifier descriptor */
1794	case 0xAB: /* Genre descriptor */
1795	default:
1796	BDBG_MSG((" EIT_DESC[0x%02x]\n",eit_desc[0]));
1797	break;
1798	}
1799	}
1800	return result;
1801	}
1802
1803	/*
1804	Summary:
1805	Get the EIT section and return > 0 if a change was made
1806	to the info structure, 0 if no changes are required and < 0
1807	if an error occured.
1808	*/
1809	static int chm_get_eit(
1810	chm_mgr_t p_chm, / Channel manager reference */
1811	chm_info_t p_info, / info structure to populate */
1812	unsigned short source_id, /* channel source ID from VCT channel */
1813	unsigned short pid /* table type pid */
1814	)
1815	{
1816	int eit_events,eit_idx,update,result;
1817	unsigned int eit_section_size,utc_time;
1818	PSIP_EIT_event eit;
1819	unsigned char p_source_id = (unsigned char)&source_id;
1820
1821	if (chm_check_cancel(p_chm))
1822	return eCHM_ERR_CANCELED;
1823
1824	if ((result = chm_get_utctime(p_chm,&utc_time)) != 0)
1825	return result;
1826
1827	BDBG_MSG(("UTC TIME(%u), source_id=0x%x\n",utc_time, source_id));
1828
1829	update = eEIT_NONE;
1830	smessage_stream_params_init(&p_chm->msg_params, NULL);
1831	p_chm->msg_params.band = p_chm->band;
1832	p_chm->msg_params.pid = pid; /* base pid */
1833
1834	/* Source ID for channel (assumes little endian system!!! )*/
1835	p_chm->msg_params.filter.coef[0] = 0xCB;
1836	p_chm->msg_params.filter.mask[0] = 0x00;
1837	p_chm->msg_params.filter.coef[3] = p_source_id[1];
1838	p_chm->msg_params.filter.mask[3] = 0x00;
1839	p_chm->msg_params.filter.coef[4] = p_source_id[0];
1840	p_chm->msg_params.filter.mask[4] = 0x00;
1841	/* All PSIP tables have protocol_version which must be = 0 */
1842	p_chm->msg_params.filter.coef[8] = 0x00; /* protocol_version */
1843	p_chm->msg_params.filter.mask[8] = 0x00;
1844	eit_section_size = EIT_BUF_LEN;
1845
1846	if ((result = chm_getmessage(p_chm,p_chm->eit_buf,&eit_section_size, EIT_TIMEOUT)) != 0) {
1847	BDBG_MSG(("%s failed, result=0x%x", __func__, result));
1848	return result;
1849	}
1850	else
1851	{
1852	int eit_cnt = 2; /* track eit entry index */
1853
1854	chm_get_utctime(p_chm,&utc_time);
1855	utc_time += p_chm->stt.GPS_UTC_offset;
1856
1857	eit_events = PSIP_EIT_getNumEvents(p_chm->eit_buf);
1858	for (eit_idx = 0; eit_idx < eit_events; eit_idx++)
1859	{
1860	if (chm_check_cancel(p_chm))
1861	return eCHM_ERR_CANCELED;
1862
1863	if (PSIP_EIT_getEvent(p_chm->eit_buf,eit_idx,&eit) != BERR_SUCCESS)
1864	continue;
1865
1866	if ((utc_time >= eit.start_time) && (utc_time < (eit.start_time + eit.length_in_seconds)))
1867	{
1868	chm_process_mss(p_chm,eit.p_title_text,
1869	p_info->eit_info[EIT_CURRENT].prog_title,MAX_TITLE_CHARS);
1870
1871	p_info->eit_info[EIT_CURRENT].event_id = eit.event_id;
1872	p_info->eit_info[EIT_CURRENT].length = eit.length_in_seconds;
1873	p_info->eit_info[EIT_CURRENT].start_time = eit.start_time;
1874	BDBG_MSG(("EIT cur=%s(%d,%u,%u)\n",p_info->eit_info[EIT_CURRENT].prog_title,eit.event_id,eit.start_time,eit.length_in_seconds));
1875
1876	update \|= eEIT_CURRENT;
1877	chm_process_eit_desc(p_chm,p_chm->eit_buf,eit_idx,&(p_info->eit_info[EIT_CURRENT]));
1878	/* got current event */
1879	p_chm->got_eit = true;
1880	} else if (((p_info->eit_info[EIT_CURRENT].start_time + p_info->eit_info[EIT_CURRENT].length) >= eit.start_time) &&
1881	((p_info->eit_info[EIT_CURRENT].start_time + p_info->eit_info[EIT_CURRENT].length) < (eit.start_time + eit.length_in_seconds)))
1882	{
1883	chm_process_mss(p_chm,eit.p_title_text,
1884	p_info->eit_info[EIT_NEXT].prog_title,MAX_TITLE_CHARS);
1885
1886	p_info->eit_info[EIT_NEXT].event_id = eit.event_id;
1887	p_info->eit_info[EIT_NEXT].length = eit.length_in_seconds;
1888	p_info->eit_info[EIT_NEXT].start_time = eit.start_time;
1889	BDBG_MSG(("EIT next=%s(%d,%u,%u)\n",p_info->eit_info[EIT_NEXT].prog_title, p_info->eit_info[EIT_NEXT].event_id,eit.start_time,eit.length_in_seconds));
1890	update \|= eEIT_NEXT;
1891	} else
1892	{
1893	/* update other entries */
1894	if ((eit_idx < MAX_EIT_NUM) && (eit_cnt < MAX_EIT_NUM)) {
1895	/* same batch of EIT data after NEXT */
1896	if (update & eEIT_NEXT) {
1897	chm_process_mss(p_chm,eit.p_title_text, p_info->eit_info[eit_cnt].prog_title,MAX_TITLE_CHARS);
1898	p_info->eit_info[eit_cnt].event_id = eit.event_id;
1899	p_info->eit_info[eit_cnt].length = eit.length_in_seconds;
1900	p_info->eit_info[eit_cnt].start_time = eit.start_time;
1901	BDBG_WRN(("EIT entry %d = %s(%d,%u,%u, utc_time=%u)\n",eit_idx,p_info->eit_info[eit_cnt].prog_title, p_info->eit_info[eit_cnt].event_id,eit.start_time,eit.length_in_seconds,utc_time));
1902	eit_cnt++;
1903	update \|= eEIT_CONT; /* beyond current and next entries */
1904	}
1905	}
1906	}
1907	/* exit if both are found */
1908	//if (update == eEIT_BOTH) /* don't quit since we need to get more EPG */
1909	// break;
1910	}
1911	}
1912
1913	return update;
1914	}
1915
1916
1917	/*
1918	Summary:
1919	Get the ETT section and return > 0 if a change was made
1920	to the info structure, 0 if no changes are required and < 0
1921	if an error occured.
1922	*/
1923
1924	static int chm_get_ett(
1925	chm_mgr_t p_chm, / Channel manager reference */
1926	chm_info_t p_info, / info structure to populate */
1927	unsigned short source_id, /* channel source ID from VCT channel */
1928	unsigned short pid /* type type pid */
1929	)
1930	{
1931	int update;
1932	unsigned int ett_section_size;
1933	unsigned char p_source_id = (unsigned char)&source_id;
1934	PSIP_ETT_header ett;
1935	int result;
1936	unsigned short event_id;
1937
1938	update = eEIT_NONE;
1939
1940	smessage_stream_params_init(&p_chm->msg_params, NULL);
1941	p_chm->msg_params.band = p_chm->band;
1942	p_chm->msg_params.pid = pid; /* base pid */
1943
1944	/* All PSIP tables have protocol_version which must be = 0 */
1945	p_chm->msg_params.filter.coef[8] = 0x00; /* protocol_version */
1946	p_chm->msg_params.filter.mask[8] = 0x00;
1947	/* Source ID for channel (assumes little endian system!!! )*/
1948	p_chm->msg_params.filter.coef[9] = p_source_id[1];
1949	p_chm->msg_params.filter.mask[9] = 0x00;
1950	p_chm->msg_params.filter.coef[10] = p_source_id[0];
1951	p_chm->msg_params.filter.mask[10] = 0x00;
1952	/* just check current one */
1953	event_id = (p_info->eit_info[EIT_CURRENT].event_id << 2) \| 0x2;
1954	p_chm->msg_params.filter.coef[11] = (event_id >> 8);
1955	p_chm->msg_params.filter.mask[11] = 0x00;
1956	p_chm->msg_params.filter.coef[12] = event_id & 0xff;
1957	p_chm->msg_params.filter.mask[12] = 0x03;
1958	ett_section_size = ETT_BUF_LEN;
1959
1960	if ((result = chm_getmessage(p_chm,p_chm->ett_buf,&ett_section_size, ETT_TIMEOUT)) != 0)
1961	return result;
1962	else
1963	{
1964	p_chm->ett_cnt++;
1965	PSIP_ETT_getHeader(p_chm->ett_buf,&ett);
1966
1967	if (ett.ETM_id.event_id == p_info->eit_info[EIT_CURRENT].event_id)
1968	{
1969	chm_process_mss(p_chm,ett.p_extended_text_message,
1970	p_info->eit_info[EIT_CURRENT].prog_desc,MAX_DESC_CHARS);
1971	update \|= eEIT_CURRENT;
1972	BDBG_MSG(("ETT: 0x%04x(%d) %s\n",pid, EIT_CURRENT,p_info->eit_info[EIT_CURRENT].prog_desc));
1973	p_chm->got_ett = true;
1974	} else if (ett.ETM_id.event_id == p_info->eit_info[EIT_NEXT].event_id)
1975	{
1976	chm_process_mss(p_chm,ett.p_extended_text_message,
1977	p_info->eit_info[EIT_NEXT].prog_desc,MAX_DESC_CHARS);
1978
1979	update \|= eEIT_NEXT;
1980	BDBG_MSG(("ETT: 0x%04x(%d) %s\n",pid, EIT_NEXT,p_info->eit_info[EIT_NEXT].prog_desc));
1981	} else
1982	{
1983	#ifdef BCM_DEBUG
1984	chm_process_mss(p_chm,ett.p_extended_text_message, p_chm->tmp_text,MAX_TITLE_CHARS);
1985	BDBG_MSG(("ETT: 0x%04x(%d != %d or %d) %s\n",pid,ett.ETM_id.event_id,
1986	p_info->eit_info[EIT_CURRENT].event_id,p_info->eit_info[EIT_NEXT].event_id ,p_chm->tmp_text));
1987	#endif
1988	}
1989	}
1990	return update;
1991	}
1992
1993	/*
1994	Summary:
1995	Process the MMS string and associated tables.
1996	Returns
1997	non-zero on failure.
1998	*/
1999	int chm_process_mss(
2000	chm_mgr_t p_chm, / Channel manager reference */
2001	PSIP_MSS_string p_mms, /* Pointer to MMS */
2002	unsigned char* mms_buf, /* string buffer */
2003	unsigned int mms_len /* string buffer length */
2004	)
2005	{
2006	int str_idx,lsize;
2007	char *p_code;
2008	BERR_Code retcode;
2009	int num_str;
2010	bapp_t *p_app;
2011
2012	if (!p_mms)
2013	return eCHM_ERR_FAILED;
2014
2015	num_str = PSIP_MSS_getNumStrings(p_mms);
2016	p_app = (bapp_t*)p_chm->p_app;
2017	memset(mms_buf,0,mms_len);
2018
2019	for (str_idx = 0; str_idx < num_str; ++str_idx) {
2020	if ((retcode = PSIP_MSS_getCode(p_mms,str_idx, &p_code)) != BERR_SUCCESS) {
2021	BDBG_MSG(("PSIP_MSS_getCode:%d failed %d\n",__LINE__,retcode));
2022	continue;
2023	}
2024	if (chm_valid_lang(p_chm,p_code) != p_app->lang) {
2025	continue;
2026	}
2027
2028	lsize = mms_len;
2029	if ((retcode = PSIP_MSS_getString(p_mms,str_idx,&lsize, mms_buf)) == BERR_SUCCESS) {
2030	/* got one matched to current language */
2031	return 0;
2032	}
2033	}
2034
2035	/* in case no valid language exists just use first string */
2036	if (num_str > 0) {
2037	lsize = mms_len;
2038	if ((retcode = PSIP_MSS_getString(p_mms,0,&lsize, mms_buf)) == BERR_SUCCESS) {
2039	BDBG_WRN(("No language match using first language in the MMS list\n"));
2040	return eCHM_ERR_OK;
2041	} else {
2042	BDBG_WRN(("PSIP_MSS_getString failed %d\n",retcode));
2043	}
2044	}
2045	BDBG_WRN(("%s: no valid string found, num_str = %d\n",__func__,num_str));
2046	return eCHM_ERR_FAILED;
2047	}
2048
2049	/*
2050	Summary:
2051	Pocess the VCT in background manner?
2052	Returns
2053	non-zero on failure.
2054	*/
2055	static int chm_process_vct(
2056	chm_mgr_t p_chm, / Channel manager reference */
2057	unsigned char msg_buf, / Buffer containing the MGT table */
2058	unsigned int msg_size, /* PSI buffer size */
2059	chm_info_t p_info, / info structure to populate */
2060	unsigned short minor /* minor ch number */
2061	)
2062	{
2063	int minor_idx,sld_idx,total;
2064	TS_PSI_descriptor psi_desc;
2065	PSIP_VCT_channel vct;
2066	bapp_t p_app = (bapp_t)p_chm->p_app;
2067
2068	total = PSIP_VCT_getNumChannels(msg_buf);
2069	if (total < 1)
2070	return eCHM_ERR_FAILED;
2071
2072	for (minor_idx = 0; minor_idx < total; ++minor_idx)
2073	{
2074	/* if user cancel is recevied */
2075	if (chm_check_cancel(p_chm))
2076	return eCHM_ERR_CANCELED;
2077
2078	memset(&vct,0,sizeof(vct));
2079	if (PSIP_VCT_getChannel( (const uint8_t *)msg_buf, minor_idx, &vct ) != BERR_SUCCESS)
2080	{
2081	BDBG_WRN(("Failure processing VCT %d\n",minor_idx));
2082	return eCHM_ERR_FAILED;
2083	}
2084	/* for digital, start from 1 */
2085	if (vct.minor_channel_number != minor)
2086	{
2087	BDBG_MSG(("VCT minor number %d not match to %d\n",vct.minor_channel_number, minor));
2088	continue;
2089	}
2090	p_info->major = vct.major_channel_number;
2091	p_info->minor = vct.minor_channel_number;
2092	p_info->source_id = vct.source_id;
2093	p_info->program_number = vct.program_number;
2094	memcpy(p_info->ch_name, vct.short_name,sizeof(uint16_t) * MAX_CH_NAME_CHARS);
2095	p_info->got_vct = true;
2096
2097	if (p_chm->local_time_source == eTS_NONE)
2098	{
2099	p_chm->local_time_source = eTS_FIXED;
2100	p_chm->local_offset = 0 - (int)g_tz_map[p_app->settings.time_zone];
2101	p_chm->local_offset *= 3600;
2102	p_chm->local_dst_obs = p_app->settings.dst;
2103	BDBG_MSG(("### Local time %d Fixed ###\n",p_chm->local_offset));
2104	}
2105
2106	sld_idx = 0;
2107	while ((psi_desc = PSIP_VCT_getChannelDescriptor(msg_buf, minor_idx,sld_idx)) != NULL)
2108	{
2109	if (psi_desc[0] == 0xA0) /* Extended channel name descriptor */
2110	{
2111	PSIP_MSS_string lstr = PSIP_ECND_getLongChannelName(psi_desc);
2112	chm_process_mss(p_chm,lstr,p_info->ext_ch_name,MAX_LONG_NAME_CHARS);
2113	}
2114	sld_idx++;
2115	}
2116	return eCHM_ERR_OK;
2117	}
2118	return eCHM_ERR_FAILED; /* channel not found */
2119	}
2120
2121	/*
2122	Summary:
2123	Process the MGT and associated tables.
2124	Returns
2125	non-zero on failure.
2126	*/
2127	static int chm_process_mgt(
2128	chm_mgr_t p_chm, / Channel manager reference */
2129	unsigned char msg_buf, / Buffer containing the MGT table */
2130	unsigned int msg_size, /* PSI buffer size */
2131	chm_info_t p_info, / info structure to populate */
2132	bool ext_text, /* Get extended text */
2133	bool redraw /* Send redraw event */
2134	)
2135	{
2136	PSIP_MGT_table table;
2137	int num_tables, update = eEIT_NONE,result = 0;
2138	unsigned short source_id;
2139	unsigned int utc_time;
2140	bapp_t p_app = (bapp_t)p_chm->p_app;
2141
2142	if ((result = chm_get_utctime(p_chm,&utc_time)) != 0)
2143	return result;
2144
2145	gettimeofday(&p_chm->mgt_tv);
2146
2147	source_id = p_info->source_id;
2148	num_tables = PSIP_MGT_getTablesDefined(msg_buf);
2149	switch (p_chm->mgt_state)
2150	{
2151	case eMGT_EIT:
2152	/* try to get either EIT or ETT */
2153	for (p_chm->mgt_idx = 0; p_chm->mgt_idx < num_tables; p_chm->mgt_idx++)
2154	{
2155	if (chm_check_cancel(p_chm))
2156	return eCHM_ERR_CANCELED;
2157
2158	PSIP_MGT_getTable(msg_buf,p_chm->mgt_idx,&table);
2159	/* currently we only care current and next program instead of 128 eits (0x017F) */
2160	//if ((table.table_type >= 0x0100) && (table.table_type < (0x0100 + MAX_EIT_NUM)) && (eEIT_BOTH != update))
2161	if ((table.table_type >= 0x0100) && (table.table_type < (0x0100 + MAX_EIT_NUM)))
2162	{
2163	BDBG_MSG(("EIT: PID=0x%04x, type=0x%04x",table.table_type_PID,table.table_type));
2164
2165	result = chm_get_eit(p_chm,p_info,source_id,table.table_type_PID);
2166	if (result < 0) {
2167	BDBG_MSG(("chm_get_eit failed, ret=%d", result));
2168	if (update)
2169	result = 0;
2170	break;
2171	}
2172	#ifndef NO_VCHIP
2173	if (p_app->psip_rating_str[0] && !(0 == result \|\| eEIT_CONT == result)) {
2174	memcpy(&p_info->psip_rating_str, p_app->psip_rating_str, strlen(p_info->psip_rating_str));
2175	p_info->psip_rating_str[strlen(p_info->psip_rating_str)] = 0;
2176	}
2177	#endif
2178	if (eEIT_NONE == result) {
2179	/* continue check until find the EIT entry corresponding to current */
2180	/* current should be EIT-0 but some station encode it in different order */
2181	/* since now we have a new eEIT_CONT, so if it is not, then don't need to continue */
2182	if (update)
2183	break;
2184	}
2185
2186	/* clear CONT flag if any */
2187	result &= ~eEIT_CONT;
2188
2189	update \|= result;
2190	result = 0;
2191
2192	if (update != 0)
2193	{
2194	if (redraw)
2195	{
2196	chm_make_current(p_chm,p_info);
2197	p_chm->redraw_evt.type = eCHM_EVT_REDRAW;
2198	p_chm->redraw_evt.id = p_app->cur_ch_num;
2199	p_chm->redraw_evt.ticks = 1; /* force to redraw if in banner screen */
2200	chm_post_app_event(p_chm,&p_chm->redraw_evt);
2201	//bos_sleep(50);
2202	}
2203	}
2204	//if (update == eEIT_BOTH)
2205	// break;
2206	}
2207	#if 1
2208	if (((table.table_type >= 0x0200) && (table.table_type < 0x0201)) && !p_chm->got_ett && (update & eEIT_CURRENT))
2209	{
2210	BDBG_MSG(("ETT: PID=0x%04x, type=0x%04x",table.table_type_PID,table.table_type));
2211	chm_get_ett(p_chm,p_info,source_id,table.table_type_PID);
2212	/* update UI if in case BIG banner screen is shown */
2213	if ((update & eEIT_CURRENT) && p_chm->got_ett)
2214	{
2215	if (redraw)
2216	{
2217	chm_make_current(p_chm,p_info);
2218	p_chm->redraw_evt.type = eCHM_EVT_REDRAW;
2219	p_chm->redraw_evt.id = p_app->cur_ch_num;
2220	p_chm->redraw_evt.ticks = 1; /* force to redraw if in banner screen */
2221	chm_post_app_event(p_chm,&p_chm->redraw_evt);
2222	//bos_sleep(50);
2223	}
2224	}
2225	}
2226	#endif
2227	}
2228	if (update & eEIT_CURRENT) {
2229	/* have current event, so clear previous ETT if any to get ETT again */
2230	if (!p_chm->got_ett) {
2231	p_info->eit_info[EIT_CURRENT].prog_desc[0] = 0;
2232	p_chm->mgt_state = eMGT_ETT;
2233	result = 0;
2234	}
2235	else {
2236	p_chm->state = eCHM_PROG_IDLE;
2237	}
2238	}
2239	break;
2240
2241	case eMGT_ETT:
2242	if (!ext_text)
2243	{
2244	p_chm->state = eCHM_PROG_IDLE;
2245	break;
2246	}
2247	for (p_chm->mgt_idx = 0; p_chm->mgt_idx < num_tables; p_chm->mgt_idx++)
2248	{
2249	if (chm_check_cancel(p_chm))
2250	return eCHM_ERR_CANCELED;
2251
2252	PSIP_MGT_getTable(msg_buf,p_chm->mgt_idx,&table);
2253
2254	/* currently we only care current and next program instead of 128 eits (0x027F) */
2255	//if ((table.table_type >= 0x0200) && (table.table_type < (0x0200 + MAX_EIT_NUM)))
2256	if ((table.table_type >= 0x0200) && (table.table_type < (0x0201)))
2257	{
2258	BDBG_MSG(("ETT: PID=0x%04x, type=0x%04x",table.table_type_PID,table.table_type));
2259
2260	result = chm_get_ett(p_chm,p_info,source_id,table.table_type_PID);
2261	if (result < 0)
2262	{
2263	BDBG_WRN(("chm_get_ett failed, ret=%d", result));
2264	continue;
2265	}
2266
2267	update \|= result;
2268	result = 0;
2269
2270	if (update & eEIT_CURRENT)
2271	{
2272	if (redraw)
2273	{
2274	chm_make_current(p_chm,p_info);
2275	p_chm->redraw_evt.type = eCHM_EVT_REDRAW;
2276	p_chm->redraw_evt.id = p_app->cur_ch_num;
2277	p_chm->redraw_evt.ticks = 1; /* force to redraw if in banner screen */
2278	chm_post_app_event(p_chm,&p_chm->redraw_evt);
2279	//bos_sleep(50);
2280	}
2281	p_chm->state = eCHM_PROG_IDLE;
2282	break;
2283	}
2284	}
2285	}
2286	break;
2287	}
2288
2289	return result;
2290	}
2291
2292	/*
2293	Summary:
2294	Get the VCT callback, and process it
2295	*/
2296	void * chm_smessage_vct_callback(void * context, size_t size)
2297	{
2298	chm_mgr_t * p_chm;
2299	bapp_t *p_app;
2300	int total;
2301
2302	p_chm = (chm_mgr_t*)context;
2303	p_app = (bapp_t*)p_chm->p_app;
2304
2305	if (chm_check_cancel(p_chm))
2306	return(void*)NULL;
2307
2308	total = PSIP_VCT_getNumChannels(p_chm->vct_buf);
2309	if (total >= p_app->settings.ch[p_chm->cur_ch_num].minor) {
2310	/TODO need add one more state to process VCT instead process it in callback /
2311	/* VERIFY slow channel change */
2312	#if 0
2313	if (eCHM_ERR_OK == chm_process_vct(p_chm,p_chm->vct_buf, size, &p_chm->p_info[p_chm->cur_ch_num], p_app->settings.ch[p_chm->cur_ch_num].minor)) {
2314	p_chm->got_vct = true;
2315	}
2316	#endif
2317	}
2318
2319	//return(void*)p_chm->vct_buf;
2320	return (p_chm->got_vct ? (void )NULL : (void)p_chm->vct_buf);
2321	}
2322
2323	/*
2324	Summary:
2325	Get the VCT. return non-zero on failure
2326	*/
2327	static int chm_get_vct(
2328	chm_mgr_t p_chm, / Channel manager reference */
2329	chm_info_t p_info / info structure to populate */
2330	)
2331	{
2332	bapp_t p_app= (bapp_t)p_chm->p_app;
2333	unsigned int section_size,section_number;
2334	int result = eCHM_ERR_OK;
2335
2336	if (p_info->got_vct)
2337	{
2338	p_chm->state = eCHM_GET_MGT;
2339	return result;
2340	}
2341
2342	section_number = 0;
2343	do
2344	{
2345	if (chm_check_cancel(p_chm))
2346	return eCHM_ERR_CANCELED;
2347
2348	/* Get the VCT */
2349	smessage_stream_params_init(&p_chm->msg_params, NULL);
2350	p_chm->msg_params.band = p_chm->band;
2351	p_chm->msg_params.pid = 0x1ffb; /* VCT */
2352	section_size = VCT_BUF_LEN;
2353
2354	p_chm->msg_params.filter.coef[0] = 0xc8; /* Table ID for terrestrial */
2355	p_chm->msg_params.filter.mask[0] = 0x00;
2356	p_chm->msg_params.filter.coef[6] = section_number; /* section number */
2357	p_chm->msg_params.filter.mask[6] = 0x00;
2358	/* All PSIP tables have protocol_version which must be = 0 */
2359	p_chm->msg_params.filter.coef[8] = 0x00; /* protocol_version */
2360	p_chm->msg_params.filter.mask[8] = 0x00;
2361
2362	if ((result = chm_getmessage(p_chm,p_chm->vct_buf, &section_size, VCT_TIMEOUT)) != 0)
2363	{
2364	BDBG_WRN(("%s Timeout waiting for VCT (section # %d)\n",__func__,section_number));
2365	return result;
2366	}
2367
2368	if (chm_check_cancel(p_chm))
2369	return eCHM_ERR_CANCELED;
2370
2371	if (chm_process_vct(p_chm,p_chm->vct_buf, section_size,
2372	p_info,p_app->settings.ch[p_chm->cur_ch_num].minor) != 0)
2373	{
2374	BDBG_WRN(("VCT entry not found %d\n",section_number));
2375	section_number++;
2376	continue;
2377	}
2378	break;
2379	} while (section_size != 0);
2380
2381	p_chm->state = eCHM_GET_MGT;
2382
2383	return result;
2384	}
2385
2386	/*
2387	* Summary:
2388	* Stop the VCT message filter.
2389	*/
2390	static void chm_mgt_stop(chm_mgr_t *p_chm)
2391	{
2392	if (NULL != p_chm->mgt_msg)
2393	{
2394	if (b_ok != smessage_stop(p_chm->mgt_msg))
2395	{
2396	BDBG_ERR(("%s:%d",__func__, __LINE__));
2397	return;
2398	}
2399	smessage_close(p_chm->mgt_msg);
2400	p_chm->mgt_msg = NULL;
2401	}
2402	}
2403
2404	/*
2405	* Summary:
2406	* MGT callback, and process it
2407	*/
2408	void chm_smessage_mgt_callback(void context, size_t size)
2409	{
2410	chm_mgr_t * p_chm;
2411	bapp_t *p_app;
2412	int total;
2413	uint32_t crc;
2414
2415	p_chm = (chm_mgr_t*)context;
2416	p_app = (bapp_t*)p_chm->p_app;
2417
2418	if (chm_check_cancel(p_chm))
2419	return(void*)NULL;
2420
2421	total = PSIP_MGT_getTablesDefined(p_chm->mgt_buf);
2422	if (total > 0) {
2423	/* new MGT? */
2424	crc = chm_section_crc(p_chm->mgt_buf, size);
2425	if (p_chm->mgt_crc != crc) {
2426	p_chm->mgt_crc = crc;
2427	p_chm->mgt_size = size;
2428	p_chm->got_mgt = true;
2429	p_chm->mgt_state = eMGT_EIT;
2430	p_chm->state = eCHM_PROCESS_MGT;
2431	}
2432	}
2433
2434	return(void*)p_chm->mgt_buf;
2435	}
2436
2437	static int chm_mgt_start(
2438	chm_mgr_t *p_chm,
2439	unsigned short network_pid
2440	)
2441	{
2442	int cerr = eCHM_ERR_OK;
2443
2444	chm_mgt_stop(p_chm);
2445
2446	p_chm->mgt_msg = smessage_open(smessage_format_psi);
2447	if (NULL == p_chm->mgt_msg)
2448	{
2449	BDBG_ERR(("%s failed",__func__));
2450	cerr = eCHM_ERR_FAILED;
2451	goto ExitFunc;
2452	}
2453	smessage_stream_params_init(&p_chm->msg_params, NULL);
2454	p_chm->msg_params.band = p_chm->band;
2455	p_chm->msg_params.pid = (uint16_t)network_pid; /* 0x1ffb */
2456
2457	p_chm->msg_params.filter.coef[0] = 0xC7;
2458	p_chm->msg_params.filter.mask[0] = 0x00;
2459	/* All PSIP tables have protocol_version which must be = 0 */
2460	p_chm->msg_params.filter.coef[8] = 0x00; /* protocol_version */
2461	p_chm->msg_params.filter.mask[8] = 0x00;
2462	p_chm->msg_params.buffer = p_chm->mgt_buf;
2463	p_chm->msg_params.buffer_size = MGT_BUF_LEN;
2464	/* processing is done in callback */
2465	p_chm->msg_params.data_ready_callback = chm_smessage_mgt_callback;
2466	p_chm->msg_params.overflow = NULL;
2467	p_chm->msg_params.callback_context = (void *)p_chm;
2468	if (b_ok != smessage_start(&p_chm->msg_params, p_chm->mgt_msg))
2469	{
2470	BDBG_ERR(("%s:%d",__FILE__, __LINE__));
2471	cerr = eCHM_ERR_FAILED;
2472	}
2473
2474	ExitFunc:
2475	return cerr;
2476	}
2477
2478	/*
2479	Summary:
2480	Get the MGT. return non-zero on failure
2481	*/
2482	static int chm_get_mgt(chm_mgr_t *p_chm)
2483	{
2484	int result;
2485
2486	smessage_stream_params_init(&p_chm->msg_params, NULL);
2487	p_chm->msg_params.band = p_chm->band;
2488	p_chm->msg_params.pid = (unsigned short)0x1FFB; /* base pid */
2489	p_chm->mgt_size = MGT_BUF_LEN;
2490	p_chm->msg_params.filter.coef[0] = 0xC7;
2491	p_chm->msg_params.filter.mask[0] = 0x00;
2492	/* All PSIP tables have protocol_version which must be = 0 */
2493	p_chm->msg_params.filter.coef[8] = 0x00; /* protocol_version */
2494	p_chm->msg_params.filter.mask[8] = 0x00;
2495
2496	if ((result = chm_getmessage(p_chm,p_chm->mgt_buf,&p_chm->mgt_size, MGT_TIMEOUT)) != 0)
2497	{
2498	BDBG_WRN(("Timeout waiting for MGT\n"));
2499	return result;
2500	}
2501
2502	p_chm->got_mgt = true;
2503	p_chm->mgt_state = eMGT_EIT;
2504	p_chm->state = eCHM_PROCESS_MGT;
2505	p_chm->mgt_cnt++;
2506
2507	return eCHM_ERR_OK;
2508	}
2509
2510	/*
2511	Summary:
2512	Generic tuner cancel callback.
2513	*/
2514	void chm_tune_cancel_callback(void *context)
2515	{
2516	chm_mgr_t p_chm = (chm_mgr_t )context;
2517
2518	if (chm_check_cancel(p_chm))
2519	{
2520	BDBG_WRN(("### CANCEL TUNE ###\n"));
2521	p_chm->tuner_params.cancel = true;
2522	}
2523	}
2524
2525	/*
2526	Summary:
2527	Return the hunt mode progress in percent so that the UI can be updated accordingly.
2528	*/
2529
2530	int chm_get_hunt_progress(chm_mgr_t *p_chm)
2531	{
2532	bapp_t p_app = (bapp_t )p_chm->p_app;
2533
2534	if (0 == p_app->settings.num_channels)
2535	{
2536	if (eFREQ_TABLE_USER_DEFINED == p_chm->fe_type)
2537	bapp_user_freq_table_get(p_app, &p_chm->freq_table, &p_chm->num_freq);
2538	else
2539	bapp_freq_table_get(p_chm->fe_type,(const unsigned int **)&(p_chm->freq_table),&(p_chm->num_freq));
2540	}
2541
2542	if (p_chm->num_freq == 0)
2543	{
2544	BDBG_WRN(("%s p_chm->num_freq = %d",__func__,p_chm->num_freq));
2545	return 0;
2546	}
2547	return (p_chm->select_idx * 100)/p_chm->num_freq;
2548	}
2549
2550	#ifdef ACB612
2551	bool chm_GetScanStatusFinish(void)
2552	{
2553	return isScanStatusFinish;
2554	}
2555	#endif
2556	/*
2557	Summary:
2558	Reset the channel and do a scan for channels to create a new channel map.
2559	Description:
2560	Scan for all available channels.
2561	*/
2562
2563	static void chm_scan(chm_mgr_t *p_chm)
2564	{
2565	bapp_t p_app = (bapp_t)p_chm->p_app;
2566	unsigned int freq;
2567	int num;
2568	#ifdef ACB612
2569	int nFCnt = 0;
2570	isScanStatusFinish = false;
2571	#endif
2572	bband_t rc;
2573
2574	if (eFREQ_TABLE_USER_DEFINED == p_chm->fe_type)
2575	bapp_user_freq_table_get(p_app, &p_chm->freq_table, &p_chm->num_freq);
2576	else
2577	bapp_freq_table_get(p_chm->fe_type,(const unsigned int **)&(p_chm->freq_table),&(p_chm->num_freq));
2578
2579	/* current we do a full scan always, so clear channel map information */
2580	p_app->settings.num_channels = 0;
2581	p_app->cur_ch_num = 0;
2582	p_chm->cur_ch_num = 0;
2583	memset(p_chm->p_info,0,p_chm->num_freq * sizeof(chm_info_t));
2584
2585	p_chm->band = TUNER_BAND;
2586	#ifdef ACB612
2587	if(p_app->factory_test)
2588	nFCnt = 0;
2589	#endif
2590	for (p_chm->select_idx = 0; p_chm->select_idx < p_chm->num_freq; p_chm->select_idx++)
2591	{
2592	#ifdef ACB612
2593	if(p_app->factory_test)
2594	{
2595	if(nFCnt >= FACTORY_CHN_NUMBER)
2596	break;
2597	p_chm->select_idx = (F_chaSet[nFCnt] - 2);
2598	nFCnt++;
2599	}
2600	#endif
2601	freq = (unsigned int)(p_chm->freq_table[p_chm->select_idx]);
2602	freq = 1000; / convert to Hz */
2603	/* need to show frequency in scanning on UI */
2604	p_chm->last_freq_hz = freq;
2605	BDBG_WRN(("Scan[%d] freq = %d\n",p_chm->select_idx,freq));
2606
2607	/* Check to see if scan was canceled */
2608	if (chm_check_cancel(p_chm))
2609	break;
2610
2611	if (eFREQ_TABLE_USER_DEFINED != p_chm->fe_type) {
2612	/* output progress event id will be % done */
2613	p_chm->chm_pat_evt.type = eCHM_EVT_STATUS;
2614	p_chm->chm_pat_evt.id = eCHM_STATUS_NOPAT;
2615	p_chm->chm_pat_evt.ticks = (unsigned int)(((p_chm->select_idx)*100)/p_chm->num_freq);
2616	chm_post_app_event(p_chm,&p_chm->chm_pat_evt);
2617	}
2618
2619	/* Try tuning */
2620	btuner_params_init(&p_chm->tuner_params, p_chm->tuner);
2621	p_chm->tuner_params.cancel_callback = chm_tune_cancel_callback;
2622	p_chm->tuner_params.cancel_callback_context = p_chm;
2623	p_chm->tuner_params.wait_for_lock = true;
2624
2625	rc = btuner_tune(p_chm->tuner, freq, &p_chm->tuner_params);
2626	if ( rc< 0)
2627	{
2628	BDBG_MSG(("FREQ[%d] freq = %d not locked, try next freq",p_chm->select_idx,freq));
2629	chm_send_status(p_chm,freq,false);
2630	continue;
2631	} else
2632	{
2633	//printf("%15s@%5d:%10s ===> FREQ [%3d] freq = %4dMhz locked\n", strrchr(__FILE__,'/')? strrchr(__FILE__,'/')+1 : __FILE__,__LINE__,__FUNCTION__,p_chm->select_idx,freq/1000000);
2634	chm_send_status(p_chm,freq,true);
2635	}
2636
2637	if ((num = chm_scan_vct(p_chm,p_chm->band,p_chm->select_idx)) <= 0)
2638	{
2639	BDBG_WRN(("no VCT found, perform PSI scan instead"));
2640	if ((num = chm_scan_psi(p_chm,p_chm->band,p_chm->select_idx)) <= 0)
2641	{
2642	BDBG_WRN(("chm_scan_psi found no channels\n"));
2643	} else
2644	{
2645	BDBG_MSG(("PSI channels %d \n", num));
2646	}
2647	}
2648	}
2649	/* clear it after scanning */
2650	p_chm->last_freq_hz = 0;
2651
2652	if (eFREQ_TABLE_USER_DEFINED != p_chm->fe_type) {
2653	p_chm->chm_pat_evt.type = eCHM_EVT_STATUS;
2654	p_chm->chm_pat_evt.id = eCHM_STATUS_PAT;
2655	p_chm->chm_pat_evt.ticks = 100;
2656	/* update only meet following condition */
2657	if (false == p_app->scan_in_progress && 0 == p_app->settings.num_channels) {
2658	/* user cancel the scan before getting any channel yet, bail out */
2659	}
2660	else {
2661	chm_post_app_event(p_chm,&p_chm->chm_pat_evt);
2662	//if (p_app->screen_id == eSCREEN_CH_SCAN_PROGRESS) {
2663	bos_sleep(200);
2664	//}
2665	}
2666	}
2667
2668	if (eRRT_AVAILABLE != p_app->settings.rrt_settings.rrt_status)
2669	p_chm->rrt_size = 0;
2670
2671	p_chm->cmd = eCHM_CANCEL;
2672	p_app->cur_ch_num = 0;
2673
2674	/* update p_info */
2675	if (p_app->settings.num_channels > 0) {
2676	bapp_ch_t *pch;
2677	chm_info_t *p_info;
2678
2679	for (num = 0; num < p_app->settings.num_channels; num++) {
2680	pch = &p_app->settings.ch[num];
2681	p_info = &p_chm->p_info[num];
2682
2683	p_info->source_id = pch->source_id;
2684	p_info->major = pch->major;
2685	p_info->minor = pch->minor;
2686	p_info->program_number = pch->program_num;
2687	memcpy(p_info->ch_name, p_info->ch_name, sizeof(pch->ch_name));
2688	p_info->got_vct = !pch->psi;
2689	}
2690	}
2691
2692	#ifdef ACB612
2693	isScanStatusFinish = true;
2694	#endif
2695	}
2696
2697	/*
2698	Summary:
2699	Initial or rescan of VSB channels
2700	Description:
2701	Scan for all available VSB channels.
2702	*/
2703
2704	static void chm_hunt(chm_mgr_t *p_chm)
2705	{
2706	bapp_t p_app = (bapp_t)p_chm->p_app;
2707
2708	chm_stop_decode(p_chm);
2709
2710	/* stop all streams */
2711	chm_stop_stream(p_chm,&(p_chm->chm_stream[CURR_CH]));
2712	chm_stop_stream(p_chm,&(p_chm->chm_stream[PREV_CH]));
2713	chm_stop_stream(p_chm,&(p_chm->chm_stream[NEXT_CH]));
2714
2715	p_app->scan_in_progress = true;
2716	chm_scan(p_chm);
2717
2718	/* channel scan done, all the channel map are added during scan time, so to update the channel map */
2719	p_chm->chm_pat_evt.type = eCHM_EVT_STATUS;
2720	p_chm->chm_pat_evt.id = eCHM_STATUS_CHMAP;
2721	/* to update channel map if changed */
2722	p_chm->chm_pat_evt.ticks = p_app->settings.num_channels ? 2 : 0;
2723	if (0 == p_app->settings.num_channels && false == p_app->scan_in_progress) {
2724	/* if no channel scanned and scan_in_progress is false, it should be cancelled by the user */
2725	/* bail out */
2726	}
2727	else
2728	chm_post_app_event(p_chm,&p_chm->chm_pat_evt);
2729	p_app->scan_in_progress = false;
2730
2731	p_chm->cmd = eCHM_CANCEL;
2732	bos_sleep(200);
2733
2734	p_chm->hunt_cnt++;
2735	}
2736
2737	/*
2738	Summary:
2739	Post an event the app queue to provide status.
2740	*/
2741
2742	static int chm_post_app_event_cb(chm_mgr_t p_chm, / Channel manager reference */
2743	chm_event_t p_event / Event to post to app queue */
2744	)
2745	{
2746	bapp_t p_app = (bapp_t)p_chm->p_app;
2747	bos_post_event(p_app->msg_queue,(b_event_t*)p_event);
2748	bos_sleep(10);
2749
2750	return 0;
2751	}
2752
2753	/*
2754	Summary:
2755	Post an event the app queue to provide status.
2756	*/
2757
2758	static int chm_post_app_event(chm_mgr_t p_chm, / Channel manager reference */
2759	chm_event_t p_event / Event to post to app queue */
2760	)
2761	{
2762	int result = chm_post_app_event_cb(p_chm,p_event);
2763
2764	return result;
2765	}
2766
2767	/******************************************************************************
2768	* INPUTS: context
2769	* OUTPUTS: none.
2770	* RETURNS: none
2771	* FUNCTION: message_callback
2772	* DESCRIPTION: Callback function normally called when a complete message has
2773	* been received and passed the filter criteria.
2774	******************************************************************************/
2775	void * chm_smessage_eas_callback(void * context, size_t size)
2776	{
2777	chm_mgr_t * p_chm = (chm_mgr_t*)context;
2778	bapp_t *p_app;
2779	TS_SCTE_18_header header; /* header structure */
2780	unsigned int timegpssec, event_end_time;
2781	unsigned short source_id;
2782	b_timeval cur;
2783	bool found_sourceid = false;
2784	size_t ex_size,i, j;
2785	uint8_t *pOffset;
2786	p_app = (bapp_t*)p_chm->p_app;
2787	int eas_ch_num = -1;
2788
2789	BDBG_WRN(("#### EAS Event %d ####", p_chm->eas_cnt));
2790	p_chm->eas_cnt++;
2791
2792	if (!p_app->power)
2793	{
2794	BDBG_WRN(("####EAS Event: Box in standby state: ignore. #### \n"));
2795	goto ExitFunc;
2796	}
2797
2798	if (TS_SCTE_18_getSectionHeader(p_chm->eas_buf, size, &header) != 0)
2799	{
2800	BDBG_ERR(("#### TS_SCTE_18_getSectionHeader failed ####\n"));
2801	goto ExitFunc;
2802	}
2803
2804	if (0 == header.alert_priority)
2805	{
2806	BDBG_MSG(("#### reset EAS sequence %d ####\n",header.sequence_number));
2807	/* establish a new sequence number */
2808	p_chm->sequence_number = header.sequence_number;
2809	/* eas reset, so don't check once get other alert priority */
2810	p_chm->eas_reset = true;
2811	goto ExitFunc;
2812	}
2813
2814	if (p_chm->sequence_number == header.sequence_number)
2815	{
2816	if (!p_chm->eas_reset) {
2817	BDBG_WRN(("#### EAS Event %d duplicate ####\n",header.sequence_number));
2818	/* the test stream also uses same sequence number all the time */
2819	goto ExitFunc;
2820	}
2821	}
2822
2823	if ((int8_t)header.alert_priority < SCTE_18_ALERT_PRIORITY)
2824	{
2825	BDBG_WRN(("#### EAS Event alert priority %d < %d, ignore.#### \n", header.alert_priority, SCTE_18_ALERT_PRIORITY));
2826	goto ExitFunc;
2827	}
2828
2829	if ((int8_t)header.alert_message_time_remaining < 0 \|\| header.alert_message_time_remaining > 120)
2830	{
2831	BDBG_WRN(("#### EAS Event alert_message_time_remaining %d out of range ####\n",header.alert_message_time_remaining));
2832	goto ExitFunc;
2833	}
2834	p_chm->sequence_number = header.sequence_number;
2835
2836	if (p_chm->EAS_event_ID == header.EAS_event_ID)
2837	{
2838	if (!p_chm->eas_reset) {
2839	/* same EAS message, but only time remaining changed */
2840	GETTIMEOFDAY(&cur);
2841	if (header.alert_message_time_remaining)
2842	p_app->eas_timeout = cur.tv_sec + header.alert_message_time_remaining;
2843	else
2844	p_app->eas_timeout = 0;
2845
2846	BDBG_MSG(("#### EAS Event %d already processed ####\n",header.EAS_event_ID));
2847	goto ExitFunc;
2848	}
2849	}
2850	/* new EAS message is distributed */
2851	p_chm->EAS_event_ID = header.EAS_event_ID;
2852	/* it is the point that we will do sanity check after here */
2853	p_chm->eas_reset = false;
2854
2855	if (0 == header.event_duration) {
2856	BDBG_WRN(("#### EAS Event event_duration set to infinity ####"));
2857	/RLQ, need to check what to do with infinity value as it may cause problem /
2858	header.event_duration = (uint16_t)(EAS_INFINITY / 60);
2859	}
2860	if (header.event_start_time && header.event_duration)
2861	{
2862	/* 15 mins to 100 hours */
2863	if (header.event_duration < 15 \|\| header.event_duration > 6000 )
2864	{
2865	if ((uint16_t)(EAS_INFINITY / 60) != header.event_duration) {
2866	BDBG_WRN(("#### EAS Event event_duration %d out of range ####\n",header.event_duration));
2867	goto ExitFunc;
2868	}
2869	}
2870	GETTIMEOFDAY(&cur);
2871	timegpssec = p_app->system_time + cur.tv_sec;
2872	event_end_time = header.event_start_time+(header.event_duration * 60);
2873
2874	if (event_end_time < timegpssec)
2875	{
2876	BDBG_WRN(("#### EAS Event has expired %d < %d, ignore.#### \n", event_end_time, timegpssec));
2877	goto ExitFunc;
2878	}
2879	}
2880
2881	/* if exception list existed, check to see if current channel is in exception list */
2882	if (header.exception_count)
2883	{
2884	BDBG_WRN(("#### EAS exception count = %d\n",header.exception_count));
2885	pOffset = TS_SCTE_18_getExpectionOffset((const char *)p_chm->eas_buf, &ex_size);
2886	if (pOffset)
2887	{
2888	chm_info_t *p_info;
2889	TS_SCTE_18_exception s;
2890
2891	for (i = 0; i < header.exception_count; i++)
2892	{
2893	if (TS_SCTE_18_getException(pOffset, i, &s))
2894	{
2895	BDBG_WRN(("#### EAS exception (%d,0x%04x,0x%04x)\n",s.in_band_reference,s.major_channel_number,s.minor_channel_number));
2896	for (j = 0; j < p_app->settings.num_channels; j++) {
2897	p_info = &p_chm->p_info[j];
2898
2899	if ((unsigned char)s.major_channel_number == p_info[j].major &&
2900	(unsigned short)s.minor_channel_number == p_info[j].minor) {
2901	if (s.in_band_reference) {
2902	BDBG_WRN(("#### 0x%04x.0x%04x in exception list, discard\n", s.major_channel_number, s.minor_channel_number));
2903	goto ExitFunc;
2904	} else
2905	{
2906	/* do we support OOB in ATSC? or do further check for source id within given major and minor? */
2907	BDBG_WRN(("#### OOB 0x%04x.0x%04x in exception list, discard\n",s.major_channel_number,s.minor_channel_number));
2908	goto ExitFunc;
2909	}
2910	}
2911	}
2912	}
2913	else {
2914	BDBG_WRN(("#### EAS TS_SCTE_18_getException %d failed\n",i));
2915	goto ExitFunc;
2916	}
2917	}
2918	}
2919	}
2920
2921	#if 0
2922	/* try details OOB source ID first */
2923	if (header.details_OOB_source_ID)
2924	{
2925	BDBG_WRN(("#### EAS Attempt to set details source ID = 0x%04x.#### \n", header.details_OOB_source_ID));
2926	source_id = header.details_OOB_source_ID;
2927	found_sourceid = ch_map_set(bapp_cur_ch_map(p_app),source_id);
2928	}
2929	#endif
2930	/* check if the EAS channel is in the channel map? */
2931	if (header.details_major_channel_number && header.details_minor_channel_number)
2932	{
2933	BDBG_WRN(("#### EAS Attempt to set major.minor [0x%04x.0x%04x] #### \n", header.details_major_channel_number, header.details_minor_channel_number));
2934	eas_ch_num = chm_find_match_channel(p_chm, header.details_major_channel_number,
2935	header.details_minor_channel_number, header.details_OOB_source_ID);
2936	if (eas_ch_num < 0)
2937	{
2938	/* try audio only */
2939	if (15 == header.alert_priority && header.audio_OOB_source_ID)
2940	{
2941	BDBG_WRN(("#### EAS Attempt to set audio source ID = 0x%04x.#### \n", header.audio_OOB_source_ID));
2942	if ((eas_ch_num = chm_find_match_channel(p_chm, header.details_major_channel_number, header.details_minor_channel_number, header.audio_OOB_source_ID)) < 0) {
2943	BDBG_WRN(("#### EAS Attempt to set audio source ID = 0x%04x failed.#### \n", header.audio_OOB_source_ID));
2944	/RLQ, if the channel is not in the channel map, just scroll EAS text if any /
2945	if (header.alert_text_length)
2946	goto SCROLL_ONLY;
2947	goto ExitFunc;
2948	}
2949	} else
2950	{
2951	BDBG_WRN(("#### EAS no details source ID available\n"));
2952	/RLQ/
2953	if (header.alert_text_length)
2954	goto SCROLL_ONLY;
2955	goto ExitFunc;
2956	}
2957	}
2958	found_sourceid = true;
2959	}
2960
2961	/* TODO until find a way to map the RF_channel and program_number to major/minor/source_id, then we can enable this part */
2962	#if 0
2963	/* Check for Channel Descriptor */
2964	if (!found_sourceid)
2965	{
2966	/* try channel description */
2967	TS_SCTE_18_in_band_channel_descriptor ib_channel_desc;
2968	pOffset = TS_SCTE_18_getDescriptorOffset((const char *)p_chm->eas_buf, &ex_size);
2969
2970	if (pOffset == NULL)
2971	{
2972	BDBG_WRN(("#### EAS Channel Descriptor not found #### \n"));
2973	goto ExitFunc;
2974	}
2975
2976	if (!TS_SCTE_18_getInBandChannelDescriptor(pOffset, &ib_channel_desc,ex_size))
2977	{
2978	BDBG_WRN(("#### EAS Channel Desc not found #### \n"));
2979	goto ExitFunc;
2980	}
2981	if (!ch_map_find_soure_id(bapp_cur_ch_map(p_app),
2982	(unsigned char)ib_channel_desc.exception_RF_channel,
2983	(unsigned short)ib_channel_desc.exception_program_number,
2984	&source_id))
2985	{
2986	BDBG_WRN(("#### EAS sourceID not found for ib channel desc [0x%04x.0x%04x] #### \n", ib_channel_desc.exception_RF_channel, ib_channel_desc.exception_program_number));
2987	goto ExitFunc;
2988	}
2989	}
2990	#endif
2991
2992	if ( ((header.location_code_count) < 1) \|\| ((header.location_code_count) > 31) )
2993	{
2994	BDBG_WRN(("#### EAS location code count invalid %d #### \n",header.location_code_count));
2995	//goto ExitFunc;
2996	} else
2997	{
2998	pOffset = TS_SCTE_18_getLocationOffset((const char *)p_chm->eas_buf, &size);
2999	if (pOffset)
3000	{
3001	TS_SCTE_18_location_code s;
3002	for (i = 0; i < header.location_code_count; i++)
3003	{
3004	if (TS_SCTE_18_getLocationCode(pOffset, i, &s))
3005	{
3006	if ( (((int8_t)s.state_code) < 0) \|\| ((s.state_code) > 99) \|\|
3007	(((int8_t)s.county_subdivision) < 0) \|\| ((s.county_subdivision) > 9) \|\|
3008	(((int8_t)s.county_code) < 0) \|\| ((s.county_code) > 999) )
3009	{
3010	BDBG_WRN(("#### EAS state code %d or subdivision %d country_code %d invalid#### \n",s.state_code, s.county_subdivision, s.county_code));
3011	goto ExitFunc;
3012	}
3013	} else
3014	{
3015	goto ExitFunc;
3016	}
3017	}
3018	} else
3019	{
3020	goto ExitFunc;
3021	}
3022	}
3023
3024	/* if we are here, then it is good to switch to EAS channel */
3025	SCROLL_ONLY:
3026	if ((eas_ch_num >= 0) \|\| header.alert_text_length)
3027	{
3028	BDBG_WRN(("#### EAS source ID = 0x%04x found (timeout %d secs).#### \n", source_id,header.alert_message_time_remaining));
3029	p_chm->chm_eas_evt.type = eCHM_EVT_EAS;
3030	p_chm->chm_eas_evt.ticks = (0 == header.alert_message_time_remaining) ? EAS_INFINITY : header.alert_message_time_remaining;
3031	p_chm->chm_eas_evt.id = eas_ch_num;
3032	p_chm->chm_eas_evt.data[0] = (eas_ch_num >= 0)? true : false;
3033	p_chm->eas_timer_started = true;
3034	memcpy(p_app->eas_buf, p_chm->eas_buf, size);
3035	p_app->eas_buf_size = size;
3036
3037	chm_post_app_event_cb(p_chm,&p_chm->chm_eas_evt);
3038	} else
3039	{
3040	BDBG_WRN(("#### EAS source ID = 0x%04x not found.#### \n", source_id));
3041	}
3042	ExitFunc:
3043	return(void*)p_chm->eas_buf;
3044	}
3045
3046	/*
3047	Summary:
3048	Stop the STT. return non-zero on failure
3049	*/
3050	static void chm_stt_stop(chm_mgr_t *p_chm)
3051	{
3052	if (NULL != p_chm->stt_msg)
3053	{
3054	if (b_ok != smessage_stop(p_chm->stt_msg))
3055	{
3056	BDBG_ERR(("%s:%d",__func__, __LINE__));
3057	return;
3058	}
3059	smessage_close(p_chm->stt_msg);
3060	p_chm->stt_msg = NULL;
3061	}
3062	}
3063
3064	/******************************************************************************
3065	* INPUTS: context
3066	* OUTPUTS: none.
3067	* RETURNS: none
3068	* FUNCTION: message_callback
3069	* DESCRIPTION: Callback function normally called when a complete message has
3070	* been received and passed the filter criteria.
3071	******************************************************************************/
3072
3073	void * chm_smessage_stt_callback(void * context, size_t size)
3074	{
3075	chm_mgr_t * p_chm;
3076	b_tm utc_time;
3077	b_timeval tv;
3078
3079	p_chm = (chm_mgr_t*)context;
3080
3081	p_chm->stt_cnt++;
3082
3083	PSIP_STT_getHeader(p_chm->stt_buf, &p_chm->stt);
3084	/* current time in seconds when STT was received */
3085	GETTIMEOFDAY(&tv);
3086	p_chm->sys_offset = tv.tv_sec;
3087	p_chm->sys_UTC_offset = p_chm->stt.GPS_UTC_offset;
3088
3089	/* Current UTC time according to STT */
3090	p_chm->sys_time = p_chm->stt.system_time - p_chm->stt.GPS_UTC_offset;
3091
3092	utctime(p_chm->sys_time,&utc_time);
3093
3094	/* Current UTC time according to STT */
3095	p_chm->time_evt.type = eCHM_EVT_TIME;
3096	p_chm->time_evt.system_time = p_chm->sys_time;
3097	p_chm->time_evt.system_offset = tv.tv_sec;
3098	p_chm->time_evt.utc_offset = p_chm->sys_UTC_offset;
3099	/* will see if we need to post the STT? */
3100	chm_post_app_event(p_chm,(chm_event_t*)&p_chm->time_evt);
3101
3102	utctime(p_chm->time_evt.system_time,&utc_time);
3103	BDBG_MSG(("STT UTC = %2d/%2d/%4d %2d:%2d:%2d\n",
3104	utc_time.tm_mon + 1,utc_time.tm_mday,utc_time.tm_year + 1980,
3105	utc_time.tm_hour,utc_time.tm_min,utc_time.tm_sec));
3106
3107	p_chm->got_stt = true;
3108
3109	return(void*)p_chm->stt_buf;
3110	}
3111
3112	/*
3113	Summary:
3114	Get the STT. return non-zero on failure
3115	*/
3116
3117	static int chm_get_stt(chm_mgr_t *p_chm)
3118	{
3119	int result = eCHM_ERR_FAILED, stt_size;
3120	b_tm utc_time;
3121	b_timeval tv;
3122
3123	smessage_stream_params_init(&p_chm->msg_params, NULL);
3124	p_chm->msg_params.band = p_chm->band;
3125	p_chm->msg_params.pid = (unsigned short)p_chm->network_pid;
3126	p_chm->msg_params.buffer_size = STT_BUF_LEN;
3127	stt_size = STT_BUF_LEN;
3128	p_chm->msg_params.filter.coef[0] = 0xCD;
3129	p_chm->msg_params.filter.mask[0] = 0x00;
3130	/* All PSIP tables have protocol_version which must be = 0 */
3131	p_chm->msg_params.filter.coef[8] = 0x00; /* protocol_version */
3132	p_chm->msg_params.filter.mask[8] = 0x00;
3133	if ((result = chm_getmessage(p_chm,p_chm->stt_buf,&stt_size, STT_TIMEOUT)) != 0)
3134	{
3135	BDBG_MSG(("Timeout waiting for STT\n"));
3136	return result;
3137	}
3138
3139	p_chm->stt_cnt++;
3140
3141	PSIP_STT_getHeader(p_chm->stt_buf, &p_chm->stt);
3142
3143	/* current time in seconds when STT was received */
3144	GETTIMEOFDAY(&tv);
3145	p_chm->sys_offset = tv.tv_sec;
3146	p_chm->sys_UTC_offset = p_chm->stt.GPS_UTC_offset;
3147
3148	/* Current UTC time according to STT */
3149	p_chm->sys_time = p_chm->stt.system_time - p_chm->stt.GPS_UTC_offset;
3150
3151	utctime(p_chm->sys_time,&utc_time);
3152
3153	/* Current UTC time according to STT */
3154	p_chm->time_evt.type = eCHM_EVT_TIME;
3155	p_chm->time_evt.system_time = p_chm->sys_time;
3156	p_chm->time_evt.system_offset = tv.tv_sec;
3157	p_chm->time_evt.utc_offset = p_chm->sys_UTC_offset;
3158	/* will see if we need to post the STT? */
3159	chm_post_app_event(p_chm,(chm_event_t*)&p_chm->time_evt);
3160
3161	utctime(p_chm->time_evt.system_time,&utc_time);
3162	BDBG_MSG(("STT UTC = %2d/%2d/%4d %2d:%2d:%2d\n",
3163	utc_time.tm_mon + 1,utc_time.tm_mday,utc_time.tm_year + 1980,
3164	utc_time.tm_hour,utc_time.tm_min,utc_time.tm_sec));
3165
3166	p_chm->got_stt = true;
3167
3168	return result;
3169	}
3170
3171	/*
3172	Summary:
3173	Start the STT message filtering. return non-zero on failure
3174	*/
3175
3176	static int chm_stt_start(
3177	chm_mgr_t p_chm, / Channel manager reference */
3178	unsigned short network_pid)
3179	{
3180	int cerr;
3181
3182	cerr = eCHM_ERR_OK;
3183	BDBG_MSG(("%s:%d (0x%04x)",__func__, __LINE__,network_pid));
3184
3185	chm_stt_stop(p_chm);
3186
3187	p_chm->stt_msg = smessage_open(smessage_format_psi);
3188	if (NULL == p_chm->stt_msg)
3189	{
3190	BDBG_ERR(("%s:%d",__FILE__, __LINE__));
3191	cerr = eCHM_ERR_FAILED;
3192	goto ExitFunc;
3193	}
3194
3195	smessage_stream_params_init(&p_chm->msg_params, NULL);
3196	p_chm->msg_params.band = p_chm->band;
3197	p_chm->msg_params.pid = (uint16_t)network_pid;
3198	p_chm->msg_params.filter.coef[0] = 0xCD;
3199	p_chm->msg_params.filter.mask[0] = 0x00;
3200	/* All PSIP tables have protocol_version which must be = 0 */
3201	p_chm->msg_params.filter.coef[8] = 0x00; /* protocol_version */
3202	p_chm->msg_params.filter.mask[8] = 0x00;
3203	p_chm->msg_params.buffer = p_chm->stt_buf;
3204	p_chm->msg_params.buffer_size = STT_BUF_LEN;
3205	/* processing is done in callback */
3206	p_chm->msg_params.data_ready_callback = chm_smessage_stt_callback;
3207	p_chm->msg_params.overflow = NULL;
3208	p_chm->msg_params.callback_context = (void *)p_chm;
3209
3210	if (b_ok != smessage_start(&p_chm->msg_params, p_chm->stt_msg))
3211	{
3212	BDBG_ERR(("%s:%d",__FILE__, __LINE__));
3213	cerr = eCHM_ERR_FAILED;
3214	}
3215	ExitFunc:
3216	return cerr;
3217	}
3218
3219	#ifdef DEBUG_RRT
3220	static void chm_output_rrt(chm_mgr_t *p_chm)
3221	{
3222	PSIP_RRT_header header;
3223	PSIP_RRT_dimension dim;
3224	PSIP_RRT_value val;
3225	int dim_idx,val_idx;
3226	char tmp_str[64];
3227
3228	if (p_chm->rrt_cnt <= 0)
3229	return;
3230
3231	PSIP_RRT_getHeader(p_chm->rrt_buf, &header);
3232	if (chm_process_mss(p_chm,header.p_rating_region_name_text,tmp_str,64) == 0)
3233	{
3234	BDBG_WRN(("RRT %8s",tmp_str));
3235	}
3236
3237	for (dim_idx = 0; dim_idx < header.dimensions_defined; ++dim_idx)
3238	{
3239	if (PSIP_RRT_getDimension(p_chm->rrt_buf,dim_idx,&dim) != BERR_SUCCESS)
3240	continue;
3241
3242	if (chm_process_mss(p_chm,dim.p_dimension_name_text,tmp_str,sizeof(tmp_str)) == 0)
3243	{
3244	BDBG_WRN((" RRT[%d] %8s(%d)",dim_idx,tmp_str,dim.graduated_scale));
3245	}
3246
3247	for (val_idx = 0; val_idx < dim.values_defined; ++val_idx)
3248	{
3249	if (PSIP_RRT_getValue(p_chm->rrt_buf,dim_idx,val_idx,&val) != BERR_SUCCESS)
3250	continue;
3251
3252	if (chm_process_mss(p_chm,val.p_rating_value_text,tmp_str,sizeof(tmp_str)) == 0)
3253	{
3254	BDBG_WRN((" RRT[%d,%d] %8s",dim_idx,val_idx,tmp_str));
3255	}
3256
3257	if (chm_process_mss(p_chm,val.p_abbrev_rating_value_text,tmp_str,sizeof(tmp_str)) == 0)
3258	{
3259	BDBG_WRN((" RRT[%d,%d] %8s",dim_idx,val_idx,tmp_str));
3260	}
3261	}
3262	}
3263	}
3264	#endif
3265
3266	/*
3267	* Summary:
3268	* Callback function normally called when a complete message has
3269	* been received and passed the filter criteria.
3270	*/
3271	static void * chm_smessage_rrt_callback(void * context, size_t size)
3272	{
3273	chm_mgr_t * p_chm = (chm_mgr_t*)context;
3274	bapp_t p_app = (bapp_t)p_chm->p_app;
3275	uint32_t crc;
3276
3277	PSIP_RRT_header header;
3278	b_timeval tv;
3279
3280	p_chm->rrt_cnt++;
3281
3282	GETTIMEOFDAY(&tv);
3283	p_chm->last_rrt = tv.tv_sec;
3284
3285	PSIP_RRT_getHeader(p_chm->rrt_buf, &header);
3286	crc = chm_section_crc(p_chm->rrt_buf, size);
3287
3288	//if ((header.rating_region == 1) \|\| ((size == p_app->settings.rrt_settings.rrt_size) && (memcmp(p_chm->rrt_buf,p_app->settings.rrt_settings.rrt, size) == 0)))
3289	if ((header.rating_region == 1) \|\| ((size == p_app->settings.rrt_settings.rrt_size) && (crc == p_chm->rrt_crc)))
3290	{
3291	BDBG_WRN(("RRTs region 1 or they match so don't update\n"));
3292	p_chm->last_rrt += (2 * 60);
3293	return(void*)p_chm->rrt_buf;
3294	}
3295	p_chm->rrt_crc = crc;
3296
3297	#ifdef DEBUG_RRT
3298	chm_output_rrt(p_chm); /* DEBUG ONLY */
3299	#endif
3300	p_chm->rrt_evt.type = eCHM_EVT_RRT;
3301	p_chm->rrt_evt.size = size;
3302	memcpy(p_chm->rrt_evt.rrt,p_chm->rrt_buf,size);
3303
3304	chm_post_app_event_cb(p_chm,(chm_event_t*)&p_chm->rrt_evt);
3305
3306	return(void*)p_chm->rrt_buf;
3307	}
3308
3309	/*
3310	Summary:
3311	Stop the RRT. return non-zero on failure
3312	*/
3313	static void chm_rrt_stop(chm_mgr_t *p_chm)
3314	{
3315	if (NULL != p_chm->rrt_msg)
3316	{
3317	if (b_ok != smessage_stop(p_chm->rrt_msg))
3318	{
3319	BDBG_ERR(("%s:%d",__FUNCTION__, __LINE__));
3320	return;
3321	}
3322	smessage_close(p_chm->rrt_msg);
3323	p_chm->rrt_msg = NULL;
3324	}
3325	}
3326
3327	/*
3328	Summary:
3329	Get the RRT. return non-zero on failure
3330	*/
3331	static int chm_rrt_start(chm_mgr_t *p_chm, unsigned short network_pid)
3332	{
3333	int cerr;
3334
3335	cerr = eCHM_ERR_OK;
3336	BDBG_MSG(("%s: (0x%04x)",__FUNCTION__, network_pid));
3337
3338	chm_rrt_stop(p_chm);
3339
3340	p_chm->rrt_msg = smessage_open(smessage_format_psi);
3341	if (NULL == p_chm->rrt_msg)
3342	{
3343	BDBG_ERR(("%s: get RRT failed",__func__));
3344	cerr = eCHM_ERR_FAILED;
3345	goto ExitFunc;
3346	}
3347	smessage_stream_params_init(&p_chm->msg_params, NULL);
3348	p_chm->msg_params.band = p_chm->band;
3349	p_chm->msg_params.pid = (uint16_t)network_pid;
3350	p_chm->msg_params.filter.coef[0] = 0xCA;
3351	p_chm->msg_params.filter.mask[0] = 0x00;
3352	p_chm->msg_params.buffer = p_chm->rrt_buf;
3353	p_chm->msg_params.buffer_size = RRT_BUF_LEN;
3354	/* processing is done in callback */
3355	p_chm->msg_params.data_ready_callback = chm_smessage_rrt_callback;
3356	p_chm->msg_params.overflow = NULL;
3357	p_chm->msg_params.callback_context = (void *)p_chm;
3358	if (b_ok != smessage_start(&p_chm->msg_params, p_chm->rrt_msg))
3359	{
3360	BDBG_ERR(("%s:%d",__FILE__, __LINE__));
3361	cerr = eCHM_ERR_FAILED;
3362	}
3363
3364	ExitFunc:
3365	return cerr;
3366	}
3367
3368	/*
3369	Summary:
3370	Tune to the given frequency.
3371	*/
3372	static int chm_tune_freq(chm_mgr_t *p_chm,unsigned int freq_hz)
3373	{
3374	bapp_t p_app = (bapp_t)p_chm->p_app;
3375	unsigned int tune_ticks;
3376
3377	BDBG_MSG(("%s frequency=%d, last_freq_hz=%d\n",__func__, freq_hz, p_chm->last_freq_hz));
3378
3379	if (p_chm->force_tune)
3380	{
3381	p_chm->last_freq_hz = 0;
3382	p_chm->force_tune = false;
3383	}
3384
3385	if (p_chm->last_freq_hz != freq_hz)
3386	{
3387	btuner_params_init(&p_chm->tuner_params, p_chm->tuner);
3388	p_chm->tuner_params.cancel_callback = chm_tune_cancel_callback;
3389	p_chm->tuner_params.cancel_callback_context = p_chm;
3390	p_chm->tuner_params.wait_for_lock = true;
3391
3392	BDBG_MSG(("Tune to frequency = %d",freq_hz));
3393
3394	timing_profile_start(p_app->ptp_tune);
3395	tune_ticks = bos_getticks();
3396	p_chm->band = btuner_tune(p_chm->tuner, freq_hz, &p_chm->tuner_params);
3397	tune_ticks = bos_getticks() - tune_ticks;
3398	timing_profile_stop(p_app->ptp_tune);
3399
3400	p_chm->status_evt.type = eCHM_EVT_STATUS;
3401	p_chm->status_evt.id = eCHM_STATUS_TUNE_MS;
3402	p_chm->status_evt.ticks = TICKS_TO_MS(tune_ticks);
3403	chm_post_app_event(p_chm,(chm_event_t*)&p_chm->status_evt);
3404
3405	if (p_chm->band < 0)
3406	{
3407	BDBG_MSG(("Tune failed (freq = %d)", freq_hz));
3408	p_chm->last_freq_hz = 0;
3409	/* Send message to app */
3410	chm_send_status(p_chm,freq_hz,false);
3411
3412	return eCHM_ERR_FAILED;
3413	}
3414	p_chm->last_freq_hz = freq_hz;
3415	} else
3416	{
3417	BDBG_MSG(("Already tuned to frequency = %d",freq_hz));
3418	}
3419	//RLQ, do it after calling start decode function since we don't want to switch task before channel change
3420	//chm_send_status(p_chm,freq_hz,true);
3421
3422	return eCHM_ERR_OK;
3423	}
3424
3425	/*
3426	Summary:
3427	Rotate audio pids.
3428	*/
3429
3430	static int chm_rotate_audio(chm_mgr_t *p_chm)
3431	{
3432	bapp_t p_app = (bapp_t)p_chm->p_app;
3433	bapp_ch_t *pch;
3434
3435	if (!p_chm->curr_stream \|\| !p_chm->curr_stream->stream)
3436	return eCHM_ERR_FAILED;
3437
3438	pch = &p_app->settings.ch[p_app->cur_ch_num];
3439
3440	BDBG_MSG(("%s from 0x%04x to 0x%04x\n",__func__,p_chm->mpeg[CURR_CH].audio[0].pid, pch->audio_pid[pch->cur_audio]));
3441
3442	if (p_app->audio && (p_chm->mpeg[CURR_CH].audio[0].pid != 0))
3443	{
3444	BDBG_WRN(("baudio_decode_stop 0x%04x\n",p_chm->mpeg[CURR_CH].audio[0].pid));
3445	baudio_decode_stop(p_app->audio);
3446	}
3447
3448	p_chm->mpeg[CURR_CH].audio[0].pid = pch->audio_pid[pch->cur_audio];
3449	if (p_app->audio)
3450	{
3451	if (p_chm->mpeg[CURR_CH].audio[0].pid != 0)
3452	{
3453	BDBG_WRN(("baudio_decode_start 0x%04x\n",p_chm->mpeg[CURR_CH].audio[0].pid));
3454	bstream_update_mpeg(p_chm->curr_stream->stream,&p_chm->mpeg[CURR_CH]);
3455	if (baudio_decode_start(p_app->audio, (void *)1, p_chm->curr_stream->stream))
3456	{
3457	BDBG_WRN(("baudio_decode_start failed\n"));
3458	return eCHM_ERR_FAILED;
3459	}
3460	}
3461	}
3462	return eCHM_ERR_OK;
3463	}
3464
3465	/*
3466	Summary:
3467	Open a stream given an mpeg program structure.
3468	*/
3469	static int chm_start_stream(chm_mgr_t p_chm, chm_stream_t p_stream,bstream_mpeg *p_mpeg)
3470	{
3471	BDBG_ASSERT(p_stream);
3472	BDBG_ASSERT(p_mpeg);
3473
3474	if (p_stream->stream)
3475	{
3476	bstream_close(p_stream->stream);
3477	p_stream->stream = NULL;
3478	}
3479
3480	p_stream->stream = bstream_open(p_chm->band,p_mpeg);
3481	if (p_stream->stream)
3482	{
3483	p_stream->freq_hz = p_chm->last_freq_hz;
3484	p_stream->pid = p_mpeg->video[0].pid;
3485	}
3486	return (p_stream->stream) ? eCHM_ERR_OK : eCHM_ERR_FAILED;
3487	}
3488
3489
3490	/*
3491	Summary:
3492	Close the stream.
3493	*/
3494	void chm_stop_stream(chm_mgr_t p_chm, chm_stream_t p_stream)
3495	{
3496	BDBG_ASSERT(p_stream);
3497
3498	if (p_stream->stream)
3499	{
3500	bstream_close(p_stream->stream);
3501	p_stream->stream = NULL;
3502	p_stream->pid = 0;
3503	}
3504	}
3505	/*
3506	Summary:
3507	Stop unused stream.
3508	*/
3509	static void chm_stop_unused_streams(chm_mgr_t *p_chm)
3510	{
3511	int mpeg_idx,stream_idx;
3512	bool match;
3513
3514	for (stream_idx = 0; stream_idx < BSETTOP_MAX_STREAMS; ++stream_idx)
3515	{
3516	match = false;
3517	for (mpeg_idx = 0; mpeg_idx < BSETTOP_MAX_STREAMS; ++mpeg_idx)
3518	{
3519	if (p_chm->mpeg[mpeg_idx].video[0].pid == p_chm->chm_stream[stream_idx].pid)
3520	{
3521	match = true;
3522	continue;
3523	}
3524	}
3525	if (!match)
3526	{
3527	chm_stop_stream(p_chm,&(p_chm->chm_stream[stream_idx]));
3528	}
3529	}
3530	}
3531	/*
3532	Summary:
3533	Find the stream with this PID .
3534	*/
3535	static chm_stream_t chm_find_stream(chm_mgr_t p_chm, unsigned short pid)
3536	{
3537	int stream_idx;
3538	BDBG_ASSERT(p_chm);
3539
3540	for (stream_idx = 0; stream_idx < BSETTOP_MAX_STREAMS; ++stream_idx)
3541	{
3542	if (pid == p_chm->chm_stream[stream_idx].pid)
3543	{
3544	return &(p_chm->chm_stream[stream_idx]);
3545	}
3546	}
3547	return NULL;
3548	}
3549	/*
3550	Summary:
3551	Find an unused stream.
3552	*/
3553	static chm_stream_t chm_find_unused_stream(chm_mgr_t p_chm)
3554	{
3555	int stream_idx;
3556	BDBG_ASSERT(p_chm);
3557
3558	for (stream_idx = 0; stream_idx < BSETTOP_MAX_STREAMS; ++stream_idx)
3559	{
3560	if (p_chm->chm_stream[stream_idx].stream == NULL)
3561	{
3562	return &(p_chm->chm_stream[stream_idx]);
3563	}
3564	}
3565	return NULL;
3566	}
3567
3568	/*
3569	Summary:
3570	Start audio and video decode.
3571	Description:
3572	Handle tuning to the current channel. Returns non-zero on failure.
3573	*/
3574	static int chm_start_decode(chm_mgr_t *p_chm, bool force_restart)
3575	{
3576	bapp_t p_app = (bapp_t)p_chm->p_app;
3577	chm_stream_t *tmp_stream;
3578
3579	if ((p_chm->mpeg[CURR_CH].audio[0].pid == 0x0000) && (p_chm->mpeg[CURR_CH].video[0].pid == 0x0000))
3580	{
3581	BDBG_WRN(("%s (0x%04x,0x%04x,0x%04x,%d) failed \n",
3582	__func__,p_chm->mpeg[CURR_CH].video[0].pid,p_chm->mpeg[CURR_CH].pcr_pid,
3583	p_chm->mpeg[CURR_CH].audio[0].pid,p_chm->band));
3584	return eCHM_ERR_FAILED;
3585	}
3586
3587	if (p_chm->mpeg[CURR_CH].video[0].pid == 0x0000)
3588	{
3589	bdecode_config cfg;
3590	bdecode_get_config(p_app->decode,&cfg);
3591	cfg.mute = 1;
3592	cfg.channel_change = 0;
3593	bdecode_set_config(p_app->decode,&cfg);
3594	}
3595
3596	/* Stop the current decode (but not the streams) */
3597	chm_stop_decode(p_chm);
3598
3599	/* Handle audio only decode */
3600	if (p_app->audio && (p_chm->mpeg[CURR_CH].audio[0].pid != 0x0000) && (p_chm->mpeg[CURR_CH].video[0].pid == 0x0000))
3601	{
3602	BDBG_WRN(("%s (0x%04x,0x%04x,0x%04x,%d) audio only decode \n",
3603	__func__,p_chm->mpeg[CURR_CH].video[0].pid,p_chm->mpeg[CURR_CH].pcr_pid,
3604	p_chm->mpeg[CURR_CH].audio[0].pid,p_chm->band));
3605
3606	chm_stop_stream(p_chm,&(p_chm->chm_stream[CURR_CH]));
3607	chm_stop_stream(p_chm,&(p_chm->chm_stream[PREV_CH]));
3608	chm_stop_stream(p_chm,&(p_chm->chm_stream[NEXT_CH]));
3609
3610	if (chm_start_stream(p_chm,&(p_chm->chm_stream[CURR_CH]),&(p_chm->mpeg[CURR_CH])))
3611	{
3612	BDBG_WRN(("chm_start_stream failed\n"));
3613	return eCHM_ERR_FAILED;
3614	}
3615
3616	p_chm->curr_stream = &(p_chm->chm_stream[CURR_CH]);
3617
3618	if (baudio_decode_start(p_app->audio, (void *)1, p_chm->curr_stream->stream))
3619	{
3620	BDBG_WRN(("baudio_decode_start failed\n"));
3621	return eCHM_ERR_FAILED;
3622	}
3623	p_chm->decoding_audio = true;
3624	return eCHM_ERR_OK;
3625	}
3626
3627	/* Check if all streams need to be restarted */
3628	if (force_restart)
3629	{
3630	chm_stop_stream(p_chm,&(p_chm->chm_stream[CURR_CH]));
3631	chm_stop_stream(p_chm,&(p_chm->chm_stream[PREV_CH]));
3632	chm_stop_stream(p_chm,&(p_chm->chm_stream[NEXT_CH]));
3633
3634	if (chm_start_stream(p_chm,&(p_chm->chm_stream[CURR_CH]),&(p_chm->mpeg[CURR_CH])))
3635	{
3636	BDBG_WRN(("chm_start_stream failed\n"));
3637	return eCHM_ERR_FAILED;
3638	}
3639
3640	p_chm->curr_stream = &(p_chm->chm_stream[CURR_CH]);
3641
3642	if (p_chm->mpeg[NEXT_CH].video[0].pid != 0x0000)
3643	{
3644	if (chm_start_stream(p_chm,&(p_chm->chm_stream[NEXT_CH]),&(p_chm->mpeg[NEXT_CH])))
3645	{
3646	BDBG_WRN(("chm_start_stream next failed\n"));
3647	}
3648	}
3649
3650	if (p_chm->mpeg[PREV_CH].video[0].pid != 0x0000)
3651	{
3652	if (chm_start_stream(p_chm,&(p_chm->chm_stream[PREV_CH]),&(p_chm->mpeg[PREV_CH])))
3653	{
3654	BDBG_WRN(("chm_start_stream prev failed\n"));
3655	}
3656	}
3657	}
3658	else
3659	{
3660	chm_stop_unused_streams(p_chm);
3661
3662	p_chm->curr_stream = chm_find_stream(p_chm,p_chm->mpeg[CURR_CH].video[0].pid);
3663
3664	if (p_chm->curr_stream == NULL)
3665	{
3666	if (chm_start_stream(p_chm,&(p_chm->chm_stream[CURR_CH]),&(p_chm->mpeg[CURR_CH])))
3667	{
3668	BDBG_WRN(("chm_start_stream current failed\n"));
3669	return eCHM_ERR_FAILED;
3670	}
3671	p_chm->curr_stream = &(p_chm->chm_stream[CURR_CH]);
3672	}
3673
3674	if (p_chm->mpeg[NEXT_CH].video[0].pid != 0x0000)
3675	{
3676	tmp_stream = chm_find_stream(p_chm,p_chm->mpeg[NEXT_CH].video[0].pid);
3677
3678	if (tmp_stream == NULL)
3679	{
3680	tmp_stream = chm_find_unused_stream(p_chm);
3681
3682	if (tmp_stream)
3683	{
3684	if (chm_start_stream(p_chm,tmp_stream,&(p_chm->mpeg[NEXT_CH])))
3685	{
3686	BDBG_WRN(("chm_start_stream next failed\n"));
3687	}
3688	}
3689	}
3690	}
3691
3692	if (p_chm->mpeg[PREV_CH].video[0].pid != 0x0000)
3693	{
3694	tmp_stream = chm_find_stream(p_chm,p_chm->mpeg[PREV_CH].video[0].pid);
3695
3696	if (tmp_stream == NULL)
3697	{
3698	tmp_stream = chm_find_unused_stream(p_chm);
3699
3700	if (tmp_stream)
3701	{
3702	if (chm_start_stream(p_chm,tmp_stream,&(p_chm->mpeg[PREV_CH])))
3703	{
3704	BDBG_WRN(("chm_start_stream next failed\n"));
3705	}
3706	}
3707	}
3708	}
3709	}
3710
3711	if (!p_chm->curr_stream)
3712	{
3713	BDBG_WRN(("%s current stream NULL\n",__func__));
3714	return eCHM_ERR_FAILED;
3715	}
3716
3717	BDBG_MSG(("%s(0x%04x,0x%04x,0x%04x,%d)\n",
3718	__func__,p_chm->mpeg[CURR_CH].video[0].pid,p_chm->mpeg[CURR_CH].pcr_pid,
3719	p_chm->mpeg[CURR_CH].audio[0].pid,p_chm->band));
3720
3721	timing_profile_start(p_app->ptp_first_pts);
3722	timing_profile_start(p_app->ptp_decode);
3723	if (bdecode_start(p_app->decode, p_chm->curr_stream->stream, p_app->window[0]))
3724	{
3725	BDBG_WRN(("bdecode_start failed\n"));
3726	return eCHM_ERR_FAILED;
3727	}
3728	p_chm->decoding_video = true;
3729
3730	if (p_app->audio && (p_chm->mpeg[CURR_CH].audio[0].pid != 0))
3731	{
3732	if (baudio_decode_start(p_app->audio, (void *)1, p_chm->curr_stream->stream))
3733	{
3734	BDBG_WRN(("baudio_decode_start failed\n"));
3735	return eCHM_ERR_FAILED;
3736	}
3737	p_chm->decoding_audio = true;
3738	}
3739	return eCHM_ERR_OK;
3740	}
3741	/*
3742	Summary:
3743	Stop audio and video decode.
3744	*/
3745	static int chm_stop_decode(chm_mgr_t *p_chm)
3746	{
3747	bapp_t p_app = (bapp_t)p_chm->p_app;
3748
3749	chm_eas_stop(p_chm);
3750
3751	if (p_app->decode && p_chm->decoding_video)
3752	bdecode_stop(p_app->decode);
3753	if (p_app->audio && p_chm->decoding_audio)
3754	baudio_decode_stop(p_app->audio);
3755	p_chm->decoding_video = false;
3756	p_chm->decoding_audio = false;
3757
3758	return 0;
3759	}
3760
3761	/*
3762	Summary:
3763	To check if adjacent channel (prev or next have same pids as current, and it yes, don't set them
3764	Description:
3765	To check if adjacent channel (prev or next have same pids as current, and it yes, don't set them
3766
3767	*/
3768	static int chm_pids_duplicated(chm_mgr_t p_chm, bapp_ch_t cur_pch, bapp_ch_t *cmp_pch)
3769	{
3770	/* some adjacent channels have same pids as current, which will cause lost audio due to duplication and XPT will be failed */
3771	/* e.g 11.2 -> 13.1 in Mexico City has same pids on PCR and audio */
3772	if (cur_pch->pcr_pid) {
3773	if (cmp_pch->pcr_pid == cur_pch->pcr_pid \|\|
3774	cmp_pch->video_pid == cur_pch->pcr_pid \|\| cmp_pch->audio_pid[cmp_pch->cur_audio] == cur_pch->pcr_pid)
3775	return true;
3776	}
3777	if (cur_pch->video_pid) {
3778	if (cmp_pch->pcr_pid == cur_pch->video_pid \|\|
3779	cmp_pch->video_pid == cur_pch->video_pid \|\| cmp_pch->audio_pid[cmp_pch->cur_audio] == cur_pch->video_pid)
3780	return true;
3781	}
3782	if (cur_pch->audio_pid[cur_pch->cur_audio]) {
3783	if (cmp_pch->pcr_pid == cur_pch->audio_pid[cur_pch->cur_audio] \|\|
3784	cmp_pch->video_pid == cur_pch->audio_pid[cur_pch->cur_audio] \|\|
3785	cmp_pch->audio_pid[cmp_pch->cur_audio] == cur_pch->audio_pid[cur_pch->cur_audio])
3786	return true;
3787	}
3788	return false;
3789	}
3790
3791	/*
3792	Summary:
3793	Configure mpeg with current video and audio pids
3794	Description:
3795	Tune to the current frequency and get the VCT. Returns non-zero on failure.
3796	*/
3797
3798	static int chm_config_mpeg(chm_mgr_t p_chm, bapp_ch_t pch)
3799	{
3800	bapp_ch_t *tmp_pch;
3801	bapp_t p_app = (bapp_t)p_chm->p_app;
3802	memset(&(p_chm->mpeg[CURR_CH]),0,sizeof(bstream_mpeg));
3803	memset(&(p_chm->mpeg[PREV_CH]),0,sizeof(bstream_mpeg));
3804	memset(&(p_chm->mpeg[NEXT_CH]),0,sizeof(bstream_mpeg));
3805
3806	p_chm->mpeg[CURR_CH].pcr_pid = pch->pcr_pid;
3807	p_chm->mpeg[CURR_CH].video[0].pid = pch->video_pid;
3808	p_chm->mpeg[CURR_CH].video[0].format = pch->video_type;
3809	#if 0
3810	/* if always reset to audio same as language */
3811	p_chm->mpeg[CURR_CH].audio[0].pid = pch->audio_pid[p_app->lang] ? pch->audio_pid[p_app->lang] : pch->audio_pid[pch->cur_audio];
3812	p_chm->mpeg[CURR_CH].audio[0].format = pch->audio_type[p_app->lang] ? pch->audio_type[p_app->lang] : pch->audio_type[pch->cur_audio];
3813	#else
3814	/* if follows the user change */
3815	p_chm->mpeg[CURR_CH].audio[0].pid = pch->audio_pid[pch->cur_audio] ? pch->audio_pid[pch->cur_audio] : pch->audio_pid[p_app->lang];
3816	p_chm->mpeg[CURR_CH].audio[0].format = pch->audio_type[pch->cur_audio] ? pch->audio_type[pch->cur_audio] : pch->audio_type[p_app->lang];
3817	#endif
3818	if (p_chm->mpeg[CURR_CH].audio[0].pid == 0)
3819	{
3820	BDBG_WRN(("### Current audio PID is zero ###\n"));
3821	}
3822
3823	if (chm_ch_set_next(p_chm, &tmp_pch))
3824	{
3825	p_chm->mpeg[NEXT_CH].video[0].pid = tmp_pch->video_pid;
3826	p_chm->mpeg[NEXT_CH].video[0].format = tmp_pch->video_type;
3827	p_chm->mpeg[NEXT_CH].pcr_pid = tmp_pch->pcr_pid;
3828	if (tmp_pch->audio_pid[p_app->lang]) {
3829	p_chm->mpeg[NEXT_CH].audio[0].pid = tmp_pch->audio_pid[p_app->lang];
3830	p_chm->mpeg[NEXT_CH].audio[0].format = tmp_pch->audio_type[p_app->lang];
3831	}
3832	else {
3833	p_chm->mpeg[NEXT_CH].audio[0].pid = tmp_pch->audio_pid[tmp_pch->cur_audio];
3834	p_chm->mpeg[NEXT_CH].audio[0].format = tmp_pch->audio_type[tmp_pch->cur_audio];
3835	}
3836	if (chm_pids_duplicated(p_chm, pch, tmp_pch)) {
3837	BDBG_WRN(("%s pids duplicated",__func__));
3838	p_chm->mpeg[NEXT_CH].pcr_pid = 0;
3839	p_chm->mpeg[NEXT_CH].video[0].pid = 0;
3840	p_chm->mpeg[NEXT_CH].audio[0].pid = 0;
3841
3842	}
3843	}
3844
3845	if (chm_ch_set_prev(p_chm, &tmp_pch))
3846	{
3847	p_chm->mpeg[PREV_CH].video[0].pid = tmp_pch->video_pid;
3848	p_chm->mpeg[PREV_CH].video[0].format = tmp_pch->video_type;
3849	p_chm->mpeg[PREV_CH].pcr_pid = tmp_pch->pcr_pid;
3850	if (tmp_pch->audio_pid[p_app->lang]) {
3851	p_chm->mpeg[PREV_CH].audio[0].pid = tmp_pch->audio_pid[p_app->lang];
3852	p_chm->mpeg[PREV_CH].audio[0].format = tmp_pch->audio_type[p_app->lang];
3853	}
3854	else {
3855	p_chm->mpeg[PREV_CH].audio[0].pid = tmp_pch->audio_pid[tmp_pch->cur_audio];
3856	p_chm->mpeg[PREV_CH].audio[0].format = tmp_pch->audio_type[tmp_pch->cur_audio];
3857	}
3858	if (chm_pids_duplicated(p_chm, pch, tmp_pch)) {
3859	BDBG_WRN(("%s pids duplicated",__func__));
3860	p_chm->mpeg[PREV_CH].pcr_pid = 0;
3861	p_chm->mpeg[PREV_CH].video[0].pid = 0;
3862	p_chm->mpeg[PREV_CH].audio[0].pid = 0;
3863
3864	}
3865	}
3866	//TODO, check audio pid and type for giving language
3867	return 0;
3868	}
3869
3870	/*
3871	Summary:
3872	Tune to the current frequency and enter steady channel processing state..
3873	Description:
3874	Tune to the current frequency and enter steady channel processing state..
3875	*/
3876	int chm_tune(chm_mgr_t *p_chm)
3877	{
3878	bapp_t p_app = (bapp_t)p_chm->p_app;
3879	int result = eCHM_ERR_FAILED;
3880	bool force_restart = false;
3881	bapp_ch_t *pch;
3882	int freq;
3883	uint16_t apid;
3884	bresult rc = b_ok;
3885
3886	if (chm_check_cancel(p_chm))
3887	{
3888	BDBG_WRN(("%s cancel detected at line %d\n",__func__,__LINE__));
3889	return eCHM_ERR_CANCELED;
3890	}
3891
3892	if (!p_app->settings.num_channels)
3893	return result;
3894
3895	chm_stop_filter_monitoring(p_chm, eCHM_MSG_FILTER_RRT \| eCHM_MSG_FILTER_EAS);
3896
3897	chm_clear_current(p_chm);
3898
3899	/* check frequency to tune */
3900	rc = bos_acquire_mutex(&p_chm->mutex,CHM_MUTEX_TIMEOUT);
3901	if (b_ok != rc) {
3902	BDBG_WRN(("####%s bos_acquire_mutex timeout###",__func__));
3903	}
3904	p_chm->cur_ch_num = p_app->cur_ch_num;
3905	p_app->cur_ch = p_app->settings.ch[p_app->cur_ch_num];
3906	if (b_ok == rc) {
3907	bos_release_mutex(&p_chm->mutex);
3908	}
3909	pch = &p_app->cur_ch;
3910
3911	freq = pch->frequency_khz * 1000;
3912	force_restart = (freq == p_chm->last_freq_hz) ? false : true;
3913
3914	if (force_restart)
3915	chm_stop_decode(p_chm);
3916
3917	if (chm_tune_freq(p_chm, freq) != 0)
3918	{
3919	BDBG_MSG(("%s tune frequency %d failed", __func__, freq));
3920	return eCHM_ERR_FAILED;
3921	}
3922
3923	if (chm_check_cancel(p_chm))
3924	{
3925	BDBG_WRN(("%s cancel detected at line %d\n",__func__,__LINE__));
3926	return eCHM_ERR_CANCELED;
3927	}
3928
3929	apid = chm_check_audio(p_chm, pch);
3930	/* if no pids exist get them */
3931	if ((0 == pch->video_pid) && (0 == apid) && (0 == pch->pcr_pid))
3932	{
3933	BDBG_WRN(("%s no PIDS\n",__func__));
3934	return result;
3935	}
3936	timing_profile_start(p_app->ptp_psi);
3937	/* Do not start decode if PIDs are all 0. Doing so can prevent SI filtering from operating correctly. */
3938	if (pch->video_pid \|\| apid \|\| (0 != pch->pcr_pid))
3939	{
3940	chm_config_mpeg(p_chm,pch);
3941	if ((result = chm_start_decode(p_chm,force_restart)) != 0)
3942	{
3943	BDBG_WRN(("chm_start_decode failed\n"));
3944	timing_profile_stop(p_app->ptp_psi);
3945	return result;
3946	}
3947	}
3948	timing_profile_stop(p_app->ptp_psi);
3949
3950	if (result == 0)
3951	{
3952	p_chm->pmt_crc = p_chm->pat_crc = 0;
3953	/* for SAP handling */
3954	p_app->num_sap = pch->num_audio;
3955	p_app->current_sap = pch->cur_audio;
3956	chm_make_current(p_chm, &p_chm->p_info[p_app->cur_ch_num]);
3957
3958	/* start decode success so transition to info acquire state */
3959	p_chm->cmd = eCHM_INFO;
3960	/* alwasy get STT in case it is recorded source */
3961	p_chm->state = eCHM_GET_STT;
3962	/* we use this count */
3963	p_chm->mgt_cnt = 0;
3964	p_chm->got_eit = false;
3965	/* we use this to track ETT */
3966	p_chm->got_ett = false;
3967	/* have not check PAT/PMT yet */
3968	p_chm->first_pat_pmt = false;
3969
3970	if (0 == p_app->settings.time_zone) {
3971	//p_chm->local_time_source = eTS_NONE;
3972	}
3973
3974	chm_start_filter_monitoring(p_chm, eCHM_MSG_FILTER_EAS);
3975	p_chm->eas_cnt = 0;
3976	/* use this variable instead of eas_cnt to track new eas message */
3977	p_chm->eas_reset = true;
3978	}
3979
3980	/* RLQ */
3981	chm_send_status(p_chm,freq,true);
3982
3983	return result;
3984	}
3985
3986	/*
3987	Summary:
3988	Do a tune for the purpose of checking the signal strength.
3989	*/
3990	int chm_check_signal(chm_mgr_t *p_chm)
3991	{
3992	int result = eCHM_ERR_FAILED;
3993	//btuner_status status;
3994	bapp_t p_app = (bapp_t)p_chm->p_app;
3995	unsigned int freq_hz = 0;
3996
3997	if (chm_check_cancel(p_chm))
3998	return eCHM_ERR_CANCELED;
3999
4000	#if 0
4001	freq_hz = p_app->cur_ch.frequency_khz * 1000;
4002
4003	if (chm_tune_freq(p_chm, freq_hz) != 0)
4004	{
4005	p_chm->signal_evt.type = eCHM_EVT_SIGNAL;
4006	p_chm->signal_evt.power = 0;
4007	p_chm->signal_evt.SNR = 0;
4008	p_chm->signal_evt.freq_hz = freq_hz;
4009	p_chm->signal_evt.lock = 0;
4010	p_chm->signal_evt.signal_quality = 0;
4011	chm_post_app_event(p_chm,(chm_event_t*)&p_chm->signal_evt);
4012	return result;
4013	}
4014	#endif
4015
4016	if (chm_check_cancel(p_chm))
4017	return result;
4018
4019	if (btuner_get_status(p_chm->tuner,&p_app->tuner_status) == b_ok)
4020	{
4021	p_chm->signal_evt.type = eCHM_EVT_SIGNAL;
4022	p_chm->signal_evt.power = p_app->tuner_status.power;
4023	p_chm->signal_evt.SNR = p_app->tuner_status.snr;
4024	p_chm->signal_evt.freq_hz = freq_hz;
4025	p_chm->signal_evt.lock = p_app->tuner_status.lock;
4026	p_chm->signal_evt.signal_quality = p_app->tuner_status.PreRS;
4027	chm_post_app_event(p_chm,(chm_event_t*)&p_chm->signal_evt);
4028	}
4029
4030	return result;
4031	}
4032
4033	/*
4034	Summary:
4035	Start EAS monitoring..
4036	*/
4037	static int chm_eas_start(chm_mgr_t *p_chm, unsigned short network_pid)
4038	{
4039	int cerr = eCHM_ERR_OK;
4040
4041	chm_eas_stop(p_chm);
4042
4043	p_chm->eas_msg = smessage_open(smessage_format_psi);
4044	if (NULL == p_chm->eas_msg)
4045	{
4046	BDBG_ERR(("%s:%d",__FILE__, __LINE__));
4047	cerr = eCHM_ERR_FAILED;
4048	goto ExitFunc;
4049	}
4050	smessage_stream_params_init(&p_chm->msg_params, NULL);
4051	p_chm->msg_params.band = p_chm->band;
4052	p_chm->msg_params.pid = 0x1ffb;
4053	p_chm->msg_params.filter.coef[0] = 0xD8;
4054	p_chm->msg_params.filter.mask[0] = 0x00;
4055	//p_chm->msg_params.filter.excl[0] = 0xff;
4056	/* All PSIP tables have protocol_version which must be = 0 */
4057	p_chm->msg_params.filter.coef[8] = 0x00; /* protocol_version */
4058	p_chm->msg_params.filter.mask[8] = 0x00;
4059	p_chm->msg_params.buffer = p_chm->eas_buf;
4060	p_chm->msg_params.buffer_size = EAS_BUF_LEN;
4061	/* processing is done in callback */
4062	p_chm->msg_params.data_ready_callback = chm_smessage_eas_callback;
4063	p_chm->msg_params.overflow = NULL;
4064	p_chm->msg_params.callback_context = (void *)p_chm;
4065	if (b_ok != smessage_start(&p_chm->msg_params, p_chm->eas_msg))
4066	{
4067	BDBG_ERR(("%s:%d",__FILE__, __LINE__));
4068	cerr = eCHM_ERR_FAILED;
4069	}
4070	p_chm->eas_timer_started = false;
4071
4072	ExitFunc:
4073	return cerr;
4074	}
4075
4076	/*
4077	Summary:
4078	to start filter monitoring
4079	*/
4080	void chm_start_filter_monitoring(chm_mgr_t *p_chm, chm_msg_filter_t which)
4081	{
4082	if (which & eCHM_MSG_FILTER_STT)
4083	chm_stt_start(p_chm,p_chm->network_pid);
4084	if (which & eCHM_MSG_FILTER_RRT)
4085	chm_rrt_start(p_chm,p_chm->network_pid);
4086	if (which & eCHM_MSG_FILTER_MGT)
4087	chm_mgt_start(p_chm,p_chm->network_pid);
4088	if (which & eCHM_MSG_FILTER_EAS)
4089	chm_eas_start(p_chm,p_chm->network_pid);
4090	}
4091
4092	/*
4093	Summary:
4094	to stop filter monitoring
4095	*/
4096	void chm_stop_filter_monitoring(chm_mgr_t *p_chm, chm_msg_filter_t which)
4097	{
4098	if (which & eCHM_MSG_FILTER_STT)
4099	chm_stt_stop(p_chm);
4100	if (which & eCHM_MSG_FILTER_RRT)
4101	chm_rrt_stop(p_chm);
4102	if (which & eCHM_MSG_FILTER_MGT)
4103	chm_mgt_stop(p_chm);
4104	if (which & eCHM_MSG_FILTER_EAS)
4105	chm_eas_stop(p_chm);
4106	}
4107
4108	/*
4109	* This routine will return valid wide_aspect_ratio for given channel's current digital caption service
4110	*
4111	* Return:
4112	* true if has valid wide_aspect_ratio for given channel's current digital caption service
4113	* false if not
4114	*/
4115	bool chm_has_valid_cc_service(chm_mgr_t p_chm, bool wide_aspect_ratio)
4116	{
4117	bapp_t p_app = (bapp_t)p_chm->p_app;
4118	uint32_t utc_time;
4119
4120	/* if not get STT */
4121	if (eCHM_ERR_OK != chm_get_utctime(p_chm, &utc_time))
4122	return false;
4123
4124	utc_time += p_chm->stt.GPS_UTC_offset;
4125	/* if now match current time, then we have valid wide_aspect_ratio information */
4126	if ((p_app->captions_basic > 0) &&
4127	((utc_time >= (p_chm->cur_info.eit_info[EIT_CURRENT].start_time) &&
4128	(utc_time <= (p_chm->cur_info.eit_info[EIT_CURRENT].start_time + p_chm->cur_info.eit_info[EIT_CURRENT].length))))) {
4129	*wide_aspect_ratio = p_chm->cur_info.eit_info[EIT_CURRENT].cc_service[p_app->captions_basic - 1].wide_aspect_ratio;
4130	return true;
4131	}
4132
4133	return false;
4134	}
4135
4136	/*
4137	* This routine is used to check if there is valid EIT or not.
4138	*
4139	* Return:
4140	* true if current program is completed
4141	* false otherwise
4142	*/
4143	bool chm_check_program_end_time(chm_mgr_t *p_chm)
4144	{
4145	uint32_t utc_time;
4146	unsigned int temp1,temp2;
4147	bool isTimeToTrue = false;
4148	static unsigned int old_time,Cnt_time;
4149	/* if got STT */
4150	if (eCHM_ERR_OK == chm_get_utctime(p_chm, &utc_time)) {
4151	if (p_chm->cur_info.eit_info[EIT_CURRENT].start_time && p_chm->cur_info.eit_info[EIT_CURRENT].length) {
4152	utc_time += p_chm->stt.GPS_UTC_offset;
4153
4154	temp1 = (p_chm->cur_info.eit_info[EIT_NEXT].start_time);
4155	temp2 = (p_chm->cur_info.eit_info[EIT_CURRENT].start_time + p_chm->cur_info.eit_info[EIT_CURRENT].length);
4156
4157	if (utc_time >= temp1)
4158	{
4159	isTimeToTrue = true;
4160	}
4161
4162	if (utc_time >= temp2)
4163	{
4164	isTimeToTrue = true;
4165	}
4166
4167	}
4168	}
4169
4170	if(isTimeToTrue)
4171	{
4172	if(Cnt_time == 0)
4173	{
4174	old_time = utc_time;
4175	Cnt_time = 1;
4176	}
4177	if(utc_time != 0 && old_time != 0)
4178	Cnt_time += (utc_time -old_time);
4179
4180	old_time = utc_time;
4181	}
4182	else
4183	{
4184	Cnt_time = 0;
4185	old_time = utc_time;
4186	}
4187
4188	if(Cnt_time > 6)
4189	{
4190	Cnt_time = 0;
4191	old_time = utc_time;
4192	return true;
4193	}
4194	return false;
4195	}
4196
4197	/*
4198	* This routine is used to check if there is a need to update MGT and its associated tables
4199	*
4200	* Return:
4201	* true if need
4202	* false if not
4203	*/
4204	static bool chm_need_mgt_update(chm_mgr_t *p_chm)
4205	{
4206	uint32_t utc_time;
4207	bool need_update;
4208	bapp_t p_app = (bapp_t)p_chm->p_app;
4209
4210	/* if not got STT yet */
4211	if (eCHM_ERR_OK != chm_get_utctime(p_chm, &utc_time))
4212	return false;
4213
4214	utc_time += p_chm->stt.GPS_UTC_offset;
4215	/* if now does not match or have not get the ETT, then need MGT update */
4216	need_update = (utc_time >= (p_chm->cur_info.eit_info[EIT_CURRENT].start_time + p_chm->cur_info.eit_info[EIT_CURRENT].length));
4217	/* check if current setting is end of program? */
4218	if (2 == p_app->settings.auto_power && need_update) {
4219	/* make sure current is valid */
4220	if (p_chm->cur_info.eit_info[EIT_CURRENT].start_time && p_chm->cur_info.eit_info[EIT_CURRENT].length) {
4221	/* TODO confirm the logic if the user change channel around transition time? */
4222	if (p_chm->got_eit && (p_chm->mgt_cnt > 0)) {
4223	/* current program is end, don't update to new EIT so that is can be powered off as expected */
4224	need_update = false;
4225	}
4226	}
4227	}
4228	/* don't check program desc here as we have to deal with end of program case */
4229	//need_update \|= (0 == strlen(p_chm->cur_info.eit_info[EIT_CURRENT].prog_desc));
4230	return need_update;
4231	}
4232
4233	/*
4234	* Summary:
4235	* Get channel detailed program info.
4236	* Description:
4237	* Get channel detailed program info.
4238	* Returns non-zero on failure.
4239	* */
4240	static int chm_get_prog_details(chm_mgr_t *p_chm)
4241	{
4242	bapp_t p_app = (bapp_t)p_chm->p_app;
4243	chm_state_t orig_state;
4244	int result = 0;
4245
4246	//BDBG_MSG(("CHM State %s ",s_chm_state[p_chm->state]));
4247
4248	/* check it in case we tune to a channel from CLI */
4249	if (p_app->settings.num_channels < 1) {
4250	return 0;
4251	}
4252
4253	orig_state = p_chm->state;
4254
4255	if (chm_check_cancel(p_chm))
4256	return result;
4257
4258	switch (p_chm->state)
4259	{
4260	case eCHM_GET_STT:
4261	chm_get_stt(p_chm);
4262	p_chm->state = eCHM_GET_VCT;
4263	#ifdef CHECK_PROGRAM
4264	/* workaround for the channels that programed wrong pcr_pid */
4265	chm_check_program(p_chm);
4266	p_chm->first_pat_pmt = true;
4267	p_chm->state = eCHM_GET_VCT;
4268	#endif
4269	break;
4270
4271	case eCHM_GET_VCT:
4272	/* if PSI scan, don't check VCT */
4273	if (p_app->settings.ch[p_chm->cur_ch_num].psi) {
4274	p_chm->state = eCHM_PROG_IDLE;
4275	break;
4276	}
4277	if (p_chm->local_time_source == eTS_NONE) {
4278	/* force to check VCT again until we get local_time_source */
4279	p_chm->p_info[p_chm->cur_ch_num].got_vct = false;
4280	p_chm->got_vct = false;
4281	}
4282	if (!p_chm->p_info[p_chm->cur_ch_num].got_vct) {
4283	/* TODO using callback to process VCT to reduce channel change time */
4284	result = chm_get_vct(p_chm, &p_chm->p_info[p_chm->cur_ch_num]);
4285	#ifdef CHECK_PROGRAM
4286	if (eCHM_ERR_TIMEOUT == result && !p_chm->first_pat_pmt) {
4287	p_chm->first_pat_pmt = true;
4288	chm_check_program(p_chm);
4289	/* chm_check_program will change state if get pat/pmt successfully, so reset the state */
4290	p_chm->state = eCHM_GET_VCT;
4291	}
4292	#endif
4293	}
4294	else
4295	p_chm->state = eCHM_GET_MGT;
4296	break;
4297
4298	case eCHM_GET_MGT:
4299	if (chm_need_mgt_update(p_chm)) {
4300	p_chm->got_ett = 0;
4301	p_chm->p_info->eit_info[EIT_CURRENT].prog_desc[0] = 0;
4302	result = chm_get_mgt(p_chm);
4303	}
4304	else {
4305	/* if just missing program descriptor, then just update ETT */
4306	if (0 == strlen(p_chm->cur_info.eit_info[EIT_CURRENT].prog_desc)) {
4307	p_chm->got_ett = false;
4308	result = chm_get_mgt(p_chm);
4309	if (eCHM_ERR_OK == result) {
4310	/* just check ETT entry */
4311	p_chm->mgt_state = eMGT_ETT;
4312	}
4313	}
4314	else {
4315	result = eCHM_ERR_OK;
4316	p_chm->state = eCHM_PROG_IDLE;
4317	}
4318	}
4319	#ifdef CHECK_PROGRAM
4320	if (eCHM_ERR_TIMEOUT == result && !p_chm->first_pat_pmt) {
4321	p_chm->first_pat_pmt = true;
4322	chm_check_program(p_chm);
4323	/* chm_check_program will change state if get pat/pmt successfully, so reset the state */
4324	p_chm->state = eCHM_GET_MGT;
4325	}
4326	#endif
4327	break;
4328
4329	case eCHM_PROCESS_MGT:
4330	if (eMGT_EIT == p_chm->mgt_state) {
4331	if (chm_process_mgt(p_chm, p_chm->mgt_buf,p_chm->mgt_size,&p_chm->p_info[p_chm->cur_ch_num],false,true) != 0)
4332	{
4333	BDBG_MSG(("Failed to process EIT"));
4334	p_chm->state = eCHM_PROG_IDLE;
4335	break;
4336	}
4337	else {
4338	/* we should get the valid EIT with cc_service information, update wide_aspect_ratio information */
4339	bapp_set_wide_aspect_ratio(p_app);
4340	}
4341	}
4342	if (eMGT_ETT == p_chm->mgt_state) {
4343	if (chm_process_mgt(p_chm, p_chm->mgt_buf,p_chm->mgt_size,&p_chm->p_info[p_chm->cur_ch_num],true,true) != 0)
4344	{
4345	BDBG_WRN(("Failed to process ETT"));
4346	p_chm->state = eCHM_PROG_IDLE;
4347	}
4348	}
4349	/* a patch to fix no audio issue that no audio info given in VCT */
4350	if ((1 == p_chm->mgt_cnt) && (0 == p_app->cur_ch.num_audio)) {
4351	/* check PAT/PMT immediately */
4352	p_chm->state = eCHM_PROG_IDLE;
4353	}
4354
4355	/* if transited to IDLE means we got the EIT and most likely the ETT */
4356	if (eCHM_PROG_IDLE == p_chm->state) {
4357	chm_make_current(p_chm, &p_chm->p_info[p_chm->cur_ch_num]);
4358	}
4359	#ifndef NO_VCHIP
4360	/* indicate that we get eit information, so update current to so that it can update the Banner screen as well */
4361	if (p_app->psip_rating_str[0]) {
4362	memcpy(&p_chm->p_info[p_chm->cur_ch_num].psip_rating_str, &p_app->psip_rating_str, sizeof(p_app->psip_rating_str));
4363	chm_make_current(p_chm, &p_chm->p_info[p_chm->cur_ch_num]);
4364	}
4365	#endif
4366	break;
4367
4368	case eCHM_PROG_IDLE:
4369	result = chm_prog_idle(p_chm);
4370	break;
4371
4372	default:
4373	break;
4374	}
4375
4376	if (orig_state != p_chm->state)
4377	{
4378	BDBG_MSG(("CHM State changed from %s to %s\n",s_chm_state[orig_state],s_chm_state[p_chm->state]));
4379	}
4380	return result;
4381	}
4382
4383	/*
4384	* Summary:
4385	* background handling in idle time
4386	*/
4387	static int chm_prog_idle(chm_mgr_t *p_chm)
4388	{
4389	b_timeval tv;
4390
4391	gettimeofday(&tv);
4392	if (tv.tv_sec > (p_chm->mgt_tv.tv_sec + CHM_IDLE_TIMEOUT))
4393	{
4394	bapp_t p_app = (bapp_t)p_chm->p_app;
4395	#ifndef NO_VCHIP
4396	if (p_app->settings.ratings.ratings_lock == 2) {
4397	if (!p_chm->rrt_msg) {
4398	/* downloadable RRT */
4399	chm_start_filter_monitoring(p_chm, eCHM_MSG_FILTER_RRT);
4400	}
4401	}
4402	#endif
4403	if (p_app->chm.local_time_source == eTS_NONE)
4404	{
4405	p_chm->state = eCHM_GET_VCT;
4406	p_chm->p_info[p_chm->cur_ch_num].got_vct = false;
4407	} else {
4408	if (chm_need_mgt_update(p_chm)) {
4409	p_chm->state = eCHM_GET_MGT;
4410	}
4411	else
4412	p_chm->state = eCHM_GET_STT;
4413	}
4414	/* check signal */
4415	chm_check_signal(p_chm);
4416	} else {
4417	#if 1
4418	static unsigned int last_signal_check = 0;
4419	static unsigned int last_prog_check = 0;
4420
4421	if (last_prog_check < bos_getticks())
4422	{
4423	#ifdef CHECK_PROGRAM
4424	p_chm->state = chm_check_program(p_chm);
4425	#endif
4426
4427	last_prog_check = bos_getticks() + MS_TO_TICKS(CHM_CHECK_PROG_FREQ);
4428	}
4429
4430	if (last_signal_check < bos_getticks())
4431	{
4432	chm_send_status(p_chm,p_chm->last_freq_hz,true);
4433	last_signal_check = bos_getticks() + MS_TO_TICKS(CHM_CHECK_SIGNAL_FREQ);
4434	}
4435	p_chm->chmap_evt.ticks = 0;
4436	#endif
4437	}
4438	return 0;
4439	}
4440
4441	#ifdef CHECK_PROGRAM
4442	/*
4443	Summary:
4444	check the program for changes..
4445	*/
4446	int chm_check_program(chm_mgr_t *p_chm)
4447	{
4448	int result = eCHM_PROG_IDLE, i;
4449	bapp_t p_app = (bapp_t)p_chm->p_app;
4450	bapp_ch_t ch, *pch, cur_ch;
4451	unsigned int pmt_crc,pat_crc;
4452	int restart = 0, cur_ch_num; /* will use bit map */
4453
4454	/* serialize the update process to avoid a race condition */
4455	if (b_ok != bos_acquire_mutex(&p_chm->mutex,CHM_MUTEX_TIMEOUT)) {
4456	BDBG_WRN(("bos_acquire_mutex failed"));
4457	return eCHM_PROG_IDLE;
4458	}
4459	/* verify the cur_ch_num? */
4460	if (p_chm->cur_ch_num != p_app->cur_ch_num) {
4461	/* race condiction? */
4462	BDBG_WRN(("%d, cur_ch_num not match, race condition?", __func__));
4463	bos_release_mutex(&p_chm->mutex);
4464	return eCHM_PROG_IDLE;
4465	}
4466	/* remember current PAT and PMT CRC so that we know if PAT/PMT changes or not */
4467	pmt_crc = p_chm->pmt_crc;
4468	pat_crc = p_chm->pat_crc;
4469
4470	cur_ch_num = p_chm->cur_ch_num;
4471	/* make a local copy instead use p_app->cur_ch*/
4472	//pch = &p_app->cur_ch;
4473	memcpy(&cur_ch, &p_app->settings.ch[cur_ch_num], sizeof(bapp_ch_t));
4474	pch = &cur_ch;
4475
4476	/* initalize it here and also assign the program_num with mutex protection to avoid possible race condition */
4477	memset(&ch, 0, sizeof(ch));
4478	ch.program_num = pch->program_num;
4479
4480	bos_release_mutex(&p_chm->mutex);
4481
4482	BDBG_MSG(("*** chm_check_program ***"));
4483	if ((result = chm_get_program(p_chm, &ch)) != b_ok)
4484	{
4485	BDBG_WRN(("chm_get_program failed %d",result));
4486	return eCHM_PROG_IDLE; /* return state expected */
4487	}
4488
4489	/* Check if pat/pmt changed */
4490	if ((pat_crc == p_chm->pat_crc) && (pmt_crc == p_chm->pmt_crc))
4491	return eCHM_PROG_IDLE;
4492
4493	/* serialize the update process to avoid a race condition */
4494	if (b_ok != bos_acquire_mutex(&p_chm->mutex,CHM_MUTEX_TIMEOUT)) {
4495	BDBG_WRN(("bos_acquire_mutex failed"));
4496	return eCHM_PROG_IDLE;
4497	}
4498	if (ch.pcr_pid && (ch.pcr_pid != pch->pcr_pid))
4499	{
4500	BDBG_WRN(("PCR PID changed (new 0x%04x, current 0x%04x)",ch.pcr_pid, pch->pcr_pid));
4501	pch->pcr_pid = ch.pcr_pid;
4502	pch->psi = true;
4503	restart \|= 0x01; /* need to restart video */
4504	}
4505	if (ch.video_pid && ((ch.video_pid != pch->video_pid) \|\| (ch.video_type != pch->video_type)))
4506	{
4507	if (ch.video_pid != pch->video_pid) {
4508	BDBG_WRN(("Video PID changed (new 0x%04x, current 0x%04x)",ch.video_pid, pch->video_pid));
4509	pch->video_pid = ch.video_pid;
4510	}
4511	if (ch.video_type != pch->video_type) {
4512	BDBG_WRN(("Video type changed (new 0x%04x, current 0x%04x)",ch.video_type, pch->video_type));
4513	pch->video_type = ch.video_type;
4514	}
4515	restart \|= 0x01; /* need to restart video */
4516	pch->psi = true;
4517	}
4518	for (i = 0; i < MAX_AUDIO_PIDS && i < ch.num_audio; i++) {
4519	if (ch.audio_pid[i] && ((ch.audio_pid[i] != pch->audio_pid[i]) \|\| (ch.audio_type[i] != pch->audio_type[i])))
4520	{
4521	if (ch.audio_pid != pch->audio_pid) {
4522	BDBG_WRN(("Audio PID[%d] changed (new 0x%04x, current 0x%04x)", i, ch.audio_pid[i], pch->audio_pid[i]));
4523	pch->audio_pid[i] = ch.audio_pid[i];
4524	if (i == pch->cur_audio)
4525	restart \|= 0x02; /* need to restart audio */
4526	}
4527	if (ch.audio_type != pch->audio_type) {
4528	BDBG_WRN(("Audio type [%d] changed (new 0x%04x, current 0x%04x)", i, ch.audio_type[i], pch->audio_type[i]));
4529	pch->audio_type[i] = ch.audio_type[i];
4530	if (i == pch->cur_audio)
4531	restart \|= 0x02; /* need to restart audio */
4532	}
4533	memcpy(&pch->audio_lang[i][0],&ch.audio_lang[i][0], 3);
4534	pch->psi = true;
4535	}
4536	}
4537	if (ch.num_audio != pch->num_audio \|\| ch.has_lang != pch->has_lang \|\| ch.cur_audio != pch->cur_audio) {
4538	pch->num_audio = ch.num_audio;
4539	p_app->num_sap = ch.num_audio; /* need to update this as well so that it can select audio channel from UI */
4540	pch->has_lang = ch.has_lang;
4541	pch->cur_audio = ch.cur_audio;
4542	}
4543	/* if changed, resync the changes */
4544	if (0 != memcmp(&p_app->settings.ch[cur_ch_num], pch, sizeof(bapp_ch_t))) {
4545	p_app->settings.ch[cur_ch_num] = *pch;
4546	}
4547	bos_release_mutex(&p_chm->mutex);
4548
4549	if (restart)
4550	{
4551	chm_config_mpeg(p_chm, pch);
4552	if (0x01 & restart) {
4553	result = chm_start_decode(p_chm,true);
4554	}
4555	else {
4556	/* if video PID/PCR PID are not changed, then just restart audio to avoid video flushing */
4557	bstream_update_mpeg(p_chm->curr_stream->stream,&p_chm->mpeg[CURR_CH]);
4558	result = baudio_decode_start(p_app->audio, (void *)1, p_chm->curr_stream->stream);
4559	}
4560	if (result)
4561	{
4562	BDBG_WRN(("%s %s failed\n",__func__, (0x01 & restart) ? "chm_start_decode" : "baudio_decode_start"));
4563	}
4564	/* sync with current cur_ch as some of process refer to that cur_ch structure */
4565	p_app->cur_ch = p_app->settings.ch[cur_ch_num];
4566	}
4567	return eCHM_PROG_IDLE;
4568	}
4569	#endif /CHECK_PROGRAM/
4570
4571	/*
4572	Summary:
4573	Channel Manager Task.
4574	*/
4575	static void chm_handler(void *data)
4576	{
4577	chm_cmd_t orig_cmd;
4578	chm_mgr_t p_chm = (chm_mgr_t )data;
4579	chm_cmd_event_t *p_cmd;
4580
4581	while (1)
4582	{
4583	orig_cmd = p_chm->cmd;
4584	switch (p_chm->cmd)
4585	{
4586	case eCHM_CANCEL:
4587	p_cmd = (chm_cmd_event_t*)bos_pend_event(p_chm->queue,-1);
4588	if (p_cmd == NULL)
4589	break;
4590
4591	p_chm->cmd = (chm_cmd_t)p_cmd->cmd_id;
4592	break;
4593	case eCHM_SAP:
4594	p_chm->cmd = eCHM_CANCEL;
4595	break;
4596
4597	case eCHM_STOP:
4598	chm_stop_decode(p_chm);
4599	p_chm->cmd = eCHM_CANCEL;
4600	break;
4601
4602	case eCHM_TUNE:
4603	chm_tune(p_chm);
4604	break;
4605	case eCHM_HUNT:
4606	chm_hunt(p_chm);
4607	break;
4608	case eCHM_GUIDE:
4609	chm_get_guide(p_chm);
4610	break;
4611	case eCHM_INFO:
4612	chm_get_prog_details(p_chm);
4613	break;
4614	case eCHM_CHECK_SIGNAL:
4615	chm_check_signal(p_chm);
4616	break;
4617	}
4618
4619	if (orig_cmd != p_chm->cmd)
4620	{
4621	BDBG_WRN(("CHM CMD changed from %s to %s\n", s_chm_cmd_name[orig_cmd],s_chm_cmd_name[p_chm->cmd]));
4622	}
4623
4624	/* Yield a little */
4625	bos_sleep(40);
4626	}
4627	}
4628
4629	/*
4630	Summary:
4631	Initialize the channel manager.
4632	*/
4633
4634	void chm_init(chm_mgr_t p_chm, void p_app)
4635	{
4636	b_task_params params;
4637	bresult rc;
4638	memset(p_chm,0,sizeof(chm_mgr_t));
4639	p_chm->p_app = p_app;
4640	/* for NTIA project */
4641	#ifdef CONFIG_ISDB
4642	p_chm->fe_type = eFREQ_TABLE_ISDB;
4643	#else
4644	p_chm->fe_type = eFREQ_TABLE_NTIA_VSB;
4645	#endif
4646	rc = bos_create_queue(&p_chm->queue,p_chm->event,MAX_CHM_EVENT);
4647	BDBG_ASSERT(rc == b_ok);
4648	rc = bos_create_queue(&p_chm->gen_queue,p_chm->gen_event,MAX_MSG_EVENTS);
4649	BDBG_ASSERT(rc == b_ok);
4650	rc = bos_create_mutex(&p_chm->mutex);
4651	BDBG_ASSERT(rc == b_ok);
4652	rc = bos_create_mutex(&p_chm->ch_map_mutex);
4653	BDBG_ASSERT(rc == b_ok);
4654
4655	/* will remove ch_map related functions and variables */
4656	//ch_map_init(&(p_chm->ch_map),&(p_chm->ch_map_mutex));
4657
4658	/* round to nearest chm_info_t size */
4659	p_chm->max_info_num = MAX_CHANNELS;
4660	p_chm->p_info = (chm_info_t)malloc(p_chm->max_info_num sizeof(chm_info_t));
4661
4662	BDBG_ASSERT(p_chm->p_info);
4663	memset(p_chm->p_info,0,p_chm->max_info_num * sizeof(chm_info_t));
4664
4665	BDBG_MSG(("Maximum guide entries = %d.\n",p_chm->max_info_num));
4666
4667	p_chm->stack = malloc(CHM_INT_STK_SIZE * 4);
4668	BDBG_ASSERT(p_chm->stack);
4669
4670	params.priority = CHM_INT_PRIORITY;
4671	params.stack = p_chm->stack;
4672	params.name = "chan_mgr";
4673	params.stack_size = CHM_INT_STK_SIZE;
4674
4675	p_chm->pat_buf = malloc(PAT_BUF_LEN);
4676	p_chm->pmt_buf = malloc(PMT_BUF_LEN);
4677	p_chm->stt_buf = malloc(STT_BUF_LEN);
4678	p_chm->vct_buf = malloc(VCT_BUF_LEN);
4679	p_chm->eit_buf = malloc(EIT_BUF_LEN);
4680	p_chm->ett_buf = malloc(ETT_BUF_LEN);
4681	p_chm->mgt_buf = malloc(MGT_BUF_LEN);
4682	p_chm->eas_buf = malloc(EAS_BUF_LEN);
4683
4684	BDBG_ASSERT(p_chm->pat_buf && p_chm->pmt_buf && p_chm->mgt_buf && p_chm->eit_buf &&
4685	p_chm->stt_buf && p_chm->vct_buf && p_chm->eas_buf && p_chm->ett_buf);
4686
4687	bstream_mpeg_init(&p_chm->mpeg[CURR_CH]);
4688	bstream_mpeg_init(&p_chm->mpeg[NEXT_CH]);
4689	bstream_mpeg_init(&p_chm->mpeg[PREV_CH]);
4690
4691	p_chm->tuner = btuner_open((0));
4692	BAPP_ASSERT(p_chm->tuner);
4693
4694	p_chm->smsg = smessage_open(smessage_format_psi);
4695
4696	BAPP_ASSERT(p_chm->smsg);
4697
4698	p_chm->vendor_id = DEF_VENDOR_ID;
4699	p_chm->hardware_version_id = DEF_HARDWARE_ID;
4700
4701	p_chm->cmd = eCHM_CANCEL;
4702	p_chm->hunt_cnt = 0;
4703
4704	/* set default network pid */
4705	p_chm->network_pid = 0x1ffb;
4706
4707	bos_start_task(&p_chm->task,&params,chm_handler,p_chm);
4708
4709	#ifdef BCM_DEBUG
4710	BDBG_SetModuleLevel("chan_mgr",BDBG_eWrn);
4711	#endif
4712	}
4713
4714	/*
4715	Summary:
4716	Function to pass a command to the channel manager.
4717	Any results and notification is handled by passing events to the app via
4718	the msg_queue.
4719
4720	*/
4721	void chm_cmd(chm_mgr_t p_chm,chm_cmd_event_t p_cmd_evt)
4722	{
4723	chm_cmd_t cmd;
4724
4725	BAPP_ASSERT(p_chm);
4726	BAPP_ASSERT(p_cmd_evt);
4727
4728	cmd = p_cmd_evt->cmd_id;
4729
4730	/* Handle special case to rotate audio */
4731	if ((cmd == eCHM_SAP) && (p_chm->cmd != eCHM_CANCEL))
4732	{
4733	BDBG_WRN(("Command %s, during %s\n",s_chm_cmd_name[cmd], s_chm_cmd_name[p_chm->cmd]));
4734	bos_post_event(p_chm->queue,(b_event_t*)p_cmd_evt);
4735	return;
4736	}
4737	if ((cmd != eCHM_CANCEL) && (p_chm->cmd != eCHM_CANCEL))
4738	{
4739	BDBG_WRN(("Canceling previous command %s for %s\n", s_chm_cmd_name[p_chm->cmd],s_chm_cmd_name[cmd]));
4740	p_chm->cancel_cmd.cmd_id = eCHM_CANCEL;
4741	bos_post_event(p_chm->queue,(b_event_t*)&p_chm->cancel_cmd);
4742	bos_sleep(40); /* yield so thread can process event right away */
4743	}
4744
4745	bos_post_event(p_chm->queue,(b_event_t*)p_cmd_evt);
4746	bos_sleep(10); /* yield so thread can process event right away */
4747	}
4748
4749	bresult chm_write_software(struct image_t * image)
4750	{
4751	return image_write(image);
4752	}
4753
4754	#define CHM_SC_MASK 0xc0
4755	#define CHM_SC_BUFFER_SIZE (188*10)
4756	static unsigned char chm_sc_buffer[CHM_SC_BUFFER_SIZE];
4757
4758	static void * chm_sc_callback(void * c, size_t msg_size)
4759	{
4760	unsigned int * pdata_ready = (unsigned int *)c;
4761	*pdata_ready = msg_size;
4762	return NULL;
4763	}
4764
4765	bool chm_check_sc(chm_mgr_t *p_chm, bband_t band, unsigned short pid)
4766	{
4767	smessage_stream_t ms;
4768	smessage_stream_params_t params;
4769	bresult bres;
4770	bool result;
4771	unsigned int count;
4772	volatile unsigned int data_ready;
4773	unsigned char * walker;
4774
4775	result = false;
4776	ms = smessage_open(smessage_format_tsc);
4777	if (NULL == ms)
4778	{
4779	BDBG_ERR(("%s : smessage_open failed", __PRETTY_FUNCTION__));
4780	goto ExitFunc;
4781	}
4782	smessage_stream_params_init(&params, NULL);
4783	params.band = band;
4784	params.pid = pid;
4785	params.buffer_size = CHM_SC_BUFFER_SIZE;
4786	params.buffer = chm_sc_buffer;
4787	params.data_ready_callback = chm_sc_callback;
4788	params.overflow = chm_sc_callback;
4789	params.callback_context = (void *)&data_ready;
4790	data_ready = 0;
4791	bres = smessage_start(&params, ms);
4792	if (b_ok != bres)
4793	{
4794	smessage_close(ms);
4795	BDBG_ERR(("%s : smessage_start", __PRETTY_FUNCTION__));
4796	goto ExitFunc;
4797	}
4798	/* Updating unsigned int is atomic operation on mips. We can just wait for
4799	callback to update our flag when data is ready */
4800	count = 3;
4801	do
4802	{
4803	bos_sleep(50);
4804	count--;
4805	}while ((0 == data_ready)&&(0 != count));
4806
4807	bres = smessage_stop(ms);
4808	if (b_ok != bres)
4809	{
4810	smessage_close(ms);
4811	BDBG_ERR(("%s : smessage_stop", __PRETTY_FUNCTION__));
4812	goto ExitFunc;
4813	}
4814	smessage_close(ms);
4815	/* Figure out if we got data and if sc flags are set */
4816	if (0 != data_ready)
4817	{
4818	/* We have data. Check few packets for sc bits */
4819	walker = chm_sc_buffer;
4820	for (count = 0; count < 5; count++)
4821	{
4822	if (0 != (walker[3] & CHM_SC_MASK))
4823	{
4824	goto ExitFunc;
4825	}
4826	walker += 188;
4827	}
4828	result = true;
4829	}
4830	ExitFunc:
4831	BDBG_ERR(("pid %d %s", pid, (result == true ? "clear" : "encr")));
4832	return result;
4833	}
4834
4835	#ifndef NO_VCHIP
4836	#define BAPP_MPAA_RATING_STR_NUM 8
4837	static const char *bapp_mpa_rating_str[] =
4838	{
4839	"", /* unrated */
4840	"G",
4841	"PG",
4842	"PG-13",
4843	"R",
4844	"NC-17",
4845	"X",
4846	"NR" /* Not Rated */
4847	};
4848
4849	#define BAPP_TV_RATING_STR_NUM 8
4850	static const char *bapp_tv_rating_str[BAPP_TV_RATING_STR_NUM] =
4851	{
4852	"", /* unrated */
4853	"TV-Y",
4854	"TV-Y7",
4855	"TV-G",
4856	"TV-PG",
4857	"TV-14",
4858	"TV-MA",
4859	"" /* unrated */
4860	};
4861
4862	/*
4863	Summary:
4864	Use dimension and value to make a ratings decision based on the
4865	static ratings configuration in the UI.
4866
4867	This function assumes region matches currently received RRT or current
4868	region == 1 (USA).
4869	*/
4870	static int chm_psip_block(bapp_t p_app, unsigned char region,unsigned char dim,unsigned char val, char rating_str)
4871	{
4872	int blocked = 0;
4873	int pos = 0;
4874
4875	BDBG_MSG(("%s - region:%d\n", __func__, region));
4876
4877	/* handle RRT ratings */
4878	/* only take effect if ratings is set for downloadable level */
4879	if ((p_app->settings.rrt_settings.rrt_status == eRRT_AVAILABLE) && (region != 1) && (2 == p_app->settings.ratings.ratings_lock))
4880	{
4881	if (p_app->settings.rrt_settings.ratings_rrt[dim] & (1 << val))
4882	blocked \|= 1;
4883	}
4884	BDBG_WRN(("RRT psip rating check - rrt dim:%d rrt val:%d blocked:%d\n", dim, val, blocked));
4885
4886	if ((region == 1) && (!blocked))/* US ratings are fixed */
4887	{
4888	BDBG_WRN(("%s (movie:%x tv:%x) dim:%d val:%d\n",__func__,p_app->settings.ratings.ratings_movies,p_app->settings.ratings.ratings_tv,dim,val));
4889
4890	if (val == 0)
4891	{
4892	BDBG_WRN(("US PSIP rating value = 0 so assume unblocked!\n"));
4893	return 0;
4894	}
4895
4896	if (dim == 7) /* check settings for MPAA ratings */
4897	{
4898	pos = 0;
4899
4900	/* map to xds values */
4901	if (val > 0)
4902	val--;
4903
4904	p_app->movie_rating = val;
4905
4906	pos = screen_ratings_movie_xds2pos(p_app->movie_rating);
4907
4908	/* update rating string */
4909	if (rating_str)
4910	{
4911	if (val < BAPP_MPAA_RATING_STR_NUM)
4912	strcpy(rating_str, bapp_mpa_rating_str[val]);
4913	}
4914	if (pos >= 0)
4915	blocked \|= ((p_app->settings.ratings.ratings_movies >> pos) & (0 \| (0x1)));
4916	} else /* check settings for TV ratings */
4917	{
4918	switch (dim)
4919	{
4920	case 0: /* entire audience */
4921	{
4922	int pos = 0;
4923	/* map to xds values */
4924	if (val <= 1)
4925	{
4926	/* none (1) mapped to unrated */
4927	p_app->tv_rating = 0;
4928	} else
4929	{
4930	/* TV-G, TV-PG, TV-14, and TV-MA map to corresponding XDS TV ratings */
4931	p_app->tv_rating = val + 1;
4932	}
4933
4934	pos = screen_ratings_tv_xds2pos(p_app->tv_rating);
4935
4936	if (rating_str)
4937	{
4938	if (p_app->tv_rating < BAPP_TV_RATING_STR_NUM)
4939	strcpy(rating_str, bapp_tv_rating_str[p_app->tv_rating]);
4940	}
4941
4942	if (pos >= 0)
4943	blocked \|= ((p_app->settings.ratings.ratings_tv >> pos) & (0 \| (0x1)));
4944	}
4945	break;
4946	case 1: /* dialogue */
4947	{
4948	if (val == 0)
4949	break;
4950	pos = screen_ratings_tv_xds2pos(p_app->tv_rating);
4951	if (pos == ePOS_TV_14)
4952	blocked \|= ((p_app->settings.ratings.ratings_tv >> ePOS_TV_14_D) & (0 \| (0x1)));
4953	else
4954	if (pos == ePOS_TV_PG)
4955	blocked \|= ((p_app->settings.ratings.ratings_tv >> ePOS_TV_PG_D) & (0 \| (0x1)));
4956	if (rating_str)
4957	{
4958	strcpy(rating_str, "D");
4959	}
4960	}
4961	break;
4962	case 2: /* language */
4963	{
4964	if (val == 0)
4965	break;
4966	pos = screen_ratings_tv_xds2pos(p_app->tv_rating);
4967	if (pos == ePOS_TV_MA)
4968	blocked \|= ((p_app->settings.ratings.ratings_tv >> ePOS_TV_MA_L) & (0 \| (0x1)));
4969	else
4970	if (pos == ePOS_TV_14)
4971	blocked \|= ((p_app->settings.ratings.ratings_tv >> ePOS_TV_14_L) & (0 \| (0x1)));
4972	else
4973	if (pos == ePOS_TV_PG)
4974	blocked \|= ((p_app->settings.ratings.ratings_tv >> ePOS_TV_PG_L) & (0 \| (0x1)));
4975
4976	if (rating_str)
4977	{
4978	strcpy(rating_str, "L");
4979	}
4980	}
4981	break;
4982	case 3: /* sex */
4983	{
4984	if (val == 0)
4985	break;
4986	pos = screen_ratings_tv_xds2pos(p_app->tv_rating);
4987	if (pos == ePOS_TV_MA)
4988	blocked \|= ((p_app->settings.ratings.ratings_tv >> ePOS_TV_MA_S) & (0 \| (0x1)));
4989	else
4990	if (pos == ePOS_TV_14)
4991	blocked \|= ((p_app->settings.ratings.ratings_tv >> ePOS_TV_14_S) & (0 \| (0x1)));
4992	else
4993	if (pos == ePOS_TV_PG)
4994	blocked \|= ((p_app->settings.ratings.ratings_tv >> ePOS_TV_PG_S) & (0 \| (0x1)));
4995	if (rating_str)
4996	{
4997	strcpy(rating_str, "S");
4998	}
4999	}
5000	break;
5001	case 4: /* violence */
5002	{
5003	if (val == 0)
5004	break;
5005	pos = screen_ratings_tv_xds2pos(p_app->tv_rating);
5006	if (pos == ePOS_TV_MA)
5007	blocked \|= ((p_app->settings.ratings.ratings_tv >> ePOS_TV_MA_V) & (0 \| (0x1)));
5008	else
5009	if (pos == ePOS_TV_14)
5010	blocked \|= ((p_app->settings.ratings.ratings_tv >> ePOS_TV_14_V) & (0 \| (0x1)));
5011	else
5012	if (pos == ePOS_TV_PG)
5013	blocked \|= ((p_app->settings.ratings.ratings_tv >> ePOS_TV_PG_V) & (0 \| (0x1)));
5014	if (rating_str)
5015	{
5016	strcpy(rating_str, "V");
5017	}
5018	}
5019	break;
5020	case 5: /* children */
5021	{
5022	if (val == 0)
5023	break;
5024	pos = 0;
5025
5026	/* TV-Y7 and TV-Y map to corresponding XDS TV ratings */
5027	p_app->tv_rating = val;
5028
5029	pos = screen_ratings_tv_xds2pos(p_app->tv_rating);
5030
5031	if (rating_str)
5032	{
5033	if (p_app->tv_rating < BAPP_TV_RATING_STR_NUM)
5034	strcpy(rating_str, bapp_tv_rating_str[p_app->tv_rating]);
5035	}
5036	if (pos >= 0)
5037	blocked \|= ((p_app->settings.ratings.ratings_tv >> pos) & (0 \| (0x1)));
5038	}
5039	break;
5040	case 6: /* fantasy violence */
5041	{
5042	if (val == 0)
5043	break;
5044	pos = screen_ratings_tv_xds2pos(p_app->tv_rating);
5045	if (pos == ePOS_TV_Y7)
5046	blocked \|= ((p_app->settings.ratings.ratings_tv >> ePOS_TV_Y7_FV) & (0 \| (0x1)));
5047	if (rating_str)
5048	{
5049	strcpy(rating_str, "FV");
5050	}
5051	}
5052	break;
5053	default:
5054	break;
5055	}
5056	}
5057	}
5058
5059	if (p_app->settings.ratings.ratings_lock == 0)
5060	blocked = 0;
5061
5062	return blocked;
5063	}
5064	#endif
5065
5066	/*
5067	Summary:
5068	Get the current utc time in seconds.
5069	Return non-zero on failure.
5070	*/
5071	static int chm_get_utctime(chm_mgr_t p_chm, unsigned int time )
5072	{
5073	b_timeval tv;
5074
5075	if (!p_chm->got_stt)
5076	return eCHM_ERR_FAILED;
5077
5078	GETTIMEOFDAY(&tv);
5079
5080	*time = p_chm->sys_time + (tv.tv_sec - p_chm->sys_offset);
5081
5082	return 0;
5083	}
5084
5085	/*
5086	Summary:
5087	Get the current UTC time, local offset and dst flag.
5088	Returns non-zero when it is not possible to determine local time.
5089	Currently this function uses XDS local offset over one obtained from the TSIDs
5090
5091	*/
5092	unsigned int g_xds_time_offset = 0;
5093	bool g_xds_dst = false;
5094
5095	int chm_get_time_info(chm_mgr_t *p_chm,
5096	unsigned int utc_secs, / Current UTC time in seconds */
5097	int local_offset, / Local time offset from UTC time in seconds */
5098	bool dst / Daylight savings flag */
5099	)
5100	{
5101	int result;
5102
5103	if ((result = chm_get_utctime(p_chm,utc_secs)) != 0)
5104	return result;
5105
5106	/* Use XDS local time over time obtained from a TSID */
5107	if (g_xds_time_offset != 0)
5108	{
5109	p_chm->local_offset = 3600 * g_xds_time_offset;
5110	p_chm->local_time_source = eTS_XDS;
5111	p_chm->local_dst_obs = g_xds_dst;
5112	}
5113
5114	if (p_chm->local_time_source == eTS_NONE)
5115	return eCHM_ERR_FAILED;
5116
5117	*local_offset = p_chm->local_offset;
5118	*dst = ((p_chm->stt.daylight_savings.DS_status != 0) && p_chm->local_dst_obs) ? true : false;
5119
5120	BDBG_MSG(("STT system_time = %u\n",p_chm->stt.system_time));
5121	BDBG_MSG(("STT GPS_UTC_offset = %u\n",p_chm->stt.GPS_UTC_offset));
5122	BDBG_MSG(("STT DS_status = %d\n",p_chm->stt.daylight_savings.DS_status));
5123
5124	if (*dst)
5125	{
5126	*utc_secs += 3600;
5127	}
5128
5129	return 0;
5130	}
5131
5132	static void chm_post_progress(chm_mgr_t *p_chm, int cnt)
5133	{
5134	bapp_t p_app = (bapp_t)p_chm->p_app;
5135
5136	if (p_app->settings.num_channels > 0) {
5137	p_chm->redraw_evt.type = eCHM_EVT_PROGRESS;
5138	cnt %= p_app->settings.num_channels;
5139	p_chm->redraw_evt.id = (100 * cnt) / p_app->settings.num_channels;
5140	chm_post_app_event(p_chm,&p_chm->redraw_evt);
5141	bos_sleep(10);
5142	}
5143	}
5144
5145	/*
5146	Summary:
5147	Get program guide info.
5148	Description:
5149	Get program guide info in Program List screen
5150	Returns non-zero on failure.
5151	*/
5152
5153	static int chm_get_guide(chm_mgr_t *p_chm)
5154	{
5155	unsigned int utc_secs,local_offset,idx, freq;
5156	bool dst;
5157	bapp_t p_app = (bapp_t)p_chm->p_app;
5158	chm_info_t *p_info;
5159	b_timeval tv;
5160	int num_channels;
5161
5162	chm_stop_decode(p_chm);
5163
5164	/* Check to see if scan was canceled */
5165	if (chm_check_cancel(p_chm))
5166	return eCHM_ERR_FAILED;
5167
5168	if (p_app->settings.num_channels < 1) {
5169	/* if no channels */
5170	p_chm->cmd = eCHM_CANCEL;
5171	return eCHM_ERR_OK;
5172	}
5173
5174	num_channels = p_app->settings.num_channels;
5175
5176	/* Completely reset and start over */
5177	BDBG_MSG(("To get Guide for all %d channels",num_channels));
5178
5179	if ((chm_get_time_info(p_chm,&utc_secs,&local_offset,&dst) != 0) \|\| (p_chm->local_time_source == eTS_NONE))
5180	{
5181	BDBG_WRN(("Need local time and UTC offset before guide can be displayed with time info.\n"));
5182	}
5183
5184	gettimeofday(&tv);
5185	if (tv.tv_sec > (p_chm->guide_tv.tv_sec + (60 * 15)))
5186	{
5187	/RLQ, TODO check if EIT is valid and reset only invalid one /
5188	for (idx = 0; idx < num_channels; ++idx)
5189	{
5190	p_info = &p_chm->p_info[idx];
5191	memset(p_info,0,sizeof(chm_info_t));
5192	p_chm->redraw_evt.type = eCHM_EVT_REDRAW;
5193	p_chm->redraw_evt.id = idx;
5194	p_chm->redraw_evt.ticks = 1;
5195	chm_post_app_event(p_chm,&p_chm->redraw_evt);
5196	//bos_sleep(50);
5197	}
5198	}
5199	gettimeofday(&p_chm->guide_tv);
5200
5201	p_chm->cur_ch_num = p_app->chm.epg_update_ch_num;
5202	while (p_chm->cmd == eCHM_GUIDE)
5203	{
5204	if (p_chm->cur_ch_num >= num_channels)
5205	{
5206	p_chm->cur_ch_num = 0;
5207	}
5208
5209	BDBG_MSG(("Get program info for CH %d of %d, vpid=0x%04x, apid=0x%04x",p_chm->cur_ch_num,num_channels,
5210	p_app->settings.ch[p_chm->cur_ch_num].video_pid, p_app->settings.ch[p_chm->cur_ch_num].audio_pid[0]));
5211
5212	/* Check to see if scan was canceled */
5213	if (chm_check_cancel(p_chm))
5214	{
5215	BDBG_WRN(("Get Guide canceled"));
5216	break;
5217	}
5218
5219	freq = p_app->settings.ch[p_chm->cur_ch_num].frequency_khz * 1000;
5220	if (freq != p_chm->last_freq_hz) {
5221	if (chm_tune_freq(p_chm, freq) != 0)
5222	{
5223	BDBG_WRN(("Tune to channel[%d] %d.%d failed\n",p_chm->cur_ch_num,
5224	p_app->settings.ch[p_chm->cur_ch_num].major,p_app->settings.ch[p_chm->cur_ch_num].minor));
5225	goto POST_PROG;
5226	}
5227	}
5228
5229	#if 0
5230	/* Some channels are sending STT correctly for DST and others do not.
5231	To work around this get STT for each channel */
5232	if (chm_get_stt(p_chm)) {
5233	goto POST_PROG;
5234	}
5235	#endif
5236
5237	p_info = &p_chm->p_info[p_chm->cur_ch_num];
5238	BDBG_MSG(("### Get VCT"));
5239	if (!p_info->got_vct && eCHM_ERR_OK != chm_get_vct(p_chm, p_info))
5240	{
5241	BDBG_MSG(("Failed to get VCT for guide"));
5242	goto POST_PROG;
5243	}
5244
5245	BDBG_MSG(("### Get MGT for channel %d\n", p_chm->cur_ch_num));
5246	if (eCHM_ERR_OK != chm_get_mgt(p_chm)) {
5247	BDBG_WRN(("Failed to get MGT for guide"));
5248	goto POST_PROG;
5249	}
5250
5251	BDBG_MSG(("### Process MGT ###"));
5252	p_chm->mgt_state = eMGT_EIT;
5253	chm_process_mgt(p_chm, p_chm->mgt_buf,p_chm->mgt_size,p_info,false,true);
5254
5255	POST_PROG:
5256	chm_post_progress(p_chm, p_chm->cur_ch_num);
5257
5258	/* if updated from GUIDE UI by the user, resync it */
5259	if (p_chm->epg_update_ch_num != p_chm->cur_ch_num) {
5260	p_chm->cur_ch_num = p_chm->epg_update_ch_num;
5261	}
5262	p_chm->cur_ch_num++;
5263	p_chm->cur_ch_num %= num_channels;
5264	p_chm->epg_update_ch_num = p_chm->cur_ch_num;
5265	/* rescan ? */
5266	if (p_app->settings.num_channels != num_channels)
5267	break;
5268	}
5269
5270	/* leave guide state */
5271	p_chm->cmd = eCHM_CANCEL;
5272	return 0;
5273	}
5274
5275	/*
5276	* Summary:
5277	* Get a copy of the current channel manager info structure.
5278	*
5279	* */
5280	void chm_get_cur_ch_info(
5281	chm_mgr_t *p_chm,
5282	chm_info_t *p_info,
5283	bstream_mpeg *p_mpeg)
5284	{
5285	bapp_t p_app = (bapp_t)p_chm->p_app;
5286
5287	memset(p_info,0,sizeof(chm_info_t));
5288	memset(p_mpeg,0,sizeof(bstream_mpeg));
5289
5290	if (bos_acquire_mutex(&p_chm->mutex,CHM_MUTEX_TIMEOUT) == b_ok)
5291	{
5292	*p_mpeg = p_chm->mpeg[CURR_CH];
5293	memcpy(&p_chm->cur_info,&p_chm->p_info[p_app->cur_ch_num],sizeof(chm_info_t));
5294	*p_info = p_chm->cur_info;
5295	bos_release_mutex(&p_chm->mutex);
5296	} else
5297	{
5298	BDBG_WRN(("%s mutex timeout\n", __func__));
5299	}
5300	}
5301
5302	#ifdef CONFIG_NXP_TDA182I4
5303	void NXP_TDA182I4_SetStandby()
5304	{
5305	NXP_TDA182I4_SetPowerState();
5306	return;
5307	}
5308	#endif
5309
5310	#ifdef TUNER_DEBUG
5311	/*
5312	Summary:
5313	Scan for channels using PSI for given frequency
5314	Description:
5315	Scan for channels using PSI.
5316	Returns:
5317	Number of channels added
5318	Or error code if < 0
5319	*/
5320	int chm_scan_psi_a_freq(
5321	chm_mgr_t p_chm, / Channel manager reference */
5322	unsigned int freq_khz)
5323	{
5324	bapp_t p_app = (bapp_t)p_chm->p_app;
5325	unsigned int section_size, pmt_section_size;
5326	TS_PMT_stream pmt;
5327	TS_PAT_program pat;
5328	int result = 0;
5329	int idx,p_idx,tresult, desc_idx = 0, programs, freq_idx = -1;
5330	TS_PSI_descriptor psi_desc;
5331	unsigned short ca_pid = 0, minor = 1;
5332	bapp_ch_t ch;
5333
5334	/* stop decoder */
5335	chm_stop_decode(p_chm);
5336
5337	p_chm->cmd = eCHM_CANCEL;
5338	bos_sleep(200);
5339
5340	if (eFREQ_TABLE_USER_DEFINED == p_chm->fe_type)
5341	bapp_user_freq_table_get(p_app, &p_chm->freq_table, &p_chm->num_freq);
5342	else
5343	bapp_freq_table_get(p_chm->fe_type,(const unsigned int **)&(p_chm->freq_table),&(p_chm->num_freq));
5344
5345	/* search for the frequency from the frequency list */
5346	for (idx = 0; idx < p_chm->num_freq; idx++) {
5347	if (freq_khz == (int)p_chm->freq_table[idx]) {
5348	freq_idx = idx;
5349	break;
5350	}
5351	}
5352
5353	/* can't find the given frequency */
5354	if (idx >= p_chm->num_freq)
5355	return -1;
5356
5357	/* clear channel map for a new scan */
5358	p_app->settings.num_channels = 0;
5359	memset(p_app->settings.ch, 0, sizeof(p_app->settings.ch));
5360	memset(p_chm->p_info,0,p_chm->num_freq * sizeof(chm_info_t));
5361
5362	p_chm->cmd = eCHM_CANCEL;
5363	bos_sleep(200);
5364
5365	/* tuning to given frequency */
5366	btuner_params_init(&p_chm->tuner_params, p_chm->tuner);
5367	//p_chm->tuner_params.cancel_callback = chm_tune_cancel_callback;
5368	//p_chm->tuner_params.cancel_callback_context = p_chm;
5369	p_chm->tuner_params.wait_for_lock = true;
5370
5371	if (btuner_tune(p_chm->tuner, freq_khz * 1000, &p_chm->tuner_params) < 0) {
5372	BDBG_WRN(("### tune freqency %d failed\n", freq_khz * 1000));
5373	return -1;
5374	}
5375
5376	p_chm->band = TUNER_BAND;
5377
5378	p_chm->select_idx = freq_idx;
5379	p_chm->not_check_cancel = true;
5380	result = chm_scan_vct(p_chm,p_chm->band,p_chm->select_idx);
5381	p_chm->not_check_cancel = false;
5382	if (result > 0) {
5383	BDBG_WRN(("### Got VCT"));
5384	/* we got the channels, set first channel to start after a new scan */
5385	p_app->cur_ch_num = 0;
5386	return result;
5387	}
5388
5389	BDBG_WRN(("### VCT scan on frequency %d failed, perform PSI scan instead\n", freq_khz * 1000));
5390
5391	/* Get the PAT */
5392	smessage_stream_params_init(&p_chm->msg_params, NULL);
5393	p_chm->msg_params.band = p_chm->band;
5394	p_chm->msg_params.pid = (unsigned short)0; /* PAT */
5395	/* All PSIP tables have protocol_version which must be = 0 */
5396	//p_chm->msg_params.filter.coef[8] = 0x00; /* protocol_version */
5397	//p_chm->msg_params.filter.mask[8] = 0x00;
5398	section_size = PAT_BUF_LEN;
5399
5400	if ((result = chm_getmessage(p_chm,p_chm->pat_buf,&section_size, PAT_TIMEOUT)) != 0)
5401	{
5402	BDBG_WRN(("%s Timeout getting PAT\n",__func__));
5403	return result;
5404	}
5405
5406	if (TS_PAT_validate(p_chm->pat_buf, section_size) != true)
5407	{
5408	BDBG_WRN(("TS_PAT_validate failed\n"));
5409	return eCHM_ERR_FAILED;
5410	}
5411
5412	programs = TS_PAT_getNumPrograms(p_chm->pat_buf);
5413	BDBG_MSG(("Programs %d in PAT", programs));
5414
5415	if (0 == programs)
5416	{
5417	BDBG_WRN(("%s TS_PAT_getNumPrograms = 0,section_size = %d\n",__func__,section_size));
5418	return eCHM_ERR_FAILED;
5419	}
5420	p_chm->pat_crc = chm_section_crc(p_chm->pat_buf,section_size);
5421
5422	for (idx = 0; idx < programs; idx++)
5423	{
5424	section_size = PAT_BUF_LEN;
5425	if ((tresult = TS_PAT_getProgram( p_chm->pat_buf, section_size, idx, &pat )) != b_ok)
5426	{
5427	BDBG_WRN(("TS_PAT_getProgram failed 0x%x", tresult));
5428	return eCHM_ERR_FAILED;
5429	}
5430
5431	smessage_stream_params_init(&p_chm->msg_params, NULL);
5432	p_chm->msg_params.band = p_chm->band;
5433	p_chm->msg_params.pid = (unsigned short)pat.PID; /* PMT */
5434	/* All PSIP tables have protocol_version which must be = 0 */
5435	//p_chm->msg_params.filter.coef[8] = 0x00; /* protocol_version */
5436	//p_chm->msg_params.filter.mask[8] = 0x00;
5437	pmt_section_size = PMT_BUF_LEN;
5438	if ((tresult = chm_getmessage(p_chm,p_chm->pmt_buf,&pmt_section_size, PMT_TIMEOUT * 2)) != 0)
5439	{
5440	BDBG_WRN(("Failed getting PMT 0x%04x\n",pat.PID));
5441	continue;
5442	}
5443	p_chm->pmt_crc = chm_section_crc(p_chm->pmt_buf,pmt_section_size);
5444
5445	memset(&ch,0,sizeof(ch));
5446	ch.major = (freq_idx == 0x7F) ? 0 : freq_idx + 2; /* freq_idx is off by 2 */
5447	ch.minor = minor++;
5448	ch.freq_idx = freq_idx;
5449	ch.pcr_pid = TS_PMT_getPcrPid(p_chm->pmt_buf,pmt_section_size);
5450	ch.program_num = pat.program_number;
5451	ch.psi = true; /* we got this entry using PSI scan vs VCT */
5452	/* Get CA pid if */
5453	while ((psi_desc = TS_PMT_getDescriptor(p_chm->pmt_buf, pmt_section_size,desc_idx++)) != NULL)
5454	{
5455	if (desc_idx > 0xFF)
5456	{
5457	BDBG_ERR(("PMT Desc limit exceeded %d\n",desc_idx));
5458	break;
5459	}
5460	if (psi_desc[0] == 9)
5461	{
5462	ca_pid = (((unsigned short)(psi_desc[4] & 0x1F)) << 8) \| (unsigned short)psi_desc[5];
5463	BDBG_MSG(("CA PID = 0x%04x\n",ca_pid));
5464	break;
5465	}
5466	}
5467	if (ca_pid != 0x0000)
5468	{
5469	BDBG_MSG(("Program has CA PID 0x%02x check for scrambling control bit.\n",ca_pid));
5470	}
5471
5472	for (p_idx = 0; p_idx < TS_PMT_getNumStreams(p_chm->pmt_buf,pmt_section_size); p_idx++)
5473	{
5474	bsettop_av_stream_type_t *stream_type;
5475
5476	if (TS_PMT_getStream( p_chm->pmt_buf, pmt_section_size, p_idx, &pmt ) != b_ok)
5477	{
5478	BDBG_WRN(("Failure processing PMT %d\n",p_idx));
5479	return eCHM_ERR_FAILED;
5480	}
5481	if ((stream_type = bdecode_supported_video(pmt.stream_type)) != NULL)
5482	{
5483	BDBG_MSG(("Video PID[%d] = 0x%04x\n",p_idx,pmt.elementary_PID ));
5484	if (!ch.video_pid)
5485	{
5486	ch.video_pid = pmt.elementary_PID;
5487	ch.video_type = stream_type->codec_id;
5488	}
5489	}
5490	else if ((stream_type = bdecode_supported_audio(pmt.stream_type)) != NULL)
5491	{
5492	BDBG_MSG(("Audio PID[%d] = 0x%04x\n",ch.num_audio,pmt.elementary_PID ));
5493	if (!ch.audio_pid[ch.num_audio] && (ch.num_audio < MAX_AUDIO_PIDS))
5494	{
5495	ch.audio_pid[ch.num_audio] = pmt.elementary_PID;
5496	ch.audio_type[ch.num_audio] = stream_type->codec_id;
5497	if (0 == ch.num_audio)
5498	ch.cur_audio = 0;
5499	ch.num_audio++;
5500	}
5501	}
5502	}
5503
5504	if (ch.video_pid \|\| ch.audio_pid[0])
5505	{
5506	bool clear = true;
5507	unsigned short pid;
5508
5509	/* if has video, use video first */
5510	if (ch.video_pid)
5511	pid = ch.video_pid;
5512	else
5513	pid = ch.audio_pid[0];
5514	/* correct pid in case video pid carries too few frames */
5515	if(ch.pcr_pid == ch.audio_pid[0])
5516	pid = ch.audio_pid[0];
5517
5518	if (ca_pid != 0x0000)
5519	clear = chm_check_sc(p_chm, p_chm->band, pid);
5520
5521	if (clear)
5522	{
5523	#if 0
5524	p_chm->chm_pat_evt.type = eCHM_EVT_STATUS;
5525	p_chm->chm_pat_evt.id = eCHM_STATUS_PAT;
5526	p_chm->chm_pat_evt.ticks = 0;
5527	chm_post_app_event(p_chm,&p_chm->chm_pat_evt);
5528	#endif
5529	ch.frequency_khz = freq_khz;
5530	chm_add_vsb_channel(p_chm,&ch);
5531	result += 1;
5532
5533	#if 0
5534	/* in the chm_scan_psi, it will post STATUS_PAT. but sometimes the event is missed.. don't know why.. */
5535	if (p_app->screen_id == eSCREEN_CH_SCAN_PROGRESS) {
5536	bos_sleep(100);
5537	}
5538	#endif
5539	}
5540	}
5541	}
5542
5543	if (result > 0) {
5544	/* first channel to start after a new scan */
5545	p_app->cur_ch_num = 0;
5546	}
5547
5548	return result;
5549	}
5550	#endif

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source: svn/newcon3bcm2_21bu/dta/src/app/ntia/chan_mgr.c

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