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bvbi_ttd.c

Last change on this file was 2, checked in by phkim, 11 years ago

1.phkim

revision copy newcon3sk r27

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1	/***************************************************************************
2	* Copyright (c) 2003-2009, 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: bvbi_ttd.c $
11	* $brcm_Revision: Hydra_Software_Devel/3 $
12	* $brcm_Date: 12/21/09 7:06p $
13	*
14	* Module Description:
15	*
16	* Revision History:
17	*
18	* $brcm_Log: /magnum/portinginterface/vbi/7400/bvbi_ttd.c $
19	*
20	* Hydra_Software_Devel/3 12/21/09 7:06p darnstein
21	* SW7550-120: Add support for SECAM variants.
22	*
23	* Hydra_Software_Devel/2 12/3/08 7:57p darnstein
24	* PR45819: New, more modular form of most BVBI source files.
25	*
26	* Hydra_Software_Devel/43 7/30/08 8:40p darnstein
27	* PR43926,PR43413: Workaround for TTD addressing error in hardware.
28	* Decodes at most one line of teletext per video field. Will not
29	* corrrupt memory if input signal actually contains more teletext.
30	*
31	* Hydra_Software_Devel/42 7/30/08 5:41p darnstein
32	* PR43926: A basic solution to the memory addressing problem is in place.
33	* It can decode one line of teletext. If more teletext is present, then
34	* memory corruption will occur. This danger will be eliminated next.
35	*
36	* Hydra_Software_Devel/41 5/12/08 2:56p darnstein
37	* PR42416: Implement Grossman's work-around for the conflict between VDEC
38	* frame comb filter and teletext decoder (TTD).
39	*
40	* Hydra_Software_Devel/40 4/2/08 1:34p darnstein
41	* PR38531,PR40702:
42	* 1. Use magic line mask setting discovered by Brad Delanghe.
43	* 2. Change line numbering.
44	*
45	* Hydra_Software_Devel/39 3/11/08 6:52p darnstein
46	* PR23201: Change start_delay of teletext decoder core to 0, in the case
47	* of PAL video input. Per Brad Grossman.
48	*
49	* Hydra_Software_Devel/38 1/18/08 1:09p darnstein
50	* PR32758,PR38531: Fix bug in programming decoder black level register.
51	* Thank you Ming Dei.
52	*
53	* Hydra_Software_Devel/37 1/11/08 4:37p darnstein
54	* PR32758,PR38531: Corrected black_level setting (thank you hardware
55	* architect).
56	*
57	* Hydra_Software_Devel/36 1/2/08 2:27p darnstein
58	* PR32758: use PAL decoder settings from Brad Grossman.
59	*
60	* Hydra_Software_Devel/35 1/17/07 5:32p darnstein
61	* PR26464: correctly handle teletext output to multiple VECs
62	*
63	* Hydra_Software_Devel/34 1/2/07 4:21p darnstein
64	* PR26872: Mechanically add SECAM to all cases where PAL formats are
65	* accepted.
66	*
67	* Hydra_Software_Devel/33 8/31/06 2:09p darnstein
68	* PR23869: clean up the handling of multiple VECs and VDECs.
69	*
70	* Hydra_Software_Devel/32 8/18/06 6:51p darnstein
71	* PR23178: basic compile on 93563 is possible.
72	*
73	* Hydra_Software_Devel/31 2/21/06 6:20p darnstein
74	* PR18343: Move top line for teletext output up raster by 1 (numerically
75	* smaller by 1), but ONLY for PAL.
76	*
77	* Hydra_Software_Devel/30 1/16/06 12:40p darnstein
78	* PR18903: Use BSTD_UNUSED macro to suppress compiler warnings in
79	* VxWorks.
80	*
81	* Hydra_Software_Devel/29 12/22/05 5:53p darnstein
82	* PR18234: use some filter_phase_adjustment settings provided by Brad
83	* Grossman.
84	*
85	* Hydra_Software_Devel/28 9/23/05 2:47p darnstein
86	* PR13750: Proper use of BERR_TRACE and BERR_CODEs.
87	*
88	* Hydra_Software_Devel/27 9/19/05 2:57p darnstein
89	* PR17151: Check for chip name where needed. Also, convert to new scheme
90	* for testing chip revisions (BCHP_VER).
91	*
92	* Hydra_Software_Devel/26 6/15/05 12:03p darnstein
93	* PR 14487: bring up VBI decoding on 97038-C1.
94	*
95	* Hydra_Software_Devel/25 4/14/05 12:01p darnstein
96	* PR 14720: For each reference to BCHP_REV_B[01], add a BCHP_REV_B2.
97	* Still untested.
98	*
99	* Hydra_Software_Devel/24 4/4/05 11:53a darnstein
100	* PR 13952: BCM97038-C0 bringup.
101	*
102	* Hydra_Software_Devel/23 3/11/05 3:49p darnstein
103	* PR 14426: use new _0 names for VDEC cores.
104	*
105	* Hydra_Software_Devel/22 1/5/05 4:27p jasonh
106	* PR 13700: Fixed VBI compile issues for 7038 C0.
107	*
108	* Hydra_Software_Devel/21 9/21/04 2:02p darnstein
109	* PR 12728: Replace a line of code that was too long for some compilers
110	* to handle.
111	*
112	* Hydra_Software_Devel/20 7/16/04 7:07p darnstein
113	* PR 9080: merge in 656 input and output work. Some testing and debugging
114	* remains to be done.
115	*
116	* Hydra_Software_Devel/I656/1 7/8/04 7:45p darnstein
117	* ITU-R 656 decoding of VBI seems to be ready for bring up. Expect bugs.
118	*
119	* Hydra_Software_Devel/19 6/17/04 5:57p darnstein
120	* PR 9080: get decoding working for 7038-B0 hardware.
121	*
122	* Hydra_Software_Devel/18 5/24/04 5:08p jasonh
123	* PR 11189: Merge down from B0 to main-line
124	*
125	* Hydra_Software_Devel/Refsw_Devel_7038_B0/1 4/19/04 2:45p darnstein
126	* PR 9080: Compilation is possible with 7038 B0. Correct execution is not
127	* likely.
128	*
129	* Hydra_Software_Devel/17 4/2/04 6:42p darnstein
130	* PR 9080: Allow NTSC-J video format.
131	*
132	* Hydra_Software_Devel/16 3/26/04 1:47p darnstein
133	* PR 9080: remove some kludgey code regarding choice of top or bottom
134	* field.
135	*
136	* Hydra_Software_Devel/15 3/18/04 11:15a darnstein
137	* PR 9080: commented out some debugging code.
138	*
139	* Hydra_Software_Devel/14 3/12/04 5:52p darnstein
140	* PR 9080: Teletext for NTSC is working, with a kludge for an A0 hardware
141	* flaw. There is a lot of debug code that will be removed later.
142	*
143	* Hydra_Software_Devel/13 3/4/04 4:28p darnstein
144	* PR 9080: improve allocation of teletext private data.
145	*
146	* Hydra_Software_Devel/12 3/2/04 4:41p darnstein
147	* PR 9080: many fixes and additions discovered during bring-up.
148	*
149	* Hydra_Software_Devel/11 2/27/04 6:10p darnstein
150	* PR 9080: handle all of the PAL formats. Fix misuse of BDBG_ASSERT
151	* macro.
152	*
153	* Hydra_Software_Devel/10 2/19/04 2:51p darnstein
154	* PR 9493: Use new PAL format enums.
155	*
156	* Hydra_Software_Devel/9 2/6/04 11:50a darnstein
157	* PR 9080: better handle VBI decoding errors.
158	*
159	* Hydra_Software_Devel/8 2/3/04 4:43p darnstein
160	* PR 9080: fix logic errors in handling decoding errors. A few other
161	* minor fixes.
162	*
163	* Hydra_Software_Devel/7 1/23/04 4:08p darnstein
164	* PR 9080: Routines used in (pseudo) ISRs have no critical sections.
165	*
166	* Hydra_Software_Devel/6 12/19/03 5:07p darnstein
167	* PR 9080: adapt to changed BAVC enum for field polarity.
168	*
169	* Hydra_Software_Devel/5 10/16/03 4:26p darnstein
170	* Use revised #define BAVC_SourceId_Vdec0.
171	*
172	* Hydra_Software_Devel/4 10/16/03 1:21p darnstein
173	* Fix usage of BDBG_ENTER(), BDBG_LEAVE().
174	*
175	* Hydra_Software_Devel/3 9/29/03 5:00p darnstein
176	* Put in critical sections.
177	*
178	* Hydra_Software_Devel/2 9/25/03 4:48p darnstein
179	* BVBI module is mostly complete. The only things that I know are missing
180	* are the critical sections, 656 support, macrovision support, and LOTS
181	* OF TESTING.
182	*
183	* Hydra_Software_Devel/1 9/22/03 5:43p darnstein
184	* Teletext specific code to support VBI decoding.
185	*
186	***************************************************************************/
187
188	#include "bstd.h" /* standard types */
189	#include "bdbg.h" /* Dbglib */
190	#include "bkni.h" /* For critical sections */
191	#include "bvbi.h" /* VBI processing, this module. */
192	#include "bvbi_priv.h" /* VBI internal data structures */
193
194	#if (BVBI_P_NUM_VDEC >= 1) / { /
195
196	#include "bchp_ttd_0.h" /* RDB info for TTD core */
197
198	#define TTD_0_ACKNOWLEDGE_READ 1
199
200	BDBG_MODULE(BVBI);
201
202
203	/***************************************************************************
204	* Forward declarations of static (private) functions
205	***************************************************************************/
206
207
208	/***************************************************************************
209	* Implementation of "BVBI_" API functions
210	***************************************************************************/
211
212
213	/***************************************************************************
214	*
215	*/
216	void BVBI_P_TT_Dec_Init (BREG_Handle hReg, uint32_t ulCoreOffset)
217	{
218	uint32_t ulReg = 0x0;
219
220	BDBG_ENTER(BVBI_P_TT_Dec_Init);
221
222	BKNI_EnterCriticalSection();
223
224	BREG_Write32 (hReg, BCHP_TTD_0_reset + ulCoreOffset, ulReg);
225
226	BKNI_LeaveCriticalSection();
227
228	BDBG_LEAVE(BVBI_P_TT_Dec_Init);
229	}
230
231
232	/***************************************************************************
233	*
234	*/
235	BERR_Code BVBI_P_TT_Dec_Program (
236	BREG_Handle hReg,
237	BMEM_Handle hMem,
238	BAVC_SourceId eSource,
239	bool bActive,
240	BFMT_VideoFmt eVideoFormat,
241	#ifdef BVBI_P_TTD_SCB2_ERROR
242	uint8_t* topTTscratch,
243	uint8_t* botTTscratch,
244	#endif
245	BVBI_P_TTData* topData,
246	BVBI_P_TTData* botData)
247	{
248	uint32_t H_TopMask;
249	uint32_t H_BotMask;
250	uint32_t H_TopInsert;
251	uint32_t H_BotInsert;
252	uint32_t H_AddrTop;
253	uint32_t H_AddrBot;
254	uint32_t H_Control;
255	uint32_t H_Lock;
256	uint32_t H_Shift;
257	uint32_t H_Filter;
258	uint32_t H_TeletextFreq;
259	uint32_t H_Window;
260	uint32_t H_FramCod;
261	uint32_t H_TfFcSel;
262	uint32_t H_BfFcSel;
263	uint32_t H_BlkLev;
264
265	uint32_t ulTopMaskReg;
266	uint32_t ulBotMaskReg;
267	uint32_t ulTopInsertReg;
268	uint32_t ulBotInsertReg;
269	/* uint32_t ulAddrTopReg; */
270	/* uint32_t ulAddrBotReg; */
271	uint32_t ulControlReg;
272	uint32_t ulLockReg;
273	uint32_t ulShiftReg;
274	uint32_t ulFilterReg;
275	uint32_t ulTeletextFreqReg;
276	uint32_t ulWindowReg;
277	uint32_t ulFramCodReg;
278	uint32_t ulTfFcSelReg;
279	uint32_t ulBfFcSelReg;
280	uint32_t ulCoreOffset;
281	uint32_t ulBlkLevReg;
282
283	uint8_t ucNumLinesTF;
284	uint8_t ucNumLinesBF;
285	uint8_t ucBytesPerLine;
286	uint16_t usStartLineTF;
287	uint16_t usStartLineBF;
288
289	int index;
290	uint32_t offset;
291	BERR_Code eErr;
292
293	BDBG_ENTER(BVBI_P_TT_Dec_Program);
294
295	/* Figure out which decoder core to use */
296	switch (eSource)
297	{
298	case BAVC_SourceId_eVdec0:
299	H_TopMask = BCHP_TTD_0_tf_mask;
300	H_BotMask = BCHP_TTD_0_bf_mask;
301	H_TopInsert = BCHP_TTD_0_tf_insert;
302	H_BotInsert = BCHP_TTD_0_bf_insert;
303	H_AddrTop = BCHP_TTD_0_write_address_top;
304	H_AddrBot = BCHP_TTD_0_write_address_bottom;
305	H_Control = BCHP_TTD_0_control;
306	H_Lock = BCHP_TTD_0_lock_control;
307	H_Shift = BCHP_TTD_0_shift_control;
308	H_Filter = BCHP_TTD_0_filter_control;
309	H_TeletextFreq = BCHP_TTD_0_teletext_freq;
310	H_Window = BCHP_TTD_0_window_control;
311	H_FramCod = BCHP_TTD_0_framing_code;
312	H_TfFcSel = BCHP_TTD_0_tf_fc_select;
313	H_BfFcSel = BCHP_TTD_0_bf_fc_select;
314	ulCoreOffset = 0x0;
315	H_BlkLev = BCHP_TTD_0_black_level;
316	index = 0;
317	break;
318	#if (BVBI_P_NUM_VDEC > 1)
319	case BAVC_SourceId_eVdec1:
320	H_TopMask = BCHP_TTD_1_tf_mask;
321	H_BotMask = BCHP_TTD_1_bf_mask;
322	H_TopInsert = BCHP_TTD_1_tf_insert;
323	H_BotInsert = BCHP_TTD_1_bf_insert;
324	H_AddrTop = BCHP_TTD_1_write_address_top;
325	H_AddrBot = BCHP_TTD_1_write_address_bottom;
326	H_Control = BCHP_TTD_1_control;
327	H_Lock = BCHP_TTD_1_lock_control;
328	H_Shift = BCHP_TTD_1_shift_control;
329	H_Filter = BCHP_TTD_1_filter_control;
330	H_TeletextFreq = BCHP_TTD_1_teletext_freq;
331	H_Window = BCHP_TTD_1_window_control;
332	H_FramCod = BCHP_TTD_1_framing_code;
333	H_TfFcSel = BCHP_TTD_1_tf_fc_select;
334	H_BfFcSel = BCHP_TTD_1_bf_fc_select;
335	ulCoreOffset = BCHP_TTD_1_reset - BCHP_TTD_0_reset;
336	break;
337	#endif
338	default:
339	/* This should never happen! This parameter was checked by
340	BVBI_Decode_Create() */
341	BDBG_LEAVE(BVBI_P_TT_Dec_Program);
342	return BERR_TRACE(BERR_INVALID_PARAMETER);
343	break;
344	}
345
346	/* TODO: handle little endian vs. big endian */
347
348	/* If user wants to turn off teletext processing, just reset the
349	entire core. */
350	if (!bActive)
351	{
352	BVBI_P_TT_Dec_Init (hReg, ulCoreOffset);
353	BDBG_LEAVE(BVBI_P_TT_Dec_Program);
354	return BERR_SUCCESS;
355	}
356
357	BKNI_EnterCriticalSection();
358
359	/* Start programming the TTD control register */
360	ulControlReg = BREG_Read32 (hReg, H_Control);
361	ulControlReg &= ~(
362	BCHP_MASK (TTD_0_control, enable_tf ) \|
363	BCHP_MASK (TTD_0_control, enable_bf ) );
364	ulControlReg \|= (
365	BCHP_FIELD_DATA (TTD_0_control, enable_tf, 1) \|
366	BCHP_FIELD_DATA (TTD_0_control, enable_bf, 1) );
367
368	/* Read the lock control register */
369	ulLockReg = BREG_Read32 (hReg, H_Lock);
370
371	/* Program the top insert register */
372	ulTopInsertReg = BREG_Read32 (hReg, H_TopInsert);
373	ulTopInsertReg &= ~(
374	BCHP_MASK (TTD_0_tf_insert, Insert ) );
375	ulTopInsertReg \|= (
376	BCHP_FIELD_DATA (TTD_0_tf_insert, Insert, 0) );
377	BREG_Write32 (hReg, H_TopInsert, ulTopInsertReg);
378
379	/* Program the bottom insert register */
380	ulBotInsertReg = BREG_Read32 (hReg, H_BotInsert);
381	ulBotInsertReg &= ~(
382	BCHP_MASK (TTD_0_bf_insert, Insert ) );
383	ulBotInsertReg \|= (
384	BCHP_FIELD_DATA (TTD_0_bf_insert, Insert, 0) );
385	BREG_Write32 (hReg, H_BotInsert, ulBotInsertReg);
386
387	/* Start programming the shift control register */
388	ulShiftReg = BREG_Read32 (hReg, H_Shift);
389	ulShiftReg &= ~(
390	BCHP_MASK (TTD_0_shift_control, shift_direction ) \|
391	BCHP_MASK (TTD_0_shift_control, signal_threshold ) );
392	ulShiftReg \|= (
393	#if (BSTD_CPU_ENDIAN == BSTD_ENDIAN_LITTLE)
394	BCHP_FIELD_ENUM (TTD_0_shift_control, shift_direction, MSBToLSB) \|
395	#else
396	BCHP_FIELD_ENUM (TTD_0_shift_control, shift_direction, LSBToMSB) \|
397	#endif
398	BCHP_FIELD_DATA (TTD_0_shift_control, signal_threshold, 0x07) );
399
400	/* Read the filter control register */
401	ulFilterReg = BREG_Read32 (hReg, H_Filter);
402
403	/* Read the frequency register */
404	ulTeletextFreqReg = BREG_Read32 (hReg, H_TeletextFreq);
405
406	/* Read the window control register */
407	ulWindowReg = BREG_Read32 (hReg, H_Window);
408
409	/* Start programming the framing code register */
410	ulFramCodReg = BREG_Read32 (hReg, H_FramCod);
411
412	/* Start programming the top field framing code selection register */
413	ulTfFcSelReg = BREG_Read32 (hReg, H_TfFcSel);
414	ulTfFcSelReg &= ~BCHP_MASK (TTD_0_tf_fc_select, select );
415	ulTfFcSelReg \|= BCHP_FIELD_DATA (TTD_0_tf_fc_select, select, 0x0);
416
417	/* Start programming the bottom field framing code selection register */
418	ulBfFcSelReg = BREG_Read32 (hReg, H_BfFcSel);
419	ulBfFcSelReg &= ~BCHP_MASK (TTD_0_bf_fc_select, select );
420	ulBfFcSelReg \|= BCHP_FIELD_DATA (TTD_0_bf_fc_select, select, 0x0);
421
422	/* Select video format */
423	switch (eVideoFormat)
424	{
425	case BFMT_VideoFmt_eNTSC:
426	case BFMT_VideoFmt_eNTSC_J:
427	/* NTSC specific settings */
428
429	ucNumLinesTF = 11;
430	ucNumLinesBF = 11;
431	usStartLineTF = 11;
432	usStartLineBF = 273;
433	ucBytesPerLine = 34;
434
435	ulControlReg &= ~(
436	BCHP_MASK (TTD_0_control, startline_tf ) \|
437	BCHP_MASK (TTD_0_control, startline_bf ) \|
438	BCHP_MASK (TTD_0_control, start_delay ) \|
439	BCHP_MASK (TTD_0_control, teletext_mode ) );
440	ulControlReg \|= (
441	BCHP_FIELD_DATA (TTD_0_control, startline_tf, usStartLineTF - 2) \|
442	BCHP_FIELD_DATA (TTD_0_control, startline_bf, usStartLineBF - 264) \|
443	BCHP_FIELD_DATA (TTD_0_control, start_delay, 0x01) \|
444	BCHP_FIELD_ENUM (TTD_0_control, teletext_mode, NABTS) );
445
446	/* Program the TTD lock register */
447	ulLockReg &= ~(
448	BCHP_MASK (TTD_0_lock_control, frame_code_lines ) \|
449	BCHP_MASK (TTD_0_lock_control, write_inhibit ) );
450	ulLockReg \|= (
451	BCHP_FIELD_DATA (TTD_0_lock_control, frame_code_lines, 0x10) \|
452	BCHP_FIELD_DATA (TTD_0_lock_control, write_inhibit, 0) );
453
454	ulShiftReg &=
455	~BCHP_MASK (TTD_0_shift_control, shift_direction );
456	ulShiftReg \|=
457	#if (BSTD_CPU_ENDIAN == BSTD_ENDIAN_LITTLE)
458	BCHP_FIELD_ENUM (TTD_0_shift_control, shift_direction, MSBToLSB);
459	#else
460	BCHP_FIELD_ENUM (TTD_0_shift_control, shift_direction, LSBToMSB);
461	#endif
462
463	/* Program the filter control register */
464	ulFilterReg &= ~(
465	BCHP_MASK (TTD_0_filter_control, filter_phase_adjustment ) \|
466	BCHP_MASK (TTD_0_filter_control, min_signal_mean ) \|
467	BCHP_MASK (TTD_0_filter_control, avg_threshold ) \|
468	BCHP_MASK (TTD_0_filter_control, last_position ) \|
469	BCHP_MASK (TTD_0_filter_control, fc_one_bit_off ) );
470	ulFilterReg \|= (
471	BCHP_FIELD_DATA (TTD_0_filter_control, filter_phase_adjustment, 0x6b) \|
472	BCHP_FIELD_DATA (TTD_0_filter_control, min_signal_mean, 0x4) \|
473	BCHP_FIELD_DATA (TTD_0_filter_control, avg_threshold, 0x2) \|
474	BCHP_FIELD_DATA (TTD_0_filter_control, last_position, 0x0) \|
475	BCHP_FIELD_DATA (TTD_0_filter_control, fc_one_bit_off, 0x0) );
476
477	ulTeletextFreqReg &=
478	~BCHP_MASK (TTD_0_teletext_freq, Frequency );
479	ulTeletextFreqReg \|=
480	BCHP_FIELD_DATA (TTD_0_teletext_freq, Frequency, 0x1b26c978);
481
482	ulWindowReg &= ~(
483	BCHP_MASK (TTD_0_window_control, enable ) \|
484	BCHP_MASK (TTD_0_window_control, window_lock_lines ) \|
485	BCHP_MASK (TTD_0_window_control, window_length ) );
486	ulWindowReg \|= (
487	BCHP_FIELD_ENUM (TTD_0_window_control, enable, ENABLED ) \|
488	BCHP_FIELD_DATA (TTD_0_window_control, window_lock_lines, 1) \|
489	BCHP_FIELD_DATA (TTD_0_window_control, window_length, 0x74) );
490
491	ulFramCodReg &= ~(
492	BCHP_MASK (TTD_0_framing_code, framing_code_1 ) \|
493	BCHP_MASK (TTD_0_framing_code, framing_code_0 ) );
494	ulFramCodReg \|= (
495	BCHP_FIELD_DATA (
496	TTD_0_framing_code, framing_code_1, BVBI_TT_NABTS_FRAMING_CODE) \|
497	BCHP_FIELD_DATA (
498	TTD_0_framing_code, framing_code_0, BVBI_TT_NABTS_FRAMING_CODE) );
499
500	/* Continue programming the black level register */
501	ulBlkLevReg = BREG_Read32 (hReg, H_BlkLev);
502	ulBlkLevReg &= ~BCHP_MASK (TTD_0_black_level, black_level );
503	ulBlkLevReg \|= BCHP_FIELD_DATA (TTD_0_black_level, black_level, 0x49);
504
505	break;
506
507	case BFMT_VideoFmt_ePAL_B:
508	case BFMT_VideoFmt_ePAL_B1:
509	case BFMT_VideoFmt_ePAL_D:
510	case BFMT_VideoFmt_ePAL_D1:
511	case BFMT_VideoFmt_ePAL_G:
512	case BFMT_VideoFmt_ePAL_H:
513	case BFMT_VideoFmt_ePAL_K:
514	case BFMT_VideoFmt_ePAL_I:
515	case BFMT_VideoFmt_ePAL_M:
516	case BFMT_VideoFmt_ePAL_N:
517	case BFMT_VideoFmt_ePAL_NC:
518	case BFMT_VideoFmt_eSECAM_L:
519	case BFMT_VideoFmt_eSECAM_B:
520	case BFMT_VideoFmt_eSECAM_G:
521	case BFMT_VideoFmt_eSECAM_D:
522	case BFMT_VideoFmt_eSECAM_K:
523	case BFMT_VideoFmt_eSECAM_H:
524	/* 576I settings */
525
526	ucNumLinesTF = 17;
527	ucNumLinesBF = 18;
528	usStartLineTF = 7;
529	usStartLineBF = 319;
530	/* PR18343 */
531	usStartLineTF -= 1;
532
533	/* Working with 93563-C0 */
534	usStartLineBF -= 1;
535
536	#if (BVDC_P_3DCOMB_TTD_CONFLICT)
537	usStartLineTF -= 1;
538	usStartLineBF -= 1;
539	#endif
540
541	ucBytesPerLine = 43;
542
543	ulControlReg &= ~(
544	BCHP_MASK (TTD_0_control, startline_tf ) \|
545	BCHP_MASK (TTD_0_control, startline_bf ) \|
546	BCHP_MASK (TTD_0_control, start_delay ) \|
547	BCHP_MASK (TTD_0_control, teletext_mode ) );
548	ulControlReg \|= (
549	BCHP_FIELD_DATA (TTD_0_control, startline_tf, usStartLineTF - 2) \|
550	BCHP_FIELD_DATA (TTD_0_control, startline_bf, usStartLineBF - 314) \|
551	BCHP_FIELD_DATA (TTD_0_control, start_delay, 0) \|
552	BCHP_FIELD_ENUM (TTD_0_control, teletext_mode, ETSTeletext) );
553
554	/* Program the TTD lock register */
555	ulLockReg &= ~(
556	BCHP_MASK (TTD_0_lock_control, frame_code_lines ) \|
557	BCHP_MASK (TTD_0_lock_control, write_inhibit ) );
558	ulLockReg \|= (
559	BCHP_FIELD_DATA (TTD_0_lock_control, frame_code_lines, 0x02) \|
560	BCHP_FIELD_DATA (TTD_0_lock_control, write_inhibit, 0) );
561
562	ulShiftReg &=
563	~BCHP_MASK (TTD_0_shift_control, shift_direction );
564	ulShiftReg \|=
565	#if (BSTD_CPU_ENDIAN == BSTD_ENDIAN_LITTLE)
566	BCHP_FIELD_ENUM (TTD_0_shift_control, shift_direction, MSBToLSB);
567	#else
568	BCHP_FIELD_ENUM (TTD_0_shift_control, shift_direction, LSBToMSB);
569	#endif
570
571	/* Program the filter control register */
572	ulFilterReg &= ~(
573	BCHP_MASK (TTD_0_filter_control, filter_phase_adjustment ) \|
574	BCHP_MASK (TTD_0_filter_control, min_signal_mean ) \|
575	BCHP_MASK (TTD_0_filter_control, avg_threshold ) \|
576	BCHP_MASK (TTD_0_filter_control, last_position ) \|
577	BCHP_MASK (TTD_0_filter_control, fc_one_bit_off ) );
578	ulFilterReg \|= (
579	BCHP_FIELD_DATA (TTD_0_filter_control, filter_phase_adjustment, 0x23) \|
580	BCHP_FIELD_DATA (TTD_0_filter_control, min_signal_mean, 0x4) \|
581	BCHP_FIELD_DATA (TTD_0_filter_control, avg_threshold, 0x1) \|
582	BCHP_FIELD_DATA (TTD_0_filter_control, last_position, 0x0) \|
583	BCHP_FIELD_DATA (TTD_0_filter_control, fc_one_bit_off, 0x0) );
584
585	ulTeletextFreqReg &=
586	~BCHP_MASK (TTD_0_teletext_freq, Frequency );
587	ulTeletextFreqReg \|=
588	BCHP_FIELD_DATA (TTD_0_teletext_freq, Frequency, 0x20e38e39);
589
590	ulWindowReg &= ~(
591	BCHP_MASK (TTD_0_window_control, enable ) \|
592	BCHP_MASK (TTD_0_window_control, window_lock_lines ) \|
593	BCHP_MASK (TTD_0_window_control, window_length ) );
594	ulWindowReg \|= (
595	BCHP_FIELD_ENUM (TTD_0_window_control, enable, DISABLED) \|
596	BCHP_FIELD_DATA (TTD_0_window_control, window_lock_lines, 0) \|
597	BCHP_FIELD_DATA (TTD_0_window_control, window_length, 0x74) );
598
599	ulFramCodReg &= ~(
600	BCHP_MASK (TTD_0_framing_code, framing_code_1 ) \|
601	BCHP_MASK (TTD_0_framing_code, framing_code_0 ) );
602	ulFramCodReg \|= (
603	BCHP_FIELD_DATA (
604	TTD_0_framing_code, framing_code_1, BVBI_TT_ETS_FRAMING_CODE) \|
605	BCHP_FIELD_DATA (
606	TTD_0_framing_code, framing_code_0, BVBI_TT_ETS_FRAMING_CODE) );
607
608	/* Continue programming the black level register */
609	ulBlkLevReg = BREG_Read32 (hReg, H_BlkLev);
610	ulBlkLevReg &= ~BCHP_MASK (TTD_0_black_level, black_level );
611	ulBlkLevReg \|= BCHP_FIELD_DATA (TTD_0_black_level, black_level, 240);
612
613	break;
614
615	default:
616	BKNI_LeaveCriticalSection();
617	BDBG_LEAVE(BVBI_P_TT_Dec_Program);
618	return BERR_TRACE (BERR_INVALID_PARAMETER);
619	break;
620	}
621
622	/* Program the mask registers */
623	/* Magic number discovered by the two Brads. Works for PAL. */
624	ulTopMaskReg = BCHP_FIELD_DATA (TTD_0_tf_mask, Mask, 0x3FFFE);
625	BREG_Write32 (hReg, H_TopMask, ulTopMaskReg);
626	ulBotMaskReg = BCHP_FIELD_DATA (TTD_0_bf_mask, Mask, 0x3FFFE);
627	BREG_Write32 (hReg, H_BotMask, ulBotMaskReg);
628
629	/* Finish programming the black level register */
630	BREG_Write32 (hReg, H_BlkLev, ulBlkLevReg);
631
632	/* Prepare to collect data in the decode handle */
633	#ifdef BVBI_P_TTD_SCB2_ERROR
634	eErr = BERR_TRACE (BMEM_ConvertAddressToOffset (
635	hMem, topTTscratch, &offset));
636	offset >>= 2;
637	#else
638	eErr = BERR_TRACE (BMEM_ConvertAddressToOffset (
639	hMem, topData->pucData, &offset));
640	#endif
641	BDBG_ASSERT (eErr == BERR_SUCCESS);
642	BREG_Write32 ( hReg, H_AddrTop, offset);
643	#ifdef BVBI_P_TTD_SCB2_ERROR
644	eErr = BERR_TRACE (BMEM_ConvertAddressToOffset (
645	hMem, botTTscratch, &offset));
646	offset >>= 2;
647	#else
648	eErr = BERR_TRACE (BMEM_ConvertAddressToOffset (
649	hMem, botData->pucData, &offset));
650	#endif
651	BDBG_ASSERT (eErr == BERR_SUCCESS);
652	BREG_Write32 ( hReg, H_AddrBot, offset);
653
654	/* Update the field handles that receive the data */
655	topData->ucLines = ucNumLinesTF;
656	topData->ucLineSize = ucBytesPerLine;
657	botData->ucLines = ucNumLinesBF;
658	botData->ucLineSize = ucBytesPerLine;
659
660	/* write the ten registers with updated values */
661	BREG_Write32 ( hReg, H_Control, ulControlReg );
662	BREG_Write32 ( hReg, H_Lock, ulLockReg );
663	BREG_Write32 ( hReg, H_Shift, ulShiftReg );
664	BREG_Write32 ( hReg, H_Filter, ulFilterReg );
665	BREG_Write32 ( hReg, H_TeletextFreq, ulTeletextFreqReg );
666	BREG_Write32 ( hReg, H_Window, ulWindowReg );
667	BREG_Write32 ( hReg, H_FramCod, ulFramCodReg );
668	BREG_Write32 ( hReg, H_TfFcSel, ulTfFcSelReg );
669	BREG_Write32 ( hReg, H_BfFcSel, ulBfFcSelReg );
670
671	BKNI_LeaveCriticalSection();
672	BDBG_LEAVE(BVBI_P_TT_Dec_Program);
673	return BERR_SUCCESS;
674	}
675
676	/* Debug code
677	volatile uint64_t passfail = 0;
678	volatile int error_index = 0;
679	volatile uint32_t error_store[64];
680	*/
681
682	/***************************************************************************
683	*
684	*/
685	uint32_t BVBI_P_TT_Decode_Data_isr (
686	BREG_Handle hReg,
687	BMEM_Handle hMem,
688	BAVC_SourceId eSource,
689	BFMT_VideoFmt eVideoFormat,
690	BAVC_Polarity polarity,
691	BVBI_P_TTData* pTTDataNext )
692	{
693	/*
694	Programming note: the implementation here assumes that the bitfield layout
695	within registers is the same for all teletext decoder cores in the chip.
696
697	If a chip is built that has multiple teletext decoder cores that are not
698	identical, then this routine will have to be redesigned.
699	*/
700	uint32_t ulReg;
701	uint32_t H_WrAdTop;
702	uint32_t H_WrAdBot;
703	uint32_t H_Status;
704	uint32_t ulStat;
705	uint32_t dataSize;
706	bool recognized_video_format;
707	uint32_t ulReg2 = 0x0;
708
709	uint8_t ucMinLines = 0;
710	uint8_t ucMinLineSize = 0;
711	uint32_t ulErrInfo = 0;
712
713	#ifndef BVBI_P_TTD_SCB2_ERROR
714	BERR_Code eErr;
715	uint32_t offset;
716	#endif
717
718	/* Debug code
719	uint8_t* printme = 0;
720	passfail <<= 1;
721	*/
722
723	#ifdef BVBI_P_TTD_SCB2_ERROR
724	BSTD_UNUSED (hMem);
725	#endif
726
727	BDBG_ENTER(BVBI_P_TT_Decode_Data_isr);
728
729	/* Figure out which decoder core to use */
730	switch (eSource)
731	{
732	case BAVC_SourceId_eVdec0:
733	H_Status = BCHP_TTD_0_status;
734	H_WrAdTop = BCHP_TTD_0_write_address_top;
735	H_WrAdBot = BCHP_TTD_0_write_address_bottom;
736	break;
737	#if (BVBI_P_NUM_VDEC > 1)
738	case BAVC_SourceId_eVdec1:
739	H_Status = BCHP_TTD_0_status;
740	H_WrAdTop = BCHP_TTD_0_write_address_top;
741	H_WrAdBot = BCHP_TTD_0_write_address_bottom;
742	break;
743	#endif
744	default:
745	/* This should never happen! This parameter was checked by
746	BVBI_Decode_Create() */
747	BDBG_LEAVE(BVBI_P_TT_Decode_Data_isr);
748	return (-1);
749	break;
750	}
751
752	/* A sanity check */
753	BDBG_ASSERT (
754	(polarity == BAVC_Polarity_eTopField) \|\|
755	(polarity == BAVC_Polarity_eBotField) );
756
757	/* Verify that field handle is big enough to hold the TT data */
758	switch (eVideoFormat)
759	{
760	case BFMT_VideoFmt_eNTSC:
761	case BFMT_VideoFmt_eNTSC_J:
762	ucMinLines = 11;
763	ucMinLineSize = 34;
764	break;
765	case BFMT_VideoFmt_ePAL_B:
766	case BFMT_VideoFmt_ePAL_B1:
767	case BFMT_VideoFmt_ePAL_D:
768	case BFMT_VideoFmt_ePAL_D1:
769	case BFMT_VideoFmt_ePAL_G:
770	case BFMT_VideoFmt_ePAL_H:
771	case BFMT_VideoFmt_ePAL_K:
772	case BFMT_VideoFmt_ePAL_I:
773	case BFMT_VideoFmt_ePAL_M:
774	case BFMT_VideoFmt_ePAL_N:
775	case BFMT_VideoFmt_ePAL_NC:
776	case BFMT_VideoFmt_eSECAM_L:
777	case BFMT_VideoFmt_eSECAM_B:
778	case BFMT_VideoFmt_eSECAM_G:
779	case BFMT_VideoFmt_eSECAM_D:
780	case BFMT_VideoFmt_eSECAM_K:
781	case BFMT_VideoFmt_eSECAM_H:
782	ucMinLines = 18;
783	ucMinLineSize = 43;
784	break;
785	default:
786	/* This should never happen! Checked in calling routine! */
787	recognized_video_format = false;
788	BDBG_ASSERT (recognized_video_format);
789	break;
790	}
791	dataSize = BVBI_P_TT_Size_Storage (ucMinLines, ucMinLineSize);
792
793	if (pTTDataNext->ucDataSize < dataSize)
794	{
795	ulErrInfo \|=
796	(BVBI_LINE_ERROR_FLDH_CONFLICT \| BVBI_LINE_ERROR_TELETEXT_NODATA);
797	BDBG_LEAVE(BVBI_P_TT_Decode_Data_isr);
798	return ulErrInfo;
799	}
800
801	/* Read the status register */
802	ulReg = BREG_Read32 (hReg, H_Status);
803
804	/* If top field */
805	if (polarity == BAVC_Polarity_eTopField)
806	{
807	/* Verify that the hardware has finished digesting the data, if any. */
808	ulStat = ulReg & BCHP_MASK (TTD_0_status, buffer_complete_tf);
809	if (ulStat == 0)
810	{
811	/* Inform of error */
812	ulErrInfo \|= BVBI_LINE_ERROR_TELETEXT_INCOMPLETE;
813	goto done;
814	}
815
816	/* Will acknowledge data to hardware */
817	ulReg2 \|= ulStat;
818
819	/* This bit should always be written? */
820	ulStat = ulReg & BCHP_MASK (TTD_0_status, interrupt_tf);
821	if (ulStat)
822	ulReg2 \|= ulStat;
823
824	/* Debug code
825	printme = pTTDataNext->pucData;
826	*/
827
828	/* Debug code
829	{
830	static unsigned int ticker = 0;
831	if ((++ticker % 4) == 0)
832	{
833	int index;
834	unsigned char* val = pTTDataNext->pucData + 4 + 2*43;
835	for (index = 0 ; index < 43 ; ++index)
836	*val++ = 0xab;
837	unsigned char* val = pTTDataNext->pucData + 4;
838	*val = 0xff;
839	}
840	}
841	*/
842
843	/* Give hardware a new place to write data to */
844	#ifndef BVBI_P_TTD_SCB2_ERROR
845	eErr = BERR_TRACE (BMEM_ConvertAddressToOffset (
846	hMem, pTTDataNext->pucData, &offset));
847	BDBG_ASSERT (eErr == BERR_SUCCESS);
848	BREG_Write32 (hReg, H_WrAdTop, offset);
849	#endif
850	}
851	else /* Bottom field */
852	{
853	/* Verify that the hardware has finished digesting the data, if any. */
854	ulStat = ulReg & BCHP_MASK (TTD_0_status, buffer_complete_bf);
855	if (ulStat == 0)
856	{
857	/* Inform of error */
858	ulErrInfo \|= BVBI_LINE_ERROR_TELETEXT_INCOMPLETE;
859	goto done;
860	}
861
862	/* Will acknowledge data to hardware */
863	ulReg2 \|= ulStat;
864
865	/* This bit should always be written? */
866	ulStat = ulReg & BCHP_MASK (TTD_0_status, interrupt_bf);
867	if (ulStat)
868	ulReg2 \|= ulStat;
869
870	/* Debug code
871	printme = pTTDataNext->pucData;
872	*/
873
874	/* Debug code
875	(uint32_t)(pTTDataNext->pucData)= 0x11;
876	*/
877
878	/* Give hardware a new place to write data to */
879	#ifndef BVBI_P_TTD_SCB2_ERROR
880	eErr = BERR_TRACE (BMEM_ConvertAddressToOffset (
881	hMem, pTTDataNext->pucData, &offset));
882	BDBG_ASSERT (eErr == BERR_SUCCESS);
883	BREG_Write32 (hReg, H_WrAdBot, offset);
884	#endif
885	}
886
887	/* Success, so finish describing the captured data */
888	pTTDataNext->ucLines = ucMinLines;
889	pTTDataNext->ucLineSize = ucMinLineSize;
890
891	/* Debug code
892	passfail \|= (uint64_t)(0x0000000000000001);
893	*/
894
895	done:
896
897	/* Debug code
898	ulStat = (
899	BCHP_MASK (TTD_0_status, buffer_complete_tf) \|
900	BCHP_MASK (TTD_0_status, buffer_complete_bf) );
901	if ((ulStat & ulReg) == ulStat)
902	{
903	printf ("%c: two fields of data are waiting\n",
904	(polarity == BAVC_Polarity_eTopField) ? 'T' : 'B');
905	}
906	if ((passfail & (uint64_t)(0x0000000000000001)) == 0)
907	{
908	error_store[error_index++] = ulReg;
909	error_index &= (sizeof(error_store)/sizeof(error_store[0]) - 1);
910	printf ("Decode error %c: %08x\n",
911	(polarity == BAVC_Polarity_eTopField) ? 'T' : 'B',
912	ulReg);
913	}
914	{
915	static uint32_t dcounter = 0;
916	++dcounter;
917	if ((dcounter > 80) && (dcounter < 150))
918	{
919	if (printme)
920	{
921	uint32_t mask = (uint32_t)printme;
922	uint8_t* p1 = printme + 4;
923	printf ("%d%c: decoded M:%08x : %02x %02x %02x %02x\n",
924	dcounter,
925	(polarity == BAVC_Polarity_eTopField) ? 'T' : 'B',
926	mask,
927	*p1,
928	*(p1 + ucMinLineSize),
929	(p1 + 2 ucMinLineSize),
930	(p1 + 3 ucMinLineSize));
931	}
932	else
933	{
934	printf ("%d%c: did not decode anything\n",
935	dcounter,
936	(polarity == BAVC_Polarity_eTopField) ? 'T' : 'B');
937	}
938	}
939	}
940	*/
941
942	/* Finish acknowledging data */
943	BREG_Write32 ( hReg, H_Status, ulReg2) ;
944
945	BDBG_LEAVE(BVBI_P_TT_Decode_Data_isr);
946	return ulErrInfo;
947	}
948
949	/***************************************************************************
950	* Static (private) functions
951	***************************************************************************/
952
953	#endif / } (BVBI_P_NUM_VDEC >= 1) /
954
955	/* End of file */

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source: svn/trunk/newcon3bcm2_21bu/magnum/portinginterface/vbi/7552/bvbi_ttd.c

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