bktr_card.c revision 116106
1/* $FreeBSD: head/sys/dev/bktr/bktr_card.c 116106 2003-06-09 19:11:01Z fjoe $ */
2
3/*
4 * This is part of the Driver for Video Capture Cards (Frame grabbers)
5 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
6 * chipset.
7 * Copyright Roger Hardiman and Amancio Hasty.
8 *
9 * bktr_card : This deals with identifying TV cards.
10 *               trying to find the card make and model of card.
11 *               trying to find the type of tuner fitted.
12 *               reading the configuration EEPROM.
13 *               locating i2c devices.
14 *
15 */
16
17/*
18 * 1. Redistributions of source code must retain the
19 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
20 * All rights reserved.
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 * 1. Redistributions of source code must retain the above copyright
26 *    notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 *    notice, this list of conditions and the following disclaimer in the
29 *    documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 *    must display the following acknowledgement:
32 *      This product includes software developed by Amancio Hasty and
33 *      Roger Hardiman
34 * 4. The name of the author may not be used to endorse or promote products
35 *    derived from this software without specific prior written permission.
36 *
37 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
38 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
39 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
41 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
42 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
43 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
46 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
47 * POSSIBILITY OF SUCH DAMAGE.
48 */
49
50#include "opt_bktr.h"		/* Include any kernel config options */
51
52#include <sys/param.h>
53#include <sys/systm.h>
54#include <sys/vnode.h>
55
56#ifdef __FreeBSD__
57
58#if (__FreeBSD_version < 500000)
59#include <machine/clock.h>              /* for DELAY */
60#endif
61
62#include <pci/pcivar.h>
63
64#if (__FreeBSD_version >=300000)
65#include <machine/bus_memio.h>	/* for bus space */
66#include <machine/bus.h>
67#include <sys/bus.h>
68#endif
69#endif
70
71#ifdef __NetBSD__
72#include <dev/ic/bt8xx.h>	/* NetBSD location for .h files */
73#include <dev/pci/bktr/bktr_reg.h>
74#include <dev/pci/bktr/bktr_core.h>
75#include <dev/pci/bktr/bktr_tuner.h>
76#include <dev/pci/bktr/bktr_card.h>
77#include <dev/pci/bktr/bktr_audio.h>
78#else
79#include <machine/ioctl_meteor.h>	/* Traditional location for .h files */
80#include <machine/ioctl_bt848.h>        /* extensions to ioctl_meteor.h */
81#include <dev/bktr/bktr_reg.h>
82#include <dev/bktr/bktr_core.h>
83#include <dev/bktr/bktr_tuner.h>
84#include <dev/bktr/bktr_card.h>
85#include <dev/bktr/bktr_audio.h>
86#endif
87
88/* Include the PCI Vendor definitions */
89#ifdef __NetBSD__
90#include <dev/pci/pcidevs.h>
91#include <dev/pci/pcireg.h>
92#endif
93
94/* Various defines */
95#define HAUP_REMOTE_INT_WADDR   0x30
96#define HAUP_REMOTE_INT_RADDR   0x31
97
98#define HAUP_REMOTE_EXT_WADDR   0x34
99#define HAUP_REMOTE_EXT_RADDR   0x35
100
101/* address of BTSC/SAP decoder chip */
102#define TDA9850_WADDR           0xb6
103#define TDA9850_RADDR           0xb7
104
105/* address of MSP3400C chip */
106#define MSP3400C_WADDR          0x80
107#define MSP3400C_RADDR          0x81
108
109/* address of DPL3518A chip */
110#define DPL3518A_WADDR          0x84
111#define DPL3518A_RADDR          0x85
112
113/* EEProm (128 * 8) on an STB card */
114#define X24C01_WADDR            0xae
115#define X24C01_RADDR            0xaf
116
117
118/* EEProm (256 * 8) on a Hauppauge card */
119/* and on most BT878s cards to store the sub-system vendor id */
120#define PFC8582_WADDR           0xa0
121#define PFC8582_RADDR		0xa1
122
123#if BKTR_SYSTEM_DEFAULT == BROOKTREE_PAL
124#define DEFAULT_TUNER   PHILIPS_PALI
125#else
126#define DEFAULT_TUNER   PHILIPS_NTSC
127#endif
128
129
130
131
132/*
133 * the data for each type of card
134 *
135 * Note:
136 *   these entried MUST be kept in the order defined by the CARD_XXX defines!
137 */
138static const struct CARDTYPE cards[] = {
139
140	{  CARD_UNKNOWN,			/* the card id */
141	  "Unknown",				/* the 'name' */
142	   NULL,				/* the tuner */
143	   0,					/* the tuner i2c address */
144	   0,					/* dbx unknown */
145	   0,
146	   0,
147	   0,					/* EEProm unknown */
148	   0,					/* EEProm unknown */
149	   { 0, 0, 0, 0, 0 },
150	   0 },					/* GPIO mask */
151
152	{  CARD_MIRO,				/* the card id */
153	  "Pinnacle/Miro TV",			/* the 'name' */
154	   NULL,				/* the tuner */
155	   0,					/* the tuner i2c address */
156	   0,					/* dbx unknown */
157	   0,
158	   0,
159	   0,					/* EEProm unknown */
160	   0,					/* size unknown */
161	   { 0x02, 0x01, 0x00, 0x0a, 1 },	/* audio MUX values */
162	   0x0f },				/* GPIO mask */
163
164	{  CARD_HAUPPAUGE,			/* the card id */
165	  "Hauppauge WinCast/TV",		/* the 'name' */
166	   NULL,				/* the tuner */
167	   0,					/* the tuner i2c address */
168	   0,					/* dbx is optional */
169	   0,
170	   0,
171	   PFC8582_WADDR,			/* EEProm type */
172	   (u_char)(256 / EEPROMBLOCKSIZE),	/* 256 bytes */
173	   { 0x00, 0x02, 0x01, 0x04, 1 },	/* audio MUX values */
174	   0x0f },				/* GPIO mask */
175
176	{  CARD_STB,				/* the card id */
177	  "STB TV/PCI",				/* the 'name' */
178	   NULL,				/* the tuner */
179	   0,					/* the tuner i2c address */
180	   0,					/* dbx is optional */
181	   0,
182	   0,
183	   X24C01_WADDR,			/* EEProm type */
184	   (u_char)(128 / EEPROMBLOCKSIZE),	/* 128 bytes */
185	   { 0x00, 0x01, 0x02, 0x02, 1 }, 	/* audio MUX values */
186	   0x0f },				/* GPIO mask */
187
188	{  CARD_INTEL,				/* the card id */
189	  "Intel Smart Video III/VideoLogic Captivator PCI", /* the 'name' */
190	   NULL,				/* the tuner */
191	   0,					/* the tuner i2c address */
192	   0,
193	   0,
194	   0,
195	   0,
196	   0,
197	   { 0, 0, 0, 0, 0 }, 			/* audio MUX values */
198	   0x00 },				/* GPIO mask */
199
200	{  CARD_IMS_TURBO,			/* the card id */
201	  "IMS TV Turbo",			/* the 'name' */
202	   NULL,				/* the tuner */
203	   0,					/* the tuner i2c address */
204	   0,					/* dbx is optional */
205	   0,
206	   0,
207	   PFC8582_WADDR,			/* EEProm type */
208	   (u_char)(256 / EEPROMBLOCKSIZE),	/* 256 bytes */
209	   { 0x01, 0x02, 0x01, 0x00, 1 },	/* audio MUX values */
210	   0x0f },				/* GPIO mask */
211
212        {  CARD_AVER_MEDIA,			/* the card id */
213          "AVer Media TV/FM",                   /* the 'name' */
214           NULL,                                /* the tuner */
215	   0,					/* the tuner i2c address */
216           0,                                   /* dbx is optional */
217           0,
218	   0,
219           0,                                   /* EEProm type */
220           0,                                   /* EEProm size */
221           { 0x0c, 0x08, 0x04, 0x00, 1 },	/* audio MUX values */
222	   0x1f },				/* GPIO mask */
223
224        {  CARD_OSPREY,				/* the card id */
225          "MMAC Osprey",                   	/* the 'name' */
226           NULL,                                /* the tuner */
227	   0,					/* the tuner i2c address */
228           0,                                   /* dbx is optional */
229	   0,
230           0,
231	   PFC8582_WADDR,			/* EEProm type */
232	   (u_char)(256 / EEPROMBLOCKSIZE),	/* 256 bytes */
233           { 0x00, 0x00, 0x00, 0x00, 0 },	/* audio MUX values */
234	   0 },					/* GPIO mask */
235
236        {  CARD_NEC_PK,                         /* the card id */
237          "NEC PK-UG-X017",                     /* the 'name' */
238           NULL,                                /* the tuner */
239           0,                                   /* the tuner i2c address */
240           0,                                   /* dbx is optional */
241	   0,
242           0,
243           0,                                   /* EEProm type */
244           0,                                   /* EEProm size */
245           { 0x01, 0x02, 0x01, 0x00, 1 },	/* audio MUX values */
246	   0x0f },				/* GPIO mask */
247
248        {  CARD_IO_BCTV2,                       /* the card id */
249          "I/O DATA GV-BCTV2/PCI",              /* the 'name' */
250           NULL,                                /* the tuner */
251           0,                                   /* the tuner i2c address */
252           0,                                   /* dbx is optional */
253           0,
254	   0,
255           0,                                   /* EEProm type */
256           0,                                   /* EEProm size */
257           { 0x00, 0x00, 0x00, 0x00, 1 },	/* Has special MUX handler */
258	   0x0f },				/* GPIO mask */
259
260        {  CARD_FLYVIDEO,			/* the card id */
261          "FlyVideo",				/* the 'name' */
262           NULL,				/* the tuner */
263           0,					/* the tuner i2c address */
264           0,					/* dbx is optional */
265           0,					/* msp34xx is optional */
266           0,					/* dpl3518a is optional */
267	   0xac,				/* EEProm type */
268	   (u_char)(256 / EEPROMBLOCKSIZE),	/* 256 bytes */
269           { 0x000, 0x800, 0x400, 0x8dff00, 1 },/* audio MUX values */
270	   0x8dff00 },				/* GPIO mask */
271
272	{  CARD_ZOLTRIX,			/* the card id */
273	  "Zoltrix",				/* the 'name' */
274           NULL,				/* the tuner */
275           0,					/* the tuner i2c address */
276           0,					/* dbx is optional */
277           0,					/* msp34xx is optional */
278           0,					/* dpl3518a is optional */
279	   0,					/* EEProm type */
280	   0,					/* EEProm size */
281	   { 0x04, 0x01, 0x00, 0x0a, 1 },	/* audio MUX values */
282	   0x0f },				/* GPIO mask */
283
284	{  CARD_KISS,				/* the card id */
285	  "KISS TV/FM PCI",			/* the 'name' */
286           NULL,				/* the tuner */
287           0,					/* the tuner i2c address */
288           0,					/* dbx is optional */
289           0,					/* msp34xx is optional */
290           0,					/* dpl3518a is optional */
291	   0,					/* EEProm type */
292	   0,					/* EEProm size */
293	   { 0x0c, 0x00, 0x0b, 0x0b, 1 },	/* audio MUX values */
294	   0x0f },				/* GPIO mask */
295
296	{  CARD_VIDEO_HIGHWAY_XTREME,		/* the card id */
297	  "Video Highway Xtreme",		/* the 'name' */
298           NULL,				/* the tuner */
299	   0,
300	   0,
301	   0,
302	   0,
303	   0,					/* EEProm type */
304	   0,					/* EEProm size */
305	   { 0x00, 0x02, 0x01, 0x04, 1 },	/* audio MUX values */
306	   0x0f },				/* GPIO mask */
307
308	{  CARD_ASKEY_DYNALINK_MAGIC_TVIEW,	/* the card id */
309	  "Askey/Dynalink Magic TView",		/* the 'name' */
310	   NULL,				/* the tuner */
311	   0,
312	   0,
313	   0,
314	   0,
315	   0,					/* EEProm type */
316	   0,					/* EEProm size */
317	   { 0x400, 0xE00, 0x400, 0xC00, 1 },	/* audio MUX values */
318	   0xE00 },				/* GPIO mask */
319
320	{  CARD_LEADTEK,			/* the card id */
321	  "Leadtek Winfast TV 2000",		/* the 'name' */
322	   NULL,				/* the tuner */
323	   0,
324	   0,
325	   0,
326	   0,
327	   0,					/* EEProm type */
328	   0,					/* EEProm size */
329	   /* Tuner, Extern, Intern, Mute, Enabled */
330	   { 0x621000, 0x621000, 0x621000, 0xE21000, 1 }, /* audio MUX values */
331	   0xfff000 },				/* GPIO mask */
332
333        {  CARD_TERRATVPLUS,                    /* the card id */
334          "TerraTVplus",                        /* the 'name' */
335           NULL,                                /* the tuner */
336	   0,
337	   0,
338	   0,
339	   0,
340	   0,					/* EEProm type */
341	   0,					/* EEProm size */
342           { 0x20000, 0x00000, 0x30000, 0x40000, 1 }, /* audio MUX values*/
343           0x70000 },                           /* GPIO mask */
344
345        {  CARD_IO_BCTV3,                       /* the card id */
346          "I/O DATA GV-BCTV3/PCI",              /* the 'name' */
347           NULL,                                /* the tuner */
348           0,                                   /* the tuner i2c address */
349           0,                                   /* dbx is optional */
350           0,
351	   0,
352           0,                                   /* EEProm type */
353           0,                                   /* EEProm size */
354	   /* Tuner, Extern, Intern, Mute, Enabled */
355	   { 0x10000, 0, 0x10000, 0, 1 },	/* audio MUX values */
356	   0x10f00 },				/* GPIO mask */
357
358};
359
360struct bt848_card_sig bt848_card_signature[1]= {
361  /* IMS TURBO TV : card 5 */
362    {  5,9, {00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 02, 00, 00, 00}}
363
364
365};
366
367
368/*
369 * Write to the configuration EEPROM on the card.
370 * This is dangerous and will mess up your card. Therefore it is not
371 * implemented.
372 */
373int
374writeEEProm( bktr_ptr_t bktr, int offset, int count, u_char *data )
375{
376        return( -1 );
377}
378
379/*
380 * Read the contents of the configuration EEPROM on the card.
381 * (This is not fitted to all makes of card. All Hauppauge cards have them
382 * and so do newer Bt878 based cards.
383 */
384int
385readEEProm( bktr_ptr_t bktr, int offset, int count, u_char *data )
386{
387	int	x;
388	int	addr;
389	int	max;
390	int	byte;
391
392	/* get the address of the EEProm */
393	addr = (int)(bktr->card.eepromAddr & 0xff);
394	if ( addr == 0 )
395		return( -1 );
396
397	max = (int)(bktr->card.eepromSize * EEPROMBLOCKSIZE);
398	if ( (offset + count) > max )
399		return( -1 );
400
401	/* set the start address */
402	if ( i2cWrite( bktr, addr, offset, -1 ) == -1 )
403		return( -1 );
404
405	/* the read cycle */
406	for ( x = 0; x < count; ++x ) {
407		if ( (byte = i2cRead( bktr, (addr | 1) )) == -1 )
408			return( -1 );
409		data[ x ] = byte;
410	}
411
412	return( 0 );
413}
414
415
416#define ABSENT		(-1)
417
418/*
419 * get a signature of the card
420 * read all 128 possible i2c read addresses from 0x01 thru 0xff
421 * build a bit array with a 1 bit for each i2c device that responds
422 *
423 * XXX FIXME: use offset & count args
424 */
425int
426signCard( bktr_ptr_t bktr, int offset, int count, u_char* sig )
427{
428	int	x;
429
430	for ( x = 0; x < 16; ++x )
431		sig[ x ] = 0;
432
433	for ( x = 0; x < count; ++x ) {
434		if ( i2cRead( bktr, (2 * x) + 1 ) != ABSENT ) {
435			sig[ x / 8 ] |= (1 << (x % 8) );
436		}
437	}
438
439	return( 0 );
440}
441
442
443/*
444 * check_for_i2c_devices.
445 * Some BT848 cards have no tuner and no additional i2c devices
446 * eg stereo decoder. These are used for video conferencing or capture from
447 * a video camera. (eg VideoLogic Captivator PCI, Intel SmartCapture card).
448 *
449 * Determine if there are any i2c devices present. There are none present if
450 *  a) reading from all 128 devices returns ABSENT (-1) for each one
451 *     (eg VideoLogic Captivator PCI with BT848)
452 *  b) reading from all 128 devices returns 0 for each one
453 *     (eg VideoLogic Captivator PCI rev. 2F with BT848A)
454 */
455static int check_for_i2c_devices( bktr_ptr_t bktr ){
456  int x, temp_read;
457  int i2c_all_0 = 1;
458  int i2c_all_absent = 1;
459  for ( x = 0; x < 128; ++x ) {
460    temp_read = i2cRead( bktr, (2 * x) + 1 );
461    if (temp_read != 0)      i2c_all_0 = 0;
462    if (temp_read != ABSENT) i2c_all_absent = 0;
463  }
464
465  if ((i2c_all_0) || (i2c_all_absent)) return 0;
466  else return 1;
467}
468
469
470/*
471 * Temic/Philips datasheets say tuners can be at i2c addresses 0xc0, 0xc2,
472 * 0xc4 or 0xc6, settable by links on the tuner.
473 * Determine the actual address used on the TV card by probing read addresses.
474 */
475static int locate_tuner_address( bktr_ptr_t bktr) {
476  if (i2cRead( bktr, 0xc1) != ABSENT) return 0xc0;
477  if (i2cRead( bktr, 0xc3) != ABSENT) return 0xc2;
478  if (i2cRead( bktr, 0xc5) != ABSENT) return 0xc4;
479  if (i2cRead( bktr, 0xc7) != ABSENT) return 0xc6;
480  return -1; /* no tuner found */
481}
482
483
484/*
485 * Search for a configuration EEPROM on the i2c bus by looking at i2c addresses
486 * where EEPROMs are usually found.
487 * On some cards, the EEPROM appears in several locations, but all in the
488 * range 0xa0 to 0xae.
489 */
490static int locate_eeprom_address( bktr_ptr_t bktr) {
491  if (i2cRead( bktr, 0xa0) != ABSENT) return 0xa0;
492  if (i2cRead( bktr, 0xac) != ABSENT) return 0xac;
493  if (i2cRead( bktr, 0xae) != ABSENT) return 0xae;
494  return -1; /* no eeprom found */
495}
496
497
498/*
499 * determine the card brand/model
500 * BKTR_OVERRIDE_CARD, BKTR_OVERRIDE_TUNER, BKTR_OVERRIDE_DBX and
501 * BKTR_OVERRIDE_MSP can be used to select a specific device,
502 * regardless of the autodetection and i2c device checks.
503 *
504 * The scheme used for probing cards faces these problems:
505 *  It is impossible to work out which type of tuner is actually fitted,
506 *  (the driver cannot tell if the Tuner is PAL or NTSC, Temic or Philips)
507 *  It is impossible to determine what audio-mux hardware is connected.
508 *  It is impossible to determine if there is extra hardware connected to the
509 *  GPIO pins  (eg radio chips or MSP34xx reset logic)
510 *
511 * However some makes of card (eg Hauppauge) come with a configuration eeprom
512 * which tells us the make of the card. Most eeproms also tell us the
513 * tuner type and other features of the the cards.
514 *
515 * The current probe code works as follows
516 * A) If the card uses a Bt878/879:
517 *   1) Read the sub-system vendor id from the configuration EEPROM.
518 *      Select the required tuner, audio mux arrangement and any other
519 *      onboard features. If this fails, move to step B.
520 * B) If it card uses a Bt848, 848A, 849A or an unknown Bt878/879:
521 *   1) Look for I2C devices. If there are none fitted, it is an Intel or
522 *      VideoLogic cards.
523 *   2) Look for a configuration EEPROM.
524 *   2a) If there is one at I2C address 0xa0 it may be
525 *       a Hauppauge or an Osprey. Check the EEPROM contents to determine which
526 *       one it is. For Hauppauge, select the tuner type and audio hardware.
527 *   2b) If there is an EEPROM at I2C address 0xa8 it will be an STB card.
528 *       We still have to guess on the tuner type.
529 *
530 * C) If we do not know the card type from (A) or (B), guess at the tuner
531 *    type based on the I2C address of the tuner.
532 *
533 * D) After determining the Tuner Type, we probe the i2c bus for other
534 *    devices at known locations, eg IR-Remote Control, MSP34xx and TDA
535 *    stereo chips.
536 */
537
538
539/*
540 * These are the sub-system vendor ID codes stored in the
541 * configuration EEPROM used on Bt878/879 cards. They should match the
542 * number assigned to the company by the PCI Special Interest Group
543 */
544#ifndef __NetBSD__
545#define PCI_VENDOR_HAUPPAUGE	0x0070
546#define PCI_VENDOR_AVERMEDIA	0x1461
547#define PCI_VENDOR_STB		0x10B4
548#define PCI_VENDOR_ASKEY	0x144F
549#endif
550/* Following not confirmed with http://members.hyperlink.net.au/~chart,
551   so not added to NetBSD's pcidevs */
552#define PCI_VENDOR_LEADTEK_ALT	0x6606
553#define PCI_VENDOR_LEADTEK_ALT_2	0x6607
554#define PCI_VENDOR_LEADTEK_ALT_3	0x107d
555#define PCI_VENDOR_FLYVIDEO	0x1851
556#define PCI_VENDOR_FLYVIDEO_2	0x1852
557#define PCI_VENDOR_PINNACLE_ALT	0xBD11
558#define PCI_VENDOR_IODATA	0x10fc
559
560#define MODEL_IODATA_GV_BCTV3_PCI	0x4020
561
562void
563probeCard( bktr_ptr_t bktr, int verbose, int unit )
564{
565	int		card, i,j, card_found;
566	int		status;
567	u_char 		probe_signature[128], *probe_temp;
568        int   		any_i2c_devices;
569	u_char 		eeprom[256];
570	int 		tuner_i2c_address = -1;
571	int 		eeprom_i2c_address = -1;
572
573	/* Select all GPIO bits as inputs */
574	OUTL(bktr, BKTR_GPIO_OUT_EN, 0);
575	if (bootverbose)
576	    printf("%s: GPIO is 0x%08x\n", bktr_name(bktr),
577		   INL(bktr, BKTR_GPIO_DATA));
578
579#ifdef HAUPPAUGE_MSP_RESET
580	/* Reset the MSP34xx audio chip. This resolves bootup card
581	 * detection problems with old Bt848 based Hauppauge cards with
582	 * MSP34xx stereo audio chips. This must be user enabled because
583	 * at this point the probe function does not know the card type. */
584        OUTL(bktr, BKTR_GPIO_OUT_EN, INL(bktr, BKTR_GPIO_OUT_EN) | (1<<5));
585        OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
586        DELAY(2500); /* wait 2.5ms */
587        OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) & ~(1<<5)); /* write '0' */
588        DELAY(2500); /* wait 2.5ms */
589        OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
590        DELAY(2500); /* wait 2.5ms */
591#endif
592
593	/* Check for the presence of i2c devices */
594        any_i2c_devices = check_for_i2c_devices( bktr );
595
596
597	/* Check for a user specified override on the card selection */
598#if defined( BKTR_OVERRIDE_CARD )
599	bktr->card = cards[ (card = BKTR_OVERRIDE_CARD) ];
600	goto checkEEPROM;
601#endif
602	if (bktr->bt848_card != -1 ) {
603	  bktr->card = cards[ (card = bktr->bt848_card) ];
604	  goto checkEEPROM;
605	}
606
607
608	/* No override, so try and determine the make of the card */
609
610        /* On BT878/879 cards, read the sub-system vendor id */
611	/* This identifies the manufacturer of the card and the model */
612	/* In theory this can be read from PCI registers but this does not */
613	/* appear to work on the FlyVideo 98. Hauppauge also warned that */
614	/* the PCI registers are sometimes not loaded correctly. */
615	/* Therefore, I will read the sub-system vendor ID from the EEPROM */
616	/* (just like the Bt878 does during power up initialisation) */
617
618        if ((bktr->id==BROOKTREE_878) || (bktr->id==BROOKTREE_879)) {
619	    /* Try and locate the EEPROM */
620	    eeprom_i2c_address = locate_eeprom_address( bktr );
621	    if (eeprom_i2c_address != -1) {
622
623                unsigned int subsystem_vendor_id; /* vendors PCI-SIG ID */
624                unsigned int subsystem_id;        /* board model number */
625		unsigned int byte_252, byte_253, byte_254, byte_255;
626
627		bktr->card = cards[ (card = CARD_UNKNOWN) ];
628		bktr->card.eepromAddr = eeprom_i2c_address;
629		bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
630
631	        readEEProm(bktr, 0, 256, (u_char *) &eeprom );
632                byte_252 = (unsigned int)eeprom[252];
633                byte_253 = (unsigned int)eeprom[253];
634                byte_254 = (unsigned int)eeprom[254];
635                byte_255 = (unsigned int)eeprom[255];
636
637                subsystem_id        = (byte_252 << 8) | byte_253;
638                subsystem_vendor_id = (byte_254 << 8) | byte_255;
639
640	        if ( bootverbose )
641	            printf("%s: subsystem 0x%04x 0x%04x\n", bktr_name(bktr),
642			   subsystem_vendor_id, subsystem_id);
643
644                if (subsystem_vendor_id == PCI_VENDOR_AVERMEDIA) {
645                    bktr->card = cards[ (card = CARD_AVER_MEDIA) ];
646		    bktr->card.eepromAddr = eeprom_i2c_address;
647		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
648                    goto checkTuner;
649                }
650
651                if (subsystem_vendor_id == PCI_VENDOR_HAUPPAUGE) {
652                    bktr->card = cards[ (card = CARD_HAUPPAUGE) ];
653		    bktr->card.eepromAddr = eeprom_i2c_address;
654		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
655                    goto checkTuner;
656                }
657
658                if ((subsystem_vendor_id == PCI_VENDOR_FLYVIDEO)
659                 || (subsystem_vendor_id == PCI_VENDOR_FLYVIDEO_2) ) {
660                    bktr->card = cards[ (card = CARD_FLYVIDEO) ];
661		    bktr->card.eepromAddr = eeprom_i2c_address;
662		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
663                    goto checkTuner;
664                }
665
666                if (subsystem_vendor_id == PCI_VENDOR_STB) {
667                    bktr->card = cards[ (card = CARD_STB) ];
668		    bktr->card.eepromAddr = eeprom_i2c_address;
669		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
670                    goto checkTuner;
671                }
672
673                if (subsystem_vendor_id == PCI_VENDOR_ASKEY) {
674                    bktr->card = cards[ (card = CARD_ASKEY_DYNALINK_MAGIC_TVIEW) ];
675		    bktr->card.eepromAddr = eeprom_i2c_address;
676		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
677                    goto checkTuner;
678                }
679
680                if ((subsystem_vendor_id == PCI_VENDOR_LEADTEK_ALT)
681		 || (subsystem_vendor_id == PCI_VENDOR_LEADTEK_ALT_2)
682		 || (subsystem_vendor_id == PCI_VENDOR_LEADTEK_ALT_3)) {
683                    bktr->card = cards[ (card = CARD_LEADTEK) ];
684		    bktr->card.eepromAddr = eeprom_i2c_address;
685		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
686                    goto checkTuner;
687                }
688
689		if (subsystem_vendor_id == PCI_VENDOR_PINNACLE_ALT) {
690                    bktr->card = cards[ (card = CARD_MIRO) ];
691		    bktr->card.eepromAddr = eeprom_i2c_address;
692		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
693                    goto checkTuner;
694                }
695
696		if (subsystem_vendor_id == 0x10fc &&
697		    subsystem_id == 0x4020) {
698		    bktr->card = cards[ (card = CARD_IO_BCTV3) ];
699		    bktr->card.eepromAddr = eeprom_i2c_address;
700		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
701		    goto checkTuner;
702		}
703
704                /* Vendor is unknown. We will use the standard probe code */
705		/* which may not give best results */
706                printf("%s: Warning - card vendor 0x%04x (model 0x%04x) unknown.\n",
707		       bktr_name(bktr), subsystem_vendor_id, subsystem_id);
708            }
709	    else
710	    {
711                printf("%s: Card has no configuration EEPROM. Cannot determine card make.\n",
712		       bktr_name(bktr));
713	    }
714	} /* end of bt878/bt879 card detection code */
715
716	/* If we get to this point, we must have a Bt848/848A/849A card */
717	/* or a Bt878/879 with an unknown subsystem vendor id */
718        /* Try and determine the make of card by clever i2c probing */
719
720   	/* Check for i2c devices. If none, move on */
721	if (!any_i2c_devices) {
722		bktr->card = cards[ (card = CARD_INTEL) ];
723		bktr->card.eepromAddr = 0;
724		bktr->card.eepromSize = 0;
725		goto checkTuner;
726	}
727
728        /* Look for Hauppauge, STB and Osprey cards by the presence */
729	/* of an EEPROM */
730        /* Note: Bt878 based cards also use EEPROMs so we can only do this */
731        /* test on BT848/848A and 849A based cards. */
732	if ((bktr->id==BROOKTREE_848)  ||
733	    (bktr->id==BROOKTREE_848A) ||
734	    (bktr->id==BROOKTREE_849A)) {
735
736            /* At i2c address 0xa0, look for Hauppauge and Osprey cards */
737            if ( (status = i2cRead( bktr, PFC8582_RADDR )) != ABSENT ) {
738
739		    /* Read the eeprom contents */
740		    bktr->card = cards[ (card = CARD_UNKNOWN) ];
741		    bktr->card.eepromAddr = PFC8582_WADDR;
742		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
743	            readEEProm(bktr, 0, 128, (u_char *) &eeprom );
744
745		    /* For Hauppauge, check the EEPROM begins with 0x84 */
746		    if (eeprom[0] == 0x84) {
747                            bktr->card = cards[ (card = CARD_HAUPPAUGE) ];
748			    bktr->card.eepromAddr = PFC8582_WADDR;
749			    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
750                            goto checkTuner;
751		    }
752
753		    /* For Osprey, check the EEPROM begins with "MMAC" */
754		    if (  (eeprom[0] == 'M') &&(eeprom[1] == 'M')
755			&&(eeprom[2] == 'A') &&(eeprom[3] == 'C')) {
756                            bktr->card = cards[ (card = CARD_OSPREY) ];
757			    bktr->card.eepromAddr = PFC8582_WADDR;
758			    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
759                            goto checkTuner;
760		    }
761		    printf("%s: Warning: Unknown card type. EEPROM data not recognised\n",
762			   bktr_name(bktr));
763		    printf("%s: %x %x %x %x\n", bktr_name(bktr),
764			   eeprom[0],eeprom[1],eeprom[2],eeprom[3]);
765            }
766
767            /* look for an STB card */
768            if ( (status = i2cRead( bktr, X24C01_RADDR )) != ABSENT ) {
769                    bktr->card = cards[ (card = CARD_STB) ];
770		    bktr->card.eepromAddr = X24C01_WADDR;
771		    bktr->card.eepromSize = (u_char)(128 / EEPROMBLOCKSIZE);
772                    goto checkTuner;
773            }
774
775	}
776
777	signCard( bktr, 1, 128, (u_char *)  &probe_signature );
778
779	if (bootverbose) {
780	  printf("%s: card signature: ", bktr_name(bktr));
781	  for (j = 0; j < Bt848_MAX_SIGN; j++) {
782	    printf(" %02x ", probe_signature[j]);
783	  }
784	  printf("\n\n");
785	}
786	for (i = 0;
787	     i < (sizeof bt848_card_signature)/ sizeof (struct bt848_card_sig);
788	     i++ ) {
789
790	  card_found = 1;
791	  probe_temp = (u_char *) &bt848_card_signature[i].signature;
792
793	  for (j = 0; j < Bt848_MAX_SIGN; j++) {
794	    if ((probe_temp[j] & 0xf) != (probe_signature[j] & 0xf)) {
795	      card_found = 0;
796	      break;
797	    }
798
799	  }
800	  if (card_found) {
801	    bktr->card = cards[ card = bt848_card_signature[i].card];
802	    eeprom_i2c_address = locate_eeprom_address( bktr );
803	    if (eeprom_i2c_address != -1) {
804		bktr->card.eepromAddr = eeprom_i2c_address;
805		bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
806	    } else {
807		bktr->card.eepromAddr = 0;
808		bktr->card.eepromSize = 0;
809	    }
810	    tuner_i2c_address = locate_tuner_address( bktr );
811	    select_tuner( bktr, bt848_card_signature[i].tuner );
812	    goto checkDBX;
813	  }
814	}
815
816	/* We do not know the card type. Default to Miro */
817	bktr->card = cards[ (card = CARD_MIRO) ];
818
819
820checkEEPROM:
821	/* look for a configuration eeprom */
822	eeprom_i2c_address = locate_eeprom_address( bktr );
823	if (eeprom_i2c_address != -1) {
824	    bktr->card.eepromAddr = eeprom_i2c_address;
825	    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
826	} else {
827	    bktr->card.eepromAddr = 0;
828	    bktr->card.eepromSize = 0;
829	}
830
831
832checkTuner:
833
834	/* look for a tuner */
835	tuner_i2c_address = locate_tuner_address( bktr );
836	if ( tuner_i2c_address == -1 ) {
837		select_tuner( bktr, NO_TUNER );
838		goto checkDBX;
839	}
840
841#if defined( BKTR_OVERRIDE_TUNER )
842	select_tuner( bktr, BKTR_OVERRIDE_TUNER );
843	goto checkDBX;
844#endif
845	if (bktr->bt848_tuner != -1 ) {
846	  select_tuner( bktr, bktr->bt848_tuner & 0xff );
847	  goto checkDBX;
848	}
849
850	/* Check for i2c devices */
851	if (!any_i2c_devices) {
852		select_tuner( bktr, NO_TUNER );
853		goto checkDBX;
854	}
855
856	/* differentiate type of tuner */
857
858	switch (card) {
859	case CARD_MIRO:
860	    switch (((INL(bktr, BKTR_GPIO_DATA) >> 10)-1)&7) {
861	    case 0: select_tuner( bktr, TEMIC_PAL ); break;
862	    case 1: select_tuner( bktr, PHILIPS_PAL ); break;
863	    case 2: select_tuner( bktr, PHILIPS_NTSC ); break;
864	    case 3: select_tuner( bktr, PHILIPS_SECAM ); break;
865	    case 4: select_tuner( bktr, NO_TUNER ); break;
866	    case 5: select_tuner( bktr, PHILIPS_PALI ); break;
867	    case 6: select_tuner( bktr, TEMIC_NTSC ); break;
868	    case 7: select_tuner( bktr, TEMIC_PALI ); break;
869	    }
870	    goto checkDBX;
871	    break;
872
873	case CARD_HAUPPAUGE:
874	    /* Hauppauge kindly supplied the following Tuner Table */
875	    /* FIXME: I think the tuners the driver selects for types */
876	    /* 0x08 and 0x15 may be incorrect but no one has complained. */
877	    /* Old Temic tuners had their own API, but newer Temic tuners */
878	    /* have the same API as Philips tuners */
879	    /*
880  ID  Tuner Model           Format			We select Format
881 0x00 NONE
882 0x01 EXTERNAL
883 0x02 OTHER
884 0x03 Philips FI1216        BG
885 0x04 Philips FI1216MF      BGLL'			PHILIPS_SECAM
886 0x05 Philips FI1236        MN 				PHILIPS_NTSC
887 0x06 Philips FI1246        I 				PHILIPS_PALI
888 0x07 Philips FI1256        DK
889 0x08 Philips FI1216 MK2    BG 				PHILIPS_PALI
890 0x09 Philips FI1216MF MK2  BGLL' 			PHILIPS_SECAM
891 0x0a Philips FI1236 MK2    MN 				PHILIPS_NTSC
892 0x0b Philips FI1246 MK2    I 				PHILIPS_PALI
893 0x0c Philips FI1256 MK2    DK
894 0x0d Temic 4032FY5         NTSC			TEMIC_NTSC
895 0x0e Temic 4002FH5         BG				TEMIC_PAL
896 0x0f Temic 4062FY5         I 				TEMIC_PALI
897 0x10 Philips FR1216 MK2    BG
898 0x11 Philips FR1216MF MK2  BGLL' 			PHILIPS_FR1236_SECAM
899 0x12 Philips FR1236 MK2    MN 				PHILIPS_FR1236_NTSC
900 0x13 Philips FR1246 MK2    I
901 0x14 Philips FR1256 MK2    DK
902 0x15 Philips FM1216        BG 				PHILIPS_FR1216_PAL
903 0x16 Philips FM1216MF      BGLL' 			PHILIPS_FR1236_SECAM
904 0x17 Philips FM1236        MN 				PHILIPS_FR1236_NTSC
905 0x18 Philips FM1246        I
906 0x19 Philips FM1256        DK
907 0x1a Temic 4036FY5         MN (FI1236 MK2 clone)	PHILIPS_NTSC
908 0x1b Samsung TCPN9082D     MN
909 0x1c Samsung TCPM9092P     Pal BG/I/DK
910 0x1d Temic 4006FH5         BG				PHILIPS_PALI
911 0x1e Samsung TCPN9085D     MN/Radio
912 0x1f Samsung TCPB9085P     Pal BG/I/DK / Radio
913 0x20 Samsung TCPL9091P     Pal BG & Secam L/L'
914 0x21 Temic 4039FY5         NTSC Radio
915 0x22 Philips FQ1216ME      Pal BGIDK & Secam L/L'
916 0x23 Temic 4066FY5         Pal I (FI1246 MK2 clone)	PHILIPS_PALI
917 0x24 Philips TD1536        MN/ATSCDigital
918 0x25 Philips TD1536D       MN/ATSCDigital DUAL INPUT
919 0x26 Philips FMR1236       M/N FM(no demod)
920 0x27 Philips FI1256MP      B/G, D/K
921 0x28 Samsung TCPQ9091P     BG/I/DK, L/L'
922 0x29 Temic 4006FN5         BG/I/DK
923 0x2a Temic 4009FR5         BG FM			PHILIPS_FR1216_PAL
924 0x2b Temic 4046FM5         B/G, I, D/K, L/L'
925 0x2c Temic 4009FN5         B/G, I, D/K, FM (no demod)
926 0x2d Philips TD1536D_FH_44 MN/ATSCDigital DUAL INPUT
927	    */
928
929
930	    /* Determine the model number from the eeprom */
931	    if (bktr->card.eepromAddr != 0) {
932	        /* eeprom data block structure */
933	        unsigned char *block_1, *block_2, *block_3, *block_4;
934	        int block_1_data_size,  block_2_data_size, block_3_data_size;
935	        int block_1_total_size, block_2_total_size, block_3_total_size;
936		int block_4_header_size;
937
938		unsigned int model,revision;
939		unsigned char tuner_code;
940		unsigned char no_audio_mux;
941
942		readEEProm(bktr, 0, 128, (u_char *) &eeprom );
943
944	        /* LOCATE THE EEPROM DATA BLOCKS */
945	        block_1 = &eeprom[0];
946	        block_1_data_size = (block_1[2] << 8 | block_1[1]);
947	        block_1_total_size = block_1_data_size + 3; /* Header bytes */
948
949	        block_2 = &eeprom[block_1_total_size];
950	        block_2_data_size = (block_2[2] << 8 | block_2[1]);
951	        block_2_total_size = block_2_data_size + 3; /* Header bytes */
952
953	        block_3 = &eeprom[block_1_total_size + block_2_total_size];
954	        block_3_data_size = (block_3[0] &0x07);
955	        block_3_total_size = block_3_data_size + 1; /* Header size */
956
957	        block_4 = &eeprom[block_1_total_size +block_2_total_size +block_3_total_size];
958	        block_4_header_size = 1;
959
960		model    = (block_1[12] << 8  | block_1[11]);
961		revision = (block_1[15] << 16 | block_1[14] << 8 | block_1[13]);
962
963		tuner_code = block_1[9];
964
965		no_audio_mux = ((block_3[3] >> 7) &0x01);
966
967		if (no_audio_mux) bktr->audio_mux_present = 0;
968
969		if (verbose)
970		    printf("%s: Hauppauge Model %d %c%c%c%c\n",
971			   bktr_name(bktr),
972			   model,
973			   ((revision >> 18) & 0x3f) + 32,
974			   ((revision >> 12) & 0x3f) + 32,
975			   ((revision >>  6) & 0x3f) + 32,
976			   ((revision >>  0) & 0x3f) + 32 );
977
978	        /* Determine the tuner type from the eeprom */
979
980		switch (tuner_code) {
981
982		  case 0x5:
983                  case 0x0a:
984                  case 0x1a:
985		    select_tuner( bktr, PHILIPS_NTSC );
986		    goto checkDBX;
987
988		  case 0x4:
989                  case 0x9:
990		    select_tuner( bktr, PHILIPS_SECAM );
991		    goto checkDBX;
992
993                  case 0x11:
994	          case 0x16:
995		    select_tuner( bktr, PHILIPS_FR1236_SECAM );
996		    goto checkDBX;
997
998                  case 0x12:
999	          case 0x17:
1000		  case 0x21:
1001		    select_tuner( bktr, PHILIPS_FR1236_NTSC );
1002		    goto checkDBX;
1003
1004		  case 0x6:
1005	          case 0x8:
1006	          case 0xb:
1007	          case 0x1d:
1008	          case 0x23:
1009		    select_tuner( bktr, PHILIPS_PALI );
1010		    goto checkDBX;
1011
1012	          case 0xd:
1013		    select_tuner( bktr, TEMIC_NTSC );
1014		    goto checkDBX;
1015
1016                  case 0xe:
1017		    select_tuner( bktr, TEMIC_PAL );
1018		    goto checkDBX;
1019
1020	          case 0xf:
1021		    select_tuner( bktr, TEMIC_PALI );
1022		    goto checkDBX;
1023
1024                  case 0x15:
1025		    select_tuner( bktr, PHILIPS_FR1216_PAL );
1026		    goto checkDBX;
1027
1028                  case 0x2a:
1029		    bktr->msp_use_mono_source = 1;
1030		    select_tuner( bktr, PHILIPS_FR1216_PAL );
1031		    goto checkDBX;
1032
1033	          default :
1034		    printf("%s: Warning - Unknown Hauppauge Tuner 0x%x\n",
1035			   bktr_name(bktr), tuner_code);
1036		}
1037	    }
1038	    break;
1039
1040
1041	case CARD_AVER_MEDIA:
1042	    /* AVerMedia kindly supplied some details of their EEPROM contents
1043	     * which allow us to auto select the Tuner Type.
1044	     * Only the newer AVerMedia cards actually have an EEPROM.
1045	     */
1046	    if (bktr->card.eepromAddr != 0) {
1047
1048		u_char tuner_make;   /* Eg Philips, Temic */
1049		u_char tuner_tv_fm;  /* TV or TV with FM Radio */
1050		u_char tuner_format; /* Eg NTSC, PAL, SECAM */
1051		int    tuner;
1052
1053		int tuner_0_table[] = {
1054			PHILIPS_NTSC,  PHILIPS_PAL,
1055			PHILIPS_PAL,   PHILIPS_PAL,
1056			PHILIPS_PAL,   PHILIPS_PAL,
1057			PHILIPS_SECAM, PHILIPS_SECAM,
1058			PHILIPS_SECAM, PHILIPS_PAL};
1059
1060		int tuner_0_fm_table[] = {
1061			PHILIPS_FR1236_NTSC,  PHILIPS_FR1216_PAL,
1062			PHILIPS_FR1216_PAL,   PHILIPS_FR1216_PAL,
1063			PHILIPS_FR1216_PAL,   PHILIPS_FR1216_PAL,
1064			PHILIPS_FR1236_SECAM, PHILIPS_FR1236_SECAM,
1065			PHILIPS_FR1236_SECAM, PHILIPS_FR1216_PAL};
1066
1067		int tuner_1_table[] = {
1068			TEMIC_NTSC,  TEMIC_PAL,   TEMIC_PAL,
1069			TEMIC_PAL,   TEMIC_PAL,   TEMIC_PAL,
1070			TEMIC_SECAM, TEMIC_SECAM, TEMIC_SECAM,
1071			TEMIC_PAL};
1072
1073
1074		/* Extract information from the EEPROM data */
1075	    	readEEProm(bktr, 0, 128, (u_char *) &eeprom );
1076
1077		tuner_make   = (eeprom[0x41] & 0x7);
1078		tuner_tv_fm  = (eeprom[0x41] & 0x18) >> 3;
1079		tuner_format = (eeprom[0x42] & 0xf0) >> 4;
1080
1081		/* Treat tuner make 0 (Philips) and make 2 (LG) the same */
1082		if ( ((tuner_make == 0) || (tuner_make == 2))
1083		    && (tuner_format <= 9) && (tuner_tv_fm == 0) ) {
1084			tuner = tuner_0_table[tuner_format];
1085			select_tuner( bktr, tuner );
1086			goto checkDBX;
1087		}
1088
1089		if ( ((tuner_make == 0) || (tuner_make == 2))
1090		    && (tuner_format <= 9) && (tuner_tv_fm == 1) ) {
1091			tuner = tuner_0_fm_table[tuner_format];
1092			select_tuner( bktr, tuner );
1093			goto checkDBX;
1094		}
1095
1096		if ( (tuner_make == 1) && (tuner_format <= 9) ) {
1097			tuner = tuner_1_table[tuner_format];
1098			select_tuner( bktr, tuner );
1099			goto checkDBX;
1100		}
1101
1102	    	printf("%s: Warning - Unknown AVerMedia Tuner Make %d Format %d\n",
1103			bktr_name(bktr), tuner_make, tuner_format);
1104	    }
1105	    break;
1106
1107	case CARD_LEADTEK:
1108#if BKTR_SYSTEM_DEFAULT == BROOKTREE_PAL
1109	    select_tuner( bktr, PHILIPS_FR1216_PAL );
1110#else
1111	    select_tuner( bktr, PHILIPS_FR1236_NTSC );
1112#endif
1113            goto checkDBX;
1114	    break;
1115
1116	case CARD_IO_BCTV3:
1117	    select_tuner( bktr, ALPS_TSCH5 ); /* ALPS_TSCH6, in fact. */
1118	    goto checkDBX;
1119	    break;
1120
1121	} /* end switch(card) */
1122
1123
1124        /* At this point, a goto checkDBX has not occured */
1125        /* We have not been able to select a Tuner */
1126        /* Some cards make use of the tuner address to */
1127        /* identify the make/model of tuner */
1128
1129        /* At address 0xc0/0xc1 we often find a TEMIC NTSC */
1130        if ( i2cRead( bktr, 0xc1 ) != ABSENT ) {
1131	    select_tuner( bktr, TEMIC_NTSC );
1132            goto checkDBX;
1133        }
1134
1135        /* At address 0xc6/0xc7 we often find a PHILIPS NTSC Tuner */
1136        if ( i2cRead( bktr, 0xc7 ) != ABSENT ) {
1137	    select_tuner( bktr, PHILIPS_NTSC );
1138            goto checkDBX;
1139        }
1140
1141        /* Address 0xc2/0xc3 is default (or common address) for several */
1142	/* tuners and we cannot tell which is which. */
1143	/* And for all other tuner i2c addresses, select the default */
1144	select_tuner( bktr, DEFAULT_TUNER );
1145
1146
1147checkDBX:
1148#if defined( BKTR_OVERRIDE_DBX )
1149	bktr->card.dbx = BKTR_OVERRIDE_DBX;
1150	goto checkMSP;
1151#endif
1152   /* Check for i2c devices */
1153	if (!any_i2c_devices) {
1154		goto checkMSP;
1155	}
1156
1157	/* probe for BTSC (dbx) chip */
1158	if ( i2cRead( bktr, TDA9850_RADDR ) != ABSENT )
1159		bktr->card.dbx = 1;
1160
1161checkMSP:
1162	/* If this is a Hauppauge Bt878 card, we need to enable the
1163	 * MSP 34xx audio chip.
1164	 * If this is a Hauppauge Bt848 card, reset the MSP device.
1165	 * The MSP reset line is wired to GPIO pin 5. On Bt878 cards a pulldown
1166	 * resistor holds the device in reset until we set GPIO pin 5.
1167         */
1168
1169	/* Optionally skip the MSP reset. This is handy if you initialise the
1170	 * MSP audio in another operating system (eg Windows) first and then
1171	 * do a soft reboot.
1172	 */
1173
1174#ifndef BKTR_NO_MSP_RESET
1175	if (card == CARD_HAUPPAUGE) {
1176            OUTL(bktr, BKTR_GPIO_OUT_EN, INL(bktr, BKTR_GPIO_OUT_EN) | (1<<5));
1177            OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
1178            DELAY(2500); /* wait 2.5ms */
1179            OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) & ~(1<<5)); /* write '0' */
1180            DELAY(2500); /* wait 2.5ms */
1181            OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
1182            DELAY(2500); /* wait 2.5ms */
1183        }
1184#endif
1185
1186#if defined( BKTR_OVERRIDE_MSP )
1187	bktr->card.msp3400c = BKTR_OVERRIDE_MSP;
1188	goto checkMSPEnd;
1189#endif
1190
1191	/* Check for i2c devices */
1192	if (!any_i2c_devices) {
1193		goto checkMSPEnd;
1194	}
1195
1196	if ( i2cRead( bktr, MSP3400C_RADDR ) != ABSENT ) {
1197		bktr->card.msp3400c = 1;
1198	}
1199
1200checkMSPEnd:
1201
1202	if (bktr->card.msp3400c) {
1203		bktr->msp_addr = MSP3400C_WADDR;
1204		msp_read_id( bktr );
1205		printf("%s: Detected a MSP%s at 0x%x\n", bktr_name(bktr),
1206		       bktr->msp_version_string,
1207		       bktr->msp_addr);
1208
1209	}
1210
1211/* Check for Dolby Surround Sound DPL3518A sound chip */
1212	if ( i2cRead( bktr, DPL3518A_RADDR ) != ABSENT ) {
1213		bktr->card.dpl3518a = 1;
1214	}
1215
1216	if (bktr->card.dpl3518a) {
1217		bktr->dpl_addr = DPL3518A_WADDR;
1218		dpl_read_id( bktr );
1219		printf("%s: Detected a DPL%s at 0x%x\n", bktr_name(bktr),
1220		       bktr->dpl_version_string,
1221		       bktr->dpl_addr);
1222	}
1223
1224/* Start of Check Remote */
1225        /* Check for the Hauppauge IR Remote Control */
1226        /* If there is an external unit, the internal will be ignored */
1227
1228        bktr->remote_control = 0; /* initial value */
1229
1230        if (any_i2c_devices) {
1231            if (i2cRead( bktr, HAUP_REMOTE_EXT_RADDR ) != ABSENT )
1232                {
1233                bktr->remote_control      = 1;
1234                bktr->remote_control_addr = HAUP_REMOTE_EXT_RADDR;
1235                }
1236            else if (i2cRead( bktr, HAUP_REMOTE_INT_RADDR ) != ABSENT )
1237                {
1238                bktr->remote_control      = 1;
1239                bktr->remote_control_addr = HAUP_REMOTE_INT_RADDR;
1240                }
1241
1242        }
1243        /* If a remote control is found, poll it 5 times to turn off the LED */
1244        if (bktr->remote_control) {
1245                int i;
1246                for (i=0; i<5; i++)
1247                        i2cRead( bktr, bktr->remote_control_addr );
1248        }
1249/* End of Check Remote */
1250
1251#if defined( BKTR_USE_PLL )
1252	bktr->xtal_pll_mode = BT848_USE_PLL;
1253	goto checkPLLEnd;
1254#endif
1255	/* Default is to use XTALS and not PLL mode */
1256	bktr->xtal_pll_mode = BT848_USE_XTALS;
1257
1258	/* Enable PLL mode for OSPREY users */
1259	if (card == CARD_OSPREY)
1260		bktr->xtal_pll_mode = BT848_USE_PLL;
1261
1262	/* Enable PLL mode for Video Highway Xtreme users */
1263	if (card == CARD_VIDEO_HIGHWAY_XTREME)
1264		bktr->xtal_pll_mode = BT848_USE_PLL;
1265
1266
1267	/* Most (perhaps all) Bt878 cards need to be switched to PLL mode */
1268	/* as they only fit the NTSC crystal to their cards */
1269	/* Default to enabling PLL mode for all Bt878/879 cards */
1270
1271	if ((bktr->id==BROOKTREE_878 || bktr->id==BROOKTREE_879) )
1272		bktr->xtal_pll_mode = BT848_USE_PLL;
1273
1274
1275#if defined( BKTR_USE_PLL )
1276checkPLLEnd:
1277#endif
1278
1279
1280	bktr->card.tuner_pllAddr = tuner_i2c_address;
1281
1282	if ( verbose ) {
1283		printf( "%s: %s", bktr_name(bktr), bktr->card.name );
1284		if ( bktr->card.tuner )
1285			printf( ", %s tuner", bktr->card.tuner->name );
1286		if ( bktr->card.dbx )
1287			printf( ", dbx stereo" );
1288		if ( bktr->card.msp3400c )
1289			printf( ", msp3400c stereo" );
1290		if ( bktr->card.dpl3518a )
1291			printf( ", dpl3518a dolby" );
1292                if ( bktr->remote_control )
1293                        printf( ", remote control" );
1294		printf( ".\n" );
1295	}
1296}
1297
1298#undef ABSENT
1299