bktr_card.c revision 138936
1/*-
2 * 1. Redistributions of source code must retain the
3 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 *    must display the following acknowledgement:
16 *      This product includes software developed by Amancio Hasty and
17 *      Roger Hardiman
18 * 4. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#include <sys/cdefs.h>
35__FBSDID("$FreeBSD: head/sys/dev/bktr/bktr_card.c 138936 2004-12-16 23:37:41Z julian $");
36
37/*
38 * This is part of the Driver for Video Capture Cards (Frame grabbers)
39 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
40 * chipset.
41 * Copyright Roger Hardiman and Amancio Hasty.
42 *
43 * bktr_card : This deals with identifying TV cards.
44 *               trying to find the card make and model of card.
45 *               trying to find the type of tuner fitted.
46 *               reading the configuration EEPROM.
47 *               locating i2c devices.
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#include <pci/pcivar.h>
61#else
62#include <dev/pci/pcivar.h>
63#endif
64
65#if (__FreeBSD_version >=300000)
66#include <machine/bus_memio.h>	/* for bus space */
67#include <machine/bus.h>
68#include <sys/bus.h>
69#endif
70#endif
71
72#ifdef __NetBSD__
73#include <dev/ic/bt8xx.h>	/* NetBSD location for .h files */
74#include <dev/pci/bktr/bktr_reg.h>
75#include <dev/pci/bktr/bktr_core.h>
76#include <dev/pci/bktr/bktr_tuner.h>
77#include <dev/pci/bktr/bktr_card.h>
78#include <dev/pci/bktr/bktr_audio.h>
79#else
80#include <dev/bktr/ioctl_meteor.h>
81#include <dev/bktr/ioctl_bt848.h>	/* extensions to ioctl_meteor.h */
82#include <dev/bktr/bktr_reg.h>
83#include <dev/bktr/bktr_core.h>
84#include <dev/bktr/bktr_tuner.h>
85#include <dev/bktr/bktr_card.h>
86#include <dev/bktr/bktr_audio.h>
87#endif
88
89/* Include the PCI Vendor definitions */
90#ifdef __NetBSD__
91#include <dev/pci/pcidevs.h>
92#include <dev/pci/pcireg.h>
93#endif
94
95/* Various defines */
96#define HAUP_REMOTE_INT_WADDR   0x30
97#define HAUP_REMOTE_INT_RADDR   0x31
98
99#define HAUP_REMOTE_EXT_WADDR   0x34
100#define HAUP_REMOTE_EXT_RADDR   0x35
101
102/* address of BTSC/SAP decoder chip */
103#define TDA9850_WADDR           0xb6
104#define TDA9850_RADDR           0xb7
105
106/* address of MSP3400C chip */
107#define MSP3400C_WADDR          0x80
108#define MSP3400C_RADDR          0x81
109
110/* address of DPL3518A chip */
111#define DPL3518A_WADDR          0x84
112#define DPL3518A_RADDR          0x85
113
114/* EEProm (128 * 8) on an STB card */
115#define X24C01_WADDR            0xae
116#define X24C01_RADDR            0xaf
117
118
119/* EEProm (256 * 8) on a Hauppauge card */
120/* and on most BT878s cards to store the sub-system vendor id */
121#define PFC8582_WADDR           0xa0
122#define PFC8582_RADDR		0xa1
123
124#if BKTR_SYSTEM_DEFAULT == BROOKTREE_PAL
125#define DEFAULT_TUNER   PHILIPS_PALI
126#else
127#define DEFAULT_TUNER   PHILIPS_NTSC
128#endif
129
130
131
132
133/*
134 * the data for each type of card
135 *
136 * Note:
137 *   these entried MUST be kept in the order defined by the CARD_XXX defines!
138 */
139static const struct CARDTYPE cards[] = {
140
141	{  CARD_UNKNOWN,			/* the card id */
142	  "Unknown",				/* the 'name' */
143	   NULL,				/* the tuner */
144	   0,					/* the tuner i2c address */
145	   0,					/* dbx unknown */
146	   0,
147	   0,
148	   0,					/* EEProm unknown */
149	   0,					/* EEProm unknown */
150	   { 0, 0, 0, 0, 0 },
151	   0 },					/* GPIO mask */
152
153	{  CARD_MIRO,				/* the card id */
154	  "Pinnacle/Miro TV",			/* the 'name' */
155	   NULL,				/* the tuner */
156	   0,					/* the tuner i2c address */
157	   0,					/* dbx unknown */
158	   0,
159	   0,
160	   0,					/* EEProm unknown */
161	   0,					/* size unknown */
162	   { 0x02, 0x01, 0x00, 0x0a, 1 },	/* audio MUX values */
163	   0x0f },				/* GPIO mask */
164
165	{  CARD_HAUPPAUGE,			/* the card id */
166	  "Hauppauge WinCast/TV",		/* the 'name' */
167	   NULL,				/* the tuner */
168	   0,					/* the tuner i2c address */
169	   0,					/* dbx is optional */
170	   0,
171	   0,
172	   PFC8582_WADDR,			/* EEProm type */
173	   (u_char)(256 / EEPROMBLOCKSIZE),	/* 256 bytes */
174	   { 0x00, 0x02, 0x01, 0x04, 1 },	/* audio MUX values */
175	   0x0f },				/* GPIO mask */
176
177	{  CARD_STB,				/* the card id */
178	  "STB TV/PCI",				/* the 'name' */
179	   NULL,				/* the tuner */
180	   0,					/* the tuner i2c address */
181	   0,					/* dbx is optional */
182	   0,
183	   0,
184	   X24C01_WADDR,			/* EEProm type */
185	   (u_char)(128 / EEPROMBLOCKSIZE),	/* 128 bytes */
186	   { 0x00, 0x01, 0x02, 0x02, 1 }, 	/* audio MUX values */
187	   0x0f },				/* GPIO mask */
188
189	{  CARD_INTEL,				/* the card id */
190	  "Intel Smart Video III/VideoLogic Captivator PCI", /* the 'name' */
191	   NULL,				/* the tuner */
192	   0,					/* the tuner i2c address */
193	   0,
194	   0,
195	   0,
196	   0,
197	   0,
198	   { 0, 0, 0, 0, 0 }, 			/* audio MUX values */
199	   0x00 },				/* GPIO mask */
200
201	{  CARD_IMS_TURBO,			/* the card id */
202	  "IMS TV Turbo",			/* the 'name' */
203	   NULL,				/* the tuner */
204	   0,					/* the tuner i2c address */
205	   0,					/* dbx is optional */
206	   0,
207	   0,
208	   PFC8582_WADDR,			/* EEProm type */
209	   (u_char)(256 / EEPROMBLOCKSIZE),	/* 256 bytes */
210	   { 0x01, 0x02, 0x01, 0x00, 1 },	/* audio MUX values */
211	   0x0f },				/* GPIO mask */
212
213        {  CARD_AVER_MEDIA,			/* the card id */
214          "AVer Media TV/FM",                   /* the 'name' */
215           NULL,                                /* the tuner */
216	   0,					/* the tuner i2c address */
217           0,                                   /* dbx is optional */
218           0,
219	   0,
220           0,                                   /* EEProm type */
221           0,                                   /* EEProm size */
222           { 0x0c, 0x08, 0x04, 0x00, 1 },	/* audio MUX values */
223	   0x1f },				/* GPIO mask */
224
225        {  CARD_OSPREY,				/* the card id */
226          "MMAC Osprey",                   	/* the 'name' */
227           NULL,                                /* the tuner */
228	   0,					/* the tuner i2c address */
229           0,                                   /* dbx is optional */
230	   0,
231           0,
232	   PFC8582_WADDR,			/* EEProm type */
233	   (u_char)(256 / EEPROMBLOCKSIZE),	/* 256 bytes */
234           { 0x00, 0x00, 0x00, 0x00, 0 },	/* audio MUX values */
235	   0 },					/* GPIO mask */
236
237        {  CARD_NEC_PK,                         /* the card id */
238          "NEC PK-UG-X017",                     /* the 'name' */
239           NULL,                                /* the tuner */
240           0,                                   /* the tuner i2c address */
241           0,                                   /* dbx is optional */
242	   0,
243           0,
244           0,                                   /* EEProm type */
245           0,                                   /* EEProm size */
246           { 0x01, 0x02, 0x01, 0x00, 1 },	/* audio MUX values */
247	   0x0f },				/* GPIO mask */
248
249        {  CARD_IO_BCTV2,                       /* the card id */
250          "I/O DATA GV-BCTV2/PCI",              /* the 'name' */
251           NULL,                                /* the tuner */
252           0,                                   /* the tuner i2c address */
253           0,                                   /* dbx is optional */
254           0,
255	   0,
256           0,                                   /* EEProm type */
257           0,                                   /* EEProm size */
258           { 0x00, 0x00, 0x00, 0x00, 1 },	/* Has special MUX handler */
259	   0x0f },				/* GPIO mask */
260
261        {  CARD_FLYVIDEO,			/* the card id */
262          "FlyVideo",				/* the 'name' */
263           NULL,				/* the tuner */
264           0,					/* the tuner i2c address */
265           0,					/* dbx is optional */
266           0,					/* msp34xx is optional */
267           0,					/* dpl3518a is optional */
268	   0xac,				/* EEProm type */
269	   (u_char)(256 / EEPROMBLOCKSIZE),	/* 256 bytes */
270           { 0x000, 0x800, 0x400, 0x8dff00, 1 },/* audio MUX values */
271	   0x8dff00 },				/* GPIO mask */
272
273	{  CARD_ZOLTRIX,			/* the card id */
274	  "Zoltrix",				/* the 'name' */
275           NULL,				/* the tuner */
276           0,					/* the tuner i2c address */
277           0,					/* dbx is optional */
278           0,					/* msp34xx is optional */
279           0,					/* dpl3518a is optional */
280	   0,					/* EEProm type */
281	   0,					/* EEProm size */
282	   { 0x04, 0x01, 0x00, 0x0a, 1 },	/* audio MUX values */
283	   0x0f },				/* GPIO mask */
284
285	{  CARD_KISS,				/* the card id */
286	  "KISS TV/FM PCI",			/* the 'name' */
287           NULL,				/* the tuner */
288           0,					/* the tuner i2c address */
289           0,					/* dbx is optional */
290           0,					/* msp34xx is optional */
291           0,					/* dpl3518a is optional */
292	   0,					/* EEProm type */
293	   0,					/* EEProm size */
294	   { 0x0c, 0x00, 0x0b, 0x0b, 1 },	/* audio MUX values */
295	   0x0f },				/* GPIO mask */
296
297	{  CARD_VIDEO_HIGHWAY_XTREME,		/* the card id */
298	  "Video Highway Xtreme",		/* the 'name' */
299           NULL,				/* the tuner */
300	   0,
301	   0,
302	   0,
303	   0,
304	   0,					/* EEProm type */
305	   0,					/* EEProm size */
306	   { 0x00, 0x02, 0x01, 0x04, 1 },	/* audio MUX values */
307	   0x0f },				/* GPIO mask */
308
309	{  CARD_ASKEY_DYNALINK_MAGIC_TVIEW,	/* the card id */
310	  "Askey/Dynalink Magic TView",		/* the 'name' */
311	   NULL,				/* the tuner */
312	   0,
313	   0,
314	   0,
315	   0,
316	   0,					/* EEProm type */
317	   0,					/* EEProm size */
318	   { 0x400, 0xE00, 0x400, 0xC00, 1 },	/* audio MUX values */
319	   0xE00 },				/* GPIO mask */
320
321	{  CARD_LEADTEK,			/* the card id */
322	  "Leadtek Winfast TV 2000",		/* the 'name' */
323	   NULL,				/* the tuner */
324	   0,
325	   0,
326	   0,
327	   0,
328	   0,					/* EEProm type */
329	   0,					/* EEProm size */
330	   /* Tuner, Extern, Intern, Mute, Enabled */
331	   { 0x621000, 0x621000, 0x621000, 0xE21000, 1 }, /* audio MUX values */
332	   0xfff000 },				/* GPIO mask */
333
334        {  CARD_TERRATVPLUS,                    /* the card id */
335          "TerraTVplus",                        /* the 'name' */
336           NULL,                                /* the tuner */
337	   0,
338	   0,
339	   0,
340	   0,
341	   0,					/* EEProm type */
342	   0,					/* EEProm size */
343           { 0x20000, 0x00000, 0x30000, 0x40000, 1 }, /* audio MUX values*/
344           0x70000 },                           /* GPIO mask */
345
346        {  CARD_IO_BCTV3,                       /* the card id */
347          "I/O DATA GV-BCTV3/PCI",              /* the 'name' */
348           NULL,                                /* the tuner */
349           0,                                   /* the tuner i2c address */
350           0,                                   /* dbx is optional */
351           0,
352	   0,
353           0,                                   /* EEProm type */
354           0,                                   /* EEProm size */
355	   /* Tuner, Extern, Intern, Mute, Enabled */
356	   { 0x10000, 0, 0x10000, 0, 1 },	/* audio MUX values */
357	   0x10f00 },				/* GPIO mask */
358
359	{  CARD_AOPEN_VA1000,			/* the card id */
360	  "AOpen VA1000",			/* the 'name' */
361	   NULL,				/* the tuner */
362	   0,					/* the tuner i2c address */
363	   0,					/* dbx is optional */
364	   0,
365	   0,
366	   0,					/* EEProm unknown */
367	   0,					/* size unknown */
368	   { 0x02, 0x00, 0x00, 0x00, 1 },	/* audio MUX values */
369	   0x18e0 },				/* GPIO mask */
370
371	{  CARD_PINNACLE_PCTV_RAVE,		/* the card id */
372	  "Pinnacle PCTV Rave",			/* the 'name' */
373	   NULL,				/* the tuner */
374	   0,					/* the tuner i2c address */
375	   0,					/* dbx unknown */
376	   0,
377	   0,
378	   0,					/* EEProm unknown */
379	   0,					/* size unknown */
380	   { 0x02, 0x01, 0x00, 0x0a, 1 },	/* audio MUX values */
381	   0x03000F },				/* GPIO mask */
382
383};
384
385struct bt848_card_sig bt848_card_signature[1]= {
386  /* IMS TURBO TV : card 5 */
387    {  5,9, {00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 02, 00, 00, 00}}
388
389
390};
391
392
393/*
394 * Write to the configuration EEPROM on the card.
395 * This is dangerous and will mess up your card. Therefore it is not
396 * implemented.
397 */
398int
399writeEEProm( bktr_ptr_t bktr, int offset, int count, u_char *data )
400{
401        return( -1 );
402}
403
404/*
405 * Read the contents of the configuration EEPROM on the card.
406 * (This is not fitted to all makes of card. All Hauppauge cards have them
407 * and so do newer Bt878 based cards.
408 */
409int
410readEEProm( bktr_ptr_t bktr, int offset, int count, u_char *data )
411{
412	int	x;
413	int	addr;
414	int	max;
415	int	byte;
416
417	/* get the address of the EEProm */
418	addr = (int)(bktr->card.eepromAddr & 0xff);
419	if ( addr == 0 )
420		return( -1 );
421
422	max = (int)(bktr->card.eepromSize * EEPROMBLOCKSIZE);
423	if ( (offset + count) > max )
424		return( -1 );
425
426	/* set the start address */
427	if ( i2cWrite( bktr, addr, offset, -1 ) == -1 )
428		return( -1 );
429
430	/* the read cycle */
431	for ( x = 0; x < count; ++x ) {
432		if ( (byte = i2cRead( bktr, (addr | 1) )) == -1 )
433			return( -1 );
434		data[ x ] = byte;
435	}
436
437	return( 0 );
438}
439
440
441#define ABSENT		(-1)
442
443/*
444 * get a signature of the card
445 * read all 128 possible i2c read addresses from 0x01 thru 0xff
446 * build a bit array with a 1 bit for each i2c device that responds
447 *
448 * XXX FIXME: use offset & count args
449 */
450int
451signCard( bktr_ptr_t bktr, int offset, int count, u_char* sig )
452{
453	int	x;
454
455	for ( x = 0; x < 16; ++x )
456		sig[ x ] = 0;
457
458	for ( x = 0; x < count; ++x ) {
459		if ( i2cRead( bktr, (2 * x) + 1 ) != ABSENT ) {
460			sig[ x / 8 ] |= (1 << (x % 8) );
461		}
462	}
463
464	return( 0 );
465}
466
467
468/*
469 * check_for_i2c_devices.
470 * Some BT848 cards have no tuner and no additional i2c devices
471 * eg stereo decoder. These are used for video conferencing or capture from
472 * a video camera. (eg VideoLogic Captivator PCI, Intel SmartCapture card).
473 *
474 * Determine if there are any i2c devices present. There are none present if
475 *  a) reading from all 128 devices returns ABSENT (-1) for each one
476 *     (eg VideoLogic Captivator PCI with BT848)
477 *  b) reading from all 128 devices returns 0 for each one
478 *     (eg VideoLogic Captivator PCI rev. 2F with BT848A)
479 */
480static int check_for_i2c_devices( bktr_ptr_t bktr ){
481  int x, temp_read;
482  int i2c_all_0 = 1;
483  int i2c_all_absent = 1;
484  for ( x = 0; x < 128; ++x ) {
485    temp_read = i2cRead( bktr, (2 * x) + 1 );
486    if (temp_read != 0)      i2c_all_0 = 0;
487    if (temp_read != ABSENT) i2c_all_absent = 0;
488  }
489
490  if ((i2c_all_0) || (i2c_all_absent)) return 0;
491  else return 1;
492}
493
494
495/*
496 * Temic/Philips datasheets say tuners can be at i2c addresses 0xc0, 0xc2,
497 * 0xc4 or 0xc6, settable by links on the tuner.
498 * Determine the actual address used on the TV card by probing read addresses.
499 */
500static int locate_tuner_address( bktr_ptr_t bktr) {
501  if (i2cRead( bktr, 0xc1) != ABSENT) return 0xc0;
502  if (i2cRead( bktr, 0xc3) != ABSENT) return 0xc2;
503  if (i2cRead( bktr, 0xc5) != ABSENT) return 0xc4;
504  if (i2cRead( bktr, 0xc7) != ABSENT) return 0xc6;
505  return -1; /* no tuner found */
506}
507
508
509/*
510 * Search for a configuration EEPROM on the i2c bus by looking at i2c addresses
511 * where EEPROMs are usually found.
512 * On some cards, the EEPROM appears in several locations, but all in the
513 * range 0xa0 to 0xae.
514 */
515static int locate_eeprom_address( bktr_ptr_t bktr) {
516  if (i2cRead( bktr, 0xa0) != ABSENT) return 0xa0;
517  if (i2cRead( bktr, 0xac) != ABSENT) return 0xac;
518  if (i2cRead( bktr, 0xae) != ABSENT) return 0xae;
519  return -1; /* no eeprom found */
520}
521
522
523/*
524 * determine the card brand/model
525 * BKTR_OVERRIDE_CARD, BKTR_OVERRIDE_TUNER, BKTR_OVERRIDE_DBX and
526 * BKTR_OVERRIDE_MSP can be used to select a specific device,
527 * regardless of the autodetection and i2c device checks.
528 *
529 * The scheme used for probing cards faces these problems:
530 *  It is impossible to work out which type of tuner is actually fitted,
531 *  (the driver cannot tell if the Tuner is PAL or NTSC, Temic or Philips)
532 *  It is impossible to determine what audio-mux hardware is connected.
533 *  It is impossible to determine if there is extra hardware connected to the
534 *  GPIO pins  (eg radio chips or MSP34xx reset logic)
535 *
536 * However some makes of card (eg Hauppauge) come with a configuration eeprom
537 * which tells us the make of the card. Most eeproms also tell us the
538 * tuner type and other features of the the cards.
539 *
540 * The current probe code works as follows
541 * A) If the card uses a Bt878/879:
542 *   1) Read the sub-system vendor id from the configuration EEPROM.
543 *      Select the required tuner, audio mux arrangement and any other
544 *      onboard features. If this fails, move to step B.
545 * B) If it card uses a Bt848, 848A, 849A or an unknown Bt878/879:
546 *   1) Look for I2C devices. If there are none fitted, it is an Intel or
547 *      VideoLogic cards.
548 *   2) Look for a configuration EEPROM.
549 *   2a) If there is one at I2C address 0xa0 it may be
550 *       a Hauppauge or an Osprey. Check the EEPROM contents to determine which
551 *       one it is. For Hauppauge, select the tuner type and audio hardware.
552 *   2b) If there is an EEPROM at I2C address 0xa8 it will be an STB card.
553 *       We still have to guess on the tuner type.
554 *
555 * C) If we do not know the card type from (A) or (B), guess at the tuner
556 *    type based on the I2C address of the tuner.
557 *
558 * D) After determining the Tuner Type, we probe the i2c bus for other
559 *    devices at known locations, eg IR-Remote Control, MSP34xx and TDA
560 *    stereo chips.
561 */
562
563
564/*
565 * These are the sub-system vendor ID codes stored in the
566 * configuration EEPROM used on Bt878/879 cards. They should match the
567 * number assigned to the company by the PCI Special Interest Group
568 */
569#ifndef __NetBSD__
570#define PCI_VENDOR_HAUPPAUGE	0x0070
571#define PCI_VENDOR_AVERMEDIA	0x1461
572#define PCI_VENDOR_STB		0x10B4
573#define PCI_VENDOR_ASKEY	0x144F
574#endif
575/* Following not confirmed with http://members.hyperlink.net.au/~chart,
576   so not added to NetBSD's pcidevs */
577#define PCI_VENDOR_LEADTEK_ALT	0x6606
578#define PCI_VENDOR_LEADTEK_ALT_2	0x6607
579#define PCI_VENDOR_LEADTEK_ALT_3	0x107d
580#define PCI_VENDOR_FLYVIDEO	0x1851
581#define PCI_VENDOR_FLYVIDEO_2	0x1852
582#define PCI_VENDOR_PINNACLE_ALT	0xBD11
583#define PCI_VENDOR_IODATA	0x10fc
584#define PCI_VENDOR_PINNACLE_NEW	0x11BD
585
586#define MODEL_IODATA_GV_BCTV3_PCI	0x4020
587
588void
589probeCard( bktr_ptr_t bktr, int verbose, int unit )
590{
591	int		card, i,j, card_found;
592	int		status;
593	u_char 		probe_signature[128], *probe_temp;
594        int   		any_i2c_devices;
595	u_char 		eeprom[256];
596	int 		tuner_i2c_address = -1;
597	int 		eeprom_i2c_address = -1;
598
599	/* Select all GPIO bits as inputs */
600	OUTL(bktr, BKTR_GPIO_OUT_EN, 0);
601	if (bootverbose)
602	    printf("%s: GPIO is 0x%08x\n", bktr_name(bktr),
603		   INL(bktr, BKTR_GPIO_DATA));
604
605#ifdef HAUPPAUGE_MSP_RESET
606	/* Reset the MSP34xx audio chip. This resolves bootup card
607	 * detection problems with old Bt848 based Hauppauge cards with
608	 * MSP34xx stereo audio chips. This must be user enabled because
609	 * at this point the probe function does not know the card type. */
610        OUTL(bktr, BKTR_GPIO_OUT_EN, INL(bktr, BKTR_GPIO_OUT_EN) | (1<<5));
611        OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
612        DELAY(2500); /* wait 2.5ms */
613        OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) & ~(1<<5)); /* write '0' */
614        DELAY(2500); /* wait 2.5ms */
615        OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
616        DELAY(2500); /* wait 2.5ms */
617#endif
618
619	/* Check for the presence of i2c devices */
620        any_i2c_devices = check_for_i2c_devices( bktr );
621
622
623	/* Check for a user specified override on the card selection */
624#if defined( BKTR_OVERRIDE_CARD )
625	bktr->card = cards[ (card = BKTR_OVERRIDE_CARD) ];
626	goto checkEEPROM;
627#endif
628	if (bktr->bt848_card != -1 ) {
629	  bktr->card = cards[ (card = bktr->bt848_card) ];
630	  goto checkEEPROM;
631	}
632
633
634	/* No override, so try and determine the make of the card */
635
636        /* On BT878/879 cards, read the sub-system vendor id */
637	/* This identifies the manufacturer of the card and the model */
638	/* In theory this can be read from PCI registers but this does not */
639	/* appear to work on the FlyVideo 98. Hauppauge also warned that */
640	/* the PCI registers are sometimes not loaded correctly. */
641	/* Therefore, I will read the sub-system vendor ID from the EEPROM */
642	/* (just like the Bt878 does during power up initialisation) */
643
644        if ((bktr->id==BROOKTREE_878) || (bktr->id==BROOKTREE_879)) {
645	    /* Try and locate the EEPROM */
646	    eeprom_i2c_address = locate_eeprom_address( bktr );
647	    if (eeprom_i2c_address != -1) {
648
649                unsigned int subsystem_vendor_id; /* vendors PCI-SIG ID */
650                unsigned int subsystem_id;        /* board model number */
651		unsigned int byte_252, byte_253, byte_254, byte_255;
652
653		bktr->card = cards[ (card = CARD_UNKNOWN) ];
654		bktr->card.eepromAddr = eeprom_i2c_address;
655		bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
656
657	        readEEProm(bktr, 0, 256, (u_char *) &eeprom );
658                byte_252 = (unsigned int)eeprom[252];
659                byte_253 = (unsigned int)eeprom[253];
660                byte_254 = (unsigned int)eeprom[254];
661                byte_255 = (unsigned int)eeprom[255];
662
663                subsystem_id        = (byte_252 << 8) | byte_253;
664                subsystem_vendor_id = (byte_254 << 8) | byte_255;
665
666	        if ( bootverbose )
667	            printf("%s: subsystem 0x%04x 0x%04x\n", bktr_name(bktr),
668			   subsystem_vendor_id, subsystem_id);
669
670                if (subsystem_vendor_id == PCI_VENDOR_AVERMEDIA) {
671                    bktr->card = cards[ (card = CARD_AVER_MEDIA) ];
672		    bktr->card.eepromAddr = eeprom_i2c_address;
673		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
674                    goto checkTuner;
675                }
676
677                if (subsystem_vendor_id == PCI_VENDOR_HAUPPAUGE) {
678                    bktr->card = cards[ (card = CARD_HAUPPAUGE) ];
679		    bktr->card.eepromAddr = eeprom_i2c_address;
680		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
681                    goto checkTuner;
682                }
683
684                if ((subsystem_vendor_id == PCI_VENDOR_FLYVIDEO)
685                 || (subsystem_vendor_id == PCI_VENDOR_FLYVIDEO_2) ) {
686                    bktr->card = cards[ (card = CARD_FLYVIDEO) ];
687		    bktr->card.eepromAddr = eeprom_i2c_address;
688		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
689                    goto checkTuner;
690                }
691
692                if (subsystem_vendor_id == PCI_VENDOR_STB) {
693                    bktr->card = cards[ (card = CARD_STB) ];
694		    bktr->card.eepromAddr = eeprom_i2c_address;
695		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
696                    goto checkTuner;
697                }
698
699                if (subsystem_vendor_id == PCI_VENDOR_ASKEY) {
700                    bktr->card = cards[ (card = CARD_ASKEY_DYNALINK_MAGIC_TVIEW) ];
701		    bktr->card.eepromAddr = eeprom_i2c_address;
702		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
703                    goto checkTuner;
704                }
705
706                if ((subsystem_vendor_id == PCI_VENDOR_LEADTEK_ALT)
707		 || (subsystem_vendor_id == PCI_VENDOR_LEADTEK_ALT_2)
708		 || (subsystem_vendor_id == PCI_VENDOR_LEADTEK_ALT_3)) {
709                    bktr->card = cards[ (card = CARD_LEADTEK) ];
710		    bktr->card.eepromAddr = eeprom_i2c_address;
711		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
712                    goto checkTuner;
713                }
714
715		if (subsystem_vendor_id == PCI_VENDOR_PINNACLE_ALT) {
716                    bktr->card = cards[ (card = CARD_MIRO) ];
717		    bktr->card.eepromAddr = eeprom_i2c_address;
718		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
719                    goto checkTuner;
720                }
721
722		if (subsystem_vendor_id == 0x10fc &&
723		    subsystem_id == 0x4020) {
724		    bktr->card = cards[ (card = CARD_IO_BCTV3) ];
725		    bktr->card.eepromAddr = eeprom_i2c_address;
726		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
727		    goto checkTuner;
728		}
729
730		if (subsystem_vendor_id == PCI_VENDOR_PINNACLE_NEW) {
731                    bktr->card = cards[ (card = CARD_PINNACLE_PCTV_RAVE) ];
732		    bktr->card.eepromAddr = eeprom_i2c_address;
733		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
734
735		    TDA9887_init(bktr, 0);
736
737		    /* look for a tuner */
738		    tuner_i2c_address = locate_tuner_address( bktr );
739		    printf( "%s: tuner @ %#x\n", bktr_name(bktr), tuner_i2c_address );
740		    select_tuner( bktr, TUNER_MT2032 );
741
742		    goto checkDBX;
743                }
744
745                /* Vendor is unknown. We will use the standard probe code */
746		/* which may not give best results */
747                printf("%s: Warning - card vendor 0x%04x (model 0x%04x) unknown.\n",
748		       bktr_name(bktr), subsystem_vendor_id, subsystem_id);
749            }
750	    else
751	    {
752                printf("%s: Card has no configuration EEPROM. Cannot determine card make.\n",
753		       bktr_name(bktr));
754	    }
755	} /* end of bt878/bt879 card detection code */
756
757	/* If we get to this point, we must have a Bt848/848A/849A card */
758	/* or a Bt878/879 with an unknown subsystem vendor id */
759        /* Try and determine the make of card by clever i2c probing */
760
761   	/* Check for i2c devices. If none, move on */
762	if (!any_i2c_devices) {
763		bktr->card = cards[ (card = CARD_INTEL) ];
764		bktr->card.eepromAddr = 0;
765		bktr->card.eepromSize = 0;
766		goto checkTuner;
767	}
768
769        /* Look for Hauppauge, STB and Osprey cards by the presence */
770	/* of an EEPROM */
771        /* Note: Bt878 based cards also use EEPROMs so we can only do this */
772        /* test on BT848/848A and 849A based cards. */
773	if ((bktr->id==BROOKTREE_848)  ||
774	    (bktr->id==BROOKTREE_848A) ||
775	    (bktr->id==BROOKTREE_849A)) {
776
777            /* At i2c address 0xa0, look for Hauppauge and Osprey cards */
778            if ( (status = i2cRead( bktr, PFC8582_RADDR )) != ABSENT ) {
779
780		    /* Read the eeprom contents */
781		    bktr->card = cards[ (card = CARD_UNKNOWN) ];
782		    bktr->card.eepromAddr = PFC8582_WADDR;
783		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
784	            readEEProm(bktr, 0, 128, (u_char *) &eeprom );
785
786		    /* For Hauppauge, check the EEPROM begins with 0x84 */
787		    if (eeprom[0] == 0x84) {
788                            bktr->card = cards[ (card = CARD_HAUPPAUGE) ];
789			    bktr->card.eepromAddr = PFC8582_WADDR;
790			    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
791                            goto checkTuner;
792		    }
793
794		    /* For Osprey, check the EEPROM begins with "MMAC" */
795		    if (  (eeprom[0] == 'M') &&(eeprom[1] == 'M')
796			&&(eeprom[2] == 'A') &&(eeprom[3] == 'C')) {
797                            bktr->card = cards[ (card = CARD_OSPREY) ];
798			    bktr->card.eepromAddr = PFC8582_WADDR;
799			    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
800                            goto checkTuner;
801		    }
802		    printf("%s: Warning: Unknown card type. EEPROM data not recognised\n",
803			   bktr_name(bktr));
804		    printf("%s: %x %x %x %x\n", bktr_name(bktr),
805			   eeprom[0],eeprom[1],eeprom[2],eeprom[3]);
806            }
807
808            /* look for an STB card */
809            if ( (status = i2cRead( bktr, X24C01_RADDR )) != ABSENT ) {
810                    bktr->card = cards[ (card = CARD_STB) ];
811		    bktr->card.eepromAddr = X24C01_WADDR;
812		    bktr->card.eepromSize = (u_char)(128 / EEPROMBLOCKSIZE);
813                    goto checkTuner;
814            }
815
816	}
817
818	signCard( bktr, 1, 128, (u_char *)  &probe_signature );
819
820	if (bootverbose) {
821	  printf("%s: card signature: ", bktr_name(bktr));
822	  for (j = 0; j < Bt848_MAX_SIGN; j++) {
823	    printf(" %02x ", probe_signature[j]);
824	  }
825	  printf("\n\n");
826	}
827	for (i = 0;
828	     i < (sizeof bt848_card_signature)/ sizeof (struct bt848_card_sig);
829	     i++ ) {
830
831	  card_found = 1;
832	  probe_temp = (u_char *) &bt848_card_signature[i].signature;
833
834	  for (j = 0; j < Bt848_MAX_SIGN; j++) {
835	    if ((probe_temp[j] & 0xf) != (probe_signature[j] & 0xf)) {
836	      card_found = 0;
837	      break;
838	    }
839
840	  }
841	  if (card_found) {
842	    bktr->card = cards[ card = bt848_card_signature[i].card];
843	    eeprom_i2c_address = locate_eeprom_address( bktr );
844	    if (eeprom_i2c_address != -1) {
845		bktr->card.eepromAddr = eeprom_i2c_address;
846		bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
847	    } else {
848		bktr->card.eepromAddr = 0;
849		bktr->card.eepromSize = 0;
850	    }
851	    tuner_i2c_address = locate_tuner_address( bktr );
852	    select_tuner( bktr, bt848_card_signature[i].tuner );
853	    goto checkDBX;
854	  }
855	}
856
857	/* We do not know the card type. Default to Miro */
858	bktr->card = cards[ (card = CARD_MIRO) ];
859
860
861checkEEPROM:
862	/* look for a configuration eeprom */
863	eeprom_i2c_address = locate_eeprom_address( bktr );
864	if (eeprom_i2c_address != -1) {
865	    bktr->card.eepromAddr = eeprom_i2c_address;
866	    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
867	} else {
868	    bktr->card.eepromAddr = 0;
869	    bktr->card.eepromSize = 0;
870	}
871
872
873checkTuner:
874
875	/* look for a tuner */
876	tuner_i2c_address = locate_tuner_address( bktr );
877	if ( tuner_i2c_address == -1 ) {
878		select_tuner( bktr, NO_TUNER );
879		goto checkDBX;
880	}
881
882#if defined( BKTR_OVERRIDE_TUNER )
883	select_tuner( bktr, BKTR_OVERRIDE_TUNER );
884	goto checkDBX;
885#endif
886	if (bktr->bt848_tuner != -1 ) {
887	  select_tuner( bktr, bktr->bt848_tuner & 0xff );
888	  goto checkDBX;
889	}
890
891	/* Check for i2c devices */
892	if (!any_i2c_devices) {
893		select_tuner( bktr, NO_TUNER );
894		goto checkDBX;
895	}
896
897	/* differentiate type of tuner */
898
899	switch (card) {
900	case CARD_MIRO:
901	    switch (((INL(bktr, BKTR_GPIO_DATA) >> 10)-1)&7) {
902	    case 0: select_tuner( bktr, TEMIC_PAL ); break;
903	    case 1: select_tuner( bktr, PHILIPS_PAL ); break;
904	    case 2: select_tuner( bktr, PHILIPS_NTSC ); break;
905	    case 3: select_tuner( bktr, PHILIPS_SECAM ); break;
906	    case 4: select_tuner( bktr, NO_TUNER ); break;
907	    case 5: select_tuner( bktr, PHILIPS_PALI ); break;
908	    case 6: select_tuner( bktr, TEMIC_NTSC ); break;
909	    case 7: select_tuner( bktr, TEMIC_PALI ); break;
910	    }
911	    goto checkDBX;
912	    break;
913
914	case CARD_HAUPPAUGE:
915	    /* Hauppauge kindly supplied the following Tuner Table */
916	    /* FIXME: I think the tuners the driver selects for types */
917	    /* 0x08 and 0x15 may be incorrect but no one has complained. */
918	    /* Old Temic tuners had their own API, but newer Temic tuners */
919	    /* have the same API as Philips tuners */
920	    /*
921  ID  Tuner Model           Format			We select Format
922 0x00 NONE
923 0x01 EXTERNAL
924 0x02 OTHER
925 0x03 Philips FI1216        BG
926 0x04 Philips FI1216MF      BGLL'			PHILIPS_SECAM
927 0x05 Philips FI1236        MN 				PHILIPS_NTSC
928 0x06 Philips FI1246        I 				PHILIPS_PALI
929 0x07 Philips FI1256        DK
930 0x08 Philips FI1216 MK2    BG 				PHILIPS_PALI
931 0x09 Philips FI1216MF MK2  BGLL' 			PHILIPS_SECAM
932 0x0a Philips FI1236 MK2    MN 				PHILIPS_NTSC
933 0x0b Philips FI1246 MK2    I 				PHILIPS_PALI
934 0x0c Philips FI1256 MK2    DK
935 0x0d Temic 4032FY5         NTSC			TEMIC_NTSC
936 0x0e Temic 4002FH5         BG				TEMIC_PAL
937 0x0f Temic 4062FY5         I 				TEMIC_PALI
938 0x10 Philips FR1216 MK2    BG
939 0x11 Philips FR1216MF MK2  BGLL' 			PHILIPS_FR1236_SECAM
940 0x12 Philips FR1236 MK2    MN 				PHILIPS_FR1236_NTSC
941 0x13 Philips FR1246 MK2    I
942 0x14 Philips FR1256 MK2    DK
943 0x15 Philips FM1216        BG 				PHILIPS_FR1216_PAL
944 0x16 Philips FM1216MF      BGLL' 			PHILIPS_FR1236_SECAM
945 0x17 Philips FM1236        MN 				PHILIPS_FR1236_NTSC
946 0x18 Philips FM1246        I
947 0x19 Philips FM1256        DK
948 0x1a Temic 4036FY5         MN (FI1236 MK2 clone)	PHILIPS_NTSC
949 0x1b Samsung TCPN9082D     MN
950 0x1c Samsung TCPM9092P     Pal BG/I/DK
951 0x1d Temic 4006FH5         BG				PHILIPS_PALI
952 0x1e Samsung TCPN9085D     MN/Radio
953 0x1f Samsung TCPB9085P     Pal BG/I/DK / Radio
954 0x20 Samsung TCPL9091P     Pal BG & Secam L/L'
955 0x21 Temic 4039FY5         NTSC Radio
956 0x22 Philips FQ1216ME      Pal BGIDK & Secam L/L'
957 0x23 Temic 4066FY5         Pal I (FI1246 MK2 clone)	PHILIPS_PALI
958 0x24 Philips TD1536        MN/ATSCDigital
959 0x25 Philips TD1536D       MN/ATSCDigital DUAL INPUT
960 0x26 Philips FMR1236       M/N FM(no demod)
961 0x27 Philips FI1256MP      B/G, D/K
962 0x28 Samsung TCPQ9091P     BG/I/DK, L/L'
963 0x29 Temic 4006FN5         BG/I/DK
964 0x2a Temic 4009FR5         BG FM			PHILIPS_FR1216_PAL
965 0x2b Temic 4046FM5         B/G, I, D/K, L/L'
966 0x2c Temic 4009FN5         B/G, I, D/K, FM (no demod)
967 0x2d Philips TD1536D_FH_44 MN/ATSCDigital DUAL INPUT
968	    */
969
970
971	    /* Determine the model number from the eeprom */
972	    if (bktr->card.eepromAddr != 0) {
973	        /* eeprom data block structure */
974	        unsigned char *block_1, *block_2, *block_3, *block_4;
975	        int block_1_data_size,  block_2_data_size, block_3_data_size;
976	        int block_1_total_size, block_2_total_size, block_3_total_size;
977		int block_4_header_size;
978
979		unsigned int model,revision;
980		unsigned char tuner_code;
981		unsigned char no_audio_mux;
982
983		readEEProm(bktr, 0, 128, (u_char *) &eeprom );
984
985	        /* LOCATE THE EEPROM DATA BLOCKS */
986	        block_1 = &eeprom[0];
987	        block_1_data_size = (block_1[2] << 8 | block_1[1]);
988	        block_1_total_size = block_1_data_size + 3; /* Header bytes */
989
990	        block_2 = &eeprom[block_1_total_size];
991	        block_2_data_size = (block_2[2] << 8 | block_2[1]);
992	        block_2_total_size = block_2_data_size + 3; /* Header bytes */
993
994	        block_3 = &eeprom[block_1_total_size + block_2_total_size];
995	        block_3_data_size = (block_3[0] &0x07);
996	        block_3_total_size = block_3_data_size + 1; /* Header size */
997
998	        block_4 = &eeprom[block_1_total_size +block_2_total_size +block_3_total_size];
999	        block_4_header_size = 1;
1000
1001		model    = (block_1[12] << 8  | block_1[11]);
1002		revision = (block_1[15] << 16 | block_1[14] << 8 | block_1[13]);
1003
1004		tuner_code = block_1[9];
1005
1006		no_audio_mux = ((block_3[3] >> 7) &0x01);
1007
1008		if (no_audio_mux) bktr->audio_mux_present = 0;
1009
1010		if (verbose)
1011		    printf("%s: Hauppauge Model %d %c%c%c%c\n",
1012			   bktr_name(bktr),
1013			   model,
1014			   ((revision >> 18) & 0x3f) + 32,
1015			   ((revision >> 12) & 0x3f) + 32,
1016			   ((revision >>  6) & 0x3f) + 32,
1017			   ((revision >>  0) & 0x3f) + 32 );
1018
1019	        /* Determine the tuner type from the eeprom */
1020
1021		switch (tuner_code) {
1022
1023		  case 0x5:
1024                  case 0x0a:
1025                  case 0x1a:
1026		    select_tuner( bktr, PHILIPS_NTSC );
1027		    goto checkDBX;
1028
1029		  case 0x4:
1030                  case 0x9:
1031		    select_tuner( bktr, PHILIPS_SECAM );
1032		    goto checkDBX;
1033
1034                  case 0x11:
1035	          case 0x16:
1036		    select_tuner( bktr, PHILIPS_FR1236_SECAM );
1037		    goto checkDBX;
1038
1039                  case 0x12:
1040	          case 0x17:
1041		  case 0x21:
1042		    select_tuner( bktr, PHILIPS_FR1236_NTSC );
1043		    goto checkDBX;
1044
1045		  case 0x6:
1046	          case 0x8:
1047	          case 0xb:
1048	          case 0x1d:
1049	          case 0x23:
1050		    select_tuner( bktr, PHILIPS_PALI );
1051		    goto checkDBX;
1052
1053	          case 0xd:
1054		    select_tuner( bktr, TEMIC_NTSC );
1055		    goto checkDBX;
1056
1057                  case 0xe:
1058		    select_tuner( bktr, TEMIC_PAL );
1059		    goto checkDBX;
1060
1061	          case 0xf:
1062		    select_tuner( bktr, TEMIC_PALI );
1063		    goto checkDBX;
1064
1065                  case 0x15:
1066		    select_tuner( bktr, PHILIPS_FR1216_PAL );
1067		    goto checkDBX;
1068
1069                  case 0x2a:
1070		    bktr->msp_use_mono_source = 1;
1071		    select_tuner( bktr, PHILIPS_FR1216_PAL );
1072		    goto checkDBX;
1073
1074	          default :
1075		    printf("%s: Warning - Unknown Hauppauge Tuner 0x%x\n",
1076			   bktr_name(bktr), tuner_code);
1077		}
1078	    }
1079	    break;
1080
1081
1082	case CARD_AVER_MEDIA:
1083	    /* AVerMedia kindly supplied some details of their EEPROM contents
1084	     * which allow us to auto select the Tuner Type.
1085	     * Only the newer AVerMedia cards actually have an EEPROM.
1086	     */
1087	    if (bktr->card.eepromAddr != 0) {
1088
1089		u_char tuner_make;   /* Eg Philips, Temic */
1090		u_char tuner_tv_fm;  /* TV or TV with FM Radio */
1091		u_char tuner_format; /* Eg NTSC, PAL, SECAM */
1092		int    tuner;
1093
1094		int tuner_0_table[] = {
1095			PHILIPS_NTSC,  PHILIPS_PAL,
1096			PHILIPS_PAL,   PHILIPS_PAL,
1097			PHILIPS_PAL,   PHILIPS_PAL,
1098			PHILIPS_SECAM, PHILIPS_SECAM,
1099			PHILIPS_SECAM, PHILIPS_PAL};
1100
1101		int tuner_0_fm_table[] = {
1102			PHILIPS_FR1236_NTSC,  PHILIPS_FR1216_PAL,
1103			PHILIPS_FR1216_PAL,   PHILIPS_FR1216_PAL,
1104			PHILIPS_FR1216_PAL,   PHILIPS_FR1216_PAL,
1105			PHILIPS_FR1236_SECAM, PHILIPS_FR1236_SECAM,
1106			PHILIPS_FR1236_SECAM, PHILIPS_FR1216_PAL};
1107
1108		int tuner_1_table[] = {
1109			TEMIC_NTSC,  TEMIC_PAL,   TEMIC_PAL,
1110			TEMIC_PAL,   TEMIC_PAL,   TEMIC_PAL,
1111			TEMIC_SECAM, TEMIC_SECAM, TEMIC_SECAM,
1112			TEMIC_PAL};
1113
1114
1115		/* Extract information from the EEPROM data */
1116	    	readEEProm(bktr, 0, 128, (u_char *) &eeprom );
1117
1118		tuner_make   = (eeprom[0x41] & 0x7);
1119		tuner_tv_fm  = (eeprom[0x41] & 0x18) >> 3;
1120		tuner_format = (eeprom[0x42] & 0xf0) >> 4;
1121
1122		/* Treat tuner make 0 (Philips) and make 2 (LG) the same */
1123		if ( ((tuner_make == 0) || (tuner_make == 2))
1124		    && (tuner_format <= 9) && (tuner_tv_fm == 0) ) {
1125			tuner = tuner_0_table[tuner_format];
1126			select_tuner( bktr, tuner );
1127			goto checkDBX;
1128		}
1129
1130		if ( ((tuner_make == 0) || (tuner_make == 2))
1131		    && (tuner_format <= 9) && (tuner_tv_fm == 1) ) {
1132			tuner = tuner_0_fm_table[tuner_format];
1133			select_tuner( bktr, tuner );
1134			goto checkDBX;
1135		}
1136
1137		if ( (tuner_make == 1) && (tuner_format <= 9) ) {
1138			tuner = tuner_1_table[tuner_format];
1139			select_tuner( bktr, tuner );
1140			goto checkDBX;
1141		}
1142
1143	    	printf("%s: Warning - Unknown AVerMedia Tuner Make %d Format %d\n",
1144			bktr_name(bktr), tuner_make, tuner_format);
1145	    }
1146	    break;
1147
1148	case CARD_LEADTEK:
1149#if BKTR_SYSTEM_DEFAULT == BROOKTREE_PAL
1150	    select_tuner( bktr, PHILIPS_FR1216_PAL );
1151#else
1152	    select_tuner( bktr, PHILIPS_FR1236_NTSC );
1153#endif
1154            goto checkDBX;
1155	    break;
1156
1157	case CARD_IO_BCTV3:
1158	    select_tuner( bktr, ALPS_TSCH5 ); /* ALPS_TSCH6, in fact. */
1159	    goto checkDBX;
1160	    break;
1161
1162	} /* end switch(card) */
1163
1164
1165        /* At this point, a goto checkDBX has not occured */
1166        /* We have not been able to select a Tuner */
1167        /* Some cards make use of the tuner address to */
1168        /* identify the make/model of tuner */
1169
1170        /* At address 0xc0/0xc1 we often find a TEMIC NTSC */
1171        if ( i2cRead( bktr, 0xc1 ) != ABSENT ) {
1172	    select_tuner( bktr, TEMIC_NTSC );
1173            goto checkDBX;
1174        }
1175
1176        /* At address 0xc6/0xc7 we often find a PHILIPS NTSC Tuner */
1177        if ( i2cRead( bktr, 0xc7 ) != ABSENT ) {
1178	    select_tuner( bktr, PHILIPS_NTSC );
1179            goto checkDBX;
1180        }
1181
1182        /* Address 0xc2/0xc3 is default (or common address) for several */
1183	/* tuners and we cannot tell which is which. */
1184	/* And for all other tuner i2c addresses, select the default */
1185	select_tuner( bktr, DEFAULT_TUNER );
1186
1187
1188checkDBX:
1189#if defined( BKTR_OVERRIDE_DBX )
1190	bktr->card.dbx = BKTR_OVERRIDE_DBX;
1191	goto checkMSP;
1192#endif
1193   /* Check for i2c devices */
1194	if (!any_i2c_devices) {
1195		goto checkMSP;
1196	}
1197
1198	/* probe for BTSC (dbx) chip */
1199	if ( i2cRead( bktr, TDA9850_RADDR ) != ABSENT )
1200		bktr->card.dbx = 1;
1201
1202checkMSP:
1203	/* If this is a Hauppauge Bt878 card, we need to enable the
1204	 * MSP 34xx audio chip.
1205	 * If this is a Hauppauge Bt848 card, reset the MSP device.
1206	 * The MSP reset line is wired to GPIO pin 5. On Bt878 cards a pulldown
1207	 * resistor holds the device in reset until we set GPIO pin 5.
1208         */
1209
1210	/* Optionally skip the MSP reset. This is handy if you initialise the
1211	 * MSP audio in another operating system (eg Windows) first and then
1212	 * do a soft reboot.
1213	 */
1214
1215#ifndef BKTR_NO_MSP_RESET
1216	if (card == CARD_HAUPPAUGE) {
1217            OUTL(bktr, BKTR_GPIO_OUT_EN, INL(bktr, BKTR_GPIO_OUT_EN) | (1<<5));
1218            OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
1219            DELAY(2500); /* wait 2.5ms */
1220            OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) & ~(1<<5)); /* write '0' */
1221            DELAY(2500); /* wait 2.5ms */
1222            OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
1223            DELAY(2500); /* wait 2.5ms */
1224        }
1225#endif
1226
1227#if defined( BKTR_OVERRIDE_MSP )
1228	bktr->card.msp3400c = BKTR_OVERRIDE_MSP;
1229	goto checkMSPEnd;
1230#endif
1231
1232	/* Check for i2c devices */
1233	if (!any_i2c_devices) {
1234		goto checkMSPEnd;
1235	}
1236
1237	if ( i2cRead( bktr, MSP3400C_RADDR ) != ABSENT ) {
1238		bktr->card.msp3400c = 1;
1239	}
1240
1241checkMSPEnd:
1242
1243	if (bktr->card.msp3400c) {
1244		bktr->msp_addr = MSP3400C_WADDR;
1245		msp_read_id( bktr );
1246		printf("%s: Detected a MSP%s at 0x%x\n", bktr_name(bktr),
1247		       bktr->msp_version_string,
1248		       bktr->msp_addr);
1249
1250	}
1251
1252/* Check for Dolby Surround Sound DPL3518A sound chip */
1253	if ( i2cRead( bktr, DPL3518A_RADDR ) != ABSENT ) {
1254		bktr->card.dpl3518a = 1;
1255	}
1256
1257	if (bktr->card.dpl3518a) {
1258		bktr->dpl_addr = DPL3518A_WADDR;
1259		dpl_read_id( bktr );
1260		printf("%s: Detected a DPL%s at 0x%x\n", bktr_name(bktr),
1261		       bktr->dpl_version_string,
1262		       bktr->dpl_addr);
1263	}
1264
1265/* Start of Check Remote */
1266        /* Check for the Hauppauge IR Remote Control */
1267        /* If there is an external unit, the internal will be ignored */
1268
1269        bktr->remote_control = 0; /* initial value */
1270
1271        if (any_i2c_devices) {
1272            if (i2cRead( bktr, HAUP_REMOTE_EXT_RADDR ) != ABSENT )
1273                {
1274                bktr->remote_control      = 1;
1275                bktr->remote_control_addr = HAUP_REMOTE_EXT_RADDR;
1276                }
1277            else if (i2cRead( bktr, HAUP_REMOTE_INT_RADDR ) != ABSENT )
1278                {
1279                bktr->remote_control      = 1;
1280                bktr->remote_control_addr = HAUP_REMOTE_INT_RADDR;
1281                }
1282
1283        }
1284        /* If a remote control is found, poll it 5 times to turn off the LED */
1285        if (bktr->remote_control) {
1286                int i;
1287                for (i=0; i<5; i++)
1288                        i2cRead( bktr, bktr->remote_control_addr );
1289        }
1290/* End of Check Remote */
1291
1292#if defined( BKTR_USE_PLL )
1293	bktr->xtal_pll_mode = BT848_USE_PLL;
1294	goto checkPLLEnd;
1295#endif
1296	/* Default is to use XTALS and not PLL mode */
1297	bktr->xtal_pll_mode = BT848_USE_XTALS;
1298
1299	/* Enable PLL mode for OSPREY users */
1300	if (card == CARD_OSPREY)
1301		bktr->xtal_pll_mode = BT848_USE_PLL;
1302
1303	/* Enable PLL mode for Video Highway Xtreme users */
1304	if (card == CARD_VIDEO_HIGHWAY_XTREME)
1305		bktr->xtal_pll_mode = BT848_USE_PLL;
1306
1307
1308	/* Most (perhaps all) Bt878 cards need to be switched to PLL mode */
1309	/* as they only fit the NTSC crystal to their cards */
1310	/* Default to enabling PLL mode for all Bt878/879 cards */
1311
1312	if ((bktr->id==BROOKTREE_878 || bktr->id==BROOKTREE_879) )
1313		bktr->xtal_pll_mode = BT848_USE_PLL;
1314
1315
1316#if defined( BKTR_USE_PLL )
1317checkPLLEnd:
1318#endif
1319
1320
1321	bktr->card.tuner_pllAddr = tuner_i2c_address;
1322
1323	if ( verbose ) {
1324		printf( "%s: %s", bktr_name(bktr), bktr->card.name );
1325		if ( bktr->card.tuner )
1326			printf( ", %s tuner", bktr->card.tuner->name );
1327		if ( bktr->card.dbx )
1328			printf( ", dbx stereo" );
1329		if ( bktr->card.msp3400c )
1330			printf( ", msp3400c stereo" );
1331		if ( bktr->card.dpl3518a )
1332			printf( ", dpl3518a dolby" );
1333                if ( bktr->remote_control )
1334                        printf( ", remote control" );
1335		printf( ".\n" );
1336	}
1337}
1338
1339#undef ABSENT
1340