xref: /dragonfly/sys/dev/video/bktr/bktr_card.c (revision 6e285212)
1 /* $FreeBSD: src/sys/dev/bktr/bktr_card.c,v 1.9.2.5 2003/02/08 02:04:57 orion Exp $ */
2 /* $DragonFly: src/sys/dev/video/bktr/bktr_card.c,v 1.2 2003/06/17 04:28:23 dillon Exp $ */
3 
4 /*
5  * This is part of the Driver for Video Capture Cards (Frame grabbers)
6  * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
7  * chipset.
8  * Copyright Roger Hardiman and Amancio Hasty.
9  *
10  * bktr_card : This deals with identifying TV cards.
11  *               trying to find the card make and model of card.
12  *               trying to find the type of tuner fitted.
13  *               reading the configuration EEPROM.
14  *               locating i2c devices.
15  *
16  */
17 
18 /*
19  * 1. Redistributions of source code must retain the
20  * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
21  * All rights reserved.
22  *
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the above copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *      This product includes software developed by Amancio Hasty and
34  *      Roger Hardiman
35  * 4. The name of the author may not be used to endorse or promote products
36  *    derived from this software without specific prior written permission.
37  *
38  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
39  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
40  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
41  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
42  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
43  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
44  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
45  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
46  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
47  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
48  * POSSIBILITY OF SUCH DAMAGE.
49  */
50 
51 #include "opt_bktr.h"		/* Include any kernel config options */
52 
53 #include <sys/param.h>
54 #include <sys/systm.h>
55 #include <sys/vnode.h>
56 
57 #ifdef __FreeBSD__
58 
59 #if (__FreeBSD_version < 500000)
60 #include <machine/clock.h>              /* for DELAY */
61 #endif
62 
63 #include <pci/pcivar.h>
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 <machine/ioctl_meteor.h>	/* Traditional location for .h files */
81 #include <machine/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  */
139 static 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 };
360 
361 struct bt848_card_sig bt848_card_signature[1]= {
362   /* IMS TURBO TV : card 5 */
363     {  5,9, {00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 02, 00, 00, 00}}
364 
365 
366 };
367 
368 
369 /*
370  * Write to the configuration EEPROM on the card.
371  * This is dangerous and will mess up your card. Therefore it is not
372  * implemented.
373  */
374 int
375 writeEEProm( bktr_ptr_t bktr, int offset, int count, u_char *data )
376 {
377         return( -1 );
378 }
379 
380 /*
381  * Read the contents of the configuration EEPROM on the card.
382  * (This is not fitted to all makes of card. All Hauppauge cards have them
383  * and so do newer Bt878 based cards.
384  */
385 int
386 readEEProm( bktr_ptr_t bktr, int offset, int count, u_char *data )
387 {
388 	int	x;
389 	int	addr;
390 	int	max;
391 	int	byte;
392 
393 	/* get the address of the EEProm */
394 	addr = (int)(bktr->card.eepromAddr & 0xff);
395 	if ( addr == 0 )
396 		return( -1 );
397 
398 	max = (int)(bktr->card.eepromSize * EEPROMBLOCKSIZE);
399 	if ( (offset + count) > max )
400 		return( -1 );
401 
402 	/* set the start address */
403 	if ( i2cWrite( bktr, addr, offset, -1 ) == -1 )
404 		return( -1 );
405 
406 	/* the read cycle */
407 	for ( x = 0; x < count; ++x ) {
408 		if ( (byte = i2cRead( bktr, (addr | 1) )) == -1 )
409 			return( -1 );
410 		data[ x ] = byte;
411 	}
412 
413 	return( 0 );
414 }
415 
416 
417 #define ABSENT		(-1)
418 
419 /*
420  * get a signature of the card
421  * read all 128 possible i2c read addresses from 0x01 thru 0xff
422  * build a bit array with a 1 bit for each i2c device that responds
423  *
424  * XXX FIXME: use offset & count args
425  */
426 int
427 signCard( bktr_ptr_t bktr, int offset, int count, u_char* sig )
428 {
429 	int	x;
430 
431 	for ( x = 0; x < 16; ++x )
432 		sig[ x ] = 0;
433 
434 	for ( x = 0; x < count; ++x ) {
435 		if ( i2cRead( bktr, (2 * x) + 1 ) != ABSENT ) {
436 			sig[ x / 8 ] |= (1 << (x % 8) );
437 		}
438 	}
439 
440 	return( 0 );
441 }
442 
443 
444 /*
445  * check_for_i2c_devices.
446  * Some BT848 cards have no tuner and no additional i2c devices
447  * eg stereo decoder. These are used for video conferencing or capture from
448  * a video camera. (eg VideoLogic Captivator PCI, Intel SmartCapture card).
449  *
450  * Determine if there are any i2c devices present. There are none present if
451  *  a) reading from all 128 devices returns ABSENT (-1) for each one
452  *     (eg VideoLogic Captivator PCI with BT848)
453  *  b) reading from all 128 devices returns 0 for each one
454  *     (eg VideoLogic Captivator PCI rev. 2F with BT848A)
455  */
456 static int check_for_i2c_devices( bktr_ptr_t bktr ){
457   int x, temp_read;
458   int i2c_all_0 = 1;
459   int i2c_all_absent = 1;
460   for ( x = 0; x < 128; ++x ) {
461     temp_read = i2cRead( bktr, (2 * x) + 1 );
462     if (temp_read != 0)      i2c_all_0 = 0;
463     if (temp_read != ABSENT) i2c_all_absent = 0;
464   }
465 
466   if ((i2c_all_0) || (i2c_all_absent)) return 0;
467   else return 1;
468 }
469 
470 
471 /*
472  * Temic/Philips datasheets say tuners can be at i2c addresses 0xc0, 0xc2,
473  * 0xc4 or 0xc6, settable by links on the tuner.
474  * Determine the actual address used on the TV card by probing read addresses.
475  */
476 static int locate_tuner_address( bktr_ptr_t bktr) {
477   if (i2cRead( bktr, 0xc1) != ABSENT) return 0xc0;
478   if (i2cRead( bktr, 0xc3) != ABSENT) return 0xc2;
479   if (i2cRead( bktr, 0xc5) != ABSENT) return 0xc4;
480   if (i2cRead( bktr, 0xc7) != ABSENT) return 0xc6;
481   return -1; /* no tuner found */
482 }
483 
484 
485 /*
486  * Search for a configuration EEPROM on the i2c bus by looking at i2c addresses
487  * where EEPROMs are usually found.
488  * On some cards, the EEPROM appears in several locations, but all in the
489  * range 0xa0 to 0xae.
490  */
491 static int locate_eeprom_address( bktr_ptr_t bktr) {
492   if (i2cRead( bktr, 0xa0) != ABSENT) return 0xa0;
493   if (i2cRead( bktr, 0xac) != ABSENT) return 0xac;
494   if (i2cRead( bktr, 0xae) != ABSENT) return 0xae;
495   return -1; /* no eeprom found */
496 }
497 
498 
499 /*
500  * determine the card brand/model
501  * BKTR_OVERRIDE_CARD, BKTR_OVERRIDE_TUNER, BKTR_OVERRIDE_DBX and
502  * BKTR_OVERRIDE_MSP can be used to select a specific device,
503  * regardless of the autodetection and i2c device checks.
504  *
505  * The scheme used for probing cards faces these problems:
506  *  It is impossible to work out which type of tuner is actually fitted,
507  *  (the driver cannot tell if the Tuner is PAL or NTSC, Temic or Philips)
508  *  It is impossible to determine what audio-mux hardware is connected.
509  *  It is impossible to determine if there is extra hardware connected to the
510  *  GPIO pins  (eg radio chips or MSP34xx reset logic)
511  *
512  * However some makes of card (eg Hauppauge) come with a configuration eeprom
513  * which tells us the make of the card. Most eeproms also tell us the
514  * tuner type and other features of the the cards.
515  *
516  * The current probe code works as follows
517  * A) If the card uses a Bt878/879:
518  *   1) Read the sub-system vendor id from the configuration EEPROM.
519  *      Select the required tuner, audio mux arrangement and any other
520  *      onboard features. If this fails, move to step B.
521  * B) If it card uses a Bt848, 848A, 849A or an unknown Bt878/879:
522  *   1) Look for I2C devices. If there are none fitted, it is an Intel or
523  *      VideoLogic cards.
524  *   2) Look for a configuration EEPROM.
525  *   2a) If there is one at I2C address 0xa0 it may be
526  *       a Hauppauge or an Osprey. Check the EEPROM contents to determine which
527  *       one it is. For Hauppauge, select the tuner type and audio hardware.
528  *   2b) If there is an EEPROM at I2C address 0xa8 it will be an STB card.
529  *       We still have to guess on the tuner type.
530  *
531  * C) If we do not know the card type from (A) or (B), guess at the tuner
532  *    type based on the I2C address of the tuner.
533  *
534  * D) After determining the Tuner Type, we probe the i2c bus for other
535  *    devices at known locations, eg IR-Remote Control, MSP34xx and TDA
536  *    stereo chips.
537  */
538 
539 
540 /*
541  * These are the sub-system vendor ID codes stored in the
542  * configuration EEPROM used on Bt878/879 cards. They should match the
543  * number assigned to the company by the PCI Special Interest Group
544  */
545 #ifndef __NetBSD__
546 #define PCI_VENDOR_HAUPPAUGE	0x0070
547 #define PCI_VENDOR_AVERMEDIA	0x1461
548 #define PCI_VENDOR_STB		0x10B4
549 #define PCI_VENDOR_ASKEY	0x144F
550 #endif
551 /* Following not confirmed with http://members.hyperlink.net.au/~chart,
552    so not added to NetBSD's pcidevs */
553 #define PCI_VENDOR_LEADTEK_ALT	0x6606
554 #define PCI_VENDOR_FLYVIDEO	0x1851
555 #define PCI_VENDOR_FLYVIDEO_2	0x1852
556 #define PCI_VENDOR_PINNACLE_ALT	0xBD11
557 #define PCI_VENDOR_IODATA	0x10fc
558 
559 #define MODEL_IODATA_GV_BCTV3_PCI	0x4020
560 
561 void
562 probeCard( bktr_ptr_t bktr, int verbose, int unit )
563 {
564 	int		card, i,j, card_found;
565 	int		status;
566 	u_char 		probe_signature[128], *probe_temp;
567         int   		any_i2c_devices;
568 	u_char 		eeprom[256];
569 	int 		tuner_i2c_address = -1;
570 	int 		eeprom_i2c_address = -1;
571 
572 	/* Select all GPIO bits as inputs */
573 	OUTL(bktr, BKTR_GPIO_OUT_EN, 0);
574 	if (bootverbose)
575 	    printf("%s: GPIO is 0x%08x\n", bktr_name(bktr),
576 		   INL(bktr, BKTR_GPIO_DATA));
577 
578 #ifdef HAUPPAUGE_MSP_RESET
579 	/* Reset the MSP34xx audio chip. This resolves bootup card
580 	 * detection problems with old Bt848 based Hauppauge cards with
581 	 * MSP34xx stereo audio chips. This must be user enabled because
582 	 * at this point the probe function does not know the card type. */
583         OUTL(bktr, BKTR_GPIO_OUT_EN, INL(bktr, BKTR_GPIO_OUT_EN) | (1<<5));
584         OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
585         DELAY(2500); /* wait 2.5ms */
586         OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) & ~(1<<5)); /* write '0' */
587         DELAY(2500); /* wait 2.5ms */
588         OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
589         DELAY(2500); /* wait 2.5ms */
590 #endif
591 
592 	/* Check for the presence of i2c devices */
593         any_i2c_devices = check_for_i2c_devices( bktr );
594 
595 
596 	/* Check for a user specified override on the card selection */
597 #if defined( BKTR_OVERRIDE_CARD )
598 	bktr->card = cards[ (card = BKTR_OVERRIDE_CARD) ];
599 	goto checkEEPROM;
600 #endif
601 	if (bktr->bt848_card != -1 ) {
602 	  bktr->card = cards[ (card = bktr->bt848_card) ];
603 	  goto checkEEPROM;
604 	}
605 
606 
607 	/* No override, so try and determine the make of the card */
608 
609         /* On BT878/879 cards, read the sub-system vendor id */
610 	/* This identifies the manufacturer of the card and the model */
611 	/* In theory this can be read from PCI registers but this does not */
612 	/* appear to work on the FlyVideo 98. Hauppauge also warned that */
613 	/* the PCI registers are sometimes not loaded correctly. */
614 	/* Therefore, I will read the sub-system vendor ID from the EEPROM */
615 	/* (just like the Bt878 does during power up initialisation) */
616 
617         if ((bktr->id==BROOKTREE_878) || (bktr->id==BROOKTREE_879)) {
618 	    /* Try and locate the EEPROM */
619 	    eeprom_i2c_address = locate_eeprom_address( bktr );
620 	    if (eeprom_i2c_address != -1) {
621 
622                 unsigned int subsystem_vendor_id; /* vendors PCI-SIG ID */
623                 unsigned int subsystem_id;        /* board model number */
624 		unsigned int byte_252, byte_253, byte_254, byte_255;
625 
626 		bktr->card = cards[ (card = CARD_UNKNOWN) ];
627 		bktr->card.eepromAddr = eeprom_i2c_address;
628 		bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
629 
630 	        readEEProm(bktr, 0, 256, (u_char *) &eeprom );
631                 byte_252 = (unsigned int)eeprom[252];
632                 byte_253 = (unsigned int)eeprom[253];
633                 byte_254 = (unsigned int)eeprom[254];
634                 byte_255 = (unsigned int)eeprom[255];
635 
636                 subsystem_id        = (byte_252 << 8) | byte_253;
637                 subsystem_vendor_id = (byte_254 << 8) | byte_255;
638 
639 	        if ( bootverbose )
640 	            printf("%s: subsystem 0x%04x 0x%04x\n", bktr_name(bktr),
641 			   subsystem_vendor_id, subsystem_id);
642 
643                 if (subsystem_vendor_id == PCI_VENDOR_AVERMEDIA) {
644                     bktr->card = cards[ (card = CARD_AVER_MEDIA) ];
645 		    bktr->card.eepromAddr = eeprom_i2c_address;
646 		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
647                     goto checkTuner;
648                 }
649 
650                 if (subsystem_vendor_id == PCI_VENDOR_HAUPPAUGE) {
651                     bktr->card = cards[ (card = CARD_HAUPPAUGE) ];
652 		    bktr->card.eepromAddr = eeprom_i2c_address;
653 		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
654                     goto checkTuner;
655                 }
656 
657                 if ((subsystem_vendor_id == PCI_VENDOR_FLYVIDEO)
658                  || (subsystem_vendor_id == PCI_VENDOR_FLYVIDEO_2) ) {
659                     bktr->card = cards[ (card = CARD_FLYVIDEO) ];
660 		    bktr->card.eepromAddr = eeprom_i2c_address;
661 		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
662                     goto checkTuner;
663                 }
664 
665                 if (subsystem_vendor_id == PCI_VENDOR_STB) {
666                     bktr->card = cards[ (card = CARD_STB) ];
667 		    bktr->card.eepromAddr = eeprom_i2c_address;
668 		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
669                     goto checkTuner;
670                 }
671 
672                 if (subsystem_vendor_id == PCI_VENDOR_ASKEY) {
673                     bktr->card = cards[ (card = CARD_ASKEY_DYNALINK_MAGIC_TVIEW) ];
674 		    bktr->card.eepromAddr = eeprom_i2c_address;
675 		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
676                     goto checkTuner;
677                 }
678 
679                 if (subsystem_vendor_id == PCI_VENDOR_LEADTEK_ALT) {
680                     bktr->card = cards[ (card = CARD_LEADTEK) ];
681 		    bktr->card.eepromAddr = eeprom_i2c_address;
682 		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
683                     goto checkTuner;
684                 }
685 
686 		if (subsystem_vendor_id == PCI_VENDOR_PINNACLE_ALT) {
687                     bktr->card = cards[ (card = CARD_MIRO) ];
688 		    bktr->card.eepromAddr = eeprom_i2c_address;
689 		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
690                     goto checkTuner;
691                 }
692 
693 		if (subsystem_vendor_id == 0x10fc &&
694 		    subsystem_id == 0x4020) {
695 		    bktr->card = cards[ (card = CARD_IO_BCTV3) ];
696 		    bktr->card.eepromAddr = eeprom_i2c_address;
697 		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
698 		    goto checkTuner;
699 		}
700 
701                 /* Vendor is unknown. We will use the standard probe code */
702 		/* which may not give best results */
703                 printf("%s: Warning - card vendor 0x%04x (model 0x%04x) unknown.\n",
704 		       bktr_name(bktr), subsystem_vendor_id, subsystem_id);
705             }
706 	    else
707 	    {
708                 printf("%s: Card has no configuration EEPROM. Cannot determine card make.\n",
709 		       bktr_name(bktr));
710 	    }
711 	} /* end of bt878/bt879 card detection code */
712 
713 	/* If we get to this point, we must have a Bt848/848A/849A card */
714 	/* or a Bt878/879 with an unknown subsystem vendor id */
715         /* Try and determine the make of card by clever i2c probing */
716 
717    	/* Check for i2c devices. If none, move on */
718 	if (!any_i2c_devices) {
719 		bktr->card = cards[ (card = CARD_INTEL) ];
720 		bktr->card.eepromAddr = 0;
721 		bktr->card.eepromSize = 0;
722 		goto checkTuner;
723 	}
724 
725         /* Look for Hauppauge, STB and Osprey cards by the presence */
726 	/* of an EEPROM */
727         /* Note: Bt878 based cards also use EEPROMs so we can only do this */
728         /* test on BT848/848A and 849A based cards. */
729 	if ((bktr->id==BROOKTREE_848)  ||
730 	    (bktr->id==BROOKTREE_848A) ||
731 	    (bktr->id==BROOKTREE_849A)) {
732 
733             /* At i2c address 0xa0, look for Hauppauge and Osprey cards */
734             if ( (status = i2cRead( bktr, PFC8582_RADDR )) != ABSENT ) {
735 
736 		    /* Read the eeprom contents */
737 		    bktr->card = cards[ (card = CARD_UNKNOWN) ];
738 		    bktr->card.eepromAddr = PFC8582_WADDR;
739 		    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
740 	            readEEProm(bktr, 0, 128, (u_char *) &eeprom );
741 
742 		    /* For Hauppauge, check the EEPROM begins with 0x84 */
743 		    if (eeprom[0] == 0x84) {
744                             bktr->card = cards[ (card = CARD_HAUPPAUGE) ];
745 			    bktr->card.eepromAddr = PFC8582_WADDR;
746 			    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
747                             goto checkTuner;
748 		    }
749 
750 		    /* For Osprey, check the EEPROM begins with "MMAC" */
751 		    if (  (eeprom[0] == 'M') &&(eeprom[1] == 'M')
752 			&&(eeprom[2] == 'A') &&(eeprom[3] == 'C')) {
753                             bktr->card = cards[ (card = CARD_OSPREY) ];
754 			    bktr->card.eepromAddr = PFC8582_WADDR;
755 			    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
756                             goto checkTuner;
757 		    }
758 		    printf("%s: Warning: Unknown card type. EEPROM data not recognised\n",
759 			   bktr_name(bktr));
760 		    printf("%s: %x %x %x %x\n", bktr_name(bktr),
761 			   eeprom[0],eeprom[1],eeprom[2],eeprom[3]);
762             }
763 
764             /* look for an STB card */
765             if ( (status = i2cRead( bktr, X24C01_RADDR )) != ABSENT ) {
766                     bktr->card = cards[ (card = CARD_STB) ];
767 		    bktr->card.eepromAddr = X24C01_WADDR;
768 		    bktr->card.eepromSize = (u_char)(128 / EEPROMBLOCKSIZE);
769                     goto checkTuner;
770             }
771 
772 	}
773 
774 	signCard( bktr, 1, 128, (u_char *)  &probe_signature );
775 
776 	if (bootverbose) {
777 	  printf("%s: card signature: ", bktr_name(bktr));
778 	  for (j = 0; j < Bt848_MAX_SIGN; j++) {
779 	    printf(" %02x ", probe_signature[j]);
780 	  }
781 	  printf("\n\n");
782 	}
783 	for (i = 0;
784 	     i < (sizeof bt848_card_signature)/ sizeof (struct bt848_card_sig);
785 	     i++ ) {
786 
787 	  card_found = 1;
788 	  probe_temp = (u_char *) &bt848_card_signature[i].signature;
789 
790 	  for (j = 0; j < Bt848_MAX_SIGN; j++) {
791 	    if ((probe_temp[j] & 0xf) != (probe_signature[j] & 0xf)) {
792 	      card_found = 0;
793 	      break;
794 	    }
795 
796 	  }
797 	  if (card_found) {
798 	    bktr->card = cards[ card = bt848_card_signature[i].card];
799 	    eeprom_i2c_address = locate_eeprom_address( bktr );
800 	    if (eeprom_i2c_address != -1) {
801 		bktr->card.eepromAddr = eeprom_i2c_address;
802 		bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
803 	    } else {
804 		bktr->card.eepromAddr = 0;
805 		bktr->card.eepromSize = 0;
806 	    }
807 	    tuner_i2c_address = locate_tuner_address( bktr );
808 	    select_tuner( bktr, bt848_card_signature[i].tuner );
809 	    goto checkDBX;
810 	  }
811 	}
812 
813 	/* We do not know the card type. Default to Miro */
814 	bktr->card = cards[ (card = CARD_MIRO) ];
815 
816 
817 checkEEPROM:
818 	/* look for a configuration eeprom */
819 	eeprom_i2c_address = locate_eeprom_address( bktr );
820 	if (eeprom_i2c_address != -1) {
821 	    bktr->card.eepromAddr = eeprom_i2c_address;
822 	    bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
823 	} else {
824 	    bktr->card.eepromAddr = 0;
825 	    bktr->card.eepromSize = 0;
826 	}
827 
828 
829 checkTuner:
830 
831 	/* look for a tuner */
832 	tuner_i2c_address = locate_tuner_address( bktr );
833 	if ( tuner_i2c_address == -1 ) {
834 		select_tuner( bktr, NO_TUNER );
835 		goto checkDBX;
836 	}
837 
838 #if defined( BKTR_OVERRIDE_TUNER )
839 	select_tuner( bktr, BKTR_OVERRIDE_TUNER );
840 	goto checkDBX;
841 #endif
842 	if (bktr->bt848_tuner != -1 ) {
843 	  select_tuner( bktr, bktr->bt848_tuner & 0xff );
844 	  goto checkDBX;
845 	}
846 
847 	/* Check for i2c devices */
848 	if (!any_i2c_devices) {
849 		select_tuner( bktr, NO_TUNER );
850 		goto checkDBX;
851 	}
852 
853 	/* differentiate type of tuner */
854 
855 	switch (card) {
856 	case CARD_MIRO:
857 	    switch (((INL(bktr, BKTR_GPIO_DATA) >> 10)-1)&7) {
858 	    case 0: select_tuner( bktr, TEMIC_PAL ); break;
859 	    case 1: select_tuner( bktr, PHILIPS_PAL ); break;
860 	    case 2: select_tuner( bktr, PHILIPS_NTSC ); break;
861 	    case 3: select_tuner( bktr, PHILIPS_SECAM ); break;
862 	    case 4: select_tuner( bktr, NO_TUNER ); break;
863 	    case 5: select_tuner( bktr, PHILIPS_PALI ); break;
864 	    case 6: select_tuner( bktr, TEMIC_NTSC ); break;
865 	    case 7: select_tuner( bktr, TEMIC_PALI ); break;
866 	    }
867 	    goto checkDBX;
868 	    break;
869 
870 	case CARD_HAUPPAUGE:
871 	    /* Hauppauge kindly supplied the following Tuner Table */
872 	    /* FIXME: I think the tuners the driver selects for types */
873 	    /* 0x08 and 0x15 may be incorrect but no one has complained. */
874 	    /* Old Temic tuners had their own API, but newer Temic tuners */
875 	    /* have the same API as Philips tuners */
876 	    /*
877   ID  Tuner Model           Format			We select Format
878  0x00 NONE
879  0x01 EXTERNAL
880  0x02 OTHER
881  0x03 Philips FI1216        BG
882  0x04 Philips FI1216MF      BGLL'			PHILIPS_SECAM
883  0x05 Philips FI1236        MN 				PHILIPS_NTSC
884  0x06 Philips FI1246        I 				PHILIPS_PALI
885  0x07 Philips FI1256        DK
886  0x08 Philips FI1216 MK2    BG 				PHILIPS_PALI
887  0x09 Philips FI1216MF MK2  BGLL' 			PHILIPS_SECAM
888  0x0a Philips FI1236 MK2    MN 				PHILIPS_NTSC
889  0x0b Philips FI1246 MK2    I 				PHILIPS_PALI
890  0x0c Philips FI1256 MK2    DK
891  0x0d Temic 4032FY5         NTSC			TEMIC_NTSC
892  0x0e Temic 4002FH5         BG				TEMIC_PAL
893  0x0f Temic 4062FY5         I 				TEMIC_PALI
894  0x10 Philips FR1216 MK2    BG
895  0x11 Philips FR1216MF MK2  BGLL' 			PHILIPS_FR1236_SECAM
896  0x12 Philips FR1236 MK2    MN 				PHILIPS_FR1236_NTSC
897  0x13 Philips FR1246 MK2    I
898  0x14 Philips FR1256 MK2    DK
899  0x15 Philips FM1216        BG 				PHILIPS_FR1216_PAL
900  0x16 Philips FM1216MF      BGLL' 			PHILIPS_FR1236_SECAM
901  0x17 Philips FM1236        MN 				PHILIPS_FR1236_NTSC
902  0x18 Philips FM1246        I
903  0x19 Philips FM1256        DK
904  0x1a Temic 4036FY5         MN (FI1236 MK2 clone)	PHILIPS_NTSC
905  0x1b Samsung TCPN9082D     MN
906  0x1c Samsung TCPM9092P     Pal BG/I/DK
907  0x1d Temic 4006FH5         BG				PHILIPS_PALI
908  0x1e Samsung TCPN9085D     MN/Radio
909  0x1f Samsung TCPB9085P     Pal BG/I/DK / Radio
910  0x20 Samsung TCPL9091P     Pal BG & Secam L/L'
911  0x21 Temic 4039FY5         NTSC Radio
912  0x22 Philips FQ1216ME      Pal BGIDK & Secam L/L'
913  0x23 Temic 4066FY5         Pal I (FI1246 MK2 clone)	PHILIPS_PALI
914  0x24 Philips TD1536        MN/ATSCDigital
915  0x25 Philips TD1536D       MN/ATSCDigital DUAL INPUT
916  0x26 Philips FMR1236       M/N FM(no demod)
917  0x27 Philips FI1256MP      B/G, D/K
918  0x28 Samsung TCPQ9091P     BG/I/DK, L/L'
919  0x29 Temic 4006FN5         BG/I/DK
920  0x2a Temic 4009FR5         BG FM			PHILIPS_FR1216_PAL
921  0x2b Temic 4046FM5         B/G, I, D/K, L/L'
922  0x2c Temic 4009FN5         B/G, I, D/K, FM (no demod)
923  0x2d Philips TD1536D_FH_44 MN/ATSCDigital DUAL INPUT
924 	    */
925 
926 
927 	    /* Determine the model number from the eeprom */
928 	    if (bktr->card.eepromAddr != 0) {
929 	        /* eeprom data block structure */
930 	        unsigned char *block_1, *block_2, *block_3, *block_4;
931 	        int block_1_data_size,  block_2_data_size, block_3_data_size;
932 	        int block_1_total_size, block_2_total_size, block_3_total_size;
933 		int block_4_header_size;
934 
935 		unsigned int model,revision;
936 		unsigned char tuner_code;
937 		unsigned char no_audio_mux;
938 
939 		readEEProm(bktr, 0, 128, (u_char *) &eeprom );
940 
941 	        /* LOCATE THE EEPROM DATA BLOCKS */
942 	        block_1 = &eeprom[0];
943 	        block_1_data_size = (block_1[2] << 8 | block_1[1]);
944 	        block_1_total_size = block_1_data_size + 3; /* Header bytes */
945 
946 	        block_2 = &eeprom[block_1_total_size];
947 	        block_2_data_size = (block_2[2] << 8 | block_2[1]);
948 	        block_2_total_size = block_2_data_size + 3; /* Header bytes */
949 
950 	        block_3 = &eeprom[block_1_total_size + block_2_total_size];
951 	        block_3_data_size = (block_3[0] &0x07);
952 	        block_3_total_size = block_3_data_size + 1; /* Header size */
953 
954 	        block_4 = &eeprom[block_1_total_size +block_2_total_size +block_3_total_size];
955 	        block_4_header_size = 1;
956 
957 		model    = (block_1[12] << 8  | block_1[11]);
958 		revision = (block_1[15] << 16 | block_1[14] << 8 | block_1[13]);
959 
960 		tuner_code = block_1[9];
961 
962 		no_audio_mux = ((block_3[3] >> 7) &0x01);
963 
964 		if (no_audio_mux) bktr->audio_mux_present = 0;
965 
966 		if (verbose)
967 		    printf("%s: Hauppauge Model %d %c%c%c%c\n",
968 			   bktr_name(bktr),
969 			   model,
970 			   ((revision >> 18) & 0x3f) + 32,
971 			   ((revision >> 12) & 0x3f) + 32,
972 			   ((revision >>  6) & 0x3f) + 32,
973 			   ((revision >>  0) & 0x3f) + 32 );
974 
975 	        /* Determine the tuner type from the eeprom */
976 
977 		switch (tuner_code) {
978 
979 		  case 0x5:
980                   case 0x0a:
981                   case 0x1a:
982 		    select_tuner( bktr, PHILIPS_NTSC );
983 		    goto checkDBX;
984 
985 		  case 0x4:
986                   case 0x9:
987 		    select_tuner( bktr, PHILIPS_SECAM );
988 		    goto checkDBX;
989 
990                   case 0x11:
991 	          case 0x16:
992 		    select_tuner( bktr, PHILIPS_FR1236_SECAM );
993 		    goto checkDBX;
994 
995                   case 0x12:
996 	          case 0x17:
997 		  case 0x21:
998 		    select_tuner( bktr, PHILIPS_FR1236_NTSC );
999 		    goto checkDBX;
1000 
1001 		  case 0x6:
1002 	          case 0x8:
1003 	          case 0xb:
1004 	          case 0x1d:
1005 	          case 0x23:
1006 		    select_tuner( bktr, PHILIPS_PALI );
1007 		    goto checkDBX;
1008 
1009 	          case 0xd:
1010 		    select_tuner( bktr, TEMIC_NTSC );
1011 		    goto checkDBX;
1012 
1013                   case 0xe:
1014 		    select_tuner( bktr, TEMIC_PAL );
1015 		    goto checkDBX;
1016 
1017 	          case 0xf:
1018 		    select_tuner( bktr, TEMIC_PALI );
1019 		    goto checkDBX;
1020 
1021                   case 0x15:
1022 		    select_tuner( bktr, PHILIPS_FR1216_PAL );
1023 		    goto checkDBX;
1024 
1025                   case 0x2a:
1026 		    bktr->msp_use_mono_source = 1;
1027 		    select_tuner( bktr, PHILIPS_FR1216_PAL );
1028 		    goto checkDBX;
1029 
1030 	          default :
1031 		    printf("%s: Warning - Unknown Hauppauge Tuner 0x%x\n",
1032 			   bktr_name(bktr), tuner_code);
1033 		}
1034 	    }
1035 	    break;
1036 
1037 
1038 	case CARD_AVER_MEDIA:
1039 	    /* AVerMedia kindly supplied some details of their EEPROM contents
1040 	     * which allow us to auto select the Tuner Type.
1041 	     * Only the newer AVerMedia cards actually have an EEPROM.
1042 	     */
1043 	    if (bktr->card.eepromAddr != 0) {
1044 
1045 		u_char tuner_make;   /* Eg Philips, Temic */
1046 		u_char tuner_tv_fm;  /* TV or TV with FM Radio */
1047 		u_char tuner_format; /* Eg NTSC, PAL, SECAM */
1048 		int    tuner;
1049 
1050 		int tuner_0_table[] = {
1051 			PHILIPS_NTSC,  PHILIPS_PAL,
1052 			PHILIPS_PAL,   PHILIPS_PAL,
1053 			PHILIPS_PAL,   PHILIPS_PAL,
1054 			PHILIPS_SECAM, PHILIPS_SECAM,
1055 			PHILIPS_SECAM, PHILIPS_PAL};
1056 
1057 		int tuner_0_fm_table[] = {
1058 			PHILIPS_FR1236_NTSC,  PHILIPS_FR1216_PAL,
1059 			PHILIPS_FR1216_PAL,   PHILIPS_FR1216_PAL,
1060 			PHILIPS_FR1216_PAL,   PHILIPS_FR1216_PAL,
1061 			PHILIPS_FR1236_SECAM, PHILIPS_FR1236_SECAM,
1062 			PHILIPS_FR1236_SECAM, PHILIPS_FR1216_PAL};
1063 
1064 		int tuner_1_table[] = {
1065 			TEMIC_NTSC,  TEMIC_PAL,   TEMIC_PAL,
1066 			TEMIC_PAL,   TEMIC_PAL,   TEMIC_PAL,
1067 			TEMIC_SECAM, TEMIC_SECAM, TEMIC_SECAM,
1068 			TEMIC_PAL};
1069 
1070 
1071 		/* Extract information from the EEPROM data */
1072 	    	readEEProm(bktr, 0, 128, (u_char *) &eeprom );
1073 
1074 		tuner_make   = (eeprom[0x41] & 0x7);
1075 		tuner_tv_fm  = (eeprom[0x41] & 0x18) >> 3;
1076 		tuner_format = (eeprom[0x42] & 0xf0) >> 4;
1077 
1078 		/* Treat tuner make 0 (Philips) and make 2 (LG) the same */
1079 		if ( ((tuner_make == 0) || (tuner_make == 2))
1080 		    && (tuner_format <= 9) && (tuner_tv_fm == 0) ) {
1081 			tuner = tuner_0_table[tuner_format];
1082 			select_tuner( bktr, tuner );
1083 			goto checkDBX;
1084 		}
1085 
1086 		if ( ((tuner_make == 0) || (tuner_make == 2))
1087 		    && (tuner_format <= 9) && (tuner_tv_fm == 1) ) {
1088 			tuner = tuner_0_fm_table[tuner_format];
1089 			select_tuner( bktr, tuner );
1090 			goto checkDBX;
1091 		}
1092 
1093 		if ( (tuner_make == 1) && (tuner_format <= 9) ) {
1094 			tuner = tuner_1_table[tuner_format];
1095 			select_tuner( bktr, tuner );
1096 			goto checkDBX;
1097 		}
1098 
1099 	    	printf("%s: Warning - Unknown AVerMedia Tuner Make %d Format %d\n",
1100 			bktr_name(bktr), tuner_make, tuner_format);
1101 	    }
1102 	    break;
1103 
1104 	case CARD_LEADTEK:
1105 #if BKTR_SYSTEM_DEFAULT == BROOKTREE_PAL
1106 	    select_tuner( bktr, PHILIPS_FR1216_PAL );
1107 #else
1108 	    select_tuner( bktr, PHILIPS_FR1236_NTSC );
1109 #endif
1110             goto checkDBX;
1111 	    break;
1112 
1113 	case CARD_IO_BCTV3:
1114 	    select_tuner( bktr, ALPS_TSCH5 ); /* ALPS_TSCH6, in fact. */
1115 	    goto checkDBX;
1116 	    break;
1117 
1118 	} /* end switch(card) */
1119 
1120 
1121         /* At this point, a goto checkDBX has not occured */
1122         /* We have not been able to select a Tuner */
1123         /* Some cards make use of the tuner address to */
1124         /* identify the make/model of tuner */
1125 
1126         /* At address 0xc0/0xc1 we often find a TEMIC NTSC */
1127         if ( i2cRead( bktr, 0xc1 ) != ABSENT ) {
1128 	    select_tuner( bktr, TEMIC_NTSC );
1129             goto checkDBX;
1130         }
1131 
1132         /* At address 0xc6/0xc7 we often find a PHILIPS NTSC Tuner */
1133         if ( i2cRead( bktr, 0xc7 ) != ABSENT ) {
1134 	    select_tuner( bktr, PHILIPS_NTSC );
1135             goto checkDBX;
1136         }
1137 
1138         /* Address 0xc2/0xc3 is default (or common address) for several */
1139 	/* tuners and we cannot tell which is which. */
1140 	/* And for all other tuner i2c addresses, select the default */
1141 	select_tuner( bktr, DEFAULT_TUNER );
1142 
1143 
1144 checkDBX:
1145 #if defined( BKTR_OVERRIDE_DBX )
1146 	bktr->card.dbx = BKTR_OVERRIDE_DBX;
1147 	goto checkMSP;
1148 #endif
1149    /* Check for i2c devices */
1150 	if (!any_i2c_devices) {
1151 		goto checkMSP;
1152 	}
1153 
1154 	/* probe for BTSC (dbx) chip */
1155 	if ( i2cRead( bktr, TDA9850_RADDR ) != ABSENT )
1156 		bktr->card.dbx = 1;
1157 
1158 checkMSP:
1159 	/* If this is a Hauppauge Bt878 card, we need to enable the
1160 	 * MSP 34xx audio chip.
1161 	 * If this is a Hauppauge Bt848 card, reset the MSP device.
1162 	 * The MSP reset line is wired to GPIO pin 5. On Bt878 cards a pulldown
1163 	 * resistor holds the device in reset until we set GPIO pin 5.
1164          */
1165 
1166 	/* Optionally skip the MSP reset. This is handy if you initialise the
1167 	 * MSP audio in another operating system (eg Windows) first and then
1168 	 * do a soft reboot.
1169 	 */
1170 
1171 #ifndef BKTR_NO_MSP_RESET
1172 	if (card == CARD_HAUPPAUGE) {
1173             OUTL(bktr, BKTR_GPIO_OUT_EN, INL(bktr, BKTR_GPIO_OUT_EN) | (1<<5));
1174             OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
1175             DELAY(2500); /* wait 2.5ms */
1176             OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) & ~(1<<5)); /* write '0' */
1177             DELAY(2500); /* wait 2.5ms */
1178             OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
1179             DELAY(2500); /* wait 2.5ms */
1180         }
1181 #endif
1182 
1183 #if defined( BKTR_OVERRIDE_MSP )
1184 	bktr->card.msp3400c = BKTR_OVERRIDE_MSP;
1185 	goto checkMSPEnd;
1186 #endif
1187 
1188 	/* Check for i2c devices */
1189 	if (!any_i2c_devices) {
1190 		goto checkMSPEnd;
1191 	}
1192 
1193 	if ( i2cRead( bktr, MSP3400C_RADDR ) != ABSENT ) {
1194 		bktr->card.msp3400c = 1;
1195 	}
1196 
1197 checkMSPEnd:
1198 
1199 	if (bktr->card.msp3400c) {
1200 		bktr->msp_addr = MSP3400C_WADDR;
1201 		msp_read_id( bktr );
1202 		printf("%s: Detected a MSP%s at 0x%x\n", bktr_name(bktr),
1203 		       bktr->msp_version_string,
1204 		       bktr->msp_addr);
1205 
1206 	}
1207 
1208 /* Check for Dolby Surround Sound DPL3518A sound chip */
1209 	if ( i2cRead( bktr, DPL3518A_RADDR ) != ABSENT ) {
1210 		bktr->card.dpl3518a = 1;
1211 	}
1212 
1213 	if (bktr->card.dpl3518a) {
1214 		bktr->dpl_addr = DPL3518A_WADDR;
1215 		dpl_read_id( bktr );
1216 		printf("%s: Detected a DPL%s at 0x%x\n", bktr_name(bktr),
1217 		       bktr->dpl_version_string,
1218 		       bktr->dpl_addr);
1219 	}
1220 
1221 /* Start of Check Remote */
1222         /* Check for the Hauppauge IR Remote Control */
1223         /* If there is an external unit, the internal will be ignored */
1224 
1225         bktr->remote_control = 0; /* initial value */
1226 
1227         if (any_i2c_devices) {
1228             if (i2cRead( bktr, HAUP_REMOTE_EXT_RADDR ) != ABSENT )
1229                 {
1230                 bktr->remote_control      = 1;
1231                 bktr->remote_control_addr = HAUP_REMOTE_EXT_RADDR;
1232                 }
1233             else if (i2cRead( bktr, HAUP_REMOTE_INT_RADDR ) != ABSENT )
1234                 {
1235                 bktr->remote_control      = 1;
1236                 bktr->remote_control_addr = HAUP_REMOTE_INT_RADDR;
1237                 }
1238 
1239         }
1240         /* If a remote control is found, poll it 5 times to turn off the LED */
1241         if (bktr->remote_control) {
1242                 int i;
1243                 for (i=0; i<5; i++)
1244                         i2cRead( bktr, bktr->remote_control_addr );
1245         }
1246 /* End of Check Remote */
1247 
1248 #if defined( BKTR_USE_PLL )
1249 	bktr->xtal_pll_mode = BT848_USE_PLL;
1250 	goto checkPLLEnd;
1251 #endif
1252 	/* Default is to use XTALS and not PLL mode */
1253 	bktr->xtal_pll_mode = BT848_USE_XTALS;
1254 
1255 	/* Enable PLL mode for OSPREY users */
1256 	if (card == CARD_OSPREY)
1257 		bktr->xtal_pll_mode = BT848_USE_PLL;
1258 
1259 	/* Enable PLL mode for Video Highway Xtreme users */
1260 	if (card == CARD_VIDEO_HIGHWAY_XTREME)
1261 		bktr->xtal_pll_mode = BT848_USE_PLL;
1262 
1263 
1264 	/* Most (perhaps all) Bt878 cards need to be switched to PLL mode */
1265 	/* as they only fit the NTSC crystal to their cards */
1266 	/* Default to enabling PLL mode for all Bt878/879 cards */
1267 
1268 	if ((bktr->id==BROOKTREE_878 || bktr->id==BROOKTREE_879) )
1269 		bktr->xtal_pll_mode = BT848_USE_PLL;
1270 
1271 
1272 #if defined( BKTR_USE_PLL )
1273 checkPLLEnd:
1274 #endif
1275 
1276 
1277 	bktr->card.tuner_pllAddr = tuner_i2c_address;
1278 
1279 	if ( verbose ) {
1280 		printf( "%s: %s", bktr_name(bktr), bktr->card.name );
1281 		if ( bktr->card.tuner )
1282 			printf( ", %s tuner", bktr->card.tuner->name );
1283 		if ( bktr->card.dbx )
1284 			printf( ", dbx stereo" );
1285 		if ( bktr->card.msp3400c )
1286 			printf( ", msp3400c stereo" );
1287 		if ( bktr->card.dpl3518a )
1288 			printf( ", dpl3518a dolby" );
1289                 if ( bktr->remote_control )
1290                         printf( ", remote control" );
1291 		printf( ".\n" );
1292 	}
1293 }
1294 
1295 #undef ABSENT
1296