1 /* $SourceForge: bktr_card.c,v 1.3 2003/03/11 23:11:21 thomasklausner Exp $ */
2 
3 /*        $NetBSD: bktr_card.c,v 1.25 2013/10/16 18:20:16 christos Exp $        */
4 /* $FreeBSD: src/sys/dev/bktr/bktr_card.c,v 1.16 2000/10/31 13:09:56 roger Exp$ */
5 
6 /*
7  * This is part of the Driver for Video Capture Cards (Frame grabbers)
8  * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
9  * chipset.
10  * Copyright Roger Hardiman and Amancio Hasty.
11  *
12  * bktr_card : This deals with identifying TV cards.
13  *               trying to find the card make and model of card.
14  *               trying to find the type of tuner fitted.
15  *               reading the configuration EEPROM.
16  *               locating i2c devices.
17  *
18  */
19 
20 /*
21  * 1. Redistributions of source code must retain the
22  * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
23  * All rights reserved.
24  *
25  * Redistribution and use in source and binary forms, with or without
26  * modification, are permitted provided that the following conditions
27  * are met:
28  * 1. Redistributions of source code must retain the above copyright
29  *    notice, this list of conditions and the following disclaimer.
30  * 2. Redistributions in binary form must reproduce the above copyright
31  *    notice, this list of conditions and the following disclaimer in the
32  *    documentation and/or other materials provided with the distribution.
33  * 3. All advertising materials mentioning features or use of this software
34  *    must display the following acknowledgement:
35  *      This product includes software developed by Amancio Hasty and
36  *      Roger Hardiman
37  * 4. The name of the author may not be used to endorse or promote products
38  *    derived from this software without specific prior written permission.
39  *
40  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
41  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
42  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
43  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
44  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
45  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
46  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
49  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
50  * POSSIBILITY OF SUCH DAMAGE.
51  */
52 
53 #include <sys/cdefs.h>
54 __KERNEL_RCSID(0, "$NetBSD: bktr_card.c,v 1.25 2013/10/16 18:20:16 christos Exp $");
55 
56 #include "opt_bktr.h"                   /* Include any kernel config options */
57 
58 #include <sys/param.h>
59 #include <sys/systm.h>
60 #include <sys/vnode.h>
61 
62 #ifdef __FreeBSD__
63 
64 #if (__FreeBSD_version < 500000)
65 #include <machine/clock.h>              /* for DELAY */
66 #endif
67 
68 #include <pci/pcivar.h>
69 
70 #if (__FreeBSD_version >=300000)
71 #include <machine/bus_memio.h>          /* for bus space */
72 #include <sys/bus.h>
73 #include <sys/bus.h>
74 #endif
75 #endif
76 
77 #ifdef __NetBSD__
78 #include <dev/ic/bt8xx.h>     /* NetBSD location for .h files */
79 #include <dev/pci/bktr/bktr_reg.h>
80 #include <dev/pci/bktr/bktr_core.h>
81 #include <dev/pci/bktr/bktr_tuner.h>
82 #include <dev/pci/bktr/bktr_card.h>
83 #include <dev/pci/bktr/bktr_audio.h>
84 #else
85 #include <machine/ioctl_meteor.h>       /* Traditional location for .h files */
86 #include <machine/ioctl_bt848.h>        /* extensions to ioctl_meteor.h */
87 #include <dev/bktr/bktr_reg.h>
88 #include <dev/bktr/bktr_core.h>
89 #include <dev/bktr/bktr_tuner.h>
90 #include <dev/bktr/bktr_card.h>
91 #include <dev/bktr/bktr_audio.h>
92 #endif
93 
94 /* Include the PCI Vendor definitions */
95 #ifdef __NetBSD__
96 #include <dev/pci/pcidevs.h>
97 #include <dev/pci/pcireg.h>
98 #endif
99 
100 /* Various defines */
101 #define HAUP_REMOTE_INT_WADDR   0x30
102 #define HAUP_REMOTE_INT_RADDR   0x31
103 
104 #define HAUP_REMOTE_EXT_WADDR   0x34
105 #define HAUP_REMOTE_EXT_RADDR   0x35
106 
107 /* address of BTSC/SAP decoder chip */
108 #define TDA9850_WADDR           0xb6
109 #define TDA9850_RADDR           0xb7
110 
111 /* address of MSP3400C chip */
112 #define MSP3400C_WADDR          0x80
113 #define MSP3400C_RADDR          0x81
114 
115 /* address of DPL3518A chip */
116 #define DPL3518A_WADDR          0x84
117 #define DPL3518A_RADDR          0x85
118 
119 /* EEProm (128 * 8) on an STB card */
120 #define X24C01_WADDR            0xae
121 #define X24C01_RADDR            0xaf
122 
123 
124 /* EEProm (256 * 8) on a Hauppauge card */
125 /* and on most BT878s cards to store the sub-system vendor id */
126 #define PFC8582_WADDR           0xa0
127 #define PFC8582_RADDR                   0xa1
128 
129 #if BKTR_SYSTEM_DEFAULT == BROOKTREE_PAL
130 #define DEFAULT_TUNER   PHILIPS_PALI
131 #else
132 #define DEFAULT_TUNER   PHILIPS_NTSC
133 #endif
134 
135 
136 
137 
138 /*
139  * the data for each type of card
140  *
141  * Note:
142  *   these entried MUST be kept in the order defined by the CARD_XXX defines!
143  */
144 static const struct CARDTYPE cards[] = {
145 
146           {  CARD_UNKNOWN,                        /* the card id */
147             "Unknown",                                      /* the 'name' */
148              NULL,                                /* the tuner */
149              0,                                             /* the tuner i2c address */
150              0,                                             /* dbx unknown */
151              0,
152              0,
153              0,                                             /* EEProm unknown */
154              0,                                             /* EEProm unknown */
155              { 0, 0, 0, 0, 0 },
156              0 },                                           /* GPIO mask */
157 
158           {  CARD_MIRO,                                     /* the card id */
159             "Pinnacle/Miro TV",                             /* the 'name' */
160              NULL,                                /* the tuner */
161              0,                                             /* the tuner i2c address */
162              0,                                             /* dbx unknown */
163              0,
164              0,
165              0,                                             /* EEProm unknown */
166              0,                                             /* size unknown */
167              { 0x02, 0x01, 0x00, 0x0a, 1 },       /* audio MUX values */
168              0x0f },                                        /* GPIO mask */
169 
170           {  CARD_HAUPPAUGE,                      /* the card id */
171             "Hauppauge WinCast/TV",               /* the 'name' */
172              NULL,                                /* the tuner */
173              0,                                             /* the tuner i2c address */
174              0,                                             /* dbx is optional */
175              0,
176              0,
177              PFC8582_WADDR,                       /* EEProm type */
178              (u_char)(256 / EEPROMBLOCKSIZE),     /* 256 bytes */
179              { 0x00, 0x02, 0x01, 0x04, 1 },       /* audio MUX values */
180              0x0f },                                        /* GPIO mask */
181 
182           {  CARD_STB,                                      /* the card id */
183             "STB TV/PCI",                                   /* the 'name' */
184              NULL,                                /* the tuner */
185              0,                                             /* the tuner i2c address */
186              0,                                             /* dbx is optional */
187              0,
188              0,
189              X24C01_WADDR,                        /* EEProm type */
190              (u_char)(128 / EEPROMBLOCKSIZE),     /* 128 bytes */
191              { 0x00, 0x01, 0x02, 0x02, 1 },       /* audio MUX values */
192              0x0f },                                        /* GPIO mask */
193 
194           {  CARD_INTEL,                                    /* the card id */
195             "Intel Smart Video III/VideoLogic Captivator PCI", /* the 'name' */
196              NULL,                                /* the tuner */
197              0,                                             /* the tuner i2c address */
198              0,
199              0,
200              0,
201              0,
202              0,
203              { 0, 0, 0, 0, 0 },                             /* audio MUX values */
204              0x00 },                                        /* GPIO mask */
205 
206           {  CARD_IMS_TURBO,                      /* the card id */
207             "IMS TV Turbo",                       /* the 'name' */
208              NULL,                                /* the tuner */
209              0,                                             /* the tuner i2c address */
210              0,                                             /* dbx is optional */
211              0,
212              0,
213              PFC8582_WADDR,                       /* EEProm type */
214              (u_char)(256 / EEPROMBLOCKSIZE),     /* 256 bytes */
215              { 0x01, 0x02, 0x01, 0x00, 1 },       /* audio MUX values */
216              0x0f },                                        /* GPIO mask */
217 
218         {  CARD_AVER_MEDIA,                       /* the card id */
219           "AVer Media TV/FM",                   /* the 'name' */
220            NULL,                                /* the tuner */
221              0,                                             /* the tuner i2c address */
222            0,                                   /* dbx is optional */
223            0,
224              0,
225            0,                                   /* EEProm type */
226            0,                                   /* EEProm size */
227            { 0x0c, 0x08, 0x04, 0x00, 1 },         /* audio MUX values */
228              0x1f },                                        /* GPIO mask */
229 
230         {  CARD_OSPREY,                                     /* the card id */
231           "MMAC Osprey",                          /* the 'name' */
232            NULL,                                /* the tuner */
233              0,                                             /* the tuner i2c address */
234            0,                                   /* dbx is optional */
235              0,
236            0,
237              PFC8582_WADDR,                       /* EEProm type */
238              (u_char)(256 / EEPROMBLOCKSIZE),     /* 256 bytes */
239            { 0x00, 0x00, 0x00, 0x00, 0 },         /* audio MUX values */
240              0 },                                           /* GPIO mask */
241 
242         {  CARD_NEC_PK,                         /* the card id */
243           "NEC PK-UG-X017",                     /* the 'name' */
244            NULL,                                /* the tuner */
245            0,                                   /* the tuner i2c address */
246            0,                                   /* dbx is optional */
247              0,
248            0,
249            0,                                   /* EEProm type */
250            0,                                   /* EEProm size */
251            { 0x01, 0x02, 0x01, 0x00, 1 },         /* audio MUX values */
252              0x0f },                                        /* GPIO mask */
253 
254         {  CARD_IO_GV,                          /* the card id */
255           "I/O DATA GV-BCTV2/PCI",              /* the 'name' */
256            NULL,                                /* the tuner */
257            0,                                   /* the tuner i2c address */
258            0,                                   /* dbx is optional */
259            0,
260              0,
261            0,                                   /* EEProm type */
262            0,                                   /* EEProm size */
263            { 0x00, 0x00, 0x00, 0x00, 1 },         /* Has special MUX handler */
264              0x0f },                                        /* GPIO mask */
265 
266         {  CARD_FLYVIDEO,                         /* the card id */
267           "FlyVideo",                                       /* the 'name' */
268            NULL,                                  /* the tuner */
269            0,                                               /* the tuner i2c address */
270            0,                                               /* dbx is optional */
271            0,                                               /* msp34xx is optional */
272            0,                                               /* dpl3518a is optional */
273              0xac,                                /* EEProm type */
274              (u_char)(256 / EEPROMBLOCKSIZE),     /* 256 bytes */
275            { 0x000, 0x800, 0x400, 0x8dff00, 1 },/* audio MUX values */
276              0x8dff00 },                                    /* GPIO mask */
277 
278           {  CARD_ZOLTRIX,                        /* the card id */
279             "Zoltrix",                                      /* the 'name' */
280            NULL,                                  /* the tuner */
281            0,                                               /* the tuner i2c address */
282            0,                                               /* dbx is optional */
283            0,                                               /* msp34xx is optional */
284            0,                                               /* dpl3518a is optional */
285              0,                                             /* EEProm type */
286              0,                                             /* EEProm size */
287              { 0x04, 0x01, 0x00, 0x0a, 1 },       /* audio MUX values */
288              0x0f },                                        /* GPIO mask */
289 
290           {  CARD_KISS,                                     /* the card id */
291             "KISS TV/FM PCI",                     /* the 'name' */
292            NULL,                                  /* the tuner */
293            0,                                               /* the tuner i2c address */
294            0,                                               /* dbx is optional */
295            0,                                               /* msp34xx is optional */
296            0,                                               /* dpl3518a is optional */
297              0,                                             /* EEProm type */
298              0,                                             /* EEProm size */
299              { 0x0c, 0x00, 0x0b, 0x0b, 1 },       /* audio MUX values */
300              0x0f },                                        /* GPIO mask */
301 
302           {  CARD_VIDEO_HIGHWAY_XTREME,           /* the card id */
303             "Video Highway Xtreme",               /* the 'name' */
304            NULL,                                  /* the tuner */
305              0,
306              0,
307              0,
308              0,
309              0,                                             /* EEProm type */
310              0,                                             /* EEProm size */
311              { 0x00, 0x02, 0x01, 0x04, 1 },       /* audio MUX values */
312              0x0f },                                        /* GPIO mask */
313 
314           {  CARD_ASKEY_DYNALINK_MAGIC_TVIEW,     /* the card id */
315             "Askey/Dynalink Magic TView",                   /* the 'name' */
316              NULL,                                /* the tuner */
317              0,
318              0,
319              0,
320              0,
321              0,                                             /* EEProm type */
322              0,                                             /* EEProm size */
323              { 0x400, 0xE00, 0x400, 0xC00, 1 },   /* audio MUX values */
324              0xE00 },                                       /* GPIO mask */
325 
326           {  CARD_LEADTEK,                        /* the card id */
327             "Leadtek WinFast TV2000/VC100",       /* the 'name' */
328              NULL,                                /* the tuner */
329              0,
330              0,
331              0,
332              0,
333              0,                                             /* EEProm type */
334              0,                                             /* EEProm size */
335              /* Tuner, Extern, Intern, Mute, Enabled */
336              { 0x621000, 0x621000, 0x621000, 0xE21000, 1 }, /* audio MUX values */
337              0xfff000 },                                    /* GPIO mask */
338 
339         {  CARD_TERRATVPLUS,                    /* the card id */
340           "TerraTVplus",                        /* the 'name' */
341            NULL,                                /* the tuner */
342              0,
343              0,
344              0,
345              0,
346              0,                                             /* EEProm type */
347              0,                                             /* EEProm size */
348            { 0x20000, 0x00000, 0x30000, 0x40000, 1 }, /* audio MUX values*/
349            0x70000 },                           /* GPIO mask */
350 
351         {  CARD_TERRATVALUE,                    /* the card id */
352           "Terratec TValue",                    /* the 'name' */
353            NULL,                                /* the tuner */
354            0,
355            0,
356            0,
357            0,
358            0,                                   /* EEProm type */
359            0,                                   /* EEProm size */
360            { 0x500, 0x900, 0x300, 0x900, 1 },   /* audio MUX values*/
361            0xffff00 },                          /* GPIO mask */
362 
363 };
364 
365 struct bt848_card_sig bt848_card_signature[1]= {
366   /* IMS TURBO TV : card 5 */
367     {  5,9, {00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 02, 00, 00, 00}}
368 
369 
370 };
371 
372 
373 /*
374  * Write to the configuration EEPROM on the card.
375  * This is dangerous and will mess up your card. Therefore it is not
376  * implemented.
377  */
378 int
writeEEProm(bktr_ptr_t bktr,int offset,int count,u_char * data)379 writeEEProm(bktr_ptr_t bktr, int offset, int count,
380     u_char *data)
381 {
382         return(-1);
383 }
384 
385 /*
386  * Read the contents of the configuration EEPROM on the card.
387  * (This is not fitted to all makes of card. All Hauppauge cards have them
388  * and so do newer Bt878 based cards.
389  */
390 int
readEEProm(bktr_ptr_t bktr,int offset,int count,u_char * data)391 readEEProm(bktr_ptr_t bktr, int offset, int count, u_char *data)
392 {
393           int       x;
394           int       addr;
395           int       xmax;
396           int       byte;
397 
398           /* get the address of the EEProm */
399           addr = (int)(bktr->card.eepromAddr & 0xff);
400           if (addr == 0)
401                     return(-1);
402 
403           xmax = (int)(bktr->card.eepromSize * EEPROMBLOCKSIZE);
404           if ((offset + count) > xmax)
405                     return(-1);
406 
407           /* set the start address */
408           if (i2cWrite(bktr, addr, offset, -1) == -1)
409                     return(-1);
410 
411           /* the read cycle */
412           for (x = 0; x < count; ++x) {
413                     if ((byte = i2cRead(bktr, (addr | 1))) == -1)
414                               return(-1);
415                     data[x] = byte;
416           }
417 
418           return(0);
419 }
420 
421 
422 #define ABSENT                (-1)
423 
424 /*
425  * get a signature of the card
426  * read all 128 possible i2c read addresses from 0x01 thru 0xff
427  * build a bit array with a 1 bit for each i2c device that responds
428  *
429  * XXX FIXME: use offset & count args
430  */
431 int
signCard(bktr_ptr_t bktr,int offset,int count,u_char * sig)432 signCard(bktr_ptr_t bktr, int offset, int count, u_char* sig)
433 {
434           int       x;
435 
436           for (x = 0; x < 16; ++x)
437                     sig[x] = 0;
438 
439           for (x = 0; x < count; ++x) {
440                     if (i2cRead(bktr, (2 * x) + 1) != ABSENT) {
441                               sig[x / 8] |= (1 << (x % 8));
442                     }
443           }
444 
445           return(0);
446 }
447 
448 
449 /*
450  * check_for_i2c_devices.
451  * Some BT848 cards have no tuner and no additional i2c devices
452  * eg stereo decoder. These are used for video conferencing or capture from
453  * a video camera. (eg VideoLogic Captivator PCI, Intel SmartCapture card).
454  *
455  * Determine if there are any i2c devices present. There are none present if
456  *  a) reading from all 128 devices returns ABSENT (-1) for each one
457  *     (eg VideoLogic Captivator PCI with BT848)
458  *  b) reading from all 128 devices returns 0 for each one
459  *     (eg VideoLogic Captivator PCI rev. 2F with BT848A)
460  */
check_for_i2c_devices(bktr_ptr_t bktr)461 static int check_for_i2c_devices(bktr_ptr_t bktr) {
462   int x, temp_read;
463   int i2c_all_0 = 1;
464   int i2c_all_absent = 1;
465   for (x = 0; x < 128; ++x) {
466     temp_read = i2cRead(bktr, (2 * x) + 1);
467     if (temp_read != 0)      i2c_all_0 = 0;
468     if (temp_read != ABSENT) i2c_all_absent = 0;
469   }
470 
471   if ((i2c_all_0) || (i2c_all_absent)) return 0;
472   else return 1;
473 }
474 
475 
476 /*
477  * Temic/Philips datasheets say tuners can be at i2c addresses 0xc0, 0xc2,
478  * 0xc4 or 0xc6, settable by links on the tuner.
479  * Determine the actual address used on the TV card by probing read addresses.
480  */
locate_tuner_address(bktr_ptr_t bktr)481 static int locate_tuner_address(bktr_ptr_t bktr) {
482   if (i2cRead(bktr, 0xc1) != ABSENT) return 0xc0;
483   if (i2cRead(bktr, 0xc3) != ABSENT) return 0xc2;
484   if (i2cRead(bktr, 0xc5) != ABSENT) return 0xc4;
485   if (i2cRead(bktr, 0xc7) != ABSENT) return 0xc6;
486   return -1; /* no tuner found */
487 }
488 
489 
490 /*
491  * Search for a configuration EEPROM on the i2c bus by looking at i2c addresses
492  * where EEPROMs are usually found.
493  * On some cards, the EEPROM appears in several locations, but all in the
494  * range 0xa0 to 0xae.
495  */
locate_eeprom_address(bktr_ptr_t bktr)496 static int locate_eeprom_address(bktr_ptr_t bktr) {
497   if (i2cRead(bktr, 0xa0) != ABSENT) return 0xa0;
498   if (i2cRead(bktr, 0xac) != ABSENT) return 0xac;
499   if (i2cRead(bktr, 0xae) != ABSENT) return 0xae;
500   return -1; /* no eeprom found */
501 }
502 
503 
504 /*
505  * determine the card brand/model
506  * BKTR_OVERRIDE_CARD, BKTR_OVERRIDE_TUNER, BKTR_OVERRIDE_DBX and
507  * BKTR_OVERRIDE_MSP can be used to select a specific device,
508  * regardless of the autodetection and i2c device checks.
509  *
510  * The scheme used for probing cards faces these problems:
511  *  It is impossible to work out which type of tuner is actually fitted,
512  *  (the driver cannot tell if the Tuner is PAL or NTSC, Temic or Philips)
513  *  It is impossible to determine what audio-mux hardware is connected.
514  *  It is impossible to determine if there is extra hardware connected to the
515  *  GPIO pins  (eg radio chips or MSP34xx reset logic)
516  *
517  * However some makes of card (eg Hauppauge) come with a configuration eeprom
518  * which tells us the make of the card. Most eeproms also tell us the
519  * tuner type and other features of the cards.
520  *
521  * The current probe code works as follows
522  * A) If the card uses a Bt878/879:
523  *   1) Read the sub-system vendor id from the configuration EEPROM.
524  *      Select the required tuner, audio mux arrangement and any other
525  *      onboard features. If this fails, move to step B.
526  * B) If it card uses a Bt848, 848A, 849A or an unknown Bt878/879:
527  *   1) Look for I2C devices. If there are none fitted, it is an Intel or
528  *      VideoLogic cards.
529  *   2) Look for a configuration EEPROM.
530  *   2a) If there is one at I2C address 0xa0 it may be
531  *       a Hauppauge or an Osprey. Check the EEPROM contents to determine which
532  *       one it is. For Hauppauge, select the tuner type and audio hardware.
533  *   2b) If there is an EEPROM at I2C address 0xa8 it will be an STB card.
534  *       We still have to guess on the tuner type.
535  *
536  * C) If we do not know the card type from (A) or (B), guess at the tuner
537  *    type based on the I2C address of the tuner.
538  *
539  * D) After determining the Tuner Type, we probe the i2c bus for other
540  *    devices at known locations, eg IR-Remote Control, MSP34xx and TDA
541  *    stereo chips.
542  */
543 
544 
545 /*
546  * These are the sub-system vendor ID codes stored in the
547  * configuration EEPROM used on Bt878/879 cards. They should match the
548  * number assigned to the company by the PCI Special Interest Group
549  */
550 #ifndef __NetBSD__
551 #define PCI_VENDOR_HAUPPAUGE  0x0070
552 #define PCI_VENDOR_AVERMEDIA  0x1461
553 #define PCI_VENDOR_STB                  0x10B4
554 #define PCI_VENDOR_ASKEY      0x144F
555 #define PCI_VENDOR_TERRATEC   0x153B
556 #endif
557 /* Following not confirmed with http://www.pcidatabase.com/,
558    so not added to NetBSD's pcidevs */
559 #define PCI_VENDOR_LEADTEK_ALT          0x6606
560 #define PCI_VENDOR_LEADTEK_ALT_2        0x6607
561 #define PCI_VENDOR_LEADTEK_ALT_3        0x107D
562 #define PCI_VENDOR_FLYVIDEO   0x1851
563 #define PCI_VENDOR_FLYVIDEO_2 0x1852
564 #define PCI_VENDOR_PINNACLE_ALT         0xBD11
565 
566 #define MODEL_TERRATVALUE_1118          0x1118
567 #define MODEL_TERRATVALUE_1134          0x1134
568 
569 void
probeCard(bktr_ptr_t bktr,int verbose,int unit)570 probeCard(bktr_ptr_t bktr, int verbose, int unit)
571 {
572           int                 card, i,j, card_found;
573           int                 status;
574           u_char              probe_signature[128], *probe_temp;
575         int                   any_i2c_devices;
576           u_char              eeprom[256];
577           int                 tuner_i2c_address = -1;
578           int                 eeprom_i2c_address = -1;
579 
580           /* Select all GPIO bits as inputs */
581           OUTL(bktr, BKTR_GPIO_OUT_EN, 0);
582           if (bootverbose)
583               printf("%s: GPIO is 0x%08x\n", bktr_name(bktr),
584                        INL(bktr, BKTR_GPIO_DATA));
585 
586 #ifdef HAUPPAUGE_MSP_RESET
587           /* Reset the MSP34xx audio chip. This resolves bootup card
588            * detection problems with old Bt848 based Hauppauge cards with
589            * MSP34xx stereo audio chips. This must be user enabled because
590            * at this point the probe function does not know the card type. */
591         OUTL(bktr, BKTR_GPIO_OUT_EN, INL(bktr, BKTR_GPIO_OUT_EN) | (1<<5));
592         OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
593         DELAY(2500); /* wait 2.5ms */
594         OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) & ~(1<<5)); /* write '0' */
595         DELAY(2500); /* wait 2.5ms */
596         OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
597         DELAY(2500); /* wait 2.5ms */
598 #endif
599 
600           /* Check for the presence of i2c devices */
601         any_i2c_devices = check_for_i2c_devices(bktr);
602 
603 
604           /* Check for a user specified override on the card selection */
605 #if defined(BKTR_OVERRIDE_CARD)
606           bktr->card = cards[(card = BKTR_OVERRIDE_CARD)];
607           goto checkEEPROM;
608 #endif
609           if (bktr->bt848_card != -1) {
610             bktr->card = cards[(card = bktr->bt848_card)];
611             goto checkEEPROM;
612           }
613 
614 
615           /* No override, so try and determine the make of the card */
616 
617         /* On BT878/879 cards, read the sub-system vendor id */
618           /* This identifies the manufacturer of the card and the model */
619           /* In theory this can be read from PCI registers but this does not */
620           /* appear to work on the FlyVideo 98. Hauppauge also warned that */
621           /* the PCI registers are sometimes not loaded correctly. */
622           /* Therefore, I will read the sub-system vendor ID from the EEPROM */
623           /* (just like the Bt878 does during power up initialisation) */
624 
625         if ((bktr->id==BROOKTREE_878) || (bktr->id==BROOKTREE_879)) {
626               /* Try and locate the EEPROM */
627               eeprom_i2c_address = locate_eeprom_address(bktr);
628               if (eeprom_i2c_address != -1) {
629 
630                 unsigned int subsystem_vendor_id; /* vendors PCI-SIG ID */
631                 unsigned int subsystem_id;        /* board model number */
632                     unsigned int byte_252, byte_253, byte_254, byte_255;
633 
634                     bktr->card = cards[(card = CARD_UNKNOWN)];
635                     bktr->card.eepromAddr = eeprom_i2c_address;
636                     bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
637 
638                   if(readEEProm(bktr, 0, 256, (u_char *) &eeprom))
639                         printf("%s: error reading EEPROM\n", bktr_name(bktr));
640 
641                 byte_252 = (unsigned int)eeprom[252];
642                 byte_253 = (unsigned int)eeprom[253];
643                 byte_254 = (unsigned int)eeprom[254];
644                 byte_255 = (unsigned int)eeprom[255];
645 
646                 subsystem_id        = (byte_252 << 8) | byte_253;
647                 subsystem_vendor_id = (byte_254 << 8) | byte_255;
648 
649                   if (bootverbose)
650                       printf("%s: subsystem 0x%04x 0x%04x\n", bktr_name(bktr),
651                                  subsystem_vendor_id, subsystem_id);
652 
653                 if (subsystem_vendor_id == PCI_VENDOR_AVERMEDIA) {
654                     bktr->card = cards[(card = CARD_AVER_MEDIA)];
655                         bktr->card.eepromAddr = eeprom_i2c_address;
656                         bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
657                     goto checkTuner;
658                 }
659 
660                 if (subsystem_vendor_id == PCI_VENDOR_HAUPPAUGE) {
661                     bktr->card = cards[(card = CARD_HAUPPAUGE)];
662                         bktr->card.eepromAddr = eeprom_i2c_address;
663                         bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
664                     goto checkTuner;
665                 }
666 
667                 if ((subsystem_vendor_id == PCI_VENDOR_FLYVIDEO)
668                  || (subsystem_vendor_id == PCI_VENDOR_FLYVIDEO_2)) {
669                     bktr->card = cards[(card = CARD_FLYVIDEO)];
670                         bktr->card.eepromAddr = eeprom_i2c_address;
671                         bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
672                     goto checkTuner;
673                 }
674 
675                 if (subsystem_vendor_id == PCI_VENDOR_STB) {
676                     bktr->card = cards[(card = CARD_STB)];
677                         bktr->card.eepromAddr = eeprom_i2c_address;
678                         bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
679                     goto checkTuner;
680                 }
681 
682                 if (subsystem_vendor_id == PCI_VENDOR_ASKEY) {
683                     bktr->card = cards[(card = CARD_ASKEY_DYNALINK_MAGIC_TVIEW)];
684                         bktr->card.eepromAddr = eeprom_i2c_address;
685                         bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
686                     goto checkTuner;
687                 }
688 
689                 if ((subsystem_vendor_id == PCI_VENDOR_LEADTEK)
690                  || (subsystem_vendor_id == PCI_VENDOR_LEADTEK_ALT)
691                  || (subsystem_vendor_id == PCI_VENDOR_LEADTEK_ALT_2)
692                  || (subsystem_vendor_id == PCI_VENDOR_LEADTEK_ALT_3)) {
693                     bktr->card = cards[(card = CARD_LEADTEK)];
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_PINNACLE_ALT) {
700                     bktr->card = cards[(card = CARD_MIRO)];
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_TERRATEC
707                         && (subsystem_id == MODEL_TERRATVALUE_1118
708                             || subsystem_id == MODEL_TERRATVALUE_1134)) {
709                         bktr->card = cards[(card = CARD_TERRATVALUE)];
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_TERRATEC) {
716                         bktr->card = cards[(card = CARD_TERRATVPLUS)];
717                         bktr->card.eepromAddr = eeprom_i2c_address;
718                         bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
719                         goto checkTuner;
720                     }
721 
722                 /* Vendor is unknown. We will use the standard probe code */
723                     /* which may not give best results */
724                 printf("%s: Warning - card vendor 0x%04x (model 0x%04x) unknown.\n",
725                            bktr_name(bktr), subsystem_vendor_id, subsystem_id);
726             }
727               else
728               {
729                 printf("%s: Card has no configuration EEPROM. Cannot determine card make.\n",
730                            bktr_name(bktr));
731               }
732           } /* end of bt878/bt879 card detection code */
733 
734           /* If we get to this point, we must have a Bt848/848A/849A card */
735           /* or a Bt878/879 with an unknown subsystem vendor id */
736         /* Try and determine the make of card by clever i2c probing */
737 
738           /* Check for i2c devices. If none, move on */
739           if (!any_i2c_devices) {
740                     bktr->card = cards[(card = CARD_INTEL)];
741                     bktr->card.eepromAddr = 0;
742                     bktr->card.eepromSize = 0;
743                     goto checkTuner;
744           }
745 
746         /* Look for Hauppauge, STB and Osprey cards by the presence */
747           /* of an EEPROM */
748         /* Note: Bt878 based cards also use EEPROMs so we can only do this */
749         /* test on BT848/848A and 849A based cards. */
750           if ((bktr->id==BROOKTREE_848)  ||
751               (bktr->id==BROOKTREE_848A) ||
752               (bktr->id==BROOKTREE_849A)) {
753 
754             /* At i2c address 0xa0, look for Hauppauge and Osprey cards */
755             if ((status = i2cRead(bktr, PFC8582_RADDR)) != ABSENT) {
756 
757                         /* Read the eeprom contents */
758                         bktr->card = cards[(card = CARD_UNKNOWN)];
759                         bktr->card.eepromAddr = PFC8582_WADDR;
760                         bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
761                       readEEProm(bktr, 0, 128, (u_char *) &eeprom);
762 
763                         /* For Hauppauge, check the EEPROM begins with 0x84 */
764                         if (eeprom[0] == 0x84) {
765                             bktr->card = cards[(card = CARD_HAUPPAUGE)];
766                                   bktr->card.eepromAddr = PFC8582_WADDR;
767                                   bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
768                             goto checkTuner;
769                         }
770 
771                         /* For Osprey, check the EEPROM begins with "MMAC" */
772                         if ((eeprom[0] == 'M') &&(eeprom[1] == 'M')
773                               &&(eeprom[2] == 'A') &&(eeprom[3] == 'C')) {
774                             bktr->card = cards[(card = CARD_OSPREY)];
775                                   bktr->card.eepromAddr = PFC8582_WADDR;
776                                   bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
777                             goto checkTuner;
778                         }
779                         printf("%s: Warning: Unknown card type. EEPROM data not recognised\n",
780                                  bktr_name(bktr));
781                         printf("%s: %x %x %x %x\n", bktr_name(bktr),
782                                  eeprom[0],eeprom[1],eeprom[2],eeprom[3]);
783             }
784 
785             /* look for an STB card */
786             if ((status = i2cRead(bktr, X24C01_RADDR)) != ABSENT) {
787                     bktr->card = cards[(card = CARD_STB)];
788                         bktr->card.eepromAddr = X24C01_WADDR;
789                         bktr->card.eepromSize = (u_char)(128 / EEPROMBLOCKSIZE);
790                     goto checkTuner;
791             }
792 
793           }
794 
795           signCard(bktr, 1, 128, (u_char *)  &probe_signature);
796 
797           if (bootverbose) {
798             printf("%s: card signature: ", bktr_name(bktr));
799             for (j = 0; j < Bt848_MAX_SIGN; j++) {
800               printf(" %02x ", probe_signature[j]);
801             }
802             printf("\n\n");
803           }
804           for (i = 0;
805                i < (sizeof bt848_card_signature)/ sizeof (struct bt848_card_sig);
806                i++) {
807 
808             card_found = 1;
809             probe_temp = (u_char *) &bt848_card_signature[i].signature;
810 
811             for (j = 0; j < Bt848_MAX_SIGN; j++) {
812               if ((probe_temp[j] & 0xf) != (probe_signature[j] & 0xf)) {
813                 card_found = 0;
814                 break;
815               }
816 
817             }
818             if (card_found) {
819               bktr->card = cards[card = bt848_card_signature[i].card];
820               eeprom_i2c_address = locate_eeprom_address(bktr);
821               if (eeprom_i2c_address != -1) {
822                     bktr->card.eepromAddr = eeprom_i2c_address;
823                     bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
824               } else {
825                     bktr->card.eepromAddr = 0;
826                     bktr->card.eepromSize = 0;
827               }
828               tuner_i2c_address = locate_tuner_address(bktr);
829               select_tuner(bktr, bt848_card_signature[i].tuner);
830               goto checkDBX;
831             }
832           }
833 
834           /* We do not know the card type. Default to Miro */
835           bktr->card = cards[(card = CARD_MIRO)];
836 
837 
838 checkEEPROM:
839           /* look for a configuration eeprom */
840           eeprom_i2c_address = locate_eeprom_address(bktr);
841           if (eeprom_i2c_address != -1) {
842               bktr->card.eepromAddr = eeprom_i2c_address;
843               bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
844           } else {
845               bktr->card.eepromAddr = 0;
846               bktr->card.eepromSize = 0;
847           }
848 
849 
850 checkTuner:
851 
852           /* look for a tuner */
853           tuner_i2c_address = locate_tuner_address(bktr);
854           if (tuner_i2c_address == -1) {
855                     select_tuner(bktr, NO_TUNER);
856                     goto checkDBX;
857           }
858 
859 #if defined(BKTR_OVERRIDE_TUNER)
860           select_tuner(bktr, BKTR_OVERRIDE_TUNER);
861           goto checkDBX;
862 #endif
863           if (bktr->bt848_tuner != -1) {
864             select_tuner(bktr, bktr->bt848_tuner & 0xff);
865             goto checkDBX;
866           }
867 
868           /* Check for i2c devices */
869           if (!any_i2c_devices) {
870                     select_tuner(bktr, NO_TUNER);
871                     goto checkDBX;
872           }
873 
874           /* differentiate type of tuner */
875 
876           switch (card) {
877           case CARD_MIRO:
878               switch (((INL(bktr, BKTR_GPIO_DATA) >> 10)-1)&7) {
879               case 0: select_tuner(bktr, TEMIC_PAL); break;
880               case 1: select_tuner(bktr, PHILIPS_PAL); break;
881               case 2: select_tuner(bktr, PHILIPS_NTSC); break;
882               case 3: select_tuner(bktr, PHILIPS_SECAM); break;
883               case 4: select_tuner(bktr, NO_TUNER); break;
884               case 5: select_tuner(bktr, PHILIPS_PALI); break;
885               case 6: select_tuner(bktr, TEMIC_NTSC); break;
886               case 7: select_tuner(bktr, TEMIC_PALI); break;
887               }
888               goto checkDBX;
889               break;
890 
891           case CARD_HAUPPAUGE:
892               /* Hauppauge kindly supplied the following Tuner Table */
893               /* FIXME: I think the tuners the driver selects for types */
894               /* 0x08 and 0x15 may be incorrect but no one has complained. */
895               /* Old Temic tuners had their own API, but newer Temic tuners */
896               /* have the same API as Philips tuners */
897               /*
898   ID  Tuner Model           Format                          We select Format
899  0x00 NONE
900  0x01 EXTERNAL
901  0x02 OTHER
902  0x03 Philips FI1216        BG
903  0x04 Philips FI1216MF      BGLL'                           PHILIPS_SECAM
904  0x05 Philips FI1236        MN                                        PHILIPS_NTSC
905  0x06 Philips FI1246        I                                         PHILIPS_PALI
906  0x07 Philips FI1256        DK
907  0x08 Philips FI1216 MK2    BG                                        PHILIPS_PALI
908  0x09 Philips FI1216MF MK2  BGLL'                           PHILIPS_SECAM
909  0x0a Philips FI1236 MK2    MN                                        PHILIPS_NTSC
910  0x0b Philips FI1246 MK2    I                                         PHILIPS_PALI
911  0x0c Philips FI1256 MK2    DK
912  0x0d Temic 4032FY5         NTSC                            TEMIC_NTSC
913  0x0e Temic 4002FH5         BG                                        TEMIC_PAL
914  0x0f Temic 4062FY5         I                                         TEMIC_PALI
915  0x10 Philips FR1216 MK2    BG
916  0x11 Philips FR1216MF MK2  BGLL'                           PHILIPS_FR1236_SECAM
917  0x12 Philips FR1236 MK2    MN                                        PHILIPS_FR1236_NTSC
918  0x13 Philips FR1246 MK2    I
919  0x14 Philips FR1256 MK2    DK
920  0x15 Philips FM1216        BG                                        PHILIPS_FR1216_PAL
921  0x16 Philips FM1216MF      BGLL'                           PHILIPS_FR1236_SECAM
922  0x17 Philips FM1236        MN                                        PHILIPS_FR1236_NTSC
923  0x18 Philips FM1246        I
924  0x19 Philips FM1256        DK
925  0x1a Temic 4036FY5         MN (FI1236 MK2 clone) PHILIPS_NTSC
926  0x1b Samsung TCPN9082D     MN
927  0x1c Samsung TCPM9092P     Pal BG/I/DK
928  0x1d Temic 4006FH5         BG                                        PHILIPS_PALI
929  0x1e Samsung TCPN9085D     MN/Radio
930  0x1f Samsung TCPB9085P     Pal BG/I/DK / Radio
931  0x20 Samsung TCPL9091P     Pal BG & Secam L/L'
932  0x21 Temic 4039FY5         NTSC Radio
933  0x22 Philips FQ1216ME      Pal BGIDK & Secam L/L'
934  0x23 Temic 4066FY5         Pal I (FI1246 MK2 clone)        PHILIPS_PALI
935  0x24 Philips TD1536        MN/ATSCDigital
936  0x25 Philips TD1536D       MN/ATSCDigital DUAL INPUT
937  0x26 Philips FMR1236       M/N FM(no demod)
938  0x27 Philips FI1256MP      B/G, D/K
939  0x28 Samsung TCPQ9091P     BG/I/DK, L/L'
940  0x29 Temic 4006FN5         BG/I/DK
941  0x2a Temic 4009FR5         BG FM                           PHILIPS_FR1216_PAL
942  0x2b Temic 4046FM5         B/G, I, D/K, L/L'
943  0x2c Temic 4009FN5         B/G, I, D/K, FM (no demod)
944  0x2d Philips TD1536D_FH_44 MN/ATSCDigital DUAL INPUT
945               */
946 
947 
948               /* Determine the model number from the eeprom */
949               if (bktr->card.eepromAddr != 0) {
950                   /* eeprom data block structure */
951                   unsigned char *block_1, *block_2, *block_3;
952                   int block_1_data_size,  block_2_data_size;
953                   int block_1_total_size, block_2_total_size;
954 
955                     unsigned int model,revision;
956                     unsigned char tuner_code;
957                     unsigned char no_audio_mux;
958 
959                     readEEProm(bktr, 0, 128, (u_char *) &eeprom);
960 
961                   /* LOCATE THE EEPROM DATA BLOCKS */
962                   block_1 = &eeprom[0];
963                   block_1_data_size = (block_1[2] << 8 | block_1[1]);
964                   block_1_total_size = block_1_data_size + 3; /* Header bytes */
965 
966                   block_2 = &eeprom[block_1_total_size];
967                   block_2_data_size = (block_2[2] << 8 | block_2[1]);
968                   block_2_total_size = block_2_data_size + 3; /* Header bytes */
969 
970                   block_3 = &eeprom[block_1_total_size + block_2_total_size];
971 
972                     model    = (block_1[12] << 8  | block_1[11]);
973                     revision = (block_1[15] << 16 | block_1[14] << 8 | block_1[13]);
974 
975                     tuner_code = block_1[9];
976 
977                     no_audio_mux = ((block_3[3] >> 7) &0x01);
978 
979                     if (no_audio_mux) bktr->audio_mux_present = 0;
980 
981                     if (verbose)
982                         printf("%s: Hauppauge Model %d %c%c%c%c\n",
983                                  bktr_name(bktr),
984                                  model,
985                                  ((revision >> 18) & 0x3f) + 32,
986                                  ((revision >> 12) & 0x3f) + 32,
987                                  ((revision >>  6) & 0x3f) + 32,
988                                  ((revision >>  0) & 0x3f) + 32);
989 
990                   /* Determine the tuner type from the eeprom */
991 
992                     switch (tuner_code) {
993 
994                       case 0x5:
995                   case 0x0a:
996                   case 0x1a:
997                         select_tuner(bktr, PHILIPS_NTSC);
998                         goto checkDBX;
999 
1000                       case 0x4:
1001                   case 0x9:
1002                         select_tuner(bktr, PHILIPS_SECAM);
1003                         goto checkDBX;
1004 
1005                   case 0x11:
1006                     case 0x16:
1007                         select_tuner(bktr, PHILIPS_FR1236_SECAM);
1008                         goto checkDBX;
1009 
1010                   case 0x12:
1011                     case 0x17:
1012                     case 0x21: /* Hauppauge WinTV-GO-FM (model 00191) */
1013                         select_tuner(bktr, PHILIPS_FR1236_NTSC);
1014                         goto checkDBX;
1015 
1016                       case 0x6:
1017                     case 0x8:
1018                     case 0xb:
1019                     case 0x1d:
1020                     case 0x23:
1021                         select_tuner(bktr, PHILIPS_PALI);
1022                         goto checkDBX;
1023 
1024                     case 0xd:
1025                         select_tuner(bktr, TEMIC_NTSC);
1026                         goto checkDBX;
1027 
1028                   case 0xe:
1029                         select_tuner(bktr, TEMIC_PAL);
1030                         goto checkDBX;
1031 
1032                     case 0xf:
1033                         select_tuner(bktr, TEMIC_PALI);
1034                         goto checkDBX;
1035 
1036                   case 0x15:
1037                         select_tuner(bktr, PHILIPS_FR1216_PAL);
1038                         goto checkDBX;
1039 
1040                   case 0x2a:
1041                         bktr->msp_use_mono_source = 1;
1042                         select_tuner(bktr, PHILIPS_FR1216_PAL);
1043                         goto checkDBX;
1044 
1045                     default :
1046                         printf("%s: Warning - Unknown Hauppauge Tuner 0x%x\n",
1047                                  bktr_name(bktr), tuner_code);
1048                     }
1049               }
1050               break;
1051 
1052 
1053           case CARD_AVER_MEDIA:
1054               /* AVerMedia kindly supplied some details of their EEPROM contents
1055                * which allow us to auto select the Tuner Type.
1056                * Only the newer AVerMedia cards actually have an EEPROM.
1057                */
1058               if (bktr->card.eepromAddr != 0) {
1059 
1060                     u_char tuner_make;   /* Eg Philips, Temic */
1061                     u_char tuner_tv_fm;  /* TV or TV with FM Radio */
1062                     u_char tuner_format; /* Eg NTSC, PAL, SECAM */
1063                     int    tuner;
1064 
1065                     int tuner_0_table[] = {
1066                               PHILIPS_NTSC,  PHILIPS_PAL,
1067                               PHILIPS_PAL,   PHILIPS_PAL,
1068                               PHILIPS_PAL,   PHILIPS_PAL,
1069                               PHILIPS_SECAM, PHILIPS_SECAM,
1070                               PHILIPS_SECAM, PHILIPS_PAL};
1071 
1072                     int tuner_0_fm_table[] = {
1073                               PHILIPS_FR1236_NTSC,  PHILIPS_FR1216_PAL,
1074                               PHILIPS_FR1216_PAL,   PHILIPS_FR1216_PAL,
1075                               PHILIPS_FR1216_PAL,   PHILIPS_FR1216_PAL,
1076                               PHILIPS_FR1236_SECAM, PHILIPS_FR1236_SECAM,
1077                               PHILIPS_FR1236_SECAM, PHILIPS_FR1216_PAL};
1078 
1079                     int tuner_1_table[] = {
1080                               TEMIC_NTSC,  TEMIC_PAL,   TEMIC_PAL,
1081                               TEMIC_PAL,   TEMIC_PAL,   TEMIC_PAL,
1082                               TEMIC_SECAM, TEMIC_SECAM, TEMIC_SECAM,
1083                               TEMIC_PAL};
1084 
1085 
1086                     /* Extract information from the EEPROM data */
1087                     readEEProm(bktr, 0, 128, (u_char *) &eeprom);
1088 
1089                     tuner_make   = (eeprom[0x41] & 0x7);
1090                     tuner_tv_fm  = (eeprom[0x41] & 0x18) >> 3;
1091                     tuner_format = (eeprom[0x42] & 0xf0) >> 4;
1092 
1093                     /* Treat tuner make 0 (Philips) and make 2 (LG) the same */
1094                     if (((tuner_make == 0) || (tuner_make == 2))
1095                         && (tuner_format <= 9) && (tuner_tv_fm == 0)) {
1096                               tuner = tuner_0_table[tuner_format];
1097                               select_tuner(bktr, tuner);
1098                               goto checkDBX;
1099                     }
1100 
1101                     if (((tuner_make == 0) || (tuner_make == 2))
1102                         && (tuner_format <= 9) && (tuner_tv_fm == 1)) {
1103                               tuner = tuner_0_fm_table[tuner_format];
1104                               select_tuner(bktr, tuner);
1105                               goto checkDBX;
1106                     }
1107 
1108                     if ((tuner_make == 1) && (tuner_format <= 9)) {
1109                               tuner = tuner_1_table[tuner_format];
1110                               select_tuner(bktr, tuner);
1111                               goto checkDBX;
1112                     }
1113 
1114                     printf("%s: Warning - Unknown AVerMedia Tuner Make %d Format %d\n",
1115                               bktr_name(bktr), tuner_make, tuner_format);
1116               }
1117               break;
1118 
1119           case CARD_LEADTEK:
1120 #if BKTR_SYSTEM_DEFAULT == BROOKTREE_PAL
1121               select_tuner(bktr, PHILIPS_FR1216_PAL);
1122 #else
1123               select_tuner(bktr, PHILIPS_FR1236_NTSC);
1124 #endif
1125             goto checkDBX;
1126               break;
1127 
1128           case CARD_TERRATVALUE:
1129             select_tuner(bktr, PHILIPS_PAL);
1130             goto checkDBX;
1131             break;
1132 
1133           } /* end switch(card) */
1134 
1135 
1136         /* At this point, a goto checkDBX has not occurred */
1137         /* We have not been able to select a Tuner */
1138         /* Some cards make use of the tuner address to */
1139         /* identify the make/model of tuner */
1140 
1141         /* At address 0xc0/0xc1 we often find a TEMIC NTSC */
1142         if (i2cRead(bktr, 0xc1) != ABSENT) {
1143               select_tuner(bktr, TEMIC_NTSC);
1144             goto checkDBX;
1145         }
1146 
1147         /* At address 0xc6/0xc7 we often find a PHILIPS NTSC Tuner */
1148         if (i2cRead(bktr, 0xc7) != ABSENT) {
1149               select_tuner(bktr, PHILIPS_NTSC);
1150             goto checkDBX;
1151         }
1152 
1153         /* Address 0xc2/0xc3 is default (or common address) for several */
1154           /* tuners and we cannot tell which is which. */
1155           /* And for all other tuner i2c addresses, select the default */
1156           select_tuner(bktr, DEFAULT_TUNER);
1157 
1158 
1159 checkDBX:
1160 #if defined(BKTR_OVERRIDE_DBX)
1161           bktr->card.dbx = BKTR_OVERRIDE_DBX;
1162           goto checkMSP;
1163 #endif
1164    /* Check for i2c devices */
1165           if (!any_i2c_devices) {
1166                     goto checkMSP;
1167           }
1168 
1169           /* probe for BTSC (dbx) chip */
1170           if (i2cRead(bktr, TDA9850_RADDR) != ABSENT)
1171                     bktr->card.dbx = 1;
1172 
1173 checkMSP:
1174           /* If this is a Hauppauge Bt878 card, we need to enable the
1175            * MSP 34xx audio chip.
1176            * If this is a Hauppauge Bt848 card, reset the MSP device.
1177            * The MSP reset line is wired to GPIO pin 5. On Bt878 cards a pulldown
1178            * resistor holds the device in reset until we set GPIO pin 5.
1179          */
1180 
1181           /* Optionally skip the MSP reset. This is handy if you initialise the
1182            * MSP audio in another operating system (eg Windows) first and then
1183            * do a soft reboot.
1184            */
1185 
1186 #ifndef BKTR_NO_MSP_RESET
1187           if (card == CARD_HAUPPAUGE) {
1188             OUTL(bktr, BKTR_GPIO_OUT_EN, INL(bktr, BKTR_GPIO_OUT_EN) | (1<<5));
1189             OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
1190             DELAY(2500); /* wait 2.5ms */
1191             OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) & ~(1<<5)); /* write '0' */
1192             DELAY(2500); /* wait 2.5ms */
1193             OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
1194             DELAY(2500); /* wait 2.5ms */
1195         }
1196 #endif
1197 
1198 #if defined(BKTR_OVERRIDE_MSP)
1199           bktr->card.msp3400c = BKTR_OVERRIDE_MSP;
1200           goto checkMSPEnd;
1201 #endif
1202 
1203           /* Check for i2c devices */
1204           if (!any_i2c_devices) {
1205                     goto checkMSPEnd;
1206           }
1207 
1208           if (i2cRead(bktr, MSP3400C_RADDR) != ABSENT) {
1209                     bktr->card.msp3400c = 1;
1210           }
1211 
1212 checkMSPEnd:
1213 
1214           if (bktr->card.msp3400c) {
1215                     bktr->msp_addr = MSP3400C_WADDR;
1216                     msp_read_id(bktr);
1217                     printf("%s: Detected a MSP%s at 0x%x\n", bktr_name(bktr),
1218                            bktr->msp_version_string,
1219                            bktr->msp_addr);
1220 
1221           }
1222 
1223 /* Check for Dolby Surround Sound DPL3518A sound chip */
1224           if (i2cRead(bktr, DPL3518A_RADDR) != ABSENT) {
1225                     bktr->card.dpl3518a = 1;
1226           }
1227 
1228           if (bktr->card.dpl3518a) {
1229                     bktr->dpl_addr = DPL3518A_WADDR;
1230                     dpl_read_id(bktr);
1231                     printf("%s: Detected a DPL%s at 0x%x\n", bktr_name(bktr),
1232                            bktr->dpl_version_string,
1233                            bktr->dpl_addr);
1234           }
1235 
1236 /* Start of Check Remote */
1237         /* Check for the Hauppauge IR Remote Control */
1238         /* If there is an external unit, the internal will be ignored */
1239 
1240         bktr->remote_control = 0; /* initial value */
1241 
1242         if (any_i2c_devices) {
1243             if (i2cRead(bktr, HAUP_REMOTE_EXT_RADDR) != ABSENT)
1244                 {
1245                 bktr->remote_control      = 1;
1246                 bktr->remote_control_addr = HAUP_REMOTE_EXT_RADDR;
1247                 }
1248             else if (i2cRead(bktr, HAUP_REMOTE_INT_RADDR) != ABSENT)
1249                 {
1250                 bktr->remote_control      = 1;
1251                 bktr->remote_control_addr = HAUP_REMOTE_INT_RADDR;
1252                 }
1253 
1254         }
1255         /* If a remote control is found, poll it 5 times to turn off the LED */
1256         if (bktr->remote_control) {
1257                 int ii;
1258                 for (ii=0; ii<5; ii++)
1259                         i2cRead(bktr, bktr->remote_control_addr);
1260         }
1261 /* End of Check Remote */
1262 
1263 #if defined(BKTR_USE_PLL)
1264           bktr->xtal_pll_mode = BT848_USE_PLL;
1265           goto checkPLLEnd;
1266 #endif
1267           /* Default is to use XTALS and not PLL mode */
1268           bktr->xtal_pll_mode = BT848_USE_XTALS;
1269 
1270           /* Enable PLL mode for OSPREY users */
1271           if (card == CARD_OSPREY)
1272                     bktr->xtal_pll_mode = BT848_USE_PLL;
1273 
1274           /* Enable PLL mode for Video Highway Xtreme users */
1275           if (card == CARD_VIDEO_HIGHWAY_XTREME)
1276                     bktr->xtal_pll_mode = BT848_USE_PLL;
1277 
1278 
1279           /* Most (perhaps all) Bt878 cards need to be switched to PLL mode */
1280           /* as they only fit the NTSC crystal to their cards */
1281           /* Default to enabling PLL mode for all Bt878/879 cards */
1282 
1283           if ((bktr->id==BROOKTREE_878 || bktr->id==BROOKTREE_879))
1284                     bktr->xtal_pll_mode = BT848_USE_PLL;
1285 
1286 
1287 #if defined(BKTR_USE_PLL)
1288 checkPLLEnd:
1289 #endif
1290 
1291 
1292           bktr->card.tuner_pllAddr = tuner_i2c_address;
1293 
1294           if (verbose) {
1295                     printf("%s: %s", bktr_name(bktr), bktr->card.name);
1296                     if (bktr->card.tuner)
1297                               printf(", %s tuner", bktr->card.tuner->name);
1298                     if (bktr->card.dbx)
1299                               printf(", dbx stereo");
1300                     if (bktr->card.msp3400c)
1301                               printf(", msp3400c stereo");
1302                     if (bktr->card.dpl3518a)
1303                               printf(", dpl3518a dolby");
1304                 if (bktr->remote_control)
1305                         printf(", remote control");
1306                     printf(".\n");
1307           }
1308 }
1309 
1310 #undef ABSENT
1311