The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/bktr/bktr_card.c

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    1 /*-
    2  * 1. Redistributions of source code must retain the
    3  * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  * 3. All advertising materials mentioning features or use of this software
   15  *    must display the following acknowledgement:
   16  *      This product includes software developed by Amancio Hasty and
   17  *      Roger Hardiman
   18  * 4. The name of the author may not be used to endorse or promote products
   19  *    derived from this software without specific prior written permission.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   23  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   24  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
   25  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   26  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   27  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   29  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   30  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   31  * POSSIBILITY OF SUCH DAMAGE.
   32  */
   33 
   34 #include <sys/cdefs.h>
   35 __FBSDID("$FreeBSD$");
   36 
   37 /*
   38  * This is part of the Driver for Video Capture Cards (Frame grabbers)
   39  * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
   40  * chipset.
   41  * Copyright Roger Hardiman and Amancio Hasty.
   42  *
   43  * bktr_card : This deals with identifying TV cards.
   44  *               trying to find the card make and model of card.
   45  *               trying to find the type of tuner fitted.
   46  *               reading the configuration EEPROM.
   47  *               locating i2c devices.
   48  */
   49 
   50 #include "opt_bktr.h"           /* Include any kernel config options */
   51 
   52 #include <sys/param.h>
   53 #include <sys/systm.h>
   54 
   55 #ifdef __FreeBSD__
   56 
   57 #if (__FreeBSD_version < 500000)
   58 #include <machine/clock.h>              /* for DELAY */
   59 #include <pci/pcivar.h>
   60 #else
   61 #include <sys/lock.h>
   62 #include <sys/mutex.h>
   63 #include <sys/selinfo.h>
   64 #include <dev/pci/pcivar.h>
   65 #endif
   66 
   67 #include <machine/bus.h>
   68 #include <sys/bus.h>
   69 #endif
   70 
   71 #ifdef __NetBSD__
   72 #include <dev/ic/bt8xx.h>       /* NetBSD location for .h files */
   73 #include <dev/pci/bktr/bktr_reg.h>
   74 #include <dev/pci/bktr/bktr_core.h>
   75 #include <dev/pci/bktr/bktr_tuner.h>
   76 #include <dev/pci/bktr/bktr_card.h>
   77 #include <dev/pci/bktr/bktr_audio.h>
   78 #else
   79 #include <dev/bktr/ioctl_meteor.h>
   80 #include <dev/bktr/ioctl_bt848.h>       /* extensions to ioctl_meteor.h */
   81 #include <dev/bktr/bktr_reg.h>
   82 #include <dev/bktr/bktr_core.h>
   83 #include <dev/bktr/bktr_tuner.h>
   84 #include <dev/bktr/bktr_card.h>
   85 #include <dev/bktr/bktr_audio.h>
   86 #endif
   87 
   88 /* Include the PCI Vendor definitions */
   89 #ifdef __NetBSD__
   90 #include <dev/pci/pcidevs.h>
   91 #include <dev/pci/pcireg.h>
   92 #endif
   93 
   94 /* Various defines */
   95 #define HAUP_REMOTE_INT_WADDR   0x30
   96 #define HAUP_REMOTE_INT_RADDR   0x31
   97  
   98 #define HAUP_REMOTE_EXT_WADDR   0x34
   99 #define HAUP_REMOTE_EXT_RADDR   0x35
  100 
  101 /* address of BTSC/SAP decoder chip */
  102 #define TDA9850_WADDR           0xb6 
  103 #define TDA9850_RADDR           0xb7
  104  
  105 /* address of MSP3400C chip */
  106 #define MSP3400C_WADDR          0x80
  107 #define MSP3400C_RADDR          0x81
  108  
  109 /* address of DPL3518A chip */
  110 #define DPL3518A_WADDR          0x84
  111 #define DPL3518A_RADDR          0x85
  112  
  113 /* EEProm (128 * 8) on an STB card */
  114 #define X24C01_WADDR            0xae
  115 #define X24C01_RADDR            0xaf
  116  
  117  
  118 /* EEProm (256 * 8) on a Hauppauge card */
  119 /* and on most BT878s cards to store the sub-system vendor id */
  120 #define PFC8582_WADDR           0xa0
  121 #define PFC8582_RADDR           0xa1
  122 
  123 #if defined(BKTR_SYSTEM_DEFAULT) && BKTR_SYSTEM_DEFAULT == BROOKTREE_PAL
  124 #define DEFAULT_TUNER   PHILIPS_PALI
  125 #else
  126 #define DEFAULT_TUNER   PHILIPS_NTSC
  127 #endif
  128 
  129 
  130 
  131 
  132 /*
  133  * the data for each type of card
  134  *
  135  * Note:
  136  *   these entried MUST be kept in the order defined by the CARD_XXX defines!
  137  */
  138 static const struct CARDTYPE cards[] = {
  139 
  140         {  CARD_UNKNOWN,                        /* the card id */
  141           "Unknown",                            /* the 'name' */
  142            NULL,                                /* the tuner */
  143            0,                                   /* the tuner i2c address */
  144            0,                                   /* dbx unknown */
  145            0,
  146            0,
  147            0,                                   /* EEProm unknown */
  148            0,                                   /* EEProm unknown */
  149            { 0, 0, 0, 0, 0 },
  150            0 },                                 /* GPIO mask */
  151 
  152         {  CARD_MIRO,                           /* the card id */
  153           "Pinnacle/Miro TV",                   /* the 'name' */
  154            NULL,                                /* the tuner */
  155            0,                                   /* the tuner i2c address */
  156            0,                                   /* dbx unknown */
  157            0,
  158            0,
  159            0,                                   /* EEProm unknown */
  160            0,                                   /* size unknown */
  161            { 0x02, 0x01, 0x00, 0x0a, 1 },       /* audio MUX values */
  162            0x0f },                              /* GPIO mask */
  163 
  164         {  CARD_HAUPPAUGE,                      /* the card id */
  165           "Hauppauge WinCast/TV",               /* the 'name' */
  166            NULL,                                /* the tuner */
  167            0,                                   /* the tuner i2c address */
  168            0,                                   /* dbx is optional */
  169            0,
  170            0,
  171            PFC8582_WADDR,                       /* EEProm type */
  172            (u_char)(256 / EEPROMBLOCKSIZE),     /* 256 bytes */
  173            { 0x00, 0x02, 0x01, 0x04, 1 },       /* audio MUX values */
  174            0x0f },                              /* GPIO mask */
  175 
  176         {  CARD_STB,                            /* the card id */
  177           "STB TV/PCI",                         /* the 'name' */
  178            NULL,                                /* the tuner */
  179            0,                                   /* the tuner i2c address */
  180            0,                                   /* dbx is optional */
  181            0,
  182            0,
  183            X24C01_WADDR,                        /* EEProm type */
  184            (u_char)(128 / EEPROMBLOCKSIZE),     /* 128 bytes */
  185            { 0x00, 0x01, 0x02, 0x02, 1 },       /* audio MUX values */
  186            0x0f },                              /* GPIO mask */
  187 
  188         {  CARD_INTEL,                          /* the card id */
  189           "Intel Smart Video III/VideoLogic Captivator PCI", /* the 'name' */
  190            NULL,                                /* the tuner */
  191            0,                                   /* the tuner i2c address */
  192            0,
  193            0,
  194            0,
  195            0,
  196            0,
  197            { 0, 0, 0, 0, 0 },                   /* audio MUX values */
  198            0x00 },                              /* GPIO mask */
  199 
  200         {  CARD_IMS_TURBO,                      /* the card id */
  201           "IMS TV Turbo",                       /* the 'name' */
  202            NULL,                                /* the tuner */
  203            0,                                   /* the tuner i2c address */
  204            0,                                   /* dbx is optional */
  205            0,
  206            0,
  207            PFC8582_WADDR,                       /* EEProm type */
  208            (u_char)(256 / EEPROMBLOCKSIZE),     /* 256 bytes */
  209            { 0x01, 0x02, 0x01, 0x00, 1 },       /* audio MUX values */
  210            0x0f },                              /* GPIO mask */
  211 
  212         {  CARD_AVER_MEDIA,                     /* the card id */
  213           "AVer Media TV/FM",                   /* the 'name' */
  214            NULL,                                /* the tuner */
  215            0,                                   /* the tuner i2c address */
  216            0,                                   /* dbx is optional */
  217            0,
  218            0,
  219            0,                                   /* EEProm type */
  220            0,                                   /* EEProm size */
  221            { 0x0c, 0x08, 0x04, 0x00, 1 },       /* audio MUX values */
  222            0x1f },                              /* GPIO mask */
  223 
  224         {  CARD_OSPREY,                         /* the card id */
  225           "MMAC Osprey",                        /* the 'name' */
  226            NULL,                                /* the tuner */
  227            0,                                   /* the tuner i2c address */
  228            0,                                   /* dbx is optional */
  229            0,
  230            0,
  231            PFC8582_WADDR,                       /* EEProm type */
  232            (u_char)(256 / EEPROMBLOCKSIZE),     /* 256 bytes */
  233            { 0x00, 0x00, 0x00, 0x00, 0 },       /* audio MUX values */
  234            0 },                                 /* GPIO mask */
  235 
  236         {  CARD_NEC_PK,                         /* the card id */
  237           "NEC PK-UG-X017",                     /* the 'name' */
  238            NULL,                                /* the tuner */
  239            0,                                   /* the tuner i2c address */
  240            0,                                   /* dbx is optional */
  241            0,
  242            0,
  243            0,                                   /* EEProm type */
  244            0,                                   /* EEProm size */
  245            { 0x01, 0x02, 0x01, 0x00, 1 },       /* audio MUX values */
  246            0x0f },                              /* GPIO mask */
  247 
  248         {  CARD_IO_BCTV2,                       /* the card id */
  249           "I/O DATA GV-BCTV2/PCI",              /* the 'name' */
  250            NULL,                                /* the tuner */
  251            0,                                   /* the tuner i2c address */
  252            0,                                   /* dbx is optional */
  253            0,
  254            0,
  255            0,                                   /* EEProm type */
  256            0,                                   /* EEProm size */
  257            { 0x00, 0x00, 0x00, 0x00, 1 },       /* Has special MUX handler */
  258            0x0f },                              /* GPIO mask */
  259 
  260         {  CARD_FLYVIDEO,                       /* the card id */
  261           "FlyVideo",                           /* the 'name' */
  262            NULL,                                /* the tuner */
  263            0,                                   /* the tuner i2c address */
  264            0,                                   /* dbx is optional */
  265            0,                                   /* msp34xx is optional */
  266            0,                                   /* dpl3518a is optional */
  267            0xac,                                /* EEProm type */
  268            (u_char)(256 / EEPROMBLOCKSIZE),     /* 256 bytes */
  269            { 0x000, 0x800, 0x400, 0x8dff00, 1 },/* audio MUX values */
  270            0x8dff00 },                          /* GPIO mask */
  271 
  272         {  CARD_ZOLTRIX,                        /* the card id */
  273           "Zoltrix",                            /* the 'name' */
  274            NULL,                                /* the tuner */
  275            0,                                   /* the tuner i2c address */
  276            0,                                   /* dbx is optional */
  277            0,                                   /* msp34xx is optional */
  278            0,                                   /* dpl3518a is optional */
  279            0,                                   /* EEProm type */
  280            0,                                   /* EEProm size */
  281            { 0x04, 0x01, 0x00, 0x0a, 1 },       /* audio MUX values */
  282            0x0f },                              /* GPIO mask */
  283 
  284         {  CARD_KISS,                           /* the card id */
  285           "KISS TV/FM PCI",                     /* the 'name' */
  286            NULL,                                /* the tuner */
  287            0,                                   /* the tuner i2c address */
  288            0,                                   /* dbx is optional */
  289            0,                                   /* msp34xx is optional */
  290            0,                                   /* dpl3518a is optional */
  291            0,                                   /* EEProm type */
  292            0,                                   /* EEProm size */
  293            { 0x0c, 0x00, 0x0b, 0x0b, 1 },       /* audio MUX values */
  294            0x0f },                              /* GPIO mask */
  295 
  296         {  CARD_VIDEO_HIGHWAY_XTREME,           /* the card id */
  297           "Video Highway Xtreme",               /* the 'name' */
  298            NULL,                                /* the tuner */
  299            0,
  300            0,
  301            0,
  302            0,
  303            0,                                   /* EEProm type */
  304            0,                                   /* EEProm size */
  305            { 0x00, 0x02, 0x01, 0x04, 1 },       /* audio MUX values */
  306            0x0f },                              /* GPIO mask */
  307 
  308         {  CARD_ASKEY_DYNALINK_MAGIC_TVIEW,     /* the card id */
  309           "Askey/Dynalink Magic TView",         /* the 'name' */
  310            NULL,                                /* the tuner */
  311            0,
  312            0,
  313            0,
  314            0,
  315            0,                                   /* EEProm type */
  316            0,                                   /* EEProm size */
  317            { 0x400, 0xE00, 0x400, 0xC00, 1 },   /* audio MUX values */
  318            0xE00 },                             /* GPIO mask */
  319 
  320         {  CARD_LEADTEK,                        /* the card id */
  321           "Leadtek Winfast TV 2000",            /* the 'name' */
  322            NULL,                                /* the tuner */
  323            0,
  324            0,
  325            0,
  326            0,
  327            0,                                   /* EEProm type */
  328            0,                                   /* EEProm size */
  329            /* Tuner, Extern, Intern, Mute, Enabled */
  330            { 0x621000, 0x621000, 0x621000, 0xE21000, 1 }, /* audio MUX values */
  331            0xfff000 },                          /* GPIO mask */
  332 
  333         {  CARD_TERRATVPLUS,                    /* the card id */
  334           "TerraTVplus",                        /* the 'name' */
  335            NULL,                                /* the tuner */
  336            0,
  337            0,
  338            0,
  339            0,
  340            0,                                   /* EEProm type */
  341            0,                                   /* EEProm size */
  342            { 0x20000, 0x00000, 0x30000, 0x40000, 1 }, /* audio MUX values*/
  343            0x70000 },                           /* GPIO mask */
  344 
  345         {  CARD_IO_BCTV3,                       /* the card id */
  346           "I/O DATA GV-BCTV3/PCI",              /* the 'name' */
  347            NULL,                                /* the tuner */
  348            0,                                   /* the tuner i2c address */
  349            0,                                   /* dbx is optional */
  350            0,
  351            0,
  352            0,                                   /* EEProm type */
  353            0,                                   /* EEProm size */
  354            /* Tuner, Extern, Intern, Mute, Enabled */
  355            { 0x10000, 0, 0x10000, 0, 1 },       /* audio MUX values */
  356            0x10f00 },                           /* GPIO mask */
  357 
  358         {  CARD_AOPEN_VA1000,                   /* the card id */
  359           "AOpen VA1000",                       /* the 'name' */
  360            NULL,                                /* the tuner */
  361            0,                                   /* the tuner i2c address */
  362            0,                                   /* dbx is optional */
  363            0,
  364            0,
  365            0,                                   /* EEProm unknown */
  366            0,                                   /* size unknown */
  367            { 0x02, 0x00, 0x00, 0x00, 1 },       /* audio MUX values */
  368            0x18e0 },                            /* GPIO mask */
  369 
  370         {  CARD_PINNACLE_PCTV_RAVE,             /* the card id */
  371           "Pinnacle PCTV Rave",                 /* the 'name' */
  372            NULL,                                /* the tuner */
  373            0,                                   /* the tuner i2c address */
  374            0,                                   /* dbx unknown */
  375            0,
  376            0,
  377            0,                                   /* EEProm unknown */
  378            0,                                   /* size unknown */
  379            { 0x02, 0x01, 0x00, 0x0a, 1 },       /* audio MUX values */
  380            0x03000F },                          /* GPIO mask */
  381 
  382         {  CARD_PIXELVIEW_PLAYTV_PAK,       /* the card id */
  383            "PixelView PlayTV Pak",              /* the 'name' */
  384             NULL,                               /* the tuner */
  385             0,                                  /* the tuner i2c address */
  386             0,                                  /* dbx is optional */
  387             0,
  388             0,
  389             PFC8582_WADDR,                      /* EEProm type */
  390             (u_char)(256 / EEPROMBLOCKSIZE),    /* 256 bytes */
  391             { 0x20000, 0x80000, 0, 0xa8000, 1 },        /* audio MUX values */
  392             0xAA0000 },                         /* GPIO mask */
  393 
  394         {  CARD_TERRATVALUE,                    /* the card id */
  395            "TerraTec TValue",                   /* the 'name' */
  396            NULL,                                /* the tuner */
  397            0,                                   /* the tuner i2c address */
  398            0,                                   /* dbx is optional */
  399            0,
  400            0,
  401            0,                                   /* EEProm type */
  402            0,                                   /* EEProm size */
  403            /* Tuner, Extern, Intern, Mute, Enabled */
  404            { 0x500, 0x900, 0x300, 0x900, 1 },   /* audio MUX values */
  405            0xffff00 },                          /* GPIO mask */
  406 
  407         {  CARD_PIXELVIEW_PLAYTV_PRO_REV_4C,    /* the card id */
  408            "PixelView PlayTV Pro REV-4C ",      /* the 'name' */
  409            NULL,                                /* the tuner */
  410            0,                                   /* the tuner i2c address */
  411            0,                                   /* dbx is optional */
  412            0,
  413            0,
  414            0,                                   /* EEProm type */
  415            0,                                   /* EEProm size */
  416            { 0x01, 0x04, 0x01, 0x03, 1 },       /* audio MUX values */
  417            0x00ffffff },
  418 };
  419 
  420 struct bt848_card_sig bt848_card_signature[1]= {
  421   /* IMS TURBO TV : card 5 */
  422     {  5,9, {00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 02, 00, 00, 00}}
  423 
  424 
  425 };
  426 
  427 
  428 /*
  429  * Write to the configuration EEPROM on the card.
  430  * This is dangerous and will mess up your card. Therefore it is not
  431  * implemented.
  432  */
  433 int      
  434 writeEEProm( bktr_ptr_t bktr, int offset, int count, u_char *data )
  435 {
  436         return( -1 );
  437 }
  438 
  439 /*
  440  * Read the contents of the configuration EEPROM on the card.
  441  * (This is not fitted to all makes of card. All Hauppauge cards have them
  442  * and so do newer Bt878 based cards.
  443  */
  444 int
  445 readEEProm( bktr_ptr_t bktr, int offset, int count, u_char *data )
  446 {
  447         int     x;
  448         int     addr;
  449         int     max;
  450         int     byte;
  451 
  452         /* get the address of the EEProm */
  453         addr = (int)(bktr->card.eepromAddr & 0xff);
  454         if ( addr == 0 )
  455                 return( -1 );
  456 
  457         max = (int)(bktr->card.eepromSize * EEPROMBLOCKSIZE);
  458         if ( (offset + count) > max )
  459                 return( -1 );
  460 
  461         /* set the start address */
  462         if ( i2cWrite( bktr, addr, offset, -1 ) == -1 )
  463                 return( -1 );
  464 
  465         /* the read cycle */
  466         for ( x = 0; x < count; ++x ) {
  467                 if ( (byte = i2cRead( bktr, (addr | 1) )) == -1 )
  468                         return( -1 );
  469                 data[ x ] = byte;
  470         }
  471 
  472         return( 0 );
  473 }
  474 
  475 
  476 #define ABSENT          (-1)
  477 
  478 /*
  479  * get a signature of the card
  480  * read all 128 possible i2c read addresses from 0x01 thru 0xff
  481  * build a bit array with a 1 bit for each i2c device that responds
  482  *
  483  * XXX FIXME: use offset & count args
  484  */
  485 int
  486 signCard( bktr_ptr_t bktr, int offset, int count, u_char* sig )
  487 {
  488         int     x;
  489 
  490         for ( x = 0; x < 16; ++x )
  491                 sig[ x ] = 0;
  492 
  493         for ( x = 0; x < count; ++x ) {
  494                 if ( i2cRead( bktr, (2 * x) + 1 ) != ABSENT ) {
  495                         sig[ x / 8 ] |= (1 << (x % 8) );
  496                 }
  497         }
  498 
  499         return( 0 );
  500 }
  501 
  502 
  503 /*
  504  * check_for_i2c_devices.
  505  * Some BT848 cards have no tuner and no additional i2c devices
  506  * eg stereo decoder. These are used for video conferencing or capture from
  507  * a video camera. (eg VideoLogic Captivator PCI, Intel SmartCapture card).
  508  *
  509  * Determine if there are any i2c devices present. There are none present if
  510  *  a) reading from all 128 devices returns ABSENT (-1) for each one
  511  *     (eg VideoLogic Captivator PCI with BT848)
  512  *  b) reading from all 128 devices returns 0 for each one
  513  *     (eg VideoLogic Captivator PCI rev. 2F with BT848A)
  514  */
  515 static int check_for_i2c_devices( bktr_ptr_t bktr ){
  516   int x, temp_read;
  517   int i2c_all_0 = 1;
  518   int i2c_all_absent = 1;
  519   for ( x = 0; x < 128; ++x ) {
  520     temp_read = i2cRead( bktr, (2 * x) + 1 );
  521     if (temp_read != 0)      i2c_all_0 = 0;
  522     if (temp_read != ABSENT) i2c_all_absent = 0;
  523   }
  524 
  525   if ((i2c_all_0) || (i2c_all_absent)) return 0;
  526   else return 1;
  527 }
  528 
  529 
  530 /*
  531  * Temic/Philips datasheets say tuners can be at i2c addresses 0xc0, 0xc2,
  532  * 0xc4 or 0xc6, settable by links on the tuner.
  533  * Determine the actual address used on the TV card by probing read addresses.
  534  */
  535 static int locate_tuner_address( bktr_ptr_t bktr) {
  536   if (i2cRead( bktr, 0xc1) != ABSENT) return 0xc0;
  537   if (i2cRead( bktr, 0xc3) != ABSENT) return 0xc2;
  538   if (i2cRead( bktr, 0xc5) != ABSENT) return 0xc4;
  539   if (i2cRead( bktr, 0xc7) != ABSENT) return 0xc6;
  540   return -1; /* no tuner found */
  541 }
  542 
  543  
  544 /*
  545  * Search for a configuration EEPROM on the i2c bus by looking at i2c addresses
  546  * where EEPROMs are usually found.
  547  * On some cards, the EEPROM appears in several locations, but all in the
  548  * range 0xa0 to 0xae.
  549  */
  550 static int locate_eeprom_address( bktr_ptr_t bktr) {
  551   if (i2cRead( bktr, 0xa0) != ABSENT) return 0xa0;
  552   if (i2cRead( bktr, 0xac) != ABSENT) return 0xac;
  553   if (i2cRead( bktr, 0xae) != ABSENT) return 0xae;
  554   return -1; /* no eeprom found */
  555 }
  556 
  557 
  558 /*
  559  * determine the card brand/model
  560  * BKTR_OVERRIDE_CARD, BKTR_OVERRIDE_TUNER, BKTR_OVERRIDE_DBX and
  561  * BKTR_OVERRIDE_MSP can be used to select a specific device,
  562  * regardless of the autodetection and i2c device checks.
  563  *
  564  * The scheme used for probing cards faces these problems:
  565  *  It is impossible to work out which type of tuner is actually fitted,
  566  *  (the driver cannot tell if the Tuner is PAL or NTSC, Temic or Philips)
  567  *  It is impossible to determine what audio-mux hardware is connected.
  568  *  It is impossible to determine if there is extra hardware connected to the
  569  *  GPIO pins  (eg radio chips or MSP34xx reset logic)
  570  *
  571  * However some makes of card (eg Hauppauge) come with a configuration eeprom
  572  * which tells us the make of the card. Most eeproms also tell us the
  573  * tuner type and other features of the cards.
  574  *
  575  * The current probe code works as follows
  576  * A) If the card uses a Bt878/879:
  577  *   1) Read the sub-system vendor id from the configuration EEPROM.
  578  *      Select the required tuner, audio mux arrangement and any other
  579  *      onboard features. If this fails, move to step B.
  580  * B) If it card uses a Bt848, 848A, 849A or an unknown Bt878/879:
  581  *   1) Look for I2C devices. If there are none fitted, it is an Intel or
  582  *      VideoLogic cards.
  583  *   2) Look for a configuration EEPROM.
  584  *   2a) If there is one at I2C address 0xa0 it may be
  585  *       a Hauppauge or an Osprey. Check the EEPROM contents to determine which
  586  *       one it is. For Hauppauge, select the tuner type and audio hardware.
  587  *   2b) If there is an EEPROM at I2C address 0xa8 it will be an STB card.
  588  *       We still have to guess on the tuner type.
  589  *              
  590  * C) If we do not know the card type from (A) or (B), guess at the tuner
  591  *    type based on the I2C address of the tuner.
  592  *
  593  * D) After determining the Tuner Type, we probe the i2c bus for other
  594  *    devices at known locations, eg IR-Remote Control, MSP34xx and TDA
  595  *    stereo chips.
  596  */
  597 
  598 
  599 /*
  600  * These are the sub-system vendor ID codes stored in the
  601  * configuration EEPROM used on Bt878/879 cards. They should match the
  602  * number assigned to the company by the PCI Special Interest Group
  603  */
  604 #ifndef __NetBSD__
  605 #define PCI_VENDOR_HAUPPAUGE    0x0070
  606 #define PCI_VENDOR_AVERMEDIA    0x1461
  607 #define PCI_VENDOR_STB          0x10B4
  608 #define PCI_VENDOR_ASKEY        0x144F
  609 #define PCI_VENDOR_TERRATEC     0x153B
  610 #endif
  611 /* Following not confirmed with http://members.hyperlink.net.au/~chart,
  612    so not added to NetBSD's pcidevs */
  613 #define PCI_VENDOR_LEADTEK_ALT  0x6606
  614 #define PCI_VENDOR_LEADTEK_ALT_2        0x6607
  615 #define PCI_VENDOR_LEADTEK_ALT_3        0x107d
  616 #define PCI_VENDOR_FLYVIDEO     0x1851
  617 #define PCI_VENDOR_FLYVIDEO_2   0x1852
  618 #define PCI_VENDOR_IODATA       0x10fc
  619 #define PCI_VENDOR_PINNACLE_ALT 0xBD11  /* They got their own ID backwards? */
  620 #define PCI_VENDOR_PINNACLE_NEW 0x11BD
  621 
  622 #define MODEL_IODATA_GV_BCTV3_PCI       0x4020
  623 #define MODEL_TERRATVALUE_1117          0x1117
  624 #define MODEL_TERRATVALUE_1118          0x1118
  625 #define MODEL_TERRATVALUE_1119          0x1119
  626 #define MODEL_TERRATVALUE_111A          0x111a
  627 #define MODEL_TERRATVALUE_1134          0x1134
  628 
  629 void
  630 probeCard( bktr_ptr_t bktr, int verbose, int unit )
  631 {
  632         int             card, i,j, card_found;
  633         int             status;
  634         u_char          probe_signature[128], *probe_temp;
  635         int             any_i2c_devices;
  636         u_char          eeprom[256];
  637         int             tuner_i2c_address = -1;
  638         int             eeprom_i2c_address = -1;
  639 
  640         /* Select all GPIO bits as inputs */
  641         OUTL(bktr, BKTR_GPIO_OUT_EN, 0);
  642         if (bootverbose)
  643             printf("%s: GPIO is 0x%08x\n", bktr_name(bktr),
  644                    INL(bktr, BKTR_GPIO_DATA)); 
  645 
  646 #ifdef HAUPPAUGE_MSP_RESET
  647         /* Reset the MSP34xx audio chip. This resolves bootup card
  648          * detection problems with old Bt848 based Hauppauge cards with
  649          * MSP34xx stereo audio chips. This must be user enabled because
  650          * at this point the probe function does not know the card type. */
  651         OUTL(bktr, BKTR_GPIO_OUT_EN, INL(bktr, BKTR_GPIO_OUT_EN) | (1<<5));
  652         OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
  653         DELAY(2500); /* wait 2.5ms */
  654         OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) & ~(1<<5)); /* write '' */
  655         DELAY(2500); /* wait 2.5ms */
  656         OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
  657         DELAY(2500); /* wait 2.5ms */
  658 #endif
  659 
  660         /* Check for the presence of i2c devices */
  661         any_i2c_devices = check_for_i2c_devices( bktr );
  662 
  663 
  664         /* Check for a user specified override on the card selection */
  665 #if defined( BKTR_OVERRIDE_CARD )
  666         bktr->card = cards[ (card = BKTR_OVERRIDE_CARD) ];
  667         goto checkEEPROM;
  668 #endif
  669         if (bktr->bt848_card != -1 ) {
  670           bktr->card = cards[ (card = bktr->bt848_card) ];
  671           goto checkEEPROM;
  672         }
  673 
  674 
  675         /* No override, so try and determine the make of the card */
  676 
  677         /* On BT878/879 cards, read the sub-system vendor id */
  678         /* This identifies the manufacturer of the card and the model */
  679         /* In theory this can be read from PCI registers but this does not */
  680         /* appear to work on the FlyVideo 98. Hauppauge also warned that */
  681         /* the PCI registers are sometimes not loaded correctly. */
  682         /* Therefore, I will read the sub-system vendor ID from the EEPROM */
  683         /* (just like the Bt878 does during power up initialisation) */
  684 
  685         if ((bktr->id==BROOKTREE_878) || (bktr->id==BROOKTREE_879)) {
  686             /* Try and locate the EEPROM */
  687             eeprom_i2c_address = locate_eeprom_address( bktr );
  688             if (eeprom_i2c_address != -1) {
  689 
  690                 unsigned int subsystem_vendor_id; /* vendors PCI-SIG ID */
  691                 unsigned int subsystem_id;        /* board model number */
  692                 unsigned int byte_252, byte_253, byte_254, byte_255;
  693 
  694                 bktr->card = cards[ (card = CARD_UNKNOWN) ];
  695                 bktr->card.eepromAddr = eeprom_i2c_address;
  696                 bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  697 
  698                 readEEProm(bktr, 0, 256, (u_char *) &eeprom );
  699                 byte_252 = (unsigned int)eeprom[252];
  700                 byte_253 = (unsigned int)eeprom[253];
  701                 byte_254 = (unsigned int)eeprom[254];
  702                 byte_255 = (unsigned int)eeprom[255];
  703                 
  704                 subsystem_id        = (byte_252 << 8) | byte_253;
  705                 subsystem_vendor_id = (byte_254 << 8) | byte_255;
  706 
  707                 if ( bootverbose ) 
  708                     printf("%s: subsystem 0x%04x 0x%04x\n", bktr_name(bktr),
  709                            subsystem_vendor_id, subsystem_id);
  710 
  711                 if (subsystem_vendor_id == PCI_VENDOR_AVERMEDIA) {
  712                     bktr->card = cards[ (card = CARD_AVER_MEDIA) ];
  713                     bktr->card.eepromAddr = eeprom_i2c_address;
  714                     bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  715                     goto checkTuner;
  716                 }
  717 
  718                 if (subsystem_vendor_id == PCI_VENDOR_HAUPPAUGE) {
  719                     bktr->card = cards[ (card = CARD_HAUPPAUGE) ];
  720                     bktr->card.eepromAddr = eeprom_i2c_address;
  721                     bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  722                     goto checkTuner;
  723                 }
  724 
  725                 if ((subsystem_vendor_id == PCI_VENDOR_FLYVIDEO)
  726                  || (subsystem_vendor_id == PCI_VENDOR_FLYVIDEO_2) ) {
  727                     bktr->card = cards[ (card = CARD_FLYVIDEO) ];
  728                     bktr->card.eepromAddr = eeprom_i2c_address;
  729                     bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  730                     goto checkTuner;
  731                 }
  732 
  733                 if (subsystem_vendor_id == PCI_VENDOR_STB) {
  734                     bktr->card = cards[ (card = CARD_STB) ];
  735                     bktr->card.eepromAddr = eeprom_i2c_address;
  736                     bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  737                     goto checkTuner;
  738                 }
  739 
  740                 if (subsystem_vendor_id == PCI_VENDOR_ASKEY) {
  741                     bktr->card = cards[ (card = CARD_ASKEY_DYNALINK_MAGIC_TVIEW) ];
  742                     bktr->card.eepromAddr = eeprom_i2c_address;
  743                     bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  744                     goto checkTuner;
  745                 }
  746 
  747                 if ((subsystem_vendor_id == PCI_VENDOR_LEADTEK_ALT)
  748                  || (subsystem_vendor_id == PCI_VENDOR_LEADTEK_ALT_2)
  749                  || (subsystem_vendor_id == PCI_VENDOR_LEADTEK_ALT_3)) {
  750                     bktr->card = cards[ (card = CARD_LEADTEK) ];
  751                     bktr->card.eepromAddr = eeprom_i2c_address;
  752                     bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  753                     goto checkTuner;
  754                 }
  755 
  756                 if (subsystem_vendor_id == PCI_VENDOR_PINNACLE_ALT ||
  757                     subsystem_vendor_id == PCI_VENDOR_PINNACLE_NEW) {
  758                     bktr->card = cards[ (card = CARD_MIRO) ];
  759                     bktr->card.eepromAddr = eeprom_i2c_address;
  760                     bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  761                     goto checkTuner;
  762                 }
  763 
  764                 if (subsystem_vendor_id == PCI_VENDOR_IODATA &&
  765                     subsystem_id == MODEL_IODATA_GV_BCTV3_PCI) {
  766                     bktr->card = cards[ (card = CARD_IO_BCTV3) ];
  767                     bktr->card.eepromAddr = eeprom_i2c_address;
  768                     bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  769                     goto checkTuner;
  770                 }
  771 
  772                 if (subsystem_vendor_id == PCI_VENDOR_TERRATEC) {
  773                     switch (subsystem_id) {
  774                         case MODEL_TERRATVALUE_1117:
  775                         case MODEL_TERRATVALUE_1118:
  776                         case MODEL_TERRATVALUE_1119:
  777                         case MODEL_TERRATVALUE_111A:
  778                         case MODEL_TERRATVALUE_1134:
  779                             bktr->card = cards[ (card = CARD_TERRATVALUE) ];
  780                             bktr->card.eepromAddr = eeprom_i2c_address;
  781                             bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  782                             goto checkTuner;
  783                     }
  784                 }
  785 
  786                 /* Vendor is unknown. We will use the standard probe code */
  787                 /* which may not give best results */
  788                 printf("%s: Warning - card vendor 0x%04x (model 0x%04x) unknown.\n",
  789                        bktr_name(bktr), subsystem_vendor_id, subsystem_id);
  790             }
  791             else
  792             {
  793                 printf("%s: Card has no configuration EEPROM. Cannot determine card make.\n",
  794                        bktr_name(bktr));
  795             }
  796         } /* end of bt878/bt879 card detection code */
  797 
  798         /* If we get to this point, we must have a Bt848/848A/849A card */
  799         /* or a Bt878/879 with an unknown subsystem vendor id */
  800         /* Try and determine the make of card by clever i2c probing */
  801 
  802         /* Check for i2c devices. If none, move on */
  803         if (!any_i2c_devices) {
  804                 bktr->card = cards[ (card = CARD_INTEL) ];
  805                 bktr->card.eepromAddr = 0;
  806                 bktr->card.eepromSize = 0;
  807                 goto checkTuner;
  808         }
  809 
  810         /* Look for Hauppauge, STB and Osprey cards by the presence */
  811         /* of an EEPROM */
  812         /* Note: Bt878 based cards also use EEPROMs so we can only do this */
  813         /* test on BT848/848A and 849A based cards. */
  814         if ((bktr->id==BROOKTREE_848)  ||
  815             (bktr->id==BROOKTREE_848A) ||
  816             (bktr->id==BROOKTREE_849A)) {
  817 
  818             /* At i2c address 0xa0, look for Hauppauge and Osprey cards */
  819             if ( (status = i2cRead( bktr, PFC8582_RADDR )) != ABSENT ) {
  820 
  821                     /* Read the eeprom contents */
  822                     bktr->card = cards[ (card = CARD_UNKNOWN) ];
  823                     bktr->card.eepromAddr = PFC8582_WADDR;
  824                     bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  825                     readEEProm(bktr, 0, 128, (u_char *) &eeprom );
  826 
  827                     /* For Hauppauge, check the EEPROM begins with 0x84 */
  828                     if (eeprom[0] == 0x84) {
  829                             bktr->card = cards[ (card = CARD_HAUPPAUGE) ];
  830                             bktr->card.eepromAddr = PFC8582_WADDR;
  831                             bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  832                             goto checkTuner;
  833                     }
  834 
  835                     /* For Osprey, check the EEPROM begins with "MMAC" */
  836                     if (  (eeprom[0] == 'M') &&(eeprom[1] == 'M')
  837                         &&(eeprom[2] == 'A') &&(eeprom[3] == 'C')) {
  838                             bktr->card = cards[ (card = CARD_OSPREY) ];
  839                             bktr->card.eepromAddr = PFC8582_WADDR;
  840                             bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  841                             goto checkTuner;
  842                     }
  843                     printf("%s: Warning: Unknown card type. EEPROM data not recognised\n",
  844                            bktr_name(bktr));
  845                     printf("%s: %x %x %x %x\n", bktr_name(bktr),
  846                            eeprom[0],eeprom[1],eeprom[2],eeprom[3]);
  847             }
  848 
  849             /* look for an STB card */
  850             if ( (status = i2cRead( bktr, X24C01_RADDR )) != ABSENT ) {
  851                     bktr->card = cards[ (card = CARD_STB) ];
  852                     bktr->card.eepromAddr = X24C01_WADDR;
  853                     bktr->card.eepromSize = (u_char)(128 / EEPROMBLOCKSIZE);
  854                     goto checkTuner;
  855             }
  856 
  857         }
  858 
  859         signCard( bktr, 1, 128, (u_char *)  &probe_signature );
  860 
  861         if (bootverbose) {
  862           printf("%s: card signature: ", bktr_name(bktr));
  863           for (j = 0; j < Bt848_MAX_SIGN; j++) {
  864             printf(" %02x ", probe_signature[j]);
  865           }
  866           printf("\n\n");
  867         }
  868         for (i = 0;
  869              i < (sizeof bt848_card_signature)/ sizeof (struct bt848_card_sig);
  870              i++ ) {
  871 
  872           card_found = 1;
  873           probe_temp = (u_char *) &bt848_card_signature[i].signature;
  874 
  875           for (j = 0; j < Bt848_MAX_SIGN; j++) {
  876             if ((probe_temp[j] & 0xf) != (probe_signature[j] & 0xf)) {
  877               card_found = 0;
  878               break;
  879             }
  880 
  881           }
  882           if (card_found) {
  883             bktr->card = cards[ card = bt848_card_signature[i].card];
  884             eeprom_i2c_address = locate_eeprom_address( bktr );
  885             if (eeprom_i2c_address != -1) {
  886                 bktr->card.eepromAddr = eeprom_i2c_address;
  887                 bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  888             } else {
  889                 bktr->card.eepromAddr = 0;
  890                 bktr->card.eepromSize = 0;
  891             }
  892             tuner_i2c_address = locate_tuner_address( bktr );   
  893             select_tuner( bktr, bt848_card_signature[i].tuner );
  894             goto checkDBX;
  895           }
  896         }
  897 
  898         /* We do not know the card type. Default to Miro */
  899         bktr->card = cards[ (card = CARD_MIRO) ];
  900 
  901 
  902 checkEEPROM:
  903         /* look for a configuration eeprom */
  904         eeprom_i2c_address = locate_eeprom_address( bktr );
  905         if (eeprom_i2c_address != -1) {
  906             bktr->card.eepromAddr = eeprom_i2c_address;
  907             bktr->card.eepromSize = (u_char)(256 / EEPROMBLOCKSIZE);
  908         } else {
  909             bktr->card.eepromAddr = 0;
  910             bktr->card.eepromSize = 0;
  911         }
  912 
  913 
  914 checkTuner:
  915 
  916 #if !defined( BKTR_OVERRIDE_TUNER )
  917         if (card == CARD_MIRO && mt2032_init(bktr) == 0 &&
  918             bktr->bt848_tuner == -1) {
  919                 bktr->card = cards[ (card = CARD_PINNACLE_PCTV_RAVE) ];
  920                 select_tuner( bktr, TUNER_MT2032 );
  921                 goto checkDBX;
  922         }
  923 #endif
  924 
  925         /* look for a tuner */
  926         tuner_i2c_address = locate_tuner_address( bktr );
  927         if ( tuner_i2c_address == -1 ) {
  928                 select_tuner( bktr, NO_TUNER );
  929                 goto checkDBX;
  930         }
  931 
  932 #if defined( BKTR_OVERRIDE_TUNER )
  933         select_tuner( bktr, BKTR_OVERRIDE_TUNER );
  934         goto checkDBX;
  935 #endif
  936         if (bktr->bt848_tuner != -1 ) {
  937           select_tuner( bktr, bktr->bt848_tuner & 0xff );
  938           goto checkDBX;
  939         }
  940 
  941         /* Check for i2c devices */
  942         if (!any_i2c_devices) {
  943                 select_tuner( bktr, NO_TUNER );
  944                 goto checkDBX;
  945         }
  946 
  947         /* differentiate type of tuner */
  948 
  949         switch (card) {
  950         case CARD_MIRO:
  951             switch (((INL(bktr, BKTR_GPIO_DATA) >> 10)-1)&7) {
  952             case 0: select_tuner( bktr, TEMIC_PAL ); break;
  953             case 1: select_tuner( bktr, PHILIPS_PAL ); break;
  954             case 2: select_tuner( bktr, PHILIPS_NTSC ); break;
  955             case 3: select_tuner( bktr, PHILIPS_SECAM ); break;
  956             case 4: select_tuner( bktr, NO_TUNER ); break;
  957             case 5: select_tuner( bktr, PHILIPS_PALI ); break;
  958             case 6: select_tuner( bktr, TEMIC_NTSC ); break;
  959             case 7: select_tuner( bktr, TEMIC_PALI ); break;
  960             }
  961             goto checkDBX;
  962             break;
  963 
  964         case CARD_HAUPPAUGE:
  965             /* Hauppauge kindly supplied the following Tuner Table */
  966             /* FIXME: I think the tuners the driver selects for types */
  967             /* 0x08 and 0x15 may be incorrect but no one has complained. */
  968             /* Old Temic tuners had their own API, but newer Temic tuners */
  969             /* have the same API as Philips tuners */
  970             /*
  971   ID  Tuner Model           Format                      We select Format
  972  0x00 NONE               
  973  0x01 EXTERNAL             
  974  0x02 OTHER                
  975  0x03 Philips FI1216        BG 
  976  0x04 Philips FI1216MF      BGLL'                       PHILIPS_SECAM
  977  0x05 Philips FI1236        MN                          PHILIPS_NTSC
  978  0x06 Philips FI1246        I                           PHILIPS_PALI
  979  0x07 Philips FI1256        DK 
  980  0x08 Philips FI1216 MK2    BG                          PHILIPS_PALI
  981  0x09 Philips FI1216MF MK2  BGLL'                       PHILIPS_SECAM
  982  0x0a Philips FI1236 MK2    MN                          PHILIPS_NTSC
  983  0x0b Philips FI1246 MK2    I                           PHILIPS_PALI
  984  0x0c Philips FI1256 MK2    DK 
  985  0x0d Temic 4032FY5         NTSC                        TEMIC_NTSC
  986  0x0e Temic 4002FH5         BG                          TEMIC_PAL
  987  0x0f Temic 4062FY5         I                           TEMIC_PALI
  988  0x10 Philips FR1216 MK2    BG 
  989  0x11 Philips FR1216MF MK2  BGLL'                       PHILIPS_FR1236_SECAM
  990  0x12 Philips FR1236 MK2    MN                          PHILIPS_FR1236_NTSC
  991  0x13 Philips FR1246 MK2    I 
  992  0x14 Philips FR1256 MK2    DK 
  993  0x15 Philips FM1216        BG                          PHILIPS_FR1216_PAL
  994  0x16 Philips FM1216MF      BGLL'                       PHILIPS_FR1236_SECAM
  995  0x17 Philips FM1236        MN                          PHILIPS_FR1236_NTSC
  996  0x18 Philips FM1246        I 
  997  0x19 Philips FM1256        DK 
  998  0x1a Temic 4036FY5         MN (FI1236 MK2 clone)       PHILIPS_NTSC
  999  0x1b Samsung TCPN9082D     MN 
 1000  0x1c Samsung TCPM9092P     Pal BG/I/DK 
 1001  0x1d Temic 4006FH5         BG                          PHILIPS_PALI
 1002  0x1e Samsung TCPN9085D     MN/Radio 
 1003  0x1f Samsung TCPB9085P     Pal BG/I/DK / Radio 
 1004  0x20 Samsung TCPL9091P     Pal BG & Secam L/L' 
 1005  0x21 Temic 4039FY5         NTSC Radio
 1006  0x22 Philips FQ1216ME      Pal BGIDK & Secam L/L' 
 1007  0x23 Temic 4066FY5         Pal I (FI1246 MK2 clone)    PHILIPS_PALI
 1008  0x24 Philips TD1536        MN/ATSCDigital
 1009  0x25 Philips TD1536D       MN/ATSCDigital DUAL INPUT
 1010  0x26 Philips FMR1236       M/N FM(no demod)
 1011  0x27 Philips FI1256MP      B/G, D/K
 1012  0x28 Samsung TCPQ9091P     BG/I/DK, L/L'
 1013  0x29 Temic 4006FN5         BG/I/DK
 1014  0x2a Temic 4009FR5         BG FM                       PHILIPS_FR1216_PAL
 1015  0x2b Temic 4046FM5         B/G, I, D/K, L/L'
 1016  0x2c Temic 4009FN5         B/G, I, D/K, FM (no demod)
 1017  0x2d Philips TD1536D_FH_44 MN/ATSCDigital DUAL INPUT
 1018             */
 1019 
 1020 
 1021             /* Determine the model number from the eeprom */
 1022             if (bktr->card.eepromAddr != 0) {
 1023                 /* eeprom data block structure */
 1024                 unsigned char *block_1, *block_2, *block_3, *block_4;
 1025                 int block_1_data_size,  block_2_data_size, block_3_data_size;
 1026                 int block_1_total_size, block_2_total_size, block_3_total_size;
 1027                 int block_4_header_size;
 1028 
 1029                 unsigned int model,revision;
 1030                 unsigned char tuner_code;
 1031                 unsigned char no_audio_mux;
 1032 
 1033                 readEEProm(bktr, 0, 128, (u_char *) &eeprom );
 1034 
 1035                 /* LOCATE THE EEPROM DATA BLOCKS */
 1036                 block_1 = &eeprom[0];
 1037                 block_1_data_size = (block_1[2] << 8 | block_1[1]);
 1038                 block_1_total_size = block_1_data_size + 3; /* Header bytes */   
 1039     
 1040                 block_2 = &eeprom[block_1_total_size];
 1041                 block_2_data_size = (block_2[2] << 8 | block_2[1]);
 1042                 block_2_total_size = block_2_data_size + 3; /* Header bytes */
 1043     
 1044                 block_3 = &eeprom[block_1_total_size + block_2_total_size];
 1045                 block_3_data_size = (block_3[0] &0x07);
 1046                 block_3_total_size = block_3_data_size + 1; /* Header size */
 1047 
 1048                 block_4 = &eeprom[block_1_total_size +block_2_total_size +block_3_total_size];
 1049                 block_4_header_size = 1;
 1050 
 1051                 model    = (block_1[12] << 8  | block_1[11]);
 1052                 revision = (block_1[15] << 16 | block_1[14] << 8 | block_1[13]);
 1053 
 1054                 tuner_code = block_1[9];
 1055 
 1056                 no_audio_mux = ((block_3[3] >> 7) &0x01);
 1057 
 1058                 if (no_audio_mux) bktr->audio_mux_present = 0;
 1059                
 1060                 if (verbose)
 1061                     printf("%s: Hauppauge Model %d %c%c%c%c\n",
 1062                            bktr_name(bktr),
 1063                            model,
 1064                            ((revision >> 18) & 0x3f) + 32,
 1065                            ((revision >> 12) & 0x3f) + 32,
 1066                            ((revision >>  6) & 0x3f) + 32,
 1067                            ((revision >>  0) & 0x3f) + 32 );
 1068 
 1069                 /* Determine the tuner type from the eeprom */
 1070 
 1071                 switch (tuner_code) {
 1072 
 1073                   case 0x5:
 1074                   case 0x0a:
 1075                   case 0x1a:
 1076                     select_tuner( bktr, PHILIPS_NTSC );
 1077                     goto checkDBX;
 1078 
 1079                   case 0x4:
 1080                   case 0x9:
 1081                     select_tuner( bktr, PHILIPS_SECAM );
 1082                     goto checkDBX;
 1083 
 1084                   case 0x11:
 1085                   case 0x16:
 1086                     select_tuner( bktr, PHILIPS_FR1236_SECAM );
 1087                     goto checkDBX;
 1088 
 1089                   case 0x12:
 1090                   case 0x17:
 1091                   case 0x21:
 1092                     select_tuner( bktr, PHILIPS_FR1236_NTSC );
 1093                     goto checkDBX;
 1094 
 1095                   case 0x6:
 1096                   case 0x8:
 1097                   case 0xb:
 1098                   case 0x1d:
 1099                   case 0x23:
 1100                     select_tuner( bktr, PHILIPS_PALI );
 1101                     goto checkDBX;
 1102 
 1103                   case 0xd:
 1104                     select_tuner( bktr, TEMIC_NTSC );
 1105                     goto checkDBX;
 1106 
 1107                   case 0xe:
 1108                     select_tuner( bktr, TEMIC_PAL );
 1109                     goto checkDBX;
 1110 
 1111                   case 0xf:
 1112                     select_tuner( bktr, TEMIC_PALI );
 1113                     goto checkDBX;
 1114 
 1115                   case 0x15:
 1116                     select_tuner( bktr, PHILIPS_FR1216_PAL );
 1117                     goto checkDBX;
 1118 
 1119                   case 0x2a:
 1120                     bktr->msp_use_mono_source = 1;
 1121                     select_tuner( bktr, PHILIPS_FR1216_PAL );
 1122                     goto checkDBX;
 1123 
 1124                   default :
 1125                     printf("%s: Warning - Unknown Hauppauge Tuner 0x%x\n",
 1126                            bktr_name(bktr), tuner_code);
 1127                 }
 1128             }
 1129             break;
 1130 
 1131 
 1132         case CARD_AVER_MEDIA:
 1133             /* AVerMedia kindly supplied some details of their EEPROM contents
 1134              * which allow us to auto select the Tuner Type.
 1135              * Only the newer AVerMedia cards actually have an EEPROM.
 1136              */
 1137             if (bktr->card.eepromAddr != 0) {
 1138 
 1139                 u_char tuner_make;   /* Eg Philips, Temic */
 1140                 u_char tuner_tv_fm;  /* TV or TV with FM Radio */
 1141                 u_char tuner_format; /* Eg NTSC, PAL, SECAM */
 1142                 int    tuner;
 1143 
 1144                 int tuner_0_table[] = {
 1145                         PHILIPS_NTSC,  PHILIPS_PAL,
 1146                         PHILIPS_PAL,   PHILIPS_PAL,
 1147                         PHILIPS_PAL,   PHILIPS_PAL,
 1148                         PHILIPS_SECAM, PHILIPS_SECAM,
 1149                         PHILIPS_SECAM, PHILIPS_PAL};
 1150 
 1151                 int tuner_0_fm_table[] = {
 1152                         PHILIPS_FR1236_NTSC,  PHILIPS_FR1216_PAL,
 1153                         PHILIPS_FR1216_PAL,   PHILIPS_FR1216_PAL,
 1154                         PHILIPS_FR1216_PAL,   PHILIPS_FR1216_PAL,
 1155                         PHILIPS_FR1236_SECAM, PHILIPS_FR1236_SECAM,
 1156                         PHILIPS_FR1236_SECAM, PHILIPS_FR1216_PAL};
 1157 
 1158                 int tuner_1_table[] = {
 1159                         TEMIC_NTSC,  TEMIC_PAL,   TEMIC_PAL,
 1160                         TEMIC_PAL,   TEMIC_PAL,   TEMIC_PAL,
 1161                         TEMIC_SECAM, TEMIC_SECAM, TEMIC_SECAM,
 1162                         TEMIC_PAL};
 1163 
 1164 
 1165                 /* Extract information from the EEPROM data */
 1166                 readEEProm(bktr, 0, 128, (u_char *) &eeprom );
 1167 
 1168                 tuner_make   = (eeprom[0x41] & 0x7);
 1169                 tuner_tv_fm  = (eeprom[0x41] & 0x18) >> 3;
 1170                 tuner_format = (eeprom[0x42] & 0xf0) >> 4;
 1171 
 1172                 /* Treat tuner make 0 (Philips) and make 2 (LG) the same */
 1173                 if ( ((tuner_make == 0) || (tuner_make == 2))
 1174                     && (tuner_format <= 9) && (tuner_tv_fm == 0) ) {
 1175                         tuner = tuner_0_table[tuner_format];
 1176                         select_tuner( bktr, tuner );
 1177                         goto checkDBX;
 1178                 }
 1179 
 1180                 if ( ((tuner_make == 0) || (tuner_make == 2))
 1181                     && (tuner_format <= 9) && (tuner_tv_fm == 1) ) {
 1182                         tuner = tuner_0_fm_table[tuner_format];
 1183                         select_tuner( bktr, tuner );
 1184                         goto checkDBX;
 1185                 }
 1186 
 1187                 if ( (tuner_make == 1) && (tuner_format <= 9) ) {
 1188                         tuner = tuner_1_table[tuner_format];
 1189                         select_tuner( bktr, tuner );
 1190                         goto checkDBX;
 1191                 }
 1192 
 1193                 printf("%s: Warning - Unknown AVerMedia Tuner Make %d Format %d\n",
 1194                         bktr_name(bktr), tuner_make, tuner_format);
 1195             }
 1196             break;
 1197 
 1198         case CARD_LEADTEK:
 1199 #if defined(BKTR_SYSTEM_DEFAULT) && BKTR_SYSTEM_DEFAULT == BROOKTREE_PAL
 1200             select_tuner( bktr, PHILIPS_FR1216_PAL );
 1201 #else
 1202             select_tuner( bktr, PHILIPS_FR1236_NTSC );
 1203 #endif
 1204             goto checkDBX;
 1205             break;
 1206 
 1207         case CARD_IO_BCTV3:
 1208             select_tuner( bktr, ALPS_TSCH5 ); /* ALPS_TSCH6, in fact. */
 1209             goto checkDBX;
 1210             break;
 1211 
 1212         case CARD_TERRATVALUE:
 1213             select_tuner( bktr, PHILIPS_PAL); /* Phlips PAL tuner */
 1214             goto checkDBX;
 1215             break;
 1216 
 1217         } /* end switch(card) */
 1218 
 1219 
 1220         /* At this point, a goto checkDBX has not occured */
 1221         /* We have not been able to select a Tuner */
 1222         /* Some cards make use of the tuner address to */
 1223         /* identify the make/model of tuner */
 1224 
 1225         /* At address 0xc0/0xc1 we often find a TEMIC NTSC */
 1226         if ( i2cRead( bktr, 0xc1 ) != ABSENT ) {
 1227             select_tuner( bktr, TEMIC_NTSC );
 1228             goto checkDBX;
 1229         }
 1230   
 1231         /* At address 0xc6/0xc7 we often find a PHILIPS NTSC Tuner */
 1232         if ( i2cRead( bktr, 0xc7 ) != ABSENT ) {
 1233             select_tuner( bktr, PHILIPS_NTSC );
 1234             goto checkDBX;
 1235         }
 1236 
 1237         /* Address 0xc2/0xc3 is default (or common address) for several */
 1238         /* tuners and we cannot tell which is which. */
 1239         /* And for all other tuner i2c addresses, select the default */
 1240         select_tuner( bktr, DEFAULT_TUNER );
 1241 
 1242 
 1243 checkDBX:
 1244 #if defined( BKTR_OVERRIDE_DBX )
 1245         bktr->card.dbx = BKTR_OVERRIDE_DBX;
 1246         goto checkMSP;
 1247 #endif
 1248    /* Check for i2c devices */
 1249         if (!any_i2c_devices) {
 1250                 goto checkMSP;
 1251         }
 1252 
 1253         /* probe for BTSC (dbx) chip */
 1254         if ( i2cRead( bktr, TDA9850_RADDR ) != ABSENT )
 1255                 bktr->card.dbx = 1;
 1256 
 1257 checkMSP:
 1258         /* If this is a Hauppauge Bt878 card, we need to enable the
 1259          * MSP 34xx audio chip. 
 1260          * If this is a Hauppauge Bt848 card, reset the MSP device.
 1261          * The MSP reset line is wired to GPIO pin 5. On Bt878 cards a pulldown
 1262          * resistor holds the device in reset until we set GPIO pin 5.
 1263          */
 1264 
 1265         /* Optionally skip the MSP reset. This is handy if you initialise the
 1266          * MSP audio in another operating system (eg Windows) first and then
 1267          * do a soft reboot.
 1268          */
 1269 
 1270 #ifndef BKTR_NO_MSP_RESET
 1271         if (card == CARD_HAUPPAUGE) {
 1272             OUTL(bktr, BKTR_GPIO_OUT_EN, INL(bktr, BKTR_GPIO_OUT_EN) | (1<<5));
 1273             OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
 1274             DELAY(2500); /* wait 2.5ms */
 1275             OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) & ~(1<<5)); /* write '' */
 1276             DELAY(2500); /* wait 2.5ms */
 1277             OUTL(bktr, BKTR_GPIO_DATA, INL(bktr, BKTR_GPIO_DATA) | (1<<5));  /* write '1' */
 1278             DELAY(2500); /* wait 2.5ms */
 1279         }
 1280 #endif
 1281 
 1282 #if defined( BKTR_OVERRIDE_MSP )
 1283         bktr->card.msp3400c = BKTR_OVERRIDE_MSP;
 1284         goto checkMSPEnd;
 1285 #endif
 1286 
 1287         /* Check for i2c devices */
 1288         if (!any_i2c_devices) {
 1289                 goto checkMSPEnd;
 1290         }
 1291 
 1292         if ( i2cRead( bktr, MSP3400C_RADDR ) != ABSENT ) {
 1293                 bktr->card.msp3400c = 1;
 1294         }
 1295 
 1296 checkMSPEnd:
 1297 
 1298         if (bktr->card.msp3400c) {
 1299                 bktr->msp_addr = MSP3400C_WADDR;
 1300                 msp_read_id( bktr );
 1301                 printf("%s: Detected a MSP%s at 0x%x\n", bktr_name(bktr),
 1302                        bktr->msp_version_string,
 1303                        bktr->msp_addr);
 1304 
 1305         }
 1306 
 1307 /* Check for Dolby Surround Sound DPL3518A sound chip */
 1308         if ( i2cRead( bktr, DPL3518A_RADDR ) != ABSENT ) {
 1309                 bktr->card.dpl3518a = 1;
 1310         }
 1311 
 1312         if (bktr->card.dpl3518a) {
 1313                 bktr->dpl_addr = DPL3518A_WADDR;
 1314                 dpl_read_id( bktr );
 1315                 printf("%s: Detected a DPL%s at 0x%x\n", bktr_name(bktr),
 1316                        bktr->dpl_version_string,
 1317                        bktr->dpl_addr);
 1318         }
 1319 
 1320 /* Start of Check Remote */
 1321         /* Check for the Hauppauge IR Remote Control */
 1322         /* If there is an external unit, the internal will be ignored */
 1323 
 1324         bktr->remote_control = 0; /* initial value */
 1325 
 1326         if (any_i2c_devices) {
 1327             if (i2cRead( bktr, HAUP_REMOTE_EXT_RADDR ) != ABSENT )
 1328                 {
 1329                 bktr->remote_control      = 1;
 1330                 bktr->remote_control_addr = HAUP_REMOTE_EXT_RADDR;
 1331                 }
 1332             else if (i2cRead( bktr, HAUP_REMOTE_INT_RADDR ) != ABSENT )
 1333                 {
 1334                 bktr->remote_control      = 1;
 1335                 bktr->remote_control_addr = HAUP_REMOTE_INT_RADDR;
 1336                 }
 1337 
 1338         }
 1339         /* If a remote control is found, poll it 5 times to turn off the LED */
 1340         if (bktr->remote_control) {
 1341                 int i;
 1342                 for (i=0; i<5; i++)
 1343                         i2cRead( bktr, bktr->remote_control_addr );
 1344         }
 1345 /* End of Check Remote */
 1346 
 1347 #if defined( BKTR_USE_PLL )
 1348         bktr->xtal_pll_mode = BT848_USE_PLL;
 1349         goto checkPLLEnd;
 1350 #endif
 1351         /* Default is to use XTALS and not PLL mode */
 1352         bktr->xtal_pll_mode = BT848_USE_XTALS;
 1353 
 1354         /* Enable PLL mode for OSPREY users */
 1355         if (card == CARD_OSPREY)
 1356                 bktr->xtal_pll_mode = BT848_USE_PLL;
 1357 
 1358         /* Enable PLL mode for Video Highway Xtreme users */
 1359         if (card == CARD_VIDEO_HIGHWAY_XTREME)
 1360                 bktr->xtal_pll_mode = BT848_USE_PLL;
 1361 
 1362 
 1363         /* Most (perhaps all) Bt878 cards need to be switched to PLL mode */
 1364         /* as they only fit the NTSC crystal to their cards */
 1365         /* Default to enabling PLL mode for all Bt878/879 cards */
 1366 
 1367         if ((bktr->id==BROOKTREE_878 || bktr->id==BROOKTREE_879) )
 1368                 bktr->xtal_pll_mode = BT848_USE_PLL;
 1369 
 1370 
 1371 #if defined( BKTR_USE_PLL )
 1372 checkPLLEnd:
 1373 #endif
 1374 
 1375 
 1376         bktr->card.tuner_pllAddr = tuner_i2c_address;
 1377 
 1378         if ( verbose ) {
 1379                 printf( "%s: %s", bktr_name(bktr), bktr->card.name );
 1380                 if ( bktr->card.tuner )
 1381                         printf( ", %s tuner", bktr->card.tuner->name );
 1382                 if ( bktr->card.dbx )
 1383                         printf( ", dbx stereo" );
 1384                 if ( bktr->card.msp3400c )
 1385                         printf( ", msp3400c stereo" );
 1386                 if ( bktr->card.dpl3518a )
 1387                         printf( ", dpl3518a dolby" );
 1388                 if ( bktr->remote_control )
 1389                         printf( ", remote control" );
 1390                 printf( ".\n" );
 1391         }
 1392 }
 1393 
 1394 #undef ABSENT

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