1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/bootstrap.c	Sat Aug 21 06:15:49 2004 +0000
     1.3 @@ -0,0 +1,99 @@
     1.4 +#include <stdlib.h>
     1.5 +#include <stdint.h>
     1.6 +#include <string.h>
     1.7 +#include <stdio.h>
     1.8 +#include <unistd.h>
     1.9 +#include <fcntl.h>
    1.10 +#include <errno.h>
    1.11 +#include <assert.h>
    1.12 +#include <sys/stat.h>
    1.13 +#include <sys/mman.h>
    1.14 +#include "ipbin.h"
    1.15 +#include "gui.h"
    1.16 +
    1.17 +static char *dc_peripherals[] = { "Uses WinCE", "Unknown (0x0000002)",
    1.18 +                                  "Unknown (0x0000004)", "Unknown (0x0000008)",
    1.19 +                                  "VGA Box", "Unknown (0x0000020)",
    1.20 +                                  "Unknown (0x0000040)", "Unknown (0x0000080)",
    1.21 +                                  "Other Expansions", "Puru Puru pack",
    1.22 +                                  "Mike", "Memory card",
    1.23 +                                  "Basic controller", "C button",
    1.24 +                                  "D button", "X button",
    1.25 +                                  "Y button", "Z button",
    1.26 +                                  "Expanded direction buttons",
    1.27 +                                  "Analog R trigger", "Analog L trigger",
    1.28 +                                  "Analog horizontal", "Analog vertical",
    1.29 +                                  "Expanded analog horizontal",
    1.30 +                                  "Expanded analog vertical",
    1.31 +                                  "Gun", "Keyboard", "Mouse" };
    1.32 +
    1.33 +static uint32_t compute_crc16( dc_bootstrap_head_t h )
    1.34 +{
    1.35 +    /* Note: Algorithm taken from http://mc.pp.se/dc/ip0000.bin.html */
    1.36 +    uint32_t i, c, n = 0xffff;
    1.37 +    char *data = h->product_id;
    1.38 +    for (i = 0; i < 16; i++)
    1.39 +    {
    1.40 +        n ^= (data[i]<<8);
    1.41 +        for (c = 0; c < 8; c++)
    1.42 +            if (n & 0x8000)
    1.43 +                n = (n << 1) ^ 4129;
    1.44 +            else
    1.45 +                n = (n << 1);
    1.46 +    }
    1.47 +    return n & 0xffff;
    1.48 +}
    1.49 +
    1.50 +void parse_ipbin( char *data )
    1.51 +{
    1.52 +    struct dc_bootstrap_head *head;
    1.53 +    int i, got, periph, crc, hcrc;
    1.54 +    char *prot_symbols;
    1.55 +    char buf[512];
    1.56 +
    1.57 +    /* Dump out the bootstrap metadata table */
    1.58 +    head = (struct dc_bootstrap_head *)data;
    1.59 +    prot_symbols = ((char *)data) + 0x3700;
    1.60 +    memcpy( buf, head->product_name, 128 );
    1.61 +    for( i=127; i>0 && buf[i] == ' '; i-- );
    1.62 +    buf[i] = '\0';
    1.63 +    periph = strtol( head->peripherals, NULL, 16 );
    1.64 +    INFO( "Bootstrap loaded, Name: %s   Author: %-16.16s",
    1.65 +          buf, head->vendor_id );
    1.66 +    sprintf( buf, "%4.4s", head->crc );
    1.67 +    crc = compute_crc16(head);
    1.68 +    hcrc = strtol( buf, NULL, 16 );
    1.69 +    emit( crc == hcrc ? EMIT_INFO : EMIT_WARN, MODULE_ID, 
    1.70 +          "  Header CRC:   %04X (Computed %04X)", hcrc, crc );
    1.71 +    INFO( "  Boot File:    %-16.16s", head->boot_file );
    1.72 +    INFO( "  Product ID:   %-10.10s   Product Ver: %-6.6s   Date: %-8.8s",
    1.73 +          head->product_id, head->product_ver, head->product_date );
    1.74 +    INFO( "  Disc ID:      %-11.11s  Regions:      %-8.8s   Peripherals: %07X",
    1.75 +          head->gdrom_id, head->regions, periph );
    1.76 +    strcpy( buf, "     Supports: " );
    1.77 +    got = 0;
    1.78 +    for( i=0; i<28; i++ ) {
    1.79 +        if( periph & (1<<i) ){
    1.80 +            if( got ) strcat( buf, ", " );
    1.81 +            strcat( buf, dc_peripherals[i] );
    1.82 +            got = 1;
    1.83 +        }
    1.84 +        if( i == 11 ) i = 23; /* Skip 8-23 */
    1.85 +    }
    1.86 +    INFO( buf, NULL );
    1.87 +    strcpy( buf, "     Requires: " );
    1.88 +    got = 0;
    1.89 +    for( i=12; i<24; i++ ) {
    1.90 +        if( periph & (1<<i) ) {
    1.91 +            if( got ) strcat( buf, ", " );
    1.92 +            strcat( buf, dc_peripherals[i] );
    1.93 +            got = 1;
    1.94 +        }
    1.95 +    }
    1.96 +    INFO( buf, NULL );
    1.97 +#if 0
    1.98 +    INFO( "  Area protection symbols:", NULL );
    1.99 +    for( i=0; i<8; i++ )
   1.100 +        INFO( "    %d: %28.28s", i, &prot_symbols[(i*32)+4] );
   1.101 +#endif
   1.102 +}