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| author | SND\shalma_cp <SND\shalma_cp@e17a0e51-4ae3-4d35-97c3-1a29b211df97> | 2010-09-05 01:17:49 +0000 |
|---|---|---|
| committer | SND\shalma_cp <SND\shalma_cp@e17a0e51-4ae3-4d35-97c3-1a29b211df97> | 2010-09-05 01:17:49 +0000 |
| commit | d9465c9c36910e177dfeb32ed73cac937f40edd7 (patch) | |
| tree | 038392984685f5f946474fde4417609d8f222b18 /libpcsxcore | |
| parent | dcc46e2d3011f7de48d6c16144088d1f3d4ed2db (diff) | |
| download | pcsxr-d9465c9c36910e177dfeb32ed73cac937f40edd7.tar.gz | |
GameShark / Action Replay CDX - dongle partially supported. Goes in-game to CD swap points.
git-svn-id: https://pcsxr.svn.codeplex.com/svn/pcsxr@56825 e17a0e51-4ae3-4d35-97c3-1a29b211df97
Diffstat (limited to 'libpcsxcore')
| -rw-r--r-- | libpcsxcore/sio.c | 313 |
1 files changed, 312 insertions, 1 deletions
diff --git a/libpcsxcore/sio.c b/libpcsxcore/sio.c index ab1f226d..110c2934 100644 --- a/libpcsxcore/sio.c +++ b/libpcsxcore/sio.c @@ -62,6 +62,7 @@ static unsigned int parp; static unsigned int mcdst, rdwr; static unsigned char adrH, adrL; static unsigned int padst; +static unsigned int gsdonglest;
char Mcd1Data[MCD_SIZE], Mcd2Data[MCD_SIZE]; @@ -77,7 +78,28 @@ char Mcd1Data[MCD_SIZE], Mcd2Data[MCD_SIZE]; // 4us * 8bits = (PSXCLK / 1000000) * 32; (linuzappz) // TODO: add SioModePrescaler and BaudReg #define SIO_CYCLES 535 - +
+// ePSXe 1.7.0
+//#define SIO_CYCLES 635
+ +unsigned char reverse_8( unsigned char bits )
+{
+ unsigned char tmp;
+ int lcv;
+
+ tmp = 0;
+ for( lcv = 0; lcv < 8; lcv++ )
+ {
+ tmp >>= 1;
+ tmp |= (bits & 0x80);
+
+ bits <<= 1;
+ }
+
+ return tmp;
+}
+
+
void sioWrite8(unsigned char value) { #ifdef PAD_LOG PAD_LOG("sio write8 %x\n", value); @@ -210,6 +232,282 @@ void sioWrite8(unsigned char value) { return; } +
+ /*
+ GameShark CDX 3.3
+
+ ae - be - ef - 04 + [00]
+ ae - be - ef - 01 + 00 + [00] * $1000
+ ae - be - ef - 01 + 42 + [00] * $1000
+ ae - be - ef - 03 + 01,01,1f,e3,85,ae,d1,28 + [00] * 4
+ */
+ switch (gsdonglest) {
+ // main command loop
+ case 1:
+ SIO_INT( SIO_CYCLES );
+
+ // GS CDX 3.3
+ // - unknown output
+
+ // reset device when fail?
+ if( value == 0xae )
+ {
+ StatReg |= RX_RDY;
+
+ parp = 0;
+ bufcount = parp;
+ }
+
+
+ // GS CDX 3.3
+ else if( value == 0xbe )
+ {
+ StatReg |= RX_RDY;
+
+ parp = 0;
+ bufcount = parp;
+
+
+ buf[0] = reverse_8( 0xde );
+ }
+
+
+ // GS CDX 3.3
+ else if( value == 0xef )
+ {
+ StatReg |= RX_RDY;
+
+ parp = 0;
+ bufcount = parp;
+
+
+ buf[0] = reverse_8( 0xad );
+ }
+
+
+ // GS CDX 3.3 [1 in + $1000 out]
+ else if( value == 0x01 )
+ {
+ StatReg |= RX_RDY;
+
+ parp = 0;
+ bufcount = parp;
+
+
+ // $00 = 0000 0000
+ // - (reverse) 0000 0000
+ //buf[0] = 0x00;
+ //gsdonglest = 4;
+
+ // Free dongle - feature not supported
+ buf[0] = 0xff;
+
+ gsdonglest = 0;
+ }
+
+
+ // GS CDX 3.3 [1 in + $1000 in]
+ else if( value == 0x02 )
+ {
+ StatReg |= RX_RDY;
+
+ parp = 0;
+ bufcount = parp;
+
+
+ // $00 = 0000 0000
+ // - (reverse) 0000 0000
+ //buf[0] = 0x00;
+ //gsdonglest = 3;
+
+ // Free dongle - feature not supported
+ buf[0] = 0xff;
+
+ gsdonglest = 0;
+ }
+
+
+ // GS CDX 3.3 [8 in, 4 out]
+ else if( value == 0x03 )
+ {
+ StatReg |= RX_RDY;
+
+ parp = 0;
+ bufcount = parp;
+
+ // $00 = 0000 0000
+ // - (reverse) 0000 0000
+ buf[0] = 0x00;
+
+ gsdonglest = 2;
+ }
+
+
+ // GS CDX 3.3 [out 1]
+ else if( value == 0x04 )
+ {
+ StatReg |= RX_RDY;
+
+ parp = 0;
+ bufcount = parp;
+
+
+ // $00 = 0000 0000
+ // - (reverse) 0000 0000
+ //buf[0] = 0x00;
+ //gsdonglest = 5;
+
+ // Free dongle - feature not supported
+ buf[0] = 0xff;
+ }
+ else
+ {
+ // ERROR!!
+
+ StatReg |= RX_RDY;
+
+ parp = 0;
+ bufcount = parp;
+ buf[0] = 0xff;
+
+ gsdonglest = 0;
+ }
+
+ return;
+
+
+ // be - ef - 03
+ case 2:
+ SIO_INT( SIO_CYCLES );
+ StatReg |= RX_RDY;
+
+ // command start
+ if( parp < 8 )
+ {
+ // read 2 (?,?) + 4 (DATA?) + 2 (CRC?)
+ buf[ parp ] = value;
+ parp++;
+ }
+
+ if( parp == 8 )
+ {
+ // now write 4 bytes via -FOUR- $00 writes
+ parp = 8;
+ bufcount = 12;
+
+ // GS CDX [magic key]
+ if( buf[0] == 0x01 && buf[1] == 0x01 &&
+ buf[2] == 0x12 && buf[3] == 0x34 &&
+ buf[4] == 0x56 && buf[5] == 0x78 &&
+ buf[6] == 0xae && buf[7] == 0x0f )
+ {
+ buf[9] = reverse_8( 0x3e );
+ buf[10] = reverse_8( 0xa0 );
+ buf[11] = reverse_8( 0x40 );
+ buf[12] = reverse_8( 0x29 );
+ }
+ else
+ {
+ // dummy value
+ buf[9] = reverse_8( 0xfa );
+ buf[10] = reverse_8( 0xde );
+ buf[11] = reverse_8( 0x21 );
+ buf[12] = reverse_8( 0x97 );
+ }
+
+ // flush bytes -> done
+ gsdonglest = 255;
+ }
+ return;
+
+
+ // be - ef - 02
+ case 3:
+ SIO_INT(1);
+ StatReg |= RX_RDY;
+
+ // command start
+ if( parp < 0x1000+1 )
+ {
+ // read 1 byte
+ buf[ parp % 256 ] = value;
+ parp++;
+ }
+
+ if( parp == 0x1001 )
+ {
+ // done
+ gsdonglest = 0;
+ }
+ return;
+
+
+ // be - ef - 01
+ case 4:
+ SIO_INT(1);
+ StatReg |= RX_RDY;
+
+
+ // read 1 byte
+ buf[ parp ] = value;
+
+
+ // write 0x1000 bytes
+ bufcount = 0x1000;
+
+ gsdonglest = 255;
+ return;
+
+
+ // be - ef - 04
+ case 5:
+ if( value == 0x00 )
+ {
+ SIO_INT( SIO_CYCLES );
+ StatReg |= RX_RDY;
+
+
+ // read 1 byte
+ parp = 0;
+ bufcount = parp;
+
+ buf[ 0 ] = 10;
+
+
+ // done already
+ gsdonglest = 0;
+ }
+ return;
+
+
+ // flush bytes -> done
+ case 255:
+ if( value == 0x00 )
+ {
+ //SIO_INT( SIO_CYCLES );
+ SIO_INT(1);
+ StatReg |= RX_RDY;
+
+ parp++;
+ if( parp == bufcount )
+ {
+ gsdonglest = 0;
+ }
+ }
+ else
+ {
+ // ERROR!!
+ StatReg |= RX_RDY;
+
+ parp = 0;
+ bufcount = parp;
+ buf[0] = 0xff;
+
+ gsdonglest = 0;
+ }
+ return;
+ }
+
switch (value) { case 0x01: // start pad StatReg |= RX_RDY; // Transfer is Ready @@ -265,6 +563,19 @@ void sioWrite8(unsigned char value) { rdwr = 0; SIO_INT(SIO_CYCLES); return; + case 0xae: // GameShark CDX - start dongle
+ StatReg |= RX_RDY;
+ gsdonglest = 1;
+
+ parp = 0;
+ bufcount = parp;
+
+ SIO_INT( SIO_CYCLES );
+ return;
+
+ default: // no hardware found
+ StatReg |= RX_RDY;
+ return;
} } |