OSDictionary *
AppleIntelPIIXATARoot::createLegacyModeChannelInfo( UInt32 ataChannel,
UInt32 channelMode )
{
UInt16 cmdPort = 0;
UInt16 ctrPort = 0;
UInt8 irq = 0;
switch ( ataChannel )
{
case kPIIX_CHANNEL_PRIMARY:
cmdPort = kPIIX_P_CMD_ADDR;
ctrPort = kPIIX_P_CTL_ADDR;
irq = kPIIX_P_IRQ;
break;
case kPIIX_CHANNEL_SECONDARY:
cmdPort = kPIIX_S_CMD_ADDR;
ctrPort = kPIIX_S_CTL_ADDR;
irq = kPIIX_S_IRQ;
break;
}
return createChannelInfo( ataChannel, channelMode,
cmdPort, ctrPort, irq );
}
OSDictionary *
AppleIntelPIIXATARoot::createNativeModeChannelInfo( UInt32 ataChannel,
UInt32 channelMode )
{
UInt8 pi = _provider->configRead8( kPIIX_PCI_PI );
UInt16 cmdPort = 0;
UInt16 ctrPort = 0;
switch ( ataChannel )
{
case kPIIX_CHANNEL_PRIMARY:
if ((pi & kPIIX_PCI_PRI_NATIVE_MASK) == kPIIX_PCI_PRI_NATIVE_MASK)
{
// Primary channel native mode supported and enabled.
cmdPort = _provider->configRead16( kIOPCIConfigBaseAddress0 );
ctrPort = _provider->configRead16( kIOPCIConfigBaseAddress1 );
cmdPort &= ~0x1; // clear PCI I/O space indicator bit
ctrPort &= ~0x1;
// Programming interface byte indicate that native mode
// is supported and active, but the controller has been
// assigned legacy ranges. Force legacy mode configuration
// which is safest. PCI INT# interrupts are not wired
// properly for some machines in this state.
if ( cmdPort == kPIIX_P_CMD_ADDR &&
ctrPort == kPIIX_P_CTL_ADDR )
{
cmdPort = ctrPort = 0;
}
}
break;
case kPIIX_CHANNEL_SECONDARY:
if ((pi & kPIIX_PCI_SEC_NATIVE_MASK) == kPIIX_PCI_SEC_NATIVE_MASK)
{
cmdPort = _provider->configRead16( kIOPCIConfigBaseAddress2 );
ctrPort = _provider->configRead16( kIOPCIConfigBaseAddress3 );
cmdPort &= ~0x1; // clear PCI I/O space indicator bit
ctrPort &= ~0x1;
if ( cmdPort == kPIIX_S_CMD_ADDR &&
ctrPort == kPIIX_S_CTL_ADDR )
{
cmdPort = ctrPort = 0;
}
}
break;
}
if ( cmdPort && ctrPort )
return createChannelInfo( ataChannel, channelMode, cmdPort, ctrPort,
_provider->configRead8( kIOPCIConfigInterruptLine ) );
else
return 0;
}
OSDictionary *
AppleNForceATARoot::createNativeModeChannelInfo( UInt32 ataChannel )
{
UInt8 pi = fProvider->configRead8( PCI_PI );
UInt16 cmdPort = 0;
UInt16 ctrPort = 0;
// Force native mode configuration for SATA.
//if (fIsSATA) pi = 0xFF;
switch ( ataChannel )
{
case PRI_CHANNEL_ID:
if ( pi & 0x3 )
{
cmdPort = fProvider->configRead16( kIOPCIConfigBaseAddress0 );
ctrPort = fProvider->configRead16( kIOPCIConfigBaseAddress1 );
cmdPort &= ~0x1; // clear PCI I/O space indicator bit
ctrPort &= ~0x1;
// Programming interface byte indicate that native mode
// is supported and active, but the controller has been
// assigned legacy ranges. Force legacy mode configuration
// which is safest. PCI INT# interrupts are not wired
// properly for some machines in this state.
if ( cmdPort == PRI_CMD_ADDR &&
ctrPort == PRI_CTR_ADDR )
{
cmdPort = ctrPort = 0;
}
}
break;
case SEC_CHANNEL_ID:
if ( pi & 0xc )
{
cmdPort = fProvider->configRead16( kIOPCIConfigBaseAddress2 );
ctrPort = fProvider->configRead16( kIOPCIConfigBaseAddress3 );
cmdPort &= ~0x1; // clear PCI I/O space indicator bit
ctrPort &= ~0x1;
if ( cmdPort == SEC_CMD_ADDR &&
ctrPort == SEC_CTR_ADDR )
{
cmdPort = ctrPort = 0;
}
}
break;
}
if (cmdPort && ctrPort)
return createChannelInfo( ataChannel, cmdPort, ctrPort,
fProvider->configRead8(kIOPCIConfigInterruptLine) );
else
return 0;
}
OSDictionary *
AppleNForceATARoot::createLegacyModeChannelInfo( UInt32 ataChannel )
{
UInt16 cmdPort = 0;
UInt16 ctrPort = 0;
UInt8 isaIrq = 0;
switch ( ataChannel )
{
case PRI_CHANNEL_ID:
cmdPort = PRI_CMD_ADDR;
ctrPort = PRI_CTR_ADDR;
isaIrq = PRI_ISA_IRQ;
break;
case SEC_CHANNEL_ID:
cmdPort = SEC_CMD_ADDR;
ctrPort = SEC_CTR_ADDR;
isaIrq = SEC_ISA_IRQ;
break;
}
return createChannelInfo( ataChannel, cmdPort, ctrPort, isaIrq );
}