PU8 C_DM9000::DeviceReadString(
PU8 ptrBuffer,
int nLength)
{
int count;
count = (nLength + m_nIoMaxPad) / m_nIoMode;
// select port to be read from
ENTER_CRITICAL_SECTION
VALIDATE_ADDR_PORT(DM9_MRCMD);
switch (m_nIoMode)
{
case BYTE_MODE:
NdisRawReadPortBufferUchar(
m_szCurrentSettings[SID_PORT_BASE_ADDRESS] + DM9000_DATA_OFFSET,
ptrBuffer,count);
break;
case WORD_MODE:
NdisRawReadPortBufferUshort(
m_szCurrentSettings[SID_PORT_BASE_ADDRESS] + DM9000_DATA_OFFSET,
(PU16)ptrBuffer,count);
break;
case DWORD_MODE:
NdisRawReadPortBufferUlong(
m_szCurrentSettings[SID_PORT_BASE_ADDRESS] + DM9000_DATA_OFFSET,
(PU32)ptrBuffer,count);
break;
default:
break;
} // of switch
LEAVE_CRITICAL_SECTION
return ptrBuffer;
}
BOOLEAN
LtFirmInitialize(
IN PLT_ADAPTER Adapter,
IN UCHAR SuggestedNodeId
)
/*++
Routine Description:
This routine initializes the card, downloads the firmware to it.
Arguments:
Adapter : Pointer to the adapter structure.
Return Value:
TRUE : If successful, false otherwise
--*/
{
PUCHAR Firmware;
UINT FirmwareLen;
UINT RetryCount;
UCHAR Data;
BOOLEAN Result = FALSE;
// Clear the request Latch
NdisRawReadPortUchar(XFER_PORT, &Data);
// Clear the TX_READY FLOP
NdisRawWritePortUchar(XFER_PORT, (UCHAR)0);
// Reset the card.
NdisRawWritePortUchar(RESET_PORT, (UCHAR)0);
NdisStallExecution(LT_FIRM_INIT_STALL_TIME*5);
for (RetryCount = 0; RetryCount < MAX_READ_RETRY_COUNT; RetryCount++)
{
// Get Card Status.
NdisRawReadPortUchar(SC_PORT, &Data);
if (Data & TX_READY)
{
break;
}
else DBGPRINT(DBG_COMP_INIT, DBG_LEVEL_WARN,
("LtFirmInitialize: Waiting for card ready SC_PORT %x\n", Data));
NdisStallExecution(LT_FIRM_INIT_STALL_TIME);
}
// BUGBUG:
// !!!!!!
// For DAYNA, it will not be ready at this point. DCH is going to
// send information to fix this.
do
{
if (RetryCount == MAX_READ_RETRY_COUNT)
{
LOGERROR(
Adapter->NdisAdapterHandle,
NDIS_ERROR_CODE_HARDWARE_FAILURE);
DBGPRINT(DBG_COMP_INIT, DBG_LEVEL_FATAL,
("LtFirmInitialize: Card Not Ready after Reset\n"));
break;
}
// Copy the firmware to the card.
Firmware = LtMicroCode;
FirmwareLen = sizeof(LtMicroCode);
DBGPRINT(DBG_COMP_INIT, DBG_LEVEL_INFO,
("LtFirmInitialize: DownLoad %d bytes of firmware\n", FirmwareLen));
// Well... the card is alive and well and in a reset state.
// Next we need to output the first byte of the firmware and
// check for TX_READY.
NdisRawWritePortUchar(XFER_PORT, *Firmware);
DBGPRINT(DBG_COMP_INIT, DBG_LEVEL_INFO,
("LtFirmInitialize: First byte of Firmware on card\n"));
NdisRawReadPortUchar(SC_PORT, &Data);
if (Data & TX_READY)
{
DBGPRINT(DBG_COMP_INIT, DBG_LEVEL_FATAL,
("LtFirmInitialize: Card Not Ready During Download\n"));
LOGERROR(
Adapter->NdisAdapterHandle,
NDIS_ERROR_CODE_HARDWARE_FAILURE);
break;
}
// Skip over the first byte because it already out there.
Firmware ++;
FirmwareLen --;
NdisRawWritePortBufferUchar(XFER_PORT,
Firmware,
FirmwareLen);
// Tell the card to start
NdisRawReadPortUchar(XFER_PORT, &Data);
// Wait for the card to start
for (RetryCount = 0; RetryCount < MAX_START_RETRY_COUNT; RetryCount++)
{
NdisStallExecution(LT_FIRM_INIT_STALL_TIME);
// Get Status
NdisRawReadPortUchar(SC_PORT, &Data);
DBGPRINT(DBG_COMP_INIT, DBG_LEVEL_WARN,
("LtFirmInitialize: Waiting for start - SC_PORT Data %x\n",
(UCHAR)Data));
if (Data & RX_READY)
{
break;
}
}
// !!! This seems to be the only way the MCA card works according to
// !!! Dave Hornbaker. It seems that the MCA card doesnt get ready at
// !!! this point, but works later on.
if (RetryCount == MAX_START_RETRY_COUNT)
{
ASSERT(Adapter->BusType != NdisInterfaceMca);
DBGPRINT(DBG_COMP_INIT, DBG_LEVEL_FATAL,
("LtFirmInitialize: Card Not Ready, could not get status\n"));
LOGERROR(
Adapter->NdisAdapterHandle,
NDIS_ERROR_CODE_INVALID_VALUE_FROM_ADAPTER);
break;
}
// Clear the initial ready signal.
NdisRawReadPortUchar(XFER_PORT, &Data);
// Now loop here for a finite time till the card acquires a node id.
// If it fails to do so in the specified time, fail the load.
if (!LtInitGetAddressSetPoll(Adapter, SuggestedNodeId))
{
break;
}
// We need to catch the card fast after it acquire the node id and before it
// receives any packets. If it does receive any packets, then ask it acquire
// the node id again. The stall happens ONLY IF A PACKET IS RECVD.
for (RetryCount = 0; RetryCount < MAX_START_RETRY_COUNT*200; RetryCount++)
{
USHORT ResponseLength;
UCHAR ResponseType;
LT_INIT_RESPONSE InitPacket;
// Check for receive data
NdisRawReadPortUchar(SC_PORT, &Data);
if (Data & RX_READY)
{
// Get the length of the response on the card
NdisRawReadPortUchar(XFER_PORT, &Data);
ResponseLength = (USHORT)(Data & 0xFF);
NdisRawReadPortUchar(XFER_PORT, &Data);
ResponseLength |= (Data << 8);
// Now get the IO code.
NdisRawReadPortUchar(XFER_PORT, &ResponseType);
DBGPRINT(DBG_COMP_INIT, DBG_LEVEL_INFO,
("LtFirmInitialize: RespType = %x, RespLength = %d\n",
ResponseType, ResponseLength));
if ((ResponseType == LT_RSP_LAP_INIT) &&
(ResponseLength == sizeof(LT_INIT_RESPONSE)))
{
NdisRawReadPortBufferUchar(XFER_PORT,
(PUCHAR)&InitPacket,
ResponseLength);
Adapter->NodeId = InitPacket.NodeId;
Adapter->Flags |= ADAPTER_NODE_ID_VALID;
// This should start off a worker thread to write the
// node id into the pram.
// BUGBUG: Implement using worker threads.
// LtRegWritePramNodeId(Adapter);
DBGPRINT(DBG_COMP_INIT, DBG_LEVEL_INFO,
("LtFirmInitailize: Node id acquired %x\n", InitPacket.NodeId));
break;
}
DBGPRINT(DBG_COMP_INIT, DBG_LEVEL_WARN,
("LtFirmInitailize: Node id not valid yet !!\n"));
// Suck in the packet and throw it away
while (ResponseLength-- > 0)
{
NdisRawReadPortUchar(XFER_PORT, &Data);
}
// The response was probably over-written by incoming packet.
// Try again.
NdisStallExecution(LT_FIRM_INIT_STALL_TIME);
DBGPRINT(DBG_COMP_INIT, DBG_LEVEL_WARN,
("LtFirmInitailize: Re-acquire node after packet recv\n"));
if (!LtInitGetAddressSetPoll(Adapter, SuggestedNodeId))
{
break;
}
}
else
{
DBGPRINT(DBG_COMP_INIT, DBG_LEVEL_WARN,
("LtFirmInitialize: Waiting for node - SC_PORT Data %x\n",
(UCHAR)Data));
}
NdisStallExecution(500); // 500us
}
Result = ((Adapter->Flags & ADAPTER_NODE_ID_VALID) != 0);
} while (FALSE);
return(Result);
}