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reactos/drivers/network/dd/dc21x4/eeprom.c
Dmitry Borisov bbe6b07612
[DC21X4] Fix minor issues (#6161) 
- The return value got lost when refactoring the setup function
- The check against 0xFFFFFFFF was meant to reject an empty EEPROM image
- Add missing PAGED_CODE(); macros

CORE-8724
2023-12-17 12:00:25 +03:00

1530 lines
36 KiB
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/*
* PROJECT: ReactOS DC21x4 Driver
* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
* PURPOSE: EEPROM manipulation and parsing
* COPYRIGHT: Copyright 2023 Dmitry Borisov <di.sean@protonmail.com>
*/
/* INCLUDES *******************************************************************/
#include "dc21x4.h"
#include <debug.h>
/* GLOBALS ********************************************************************/
#define SROM_READ(Adapter, Data) \
do { \
*Data = DC_READ((Adapter), DcCsr9_SerialInterface); \
NdisStallExecution(10); \
} while (0)
#define SROM_WRITE(Adapter, Value) \
do { \
DC_WRITE((Adapter), DcCsr9_SerialInterface, Value); \
NdisStallExecution(10); \
} while (0)
extern DC_PG_DATA DC_SROM_REPAIR_ENTRY SRompRepairData[];
LIST_ENTRY SRompAdapterList;
_Interlocked_
static volatile LONG SRompAdapterLock = 0;
/* PRIVATE FUNCTIONS **********************************************************/
static
CODE_SEG("PAGE")
VOID
SRomAcquireListMutex(VOID)
{
PAGED_CODE();
while (_InterlockedCompareExchange(&SRompAdapterLock, 1, 0))
{
NdisMSleep(10);
}
}
static inline
CODE_SEG("PAGE")
VOID
SRomReleaseListMutex(VOID)
{
PAGED_CODE();
_InterlockedDecrement(&SRompAdapterLock);
}
static
CODE_SEG("PAGE")
BOOLEAN
SRomIsAdapterInList(
_In_ PDC21X4_ADAPTER Adapter,
_In_ BOOLEAN SearchForMaster,
_Out_opt_ PDC_SROM_ENTRY* FoundEntry)
{
PLIST_ENTRY PrevEntry;
PDC_SROM_ENTRY SRomEntry;
PAGED_CODE();
/* Loop the adapter list backwards */
for (PrevEntry = (&SRompAdapterList)->Blink;
PrevEntry != &SRompAdapterList;
PrevEntry = PrevEntry->Blink)
{
SRomEntry = CONTAINING_RECORD(PrevEntry, DC_SROM_ENTRY, ListEntry);
if ((SRomEntry->ChipType == Adapter->ChipType) &&
(SRomEntry->BusNumber == Adapter->BusNumber) &&
(!SearchForMaster || (SRomEntry->DeviceNumber == Adapter->DeviceNumber)))
{
if (FoundEntry)
*FoundEntry = SRomEntry;
return TRUE;
}
}
return FALSE;
}
static
CODE_SEG("PAGE")
BOOLEAN
SRomRegisterMasterAdapter(
_In_ PDC21X4_ADAPTER Adapter,
_In_ PDC_SROM_ENTRY SRomEntry)
{
BOOLEAN Success;
PAGED_CODE();
SRomAcquireListMutex();
/* Check if board is already registered */
if (SRomIsAdapterInList(Adapter, TRUE, NULL))
{
Success = FALSE;
goto Exit;
}
Adapter->SRomEntry = SRomEntry;
SRomEntry->ChipType = Adapter->ChipType;
SRomEntry->BusNumber = Adapter->BusNumber;
SRomEntry->DeviceNumber = Adapter->DeviceNumber;
SRomEntry->InterruptLevel = Adapter->InterruptLevel;
SRomEntry->InterruptVector = Adapter->InterruptVector;
/* Register the port */
SRomEntry->DeviceBitmap |= 1 << Adapter->DeviceNumber;
/*
* On some multiport boards only the first port contains an EEPROM.
* We put their references to the global adapter list.
*/
InsertTailList(&SRompAdapterList, &SRomEntry->ListEntry);
Success = TRUE;
Exit:
SRomReleaseListMutex();
return Success;
}
static
CODE_SEG("PAGE")
BOOLEAN
SRomFindMasterAdapter(
_In_ PDC21X4_ADAPTER Adapter,
_Out_ PDC_SROM_ENTRY* FoundEntry)
{
PDC_SROM_ENTRY SRomEntry;
ULONG i;
BOOLEAN Found;
PAGED_CODE();
SRomAcquireListMutex();
if (!SRomIsAdapterInList(Adapter, FALSE, &SRomEntry))
{
Found = FALSE;
goto Exit;
}
Adapter->SRomEntry = SRomEntry;
/* Register the port */
SRomEntry->DeviceBitmap |= 1 << Adapter->DeviceNumber;
/*
* Determine the port index that should be used in order to
* (possibly) update the base MAC address.
*/
for (i = 0; i < PCI_MAX_DEVICES; ++i)
{
if (i == Adapter->DeviceNumber)
break;
if (SRomEntry->DeviceBitmap & (1 << i))
++Adapter->ControllerIndex;
}
/*
* On a multiport board there can be up to 4 ports
* connected through a 21050 or 21152 PCI-to-PCI Bridge.
* These boards share a single IRQ line between all of the chips.
* Some BIOSes incorrectly assign different IRQs to the different ports.
*/
Adapter->InterruptLevel = SRomEntry->InterruptLevel;
Adapter->InterruptVector = SRomEntry->InterruptVector;
WARN("EEPROM is missing on controller %u, using image from the master at %u:%u\n",
Adapter->DeviceNumber,
SRomEntry->BusNumber,
SRomEntry->DeviceNumber);
*FoundEntry = SRomEntry;
Found = TRUE;
Exit:
SRomReleaseListMutex();
return Found;
}
static
CODE_SEG("PAGE")
BOOLEAN
SRomIsEmpty(
_In_reads_bytes_(Length) const VOID* Buffer,
_In_ ULONG Length)
{
const UCHAR* Data = Buffer;
const UCHAR FirstByte = Data[0];
ULONG i;
PAGED_CODE();
for (i = 1; i < Length; ++i)
{
if (FirstByte != Data[i])
return FALSE;
}
return TRUE;
}
static
CODE_SEG("PAGE")
VOID
SRomNWayAdvertise(
_In_ PDC21X4_ADAPTER Adapter,
_In_ ULONG MediaCode)
{
PAGED_CODE();
switch (MediaCode)
{
case MEDIA_10T:
Adapter->SymAdvertising |= MII_ADV_10T_HD;
break;
case MEDIA_10T_FD:
Adapter->SymAdvertising |= MII_ADV_10T_FD;
break;
case MEDIA_100TX_HD:
Adapter->SymAdvertising |= MII_ADV_100T_HD;
break;
case MEDIA_100TX_FD:
Adapter->SymAdvertising |= MII_ADV_100T_FD;
break;
case MEDIA_100T4:
Adapter->SymAdvertising |= MII_ADV_100T4;
break;
default:
break;
}
}
static
CODE_SEG("PAGE")
NDIS_STATUS
SRomDecodeBlockGpr(
_In_ PDC21X4_ADAPTER Adapter,
_In_ PUCHAR SRomEnd,
_In_ PUCHAR BlockData)
{
PDC_MEDIA Media;
ULONG MediaCode, OpMode;
USHORT Command;
PAGED_CODE();
if (BlockData > (SRomEnd - 4))
return NDIS_STATUS_BUFFER_OVERFLOW;
MediaCode = SRomGetMediaCode(*BlockData++);
if (MediaCode > SROM_MEDIA_MAX)
{
WARN("Unknown media code %u\n", MediaCode);
return NDIS_STATUS_SUCCESS;
}
Adapter->MediaBitmap |= 1 << MediaCode;
Media = &Adapter->Media[MediaCode];
Media->GpioData = *BlockData++;
Command = DcRetrieveWord(BlockData);
OpMode = Media->OpMode;
OpMode &= ~SROM_OPMODE_MASK;
OpMode |= SRomCommandToOpMode(Command);
Media->OpMode = OpMode;
if (SRomMediaHasActivityIndicator(Command))
{
Media->LinkMask = SRomMediaGetSenseMask(Command);
}
if (SRomMediaActivityIsActiveLow(Command))
{
Media->Polarity = 0xFFFFFFFF;
}
INFO("GPR #%u %s, Command %04lx, Data %02lx\n",
MediaCode,
MediaNumber2Str(Adapter, MediaCode),
Command,
Media->GpioData);
return NDIS_STATUS_SUCCESS;
}
static
CODE_SEG("PAGE")
NDIS_STATUS
SRomDecodeBlockMii(
_In_ PDC21X4_ADAPTER Adapter,
_In_ PUCHAR SRomEnd,
_In_ PUCHAR BlockData,
_In_ BOOLEAN IsOldVersion)
{
PDC_MII_MEDIA Media;
ULONG i, Bytes, Offset;
UCHAR PhyNumber, StreamLength, InterruptInfo;
USHORT Capabilities, Fdx, Ttm;
PAGED_CODE();
if (BlockData > (SRomEnd - 2))
return NDIS_STATUS_BUFFER_OVERFLOW;
PhyNumber = *BlockData++;
/*
* Even though the SROM specification allows several
* PHY devices to be connected to the same chip on a board,
* most if not all boards never use more than 1 MII PHY device.
*/
if (Adapter->Features & DC_HAS_MII)
{
WARN("Unsupported PHY %u\n", PhyNumber);
return NDIS_STATUS_SUCCESS;
}
Media = &Adapter->MiiMedia;
/*
* PHY selection sequence
*/
StreamLength = *BlockData++;
if (StreamLength > SROM_MAX_STREAM_REGS)
{
WARN("Too much registers %u\n", StreamLength);
return NDIS_STATUS_SUCCESS;
}
Bytes = StreamLength;
if (!IsOldVersion)
{
/* In words */
Bytes *= 2;
}
if ((BlockData + Bytes) > (SRomEnd - 1))
{
return NDIS_STATUS_BUFFER_OVERFLOW;
}
Media->SetupStreamLength = StreamLength;
/* Check if we already have the GPIO direction data */
if (Media->SetupStream[0] != 0)
{
Offset = 1;
++Media->SetupStreamLength;
}
else
{
Offset = 0;
}
for (i = 0; i < StreamLength; ++i)
{
if (IsOldVersion)
{
Media->SetupStream[i + Offset] = *BlockData++;
}
else
{
Media->SetupStream[i + Offset] = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
}
}
/*
* PHY reset sequence
*/
if (BlockData > (SRomEnd - 1))
{
return NDIS_STATUS_BUFFER_OVERFLOW;
}
StreamLength = *BlockData++;
if (StreamLength > SROM_MAX_STREAM_REGS)
{
WARN("Too much registers %u\n", StreamLength);
return NDIS_STATUS_SUCCESS;
}
Bytes = StreamLength;
if (!IsOldVersion)
{
/* In words */
Bytes *= 2;
}
if ((BlockData + Bytes) > (SRomEnd - 1))
{
return NDIS_STATUS_BUFFER_OVERFLOW;
}
Media->ResetStreamLength = StreamLength;
for (i = 0; i < StreamLength; ++i)
{
if (IsOldVersion)
{
Media->ResetStream[i] = *BlockData++;
}
else
{
Media->ResetStream[i] = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
}
}
/*
* MII data
*/
Bytes = 4 * sizeof(USHORT);
if (!IsOldVersion)
{
Bytes += 1;
}
if (BlockData > (SRomEnd - Bytes))
{
return NDIS_STATUS_BUFFER_OVERFLOW;
}
Capabilities = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
Media->Advertising = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
Fdx = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
Ttm = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
InterruptInfo = IsOldVersion ? 0 : *BlockData;
Adapter->Features |= DC_HAS_MII;
INFO("MII #%u, Caps %04lx, Adv %04lx, Fdx %04lx, Ttm %04lx, Int %02x\n",
PhyNumber,
Capabilities,
Media->Advertising,
Fdx,
Ttm,
InterruptInfo);
return NDIS_STATUS_SUCCESS;
}
static
CODE_SEG("PAGE")
NDIS_STATUS
SRomDecodeBlockSia(
_In_ PDC21X4_ADAPTER Adapter,
_In_ PUCHAR SRomEnd,
_In_ PUCHAR BlockData)
{
PDC_MEDIA Media;
UCHAR BlockStart;
ULONG MediaCode;
BOOLEAN HasExtendedData;
PAGED_CODE();
if (BlockData > (SRomEnd - 1))
return NDIS_STATUS_BUFFER_OVERFLOW;
BlockStart = *BlockData++;
HasExtendedData = SRomBlockHasExtendedData(BlockStart);
if (BlockData > (SRomEnd - (HasExtendedData ? 10 : 4)))
return NDIS_STATUS_BUFFER_OVERFLOW;
MediaCode = SRomGetMediaCode(BlockStart);
if (MediaCode > SROM_MEDIA_MAX && MediaCode != SROM_MEDIA_HMR)
{
WARN("Unknown media code %u\n", MediaCode);
return NDIS_STATUS_SUCCESS;
}
/* TODO: There were a few 21143-based boards with HMR media */
if ((MediaCode == SROM_MEDIA_HMR) && (Adapter->ChipType != DC21145))
{
ERR("FIXME: 21143 HMR is not supported yet\n");
return NDIS_STATUS_SUCCESS;
}
/* Map the code to our internal value */
if (MediaCode == SROM_MEDIA_HMR)
{
MediaCode = MEDIA_HMR;
}
Adapter->MediaBitmap |= 1 << MediaCode;
Media = &Adapter->Media[MediaCode];
if (HasExtendedData)
{
Media->Csr13 = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
Media->Csr14 = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
Media->Csr15 = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
}
Media->GpioCtrl = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
Media->GpioData = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
SRomNWayAdvertise(Adapter, MediaCode);
INFO("SIA #%u %s, %sCSR13 %04lx CSR14 %04lx CSR15 %04lx, "
"Ctrl %04lx, Data %04lx\n",
MediaCode,
MediaNumber2Str(Adapter, MediaCode),
HasExtendedData ? "EXT " : "",
Media->Csr13,
Media->Csr14,
Media->Csr15,
Media->GpioCtrl,
Media->GpioData);
return NDIS_STATUS_SUCCESS;
}
static
CODE_SEG("PAGE")
NDIS_STATUS
SRomDecodeBlockSym(
_In_ PDC21X4_ADAPTER Adapter,
_In_ PUCHAR SRomEnd,
_In_ PUCHAR BlockData)
{
PDC_MEDIA Media;
ULONG MediaCode, OpMode;
USHORT Command;
PAGED_CODE();
if (BlockData > (SRomEnd - 7))
return NDIS_STATUS_BUFFER_OVERFLOW;
MediaCode = SRomGetMediaCode(*BlockData++);
if (MediaCode > SROM_MEDIA_MAX)
{
WARN("Unknown media code %u\n", MediaCode);
return NDIS_STATUS_SUCCESS;
}
Adapter->MediaBitmap |= 1 << MediaCode;
Media = &Adapter->Media[MediaCode];
Media->GpioCtrl = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
Media->GpioData = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
Command = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
OpMode = Media->OpMode;
OpMode &= ~SROM_OPMODE_MASK;
OpMode |= SRomCommandToOpMode(Command);
Media->OpMode = OpMode;
SRomNWayAdvertise(Adapter, MediaCode);
INFO("SYM #%u %s, Command %04lx, Ctrl %04lx, Data %04lx\n",
MediaCode,
MediaNumber2Str(Adapter, MediaCode),
Command,
Media->GpioCtrl,
Media->GpioData);
return NDIS_STATUS_SUCCESS;
}
static
CODE_SEG("PAGE")
NDIS_STATUS
SRomDecodeBlockReset(
_In_ PDC21X4_ADAPTER Adapter,
_In_ PUCHAR SRomEnd,
_In_ PUCHAR BlockData)
{
UCHAR i, StreamLength;
PAGED_CODE();
if (BlockData > (SRomEnd - 1))
return NDIS_STATUS_BUFFER_OVERFLOW;
StreamLength = *BlockData++;
if (StreamLength > SROM_MAX_STREAM_REGS)
{
WARN("Too much registers %u\n", StreamLength);
return NDIS_STATUS_SUCCESS;
}
if ((BlockData + StreamLength * 2) > (SRomEnd - 1))
return NDIS_STATUS_BUFFER_OVERFLOW;
Adapter->ResetStreamLength = StreamLength;
for (i = 0; i < StreamLength; ++i)
{
Adapter->ResetStream[i] = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
}
INFO("RESET, length %u\n", StreamLength);
return NDIS_STATUS_SUCCESS;
}
static
CODE_SEG("PAGE")
NDIS_STATUS
SRomDecodeBlockHmr(
_In_ PDC21X4_ADAPTER Adapter,
_In_ PUCHAR SRomEnd,
_In_ PUCHAR BlockData,
_In_ UCHAR BlockLength)
{
ULONG Offset, ExtraData, i;
PAGED_CODE();
if (BlockData > (SRomEnd - (2 + 6)))
return NDIS_STATUS_BUFFER_OVERFLOW;
Adapter->AnalogControl = DcRetrieveWord(BlockData) << 16;
BlockData += sizeof(USHORT);
Adapter->HpnaRegister[HPNA_CONTROL_LOW] = *BlockData++;
Adapter->HpnaRegister[HPNA_CONTROL_HIGH] = *BlockData++;
Adapter->HpnaRegister[HPNA_NOISE] = *BlockData++;
Adapter->HpnaRegister[HPNA_NOISE_FLOOR] = *BlockData++;
Adapter->HpnaRegister[HPNA_NOISE_CEILING] = *BlockData++;
Adapter->HpnaRegister[HPNA_NOISE_ATTACK] = *BlockData++;
Adapter->HpnaInitBitmap |= ((1 << HPNA_CONTROL_LOW) |
(1 << HPNA_CONTROL_HIGH) |
(1 << HPNA_NOISE) |
(1 << HPNA_NOISE_FLOOR) |
(1 << HPNA_NOISE_CEILING) |
(1 << HPNA_NOISE_ATTACK));
Offset = 2 /* Length and type fields */ + 2 /* Analog ctrl */ + 6; /* Regs */
ExtraData = (BlockLength - Offset);
if ((BlockData + ExtraData) > (SRomEnd - 1))
return NDIS_STATUS_BUFFER_OVERFLOW;
for (i = 0; i < ExtraData / sizeof(USHORT); ++i)
{
UCHAR RegAddress = SRomHmrRegAddress(*BlockData++);
UCHAR RegValue = *BlockData++;
Adapter->HpnaRegister[RegAddress] = RegValue;
Adapter->HpnaInitBitmap |= 1 << RegAddress;
}
#if DBG
INFO_VERB("Analog Ctrl %04lx\n", Adapter->AnalogControl);
for (i = 0; i < RTL_NUMBER_OF(Adapter->HpnaRegister); ++i)
{
if (Adapter->HpnaInitBitmap & (1 << i))
{
INFO_VERB("HR Reg %02x = %02x\n", i, Adapter->HpnaRegister[i]);
}
}
if (ExtraData % sizeof(USHORT))
{
INFO_VERB("HR Data = %02x\n", *BlockData);
}
#endif
return NDIS_STATUS_SUCCESS;
}
static
CODE_SEG("PAGE")
NDIS_STATUS
SRomParseExtendedBlock(
_In_ PDC21X4_ADAPTER Adapter,
_In_ PUCHAR SRomEnd,
_In_ PUCHAR BlockData,
_Out_ PULONG BlockSize)
{
NDIS_STATUS Status;
ULONG Length, Type;
PAGED_CODE();
if (BlockData > (SRomEnd - 2))
return NDIS_STATUS_BUFFER_OVERFLOW;
Length = SRomGetExtendedBlockLength(*BlockData++);
Type = *BlockData++;
*BlockSize = Length;
switch (Type)
{
case SROM_BLOCK_TYPE_GPR:
Status = SRomDecodeBlockGpr(Adapter, SRomEnd, BlockData);
break;
case SROM_BLOCK_TYPE_MII_1:
case SROM_BLOCK_TYPE_MII_2:
Status = SRomDecodeBlockMii(Adapter,
SRomEnd,
BlockData,
(Type == SROM_BLOCK_TYPE_MII_1));
break;
case SROM_BLOCK_TYPE_SIA:
Status = SRomDecodeBlockSia(Adapter, SRomEnd, BlockData);
break;
case SROM_BLOCK_TYPE_SYM:
Status = SRomDecodeBlockSym(Adapter, SRomEnd, BlockData);
break;
case SROM_BLOCK_TYPE_RESET:
Status = SRomDecodeBlockReset(Adapter, SRomEnd, BlockData);
break;
case SROM_BLOCK_TYPE_HOMERUN:
Status = SRomDecodeBlockHmr(Adapter, SRomEnd, BlockData, Length);
break;
/* Skip over the unused or unknown blocks */
default:
WARN("Unknown block type %u, length %u\n", Type, Length);
case SROM_BLOCK_TYPE_PHY_SHUTDOWN:
Status = NDIS_STATUS_SUCCESS;
break;
}
return Status;
}
static
CODE_SEG("PAGE")
NDIS_STATUS
SRomParse21041Block(
_In_ PDC21X4_ADAPTER Adapter,
_In_ PUCHAR SRomEnd,
_In_ PUCHAR BlockData,
_Out_ PULONG BlockSize)
{
PDC_MEDIA Media;
UCHAR BlockStart;
ULONG MediaCode;
BOOLEAN HasExtendedData;
PAGED_CODE();
if (BlockData > (SRomEnd - 1))
return NDIS_STATUS_BUFFER_OVERFLOW;
BlockStart = *BlockData++;
HasExtendedData = SRomBlockHasExtendedData(BlockStart);
if (BlockData > (SRomEnd - (HasExtendedData ? 7 : 1)))
return NDIS_STATUS_BUFFER_OVERFLOW;
*BlockSize = HasExtendedData ? 7 : 1;
MediaCode = SRomGetMediaCode(BlockStart);
if (MediaCode > SROM_MEDIA_MAX)
{
WARN("Unknown media code %u\n", MediaCode);
return NDIS_STATUS_SUCCESS;
}
Adapter->MediaBitmap |= 1 << MediaCode;
Media = &Adapter->Media[MediaCode];
if (HasExtendedData)
{
Media->Csr13 = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
Media->Csr14 = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
Media->Csr15 = DcRetrieveWord(BlockData);
BlockData += sizeof(USHORT);
}
INFO("SIA #%u %s, %sCSR13 %04lx CSR14 %04lx CSR15 %04lx\n",
MediaCode,
MediaNumber2Str(Adapter, MediaCode),
HasExtendedData ? "EXT " : "",
Media->Csr13,
Media->Csr14,
Media->Csr15);
return NDIS_STATUS_SUCCESS;
}
static
CODE_SEG("PAGE")
BOOLEAN
SRomChecksumValid(
_In_ PUCHAR SRom)
{
USHORT Checksum;
PAGED_CODE();
Checksum = ~DcEthernetCrc(SRom, SROM_CHECKSUM_V1);
if (Checksum == DcRetrieveWord(&SRom[SROM_CHECKSUM_V1]))
return TRUE;
Checksum = ~DcEthernetCrc(SRom, SROM_CHECKSUM_V2);
if (Checksum == DcRetrieveWord(&SRom[SROM_CHECKSUM_V2]))
return TRUE;
return FALSE;
}
static
CODE_SEG("PAGE")
BOOLEAN
AddressRomChecksumValid(
_In_reads_bytes_(EAR_SIZE) PVOID AddressRom)
{
const UCHAR* Octet = AddressRom;
ULONG64 TestPatterm;
ULONG Checksum, i;
PAGED_CODE();
NdisMoveMemory(&TestPatterm, &Octet[24], 8);
if (TestPatterm != EAR_TEST_PATTERN)
return FALSE;
for (i = 0; i < 8; ++i)
{
if (Octet[i] != Octet[15 - i])
return FALSE;
}
Checksum = (Octet[0] << 10) + (Octet[2] << 9) + (Octet[4] << 8) +
(Octet[1] << 2) + (Octet[3] << 1) + Octet[5];
Checksum %= 0xFFFF;
return ((USHORT)Checksum == ((Octet[6] << 8) | Octet[7]));
}
static
CODE_SEG("PAGE")
BOOLEAN
SRomReadMacAddress(
_In_ PDC21X4_ADAPTER Adapter,
_In_ PUCHAR SRom,
_Out_opt_ PULONG AddressOffset)
{
ULONG MacOffset;
PAGED_CODE();
/* Check if we have a board with an old EAR format */
if (NdisEqualMemory(SRom, &SRom[16], 8))
{
/* Validate the EAR checksum */
if (!AddressRomChecksumValid(SRom))
{
ERR("EAR has an invalid checksum\n");
return FALSE;
}
MacOffset = 0;
goto ReadMac;
}
/* Check for a new SROM format */
if (Adapter->ChipType != DC21040)
{
/* Validate the SROM checksum */
if (SRomChecksumValid(SRom))
{
MacOffset = SROM_MAC_ADDRESS;
goto ReadMac;
}
}
/* Sanity check */
if (*(PULONG)SRom == 0xFFFFFFFF || *(PULONG)SRom == 0)
return FALSE;
WARN("Legacy/unknown board found\n");
MacOffset = 0;
ReadMac:
if (AddressOffset)
*AddressOffset = MacOffset;
NdisMoveMemory(Adapter->PermanentMacAddress,
&SRom[MacOffset],
ETH_LENGTH_OF_ADDRESS);
return TRUE;
}
static
CODE_SEG("PAGE")
NDIS_STATUS
SRomParseHeader(
_In_ PDC21X4_ADAPTER Adapter,
_In_ PUCHAR SRom,
_Out_ PUCHAR* InfoLeaf,
_Out_ PUCHAR* SRomEnd)
{
ULONG i, MacOffset, LeafOffset;
PAGED_CODE();
if (!SRomReadMacAddress(Adapter, SRom, &MacOffset))
{
ERR("Unable to read the MAC address\n");
return NDIS_STATUS_FAILURE;
}
/* Assign our own fake info leaf */
if (MacOffset != SROM_MAC_ADDRESS)
{
for (i = 0; SRompRepairData[i].InfoLeaf; ++i)
{
/* Check for a MAC match */
if (NdisEqualMemory(SRompRepairData[i].InfoLeaf, &Adapter->PermanentMacAddress, 3))
{
/* This check is used to distinguish Accton EN1207 from Maxtech */
if ((Adapter->PermanentMacAddress[0] == 0xE8) && (SRom[0x1A] == 0x55))
++i;
break;
}
}
if (!SRompRepairData[i].InfoLeaf)
{
ERR("Non-standard SROM format, OUI %02x:%02x:%02x\n",
Adapter->PermanentMacAddress[0],
Adapter->PermanentMacAddress[1],
Adapter->PermanentMacAddress[2]);
return NDIS_STATUS_ADAPTER_NOT_FOUND;
}
*InfoLeaf = &SRompRepairData[i].InfoLeaf[3];
*SRomEnd = *InfoLeaf + SRompRepairData[i].Length;
/* Update the base address on multiport boards */
Adapter->PermanentMacAddress[5] += Adapter->ControllerIndex;
#if DBG
WARN("Non-standard SROM format, using '%s' info leaf\n", SRompRepairData[i].Name);
#endif
return STATUS_SUCCESS;
}
/* Check if the SROM chip is shared between multiple controllers on a multiport board */
if (SRom[SROM_CONTROLLER_COUNT] > 1)
{
INFO("Multiport board, controller number %u (%u/%u)\n",
Adapter->DeviceNumber,
Adapter->ControllerIndex + 1,
SRom[SROM_CONTROLLER_COUNT]);
for (i = 0; i < SRom[SROM_CONTROLLER_COUNT]; ++i)
{
if (SROM_DEVICE_NUMBER(i) >= EE_SIZE)
return NDIS_STATUS_BUFFER_OVERFLOW;
if (SRom[SROM_DEVICE_NUMBER(i)] == Adapter->DeviceNumber)
break;
}
if (i == SRom[SROM_CONTROLLER_COUNT])
{
ERR("Controller %u was not found in the SROM\n", Adapter->DeviceNumber);
return NDIS_STATUS_ADAPTER_NOT_FOUND;
}
if (SROM_LEAF_OFFSET(i) >= EE_SIZE)
return NDIS_STATUS_BUFFER_OVERFLOW;
/* Update the base address */
Adapter->PermanentMacAddress[5] += i;
}
else
{
i = 0;
}
/* Controller info block offset */
LeafOffset = DcRetrieveWord(SRom + SROM_LEAF_OFFSET(i));
if (LeafOffset > (EE_SIZE - sizeof(DC_SROM_COMPACT_BLOCK)))
return NDIS_STATUS_BUFFER_OVERFLOW;
/* Controller info leaf */
*InfoLeaf = &SRom[LeafOffset];
*SRomEnd = SRom + EE_SIZE;
return STATUS_SUCCESS;
}
static
CODE_SEG("PAGE")
NDIS_STATUS
SRomParse(
_In_ PDC21X4_ADAPTER Adapter,
_In_ PUCHAR SRom)
{
ULONG Index, BlockCount, BlockSize, DefaultMedia;
NDIS_STATUS Status;
USHORT GpioCtrl;
PUCHAR Data, SRomEnd;
PAGED_CODE();
INFO("SROM Version %u, Controller count %u\n",
SRom[SROM_VERSION],
SRom[SROM_CONTROLLER_COUNT]);
Status = SRomParseHeader(Adapter, SRom, &Data, &SRomEnd);
if (Status != NDIS_STATUS_SUCCESS)
return Status;
DefaultMedia = DcRetrieveWord(Data);
Data += sizeof(USHORT);
INFO("Default Media: %04lx\n", DefaultMedia);
/* Direction of the GPIO pins */
if (Adapter->ChipType == DC21140)
{
GpioCtrl = *Data++;
INFO("GPIO Direction: %04lx\n", GpioCtrl);
GpioCtrl |= DC_GPIO_CONTROL;
for (Index = 0; Index < MEDIA_LIST_MAX; ++Index)
{
Adapter->Media[Index].GpioCtrl = GpioCtrl;
}
/* Control word for block type 1 */
Adapter->MiiMedia.SetupStream[0] = GpioCtrl;
}
BlockCount = *Data++;
INFO("Block Count: %u\n", BlockCount);
if (BlockCount == 0 || BlockCount == 0xFF)
{
WARN("No media information found\n");
return NDIS_STATUS_SUCCESS;
}
/* Analyze and decode blocks */
for (Index = 0; Index < BlockCount; ++Index)
{
if (Adapter->ChipType == DC21041)
{
Status = SRomParse21041Block(Adapter, SRomEnd, Data, &BlockSize);
}
else
{
if (Data > (SRomEnd - 1))
return NDIS_STATUS_BUFFER_OVERFLOW;
if (SRomIsBlockExtended(*Data))
{
Status = SRomParseExtendedBlock(Adapter, SRomEnd, Data, &BlockSize);
}
else
{
Status = SRomDecodeBlockGpr(Adapter, SRomEnd, Data);
BlockSize = 4;
}
}
if (Status != NDIS_STATUS_SUCCESS)
return Status;
Data += BlockSize;
}
if ((Adapter->MediaBitmap == 0) && !(Adapter->Features & DC_HAS_MII))
{
WARN("No media information found\n");
}
return NDIS_STATUS_SUCCESS;
}
static
CODE_SEG("PAGE")
VOID
SRomShiftOut(
_In_ PDC21X4_ADAPTER Adapter,
_In_ ULONG Sequence,
_In_ ULONG BitCount)
{
LONG i;
PAGED_CODE();
for (i = BitCount - 1; i >= 0; --i)
{
ULONG DataIn = ((Sequence >> i) & 1) << DC_SERIAL_EE_DI_SHIFT;
SROM_WRITE(Adapter, DataIn | DC_SERIAL_EE_RD | DC_SERIAL_EE_SR | DC_SERIAL_EE_CS);
SROM_WRITE(Adapter, DataIn | DC_SERIAL_EE_RD | DC_SERIAL_EE_SR | DC_SERIAL_EE_CS |
DC_SERIAL_EE_SK);
SROM_WRITE(Adapter, DataIn | DC_SERIAL_EE_RD | DC_SERIAL_EE_SR | DC_SERIAL_EE_CS);
}
}
static
CODE_SEG("PAGE")
USHORT
SRomShiftIn(
_In_ PDC21X4_ADAPTER Adapter)
{
ULONG i, Csr;
USHORT SerialData;
PAGED_CODE();
/* Shift the data out of the EEPROM */
SerialData = 0;
for (i = 0; i < RTL_BITS_OF(USHORT); ++i)
{
SROM_WRITE(Adapter, DC_SERIAL_EE_RD | DC_SERIAL_EE_SR | DC_SERIAL_EE_CS | DC_SERIAL_EE_SK);
SROM_READ(Adapter, &Csr);
SerialData = (SerialData << 1) | ((Csr >> DC_SERIAL_EE_DO_SHIFT) & 1);
SROM_WRITE(Adapter, DC_SERIAL_EE_RD | DC_SERIAL_EE_SR | DC_SERIAL_EE_CS);
}
/* End the read cycle */
SROM_WRITE(Adapter, DC_SERIAL_EE_RD | DC_SERIAL_EE_SR);
return SerialData;
}
static
CODE_SEG("PAGE")
ULONG
SRomDetectAddressBusWidth(
_In_ PDC21X4_ADAPTER Adapter)
{
ULONG Csr, BusWidth;
PAGED_CODE();
/* Assume the SROM is a 1kB ROM, send the read command and zero address (6 bits) */
SRomShiftOut(Adapter, EEPROM_CMD_READ << 6, EEPROM_CMD_LENGTH + 6);
/* Check the preceding dummy zero bit */
Csr = DC_READ(Adapter, DcCsr9_SerialInterface);
if (Csr & DC_SERIAL_EE_DO)
{
/* 4kB EEPROM */
BusWidth = 8;
/* Send the remaining part of the address */
SRomShiftOut(Adapter, 0, 8 - 6);
/* The preceding dummy bit must be zero */
Csr = DC_READ(Adapter, DcCsr9_SerialInterface);
if (Csr & DC_SERIAL_EE_DO)
return 0;
}
else
{
/* 1kB EEPROM */
BusWidth = 6;
}
/* Complete the read cycle */
(VOID)SRomShiftIn(Adapter);
return BusWidth;
}
static
CODE_SEG("PAGE")
BOOLEAN
SRomReadSRom(
_In_ PDC21X4_ADAPTER Adapter,
_Out_writes_all_(EE_SIZE) PVOID SRom)
{
PUSHORT SRomWord = SRom;
BOOLEAN Success = TRUE;
ULONG BusWidth, Address;
PAGED_CODE();
/* Select the device */
SROM_WRITE(Adapter, DC_SERIAL_EE_RD | DC_SERIAL_EE_SR);
SROM_WRITE(Adapter, DC_SERIAL_EE_RD | DC_SERIAL_EE_SR | DC_SERIAL_EE_CS);
BusWidth = SRomDetectAddressBusWidth(Adapter);
if (BusWidth == 0)
{
Success = FALSE;
goto Done;
}
INFO("SROM Bus width: %u\n", BusWidth);
/* Read the SROM contents once */
for (Address = 0; Address < (EE_SIZE / sizeof(USHORT)); ++Address)
{
/* Send the command and address */
SRomShiftOut(Adapter,
(EEPROM_CMD_READ << BusWidth) | Address,
EEPROM_CMD_LENGTH + BusWidth);
/* Read the data */
SRomWord[Address] = SRomShiftIn(Adapter);
}
Done:
/* End chip select */
DC_WRITE(Adapter, DcCsr9_SerialInterface, 0);
return Success;
}
#if DBG
static
CODE_SEG("PAGE")
VOID
SRomDumpContents(
_In_reads_bytes_(Length) const VOID* Buffer,
_In_ ULONG Length)
{
ULONG Offset, Count, i;
const UCHAR* Data = Buffer;
PAGED_CODE();
DbgPrint("SROM data:\n");
Offset = 0;
while (Offset < Length)
{
DbgPrint("%04x:\t", Offset);
Count = min(Length - Offset, 16);
for (i = 0; i < Count; ++i, ++Offset)
{
DbgPrint("0x%02x, ", Data[Offset], (i == 7) ? '-' : ' ');
}
DbgPrint("\n");
}
}
#endif // DBG
static
CODE_SEG("PAGE")
NDIS_STATUS
SRomRead(
_In_ PDC21X4_ADAPTER Adapter)
{
PDC_SROM_ENTRY SRomEntry;
NDIS_STATUS Status;
BOOLEAN ReleaseImage;
PAGED_CODE();
Status = NdisAllocateMemoryWithTag((PVOID*)&SRomEntry,
FIELD_OFFSET(DC_SROM_ENTRY, SRomImage[EE_SIZE]),
DC21X4_TAG);
if (Status != NDIS_STATUS_SUCCESS)
return NDIS_STATUS_RESOURCES;
NdisZeroMemory(SRomEntry, FIELD_OFFSET(DC_SROM_ENTRY, SRomImage));
ReleaseImage = FALSE;
if (SRomReadSRom(Adapter, SRomEntry->SRomImage))
{
if (!SRomRegisterMasterAdapter(Adapter, SRomEntry))
ReleaseImage = TRUE;
}
else
{
NdisFreeMemory(SRomEntry, 0, 0);
if (!SRomFindMasterAdapter(Adapter, &SRomEntry))
{
ERR("Failed to retrieve the SROM contents\n");
return NDIS_STATUS_FAILURE;
}
}
Status = SRomParse(Adapter, SRomEntry->SRomImage);
if (Status != NDIS_STATUS_SUCCESS)
{
ERR("Failed to parse SROM\n");
}
#if DBG
if (Status != NDIS_STATUS_SUCCESS)
SRomDumpContents(SRomEntry->SRomImage, EE_SIZE);
#endif
if (ReleaseImage)
NdisFreeMemory(SRomEntry, 0, 0);
return Status;
}
static
CODE_SEG("PAGE")
BOOLEAN
AddressRomReadData(
_In_ PDC21X4_ADAPTER Adapter,
_Out_writes_all_(EAR_SIZE) PUCHAR AddressRom)
{
ULONG Data, i, j;
PAGED_CODE();
/* Reset the ROM pointer */
DC_WRITE(Adapter, DcCsr9_SerialInterface, 0);
for (i = 0; i < EAR_SIZE; ++i)
{
for (j = 10000; j > 0; --j)
{
NdisStallExecution(1);
Data = DC_READ(Adapter, DcCsr9_SerialInterface);
if (!(Data & DC_SERIAL_EAR_DN))
break;
}
AddressRom[i] = Data & DC_SERIAL_EAR_DT;
}
if (SRomIsEmpty(AddressRom, EAR_SIZE))
return FALSE;
return TRUE;
}
static
CODE_SEG("PAGE")
NDIS_STATUS
AddressRomRead(
_In_ PDC21X4_ADAPTER Adapter)
{
PDC_SROM_ENTRY SRomEntry;
NDIS_STATUS Status;
BOOLEAN ReleaseImage;
PAGED_CODE();
Status = NdisAllocateMemoryWithTag((PVOID*)&SRomEntry,
FIELD_OFFSET(DC_SROM_ENTRY, SRomImage[EAR_SIZE]),
DC21X4_TAG);
if (Status != NDIS_STATUS_SUCCESS)
return NDIS_STATUS_RESOURCES;
NdisZeroMemory(SRomEntry, FIELD_OFFSET(DC_SROM_ENTRY, SRomImage));
ReleaseImage = FALSE;
if (AddressRomReadData(Adapter, SRomEntry->SRomImage))
{
if (!SRomRegisterMasterAdapter(Adapter, SRomEntry))
ReleaseImage = TRUE;
}
else
{
NdisFreeMemory(SRomEntry, 0, 0);
if (!SRomFindMasterAdapter(Adapter, &SRomEntry))
{
ERR("Failed to retrieve the EAR contents\n");
return NDIS_STATUS_FAILURE;
}
}
if (!SRomReadMacAddress(Adapter, SRomEntry->SRomImage, NULL))
{
ERR("Unable to read the MAC address\n");
Status = NDIS_STATUS_FAILURE;
}
/* Update the base address on multiport boards */
Adapter->PermanentMacAddress[5] += Adapter->ControllerIndex;
#if DBG
if (Status != NDIS_STATUS_SUCCESS)
SRomDumpContents(SRomEntry->SRomImage, EAR_SIZE);
#endif
if (ReleaseImage)
NdisFreeMemory(SRomEntry, 0, 0);
return Status;
}
/* PUBLIC FUNCTIONS ***********************************************************/
CODE_SEG("PAGE")
VOID
DcFreeEeprom(
_In_ PDC21X4_ADAPTER Adapter)
{
PDC_SROM_ENTRY SRomEntry;
PAGED_CODE();
SRomEntry = Adapter->SRomEntry;
if (!SRomEntry)
return;
SRomAcquireListMutex();
/* Unregister the port */
SRomEntry->DeviceBitmap &= ~(1 << Adapter->DeviceNumber);
/*
* Free the SROM as soon as the last registered port has removed.
* We can't free it in an unload handler
* as the bus numbers can be changed by a resource rebalance.
*/
if (SRomEntry->DeviceBitmap == 0)
{
INFO("Freeing SROM %p at %u:%u\n",
SRomEntry,
SRomEntry->BusNumber,
SRomEntry->DeviceNumber);
RemoveEntryList(&SRomEntry->ListEntry);
NdisFreeMemory(SRomEntry, 0, 0);
}
SRomReleaseListMutex();
}
CODE_SEG("PAGE")
NDIS_STATUS
DcReadEeprom(
_In_ PDC21X4_ADAPTER Adapter)
{
NDIS_STATUS Status;
PAGED_CODE();
if (Adapter->ChipType == DC21040)
{
/* Ethernet Address ROM */
Status = AddressRomRead(Adapter);
}
else
{
/* MicroWire Compatible Serial EEPROM */
Status = SRomRead(Adapter);
}
if (Status != NDIS_STATUS_SUCCESS)
return Status;
INFO("MAC: %02x:%02x:%02x:%02x:%02x:%02x\n",
Adapter->PermanentMacAddress[0],
Adapter->PermanentMacAddress[1],
Adapter->PermanentMacAddress[2],
Adapter->PermanentMacAddress[3],
Adapter->PermanentMacAddress[4],
Adapter->PermanentMacAddress[5]);
if (ETH_IS_BROADCAST(Adapter->PermanentMacAddress) ||
ETH_IS_EMPTY(Adapter->PermanentMacAddress) ||
ETH_IS_MULTICAST(Adapter->PermanentMacAddress))
{
ERR("Invalid permanent MAC address %02x:%02x:%02x:%02x:%02x:%02x\n",
Adapter->PermanentMacAddress[0],
Adapter->PermanentMacAddress[1],
Adapter->PermanentMacAddress[2],
Adapter->PermanentMacAddress[3],
Adapter->PermanentMacAddress[4],
Adapter->PermanentMacAddress[5]);
NdisWriteErrorLogEntry(Adapter->AdapterHandle, NDIS_ERROR_CODE_NETWORK_ADDRESS, 0);
return NDIS_STATUS_INVALID_ADDRESS;
}
return NDIS_STATUS_SUCCESS;
}
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