+++ /dev/null
-/** @file\r
-*\r
-* Copyright (c) 2012-2014, ARM Limited. All rights reserved.\r
-*\r
-* SPDX-License-Identifier: BSD-2-Clause-Patent\r
-*\r
-**/\r
-\r
-#include "Lan9118Dxe.h"\r
-\r
-typedef struct {\r
- MAC_ADDR_DEVICE_PATH Lan9118;\r
- EFI_DEVICE_PATH_PROTOCOL End;\r
-} LAN9118_DEVICE_PATH;\r
-\r
-LAN9118_DEVICE_PATH Lan9118PathTemplate = {\r
- {\r
- {\r
- MESSAGING_DEVICE_PATH, MSG_MAC_ADDR_DP,\r
- { (UINT8) (sizeof(MAC_ADDR_DEVICE_PATH)), (UINT8) ((sizeof(MAC_ADDR_DEVICE_PATH)) >> 8) }\r
- },\r
- { { 0 } },\r
- 0\r
- },\r
- {\r
- END_DEVICE_PATH_TYPE,\r
- END_ENTIRE_DEVICE_PATH_SUBTYPE,\r
- { sizeof(EFI_DEVICE_PATH_PROTOCOL), 0 }\r
- }\r
-};\r
-\r
-/*\r
-** Entry point for the LAN9118 driver\r
-**\r
-*/\r
-EFI_STATUS\r
-EFIAPI\r
-Lan9118DxeEntry (\r
- IN EFI_HANDLE Handle,\r
- IN EFI_SYSTEM_TABLE *SystemTable\r
- )\r
-{\r
- EFI_STATUS Status;\r
- LAN9118_DRIVER *LanDriver;\r
- EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r
- EFI_SIMPLE_NETWORK_MODE *SnpMode;\r
- LAN9118_DEVICE_PATH *Lan9118Path;\r
- EFI_HANDLE ControllerHandle;\r
-\r
- // The PcdLan9118DxeBaseAddress PCD must be defined\r
- ASSERT (PcdGet32 (PcdLan9118DxeBaseAddress) != 0);\r
-\r
- // Allocate Resources\r
- LanDriver = AllocateZeroPool (sizeof (LAN9118_DRIVER));\r
- if (LanDriver == NULL) {\r
- return EFI_OUT_OF_RESOURCES;\r
- }\r
- Lan9118Path = (LAN9118_DEVICE_PATH*)AllocateCopyPool (sizeof (LAN9118_DEVICE_PATH), &Lan9118PathTemplate);\r
- if (Lan9118Path == NULL) {\r
- return EFI_OUT_OF_RESOURCES;\r
- }\r
-\r
- // Initialize pointers\r
- Snp = &(LanDriver->Snp);\r
- SnpMode = &(LanDriver->SnpMode);\r
- Snp->Mode = SnpMode;\r
-\r
- // Set the signature of the LAN Driver structure\r
- LanDriver->Signature = LAN9118_SIGNATURE;\r
-\r
- // Assign fields and func pointers\r
- Snp->Revision = EFI_SIMPLE_NETWORK_PROTOCOL_REVISION;\r
- Snp->WaitForPacket = NULL;\r
- Snp->Initialize = SnpInitialize;\r
- Snp->Start = SnpStart;\r
- Snp->Stop = SnpStop;\r
- Snp->Reset = SnpReset;\r
- Snp->Shutdown = SnpShutdown;\r
- Snp->ReceiveFilters = SnpReceiveFilters;\r
- Snp->StationAddress = SnpStationAddress;\r
- Snp->Statistics = SnpStatistics;\r
- Snp->MCastIpToMac = SnpMcastIptoMac;\r
- Snp->NvData = SnpNvData;\r
- Snp->GetStatus = SnpGetStatus;\r
- Snp->Transmit = SnpTransmit;\r
- Snp->Receive = SnpReceive;\r
-\r
- // Start completing simple network mode structure\r
- SnpMode->State = EfiSimpleNetworkStopped;\r
- SnpMode->HwAddressSize = NET_ETHER_ADDR_LEN; // HW address is 6 bytes\r
- SnpMode->MediaHeaderSize = sizeof(ETHER_HEAD); // Not sure of this\r
- SnpMode->MaxPacketSize = EFI_PAGE_SIZE; // Preamble + SOF + Ether Frame (with VLAN tag +4bytes)\r
- SnpMode->NvRamSize = 0; // No NVRAM with this device\r
- SnpMode->NvRamAccessSize = 0; // No NVRAM with this device\r
-\r
- //\r
- // Claim that all receive filter settings are supported, though the MULTICAST mode\r
- // is not completely supported. The LAN9118 Ethernet controller is only able to\r
- // do a "hash filtering" and not a perfect filtering on multicast addresses. The\r
- // controller does not filter the multicast addresses directly but a hash value\r
- // of them. The hash value of a multicast address is derived from its CRC and\r
- // ranges from 0 to 63 included.\r
- // We claim that the perfect MULTICAST filtering mode is supported because\r
- // we do not want the user to switch directly to the PROMISCOUS_MULTICAST mode\r
- // and thus not being able to take advantage of the hash filtering.\r
- //\r
- SnpMode->ReceiveFilterMask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST |\r
- EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST |\r
- EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST |\r
- EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS |\r
- EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;\r
-\r
- // We do not intend to receive anything for the time being.\r
- SnpMode->ReceiveFilterSetting = 0;\r
-\r
- // LAN9118 has 64bit hash table, can filter 64 MCast MAC Addresses\r
- SnpMode->MaxMCastFilterCount = MAX_MCAST_FILTER_CNT;\r
- SnpMode->MCastFilterCount = 0;\r
- ZeroMem (&SnpMode->MCastFilter, MAX_MCAST_FILTER_CNT * sizeof(EFI_MAC_ADDRESS));\r
-\r
- // Set the interface type (1: Ethernet or 6: IEEE 802 Networks)\r
- SnpMode->IfType = NET_IFTYPE_ETHERNET;\r
-\r
- // Mac address is changeable as it is loaded from erasable memory\r
- SnpMode->MacAddressChangeable = TRUE;\r
-\r
- // Can only transmit one packet at a time\r
- SnpMode->MultipleTxSupported = FALSE;\r
-\r
- // MediaPresent checks for cable connection and partner link\r
- SnpMode->MediaPresentSupported = TRUE;\r
- SnpMode->MediaPresent = FALSE;\r
-\r
- // Set broadcast address\r
- SetMem (&SnpMode->BroadcastAddress, sizeof (EFI_MAC_ADDRESS), 0xFF);\r
-\r
- // Power up the device so we can find the MAC address\r
- Status = Lan9118Initialize (Snp);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "LAN9118: Error initialising hardware\n"));\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- // Assign fields for device path\r
- CopyMem (&Lan9118Path->Lan9118.MacAddress, &Snp->Mode->CurrentAddress, NET_ETHER_ADDR_LEN);\r
- Lan9118Path->Lan9118.IfType = Snp->Mode->IfType;\r
-\r
- // Initialise the protocol\r
- ControllerHandle = NULL;\r
- Status = gBS->InstallMultipleProtocolInterfaces (\r
- &ControllerHandle,\r
- &gEfiSimpleNetworkProtocolGuid, Snp,\r
- &gEfiDevicePathProtocolGuid, Lan9118Path,\r
- NULL\r
- );\r
- // Say what the status of loading the protocol structure is\r
- if (EFI_ERROR(Status)) {\r
- FreePool (LanDriver);\r
- } else {\r
- LanDriver->ControllerHandle = ControllerHandle;\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-/*\r
- * UEFI Start() function\r
- *\r
- * Parameters:\r
- *\r
- * @param Snp: A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL instance.\r
- *\r
- * Description:\r
- *\r
- * This function starts a network interface. If the network interface successfully starts, then\r
- * EFI_SUCCESS will be returned.\r
- */\r
-EFI_STATUS\r
-EFIAPI\r
-SnpStart (\r
- IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp\r
- )\r
-{\r
- // Check Snp instance\r
- if (Snp == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- // Check state\r
- if ((Snp->Mode->State == EfiSimpleNetworkStarted) ||\r
- (Snp->Mode->State == EfiSimpleNetworkInitialized) ) {\r
- return EFI_ALREADY_STARTED;\r
- }\r
-\r
- // Change state\r
- Snp->Mode->State = EfiSimpleNetworkStarted;\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/*\r
- * UEFI Stop() function\r
- *\r
- */\r
-EFI_STATUS\r
-EFIAPI\r
-SnpStop (\r
- IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp\r
- )\r
-{\r
- // Check Snp Instance\r
- if (Snp == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- // Check state of the driver\r
- if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- // Stop the Tx and Rx\r
- StopTx (STOP_TX_CFG | STOP_TX_MAC, Snp);\r
- StopRx (0, Snp);\r
-\r
- // Change the state\r
- switch (Snp->Mode->State) {\r
- case EfiSimpleNetworkStarted:\r
- case EfiSimpleNetworkInitialized:\r
- Snp->Mode->State = EfiSimpleNetworkStopped;\r
- break;\r
- default:\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- // Put the device into a power saving mode ?\r
- return EFI_SUCCESS;\r
-}\r
-\r
-\r
-// Allocated receive and transmit buffers\r
-STATIC UINT32 gTxBuffer = 0;\r
-\r
-/*\r
- * UEFI Initialize() function\r
- *\r
- */\r
-EFI_STATUS\r
-EFIAPI\r
-SnpInitialize (\r
- IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r
- IN UINTN RxBufferSize OPTIONAL,\r
- IN UINTN TxBufferSize OPTIONAL\r
- )\r
-{\r
- EFI_STATUS Status;\r
- UINT32 PmConf;\r
- INT32 AllocResult;\r
- UINT32 RxStatusSize;\r
- UINT32 TxStatusSize;\r
-\r
- // Initialize variables\r
- // Global variables to hold tx and rx FIFO allocation\r
- gTxBuffer = 0;\r
-\r
- // Check Snp Instance\r
- if (Snp == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- // First check that driver has not already been initialized\r
- if (Snp->Mode->State == EfiSimpleNetworkInitialized) {\r
- DEBUG ((EFI_D_WARN, "LAN9118 Driver already initialized\n"));\r
- return EFI_SUCCESS;\r
- } else\r
- if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r
- DEBUG ((EFI_D_WARN, "LAN9118 Driver not started\n"));\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- // Initiate a PHY reset\r
- Status = PhySoftReset (PHY_RESET_PMT, Snp);\r
- if (EFI_ERROR (Status)) {\r
- Snp->Mode->State = EfiSimpleNetworkStopped;\r
- DEBUG ((EFI_D_WARN, "Warning: Link not ready after TimeOut. Check ethernet cable\n"));\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- // Initiate a software reset\r
- Status = SoftReset (0, Snp);\r
- if (EFI_ERROR(Status)) {\r
- DEBUG ((EFI_D_WARN, "Soft Reset Failed: Hardware Error\n"));\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- // Read the PM register\r
- PmConf = Lan9118MmioRead32 (LAN9118_PMT_CTRL);\r
-\r
- // MPTCTRL_WOL_EN: Allow Wake-On-Lan to detect wake up frames or magic packets\r
- // MPTCTRL_ED_EN: Allow energy detection to allow lowest power consumption mode\r
- // MPTCTRL_PME_EN: Allow Power Management Events\r
- PmConf = 0;\r
- PmConf |= (MPTCTRL_WOL_EN | MPTCTRL_ED_EN | MPTCTRL_PME_EN);\r
-\r
- // Write the current configuration to the register\r
- Lan9118MmioWrite32 (LAN9118_PMT_CTRL, PmConf);\r
-\r
- // Configure GPIO and HW\r
- Status = ConfigureHardware (HW_CONF_USE_LEDS, Snp);\r
- if (EFI_ERROR(Status)) {\r
- return Status;\r
- }\r
-\r
- // Assign the transmitter buffer size (default values)\r
- TxStatusSize = LAN9118_TX_STATUS_SIZE;\r
- RxStatusSize = LAN9118_RX_STATUS_SIZE;\r
-\r
- // Check that a buff size was specified\r
- if (TxBufferSize > 0) {\r
- if (RxBufferSize == 0) {\r
- RxBufferSize = LAN9118_RX_DATA_SIZE;\r
- }\r
-\r
- AllocResult = ChangeFifoAllocation (\r
- ALLOC_USE_FIFOS,\r
- &TxBufferSize,\r
- &RxBufferSize,\r
- &TxStatusSize,\r
- &RxStatusSize,\r
- Snp\r
- );\r
-\r
- if (AllocResult < 0) {\r
- return EFI_OUT_OF_RESOURCES;\r
- }\r
- }\r
-\r
- // Do auto-negotiation if supported\r
- Status = AutoNegotiate (AUTO_NEGOTIATE_ADVERTISE_ALL, Snp);\r
- if (EFI_ERROR(Status)) {\r
- DEBUG ((EFI_D_WARN, "LAN9118: Auto Negotiation failed.\n"));\r
- }\r
-\r
- // Configure flow control depending on speed capabilities\r
- Status = ConfigureFlow (0, 0, 0, 0, Snp);\r
- if (EFI_ERROR(Status)) {\r
- return Status;\r
- }\r
-\r
- // Enable the transmitter\r
- Status = StartTx (START_TX_MAC | START_TX_CFG, Snp);\r
- if (EFI_ERROR(Status)) {\r
- return Status;\r
- }\r
-\r
- // Now acknowledge all interrupts\r
- Lan9118MmioWrite32 (LAN9118_INT_STS, ~0);\r
-\r
- // Declare the driver as initialized\r
- Snp->Mode->State = EfiSimpleNetworkInitialized;\r
-\r
- return Status;\r
-}\r
-\r
-/*\r
- * UEFI Reset () function\r
- *\r
- */\r
-EFI_STATUS\r
-EFIAPI\r
-SnpReset (\r
- IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r
- IN BOOLEAN Verification\r
- )\r
-{\r
- UINT32 PmConf;\r
- UINT32 HwConf;\r
- UINT32 ResetFlags;\r
- EFI_STATUS Status;\r
-\r
- PmConf = 0;\r
- HwConf = 0;\r
- ResetFlags = 0;\r
-\r
- // Check Snp Instance\r
- if (Snp == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- // First check that driver has not already been initialized\r
- if (Snp->Mode->State == EfiSimpleNetworkStarted) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not yet initialized\n"));\r
- return EFI_DEVICE_ERROR;\r
- } else if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not started\n"));\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- // Initiate a PHY reset\r
- Status = PhySoftReset (PHY_RESET_PMT, Snp);\r
- if (EFI_ERROR (Status)) {\r
- Snp->Mode->State = EfiSimpleNetworkStopped;\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- // Initiate a software reset\r
- ResetFlags |= SOFT_RESET_CHECK_MAC_ADDR_LOAD | SOFT_RESET_CLEAR_INT;\r
-\r
- if (Verification) {\r
- ResetFlags |= SOFT_RESET_SELF_TEST;\r
- }\r
-\r
- Status = SoftReset (ResetFlags, Snp);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_WARN, "Warning: Soft Reset Failed: Hardware Error\n"));\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- // Read the PM register\r
- PmConf = Lan9118MmioRead32 (LAN9118_PMT_CTRL);\r
-\r
- // MPTCTRL_WOL_EN: Allow Wake-On-Lan to detect wake up frames or magic packets\r
- // MPTCTRL_ED_EN: Allow energy detection to allow lowest power consumption mode\r
- // MPTCTRL_PME_EN: Allow Power Management Events\r
- PmConf |= (MPTCTRL_WOL_EN | MPTCTRL_ED_EN | MPTCTRL_PME_EN);\r
-\r
- // Write the current configuration to the register\r
- Lan9118MmioWrite32 (LAN9118_PMT_CTRL, PmConf);\r
-\r
- // Reactivate the LEDs\r
- Status = ConfigureHardware (HW_CONF_USE_LEDS, Snp);\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
-\r
- // Check that a buffer size was specified in SnpInitialize\r
- if (gTxBuffer != 0) {\r
- HwConf = Lan9118MmioRead32 (LAN9118_HW_CFG); // Read the HW register\r
- HwConf &= ~HW_CFG_TX_FIFO_SIZE_MASK; // Clear buffer bits first\r
- HwConf |= HW_CFG_TX_FIFO_SIZE(gTxBuffer); // assign size chosen in SnpInitialize\r
-\r
- Lan9118MmioWrite32 (LAN9118_HW_CFG, HwConf); // Write the conf\r
- }\r
-\r
- // Enable the receiver and transmitter and clear their contents\r
- StartRx (START_RX_CLEAR, Snp);\r
- StartTx (START_TX_MAC | START_TX_CFG | START_TX_CLEAR, Snp);\r
-\r
- // Now acknowledge all interrupts\r
- Lan9118MmioWrite32 (LAN9118_INT_STS, ~0);\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/*\r
- * UEFI Shutdown () function\r
- *\r
- */\r
-EFI_STATUS\r
-EFIAPI\r
-SnpShutdown (\r
- IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp\r
- )\r
-{\r
- EFI_STATUS Status;\r
-\r
- // Check Snp Instance\r
- if (Snp == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- // First check that driver has not already been initialized\r
- if (Snp->Mode->State == EfiSimpleNetworkStarted) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not yet initialized\n"));\r
- return EFI_DEVICE_ERROR;\r
- } else if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not started\n"));\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- // Initiate a PHY reset\r
- Status = PhySoftReset (PHY_RESET_PMT, Snp);\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
-\r
- // Initiate a software reset\r
- Status = SoftReset (0, Snp);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_WARN, "Warning: Soft Reset Failed: Hardware Error\n"));\r
- return Status;\r
- }\r
-\r
- // Back to the started and thus not initialized state\r
- Snp->Mode->State = EfiSimpleNetworkStarted;\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/**\r
- Enable and/or disable the receive filters of the LAN9118\r
-\r
- Please refer to the UEFI specification for the precedence rules among the\r
- Enable, Disable and ResetMCastFilter parameters.\r
-\r
- @param[in] Snp A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL\r
- instance.\r
- @param[in] Enable A bit mask of receive filters to enable.\r
- @param[in] Disable A bit mask of receive filters to disable.\r
- @param[in] ResetMCastFilter Set to TRUE to reset the contents of the multicast\r
- receive filters on the network interface to\r
- their default values.\r
- @param[in] MCastFilterCnt Number of multicast HW MAC addresses in the new\r
- MCastFilter list. This value must be less than or\r
- equal to the MCastFilterCnt field of\r
- EFI_SIMPLE_NETWORK_MODE. This field is optional if\r
- ResetMCastFilter is TRUE.\r
- @param[in] MCastFilter A pointer to a list of new multicast receive\r
- filter HW MAC addresses. This list will replace\r
- any existing multicast HW MAC address list. This\r
- field is optional if ResetMCastFilter is TRUE.\r
-\r
- @retval EFI_SUCCESS The receive filters of the LAN9118 were updated.\r
- @retval EFI_NOT_STARTED The LAN9118 has not been started.\r
- @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE :\r
- . This is NULL\r
- . Multicast is being enabled (the\r
- EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST bit is set in\r
- Enable, it is not set in Disable, and ResetMCastFilter\r
- is FALSE) and MCastFilterCount is zero.\r
- . Multicast is being enabled and MCastFilterCount is\r
- greater than Snp->Mode->MaxMCastFilterCount.\r
- . Multicast is being enabled and MCastFilter is NULL\r
- . Multicast is being enabled and one or more of the\r
- addresses in the MCastFilter list are not valid\r
- multicast MAC addresses.\r
- @retval EFI_DEVICE_ERROR The LAN9118 has been started but not initialized.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-SnpReceiveFilters (\r
- IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,\r
- IN UINT32 Enable,\r
- IN UINT32 Disable,\r
- IN BOOLEAN ResetMCastFilter,\r
- IN UINTN MCastFilterCnt OPTIONAL,\r
- IN EFI_MAC_ADDRESS *MCastFilter OPTIONAL\r
- )\r
-{\r
- EFI_SIMPLE_NETWORK_MODE *Mode;\r
- UINT32 MultHashTableHigh;\r
- UINT32 MultHashTableLow;\r
- UINT32 Count;\r
- UINT32 Crc;\r
- UINT8 HashValue;\r
- UINT32 MacCSRValue;\r
- UINT32 ReceiveFilterSetting;\r
- EFI_MAC_ADDRESS *Mac;\r
- EFI_MAC_ADDRESS ZeroMac;\r
-\r
- // Check Snp Instance\r
- if (Snp == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- Mode = Snp->Mode;\r
-\r
- // Check that driver was started and initialised\r
- if (Mode->State == EfiSimpleNetworkStarted) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not initialized\n"));\r
- return EFI_DEVICE_ERROR;\r
- } else if (Mode->State == EfiSimpleNetworkStopped) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver in stopped state\n"));\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- if ((Enable & (~Mode->ReceiveFilterMask)) ||\r
- (Disable & (~Mode->ReceiveFilterMask)) ) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- //\r
- // Check the validity of the multicast setting and compute the\r
- // hash values of the multicast mac addresses to listen to.\r
- //\r
-\r
- MultHashTableHigh = 0;\r
- MultHashTableLow = 0;\r
- if ((!ResetMCastFilter) &&\r
- ((Disable & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST) == 0) &&\r
- ((Enable & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST) != 0) ) {\r
- if ((MCastFilterCnt == 0) ||\r
- (MCastFilterCnt > Mode->MaxMCastFilterCount) ||\r
- (MCastFilter == NULL) ) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- //\r
- // Check the validity of all multicast addresses before to change\r
- // anything.\r
- //\r
- for (Count = 0; Count < MCastFilterCnt; Count++) {\r
- if ((MCastFilter[Count].Addr[0] & 1) == 0) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- }\r
-\r
- //\r
- // Go through each filter address and set appropriate bits on hash table\r
- //\r
- for (Count = 0; Count < MCastFilterCnt; Count++) {\r
- Mac = &(MCastFilter[Count]);\r
- CopyMem (&Mode->MCastFilter[Count], Mac, sizeof(EFI_MAC_ADDRESS));\r
-\r
- Crc = GenEtherCrc32 (Mac, NET_ETHER_ADDR_LEN);\r
- //gBS->CalculateCrc32 ((VOID*)&Mfilter[Count],6,&Crc); <-- doesn't work as desired\r
-\r
- //\r
- // The most significant 6 bits of the MAC address CRC constitute the hash\r
- // value of the MAC address.\r
- //\r
- HashValue = (Crc >> 26) & 0x3F;\r
-\r
- // Select hashlow register if MSB is not set\r
- if ((HashValue & 0x20) == 0) {\r
- MultHashTableLow |= (1 << HashValue);\r
- } else {\r
- MultHashTableHigh |= (1 << (HashValue & 0x1F));\r
- }\r
- }\r
- Mode->MCastFilterCount = MCastFilterCnt;\r
- } else if (ResetMCastFilter) {\r
- Mode->MCastFilterCount = 0;\r
- } else {\r
- MultHashTableLow = IndirectMACRead32 (INDIRECT_MAC_INDEX_HASHL);\r
- MultHashTableHigh = IndirectMACRead32 (INDIRECT_MAC_INDEX_HASHH);\r
- }\r
-\r
- //\r
- // Before to change anything, stop and reset the reception of\r
- // packets.\r
- //\r
- StopRx (STOP_RX_CLEAR, Snp);\r
-\r
- //\r
- // Write the mask of the selected hash values for the multicast filtering.\r
- // The two masks are set to zero if the multicast filtering is not enabled.\r
- //\r
- IndirectMACWrite32 (INDIRECT_MAC_INDEX_HASHL, MultHashTableLow);\r
- IndirectMACWrite32 (INDIRECT_MAC_INDEX_HASHH, MultHashTableHigh);\r
-\r
- ReceiveFilterSetting = (Mode->ReceiveFilterSetting | Enable) & (~Disable);\r
-\r
- //\r
- // Read MAC controller\r
- //\r
- MacCSRValue = IndirectMACRead32 (INDIRECT_MAC_INDEX_CR);\r
- MacCSRValue &= ~(MACCR_HPFILT | MACCR_BCAST | MACCR_PRMS | MACCR_MCPAS);\r
-\r
- if (ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_UNICAST) {\r
- Lan9118SetMacAddress (&Mode->CurrentAddress, Snp);\r
- DEBUG ((DEBUG_NET, "Allowing Unicast Frame Reception\n"));\r
- } else {\r
- //\r
- // The Unicast packets do not have to be listen to, set the MAC\r
- // address of the LAN9118 to be the "not configured" all zeroes\r
- // ethernet MAC address.\r
- //\r
- ZeroMem (&ZeroMac, NET_ETHER_ADDR_LEN);\r
- Lan9118SetMacAddress (&ZeroMac, Snp);\r
- }\r
-\r
- if (ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST) {\r
- MacCSRValue |= MACCR_HPFILT;\r
- DEBUG ((DEBUG_NET, "Allowing Multicast Frame Reception\n"));\r
- }\r
-\r
- if (ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST) {\r
- MacCSRValue |= MACCR_MCPAS;\r
- DEBUG ((DEBUG_NET, "Enabling Promiscuous Multicast Mode\n"));\r
- }\r
-\r
- if ((ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST) == 0) {\r
- MacCSRValue |= MACCR_BCAST;\r
- } else {\r
- DEBUG ((DEBUG_NET, "Allowing Broadcast Frame Reception\n"));\r
- }\r
-\r
- if (ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS) {\r
- MacCSRValue |= MACCR_PRMS;\r
- DEBUG ((DEBUG_NET, "Enabling Promiscuous Mode\n"));\r
- }\r
-\r
- //\r
- // Write the options to the MAC_CSR\r
- //\r
- IndirectMACWrite32 (INDIRECT_MAC_INDEX_CR, MacCSRValue);\r
-\r
- //\r
- // If we have to retrieve something, start packet reception.\r
- //\r
- Mode->ReceiveFilterSetting = ReceiveFilterSetting;\r
- if (ReceiveFilterSetting != 0) {\r
- StartRx (0, Snp);\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/**\r
- Modify of reset the current station address\r
-\r
- @param[in] Snp A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL\r
- instance.\r
- @param[in] Reset Flag used to reset the station address to the\r
- LAN9118's permanent address.\r
- @param[in] New New station address to be used for the network interface.\r
-\r
- @retval EFI_SUCCESS The LAN9118's station address was updated.\r
- @retval EFI_NOT_STARTED The LAN9118 has not been started.\r
- @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE :\r
- . The "New" station address is invalid.\r
- . "Reset" is FALSE and "New" is NULL.\r
- @retval EFI_DEVICE_ERROR The LAN9118 has been started but not initialized.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-SnpStationAddress (\r
- IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,\r
- IN BOOLEAN Reset,\r
- IN EFI_MAC_ADDRESS *New\r
-)\r
-{\r
- UINT32 Count;\r
- UINT8 PermAddr[NET_ETHER_ADDR_LEN];\r
-\r
- DEBUG ((DEBUG_NET, "SnpStationAddress()\n"));\r
-\r
- // Check Snp instance\r
- if (Snp == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- // Check that driver was started and initialised\r
- if (Snp->Mode->State == EfiSimpleNetworkStarted) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not initialized\n"));\r
- return EFI_DEVICE_ERROR;\r
- } else if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver in stopped state\n"));\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- // Get the Permanent MAC address if need reset\r
- if (Reset) {\r
- // Try using EEPROM first. Read the first byte of data from EEPROM at the address 0x0\r
- if ((IndirectEEPROMRead32 (0) & 0xFF) == EEPROM_EXTERNAL_SERIAL_EEPROM) {\r
- for (Count = 0; Count < NET_ETHER_ADDR_LEN; Count++) {\r
- PermAddr[Count] = IndirectEEPROMRead32 (Count + 1);\r
- }\r
- New = (EFI_MAC_ADDRESS *) PermAddr;\r
- Lan9118SetMacAddress ((EFI_MAC_ADDRESS *) PermAddr, Snp);\r
- } else {\r
- DEBUG ((EFI_D_ERROR, "LAN9118: Warning: No valid MAC address in EEPROM, using fallback\n"));\r
- New = (EFI_MAC_ADDRESS*) (FixedPcdGet64 (PcdLan9118DefaultMacAddress));\r
- }\r
- } else {\r
- // Otherwise use the specified new MAC address\r
- if (New == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- //\r
- // If it is a multicast address, it is not valid.\r
- //\r
- if (New->Addr[0] & 0x01) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- }\r
-\r
- CopyMem (&Snp->Mode->CurrentAddress, New, NET_ETHER_ADDR_LEN);\r
-\r
- //\r
- // If packet reception is currently activated, stop and reset it,\r
- // set the new ethernet address and restart the packet reception.\r
- // Otherwise, nothing to do, the MAC address will be updated in\r
- // SnpReceiveFilters() when the UNICAST packet reception will be\r
- // activated.\r
- //\r
- if (Snp->Mode->ReceiveFilterSetting != 0) {\r
- StopRx (STOP_RX_CLEAR, Snp);\r
- Lan9118SetMacAddress (New, Snp);\r
- StartRx (0, Snp);\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/*\r
- * UEFI Statistics() function\r
- *\r
- */\r
-EFI_STATUS\r
-EFIAPI\r
-SnpStatistics (\r
- IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r
- IN BOOLEAN Reset,\r
- IN OUT UINTN *StatSize,\r
- OUT EFI_NETWORK_STATISTICS *Statistics\r
- )\r
-{\r
- LAN9118_DRIVER *LanDriver;\r
- EFI_STATUS Status;\r
-\r
- LanDriver = INSTANCE_FROM_SNP_THIS (Snp);\r
-\r
- DEBUG ((DEBUG_NET, "SnpStatistics()\n"));\r
-\r
- // Check Snp instance\r
- if (Snp == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- // Check that driver was started and initialised\r
- if (Snp->Mode->State == EfiSimpleNetworkStarted) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not initialized\n"));\r
- return EFI_DEVICE_ERROR;\r
- } else if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver in stopped state\n"));\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- //\r
- // Do a reset if required. It is not clearly stated in the UEFI specification\r
- // whether the reset has to be done before to copy the statistics in "Statictics"\r
- // or after. It is a bit strange to do it before but that is what is expected by\r
- // the SCT test on Statistics() with reset : "0x3de76704,0x4bf5,0x42cd,0x8c,0x89,\r
- // 0x54,0x7e,0x4f,0xad,0x4f,0x24".\r
- //\r
- if (Reset) {\r
- ZeroMem (&LanDriver->Stats, sizeof(EFI_NETWORK_STATISTICS));\r
- }\r
-\r
- Status = EFI_SUCCESS;\r
- if (StatSize == NULL) {\r
- if (Statistics != NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- } else {\r
- if (Statistics == NULL) {\r
- Status = EFI_BUFFER_TOO_SMALL;\r
- } else {\r
- // Fill in the statistics\r
- CopyMem (\r
- Statistics, &LanDriver->Stats,\r
- MIN (*StatSize, sizeof (EFI_NETWORK_STATISTICS))\r
- );\r
- if (*StatSize < sizeof (EFI_NETWORK_STATISTICS)) {\r
- Status = EFI_BUFFER_TOO_SMALL;\r
- }\r
- }\r
- *StatSize = sizeof (EFI_NETWORK_STATISTICS);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-/*\r
- * UEFI MCastIPtoMAC() function\r
- *\r
- */\r
-EFI_STATUS\r
-EFIAPI\r
-SnpMcastIptoMac (\r
- IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r
- IN BOOLEAN IsIpv6,\r
- IN EFI_IP_ADDRESS *Ip,\r
- OUT EFI_MAC_ADDRESS *McastMac\r
- )\r
-{\r
- DEBUG ((DEBUG_NET, "SnpMcastIptoMac()\n"));\r
-\r
- // Check Snp instance\r
- if (Snp == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- // Check that driver was started and initialised\r
- if (Snp->Mode->State == EfiSimpleNetworkStarted) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not initialized\n"));\r
- return EFI_DEVICE_ERROR;\r
- } else if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver in stopped state\n"));\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- // Check parameters\r
- if ((McastMac == NULL) || (Ip == NULL)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- // Make sure MAC address is empty\r
- ZeroMem (McastMac, sizeof(EFI_MAC_ADDRESS));\r
-\r
- // If we need ipv4 address\r
- if (!IsIpv6) {\r
- // Most significant 25 bits of a multicast HW address are set.\r
- // 01-00-5E is the IPv4 Ethernet Multicast Address (see RFC 1112)\r
- McastMac->Addr[0] = 0x01;\r
- McastMac->Addr[1] = 0x00;\r
- McastMac->Addr[2] = 0x5E;\r
-\r
- // Lower 23 bits from ipv4 address\r
- McastMac->Addr[3] = (Ip->v4.Addr[1] & 0x7F); // Clear the most significant bit (25th bit of MAC must be 0)\r
- McastMac->Addr[4] = Ip->v4.Addr[2];\r
- McastMac->Addr[5] = Ip->v4.Addr[3];\r
- } else {\r
- // Most significant 16 bits of multicast v6 HW address are set\r
- // 33-33 is the IPv6 Ethernet Multicast Address (see RFC 2464)\r
- McastMac->Addr[0] = 0x33;\r
- McastMac->Addr[1] = 0x33;\r
-\r
- // lower four octets are taken from ipv6 address\r
- McastMac->Addr[2] = Ip->v6.Addr[8];\r
- McastMac->Addr[3] = Ip->v6.Addr[9];\r
- McastMac->Addr[4] = Ip->v6.Addr[10];\r
- McastMac->Addr[5] = Ip->v6.Addr[11];\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/*\r
- * UEFI NvData() function\r
- *\r
- */\r
-EFI_STATUS\r
-EFIAPI\r
-SnpNvData (\r
- IN EFI_SIMPLE_NETWORK_PROTOCOL* pobj,\r
- IN BOOLEAN read_write,\r
- IN UINTN offset,\r
- IN UINTN buff_size,\r
- IN OUT VOID *data\r
- )\r
-{\r
- DEBUG ((DEBUG_NET, "SnpNvData()\n"));\r
-\r
- return EFI_UNSUPPORTED;\r
-}\r
-\r
-\r
-/*\r
- * UEFI GetStatus () function\r
- *\r
- */\r
-EFI_STATUS\r
-EFIAPI\r
-SnpGetStatus (\r
- IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,\r
- OUT UINT32 *IrqStat OPTIONAL,\r
- OUT VOID **TxBuff OPTIONAL\r
- )\r
-{\r
- UINT32 FifoInt;\r
- EFI_STATUS Status;\r
- UINTN NumTxStatusEntries;\r
- UINT32 TxStatus;\r
- UINT16 PacketTag;\r
- UINT32 Interrupts;\r
- LAN9118_DRIVER *LanDriver;\r
-\r
- LanDriver = INSTANCE_FROM_SNP_THIS (Snp);\r
-\r
- // Check preliminaries\r
- if (Snp == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- // Check that driver was started and initialised\r
- if (Snp->Mode->State == EfiSimpleNetworkStarted) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not initialized\n"));\r
- return EFI_DEVICE_ERROR;\r
- } else if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver in stopped state\n"));\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- // Check and acknowledge TX Status interrupt (this will happen if the\r
- // consumer of SNP does not call GetStatus.)\r
- // TODO will we lose TxStatuses if this happens? Maybe in SnpTransmit we\r
- // should check for it and dump the TX Status FIFO.\r
- FifoInt = Lan9118MmioRead32 (LAN9118_FIFO_INT);\r
-\r
- // Clear the TX Status FIFO Overflow\r
- if ((FifoInt & INSTS_TXSO) == 0) {\r
- FifoInt |= INSTS_TXSO;\r
- Lan9118MmioWrite32 (LAN9118_FIFO_INT, FifoInt);\r
- }\r
-\r
- // Read interrupt status if IrqStat is not NULL\r
- if (IrqStat != NULL) {\r
- *IrqStat = 0;\r
-\r
- // Check for receive interrupt\r
- if (Lan9118MmioRead32 (LAN9118_INT_STS) & INSTS_RSFL) { // Data moved from rx FIFO\r
- *IrqStat |= EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT;\r
- Lan9118MmioWrite32 (LAN9118_INT_STS,INSTS_RSFL);\r
- }\r
-\r
- // Check for transmit interrupt\r
- if (Lan9118MmioRead32 (LAN9118_INT_STS) & INSTS_TSFL) {\r
- *IrqStat |= EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT;\r
- Lan9118MmioWrite32 (LAN9118_INT_STS,INSTS_TSFL);\r
- }\r
-\r
- // Check for software interrupt\r
- if (Lan9118MmioRead32 (LAN9118_INT_STS) & INSTS_SW_INT) {\r
- *IrqStat |= EFI_SIMPLE_NETWORK_SOFTWARE_INTERRUPT;\r
- Lan9118MmioWrite32 (LAN9118_INT_STS,INSTS_SW_INT);\r
- }\r
- }\r
-\r
- // Check Status of transmitted packets\r
- // (We ignore TXSTATUS_NO_CA has it might happen in Full Duplex)\r
-\r
- NumTxStatusEntries = Lan9118MmioRead32(LAN9118_TX_FIFO_INF) & TXFIFOINF_TXSUSED_MASK;\r
- if (NumTxStatusEntries > 0) {\r
- TxStatus = Lan9118MmioRead32 (LAN9118_TX_STATUS);\r
- PacketTag = TxStatus >> 16;\r
- TxStatus = TxStatus & 0xFFFF;\r
- if ((TxStatus & TXSTATUS_ES) && (TxStatus != (TXSTATUS_ES | TXSTATUS_NO_CA))) {\r
- DEBUG ((EFI_D_ERROR, "LAN9118: There was an error transmitting. TxStatus=0x%08x:", TxStatus));\r
- if (TxStatus & TXSTATUS_NO_CA) {\r
- DEBUG ((EFI_D_ERROR, "- No carrier\n"));\r
- }\r
- if (TxStatus & TXSTATUS_DEF) {\r
- DEBUG ((EFI_D_ERROR, "- Packet tx was deferred\n"));\r
- }\r
- if (TxStatus & TXSTATUS_EDEF) {\r
- DEBUG ((EFI_D_ERROR, "- Tx ended because of excessive deferral\n"));\r
- }\r
- if (TxStatus & TXSTATUS_ECOLL) {\r
- DEBUG ((EFI_D_ERROR, "- Tx ended because of Excessive Collisions\n"));\r
- }\r
- if (TxStatus & TXSTATUS_LCOLL) {\r
- DEBUG ((EFI_D_ERROR, "- Packet Tx aborted after coll window of 64 bytes\n"));\r
- }\r
- if (TxStatus & TXSTATUS_LOST_CA) {\r
- DEBUG ((EFI_D_ERROR, "- Lost carrier during Tx\n"));\r
- }\r
- return EFI_DEVICE_ERROR;\r
- } else if (TxBuff != NULL) {\r
- LanDriver->Stats.TxTotalFrames += 1;\r
- *TxBuff = LanDriver->TxRing[PacketTag % LAN9118_TX_RING_NUM_ENTRIES];\r
- }\r
- } else if (TxBuff != NULL) {\r
- *TxBuff = NULL;\r
- }\r
-\r
- // Check for a TX Error interrupt\r
- Interrupts = Lan9118MmioRead32 (LAN9118_INT_STS);\r
- if (Interrupts & INSTS_TXE) {\r
- DEBUG ((EFI_D_ERROR, "LAN9118: Transmitter error. Restarting..."));\r
-\r
- // Software reset, the TXE interrupt is cleared by the reset.\r
- Status = SoftReset (0, Snp);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "\n\tSoft Reset Failed: Hardware Error\n"));\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- // Reactivate the LEDs\r
- Status = ConfigureHardware (HW_CONF_USE_LEDS, Snp);\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
-\r
- //\r
- // Restart the transmitter and if necessary the receiver.\r
- // Do not ask for FIFO reset as it has already been done\r
- // by SoftReset().\r
- //\r
- StartTx (START_TX_MAC | START_TX_CFG, Snp);\r
- if (Snp->Mode->ReceiveFilterSetting != 0) {\r
- StartRx (0, Snp);\r
- }\r
- }\r
-\r
- // Update the media status\r
- Status = CheckLinkStatus (0, Snp);\r
- if (EFI_ERROR(Status)) {\r
- Snp->Mode->MediaPresent = FALSE;\r
- } else {\r
- Snp->Mode->MediaPresent = TRUE;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-\r
-/*\r
- * UEFI Transmit() function\r
- *\r
- */\r
-EFI_STATUS\r
-EFIAPI\r
-SnpTransmit (\r
- IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,\r
- IN UINTN HdrSize,\r
- IN UINTN BuffSize,\r
- IN VOID* Data,\r
- IN EFI_MAC_ADDRESS *SrcAddr OPTIONAL,\r
- IN EFI_MAC_ADDRESS *DstAddr OPTIONAL,\r
- IN UINT16 *Protocol OPTIONAL\r
- )\r
-{\r
- LAN9118_DRIVER *LanDriver;\r
- UINT32 TxFreeSpace;\r
- UINT32 TxStatusSpace;\r
- INT32 Count;\r
- UINT32 CommandA;\r
- UINT32 CommandB;\r
- UINT16 LocalProtocol;\r
- UINT32 *LocalData;\r
- UINT16 PacketTag;\r
-\r
-#if defined(EVAL_PERFORMANCE)\r
- UINT64 Perf;\r
- UINT64 StartClock;\r
- UINT64 EndClock;\r
-\r
- Perf = GetPerformanceCounterProperties (NULL, NULL);\r
- StartClock = GetPerformanceCounter ();\r
-#endif\r
-\r
- LanDriver = INSTANCE_FROM_SNP_THIS (Snp);\r
-\r
- // Check preliminaries\r
- if ((Snp == NULL) || (Data == NULL)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- // Check that driver was started and initialised\r
- if (Snp->Mode->State == EfiSimpleNetworkStarted) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not initialized\n"));\r
- return EFI_DEVICE_ERROR;\r
- } else if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver in stopped state\n"));\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- // Ensure header is correct size if non-zero\r
- if (HdrSize) {\r
- if (HdrSize != Snp->Mode->MediaHeaderSize) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if ((DstAddr == NULL) || (Protocol == NULL)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- }\r
-\r
- //\r
- // Check validity of BufferSize\r
- //\r
- if (BuffSize < Snp->Mode->MediaHeaderSize) {\r
- return EFI_BUFFER_TOO_SMALL;\r
- }\r
-\r
- // Before transmitting check the link status\r
- /*if (CheckLinkStatus (0, Snp) < 0) {\r
- return EFI_NOT_READY;\r
- }*/\r
-\r
- // Get DATA FIFO free space in bytes\r
- TxFreeSpace = TxDataFreeSpace (0, Snp);\r
- if (TxFreeSpace < BuffSize) {\r
- return EFI_NOT_READY;\r
- }\r
-\r
- // Get STATUS FIFO used space in bytes\r
- TxStatusSpace = TxStatusUsedSpace (0, Snp);\r
- if (TxStatusSpace > 500) {\r
- return EFI_NOT_READY;\r
- }\r
-\r
- // If DstAddr is not provided, get it from Buffer (we trust that the caller\r
- // has provided a well-formed frame).\r
- if (DstAddr == NULL) {\r
- DstAddr = (EFI_MAC_ADDRESS *) Data;\r
- }\r
-\r
- // Check for the nature of the frame\r
- if ((DstAddr->Addr[0] & 0x1) == 1) {\r
- LanDriver->Stats.TxMulticastFrames += 1;\r
- } else {\r
- LanDriver->Stats.TxUnicastFrames += 1;\r
- }\r
-\r
- // Check if broadcast\r
- if (DstAddr->Addr[0] == 0xFF) {\r
- LanDriver->Stats.TxBroadcastFrames += 1;\r
- }\r
-\r
- PacketTag = LanDriver->NextPacketTag;\r
- LanDriver->NextPacketTag++;\r
-\r
- if (HdrSize) {\r
-\r
- // Format pointer\r
- LocalData = (UINT32*) Data;\r
- LocalProtocol = *Protocol;\r
-\r
- // Create first buffer to pass to controller (for the header)\r
- CommandA = TX_CMD_A_FIRST_SEGMENT | TX_CMD_A_BUFF_SIZE (HdrSize);\r
- CommandB = TX_CMD_B_PACKET_TAG (PacketTag) | TX_CMD_B_PACKET_LENGTH (BuffSize);\r
-\r
- // Write the commands first\r
- Lan9118MmioWrite32 (LAN9118_TX_DATA, CommandA);\r
- Lan9118MmioWrite32 (LAN9118_TX_DATA, CommandB);\r
-\r
- // Write the destination address\r
- Lan9118MmioWrite32 (LAN9118_TX_DATA,\r
- (DstAddr->Addr[0]) |\r
- (DstAddr->Addr[1] << 8) |\r
- (DstAddr->Addr[2] << 16) |\r
- (DstAddr->Addr[3] << 24)\r
- );\r
-\r
- Lan9118MmioWrite32 (LAN9118_TX_DATA,\r
- (DstAddr->Addr[4]) |\r
- (DstAddr->Addr[5] << 8) |\r
- (SrcAddr->Addr[0] << 16) | // Write the Source Address\r
- (SrcAddr->Addr[1] << 24)\r
- );\r
-\r
- Lan9118MmioWrite32 (LAN9118_TX_DATA,\r
- (SrcAddr->Addr[2]) |\r
- (SrcAddr->Addr[3] << 8) |\r
- (SrcAddr->Addr[4] << 16) |\r
- (SrcAddr->Addr[5] << 24)\r
- );\r
-\r
- // Write the Protocol\r
- Lan9118MmioWrite32 (LAN9118_TX_DATA, (UINT32)(HTONS (LocalProtocol)));\r
-\r
- // Next buffer is the payload\r
- CommandA = TX_CMD_A_LAST_SEGMENT | TX_CMD_A_BUFF_SIZE (BuffSize - HdrSize) | TX_CMD_A_COMPLETION_INT | TX_CMD_A_DATA_START_OFFSET (2); // 2 bytes beginning offset\r
-\r
- // Write the commands\r
- Lan9118MmioWrite32 (LAN9118_TX_DATA, CommandA);\r
- Lan9118MmioWrite32 (LAN9118_TX_DATA, CommandB);\r
-\r
- // Write the payload\r
- for (Count = 0; Count < ((BuffSize + 3) >> 2) - 3; Count++) {\r
- Lan9118MmioWrite32 (LAN9118_TX_DATA, LocalData[Count + 3]);\r
- }\r
- } else {\r
- // Format pointer\r
- LocalData = (UINT32*) Data;\r
-\r
- // Create a buffer to pass to controller\r
- CommandA = TX_CMD_A_FIRST_SEGMENT | TX_CMD_A_LAST_SEGMENT | TX_CMD_A_BUFF_SIZE (BuffSize) | TX_CMD_A_COMPLETION_INT;\r
- CommandB = TX_CMD_B_PACKET_TAG (PacketTag) | TX_CMD_B_PACKET_LENGTH (BuffSize);\r
-\r
- // Write the commands first\r
- Lan9118MmioWrite32 (LAN9118_TX_DATA, CommandA);\r
- Lan9118MmioWrite32 (LAN9118_TX_DATA, CommandB);\r
-\r
- // Write all the data\r
- for (Count = 0; Count < ((BuffSize + 3) >> 2); Count++) {\r
- Lan9118MmioWrite32 (LAN9118_TX_DATA, LocalData[Count]);\r
- }\r
- }\r
-\r
- // Save the address of the submitted packet so we can notify the consumer that\r
- // it has been sent in GetStatus. When the packet tag appears in the Tx Status\r
- // Fifo, we will return Buffer in the TxBuff parameter of GetStatus.\r
- LanDriver->TxRing[PacketTag % LAN9118_TX_RING_NUM_ENTRIES] = Data;\r
-\r
-#if defined(EVAL_PERFORMANCE)\r
- EndClock = GetPerformanceCounter ();\r
- DEBUG ((EFI_D_ERROR, "Time processing: %d counts @ %d Hz\n", StartClock - EndClock,Perf));\r
-#endif\r
-\r
- LanDriver->Stats.TxGoodFrames += 1;\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-\r
-/*\r
- * UEFI Receive() function\r
- *\r
- */\r
-EFI_STATUS\r
-EFIAPI\r
-SnpReceive (\r
- IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r
- OUT UINTN *HdrSize OPTIONAL,\r
- IN OUT UINTN *BuffSize,\r
- OUT VOID *Data,\r
- OUT EFI_MAC_ADDRESS *SrcAddr OPTIONAL,\r
- OUT EFI_MAC_ADDRESS *DstAddr OPTIONAL,\r
- OUT UINT16 *Protocol OPTIONAL\r
- )\r
-{\r
- LAN9118_DRIVER *LanDriver;\r
- UINT32 IntSts;\r
- UINT32 RxFifoStatus;\r
- UINT32 NumPackets;\r
- UINT32 RxCfgValue;\r
- UINT32 PLength; // Packet length\r
- UINT32 ReadLimit;\r
- UINT32 Count;\r
- UINT32 Padding;\r
- UINT32 *RawData;\r
- EFI_MAC_ADDRESS Dst;\r
- EFI_MAC_ADDRESS Src;\r
- UINTN DroppedFrames;\r
- EFI_STATUS Status;\r
-\r
- LanDriver = INSTANCE_FROM_SNP_THIS (Snp);\r
-\r
-#if defined(EVAL_PERFORMANCE)\r
- UINT64 Perf = GetPerformanceCounterProperties (NULL, NULL);\r
- UINT64 StartClock = GetPerformanceCounter ();\r
-#endif\r
-\r
- // Check preliminaries\r
- if ((Snp == NULL) || (Data == NULL) || (BuffSize == NULL)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- // Check that driver was started and initialised\r
- if (Snp->Mode->State == EfiSimpleNetworkStarted) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not initialized\n"));\r
- return EFI_DEVICE_ERROR;\r
- } else if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r
- DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver in stopped state\n"));\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- //\r
- // If the receiver raised the RXE error bit, check if the receiver status\r
- // FIFO is full and if not just acknowledge the error. The two other\r
- // conditions to get a RXE error are :\r
- // . the RX data FIFO is read whereas being empty.\r
- // . the RX status FIFO is read whereas being empty.\r
- // The RX data and status FIFO are read by this driver only in the following\r
- // code of this function. After the readings, the RXE error bit is checked\r
- // and if raised, the controller is reset. Thus, at this point, we consider\r
- // that the only valid reason to get an RXE error is the receiver status\r
- // FIFO being full. And if this is not the case, we consider that this is\r
- // a spurious error and we just get rid of it. We experienced such 'spurious'\r
- // errors when running the driver on an A57 on Juno. No valid reason to\r
- // explain those errors has been found so far and everything seems to\r
- // work perfectly when they are just ignored.\r
- //\r
- IntSts = Lan9118MmioRead32 (LAN9118_INT_STS);\r
- if ((IntSts & INSTS_RXE) && (!(IntSts & INSTS_RSFF))) {\r
- Lan9118MmioWrite32 (LAN9118_INT_STS, INSTS_RXE);\r
- }\r
-\r
- // Count dropped frames\r
- DroppedFrames = Lan9118MmioRead32 (LAN9118_RX_DROP);\r
- LanDriver->Stats.RxDroppedFrames += DroppedFrames;\r
-\r
- NumPackets = RxStatusUsedSpace (0, Snp) / 4;\r
- if (!NumPackets) {\r
- return EFI_NOT_READY;\r
- }\r
-\r
- // Read Rx Status (only if not empty)\r
- RxFifoStatus = Lan9118MmioRead32 (LAN9118_RX_STATUS);\r
- LanDriver->Stats.RxTotalFrames += 1;\r
-\r
- // First check for errors\r
- if ((RxFifoStatus & RXSTATUS_MII_ERROR) ||\r
- (RxFifoStatus & RXSTATUS_RXW_TO) ||\r
- (RxFifoStatus & RXSTATUS_FTL) ||\r
- (RxFifoStatus & RXSTATUS_LCOLL) ||\r
- (RxFifoStatus & RXSTATUS_LE) ||\r
- (RxFifoStatus & RXSTATUS_DB))\r
- {\r
- DEBUG ((EFI_D_WARN, "Warning: There was an error on frame reception.\n"));\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- // Check if we got a CRC error\r
- if (RxFifoStatus & RXSTATUS_CRC_ERROR) {\r
- DEBUG ((EFI_D_WARN, "Warning: Crc Error\n"));\r
- LanDriver->Stats.RxCrcErrorFrames += 1;\r
- LanDriver->Stats.RxDroppedFrames += 1;\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- // Check if we got a runt frame\r
- if (RxFifoStatus & RXSTATUS_RUNT) {\r
- DEBUG ((EFI_D_WARN, "Warning: Runt Frame\n"));\r
- LanDriver->Stats.RxUndersizeFrames += 1;\r
- LanDriver->Stats.RxDroppedFrames += 1;\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- // Check filtering status for this packet\r
- if (RxFifoStatus & RXSTATUS_FILT_FAIL) {\r
- DEBUG ((EFI_D_WARN, "Warning: Frame Failed Filtering\n"));\r
- // fast forward?\r
- }\r
-\r
- // Check if we got a broadcast frame\r
- if (RxFifoStatus & RXSTATUS_BCF) {\r
- LanDriver->Stats.RxBroadcastFrames += 1;\r
- }\r
-\r
- // Check if we got a multicast frame\r
- if (RxFifoStatus & RXSTATUS_MCF) {\r
- LanDriver->Stats.RxMulticastFrames += 1;\r
- }\r
-\r
- // Check if we got a unicast frame\r
- if ((RxFifoStatus & RXSTATUS_BCF) && ((RxFifoStatus & RXSTATUS_MCF) == 0)) {\r
- LanDriver->Stats.RxUnicastFrames += 1;\r
- }\r
-\r
- // Get the received packet length\r
- PLength = GET_RXSTATUS_PACKET_LENGTH(RxFifoStatus);\r
- LanDriver->Stats.RxTotalBytes += (PLength - 4);\r
-\r
- // If padding is applied, read more DWORDs\r
- if (PLength % 4) {\r
- Padding = 4 - (PLength % 4);\r
- ReadLimit = (PLength + Padding)/4;\r
- } else {\r
- ReadLimit = PLength/4;\r
- Padding = 0;\r
- }\r
-\r
- // Check buffer size\r
- if (*BuffSize < (PLength + Padding)) {\r
- *BuffSize = PLength + Padding;\r
- return EFI_BUFFER_TOO_SMALL;\r
- }\r
-\r
- // Set the amount of data to be transferred out of FIFO for THIS packet\r
- // This can be used to trigger an interrupt, and status can be checked\r
- RxCfgValue = Lan9118MmioRead32 (LAN9118_RX_CFG);\r
- RxCfgValue &= ~(RXCFG_RX_DMA_CNT_MASK);\r
- RxCfgValue |= RXCFG_RX_DMA_CNT (ReadLimit);\r
-\r
- // Set end alignment to 4-bytes\r
- RxCfgValue &= ~(RXCFG_RX_END_ALIGN_MASK);\r
- Lan9118MmioWrite32 (LAN9118_RX_CFG, RxCfgValue);\r
-\r
- // Update buffer size\r
- *BuffSize = PLength; // -4 bytes may be needed: Received in buffer as\r
- // 4 bytes longer than packet actually is, unless\r
- // packet is < 64 bytes\r
-\r
- if (HdrSize != NULL)\r
- *HdrSize = Snp->Mode->MediaHeaderSize;\r
-\r
- // Format the pointer\r
- RawData = (UINT32*)Data;\r
-\r
- // Read Rx Packet\r
- for (Count = 0; Count < ReadLimit; Count++) {\r
- RawData[Count] = Lan9118MmioRead32 (LAN9118_RX_DATA);\r
- }\r
-\r
- // Get the destination address\r
- if (DstAddr != NULL) {\r
- Dst.Addr[0] = (RawData[0] & 0xFF);\r
- Dst.Addr[1] = (RawData[0] & 0xFF00) >> 8;\r
- Dst.Addr[2] = (RawData[0] & 0xFF0000) >> 16;\r
- Dst.Addr[3] = (RawData[0] & 0xFF000000) >> 24;\r
- Dst.Addr[4] = (RawData[1] & 0xFF);\r
- Dst.Addr[5] = (RawData[1] & 0xFF00) >> 8;\r
- CopyMem (DstAddr, &Dst, NET_ETHER_ADDR_LEN);\r
- }\r
-\r
- // Get the source address\r
- if (SrcAddr != NULL) {\r
- Src.Addr[0] = (RawData[1] & 0xFF0000) >> 16;\r
- Src.Addr[1] = (RawData[1] & 0xFF000000) >> 24;\r
- Src.Addr[2] = (RawData[2] & 0xFF);\r
- Src.Addr[3] = (RawData[2] & 0xFF00) >> 8;\r
- Src.Addr[4] = (RawData[2] & 0xFF0000) >> 16;\r
- Src.Addr[5] = (RawData[2] & 0xFF000000) >> 24;\r
- CopyMem (SrcAddr, &Src, NET_ETHER_ADDR_LEN);\r
- }\r
-\r
- // Get the protocol\r
- if (Protocol != NULL) {\r
- *Protocol = NTOHS (RawData[3] & 0xFFFF);\r
- }\r
-\r
- // Check for Rx errors (worst possible error)\r
- if (Lan9118MmioRead32 (LAN9118_INT_STS) & INSTS_RXE) {\r
- DEBUG ((EFI_D_WARN, "Warning: Receiver Error. Restarting...\n"));\r
-\r
- // Software reset, the RXE interrupt is cleared by the reset.\r
- Status = SoftReset (0, Snp);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "Error: Soft Reset Failed: Hardware Error.\n"));\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- // Reactivate the LEDs\r
- Status = ConfigureHardware (HW_CONF_USE_LEDS, Snp);\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
-\r
- //\r
- // Restart the receiver and the transmitter without resetting the FIFOs\r
- // as it has been done by SoftReset().\r
- //\r
- StartRx (0, Snp);\r
- StartTx (START_TX_MAC | START_TX_CFG, Snp);\r
-\r
- // Say that command could not be sent\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
-#if defined(EVAL_PERFORMANCE)\r
- UINT64 EndClock = GetPerformanceCounter ();\r
- DEBUG ((EFI_D_ERROR, "Receive Time processing: %d counts @ %d Hz\n", StartClock - EndClock,Perf));\r
-#endif\r
-\r
- LanDriver->Stats.RxGoodFrames += 1;\r
-\r
- return EFI_SUCCESS;\r
-}\r
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