diff options
Diffstat (limited to 'OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772/Ax88772.c')
| -rw-r--r-- | OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772/Ax88772.c | 1264 |
1 files changed, 1264 insertions, 0 deletions
diff --git a/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772/Ax88772.c b/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772/Ax88772.c new file mode 100644 index 0000000000..6a74f1c6ac --- /dev/null +++ b/OptionRomPkg/Bus/Usb/UsbNetworking/Ax88772/Ax88772.c @@ -0,0 +1,1264 @@ +/** @file
+ Implement the interface to the AX88772 Ethernet controller.
+
+ This module implements the interface to the ASIX AX88772
+ USB to Ethernet MAC with integrated 10/100 PHY. Note that this implementation
+ only supports the integrated PHY since no other test cases were available.
+
+ Copyright (c) 2011, Intel Corporation
+ All rights reserved. This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "Ax88772.h"
+
+
+/**
+ Compute the CRC
+
+ @param [in] pMacAddress Address of a six byte buffer to containing the MAC address.
+
+ @returns The CRC-32 value associated with this MAC address
+
+**/
+UINT32
+Ax88772Crc (
+ IN UINT8 * pMacAddress
+ )
+{
+ UINT32 BitNumber;
+ INT32 Carry;
+ INT32 Crc;
+ UINT32 Data;
+ UINT8 * pEnd;
+
+ DBG_ENTER ( );
+
+ //
+ // Walk the MAC address
+ //
+ Crc = -1;
+ pEnd = &pMacAddress[ PXE_HWADDR_LEN_ETHER ];
+ while ( pEnd > pMacAddress ) {
+ Data = *pMacAddress++;
+
+
+ //
+ // CRC32: x32 + x26 + x23 + x22 + x16 + x12 + x11 + x10 + x8 + x7 + x5 + x4 + x2 + x + 1
+ //
+ // 1 0000 0100 1100 0001 0001 1101 1011 0111
+ //
+ for ( BitNumber = 0; 8 > BitNumber; BitNumber++ ) {
+ Carry = (( Crc >> 31 ) & 1 ) ^ ( Data & 1 );
+ Crc <<= 1;
+ if ( 0 != Carry ) {
+ Crc ^= 0x04c11db7;
+ }
+ Data >>= 1;
+ }
+ }
+
+ //
+ // Return the CRC value
+ //
+ DBG_EXIT_HEX ( Crc );
+ return (UINT32) Crc;
+}
+
+
+/**
+ Get the MAC address
+
+ This routine calls ::Ax88772UsbCommand to request the MAC
+ address from the network adapter.
+
+ @param [in] pNicDevice Pointer to the NIC_DEVICE structure
+ @param [out] pMacAddress Address of a six byte buffer to receive the MAC address.
+
+ @retval EFI_SUCCESS The MAC address is available.
+ @retval other The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88772MacAddressGet (
+ IN NIC_DEVICE * pNicDevice,
+ OUT UINT8 * pMacAddress
+ )
+{
+ USB_DEVICE_REQUEST SetupMsg;
+ EFI_STATUS Status;
+
+ DBG_ENTER ( );
+
+ //
+ // Set the register address.
+ //
+ SetupMsg.RequestType = USB_ENDPOINT_DIR_IN
+ | USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_MAC_ADDRESS_READ;
+ SetupMsg.Value = 0;
+ SetupMsg.Index = 0;
+ SetupMsg.Length = PXE_HWADDR_LEN_ETHER;
+
+ //
+ // Read the PHY register
+ //
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ pMacAddress );
+
+ //
+ // Return the operation status
+ //
+ DBG_EXIT_STATUS ( Status );
+ return Status;
+}
+
+
+/**
+ Set the MAC address
+
+ This routine calls ::Ax88772UsbCommand to set the MAC address
+ in the network adapter.
+
+ @param [in] pNicDevice Pointer to the NIC_DEVICE structure
+ @param [in] pMacAddress Address of a six byte buffer to containing the new MAC address.
+
+ @retval EFI_SUCCESS The MAC address was set.
+ @retval other The MAC address was not set.
+
+**/
+EFI_STATUS
+Ax88772MacAddressSet (
+ IN NIC_DEVICE * pNicDevice,
+ IN UINT8 * pMacAddress
+ )
+{
+ USB_DEVICE_REQUEST SetupMsg;
+ EFI_STATUS Status;
+
+ DBG_ENTER ( );
+
+ //
+ // Set the register address.
+ //
+ SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_MAC_ADDRESS_WRITE;
+ SetupMsg.Value = 0;
+ SetupMsg.Index = 0;
+ SetupMsg.Length = PXE_HWADDR_LEN_ETHER;
+
+ //
+ // Read the PHY register
+ //
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ pMacAddress );
+
+ //
+ // Return the operation status
+ //
+ DBG_EXIT_STATUS ( Status );
+ return Status;
+}
+
+
+/**
+ Clear the multicast hash table
+
+ @param [in] pNicDevice Pointer to the NIC_DEVICE structure
+
+**/
+VOID
+Ax88772MulticastClear (
+ IN NIC_DEVICE * pNicDevice
+ )
+{
+ DBG_ENTER ( );
+
+ //
+ // Clear the multicast hash table
+ //
+ pNicDevice->MulticastHash[0] = 0;
+ pNicDevice->MulticastHash[1] = 0;
+
+ DBG_EXIT ( );
+}
+
+
+/**
+ Enable a multicast address in the multicast hash table
+
+ This routine calls ::Ax88772Crc to compute the hash bit for
+ this MAC address.
+
+ @param [in] pNicDevice Pointer to the NIC_DEVICE structure
+ @param [in] pMacAddress Address of a six byte buffer to containing the MAC address.
+
+**/
+VOID
+Ax88772MulticastSet (
+ IN NIC_DEVICE * pNicDevice,
+ IN UINT8 * pMacAddress
+ )
+{
+ UINT32 BitNumber;
+ UINT32 Crc;
+ UINT32 Mask;
+
+ DBG_ENTER ( );
+
+ //
+ // Compute the CRC on the destination address
+ //
+ Crc = Ax88772Crc ( pMacAddress );
+
+ //
+ // Set the bit corresponding to the destination address
+ //
+ BitNumber = Crc >> 26;
+ if ( 32 > BitNumber ) {
+ Mask = 1 << BitNumber;
+ pNicDevice->MulticastHash[0] |= Mask;
+ }
+ else {
+ Mask = 1 << ( BitNumber - 32 );
+ pNicDevice->MulticastHash[1] |= Mask;
+ }
+
+ //
+ // Display the multicast address
+ //
+ DEBUG (( DEBUG_RX_MULTICAST | DEBUG_INFO,
+ "Enable multicast: 0x%02x-%02x-%02x-%02x-%02x-%02x, CRC: 0x%08x, Bit number: 0x%02x\r\n",
+ pMacAddress[0],
+ pMacAddress[1],
+ pMacAddress[2],
+ pMacAddress[3],
+ pMacAddress[4],
+ pMacAddress[5],
+ Crc,
+ BitNumber ));
+
+ DBG_EXIT ( );
+}
+
+
+/**
+ Start the link negotiation
+
+ This routine calls ::Ax88772PhyWrite to start the PHY's link
+ negotiation.
+
+ @param [in] pNicDevice Pointer to the NIC_DEVICE structure
+
+ @retval EFI_SUCCESS The link negotiation was started.
+ @retval other Failed to start the link negotiation.
+
+**/
+EFI_STATUS
+Ax88772NegotiateLinkStart (
+ IN NIC_DEVICE * pNicDevice
+ )
+{
+ UINT16 Control;
+ EFI_STATUS Status;
+
+ DBG_ENTER ( );
+
+ //
+ // Set the supported capabilities.
+ //
+ Status = Ax88772PhyWrite ( pNicDevice,
+ PHY_ANAR,
+ AN_CSMA_CD
+ | AN_TX_FDX | AN_TX_HDX
+ | AN_10_FDX | AN_10_HDX );
+ if ( !EFI_ERROR ( Status )) {
+ //
+ // Set the link speed and duplex
+ //
+ Control = BMCR_AUTONEGOTIATION_ENABLE
+ | BMCR_RESTART_AUTONEGOTIATION;
+ if ( pNicDevice->b100Mbps ) {
+ Control |= BMCR_100MBPS;
+ }
+ if ( pNicDevice->bFullDuplex ) {
+ Control |= BMCR_FULL_DUPLEX;
+ }
+ Status = Ax88772PhyWrite ( pNicDevice, PHY_BMCR, Control );
+ }
+
+ //
+ // Return the operation status
+ //
+ DBG_EXIT_STATUS ( Status );
+ return Status;
+}
+
+
+/**
+ Complete the negotiation of the PHY link
+
+ This routine calls ::Ax88772PhyRead to determine if the
+ link negotiation is complete.
+
+ @param [in] pNicDevice Pointer to the NIC_DEVICE structure
+ @param [in, out] pPollCount Address of number of times this routine was polled
+ @param [out] pbComplete Address of boolean to receive complate status.
+ @param [out] pbLinkUp Address of boolean to receive link status, TRUE=up.
+ @param [out] pbHiSpeed Address of boolean to receive link speed, TRUE=100Mbps.
+ @param [out] pbFullDuplex Address of boolean to receive link duplex, TRUE=full.
+
+ @retval EFI_SUCCESS The MAC address is available.
+ @retval other The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88772NegotiateLinkComplete (
+ IN NIC_DEVICE * pNicDevice,
+ IN OUT UINTN * pPollCount,
+ OUT BOOLEAN * pbComplete,
+ OUT BOOLEAN * pbLinkUp,
+ OUT BOOLEAN * pbHiSpeed,
+ OUT BOOLEAN * pbFullDuplex
+ )
+{
+ UINT16 Mask;
+ UINT16 PhyData;
+ EFI_STATUS Status;
+
+ DBG_ENTER ( );
+
+ //
+ // Determine if the link is up.
+ //
+ *pbComplete = FALSE;
+
+ //
+ // Get the link status
+ //
+ Status = Ax88772PhyRead ( pNicDevice,
+ PHY_BMSR,
+ &PhyData );
+ if ( !EFI_ERROR ( Status )) {
+ //
+ // Determine if the autonegotiation is complete.
+ //
+ *pbLinkUp = (BOOLEAN)( 0 != ( PhyData & BMSR_LINKST ));
+ *pbComplete = *pbLinkUp;
+ if ( 0 != *pbComplete ) {
+ //
+ // Get the partners capabilities.
+ //
+ Status = Ax88772PhyRead ( pNicDevice,
+ PHY_ANLPAR,
+ &PhyData );
+ if ( !EFI_ERROR ( Status )) {
+ //
+ // Autonegotiation is complete
+ // Determine the link speed.
+ //
+ *pbHiSpeed = (BOOLEAN)( 0 != ( PhyData & ( AN_TX_FDX | AN_TX_HDX )));
+
+ //
+ // Determine the link duplex.
+ //
+ Mask = ( *pbHiSpeed ) ? AN_TX_FDX : AN_10_FDX;
+ *pbFullDuplex = (BOOLEAN)( 0 != ( PhyData & Mask ));
+ }
+ }
+ }
+
+ //
+ // Return the operation status
+ //
+ DBG_EXIT_STATUS ( Status );
+ return Status;
+}
+
+
+/**
+ Read a register from the PHY
+
+ This routine calls ::Ax88772UsbCommand to read a PHY register.
+
+ @param [in] pNicDevice Pointer to the NIC_DEVICE structure
+ @param [in] RegisterAddress Number of the register to read.
+ @param [in, out] pPhyData Address of a buffer to receive the PHY register value
+
+ @retval EFI_SUCCESS The PHY data is available.
+ @retval other The PHY data is not valid.
+
+**/
+EFI_STATUS
+Ax88772PhyRead (
+ IN NIC_DEVICE * pNicDevice,
+ IN UINT8 RegisterAddress,
+ IN OUT UINT16 * pPhyData
+ )
+{
+ USB_DEVICE_REQUEST SetupMsg;
+ EFI_STATUS Status;
+
+ DBG_ENTER ( );
+
+ //
+ // Request access to the PHY
+ //
+ SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_PHY_ACCESS_SOFTWARE;
+ SetupMsg.Value = 0;
+ SetupMsg.Index = 0;
+ SetupMsg.Length = 0;
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ NULL );
+ if ( !EFI_ERROR ( Status )) {
+ //
+ // Read the PHY register address.
+ //
+ SetupMsg.RequestType = USB_ENDPOINT_DIR_IN
+ | USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_PHY_REG_READ;
+ SetupMsg.Value = pNicDevice->PhyId;
+ SetupMsg.Index = RegisterAddress;
+ SetupMsg.Length = sizeof ( *pPhyData );
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ pPhyData );
+ if ( !EFI_ERROR ( Status )) {
+ DEBUG (( DEBUG_PHY | DEBUG_INFO,
+ "PHY %d: 0x%02x --> 0x%04x\r\n",
+ pNicDevice->PhyId,
+ RegisterAddress,
+ *pPhyData ));
+
+ //
+ // Release the PHY to the hardware
+ //
+ SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_PHY_ACCESS_HARDWARE;
+ SetupMsg.Value = 0;
+ SetupMsg.Index = 0;
+ SetupMsg.Length = 0;
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ NULL );
+ }
+ }
+
+ //
+ // Return the operation status.
+ //
+ DBG_EXIT_STATUS ( Status );
+ return Status;
+}
+
+
+/**
+ Write to a PHY register
+
+ This routine calls ::Ax88772UsbCommand to write a PHY register.
+
+ @param [in] pNicDevice Pointer to the NIC_DEVICE structure
+ @param [in] RegisterAddress Number of the register to read.
+ @param [in] PhyData Address of a buffer to receive the PHY register value
+
+ @retval EFI_SUCCESS The PHY data was written.
+ @retval other Failed to wwrite the PHY register.
+
+**/
+EFI_STATUS
+Ax88772PhyWrite (
+ IN NIC_DEVICE * pNicDevice,
+ IN UINT8 RegisterAddress,
+ IN UINT16 PhyData
+ )
+{
+ USB_DEVICE_REQUEST SetupMsg;
+ EFI_STATUS Status;
+
+ DBG_ENTER ( );
+
+ //
+ // Request access to the PHY
+ //
+ SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_PHY_ACCESS_SOFTWARE;
+ SetupMsg.Value = 0;
+ SetupMsg.Index = 0;
+ SetupMsg.Length = 0;
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ NULL );
+ if ( !EFI_ERROR ( Status )) {
+ //
+ // Write the PHY register
+ //
+ SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_PHY_REG_WRITE;
+ SetupMsg.Value = pNicDevice->PhyId;
+ SetupMsg.Index = RegisterAddress;
+ SetupMsg.Length = sizeof ( PhyData );
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ &PhyData );
+ if ( !EFI_ERROR ( Status )) {
+ DEBUG (( DEBUG_PHY | DEBUG_INFO,
+ "PHY %d: 0x%02x <-- 0x%04x\r\n",
+ pNicDevice->PhyId,
+ RegisterAddress,
+ PhyData ));
+
+ //
+ // Release the PHY to the hardware
+ //
+ SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_PHY_ACCESS_HARDWARE;
+ SetupMsg.Value = 0;
+ SetupMsg.Index = 0;
+ SetupMsg.Length = 0;
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ NULL );
+ }
+ }
+
+ //
+ // Return the operation status.
+ //
+ DBG_EXIT_STATUS ( Status );
+ return Status;
+}
+
+
+/**
+ Reset the AX88772
+
+ This routine uses ::Ax88772UsbCommand to reset the network
+ adapter. This routine also uses ::Ax88772PhyWrite to reset
+ the PHY.
+
+ @param [in] pNicDevice Pointer to the NIC_DEVICE structure
+
+ @retval EFI_SUCCESS The MAC address is available.
+ @retval other The MAC address is not valid.
+
+**/
+EFI_STATUS
+Ax88772Reset (
+ IN NIC_DEVICE * pNicDevice
+ )
+{
+ USB_DEVICE_REQUEST SetupMsg;
+ EFI_STATUS Status;
+
+ DBG_ENTER ( );
+
+ //
+ // Turn off the MAC
+ //
+ SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_RX_CONTROL_WRITE;
+ SetupMsg.Value = 0;
+ SetupMsg.Index = 0;
+ SetupMsg.Length = 0;
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ NULL );
+ if ( !EFI_ERROR ( Status )) {
+ DEBUG (( DEBUG_PHY | DEBUG_RX_BROADCAST | DEBUG_RX_MULTICAST
+ | DEBUG_RX_UNICAST | DEBUG_TX | DEBUG_INFO,
+ "MAC reset\r\n" ));
+
+ //
+ // The link is now idle
+ //
+ pNicDevice->bLinkIdle = TRUE;
+
+ //
+ // Delay for a bit
+ //
+ gBS->Stall ( RESET_MSEC );
+
+ //
+ // Select the internal PHY
+ //
+ SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_PHY_SELECT;
+ SetupMsg.Value = SPHY_PSEL;
+ SetupMsg.Index = 0;
+ SetupMsg.Length = 0;
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ NULL );
+ if ( !EFI_ERROR ( Status )) {
+ //
+ // Delay for a bit
+ //
+ gBS->Stall ( PHY_RESET_MSEC );
+
+ //
+ // Clear the internal PHY reset
+ //
+ SetupMsg.Request = CMD_RESET;
+ SetupMsg.Value = SRR_IPRL | SRR_PRL;
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ NULL );
+ if ( !EFI_ERROR ( Status )) {
+ //
+ // Reset the PHY
+ //
+ Status = Ax88772PhyWrite ( pNicDevice,
+ PHY_BMCR,
+ BMCR_RESET );
+ if ( !EFI_ERROR ( Status )) {
+ //
+ // Set the gaps
+ //
+ SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_GAPS_WRITE;
+ SetupMsg.Value = 0x0c15;
+ SetupMsg.Index = 0x0e;
+ SetupMsg.Length = 0;
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ NULL );
+ }
+ }
+ }
+ }
+
+ //
+ // Return the operation status.
+ //
+ DBG_EXIT_STATUS ( Status );
+ return Status;
+}
+
+
+/**
+ Receive a frame from the network.
+
+ This routine polls the USB receive interface for a packet. If a packet
+ is available, this routine adds the receive packet to the list of
+ pending receive packets.
+
+ This routine calls ::Ax88772NegotiateLinkComplete to verify
+ that the link is up. This routine also calls ::SN_Reset to
+ reset the network adapter when necessary. Finally this
+ routine attempts to receive one or more packets from the
+ network adapter.
+
+ @param [in] pNicDevice Pointer to the NIC_DEVICE structure
+ @param [in] bUpdateLink TRUE = Update link status
+
+**/
+VOID
+Ax88772Rx (
+ IN NIC_DEVICE * pNicDevice,
+ IN BOOLEAN bUpdateLink
+ )
+{
+ BOOLEAN bFullDuplex;
+ BOOLEAN bLinkUp;
+ BOOLEAN bRxPacket;
+ BOOLEAN bSpeed100;
+ UINTN LengthInBytes;
+ RX_TX_PACKET Packet;
+ RX_TX_PACKET * pRxPacket;
+ EFI_USB_IO_PROTOCOL *pUsbIo;
+ EFI_STATUS Status;
+ EFI_TPL TplPrevious;
+ UINT32 TransferStatus;
+
+ //
+ // Synchronize with Ax88772Timer
+ //
+ VERIFY_TPL ( TPL_AX88772 );
+ TplPrevious = gBS->RaiseTPL ( TPL_AX88772 );
+ DEBUG (( DEBUG_TPL | DEBUG_INFO,
+ "%d: TPL\r\n",
+ TPL_AX88772 ));
+
+ //
+ // Get the link status
+ //
+ if ( bUpdateLink ) {
+ bLinkUp = pNicDevice->bLinkUp;
+ bSpeed100 = pNicDevice->b100Mbps;
+ bFullDuplex = pNicDevice->bFullDuplex;
+ Status = Ax88772NegotiateLinkComplete ( pNicDevice,
+ &pNicDevice->PollCount,
+ &pNicDevice->bComplete,
+ &pNicDevice->bLinkUp,
+ &pNicDevice->b100Mbps,
+ &pNicDevice->bFullDuplex );
+
+ //
+ // Determine if the autonegotiation is complete
+ //
+ if ( pNicDevice->bComplete ) {
+ if ( pNicDevice->bLinkUp ) {
+ if (( bSpeed100 && ( !pNicDevice->b100Mbps ))
+ || (( !bSpeed100 ) && pNicDevice->b100Mbps )
+ || ( bFullDuplex && ( !pNicDevice->bFullDuplex ))
+ || (( !bFullDuplex ) && pNicDevice->bFullDuplex )) {
+ pNicDevice->PollCount = 0;
+ DEBUG (( DEBUG_LINK | DEBUG_INFO,
+ "Reset to establish proper link setup: %d Mbps, %s duplex\r\n",
+ pNicDevice->b100Mbps ? 100 : 10,
+ pNicDevice->bFullDuplex ? L"Full" : L"Half" ));
+ Status = SN_Reset ( &pNicDevice->SimpleNetwork, FALSE );
+ }
+ if (( !bLinkUp ) && pNicDevice->bLinkUp ) {
+ //
+ // Display the autonegotiation status
+ //
+ DEBUG (( DEBUG_LINK | DEBUG_INFO,
+ "Link: Up, %d Mbps, %s duplex\r\n",
+ pNicDevice->b100Mbps ? 100 : 10,
+ pNicDevice->bFullDuplex ? L"Full" : L"Half" ));
+ }
+ }
+ }
+
+ //
+ // Update the link status
+ //
+ if ( bLinkUp && ( !pNicDevice->bLinkUp )) {
+ DEBUG (( DEBUG_LINK | DEBUG_INFO, "Link: Down\r\n" ));
+ }
+ }
+
+ //
+ // Loop until all the packets are emptied from the receiver
+ //
+ do {
+ bRxPacket = FALSE;
+
+ //
+ // Locate a packet for use
+ //
+ pRxPacket = pNicDevice->pRxFree;
+ LengthInBytes = sizeof ( *pRxPacket ) - sizeof ( pRxPacket->pNext );
+ if ( NULL == pRxPacket ) {
+ Status = gBS->AllocatePool ( EfiRuntimeServicesData,
+ LengthInBytes,
+ (VOID **) &pRxPacket );
+ if ( !EFI_ERROR ( Status )) {
+ //
+ // Add this packet to the free packet list
+ //
+ pNicDevice->pRxFree = pRxPacket;
+ pRxPacket->pNext = NULL;
+ }
+ else {
+ //
+ // Use the discard packet buffer
+ //
+ pRxPacket = &Packet;
+ }
+ }
+
+ //
+ // Attempt to receive a packet
+ //
+ pUsbIo = pNicDevice->pUsbIo;
+ Status = pUsbIo->UsbBulkTransfer ( pUsbIo,
+ USB_ENDPOINT_DIR_IN | BULK_IN_ENDPOINT,
+ &pRxPacket->Length,
+ &LengthInBytes,
+ 2,
+ &TransferStatus );
+ if (( !EFI_ERROR ( Status ))
+ && ( 0 < pRxPacket->Length )
+ && ( pRxPacket->Length <= sizeof ( pRxPacket->Data ))) {
+
+ //
+ // Determine if the packet should be received
+ //
+ bRxPacket = TRUE;
+ LengthInBytes = pRxPacket->Length;
+ pNicDevice->bLinkIdle = FALSE;
+ if ( pNicDevice->pRxFree == pRxPacket ) {
+ //
+ // Display the received packet
+ //
+ if ( 0 != ( pRxPacket->Data[0] & 1 )) {
+ if (( 0xff == pRxPacket->Data[0])
+ && ( 0xff == pRxPacket->Data[1])
+ && ( 0xff == pRxPacket->Data[2])
+ && ( 0xff == pRxPacket->Data[3])
+ && ( 0xff == pRxPacket->Data[4])
+ && ( 0xff == pRxPacket->Data[5])) {
+ DEBUG (( DEBUG_RX_BROADCAST | DEBUG_INFO,
+ "RX: %02x-%02x-%02x-%02x-%02x-%02x %02x-%02x-%02x-%02x-%02x-%02x %02x-%02x %d bytes\r\n",
+ pRxPacket->Data[0],
+ pRxPacket->Data[1],
+ pRxPacket->Data[2],
+ pRxPacket->Data[3],
+ pRxPacket->Data[4],
+ pRxPacket->Data[5],
+ pRxPacket->Data[6],
+ pRxPacket->Data[7],
+ pRxPacket->Data[8],
+ pRxPacket->Data[9],
+ pRxPacket->Data[10],
+ pRxPacket->Data[11],
+ pRxPacket->Data[12],
+ pRxPacket->Data[13],
+ LengthInBytes ));
+ }
+ else {
+ DEBUG (( DEBUG_RX_MULTICAST | DEBUG_INFO,
+ "RX: %02x-%02x-%02x-%02x-%02x-%02x %02x-%02x-%02x-%02x-%02x-%02x %02x-%02x %d bytes\r\n",
+ pRxPacket->Data[0],
+ pRxPacket->Data[1],
+ pRxPacket->Data[2],
+ pRxPacket->Data[3],
+ pRxPacket->Data[4],
+ pRxPacket->Data[5],
+ pRxPacket->Data[6],
+ pRxPacket->Data[7],
+ pRxPacket->Data[8],
+ pRxPacket->Data[9],
+ pRxPacket->Data[10],
+ pRxPacket->Data[11],
+ pRxPacket->Data[12],
+ pRxPacket->Data[13],
+ LengthInBytes ));
+ }
+ }
+ else {
+ DEBUG (( DEBUG_RX_UNICAST | DEBUG_INFO,
+ "RX: %02x-%02x-%02x-%02x-%02x-%02x %02x-%02x-%02x-%02x-%02x-%02x %02x-%02x %d bytes\r\n",
+ pRxPacket->Data[0],
+ pRxPacket->Data[1],
+ pRxPacket->Data[2],
+ pRxPacket->Data[3],
+ pRxPacket->Data[4],
+ pRxPacket->Data[5],
+ pRxPacket->Data[6],
+ pRxPacket->Data[7],
+ pRxPacket->Data[8],
+ pRxPacket->Data[9],
+ pRxPacket->Data[10],
+ pRxPacket->Data[11],
+ pRxPacket->Data[12],
+ pRxPacket->Data[13],
+ LengthInBytes ));
+ }
+
+ //
+ // Remove this packet from the free packet list
+ //
+ pNicDevice->pRxFree = pRxPacket->pNext;
+ pRxPacket->pNext = NULL;
+
+ //
+ // Append this packet to the receive list
+ //
+ if ( NULL == pNicDevice->pRxTail ) {
+ pNicDevice->pRxHead = pRxPacket;
+ }
+ else {
+ pNicDevice->pRxTail->pNext = pRxPacket;
+ }
+ pNicDevice->pRxTail = pRxPacket;
+ }
+ else {
+ //
+ // Error, not enough buffers for this packet, discard packet
+ //
+ DEBUG (( DEBUG_WARN | DEBUG_INFO,
+ "WARNING - No buffer, discarding RX packet: %02x-%02x-%02x-%02x-%02x-%02x %02x-%02x-%02x-%02x-%02x-%02x %02x-%02x %d bytes\r\n",
+ pRxPacket->Data[0],
+ pRxPacket->Data[1],
+ pRxPacket->Data[2],
+ pRxPacket->Data[3],
+ pRxPacket->Data[4],
+ pRxPacket->Data[5],
+ pRxPacket->Data[6],
+ pRxPacket->Data[7],
+ pRxPacket->Data[8],
+ pRxPacket->Data[9],
+ pRxPacket->Data[10],
+ pRxPacket->Data[11],
+ pRxPacket->Data[12],
+ pRxPacket->Data[13],
+ LengthInBytes ));
+ }
+ }
+ }while ( bRxPacket );
+
+ //
+ // Release the synchronization withhe Ax88772Timer
+ //
+ gBS->RestoreTPL ( TplPrevious );
+ DEBUG (( DEBUG_TPL | DEBUG_INFO,
+ "%d: TPL\r\n",
+ TplPrevious ));
+}
+
+
+/**
+ Enable or disable the receiver
+
+ This routine calls ::Ax88772UsbCommand to update the
+ receiver state. This routine also calls ::Ax88772MacAddressSet
+ to establish the MAC address for the network adapter.
+
+ @param [in] pNicDevice Pointer to the NIC_DEVICE structure
+ @param [in] RxFilter Simple network RX filter mask value
+
+ @retval EFI_SUCCESS The MAC address was set.
+ @retval other The MAC address was not set.
+
+**/
+EFI_STATUS
+Ax88772RxControl (
+ IN NIC_DEVICE * pNicDevice,
+ IN UINT32 RxFilter
+ )
+{
+ UINT16 MediumStatus;
+ INT32 MulticastHash[2];
+ UINT16 RxControl;
+ USB_DEVICE_REQUEST SetupMsg;
+ EFI_STATUS Status;
+
+ DBG_ENTER ( );
+
+ //
+ // Disable all multicast
+ //
+ MulticastHash[0] = 0;
+ MulticastHash[1] = 0;
+
+ //
+ // Enable the receiver if something is to be received
+ //
+ Status = EFI_SUCCESS;
+ RxControl = RXC_SO | RXC_MFB_16384;
+ if ( 0 != RxFilter ) {
+ //
+ // Enable the receiver
+ //
+ SetupMsg.RequestType = USB_ENDPOINT_DIR_IN
+ | USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_MEDIUM_STATUS_READ;
+ SetupMsg.Value = 0;
+ SetupMsg.Index = 0;
+ SetupMsg.Length = sizeof ( MediumStatus );
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ &MediumStatus );
+ if ( !EFI_ERROR ( Status )) {
+ if ( 0 == ( MediumStatus & MS_RE )) {
+ MediumStatus |= MS_RE | MS_ONE;
+ if ( pNicDevice->bFullDuplex ) {
+ MediumStatus |= MS_TFC | MS_RFC;
+ }
+ SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_MEDIUM_STATUS_WRITE;
+ SetupMsg.Value = MediumStatus;
+ SetupMsg.Index = 0;
+ SetupMsg.Length = 0;
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ NULL );
+ if ( EFI_ERROR ( Status )) {
+ DEBUG (( DEBUG_ERROR | DEBUG_INFO,
+ "ERROR - Failed to enable receiver, Status: %r\r\n",
+ Status ));
+ }
+ }
+ }
+ else {
+ DEBUG (( DEBUG_ERROR | DEBUG_INFO,
+ "ERROR - Failed to read receiver status, Status: %r\r\n",
+ Status ));
+ }
+
+ //
+ // Enable multicast if requested
+ //
+ if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST )) {
+ RxControl |= RXC_AM;
+ MulticastHash[0] = pNicDevice->MulticastHash[0];
+ MulticastHash[1] = pNicDevice->MulticastHash[1];
+ }
+
+ //
+ // Enable all multicast if requested
+ //
+ if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST )) {
+ RxControl |= RXC_AMALL;
+ MulticastHash[0] = -1;
+ MulticastHash[1] = -1;
+ }
+
+ //
+ // Enable broadcast if requested
+ //
+ if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST )) {
+ RxControl |= RXC_AB;
+ }
+
+ //
+ // Enable promiscuous mode if requested
+ //
+ if ( 0 != ( RxFilter & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS )) {
+ RxControl |= RXC_PRO;
+ MulticastHash[0] = -1;
+ MulticastHash[1] = -1;
+ }
+ }
+
+ //
+ // Update the MAC address
+ //
+ if ( !EFI_ERROR ( Status )) {
+ Status = Ax88772MacAddressSet ( pNicDevice, &pNicDevice->SimpleNetworkData.CurrentAddress.Addr[0]);
+ }
+
+ //
+ // Update the receiver control
+ //
+ if ( !EFI_ERROR ( Status )) {
+ SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_RX_CONTROL_WRITE;
+ SetupMsg.Value = RxControl;
+ SetupMsg.Index = 0;
+ SetupMsg.Length = 0;
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ NULL );
+ if ( !EFI_ERROR ( Status )) {
+ DEBUG (( DEBUG_RX_BROADCAST | DEBUG_RX_MULTICAST | DEBUG_RX_UNICAST | DEBUG_INFO,
+ "RxControl: 0x%04x\r\n",
+ RxControl ));
+
+ //
+ // Update the multicast hash table
+ //
+ SetupMsg.RequestType = USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_MULTICAST_HASH_WRITE;
+ SetupMsg.Value = 0;
+ SetupMsg.Index = 0;
+ SetupMsg.Length = sizeof ( pNicDevice ->MulticastHash );
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ &pNicDevice->MulticastHash );
+ if ( !EFI_ERROR ( Status )) {
+ DEBUG (( DEBUG_RX_MULTICAST | DEBUG_INFO,
+ "Multicast Hash: 0x%02x %02x %02x %02x %02x %02x %02x %02x\r\n",
+ (UINT8) MulticastHash[0],
+ (UINT8)( MulticastHash[0] >> 8 ),
+ (UINT8)( MulticastHash[0] >> 16 ),
+ (UINT8)( MulticastHash[0] >> 24 ),
+ (UINT8) MulticastHash[1],
+ (UINT8)( MulticastHash[1] >> 8 ),
+ (UINT8)( MulticastHash[1] >> 16 ),
+ (UINT8)( MulticastHash[1] >> 24 )));
+ }
+ else {
+ DEBUG (( DEBUG_ERROR | DEBUG_INFO,
+ "ERROR - Failed to update multicast hash table, Status: %r\r\n",
+ Status ));
+ }
+ }
+ else {
+ DEBUG (( DEBUG_ERROR | DEBUG_INFO,
+ "ERROR - Failed to set receiver control, Status: %r\r\n",
+ Status ));
+ }
+ }
+
+ //
+ // Return the operation status
+ //
+ DBG_EXIT_STATUS ( Status );
+ return Status;
+}
+
+
+/**
+ Read an SROM location
+
+ This routine calls ::Ax88772UsbCommand to read data from the
+ SROM.
+
+ @param [in] pNicDevice Pointer to the NIC_DEVICE structure
+ @param [in] Address SROM address
+ @param [out] pData Buffer to receive the data
+
+ @retval EFI_SUCCESS The read was successful
+ @retval other The read failed
+
+**/
+EFI_STATUS
+Ax88772SromRead (
+ IN NIC_DEVICE * pNicDevice,
+ IN UINT32 Address,
+ OUT UINT16 * pData
+ )
+{
+ USB_DEVICE_REQUEST SetupMsg;
+ EFI_STATUS Status;
+
+ DBG_ENTER ( );
+
+ //
+ // Read a value from the SROM
+ //
+ SetupMsg.RequestType = USB_ENDPOINT_DIR_IN
+ | USB_REQ_TYPE_VENDOR
+ | USB_TARGET_DEVICE;
+ SetupMsg.Request = CMD_SROM_READ;
+ SetupMsg.Value = (UINT16) Address;
+ SetupMsg.Index = 0;
+ SetupMsg.Length = sizeof ( *pData );
+ Status = Ax88772UsbCommand ( pNicDevice,
+ &SetupMsg,
+ pData );
+
+ //
+ // Return the operation status
+ //
+ DBG_EXIT_STATUS ( Status );
+ return Status;
+}
+
+
+/**
+ This routine is called at a regular interval to poll for
+ receive packets.
+
+ This routine polls the link state and gets any receive packets
+ by calling ::Ax88772Rx.
+
+ @param [in] Event Timer event
+ @param [in] pNicDevice Pointer to the NIC_DEVICE structure
+
+**/
+VOID
+Ax88772Timer (
+ IN EFI_EVENT Event,
+ IN NIC_DEVICE * pNicDevice
+ )
+{
+ //
+ // Use explicit DEBUG messages since the output frequency is too
+ // high for DEBUG_INFO to keep up and have spare cycles for the
+ // shell
+ //
+ DEBUG (( DEBUG_TIMER, "Entering Ax88772Timer\r\n" ));
+
+ //
+ // Poll the link state and get any receive packets
+ //
+ Ax88772Rx ( pNicDevice, FALSE );
+
+ DEBUG (( DEBUG_TIMER, "Exiting Ax88772Timer\r\n" ));
+}
+
+
+/**
+ Send a command to the USB device.
+
+ @param [in] pNicDevice Pointer to the NIC_DEVICE structure
+ @param [in] pRequest Pointer to the request structure
+ @param [in, out] pBuffer Data buffer address
+
+ @retval EFI_SUCCESS The USB transfer was successful
+ @retval other The USB transfer failed
+
+**/
+EFI_STATUS
+Ax88772UsbCommand (
+ IN NIC_DEVICE * pNicDevice,
+ IN USB_DEVICE_REQUEST * pRequest,
+ IN OUT VOID * pBuffer
+ )
+{
+ UINT32 CmdStatus;
+ EFI_USB_DATA_DIRECTION Direction;
+ EFI_USB_IO_PROTOCOL * pUsbIo;
+ EFI_STATUS Status;
+
+ DBG_ENTER ( );
+
+ //
+ // Determine the transfer direction
+ //
+ Direction = EfiUsbNoData;
+ if ( 0 != pRequest->Length ) {
+ Direction = ( 0 != ( pRequest->RequestType & USB_ENDPOINT_DIR_IN ))
+ ? EfiUsbDataIn : EfiUsbDataOut;
+ }
+
+ //
+ // Issue the command
+ //
+ pUsbIo = pNicDevice->pUsbIo;
+ Status = pUsbIo->UsbControlTransfer ( pUsbIo,
+ pRequest,
+ Direction,
+ USB_BUS_TIMEOUT,
+ pBuffer,
+ pRequest->Length,
+ &CmdStatus );
+
+ //
+ // Determine the operation status
+ //
+ if ( !EFI_ERROR ( Status )) {
+ Status = CmdStatus;
+ }
+ else {
+ //
+ // Display any errors
+ //
+ DEBUG (( DEBUG_INFO,
+ "Ax88772UsbCommand - Status: %r\n",
+ Status ));
+
+ //
+ // Only use status values associated with the Simple Network protocol
+ //
+ if ( EFI_TIMEOUT == Status ) {
+ Status = EFI_DEVICE_ERROR;
+ }
+ }
+
+ //
+ // Return the operation status
+ //
+ DBG_EXIT_STATUS ( Status );
+ return Status;
+}
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