1 /****************************************************************************
3 (c) SYSTEC electronic GmbH, D-07973 Greiz, August-Bebel-Str. 29
4 www.systec-electronic.com
8 Description: interface for ethernetdriver
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28 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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43 If a provision of this License is or becomes illegal, invalid or
44 unenforceable in any jurisdiction, that shall not affect:
45 1. the validity or enforceability in that jurisdiction of any other
46 provision of this License; or
47 2. the validity or enforceability in other jurisdictions of that or
48 any other provision of this License.
50 -------------------------------------------------------------------------
56 $Revision: 1.6 $ $Date: 2008/04/17 21:36:32 $
61 Dev C++ and GNU-Compiler for m68k
63 -------------------------------------------------------------------------
67 2005/08/01 m.b.: start of implementation
69 ****************************************************************************/
77 //---------------------------------------------------------------------------
79 //---------------------------------------------------------------------------
80 // --------------------------------------------------------------------------
81 #define MAX_ETH_DATA_SIZE 1500
82 #define MIN_ETH_DATA_SIZE 46
84 #define ETH_HDR_OFFSET 0 // Ethernet header at the top of the frame
85 #define ETH_HDR_SIZE 14 // size of Ethernet header
86 #define MIN_ETH_SIZE (MIN_ETH_DATA_SIZE + ETH_HDR_SIZE) // without CRC
88 #define ETH_CRC_SIZE 4 // size of Ethernet CRC, i.e. FCS
90 //---------------------------------------------------------------------------
92 //---------------------------------------------------------------------------
94 // position of a buffer in an ethernet-frame
96 kEdrvBufferFirstInFrame = 0x01, // first data buffer in an ethernet frame
97 kEdrvBufferMiddleInFrame = 0x02, // a middle data buffer in an ethernet frame
98 kEdrvBufferLastInFrame = 0x04 // last data buffer in an ethernet frame
101 // format of a tx-buffer
102 typedef struct _tEdrvTxBuffer {
103 tEplMsgType m_EplMsgType; // IN: type of EPL message, set by calling function
104 unsigned int m_uiTxMsgLen; // IN: length of message to be send (set for each transmit call)
105 // ----------------------
106 unsigned int m_uiBufferNumber; // OUT: number of the buffer, set by ethernetdriver
107 u8 *m_pbBuffer; // OUT: pointer to the buffer, set by ethernetdriver
108 tEplNetTime m_NetTime; // OUT: Timestamp of end of transmission, set by ethernetdriver
109 // ----------------------
110 unsigned int m_uiMaxBufferLen; // IN/OUT: maximum length of the buffer
113 // format of a rx-buffer
114 typedef struct _tEdrvRxBuffer {
115 tEdrvBufferInFrame m_BufferInFrame; // OUT position of received buffer in an ethernet-frame
116 unsigned int m_uiRxMsgLen; // OUT: length of received buffer (without CRC)
117 u8 *m_pbBuffer; // OUT: pointer to the buffer, set by ethernetdriver
118 tEplNetTime m_NetTime; // OUT: Timestamp of end of receiption
122 //typedef void (*tEdrvRxHandler) (u8 bBufferInFrame_p, tBufferDescr * pbBuffer_p);
123 //typedef void (*tEdrvRxHandler) (u8 bBufferInFrame_p, u8 * pbEthernetData_p, u16 wDataLen_p);
124 typedef void (*tEdrvRxHandler) (tEdrvRxBuffer * pRxBuffer_p);
125 typedef void (*tEdrvTxHandler) (tEdrvTxBuffer * pTxBuffer_p);
127 // format of init structure
129 u8 m_abMyMacAddr[6]; // the own MAC address
131 // u8 m_bNoOfRxBuffDescr; // number of entries in rx bufferdescriptor table
132 // tBufferDescr * m_pRxBuffDescrTable; // rx bufferdescriptor table
133 // u16 m_wRxBufferSize; // size of the whole rx buffer
135 tEdrvRxHandler m_pfnRxHandler;
136 tEdrvTxHandler m_pfnTxHandler;
140 //---------------------------------------------------------------------------
141 // function prototypes
142 //---------------------------------------------------------------------------
144 tEplKernel EdrvInit(tEdrvInitParam * pEdrvInitParam_p);
146 tEplKernel EdrvShutdown(void);
148 tEplKernel EdrvDefineRxMacAddrEntry(u8 * pbMacAddr_p);
149 tEplKernel EdrvUndefineRxMacAddrEntry(u8 * pbMacAddr_p);
151 //tEplKernel EdrvDefineUnicastEntry (u8 * pbUCEntry_p);
152 //tEplKernel EdrvUndfineUnicastEntry (u8 * pbUCEntry_p);
154 tEplKernel EdrvAllocTxMsgBuffer(tEdrvTxBuffer * pBuffer_p);
155 tEplKernel EdrvReleaseTxMsgBuffer(tEdrvTxBuffer * pBuffer_p);
157 //tEplKernel EdrvWriteMsg (tBufferDescr * pbBuffer_p);
158 tEplKernel EdrvSendTxMsg(tEdrvTxBuffer * pBuffer_p);
159 tEplKernel EdrvTxMsgReady(tEdrvTxBuffer * pBuffer_p);
160 tEplKernel EdrvTxMsgStart(tEdrvTxBuffer * pBuffer_p);
162 //tEplKernel EdrvReadMsg (void);
164 // interrupt handler called by target specific interrupt handler
165 void EdrvInterruptHandler(void);
167 #endif // #ifndef _EDRV_H_