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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13 modification, are permitted provided that the following conditions
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17 notice, this list of conditions and the following disclaimer.
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28 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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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
92 //---------------------------------------------------------------------------
94 //---------------------------------------------------------------------------
96 // position of a buffer in an ethernet-frame
99 kEdrvBufferFirstInFrame = 0x01, // first data buffer in an ethernet frame
100 kEdrvBufferMiddleInFrame = 0x02, // a middle data buffer in an ethernet frame
101 kEdrvBufferLastInFrame = 0x04 // last data buffer in an ethernet frame
102 } tEdrvBufferInFrame;
105 // format of a tx-buffer
106 typedef struct _tEdrvTxBuffer
108 tEplMsgType m_EplMsgType; // IN: type of EPL message, set by calling function
109 unsigned int m_uiTxMsgLen; // IN: length of message to be send (set for each transmit call)
110 // ----------------------
111 unsigned int m_uiBufferNumber; // OUT: number of the buffer, set by ethernetdriver
112 BYTE * m_pbBuffer; // OUT: pointer to the buffer, set by ethernetdriver
113 tEplNetTime m_NetTime; // OUT: Timestamp of end of transmission, set by ethernetdriver
114 // ----------------------
115 unsigned int m_uiMaxBufferLen; // IN/OUT: maximum length of the buffer
118 // format of a rx-buffer
119 typedef struct _tEdrvRxBuffer
121 tEdrvBufferInFrame m_BufferInFrame; // OUT position of received buffer in an ethernet-frame
122 unsigned int m_uiRxMsgLen; // OUT: length of received buffer (without CRC)
123 BYTE * m_pbBuffer; // OUT: pointer to the buffer, set by ethernetdriver
124 tEplNetTime m_NetTime; // OUT: Timestamp of end of receiption
130 //typedef void (*tEdrvRxHandler) (BYTE bBufferInFrame_p, tBufferDescr * pbBuffer_p);
131 //typedef void (*tEdrvRxHandler) (BYTE bBufferInFrame_p, BYTE * pbEthernetData_p, WORD wDataLen_p);
132 typedef void (*tEdrvRxHandler) (tEdrvRxBuffer * pRxBuffer_p);
133 typedef void (*tEdrvTxHandler) (tEdrvTxBuffer * pTxBuffer_p);
136 // format of init structure
139 BYTE m_abMyMacAddr[6]; // the own MAC address
141 // BYTE m_bNoOfRxBuffDescr; // number of entries in rx bufferdescriptor table
142 // tBufferDescr * m_pRxBuffDescrTable; // rx bufferdescriptor table
143 // WORD m_wRxBufferSize; // size of the whole rx buffer
145 tEdrvRxHandler m_pfnRxHandler;
146 tEdrvTxHandler m_pfnTxHandler;
151 //---------------------------------------------------------------------------
152 // function prototypes
153 //---------------------------------------------------------------------------
156 tEplKernel EdrvInit (tEdrvInitParam* pEdrvInitParam_p);
158 tEplKernel EdrvShutdown (void);
160 tEplKernel EdrvDefineRxMacAddrEntry (BYTE * pbMacAddr_p);
161 tEplKernel EdrvUndefineRxMacAddrEntry (BYTE * pbMacAddr_p);
163 //tEplKernel EdrvDefineUnicastEntry (BYTE * pbUCEntry_p);
164 //tEplKernel EdrvUndfineUnicastEntry (BYTE * pbUCEntry_p);
166 tEplKernel EdrvAllocTxMsgBuffer (tEdrvTxBuffer * pBuffer_p);
167 tEplKernel EdrvReleaseTxMsgBuffer (tEdrvTxBuffer * pBuffer_p);
169 //tEplKernel EdrvWriteMsg (tBufferDescr * pbBuffer_p);
170 tEplKernel EdrvSendTxMsg (tEdrvTxBuffer * pBuffer_p);
171 tEplKernel EdrvTxMsgReady (tEdrvTxBuffer * pBuffer_p);
172 tEplKernel EdrvTxMsgStart (tEdrvTxBuffer * pBuffer_p);
174 //tEplKernel EdrvReadMsg (void);
176 // interrupt handler called by target specific interrupt handler
177 void EdrvInterruptHandler (void);
181 #endif // #ifndef _EDRV_H_