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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [net/] [3c505.h] - Blame information for rev 1626

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Line No. Rev Author Line
1 1626 jcastillo
/*****************************************************************
2
 *
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 *  defines for 3Com Etherlink Plus adapter
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 *
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 *****************************************************************/
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/*
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 * I/O register offsets
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 */
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#define PORT_COMMAND    0x00    /* read/write, 8-bit */
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#define PORT_STATUS     0x02    /* read only, 8-bit */
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#define PORT_AUXDMA     0x02    /* write only, 8-bit */
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#define PORT_DATA       0x04    /* read/write, 16-bit */
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#define PORT_CONTROL    0x06    /* read/write, 8-bit */
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#define ELP_IO_EXTENT   0x10    /* size of used IO registers */
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/*
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 * host control registers bits
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 */
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#define ATTN    0x80    /* attention */
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#define FLSH    0x40    /* flush data register */
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#define DMAE    0x20    /* DMA enable */
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#define DIR     0x10    /* direction */
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#define TCEN    0x08    /* terminal count interrupt enable */
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#define CMDE    0x04    /* command register interrupt enable */
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#define HSF2    0x02    /* host status flag 2 */
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#define HSF1    0x01    /* host status flag 1 */
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/*
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 * combinations of HSF flags used for PCB transmission
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 */
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#define HSF_PCB_ACK     HSF1
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#define HSF_PCB_NAK     HSF2
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#define HSF_PCB_END     (HSF2|HSF1)
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#define HSF_PCB_MASK    (HSF2|HSF1)
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/*
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 * host status register bits
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 */
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#define HRDY    0x80    /* data register ready */
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#define HCRE    0x40    /* command register empty */
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#define ACRF    0x20    /* adapter command register full */
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/* #define DIR  0x10    direction - same as in control register */
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#define DONE    0x08    /* DMA done */
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#define ASF3    0x04    /* adapter status flag 3 */
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#define ASF2    0x02    /* adapter status flag 2 */
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#define ASF1    0x01    /* adapter status flag 1 */
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/*
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 * combinations of ASF flags used for PCB reception
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 */
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#define ASF_PCB_ACK     ASF1
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#define ASF_PCB_NAK     ASF2
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#define ASF_PCB_END     (ASF2|ASF1)
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#define ASF_PCB_MASK    (ASF2|ASF1)
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/*
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 * host aux DMA register bits
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 */
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#define DMA_BRST        0x01    /* DMA burst */
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/*
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 * maximum amount of data allowed in a PCB
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 */
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#define MAX_PCB_DATA    62
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/*****************************************************************
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 *
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 *  timeout value
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 *      this is a rough value used for loops to stop them from
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 *      locking up the whole machine in the case of failure or
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 *      error conditions
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 *
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 *****************************************************************/
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#define TIMEOUT 300
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/*****************************************************************
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 *
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 * PCB commands
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 *
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 *****************************************************************/
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enum {
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  /*
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   * host PCB commands
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   */
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  CMD_CONFIGURE_ADAPTER_MEMORY  = 0x01,
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  CMD_CONFIGURE_82586           = 0x02,
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  CMD_STATION_ADDRESS           = 0x03,
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  CMD_DMA_DOWNLOAD              = 0x04,
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  CMD_DMA_UPLOAD                = 0x05,
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  CMD_PIO_DOWNLOAD              = 0x06,
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  CMD_PIO_UPLOAD                = 0x07,
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  CMD_RECEIVE_PACKET            = 0x08,
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  CMD_TRANSMIT_PACKET           = 0x09,
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  CMD_NETWORK_STATISTICS        = 0x0a,
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  CMD_LOAD_MULTICAST_LIST       = 0x0b,
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  CMD_CLEAR_PROGRAM             = 0x0c,
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  CMD_DOWNLOAD_PROGRAM          = 0x0d,
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  CMD_EXECUTE_PROGRAM           = 0x0e,
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  CMD_SELF_TEST                 = 0x0f,
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  CMD_SET_STATION_ADDRESS       = 0x10,
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  CMD_ADAPTER_INFO              = 0x11,
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  NUM_TRANSMIT_CMDS,
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  /*
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   * adapter PCB commands
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   */
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  CMD_CONFIGURE_ADAPTER_RESPONSE        = 0x31,
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  CMD_CONFIGURE_82586_RESPONSE          = 0x32,
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  CMD_ADDRESS_RESPONSE                  = 0x33,
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  CMD_DOWNLOAD_DATA_REQUEST             = 0x34,
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  CMD_UPLOAD_DATA_REQUEST               = 0x35,
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  CMD_RECEIVE_PACKET_COMPLETE           = 0x38,
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  CMD_TRANSMIT_PACKET_COMPLETE          = 0x39,
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  CMD_NETWORK_STATISTICS_RESPONSE       = 0x3a,
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  CMD_LOAD_MULTICAST_RESPONSE           = 0x3b,
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  CMD_CLEAR_PROGRAM_RESPONSE            = 0x3c,
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  CMD_DOWNLOAD_PROGRAM_RESPONSE         = 0x3d,
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  CMD_EXECUTE_RESPONSE                  = 0x3e,
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  CMD_SELF_TEST_RESPONSE                = 0x3f,
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  CMD_SET_ADDRESS_RESPONSE              = 0x40,
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  CMD_ADAPTER_INFO_RESPONSE             = 0x41
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};
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/* Definitions for the PCB data structure */
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/* Data units */
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typedef unsigned char         byte;
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typedef unsigned short int    word;
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typedef unsigned long int     dword;
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/* Data structures */
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struct Memconf {
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        word    cmd_q,
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                rcv_q,
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                mcast,
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                frame,
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                rcv_b,
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                progs;
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};
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struct Rcv_pkt {
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        word    buf_ofs,
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                buf_seg,
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                buf_len,
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                timeout;
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};
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struct Xmit_pkt {
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        word    buf_ofs,
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                buf_seg,
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                pkt_len;
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};
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struct Rcv_resp {
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        word    buf_ofs,
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                buf_seg,
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                buf_len,
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                pkt_len,
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                timeout,
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                status;
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        dword   timetag;
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};
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struct Xmit_resp {
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        word    buf_ofs,
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                buf_seg,
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                c_stat,
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                status;
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};
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struct Netstat {
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        dword   tot_recv,
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                tot_xmit;
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        word    err_CRC,
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                err_align,
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                err_res,
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                err_ovrrun;
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};
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struct Selftest {
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        word    error;
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        union {
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                word ROM_cksum;
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                struct {
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                        word ofs, seg;
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                } RAM;
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                word i82586;
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        } failure;
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};
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struct Info {
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        byte    minor_vers,
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                major_vers;
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        word    ROM_cksum,
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                RAM_sz,
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                free_ofs,
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                free_seg;
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};
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struct Memdump {
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       word size,
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            off,
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            seg;
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};
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/*
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Primary Command Block. The most important data structure. All communication
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between the host and the adapter is done with these. (Except for the actual
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ethernet data, which has different packaging.)
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*/
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typedef struct {
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        byte    command;
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        byte    length;
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        union   {
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                struct Memconf          memconf;
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                word                    configure;
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                struct Rcv_pkt          rcv_pkt;
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                struct Xmit_pkt         xmit_pkt;
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                byte                    multicast[10][6];
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                byte                    eth_addr[6];
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                byte                    failed;
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                struct Rcv_resp         rcv_resp;
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                struct Xmit_resp        xmit_resp;
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                struct Netstat          netstat;
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                struct Selftest         selftest;
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                struct Info             info;
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                struct Memdump          memdump;
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                byte                    raw[62];
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        } data;
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} pcb_struct;
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/* These defines for 'configure' */
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#define RECV_STATION    0x00
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#define RECV_BROAD      0x01
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#define RECV_MULTI      0x02
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#define RECV_PROMISC    0x04
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#define NO_LOOPBACK     0x00
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#define INT_LOOPBACK    0x08
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#define EXT_LOOPBACK    0x10

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