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/* uti596.h: Contains the defines and structures used by the uti596 driver */
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/*
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 * EII: March 11: Created v. 0.0
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 *
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 *  $Id: uti596.h,v 1.2 2001-09-27 12:00:20 chris Exp $
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 */
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#ifndef UTI596_H
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#define UTI596_H
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#include <rtems/error.h>
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#include <rtems/rtems_bsdnet.h>
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#include <sys/param.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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/* Ethernet statistics */
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struct enet_statistics{
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  int   rx_packets;                                                     /* total packets received */
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  int   tx_packets;                                                     /* total packets transmitted */
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  int   rx_errors;                                                      /* bad packets received */
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  int   tx_errors;                                                      /* packet transmit problems     */
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  int   rx_dropped;                                                     /* no space in buffers */
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  int   tx_dropped;
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  int   tx_retries_exceeded;  /* excessive retries */
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  int   multicast;                                                      /* multicast packets received   */
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  int   collisions;
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  /* detailed rx_errors: */
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  int   rx_length_errors;
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  int   rx_over_errors;                                 /* receiver ring buff overflow  */
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  int   rx_crc_errors;                                  /* recved pkt with crc error    */
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  int   rx_frame_errors;                                /* recv'd frame alignment error */
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  int   rx_fifo_errors;                                 /* recv'r fifo overrun          */
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  int   rx_missed_errors;                               /* receiver missed packet       */
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  /* detailed tx_errors */
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  int   tx_aborted_errors;
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  int   tx_carrier_errors;
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  int   tx_fifo_errors;
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  int   tx_heartbeat_errors;
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  int   tx_window_errors;
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  /* NIC reset errors */
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  int   nic_reset_count;      /* The number of times uti596reset() has been called. */
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};
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#define CMD_EOL                                         0x8000          /* The last command of the list, stop. */
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#define CMD_SUSP                                        0x4000          /* Suspend after doing cmd.                                      */
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#define CMD_INTR                                        0x2000          /* Interrupt after doing cmd.                            */
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#define CMD_FLEX                                        0x0008          /* Enable flexible memory model   */
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#define SCB_STAT_CX             0x8000          /* Cmd completes with 'I' bit set */
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#define SCB_STAT_FR             0x4000          /* Frame Received                 */
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#define SCB_STAT_CNA            0x2000          /* Cmd unit Not Active            */
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#define SCB_STAT_RNR            0x1000          /* Receiver Not Ready             */
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#define SCB_CUS_SUSPENDED 0x0100
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#define SCB_CUS_ACTIVE    0x0200
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#define STAT_C                                          0x8000          /* Set to 1 after execution              */
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#define STAT_B                                          0x4000          /* 1 : Cmd being executed, 0 : Cmd done. */
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#define STAT_OK                                         0x2000          /* 1: Command executed ok 0 : Error      */
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#define STAT_A                                  0x1000          /* command has been aborted              */
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#define STAT_S11                0x0800
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#define STAT_S10                0x0400
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#define STAT_S9                 0x0200
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#define STAT_S8                 0x0100
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#define STAT_S7                 0x0080
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#define STAT_S6                 0x0040
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#define STAT_S5                 0x0020
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#define STAT_MAX_COLLS          0x000F
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#define RBD_STAT_P              0x4000          /* prefetch */
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#define RBD_STAT_F              0x4000          /* used */
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#define CUC_START                                       0x0100
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#define CUC_RESUME                              0x0200
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#define CUC_SUSPEND             0x0300
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#define CUC_ABORT                                       0x0400
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#define RX_START                                        0x0010
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#define RX_RESUME                                       0x0020
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#define RX_SUSPEND                              0x0030
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#define RX_ABORT                                        0x0040
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#define RU_SUSPENDED            0x0010
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#define RU_NO_RESOURCES         0x0020
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#define RU_READY                0x0040
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#define I596_NULL ( ( void * ) 0xffffffff)
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#define UTI_596_END_OF_FRAME 0x8000
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struct i596_tbd;  /* necessary forward declaration */
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enum commands {
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  CmdNOp           = 0,
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  CmdSASetup       = 1,
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  CmdConfigure     = 2,
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  CmdMulticastList = 3,
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  CmdTx            = 4,
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  CmdTDR           = 5,
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  CmdDump          = 6,
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  CmdDiagnose      = 7
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};
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/*
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 * 82596 Dump Command Result
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 */
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typedef volatile struct i596_dump_result {
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  unsigned char bf;
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  unsigned char config_bytes[11];
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  unsigned char reserved1[2];
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  unsigned char ia_bytes[6];
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  unsigned short last_tx_status;
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  unsigned short tx_crc_byte01;
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  unsigned short tx_crc_byte23;
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  unsigned short rx_crc_byte01;
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  unsigned short rx_crc_byte23;
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  unsigned short rx_temp_mem01;
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  unsigned short rx_temp_mem23;
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  unsigned short rx_temp_mem45;
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  unsigned short last_rx_status;
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  unsigned short hash_reg01;
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  unsigned short hash_reg23;
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  unsigned short hash_reg45;
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  unsigned short hash_reg67;
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  unsigned short slot_time_counter;
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  unsigned short wait_time_counter;
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  unsigned short rx_frame_length;
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  unsigned long reserved2;
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  unsigned long cb_in3;
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  unsigned long cb_in2;
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  unsigned long cb_in1;
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  unsigned long la_cb_addr;
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  unsigned long rdb_pointer;
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  unsigned long int_memory;
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  unsigned long rfd_size;
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  unsigned long tbd_pointer;
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  unsigned long base_addr;
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  unsigned long ru_temp_reg;
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  unsigned long tcb_count;
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  unsigned long next_rb_size;
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  unsigned long next_rb_addr;
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  unsigned long curr_rb_size;
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  unsigned long la_rbd_addr;
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  unsigned long next_rbd_addr;
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  unsigned long curr_rbd_addr;
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  unsigned long curr_rb_count;
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  unsigned long next_fd_addr;
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  unsigned long curr_fd_add;
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  unsigned long temp_cu_reg;
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  unsigned long next_tb_count;
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  unsigned long buffer_addr;
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  unsigned long la_tbd_addr;
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  unsigned long next_tbd_addr;
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  unsigned long cb_command;
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  unsigned long next_cb_addr;
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  unsigned long curr_cb_addr;
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  unsigned long scb_cmd_word;
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  unsigned long scb_pointer;
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  unsigned long cb_stat_word;
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  unsigned long mm_lfsr;
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  unsigned char micro_machine_bit_array[28];
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  unsigned char cu_port[16];
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  unsigned long mm_alu;
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  unsigned long reserved3;
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  unsigned long mm_temp_a_rr;
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  unsigned long mm_temp_a;
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  unsigned long tx_dma_b_cnt;
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  unsigned long mm_input_port_addr_reg;
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  unsigned long tx_dma_addr;
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  unsigned long mm_port_reg1;
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  unsigned long rx_dma_b_cnt;
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  unsigned long mm_port_reg2;
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  unsigned long rx_dma_addr;
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  unsigned long reserved4;
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  unsigned long bus_t_timers;
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  unsigned long diu_cntrl_reg;
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  unsigned long reserved5;
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  unsigned long sysbus;
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  unsigned long biu_cntrl_reg;
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  unsigned long mm_disp_reg;
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  unsigned long mm_status_reg;
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  unsigned short dump_status;
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} i596_dump_result;
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typedef volatile struct i596_selftest {
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  unsigned long rom_signature;
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  unsigned long results;
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} i596_selftest;
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/*
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 * Action commands
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 *   (big endian, linear mode)
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 */
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typedef volatile struct i596_cmd {
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  unsigned short status;
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  unsigned short command;
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  struct i596_cmd *next;
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} i596_cmd;
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typedef volatile struct i596_nop {
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  i596_cmd cmd;
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} i596_nop;
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typedef volatile struct i596_set_add {
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  i596_cmd cmd;
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  char data[8];
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} i596_set_add;
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typedef volatile struct i596_configure {
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  i596_cmd cmd;
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  char data[16];
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} i596_configure;
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typedef volatile struct i596_tx {
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  i596_cmd cmd;
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  struct i596_tbd *pTbd;
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  unsigned short count;
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  unsigned short pad;
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  char data[6];
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  unsigned short length;
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} i596_tx;
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typedef volatile struct i596_tdr {
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  i596_cmd cmd;
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  unsigned long data;
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} i596_tdr;
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typedef volatile struct i596_dump {
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  i596_cmd cmd;
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  char *pData;
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} i596_dump;
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/*
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 * Transmit buffer descriptor
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 */
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typedef volatile struct i596_tbd {
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          unsigned short size;
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          unsigned short pad;
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          struct i596_tbd *next;
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          char *data;
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} i596_tbd;
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/*
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 * Receive buffer descriptor
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 *   (flexible memory structure)
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 */
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typedef volatile struct i596_rbd {
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          unsigned short count;
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          unsigned short offset;
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          struct i596_rbd *next;
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          char *data;
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          unsigned short size;
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          unsigned short pad;
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} i596_rbd;
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/*
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 * Receive Frame Descriptor
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 */
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typedef volatile struct i596_rfd {
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          unsigned short stat;
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          unsigned short cmd;
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          struct i596_rfd *next;
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          i596_rbd *pRbd;
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          unsigned short count;
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          unsigned short size;
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          char data [1532];
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} i596_rfd;
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/*
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 * System Control Block
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 */
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typedef volatile struct i596_scb {
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          unsigned short status;
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          unsigned short command;
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          unsigned long cmd_pointer;
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          unsigned long rfd_pointer;
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          unsigned long crc_err;
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          unsigned long align_err;
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          unsigned long resource_err;
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          unsigned long over_err;
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          unsigned long rcvdt_err;
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          unsigned long short_err;
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          unsigned short t_off;
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          unsigned short t_on;
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          i596_cmd *pCmd;
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          i596_rfd *pRfd;
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} i596_scb;
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/*
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 * Intermediate System Configuration Pointer
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 */
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typedef volatile struct i596_iscp {
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    unsigned8 null1;                                    /* Always zero */
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    unsigned8 busy;                                                                             /* Busy byte */
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    unsigned short scb_offset;                          /* Not used in linear mode */
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    unsigned long scb_pointer;          /* Swapped pointer to scb */
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    i596_scb *scb;                                                                              /* Real pointer to scb */
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} i596_iscp;
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/*
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 * System Configuration Pointer
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 */
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typedef volatile struct i596_scp {
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    unsigned long sysbus;                                                       /* Only low 8 bits are used */
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    unsigned long pad;                                                          /* Must be zero */
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    unsigned long iscp_pointer;       /* Swapped pointer to iscp */
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    i596_iscp *iscp;                                                                    /* Real pointer to iscp */
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} i596_scp;
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/*
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 * Device Dependent Data Structure
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 */
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typedef volatile struct uti596_softc {
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  struct arpcom arpcom;
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  i596_scp *pScp;                                                                                       /* Block aligned on 16 byte boundary */
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  i596_scp *base_scp;                 /* Unaligned block. Need for free() */
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  i596_iscp iscp;
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  i596_scb scb;
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  i596_set_add set_add;
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  i596_configure set_conf;
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  i596_tdr tdr;
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  i596_nop nop;
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  i596_tx  *pTxCmd;
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  i596_tbd *pTbd;
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  i596_rfd *pBeginRFA;
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  i596_rfd *pEndRFA;
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  i596_rfd *pLastUnkRFD;
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  i596_rbd *pLastUnkRBD;
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  i596_rfd *pEndSavedQueue;
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  i596_cmd *pCmdHead;
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  i596_cmd *pCmdTail;                           /* unneeded, as chaining not used, but implemented */
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  rtems_id rxDaemonTid;
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  rtems_id txDaemonTid;
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  rtems_id resetDaemonTid;
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  struct enet_statistics stats;
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  int started;
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  unsigned long rxInterrupts;
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  unsigned long txInterrupts;
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  volatile int cmdOk;
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  unsigned short * pCurrent_command_status;
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  int resetDone;
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  unsigned long txRawWait;
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  i596_rfd *pInboundFrameQueue;
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  short int rxBdCount;
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  short int txBdCount;
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  short int countRFD;
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  short int savedCount;
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  i596_rfd *pSavedRfdQueue;
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  rtems_name semaphore_name;
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  rtems_id semaphore_id;
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  char zeroes[64];
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  unsigned long rawsndcnt;
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  int nic_reset;  /* flag for requesting that ISR issue a reset quest */
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} uti596_softc_;
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#endif /* UTI596_H */

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