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/* uti596.h: Contains the defines and structures used by the uti596 driver */
/*
* EII: March 11: Created v. 0.0
*/
#ifndef UTI596_H
#define UTI596_H
#include <rtems/error.h>
#include <rtems/rtems_bsdnet.h>
#include <sys/param.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
/* Ethernet statistics */
struct enet_statistics{
int rx_packets; /* total packets received */
int tx_packets; /* total packets transmitted */
int rx_errors; /* bad packets received */
int tx_errors; /* packet transmit problems */
int rx_dropped; /* no space in buffers */
int tx_dropped;
int tx_retries_exceeded; /* excessive retries */
int multicast; /* multicast packets received */
int collisions;
/* detailed rx_errors: */
int rx_length_errors;
int rx_over_errors; /* receiver ring buff overflow */
int rx_crc_errors; /* recved pkt with crc error */
int rx_frame_errors; /* recv'd frame alignment error */
int rx_fifo_errors; /* recv'r fifo overrun */
int rx_missed_errors; /* receiver missed packet */
/* detailed tx_errors */
int tx_aborted_errors;
int tx_carrier_errors;
int tx_fifo_errors;
int tx_heartbeat_errors;
int tx_window_errors;
/* NIC reset errors */
int nic_reset_count; /* The number of times uti596reset() has been called. */
};
#define CMD_EOL 0x8000 /* The last command of the list, stop. */
#define CMD_SUSP 0x4000 /* Suspend after doing cmd. */
#define CMD_INTR 0x2000 /* Interrupt after doing cmd. */
#define CMD_FLEX 0x0008 /* Enable flexible memory model */
#define SCB_STAT_CX 0x8000 /* Cmd completes with 'I' bit set */
#define SCB_STAT_FR 0x4000 /* Frame Received */
#define SCB_STAT_CNA 0x2000 /* Cmd unit Not Active */
#define SCB_STAT_RNR 0x1000 /* Receiver Not Ready */
#define SCB_CUS_SUSPENDED 0x0100
#define SCB_CUS_ACTIVE 0x0200
#define STAT_C 0x8000 /* Set to 1 after execution */
#define STAT_B 0x4000 /* 1 : Cmd being executed, 0 : Cmd done. */
#define STAT_OK 0x2000 /* 1: Command executed ok 0 : Error */
#define STAT_A 0x1000 /* command has been aborted */
#define STAT_S11 0x0800
#define STAT_S10 0x0400
#define STAT_S9 0x0200
#define STAT_S8 0x0100
#define STAT_S7 0x0080
#define STAT_S6 0x0040
#define STAT_S5 0x0020
#define STAT_MAX_COLLS 0x000F
#define RBD_STAT_P 0x4000 /* prefetch */
#define RBD_STAT_F 0x4000 /* used */
#define CUC_START 0x0100
#define CUC_RESUME 0x0200
#define CUC_SUSPEND 0x0300
#define CUC_ABORT 0x0400
#define RX_START 0x0010
#define RX_RESUME 0x0020
#define RX_SUSPEND 0x0030
#define RX_ABORT 0x0040
#define RU_SUSPENDED 0x0010
#define RU_NO_RESOURCES 0x0020
#define RU_READY 0x0040
#define I596_NULL ( ( void * ) 0xffffffff)
#define UTI_596_END_OF_FRAME 0x8000
struct i596_tbd; /* necessary forward declaration */
enum commands {
CmdNOp = 0,
CmdSASetup = 1,
CmdConfigure = 2,
CmdMulticastList = 3,
CmdTx = 4,
CmdTDR = 5,
CmdDump = 6,
CmdDiagnose = 7
};
/*
* 82596 Dump Command Result
*/
typedef volatile struct i596_dump_result {
unsigned char bf;
unsigned char config_bytes[11];
unsigned char reserved1[2];
unsigned char ia_bytes[6];
unsigned short last_tx_status;
unsigned short tx_crc_byte01;
unsigned short tx_crc_byte23;
unsigned short rx_crc_byte01;
unsigned short rx_crc_byte23;
unsigned short rx_temp_mem01;
unsigned short rx_temp_mem23;
unsigned short rx_temp_mem45;
unsigned short last_rx_status;
unsigned short hash_reg01;
unsigned short hash_reg23;
unsigned short hash_reg45;
unsigned short hash_reg67;
unsigned short slot_time_counter;
unsigned short wait_time_counter;
unsigned short rx_frame_length;
unsigned long reserved2;
unsigned long cb_in3;
unsigned long cb_in2;
unsigned long cb_in1;
unsigned long la_cb_addr;
unsigned long rdb_pointer;
unsigned long int_memory;
unsigned long rfd_size;
unsigned long tbd_pointer;
unsigned long base_addr;
unsigned long ru_temp_reg;
unsigned long tcb_count;
unsigned long next_rb_size;
unsigned long next_rb_addr;
unsigned long curr_rb_size;
unsigned long la_rbd_addr;
unsigned long next_rbd_addr;
unsigned long curr_rbd_addr;
unsigned long curr_rb_count;
unsigned long next_fd_addr;
unsigned long curr_fd_add;
unsigned long temp_cu_reg;
unsigned long next_tb_count;
unsigned long buffer_addr;
unsigned long la_tbd_addr;
unsigned long next_tbd_addr;
unsigned long cb_command;
unsigned long next_cb_addr;
unsigned long curr_cb_addr;
unsigned long scb_cmd_word;
unsigned long scb_pointer;
unsigned long cb_stat_word;
unsigned long mm_lfsr;
unsigned char micro_machine_bit_array[28];
unsigned char cu_port[16];
unsigned long mm_alu;
unsigned long reserved3;
unsigned long mm_temp_a_rr;
unsigned long mm_temp_a;
unsigned long tx_dma_b_cnt;
unsigned long mm_input_port_addr_reg;
unsigned long tx_dma_addr;
unsigned long mm_port_reg1;
unsigned long rx_dma_b_cnt;
unsigned long mm_port_reg2;
unsigned long rx_dma_addr;
unsigned long reserved4;
unsigned long bus_t_timers;
unsigned long diu_cntrl_reg;
unsigned long reserved5;
unsigned long sysbus;
unsigned long biu_cntrl_reg;
unsigned long mm_disp_reg;
unsigned long mm_status_reg;
unsigned short dump_status;
} i596_dump_result;
typedef volatile struct i596_selftest {
unsigned long rom_signature;
unsigned long results;
} i596_selftest;
/*
* Action commands
* (big endian, linear mode)
*/
typedef volatile struct i596_cmd {
unsigned short status;
unsigned short command;
volatile struct i596_cmd *next;
} i596_cmd;
typedef volatile struct i596_nop {
i596_cmd cmd;
} i596_nop;
typedef volatile struct i596_set_add {
i596_cmd cmd;
char data[8];
} i596_set_add;
typedef volatile struct i596_configure {
i596_cmd cmd;
char data[16];
} i596_configure;
typedef volatile struct i596_tx {
i596_cmd cmd;
volatile struct i596_tbd *pTbd;
unsigned short count;
unsigned short pad;
char data[6];
unsigned short length;
} i596_tx;
typedef volatile struct i596_tdr {
i596_cmd cmd;
unsigned long data;
} i596_tdr;
typedef volatile struct i596_dump {
i596_cmd cmd;
char *pData;
} i596_dump;
/*
* Transmit buffer descriptor
*/
typedef volatile struct i596_tbd {
unsigned short size;
unsigned short pad;
volatile struct i596_tbd *next;
char *data;
} i596_tbd;
/*
* Receive buffer descriptor
* (flexible memory structure)
*/
typedef volatile struct i596_rbd {
unsigned short count;
unsigned short offset;
volatile struct i596_rbd *next;
char *data;
unsigned short size;
unsigned short pad;
} i596_rbd;
/*
* Receive Frame Descriptor
*/
typedef volatile struct i596_rfd {
unsigned short stat;
unsigned short cmd;
volatile struct i596_rfd *next;
i596_rbd *pRbd;
unsigned short count;
unsigned short size;
char data [1532];
} i596_rfd;
/*
* System Control Block
*/
typedef volatile struct i596_scb {
unsigned short status;
unsigned short command;
unsigned long cmd_pointer;
unsigned long rfd_pointer;
unsigned long crc_err;
unsigned long align_err;
unsigned long resource_err;
unsigned long over_err;
unsigned long rcvdt_err;
unsigned long short_err;
unsigned short t_off;
unsigned short t_on;
i596_cmd *pCmd;
i596_rfd *pRfd;
} i596_scb;
/*
* Intermediate System Configuration Pointer
*/
typedef volatile struct i596_iscp {
uint8_t null1; /* Always zero */
uint8_t busy; /* Busy byte */
unsigned short scb_offset; /* Not used in linear mode */
unsigned long scb_pointer; /* Swapped pointer to scb */
i596_scb *scb; /* Real pointer to scb */
} i596_iscp;
/*
* System Configuration Pointer
*/
typedef volatile struct i596_scp {
unsigned long sysbus; /* Only low 8 bits are used */
unsigned long pad; /* Must be zero */
unsigned long iscp_pointer; /* Swapped pointer to iscp */
i596_iscp *iscp; /* Real pointer to iscp */
} i596_scp;
/*
* Device Dependent Data Structure
*/
typedef volatile struct uti596_softc {
struct arpcom arpcom;
i596_scp *pScp; /* Block aligned on 16 byte boundary */
i596_scp *base_scp; /* Unaligned block. Need for free() */
i596_iscp iscp;
i596_scb scb;
i596_set_add set_add;
i596_configure set_conf;
i596_tdr tdr;
i596_nop nop;
i596_tx *pTxCmd;
i596_tbd *pTbd;
i596_rfd *pBeginRFA;
i596_rfd *pEndRFA;
i596_rfd *pLastUnkRFD;
i596_rbd *pLastUnkRBD;
i596_rfd *pEndSavedQueue;
i596_cmd *pCmdHead;
i596_cmd *pCmdTail; /* unneeded, as chaining not used, but implemented */
rtems_id rxDaemonTid;
rtems_id txDaemonTid;
rtems_id resetDaemonTid;
struct enet_statistics stats;
int started;
unsigned long rxInterrupts;
unsigned long txInterrupts;
volatile int cmdOk;
unsigned short * pCurrent_command_status;
int resetDone;
unsigned long txRawWait;
i596_rfd *pInboundFrameQueue;
short int rxBdCount;
short int txBdCount;
short int countRFD;
short int savedCount;
i596_rfd *pSavedRfdQueue;
rtems_name semaphore_name;
rtems_id semaphore_id;
char zeroes[64];
unsigned long rawsndcnt;
int nic_reset; /* flag for requesting that ISR issue a reset quest */
} uti596_softc_;
#endif /* UTI596_H */
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