LXR linux/drivers/net/ni65.h

   1/* am7990 (lance) definitions
   2 *
   3 * This is an extension to the Linux operating system, and is covered by
   4 * same GNU General Public License that covers that work.
   5 *
   6 * Michael Hipp
   7 * email: mhipp@student.uni-tuebingen.de
   8 *
   9 * sources: (mail me or ask archie if you need them)
  10 *    crynwr-packet-driver
  11 */
  12
  13/*
  14 *      Control and Status Register 0 (CSR0) bit definitions
  15 * (R=Readable) (W=Writeable) (S=Set on write) (C-Clear on write)
  16 *
  17 */
  18
  19#define CSR0_ERR        0x8000  /* Error summary (R) */
  20#define CSR0_BABL       0x4000  /* Babble transmitter timeout error (RC) */
  21#define CSR0_CERR       0x2000  /* Collision Error (RC) */
  22#define CSR0_MISS       0x1000  /* Missed packet (RC) */
  23#define CSR0_MERR       0x0800  /* Memory Error (RC) */
  24#define CSR0_RINT       0x0400  /* Receiver Interrupt (RC) */
  25#define CSR0_TINT       0x0200  /* Transmit Interrupt (RC) */
  26#define CSR0_IDON       0x0100  /* Initialization Done (RC) */
  27#define CSR0_INTR       0x0080  /* Interrupt Flag (R) */
  28#define CSR0_INEA       0x0040  /* Interrupt Enable (RW) */
  29#define CSR0_RXON       0x0020  /* Receiver on (R) */
  30#define CSR0_TXON       0x0010  /* Transmitter on (R) */
  31#define CSR0_TDMD       0x0008  /* Transmit Demand (RS) */
  32#define CSR0_STOP       0x0004  /* Stop (RS) */
  33#define CSR0_STRT       0x0002  /* Start (RS) */
  34#define CSR0_INIT       0x0001  /* Initialize (RS) */
  35
  36#define CSR0_CLRALL    0x7f00   /* mask for all clearable bits */
  37/*
  38 *      Initialization Block  Mode operation Bit Definitions.
  39 */
  40
  41#define M_PROM          0x8000  /* Promiscuous Mode */
  42#define M_INTL          0x0040  /* Internal Loopback */
  43#define M_DRTY          0x0020  /* Disable Retry */
  44#define M_COLL          0x0010  /* Force Collision */
  45#define M_DTCR          0x0008  /* Disable Transmit CRC) */
  46#define M_LOOP          0x0004  /* Loopback */
  47#define M_DTX           0x0002  /* Disable the Transmitter */
  48#define M_DRX           0x0001  /* Disable the Receiver */
  49
  50
  51/*
  52 *      Receive message descriptor bit definitions.
  53 */
  54
  55#define RCV_OWN         0x80    /* owner bit 0 = host, 1 = lance */
  56#define RCV_ERR         0x40    /* Error Summary */
  57#define RCV_FRAM        0x20    /* Framing Error */
  58#define RCV_OFLO        0x10    /* Overflow Error */
  59#define RCV_CRC         0x08    /* CRC Error */
  60#define RCV_BUF_ERR     0x04    /* Buffer Error */
  61#define RCV_START       0x02    /* Start of Packet */
  62#define RCV_END         0x01    /* End of Packet */
  63
  64
  65/*
  66 *      Transmit  message descriptor bit definitions.
  67 */
  68
  69#define XMIT_OWN        0x80    /* owner bit 0 = host, 1 = lance */
  70#define XMIT_ERR        0x40    /* Error Summary */
  71#define XMIT_RETRY      0x10    /* more the 1 retry needed to Xmit */
  72#define XMIT_1_RETRY    0x08    /* one retry needed to Xmit */
  73#define XMIT_DEF        0x04    /* Deferred */
  74#define XMIT_START      0x02    /* Start of Packet */
  75#define XMIT_END        0x01    /* End of Packet */
  76
  77/*
  78 * transmit status (2) (valid if XMIT_ERR == 1)
  79 */
  80
  81#define XMIT_TDRMASK    0x03ff  /* time-domain-reflectometer-value */
  82#define XMIT_RTRY       0x0400  /* Failed after 16 retransmissions  */
  83#define XMIT_LCAR       0x0800  /* Loss of Carrier */
  84#define XMIT_LCOL       0x1000  /* Late collision */
  85#define XMIT_RESERV     0x2000  /* Reserved */
  86#define XMIT_UFLO       0x4000  /* Underflow (late memory) */
  87#define XMIT_BUFF       0x8000  /* Buffering error (no ENP) */
  88
  89struct init_block {
  90        unsigned short mode;
  91        unsigned char eaddr[6];
  92        unsigned char filter[8];
  93        /* bit 29-31: number of rmd's (power of 2) */
  94        u32 rrp;                /* receive ring pointer (align 8) */
  95        /* bit 29-31: number of tmd's (power of 2) */
  96        u32 trp;                /* transmit ring pointer (align 8) */
  97};
  98
  99struct rmd {                    /* Receive Message Descriptor */
 100        union {
 101                volatile u32 buffer;
 102                struct {
 103                        volatile unsigned char dummy[3];
 104                        volatile unsigned char status;
 105                } s;
 106        } u;
 107        volatile short blen;
 108        volatile unsigned short mlen;
 109};
 110
 111struct tmd {
 112        union {
 113                volatile u32 buffer;
 114                struct {
 115                        volatile unsigned char dummy[3];
 116                        volatile unsigned char status;
 117                } s;
 118        } u;
 119        volatile unsigned short blen;
 120        volatile unsigned short status2;
 121};
 122