ni65.h 3.7 KB

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