drivers/net/wan/sbni.h

   1 /* sbni.h:  definitions for a Granch SBNI12 driver, version 5.0.0
   2  * Written 2001 Denis I.Timofeev (timofeev@granch.ru)
   3  * This file is distributed under the GNU GPL
   4  */
   5
   6 #ifndef SBNI_H
   7 #define SBNI_H
   8
   9 #ifdef SBNI_DEBUG
  10 #define DP( A ) A
  11 #else
  12 #define DP( A )
  13 #endif
  14
  15
  16 /* We don't have official vendor id yet... */
  17 #define SBNI_PCI_VENDOR         0x55
  18 #define SBNI_PCI_DEVICE         0x9f
  19
  20 #define ISA_MODE 0x00
  21 #define PCI_MODE 0x01
  22
  23 #define SBNI_IO_EXTENT  4
  24
  25 enum sbni_reg {
  26         CSR0 = 0,
  27         CSR1 = 1,
  28         DAT  = 2
  29 };
  30
  31 /* CSR0 mapping */
  32 enum {
  33         BU_EMP = 0x02,
  34         RC_CHK = 0x04,
  35         CT_ZER = 0x08,
  36         TR_REQ = 0x10,
  37         TR_RDY = 0x20,
  38         EN_INT = 0x40,
  39         RC_RDY = 0x80
  40 };
  41
  42
  43 /* CSR1 mapping */
  44 #define PR_RES 0x80
  45
  46 struct sbni_csr1 {
  47         unsigned rxl    : 5;
  48         unsigned rate   : 2;
  49         unsigned        : 1;
  50 };
  51
  52 /* fields in frame header */
  53 #define FRAME_ACK_MASK  (unsigned short)0x7000
  54 #define FRAME_LEN_MASK  (unsigned short)0x03FF
  55 #define FRAME_FIRST     (unsigned short)0x8000
  56 #define FRAME_RETRY     (unsigned short)0x0800
  57
  58 #define FRAME_SENT_BAD  (unsigned short)0x4000
  59 #define FRAME_SENT_OK   (unsigned short)0x3000
  60
  61
  62 /* state flags */
  63 enum {
  64         FL_WAIT_ACK    = 0x01,
  65         FL_NEED_RESEND = 0x02,
  66         FL_PREV_OK     = 0x04,
  67         FL_SLOW_MODE   = 0x08,
  68         FL_SECONDARY   = 0x10,
  69 #ifdef CONFIG_SBNI_MULTILINE
  70         FL_SLAVE       = 0x20,
  71 #endif
  72         FL_LINE_DOWN   = 0x40
  73 };
  74
  75
  76 enum {
  77         DEFAULT_IOBASEADDR = 0x210,
  78         DEFAULT_INTERRUPTNUMBER = 5,
  79         DEFAULT_RATE = 0,
  80         DEFAULT_FRAME_LEN = 1012
  81 };
  82
  83 #define DEF_RXL_DELTA   -1
  84 #define DEF_RXL         0xf
  85
  86 #define SBNI_SIG 0x5a
  87
  88 #define SBNI_MIN_LEN    60      /* Shortest Ethernet frame without FCS */
  89 #define SBNI_MAX_FRAME  1023
  90 #define ETHER_MAX_LEN   1518
  91
  92 #define SBNI_TIMEOUT    (HZ/10)
  93
  94 #define TR_ERROR_COUNT  32
  95 #define CHANGE_LEVEL_START_TICKS 4
  96
  97 #define SBNI_MAX_NUM_CARDS      16
  98
  99 /* internal SBNI-specific statistics */
 100 struct sbni_in_stats {
 101         u32     all_rx_number;
 102         u32     bad_rx_number;
 103         u32     timeout_number;
 104         u32     all_tx_number;
 105         u32     resend_tx_number;
 106 };
 107
 108 /* SBNI ioctl params */
 109 #define SIOCDEVGETINSTATS       SIOCDEVPRIVATE
 110 #define SIOCDEVRESINSTATS       SIOCDEVPRIVATE+1
 111 #define SIOCDEVGHWSTATE         SIOCDEVPRIVATE+2
 112 #define SIOCDEVSHWSTATE         SIOCDEVPRIVATE+3
 113 #define SIOCDEVENSLAVE          SIOCDEVPRIVATE+4
 114 #define SIOCDEVEMANSIPATE       SIOCDEVPRIVATE+5
 115
 116
 117 /* data packet for SIOCDEVGHWSTATE/SIOCDEVSHWSTATE ioctl requests */
 118 struct sbni_flags {
 119         u32     rxl             : 4;
 120         u32     rate            : 2;
 121         u32     fixed_rxl       : 1;
 122         u32     slow_mode       : 1;
 123         u32     mac_addr        : 24;
 124 };
 125
 126 /*
 127  * CRC-32 stuff
 128  */
 129 #define CRC32(c,crc) (crc32tab[((size_t)(crc) ^ (c)) & 0xff] ^ (((crc) >> 8) & 0x00FFFFFF))
 130       /* CRC generator 0xEDB88320 */
 131       /* CRC remainder 0x2144DF1C */
 132       /* CRC initial value 0x00000000 */
 133 #define CRC32_REMAINDER 0x2144DF1C
 134 #define CRC32_INITIAL 0x00000000
 135
 136 #ifndef __initdata
 137 #define __initdata
 138 #endif
 139
 140 #endif
 141