drivers/net/ethernet/seeq/ether3.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *  linux/drivers/acorn/net/ether3.h
   4  *
   5  *  Copyright (C) 1995-2000 Russell King
   6  *
   7  *  network driver for Acorn/ANT Ether3 cards
   8  */
   9
  10 #ifndef _LINUX_ether3_H
  11 #define _LINUX_ether3_H
  12
  13 /* use 0 for production, 1 for verification, >2 for debug. debug flags: */
  14 #define DEBUG_TX         2
  15 #define DEBUG_RX         4
  16 #define DEBUG_INT        8
  17 #define DEBUG_IC        16
  18 #ifndef NET_DEBUG
  19 #define NET_DEBUG       0
  20 #endif
  21
  22 #define priv(dev)       ((struct dev_priv *)netdev_priv(dev))
  23
  24 /* Command register definitions & bits */
  25 #define REG_COMMAND             (priv(dev)->seeq + 0x0000)
  26 #define CMD_ENINTDMA            0x0001
  27 #define CMD_ENINTRX             0x0002
  28 #define CMD_ENINTTX             0x0004
  29 #define CMD_ENINTBUFWIN         0x0008
  30 #define CMD_ACKINTDMA           0x0010
  31 #define CMD_ACKINTRX            0x0020
  32 #define CMD_ACKINTTX            0x0040
  33 #define CMD_ACKINTBUFWIN        0x0080
  34 #define CMD_DMAON               0x0100
  35 #define CMD_RXON                0x0200
  36 #define CMD_TXON                0x0400
  37 #define CMD_DMAOFF              0x0800
  38 #define CMD_RXOFF               0x1000
  39 #define CMD_TXOFF               0x2000
  40 #define CMD_FIFOREAD            0x4000
  41 #define CMD_FIFOWRITE           0x8000
  42
  43 /* status register */
  44 #define REG_STATUS              (priv(dev)->seeq + 0x0000)
  45 #define STAT_ENINTSTAT          0x0001
  46 #define STAT_ENINTRX            0x0002
  47 #define STAT_ENINTTX            0x0004
  48 #define STAT_ENINTBUFWIN        0x0008
  49 #define STAT_INTDMA             0x0010
  50 #define STAT_INTRX              0x0020
  51 #define STAT_INTTX              0x0040
  52 #define STAT_INTBUFWIN          0x0080
  53 #define STAT_DMAON              0x0100
  54 #define STAT_RXON               0x0200
  55 #define STAT_TXON               0x0400
  56 #define STAT_FIFOFULL           0x2000
  57 #define STAT_FIFOEMPTY          0x4000
  58 #define STAT_FIFODIR            0x8000
  59
  60 /* configuration register 1 */
  61 #define REG_CONFIG1             (priv(dev)->seeq + 0x0040)
  62 #define CFG1_BUFSELSTAT0        0x0000
  63 #define CFG1_BUFSELSTAT1        0x0001
  64 #define CFG1_BUFSELSTAT2        0x0002
  65 #define CFG1_BUFSELSTAT3        0x0003
  66 #define CFG1_BUFSELSTAT4        0x0004
  67 #define CFG1_BUFSELSTAT5        0x0005
  68 #define CFG1_ADDRPROM           0x0006
  69 #define CFG1_TRANSEND           0x0007
  70 #define CFG1_LOCBUFMEM          0x0008
  71 #define CFG1_INTVECTOR          0x0009
  72 #define CFG1_RECVSPECONLY       0x0000
  73 #define CFG1_RECVSPECBROAD      0x4000
  74 #define CFG1_RECVSPECBRMULTI    0x8000
  75 #define CFG1_RECVPROMISC        0xC000
  76
  77 /* The following aren't in 8004 */
  78 #define CFG1_DMABURSTCONT       0x0000
  79 #define CFG1_DMABURST800NS      0x0010
  80 #define CFG1_DMABURST1600NS     0x0020
  81 #define CFG1_DMABURST3200NS     0x0030
  82 #define CFG1_DMABURST1          0x0000
  83 #define CFG1_DMABURST4          0x0040
  84 #define CFG1_DMABURST8          0x0080
  85 #define CFG1_DMABURST16         0x00C0
  86 #define CFG1_RECVCOMPSTAT0      0x0100
  87 #define CFG1_RECVCOMPSTAT1      0x0200
  88 #define CFG1_RECVCOMPSTAT2      0x0400
  89 #define CFG1_RECVCOMPSTAT3      0x0800
  90 #define CFG1_RECVCOMPSTAT4      0x1000
  91 #define CFG1_RECVCOMPSTAT5      0x2000
  92
  93 /* configuration register 2 */
  94 #define REG_CONFIG2             (priv(dev)->seeq + 0x0080)
  95 #define CFG2_BYTESWAP           0x0001
  96 #define CFG2_ERRENCRC           0x0008
  97 #define CFG2_ERRENDRIBBLE       0x0010
  98 #define CFG2_ERRSHORTFRAME      0x0020
  99 #define CFG2_SLOTSELECT         0x0040
 100 #define CFG2_PREAMSELECT        0x0080
 101 #define CFG2_ADDRLENGTH         0x0100
 102 #define CFG2_RECVCRC            0x0200
 103 #define CFG2_XMITNOCRC          0x0400
 104 #define CFG2_LOOPBACK           0x0800
 105 #define CFG2_CTRLO              0x1000
 106 #define CFG2_RESET              0x8000
 107
 108 #define REG_RECVEND             (priv(dev)->seeq + 0x00c0)
 109
 110 #define REG_BUFWIN              (priv(dev)->seeq + 0x0100)
 111
 112 #define REG_RECVPTR             (priv(dev)->seeq + 0x0140)
 113
 114 #define REG_TRANSMITPTR         (priv(dev)->seeq + 0x0180)
 115
 116 #define REG_DMAADDR             (priv(dev)->seeq + 0x01c0)
 117
 118 /*
 119  * Cards transmit/receive headers
 120  */
 121 #define TX_NEXT                 (0xffff)
 122 #define TXHDR_ENBABBLEINT       (1 << 16)
 123 #define TXHDR_ENCOLLISIONINT    (1 << 17)
 124 #define TXHDR_EN16COLLISION     (1 << 18)
 125 #define TXHDR_ENSUCCESS         (1 << 19)
 126 #define TXHDR_DATAFOLLOWS       (1 << 21)
 127 #define TXHDR_CHAINCONTINUE     (1 << 22)
 128 #define TXHDR_TRANSMIT          (1 << 23)
 129 #define TXSTAT_BABBLED          (1 << 24)
 130 #define TXSTAT_COLLISION        (1 << 25)
 131 #define TXSTAT_16COLLISIONS     (1 << 26)
 132 #define TXSTAT_DONE             (1 << 31)
 133
 134 #define RX_NEXT                 (0xffff)
 135 #define RXHDR_CHAINCONTINUE     (1 << 6)
 136 #define RXHDR_RECEIVE           (1 << 7)
 137 #define RXSTAT_OVERSIZE         (1 << 8)
 138 #define RXSTAT_CRCERROR         (1 << 9)
 139 #define RXSTAT_DRIBBLEERROR     (1 << 10)
 140 #define RXSTAT_SHORTPACKET      (1 << 11)
 141 #define RXSTAT_DONE             (1 << 15)
 142
 143
 144 #define TX_START        0x0000
 145 #define TX_END          0x6000
 146 #define RX_START        0x6000
 147 #define RX_LEN          0xA000
 148 #define RX_END          0x10000
 149 /* must be a power of 2 and greater than MAX_TX_BUFFERED */
 150 #define MAX_TXED        16
 151 #define MAX_TX_BUFFERED 10
 152
 153 struct dev_priv {
 154     void __iomem *base;
 155     void __iomem *seeq;
 156     struct {
 157         unsigned int command;
 158         unsigned int config1;
 159         unsigned int config2;
 160     } regs;
 161     unsigned char tx_head;              /* buffer nr to insert next packet       */
 162     unsigned char tx_tail;              /* buffer nr of transmitting packet      */
 163     unsigned int rx_head;               /* address to fetch next packet from     */
 164     struct timer_list timer;
 165     struct net_device *dev;
 166     int broken;                         /* 0 = ok, 1 = something went wrong      */
 167 };
 168
 169 struct ether3_data {
 170         const char name[8];
 171         unsigned long base_offset;
 172 };
 173
 174 #endif