drivers/net/ethernet/natsemi/ibmlana.h

   1 #ifndef _IBM_LANA_INCLUDE_
   2 #define _IBM_LANA_INCLUDE_
   3
   4 #ifdef _IBM_LANA_DRIVER_
   5
   6 /* maximum packet size */
   7
   8 #define PKTSIZE 1524
   9
  10 /* number of transmit buffers */
  11
  12 #define TXBUFCNT 4
  13
  14 /* Adapter ID's */
  15 #define IBM_LANA_ID 0xffe0
  16
  17 /* media enumeration - defined in a way that it fits onto the LAN/A's
  18    POS registers... */
  19
  20 typedef enum {
  21         Media_10BaseT, Media_10Base5,
  22         Media_Unknown, Media_10Base2, Media_Count
  23 } ibmlana_medium;
  24
  25 /* private structure */
  26
  27 typedef struct {
  28         unsigned int slot;              /* MCA-Slot-#                       */
  29         int realirq;                    /* memorizes actual IRQ, even when
  30                                            currently not allocated          */
  31         ibmlana_medium medium;          /* physical cannector               */
  32         u32     tdastart, txbufstart,   /* addresses                        */
  33                 rrastart, rxbufstart, rdastart, rxbufcnt, txusedcnt;
  34         int     nextrxdescr,            /* next rx descriptor to be used    */
  35                 lastrxdescr,            /* last free rx descriptor          */
  36                 nexttxdescr,            /* last tx descriptor to be used    */
  37                 currtxdescr,            /* tx descriptor currently tx'ed    */
  38                 txused[TXBUFCNT];       /* busy flags                       */
  39         void __iomem *base;
  40         spinlock_t lock;
  41 } ibmlana_priv;
  42
  43 /* this card uses quite a lot of I/O ports...luckily the MCA bus decodes
  44    a full 64K I/O range... */
  45
  46 #define IBM_LANA_IORANGE 0xa0
  47
  48 /* Command Register: */
  49
  50 #define SONIC_CMDREG     0x00
  51 #define CMDREG_HTX       0x0001 /* halt transmission                */
  52 #define CMDREG_TXP       0x0002 /* start transmission               */
  53 #define CMDREG_RXDIS     0x0004 /* disable receiver                 */
  54 #define CMDREG_RXEN      0x0008 /* enable receiver                  */
  55 #define CMDREG_STP       0x0010 /* stop timer                       */
  56 #define CMDREG_ST        0x0020 /* start timer                      */
  57 #define CMDREG_RST       0x0080 /* software reset                   */
  58 #define CMDREG_RRRA      0x0100 /* force SONIC to read first RRA    */
  59 #define CMDREG_LCAM      0x0200 /* force SONIC to read CAM descrs   */
  60
  61 /* Data Configuration Register */
  62
  63 #define SONIC_DCREG      0x02
  64 #define DCREG_EXBUS      0x8000 /* Extended Bus Mode                */
  65 #define DCREG_LBR        0x2000 /* Latched Bus Retry                */
  66 #define DCREG_PO1        0x1000 /* Programmable Outputs             */
  67 #define DCREG_PO0        0x0800
  68 #define DCREG_SBUS       0x0400 /* Synchronous Bus Mode             */
  69 #define DCREG_USR1       0x0200 /* User Definable Pins              */
  70 #define DCREG_USR0       0x0100
  71 #define DCREG_WC0        0x0000 /* 0..3 Wait States                 */
  72 #define DCREG_WC1        0x0040
  73 #define DCREG_WC2        0x0080
  74 #define DCREG_WC3        0x00c0
  75 #define DCREG_DW16       0x0000 /* 16 bit Bus Mode                  */
  76 #define DCREG_DW32       0x0020 /* 32 bit Bus Mode                  */
  77 #define DCREG_BMS        0x0010 /* Block Mode Select                */
  78 #define DCREG_RFT4       0x0000 /* 4/8/16/24 bytes RX  Threshold    */
  79 #define DCREG_RFT8       0x0004
  80 #define DCREG_RFT16      0x0008
  81 #define DCREG_RFT24      0x000c
  82 #define DCREG_TFT8       0x0000 /* 8/16/24/28 bytes TX Threshold    */
  83 #define DCREG_TFT16      0x0001
  84 #define DCREG_TFT24      0x0002
  85 #define DCREG_TFT28      0x0003
  86
  87 /* Receive Control Register */
  88
  89 #define SONIC_RCREG      0x04
  90 #define RCREG_ERR        0x8000 /* accept damaged and collided pkts */
  91 #define RCREG_RNT        0x4000 /* accept packets that are < 64     */
  92 #define RCREG_BRD        0x2000 /* accept broadcasts                */
  93 #define RCREG_PRO        0x1000 /* promiscuous mode                  */
  94 #define RCREG_AMC        0x0800 /* accept all multicasts            */
  95 #define RCREG_LB_NONE    0x0000 /* no loopback                      */
  96 #define RCREG_LB_MAC     0x0200 /* MAC loopback                     */
  97 #define RCREG_LB_ENDEC   0x0400 /* ENDEC loopback                   */
  98 #define RCREG_LB_XVR     0x0600 /* Transceiver loopback             */
  99 #define RCREG_MC         0x0100 /* Multicast received               */
 100 #define RCREG_BC         0x0080 /* Broadcast received               */
 101 #define RCREG_LPKT       0x0040 /* last packet in RBA               */
 102 #define RCREG_CRS        0x0020 /* carrier sense present            */
 103 #define RCREG_COL        0x0010 /* recv'd packet with collision     */
 104 #define RCREG_CRCR       0x0008 /* recv'd packet with CRC error     */
 105 #define RCREG_FAER       0x0004 /* recv'd packet with inv. framing  */
 106 #define RCREG_LBK        0x0002 /* recv'd loopback packet           */
 107 #define RCREG_PRX        0x0001 /* recv'd packet is OK              */
 108
 109 /* Transmit Control Register */
 110
 111 #define SONIC_TCREG      0x06
 112 #define TCREG_PINT       0x8000 /* generate interrupt after TDA read */
 113 #define TCREG_POWC       0x4000 /* timer start out of window detect */
 114 #define TCREG_CRCI       0x2000 /* inhibit CRC generation           */
 115 #define TCREG_EXDIS      0x1000 /* disable excessive deferral timer */
 116 #define TCREG_EXD        0x0400 /* excessive deferral occurred       */
 117 #define TCREG_DEF        0x0200 /* single deferral occurred          */
 118 #define TCREG_NCRS       0x0100 /* no carrier detected              */
 119 #define TCREG_CRSL       0x0080 /* carrier lost                     */
 120 #define TCREG_EXC        0x0040 /* excessive collisions occurred     */
 121 #define TCREG_OWC        0x0020 /* out of window collision occurred  */
 122 #define TCREG_PMB        0x0008 /* packet monitored bad             */
 123 #define TCREG_FU         0x0004 /* FIFO underrun                    */
 124 #define TCREG_BCM        0x0002 /* byte count mismatch of fragments */
 125 #define TCREG_PTX        0x0001 /* packet transmitted OK            */
 126
 127 /* Interrupt Mask Register */
 128
 129 #define SONIC_IMREG      0x08
 130 #define IMREG_BREN       0x4000 /* interrupt when bus retry occurred */
 131 #define IMREG_HBLEN      0x2000 /* interrupt when heartbeat lost    */
 132 #define IMREG_LCDEN      0x1000 /* interrupt when CAM loaded        */
 133 #define IMREG_PINTEN     0x0800 /* interrupt when PINT in TDA set   */
 134 #define IMREG_PRXEN      0x0400 /* interrupt when packet received   */
 135 #define IMREG_PTXEN      0x0200 /* interrupt when packet was sent   */
 136 #define IMREG_TXEREN     0x0100 /* interrupt when send failed       */
 137 #define IMREG_TCEN       0x0080 /* interrupt when timer completed   */
 138 #define IMREG_RDEEN      0x0040 /* interrupt when RDA exhausted     */
 139 #define IMREG_RBEEN      0x0020 /* interrupt when RBA exhausted     */
 140 #define IMREG_RBAEEN     0x0010 /* interrupt when RBA too short     */
 141 #define IMREG_CRCEN      0x0008 /* interrupt when CRC counter rolls */
 142 #define IMREG_FAEEN      0x0004 /* interrupt when FAE counter rolls */
 143 #define IMREG_MPEN       0x0002 /* interrupt when MP counter rolls  */
 144 #define IMREG_RFOEN      0x0001 /* interrupt when Rx FIFO overflows */
 145
 146 /* Interrupt Status Register */
 147
 148 #define SONIC_ISREG      0x0a
 149 #define ISREG_BR         0x4000 /* bus retry occurred                */
 150 #define ISREG_HBL        0x2000 /* heartbeat lost                   */
 151 #define ISREG_LCD        0x1000 /* CAM loaded                       */
 152 #define ISREG_PINT       0x0800 /* PINT in TDA set                  */
 153 #define ISREG_PKTRX      0x0400 /* packet received                  */
 154 #define ISREG_TXDN       0x0200 /* packet was sent                  */
 155 #define ISREG_TXER       0x0100 /* send failed                      */
 156 #define ISREG_TC         0x0080 /* timer completed                  */
 157 #define ISREG_RDE        0x0040 /* RDA exhausted                    */
 158 #define ISREG_RBE        0x0020 /* RBA exhausted                    */
 159 #define ISREG_RBAE       0x0010 /* RBA too short for received frame */
 160 #define ISREG_CRC        0x0008 /* CRC counter rolls over           */
 161 #define ISREG_FAE        0x0004 /* FAE counter rolls over           */
 162 #define ISREG_MP         0x0002 /* MP counter rolls  over           */
 163 #define ISREG_RFO        0x0001 /* Rx FIFO overflows                */
 164
 165 #define SONIC_UTDA       0x0c   /* current transmit descr address   */
 166 #define SONIC_CTDA       0x0e
 167
 168 #define SONIC_URDA       0x1a   /* current receive descr address    */
 169 #define SONIC_CRDA       0x1c
 170
 171 #define SONIC_CRBA0      0x1e   /* current receive buffer address   */
 172 #define SONIC_CRBA1      0x20
 173
 174 #define SONIC_RBWC0      0x22   /* word count in receive buffer     */
 175 #define SONIC_RBWC1      0x24
 176
 177 #define SONIC_EOBC       0x26   /* minimum space to be free in RBA  */
 178
 179 #define SONIC_URRA       0x28   /* upper address of CDA & Recv Area */
 180
 181 #define SONIC_RSA        0x2a   /* start of receive resource area   */
 182
 183 #define SONIC_REA        0x2c   /* end of receive resource area     */
 184
 185 #define SONIC_RRP        0x2e   /* resource read pointer            */
 186
 187 #define SONIC_RWP        0x30   /* resource write pointer           */
 188
 189 #define SONIC_CAMEPTR    0x42   /* CAM entry pointer                */
 190
 191 #define SONIC_CAMADDR2   0x44   /* CAM address ports                */
 192 #define SONIC_CAMADDR1   0x46
 193 #define SONIC_CAMADDR0   0x48
 194
 195 #define SONIC_CAMPTR     0x4c   /* lower address of CDA             */
 196
 197 #define SONIC_CAMCNT     0x4e   /* # of CAM descriptors to load     */
 198
 199 /* Data Configuration Register 2    */
 200
 201 #define SONIC_DCREG2     0x7e
 202 #define DCREG2_EXPO3     0x8000 /* extended programmable outputs    */
 203 #define DCREG2_EXPO2     0x4000
 204 #define DCREG2_EXPO1     0x2000
 205 #define DCREG2_EXPO0     0x1000
 206 #define DCREG2_HD        0x0800 /* heartbeat disable                */
 207 #define DCREG2_JD        0x0200 /* jabber timer disable             */
 208 #define DCREG2_AUTO      0x0100 /* enable AUI/TP auto selection     */
 209 #define DCREG2_XWRAP     0x0040 /* TP transceiver loopback          */
 210 #define DCREG2_PH        0x0010 /* HOLD request timing              */
 211 #define DCREG2_PCM       0x0004 /* packet compress when matched     */
 212 #define DCREG2_PCNM      0x0002 /* packet compress when not matched */
 213 #define DCREG2_RJCM      0x0001 /* inverse packet match via CAM     */
 214
 215 /* Board Control Register: Enable RAM, Interrupts... */
 216
 217 #define BCMREG           0x80
 218 #define BCMREG_RAMEN     0x80   /* switch over to RAM               */
 219 #define BCMREG_IPEND     0x40   /* interrupt pending ?              */
 220 #define BCMREG_RESET     0x08   /* reset board                      */
 221 #define BCMREG_16BIT     0x04   /* adapter in 16-bit slot           */
 222 #define BCMREG_RAMWIN    0x02   /* enable RAM window                */
 223 #define BCMREG_IEN       0x01   /* interrupt enable                 */
 224
 225 /* MAC Address PROM */
 226
 227 #define MACADDRPROM      0x92
 228
 229 /* structure of a CAM entry */
 230
 231 typedef struct {
 232         u32 index;              /* pointer into CAM area            */
 233         u32 addr0;              /* address part (bits 0..15 used)   */
 234         u32 addr1;
 235         u32 addr2;
 236 } camentry_t;
 237
 238 /* structure of a receive resource */
 239
 240 typedef struct {
 241         u32 startlo;            /* start address (bits 0..15 used)  */
 242         u32 starthi;
 243         u32 cntlo;              /* size in 16-bit quantities        */
 244         u32 cnthi;
 245 } rra_t;
 246
 247 /* structure of a receive descriptor */
 248
 249 typedef struct {
 250         u32 status;             /* packet status                    */
 251         u32 length;             /* length in bytes                  */
 252         u32 startlo;            /* start address                    */
 253         u32 starthi;
 254         u32 seqno;              /* frame sequence                   */
 255         u32 link;               /* pointer to next descriptor       */
 256         /* bit 0 = EOL                      */
 257         u32 inuse;              /* !=0 --> free for SONIC to write  */
 258 } rda_t;
 259
 260 /* structure of a transmit descriptor */
 261
 262 typedef struct {
 263         u32 status;             /* transmit status                  */
 264         u32 config;             /* value for TCR                    */
 265         u32 length;             /* total length                     */
 266         u32 fragcount;          /* number of fragments              */
 267         u32 startlo;            /* start address of fragment        */
 268         u32 starthi;
 269         u32 fraglength;         /* length of this fragment          */
 270         /* more address/length triplets may */
 271         /* follow here                      */
 272         u32 link;               /* pointer to next descriptor       */
 273         /* bit 0 = EOL                      */
 274 } tda_t;
 275
 276 #endif                          /* _IBM_LANA_DRIVER_ */
 277
 278 #endif  /* _IBM_LANA_INCLUDE_ */