FreeBSD/Linux Kernel Cross Reference
sys/pci/if_dcreg.h

     /*
      * Copyright (c) 1997, 1998, 1999
      *      Bill Paul <wpaul@ee.columbia.edu>.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Bill Paul.
     * 4. Neither the name of the author nor the names of any co-contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     * THE POSSIBILITY OF SUCH DAMAGE.
     *
     * $FreeBSD: releng/5.1/sys/pci/if_dcreg.h 114957 2003-05-12 19:50:21Z mbr $
     */
    
    /*
     * 21143 and clone common register definitions.
     */
    
    #define DC_BUSCTL               0x00    /* bus control */
    #define DC_TXSTART              0x08    /* tx start demand */
    #define DC_RXSTART              0x10    /* rx start demand */
    #define DC_RXADDR               0x18    /* rx descriptor list start addr */
    #define DC_TXADDR               0x20    /* tx descriptor list start addr */
    #define DC_ISR                  0x28    /* interrupt status register */
    #define DC_NETCFG               0x30    /* network config register */
    #define DC_IMR                  0x38    /* interrupt mask */
    #define DC_FRAMESDISCARDED      0x40    /* # of discarded frames */
    #define DC_SIO                  0x48    /* MII and ROM/EEPROM access */
    #define DC_ROM                  0x50    /* ROM programming address */
    #define DC_TIMER                0x58    /* general timer */
    #define DC_10BTSTAT             0x60    /* SIA status */
    #define DC_SIARESET             0x68    /* SIA connectivity */
    #define DC_10BTCTRL             0x70    /* SIA transmit and receive */
    #define DC_WATCHDOG             0x78    /* SIA and general purpose port */
    #define DC_SIAGP                0x78    /* SIA and general purpose port (X3201) */
    
    /*
     * There are two general 'types' of MX chips that we need to be
     * concerned with. One is the original 98713, which has its internal
     * NWAY support controlled via the MDIO bits in the serial I/O
     * register. The other is everything else (from the 98713A on up),
     * which has its internal NWAY controlled via CSR13, CSR14 and CSR15,
     * just like the 21143. This type setting also governs which of the
     * 'magic' numbers we write to CSR16. The PNIC II falls into the
     * 98713A/98715/98715A/98725 category.
     */
    #define DC_TYPE_98713           0x1
    #define DC_TYPE_98713A          0x2
    #define DC_TYPE_987x5           0x3
    
    /* Other type of supported chips. */
    #define DC_TYPE_21143           0x4     /* Intel 21143 */
    #define DC_TYPE_ASIX            0x5     /* ASIX AX88140A/AX88141 */
    #define DC_TYPE_AL981           0x6     /* ADMtek AL981 Comet */
    #define DC_TYPE_AN985           0x7     /* ADMtek AN985 Centaur */
    #define DC_TYPE_DM9102          0x8     /* Davicom DM9102 */
    #define DC_TYPE_PNICII          0x9     /* 82c115 PNIC II */
    #define DC_TYPE_PNIC            0xA     /* 82c168/82c169 PNIC I */
    #define DC_TYPE_XIRCOM          0xB     /* Xircom X3201 */
    #define DC_TYPE_CONEXANT        0xC     /* Conexant LANfinity RS7112 */
    
    #define DC_IS_MACRONIX(x)                       \
            (x->dc_type == DC_TYPE_98713 ||         \
             x->dc_type == DC_TYPE_98713A ||        \
             x->dc_type == DC_TYPE_987x5)
    
    #define DC_IS_ADMTEK(x)                         \
            (x->dc_type == DC_TYPE_AL981 ||         \
             x->dc_type == DC_TYPE_AN985)
    
    #define DC_IS_INTEL(x)          (x->dc_type == DC_TYPE_21143)
    #define DC_IS_ASIX(x)           (x->dc_type == DC_TYPE_ASIX)
    #define DC_IS_COMET(x)          (x->dc_type == DC_TYPE_AL981)
    #define DC_IS_CENTAUR(x)        (x->dc_type == DC_TYPE_AN985)
    #define DC_IS_DAVICOM(x)        (x->dc_type == DC_TYPE_DM9102)
    #define DC_IS_PNICII(x)         (x->dc_type == DC_TYPE_PNICII)
    #define DC_IS_PNIC(x)           (x->dc_type == DC_TYPE_PNIC)
    #define DC_IS_XIRCOM(x)         (x->dc_type == DC_TYPE_XIRCOM)
    #define DC_IS_CONEXANT(x)       (x->dc_type == DC_TYPE_CONEXANT)
   
   /* MII/symbol mode port types */
   #define DC_PMODE_MII            0x1
   #define DC_PMODE_SYM            0x2
   #define DC_PMODE_SIA            0x3
   
   /*
    * Bus control bits.
    */
   #define DC_BUSCTL_RESET         0x00000001
   #define DC_BUSCTL_ARBITRATION   0x00000002
   #define DC_BUSCTL_SKIPLEN       0x0000007C
   #define DC_BUSCTL_BUF_BIGENDIAN 0x00000080
   #define DC_BUSCTL_BURSTLEN      0x00003F00
   #define DC_BUSCTL_CACHEALIGN    0x0000C000
   #define DC_BUSCTL_TXPOLL        0x000E0000
   #define DC_BUSCTL_DBO           0x00100000
   #define DC_BUSCTL_MRME          0x00200000
   #define DC_BUSCTL_MRLE          0x00800000
   #define DC_BUSCTL_MWIE          0x01000000
   #define DC_BUSCTL_ONNOW_ENB     0x04000000
   
   #define DC_SKIPLEN_1LONG        0x00000004
   #define DC_SKIPLEN_2LONG        0x00000008
   #define DC_SKIPLEN_3LONG        0x00000010
   #define DC_SKIPLEN_4LONG        0x00000020
   #define DC_SKIPLEN_5LONG        0x00000040
   
   #define DC_CACHEALIGN_NONE      0x00000000
   #define DC_CACHEALIGN_8LONG     0x00004000
   #define DC_CACHEALIGN_16LONG    0x00008000
   #define DC_CACHEALIGN_32LONG    0x0000C000
   
   #define DC_BURSTLEN_USECA       0x00000000
   #define DC_BURSTLEN_1LONG       0x00000100
   #define DC_BURSTLEN_2LONG       0x00000200
   #define DC_BURSTLEN_4LONG       0x00000400
   #define DC_BURSTLEN_8LONG       0x00000800
   #define DC_BURSTLEN_16LONG      0x00001000
   #define DC_BURSTLEN_32LONG      0x00002000
   
   #define DC_TXPOLL_OFF           0x00000000
   #define DC_TXPOLL_1             0x00020000
   #define DC_TXPOLL_2             0x00040000
   #define DC_TXPOLL_3             0x00060000
   #define DC_TXPOLL_4             0x00080000
   #define DC_TXPOLL_5             0x000A0000
   #define DC_TXPOLL_6             0x000C0000
   #define DC_TXPOLL_7             0x000E0000
   
   /*
    * Interrupt status bits.
    */
   #define DC_ISR_TX_OK            0x00000001
   #define DC_ISR_TX_IDLE          0x00000002
   #define DC_ISR_TX_NOBUF         0x00000004
   #define DC_ISR_TX_JABBERTIMEO   0x00000008
   #define DC_ISR_LINKGOOD         0x00000010
   #define DC_ISR_TX_UNDERRUN      0x00000020
   #define DC_ISR_RX_OK            0x00000040
   #define DC_ISR_RX_NOBUF         0x00000080
   #define DC_ISR_RX_READ          0x00000100
   #define DC_ISR_RX_WATDOGTIMEO   0x00000200
   #define DC_ISR_TX_EARLY         0x00000400
   #define DC_ISR_TIMER_EXPIRED    0x00000800
   #define DC_ISR_LINKFAIL         0x00001000
   #define DC_ISR_BUS_ERR          0x00002000
   #define DC_ISR_RX_EARLY         0x00004000
   #define DC_ISR_ABNORMAL         0x00008000
   #define DC_ISR_NORMAL           0x00010000
   #define DC_ISR_RX_STATE         0x000E0000
   #define DC_ISR_TX_STATE         0x00700000
   #define DC_ISR_BUSERRTYPE       0x03800000
   #define DC_ISR_100MBPSLINK      0x08000000
   #define DC_ISR_MAGICKPACK       0x10000000
   
   #define DC_RXSTATE_STOPPED      0x00000000      /* 000 - Stopped */
   #define DC_RXSTATE_FETCH        0x00020000      /* 001 - Fetching descriptor */
   #define DC_RXSTATE_ENDCHECK     0x00040000      /* 010 - check for rx end */
   #define DC_RXSTATE_WAIT         0x00060000      /* 011 - waiting for packet */
   #define DC_RXSTATE_SUSPEND      0x00080000      /* 100 - suspend rx */
   #define DC_RXSTATE_CLOSE        0x000A0000      /* 101 - close tx desc */
   #define DC_RXSTATE_FLUSH        0x000C0000      /* 110 - flush from FIFO */
   #define DC_RXSTATE_DEQUEUE      0x000E0000      /* 111 - dequeue from FIFO */
   
   #define DC_TXSTATE_RESET        0x00000000      /* 000 - reset */
   #define DC_TXSTATE_FETCH        0x00100000      /* 001 - fetching descriptor */
   #define DC_TXSTATE_WAITEND      0x00200000      /* 010 - wait for tx end */
   #define DC_TXSTATE_READING      0x00300000      /* 011 - read and enqueue */
   #define DC_TXSTATE_RSVD         0x00400000      /* 100 - reserved */
   #define DC_TXSTATE_SETUP        0x00500000      /* 101 - setup packet */
   #define DC_TXSTATE_SUSPEND      0x00600000      /* 110 - suspend tx */
   #define DC_TXSTATE_CLOSE        0x00700000      /* 111 - close tx desc */
   
   /*
    * Network config bits.
    */
   #define DC_NETCFG_RX_HASHPERF   0x00000001
   #define DC_NETCFG_RX_ON         0x00000002
   #define DC_NETCFG_RX_HASHONLY   0x00000004
   #define DC_NETCFG_RX_BADFRAMES  0x00000008
   #define DC_NETCFG_RX_INVFILT    0x00000010
   #define DC_NETCFG_BACKOFFCNT    0x00000020
   #define DC_NETCFG_RX_PROMISC    0x00000040
   #define DC_NETCFG_RX_ALLMULTI   0x00000080
   #define DC_NETCFG_FULLDUPLEX    0x00000200
   #define DC_NETCFG_LOOPBACK      0x00000C00
   #define DC_NETCFG_FORCECOLL     0x00001000
   #define DC_NETCFG_TX_ON         0x00002000
   #define DC_NETCFG_TX_THRESH     0x0000C000
   #define DC_NETCFG_TX_BACKOFF    0x00020000
   #define DC_NETCFG_PORTSEL       0x00040000      /* 0 == 10, 1 == 100 */
   #define DC_NETCFG_HEARTBEAT     0x00080000
   #define DC_NETCFG_STORENFWD     0x00200000
   #define DC_NETCFG_SPEEDSEL      0x00400000      /* 1 == 10, 0 == 100 */
   #define DC_NETCFG_PCS           0x00800000
   #define DC_NETCFG_SCRAMBLER     0x01000000
   #define DC_NETCFG_NO_RXCRC      0x02000000
   #define DC_NETCFG_RX_ALL        0x40000000
   #define DC_NETCFG_CAPEFFECT     0x80000000
   
   #define DC_OPMODE_NORM          0x00000000
   #define DC_OPMODE_INTLOOP       0x00000400
   #define DC_OPMODE_EXTLOOP       0x00000800
   
   #if 0
   #define DC_TXTHRESH_72BYTES     0x00000000
   #define DC_TXTHRESH_96BYTES     0x00004000
   #define DC_TXTHRESH_128BYTES    0x00008000
   #define DC_TXTHRESH_160BYTES    0x0000C000
   #endif
   
   #define DC_TXTHRESH_MIN         0x00000000
   #define DC_TXTHRESH_INC         0x00004000
   #define DC_TXTHRESH_MAX         0x0000C000
   
   
   /*
    * Interrupt mask bits.
    */
   #define DC_IMR_TX_OK            0x00000001
   #define DC_IMR_TX_IDLE          0x00000002
   #define DC_IMR_TX_NOBUF         0x00000004
   #define DC_IMR_TX_JABBERTIMEO   0x00000008
   #define DC_IMR_LINKGOOD         0x00000010
   #define DC_IMR_TX_UNDERRUN      0x00000020
   #define DC_IMR_RX_OK            0x00000040
   #define DC_IMR_RX_NOBUF         0x00000080
   #define DC_IMR_RX_READ          0x00000100
   #define DC_IMR_RX_WATDOGTIMEO   0x00000200
   #define DC_IMR_TX_EARLY         0x00000400
   #define DC_IMR_TIMER_EXPIRED    0x00000800
   #define DC_IMR_LINKFAIL         0x00001000
   #define DC_IMR_BUS_ERR          0x00002000
   #define DC_IMR_RX_EARLY         0x00004000
   #define DC_IMR_ABNORMAL         0x00008000
   #define DC_IMR_NORMAL           0x00010000
   #define DC_IMR_100MBPSLINK      0x08000000
   #define DC_IMR_MAGICKPACK       0x10000000
   
   #define DC_INTRS        \
           (DC_IMR_RX_OK|DC_IMR_TX_OK|DC_IMR_RX_NOBUF|DC_IMR_RX_WATDOGTIMEO|\
           DC_IMR_TX_NOBUF|DC_IMR_TX_UNDERRUN|DC_IMR_BUS_ERR|              \
           DC_IMR_ABNORMAL|DC_IMR_NORMAL/*|DC_IMR_TX_EARLY*/)
   /*
    * Serial I/O (EEPROM/ROM) bits.
    */
   #define DC_SIO_EE_CS            0x00000001      /* EEPROM chip select */
   #define DC_SIO_EE_CLK           0x00000002      /* EEPROM clock */
   #define DC_SIO_EE_DATAIN        0x00000004      /* EEPROM data output */
   #define DC_SIO_EE_DATAOUT       0x00000008      /* EEPROM data input */
   #define DC_SIO_ROMDATA4         0x00000010
   #define DC_SIO_ROMDATA5         0x00000020
   #define DC_SIO_ROMDATA6         0x00000040
   #define DC_SIO_ROMDATA7         0x00000080
   #define DC_SIO_EESEL            0x00000800
   #define DC_SIO_ROMSEL           0x00001000
   #define DC_SIO_ROMCTL_WRITE     0x00002000
   #define DC_SIO_ROMCTL_READ      0x00004000
   #define DC_SIO_MII_CLK          0x00010000      /* MDIO clock */
   #define DC_SIO_MII_DATAOUT      0x00020000      /* MDIO data out */
   #define DC_SIO_MII_DIR          0x00040000      /* MDIO dir */
   #define DC_SIO_MII_DATAIN       0x00080000      /* MDIO data in */
   
   #define DC_EECMD_WRITE          0x140
   #define DC_EECMD_READ           0x180
   #define DC_EECMD_ERASE          0x1c0
   
   #define DC_EE_NODEADDR_OFFSET   0x70
   #define DC_EE_NODEADDR          10
   
   /*
    * General purpose timer register
    */
   #define DC_TIMER_VALUE          0x0000FFFF
   #define DC_TIMER_CONTINUOUS     0x00010000
   
   /*
    * 10baseT status register
    */
   #define DC_TSTAT_MIIACT         0x00000001 /* MII port activity */
   #define DC_TSTAT_LS100          0x00000002 /* link status of 100baseTX */
   #define DC_TSTAT_LS10           0x00000004 /* link status of 10baseT */
   #define DC_TSTAT_AUTOPOLARITY   0x00000008
   #define DC_TSTAT_AUIACT         0x00000100 /* AUI activity */
   #define DC_TSTAT_10BTACT        0x00000200 /* 10baseT activity */
   #define DC_TSTAT_NSN            0x00000400 /* non-stable FLPs detected */
   #define DC_TSTAT_REMFAULT       0x00000800
   #define DC_TSTAT_ANEGSTAT       0x00007000
   #define DC_TSTAT_LP_CAN_NWAY    0x00008000 /* link partner supports NWAY */
   #define DC_TSTAT_LPCODEWORD     0xFFFF0000 /* link partner's code word */
   
   #define DC_ASTAT_DISABLE        0x00000000
   #define DC_ASTAT_TXDISABLE      0x00001000
   #define DC_ASTAT_ABDETECT       0x00002000
   #define DC_ASTAT_ACKDETECT      0x00003000
   #define DC_ASTAT_CMPACKDETECT   0x00004000
   #define DC_ASTAT_AUTONEGCMP     0x00005000
   #define DC_ASTAT_LINKCHECK      0x00006000
   
   /*
    * PHY reset register
    */
   #define DC_SIA_RESET            0x00000001
   #define DC_SIA_AUI              0x00000008 /* AUI or 10baseT */
   
   /*
    * 10baseT control register
    */
   #define DC_TCTL_ENCODER_ENB     0x00000001
   #define DC_TCTL_LOOPBACK        0x00000002
   #define DC_TCTL_DRIVER_ENB      0x00000004
   #define DC_TCTL_LNKPULSE_ENB    0x00000008
   #define DC_TCTL_HALFDUPLEX      0x00000040
   #define DC_TCTL_AUTONEGENBL     0x00000080
   #define DC_TCTL_RX_SQUELCH      0x00000100
   #define DC_TCTL_COLL_SQUELCH    0x00000200
   #define DC_TCTL_COLL_DETECT     0x00000400
   #define DC_TCTL_SQE_ENB         0x00000800
   #define DC_TCTL_LINKTEST        0x00001000
   #define DC_TCTL_AUTOPOLARITY    0x00002000
   #define DC_TCTL_SET_POL_PLUS    0x00004000
   #define DC_TCTL_AUTOSENSE       0x00008000      /* 10bt/AUI autosense */
   #define DC_TCTL_100BTXHALF      0x00010000
   #define DC_TCTL_100BTXFULL      0x00020000
   #define DC_TCTL_100BT4          0x00040000
   
   /*
    * Watchdog timer register
    */
   #define DC_WDOG_JABBERDIS       0x00000001
   #define DC_WDOG_HOSTUNJAB       0x00000002
   #define DC_WDOG_JABBERCLK       0x00000004
   #define DC_WDOG_RXWDOGDIS       0x00000010
   #define DC_WDOG_RXWDOGCLK       0x00000020
   #define DC_WDOG_MUSTBEZERO      0x00000100
   #define DC_WDOG_AUIBNC          0x00100000
   #define DC_WDOG_ACTIVITY        0x00200000
   #define DC_WDOG_RX_MATCH        0x00400000
   #define DC_WDOG_LINK            0x00800000
   #define DC_WDOG_CTLWREN         0x08000000
   
   /*
    * SIA and General Purpose Port register (X3201)
    */
   #define DC_SIAGP_RXMATCH        0x40000000
   #define DC_SIAGP_INT1           0x20000000
   #define DC_SIAGP_INT0           0x10000000
   #define DC_SIAGP_WRITE_EN       0x08000000
   #define DC_SIAGP_RXMATCH_EN     0x04000000
   #define DC_SIAGP_INT1_EN        0x02000000
   #define DC_SIAGP_INT0_EN        0x01000000
   #define DC_SIAGP_LED3           0x00800000
   #define DC_SIAGP_LED2           0x00400000
   #define DC_SIAGP_LED1           0x00200000
   #define DC_SIAGP_LED0           0x00100000
   #define DC_SIAGP_MD_GP3_OUTPUT  0x00080000
   #define DC_SIAGP_MD_GP2_OUTPUT  0x00040000
   #define DC_SIAGP_MD_GP1_OUTPUT  0x00020000
   #define DC_SIAGP_MD_GP0_OUTPUT  0x00010000
   
   /*
    * Size of a setup frame.
    */
   #define DC_SFRAME_LEN           192
   
   /*
    * 21x4x TX/RX list structure.
    */
   
   struct dc_desc {
           u_int32_t               dc_status;
           u_int32_t               dc_ctl;
           u_int32_t               dc_ptr1;
           u_int32_t               dc_ptr2;
   };
   
   #define dc_data         dc_ptr1
   #define dc_next         dc_ptr2
   
   #define DC_RXSTAT_FIFOOFLOW     0x00000001
   #define DC_RXSTAT_CRCERR        0x00000002
   #define DC_RXSTAT_DRIBBLE       0x00000004
   #define DC_RXSTAT_MIIERE        0x00000008
   #define DC_RXSTAT_WATCHDOG      0x00000010
   #define DC_RXSTAT_FRAMETYPE     0x00000020      /* 0 == IEEE 802.3 */
   #define DC_RXSTAT_COLLSEEN      0x00000040
   #define DC_RXSTAT_GIANT         0x00000080
   #define DC_RXSTAT_LASTFRAG      0x00000100
   #define DC_RXSTAT_FIRSTFRAG     0x00000200
   #define DC_RXSTAT_MULTICAST     0x00000400
   #define DC_RXSTAT_RUNT          0x00000800
   #define DC_RXSTAT_RXTYPE        0x00003000
   #define DC_RXSTAT_DE            0x00004000
   #define DC_RXSTAT_RXERR         0x00008000
   #define DC_RXSTAT_RXLEN         0x3FFF0000
   #define DC_RXSTAT_OWN           0x80000000
   
   #define DC_RXBYTES(x)           ((x & DC_RXSTAT_RXLEN) >> 16)
   #define DC_RXSTAT (DC_RXSTAT_FIRSTFRAG|DC_RXSTAT_LASTFRAG|DC_RXSTAT_OWN)
   
   #define DC_RXCTL_BUFLEN1        0x00000FFF
   #define DC_RXCTL_BUFLEN2        0x00FFF000
   #define DC_RXCTL_RLINK          0x01000000
   #define DC_RXCTL_RLAST          0x02000000
   
   #define DC_TXSTAT_DEFER         0x00000001
   #define DC_TXSTAT_UNDERRUN      0x00000002
   #define DC_TXSTAT_LINKFAIL      0x00000003
   #define DC_TXSTAT_COLLCNT       0x00000078
   #define DC_TXSTAT_SQE           0x00000080
   #define DC_TXSTAT_EXCESSCOLL    0x00000100
   #define DC_TXSTAT_LATECOLL      0x00000200
   #define DC_TXSTAT_NOCARRIER     0x00000400
   #define DC_TXSTAT_CARRLOST      0x00000800
   #define DC_TXSTAT_JABTIMEO      0x00004000
   #define DC_TXSTAT_ERRSUM        0x00008000
   #define DC_TXSTAT_OWN           0x80000000
   
   #define DC_TXCTL_BUFLEN1        0x000007FF
   #define DC_TXCTL_BUFLEN2        0x003FF800
   #define DC_TXCTL_FILTTYPE0      0x00400000
   #define DC_TXCTL_PAD            0x00800000
   #define DC_TXCTL_TLINK          0x01000000
   #define DC_TXCTL_TLAST          0x02000000
   #define DC_TXCTL_NOCRC          0x04000000
   #define DC_TXCTL_SETUP          0x08000000
   #define DC_TXCTL_FILTTYPE1      0x10000000
   #define DC_TXCTL_FIRSTFRAG      0x20000000
   #define DC_TXCTL_LASTFRAG       0x40000000
   #define DC_TXCTL_FINT           0x80000000
   
   #define DC_FILTER_PERFECT       0x00000000
   #define DC_FILTER_HASHPERF      0x00400000
   #define DC_FILTER_INVERSE       0x10000000
   #define DC_FILTER_HASHONLY      0x10400000
   
   #define DC_MAXFRAGS             16
   #ifdef DEVICE_POLLING
   #define DC_RX_LIST_CNT          192
   #else
   #define DC_RX_LIST_CNT          64
   #endif
   #define DC_TX_LIST_CNT          256
   #define DC_MIN_FRAMELEN         60
   #define DC_RXLEN                1536
   
   #define DC_INC(x, y)    (x) = (x + 1) % y
   
   struct dc_list_data {
           struct dc_desc          dc_rx_list[DC_RX_LIST_CNT];
           struct dc_desc          dc_tx_list[DC_TX_LIST_CNT];
   };
   
   struct dc_chain_data {
           struct mbuf             *dc_rx_chain[DC_RX_LIST_CNT];
           struct mbuf             *dc_tx_chain[DC_TX_LIST_CNT];
           u_int32_t               dc_sbuf[DC_SFRAME_LEN/sizeof(u_int32_t)];
           u_int8_t                dc_pad[DC_MIN_FRAMELEN];
           int                     dc_tx_prod;
           int                     dc_tx_cons;
           int                     dc_tx_cnt;
           int                     dc_rx_prod;
   };
   
   struct dc_mediainfo {
           int                     dc_media;
           u_int8_t                *dc_gp_ptr;
           u_int8_t                dc_gp_len;
           u_int8_t                *dc_reset_ptr;
           u_int8_t                dc_reset_len;
           struct dc_mediainfo     *dc_next;
   };
   
   
   struct dc_type {
           u_int16_t               dc_vid;
           u_int16_t               dc_did;
           char                    *dc_name;
   };
   
   struct dc_mii_frame {
           u_int8_t                mii_stdelim;
           u_int8_t                mii_opcode;
           u_int8_t                mii_phyaddr;
           u_int8_t                mii_regaddr;
           u_int8_t                mii_turnaround;
           u_int16_t               mii_data;
   };
   
   /*
    * MII constants
    */
   #define DC_MII_STARTDELIM       0x01
   #define DC_MII_READOP           0x02
   #define DC_MII_WRITEOP          0x01
   #define DC_MII_TURNAROUND       0x02
   
   
   /*
    * Registers specific to clone devices.
    * This mainly relates to RX filter programming: not all 21x4x clones
    * use the standard DEC filter programming mechanism.
    */
   
   /*
    * ADMtek specific registers and constants for the AL981 and AN985.
    * The AN985 doesn't use the magic PHY registers.
    */
   #define DC_AL_CR                0x88    /* command register */
   #define DC_AL_PAR0              0xA4    /* station address */
   #define DC_AL_PAR1              0xA8    /* station address */
   #define DC_AL_MAR0              0xAC    /* multicast hash filter */
   #define DC_AL_MAR1              0xB0    /* multicast hash filter */
   #define DC_AL_BMCR              0xB4    /* built in PHY control */
   #define DC_AL_BMSR              0xB8    /* built in PHY status */
   #define DC_AL_VENID             0xBC    /* built in PHY ID0 */
   #define DC_AL_DEVID             0xC0    /* built in PHY ID1 */
   #define DC_AL_ANAR              0xC4    /* built in PHY autoneg advert */
   #define DC_AL_LPAR              0xC8    /* bnilt in PHY link part. ability */
   #define DC_AL_ANER              0xCC    /* built in PHY autoneg expansion */
   
   #define DC_AL_CR_ATUR           0x00000001 /* automatic TX underrun recovery */
   #define DC_ADMTEK_PHYADDR       0x1
   #define DC_AL_EE_NODEADDR       4
   /* End of ADMtek specific registers */
   
   /*
    * ASIX specific registers.
    */
   #define DC_AX_FILTIDX           0x68    /* RX filter index */
   #define DC_AX_FILTDATA          0x70    /* RX filter data */
   
   /*
    * Special ASIX-specific bits in the ASIX NETCFG register (CSR6).
    */
   #define DC_AX_NETCFG_RX_BROAD   0x00000100 
   
   /*
    * RX Filter Index Register values
    */
   #define DC_AX_FILTIDX_PAR0      0x00000000
   #define DC_AX_FILTIDX_PAR1      0x00000001
   #define DC_AX_FILTIDX_MAR0      0x00000002
   #define DC_AX_FILTIDX_MAR1      0x00000003
   /* End of ASIX specific registers */
   
   /*
    * Macronix specific registers. The Macronix chips have a special
    * register for reading the NWAY status, which we don't use, plus
    * a magic packet register, which we need to tweak a bit per the
    * Macronix application notes.
    */
   #define DC_MX_MAGICPACKET       0x80
   #define DC_MX_NWAYSTAT          0xA0
   
   /*
    * Magic packet register
    */
   #define DC_MX_MPACK_DISABLE     0x00400000
   
   /*
    * NWAY status register.
    */
   #define DC_MX_NWAY_10BTHALF     0x08000000
   #define DC_MX_NWAY_10BTFULL     0x10000000
   #define DC_MX_NWAY_100BTHALF    0x20000000
   #define DC_MX_NWAY_100BTFULL    0x40000000
   #define DC_MX_NWAY_100BT4       0x80000000
   
   /*
    * These are magic values that must be written into CSR16
    * (DC_MX_MAGICPACKET) in order to put the chip into proper
    * operating mode. The magic numbers are documented in the
    * Macronix 98715 application notes.
    */
   #define DC_MX_MAGIC_98713       0x0F370000
   #define DC_MX_MAGIC_98713A      0x0B3C0000
   #define DC_MX_MAGIC_98715       0x0B3C0000
   #define DC_MX_MAGIC_98725       0x0B3C0000
   /* End of Macronix specific registers */
   
   /*
    * PNIC 82c168/82c169 specific registers.
    * The PNIC has its own special NWAY support, which doesn't work,
    * and shortcut ways of reading the EEPROM and MII bus.
    */
   #define DC_PN_GPIO              0x60    /* general purpose pins control */
   #define DC_PN_PWRUP_CFG         0x90    /* config register, set by EEPROM */
   #define DC_PN_SIOCTL            0x98    /* serial EEPROM control register */
   #define DC_PN_MII               0xA0    /* MII access register */
   #define DC_PN_NWAY              0xB8    /* Internal NWAY register */
   
   /* Serial I/O EEPROM register */
   #define DC_PN_SIOCTL_DATA       0x0000003F
   #define DC_PN_SIOCTL_OPCODE     0x00000300
   #define DC_PN_SIOCTL_BUSY       0x80000000
   
   #define DC_PN_EEOPCODE_ERASE    0x00000300
   #define DC_PN_EEOPCODE_READ     0x00000600
   #define DC_PN_EEOPCODE_WRITE    0x00000100
   
   /*
    * The first two general purpose pins control speed selection and
    * 100Mbps loopback on the 82c168 chip. The control bits should always
    * be set (to make the data pins outputs) and the speed selction and
    * loopback bits set accordingly when changing media. Physically, this
    * will set the state of a relay mounted on the card.
    */
   #define DC_PN_GPIO_DATA0        0x000000001
   #define DC_PN_GPIO_DATA1        0x000000002
   #define DC_PN_GPIO_DATA2        0x000000004
   #define DC_PN_GPIO_DATA3        0x000000008
   #define DC_PN_GPIO_CTL0         0x000000010
   #define DC_PN_GPIO_CTL1         0x000000020
   #define DC_PN_GPIO_CTL2         0x000000040
   #define DC_PN_GPIO_CTL3         0x000000080
   #define DC_PN_GPIO_SPEEDSEL     DC_PN_GPIO_DATA0/* 1 == 100Mbps, 0 == 10Mbps */
   #define DC_PN_GPIO_100TX_LOOP   DC_PN_GPIO_DATA1/* 1 == normal, 0 == loop */
   #define DC_PN_GPIO_BNC_ENB      DC_PN_GPIO_DATA2
   #define DC_PN_GPIO_100TX_LNK    DC_PN_GPIO_DATA3
   #define DC_PN_GPIO_SETBIT(sc, r)                        \
           DC_SETBIT(sc, DC_PN_GPIO, ((r) | (r << 4)))
   #define DC_PN_GPIO_CLRBIT(sc, r)                        \
           {                                               \
                   DC_SETBIT(sc, DC_PN_GPIO, ((r) << 4));  \
                   DC_CLRBIT(sc, DC_PN_GPIO, (r));         \
           }
           
   /* shortcut MII access register */
   #define DC_PN_MII_DATA          0x0000FFFF
   #define DC_PN_MII_RESERVER      0x00020000
   #define DC_PN_MII_REGADDR       0x007C0000
   #define DC_PN_MII_PHYADDR       0x0F800000
   #define DC_PN_MII_OPCODE        0x30000000
   #define DC_PN_MII_BUSY          0x80000000
   
   #define DC_PN_MIIOPCODE_READ    0x60020000
   #define DC_PN_MIIOPCODE_WRITE   0x50020000
   
   /* Internal NWAY bits */
   #define DC_PN_NWAY_RESET        0x00000001      /* reset */
   #define DC_PN_NWAY_PDOWN        0x00000002      /* power down */
   #define DC_PN_NWAY_BYPASS       0x00000004      /* bypass */
   #define DC_PN_NWAY_AUILOWCUR    0x00000008      /* AUI low current */
   #define DC_PN_NWAY_TPEXTEND     0x00000010      /* low squelch voltage */
   #define DC_PN_NWAY_POLARITY     0x00000020      /* 0 == on, 1 == off */
   #define DC_PN_NWAY_TP           0x00000040      /* 1 == tp, 0 == AUI */
   #define DC_PN_NWAY_AUIVOLT      0x00000080      /* 1 == full, 0 == half */
   #define DC_PN_NWAY_DUPLEX       0x00000100      /* LED, 1 == full, 0 == half */
   #define DC_PN_NWAY_LINKTEST     0x00000200      /* 0 == on, 1 == off */
   #define DC_PN_NWAY_AUTODETECT   0x00000400      /* 1 == off, 0 == on */
   #define DC_PN_NWAY_SPEEDSEL     0x00000800      /* LED, 0 = 10, 1 == 100 */
   #define DC_PN_NWAY_NWAY_ENB     0x00001000      /* 0 == off, 1 == on */
   #define DC_PN_NWAY_CAP10HDX     0x00002000
   #define DC_PN_NWAY_CAP10FDX     0x00004000
   #define DC_PN_NWAY_CAP100FDX    0x00008000
   #define DC_PN_NWAY_CAP100HDX    0x00010000
   #define DC_PN_NWAY_CAP100T4     0x00020000
   #define DC_PN_NWAY_ANEGRESTART  0x02000000      /* resets when aneg done */
   #define DC_PN_NWAY_REMFAULT     0x04000000
   #define DC_PN_NWAY_LPAR10HDX    0x08000000
   #define DC_PN_NWAY_LPAR10FDX    0x10000000
   #define DC_PN_NWAY_LPAR100FDX   0x20000000
   #define DC_PN_NWAY_LPAR100HDX   0x40000000
   #define DC_PN_NWAY_LPAR100T4    0x80000000
   
   /* End of PNIC specific registers */
   
   /*
    * CONEXANT specific registers.
    */
   
   #define DC_CONEXANT_PHYADDR     0x1
   #define DC_CONEXANT_EE_NODEADDR 0x19A
   
   /* End of CONEXANT specific registers */
   
   
   struct dc_softc {
           struct arpcom           arpcom;         /* interface info */
           bus_space_handle_t      dc_bhandle;     /* bus space handle */
           bus_space_tag_t         dc_btag;        /* bus space tag */
           void                    *dc_intrhand;
           struct resource         *dc_irq;
           struct resource         *dc_res;
           struct dc_type          *dc_info;       /* adapter info */
           device_t                dc_miibus;
           u_int8_t                dc_unit;        /* interface number */
           u_int8_t                dc_type;
           u_int8_t                dc_pmode;
           u_int8_t                dc_link;
           u_int8_t                dc_cachesize;
           int                     dc_romwidth;
           int                     dc_pnic_rx_bug_save;
           unsigned char           *dc_pnic_rx_buf;
           int                     dc_if_flags;
           int                     dc_if_media;
           u_int32_t               dc_flags;
           u_int32_t               dc_txthresh;
           u_int8_t                *dc_srom;
           struct dc_mediainfo     *dc_mi;
           struct dc_list_data     *dc_ldata;
           struct dc_chain_data    dc_cdata;
           struct callout          dc_stat_ch;
   #ifdef SRM_MEDIA
           int                     dc_srm_media;
   #endif
           struct mtx              dc_mtx;
   #ifdef DEVICE_POLLING
           int                     rxcycles;       /* ... when polling */
   #endif
           int                     suspended;      /* 0 = normal  1 = suspended */
   
           u_int32_t               saved_maps[5];  /* pci data */
           u_int32_t               saved_biosaddr;
           u_int8_t                saved_intline;
           u_int8_t                saved_cachelnsz;
           u_int8_t                saved_lattimer;
   };
   
   
   #define DC_LOCK(_sc)            mtx_lock(&(_sc)->dc_mtx)
   #define DC_UNLOCK(_sc)          mtx_unlock(&(_sc)->dc_mtx)
   
   #define DC_TX_POLL              0x00000001
   #define DC_TX_COALESCE          0x00000002
   #define DC_TX_ADMTEK_WAR        0x00000004
   #define DC_TX_USE_TX_INTR       0x00000008
   #define DC_RX_FILTER_TULIP      0x00000010
   #define DC_TX_INTR_FIRSTFRAG    0x00000020
   #define DC_PNIC_RX_BUG_WAR      0x00000040
   #define DC_TX_FIXED_RING        0x00000080
   #define DC_TX_STORENFWD         0x00000100
   #define DC_REDUCED_MII_POLL     0x00000200
   #define DC_TX_INTR_ALWAYS       0x00000400
   #define DC_21143_NWAY           0x00000800
   #define DC_128BIT_HASH          0x00001000
   #define DC_64BIT_HASH           0x00002000
   #define DC_TULIP_LEDS           0x00004000
   #define DC_TX_ONE               0x00008000
   #define DC_TX_ALIGN             0x00010000      /* align mbuf on tx */
   
   /*
    * register space access macros
    */
   #define CSR_WRITE_4(sc, reg, val)       \
           bus_space_write_4(sc->dc_btag, sc->dc_bhandle, reg, val)
   
   #define CSR_READ_4(sc, reg)             \
           bus_space_read_4(sc->dc_btag, sc->dc_bhandle, reg)
   
   #define DC_TIMEOUT              1000
   #define ETHER_ALIGN             2
   
   /*
    * General constants that are fun to know.
    */
   
   /*
    * DEC PCI vendor ID
    */
   #define DC_VENDORID_DEC         0x1011
   
   /*
    * DEC/Intel 21143 PCI device ID
    */
   #define DC_DEVICEID_21143       0x0019
   
   /*
    * Macronix PCI vendor ID
    */
   #define DC_VENDORID_MX          0x10D9
   
   /*
    * Macronix PMAC device IDs.
    */
   #define DC_DEVICEID_98713       0x0512
   #define DC_DEVICEID_987x5       0x0531
   #define DC_DEVICEID_98727       0x0532
   #define DC_DEVICEID_98732       0x0532
   
   /* Macronix PCI revision codes. */
   #define DC_REVISION_98713       0x00
   #define DC_REVISION_98713A      0x10
   #define DC_REVISION_98715       0x20
   #define DC_REVISION_98715AEC_C  0x25
   #define DC_REVISION_98725       0x30
   
   /*
    * Compex PCI vendor ID.
    */
   #define DC_VENDORID_CP          0x11F6
   
   /*
    * Compex PMAC PCI device IDs.
    */
   #define DC_DEVICEID_98713_CP    0x9881
   
   /*
    * Lite-On PNIC PCI vendor ID
    */
   #define DC_VENDORID_LO          0x11AD
   
   /*
    * 82c168/82c169 PNIC device IDs. Both chips have the same device
    * ID but different revisions. Revision 0x10 is the 82c168, and
    * 0x20 is the 82c169.
    */
   #define DC_DEVICEID_82C168      0x0002
   
   #define DC_REVISION_82C168      0x10
   #define DC_REVISION_82C169      0x20
   
   /* 
    * Lite-On PNIC II device ID. Note: this is actually a Macronix 98715A
    * with wake on lan/magic packet support.
    */
   #define DC_DEVICEID_82C115      0xc115
   
   /*
    * Davicom vendor ID.
    */
   #define DC_VENDORID_DAVICOM     0x1282
   
   /*
    * Davicom device IDs.
    */
   #define DC_DEVICEID_DM9009      0x9009
   #define DC_DEVICEID_DM9100      0x9100
   #define DC_DEVICEID_DM9102      0x9102
   
   /*
    * The DM9102A has the same PCI device ID as the DM9102,
    * but a higher revision code.
    */
   #define DC_REVISION_DM9102      0x10
   #define DC_REVISION_DM9102A     0x30
   
   /*
    * ADMtek vendor ID.
    */
   #define DC_VENDORID_ADMTEK      0x1317
   
   /*
    * ADMtek device IDs.
    */
   #define DC_DEVICEID_AL981       0x0981
   #define DC_DEVICEID_AN985       0x0985
   
   /*
    * 3COM PCI vendor ID
    */
   #define DC_VENDORID_3COM        0x10b7
   
   /*
    * 3COM OfficeConnect 10/100B (3CSOHO100B-TX)
    */
   #define DC_DEVICEID_3CSOHOB     0x9300
   
   /*
    * ASIX vendor ID.
    */
   #define DC_VENDORID_ASIX        0x125B
   
   /*
    * ASIX device IDs.
    */
   #define DC_DEVICEID_AX88140A    0x1400
   
   /*
    * The ASIX AX88140 and ASIX AX88141 have the same vendor and
    * device IDs but different revision values.
    */
   #define DC_REVISION_88140       0x00
   #define DC_REVISION_88141       0x10
   
   /*
    * Accton vendor ID.
    */
   #define DC_VENDORID_ACCTON      0x1113
   
   /*
    * Accton device IDs.
    */
   #define DC_DEVICEID_EN1217      0x1217
   #define DC_DEVICEID_EN2242      0x1216
   
   /*
    * Xircom vendor ID
    */
   #define DC_VENDORID_XIRCOM      0x115d
   
   /*
    * Xircom device IDs.
    */
   #define DC_DEVICEID_X3201       0x0003
   
   /*
    * Abocom vendor ID
    */
   #define DC_VENDORID_ABOCOM      0x13d1
   
   /*
    * Abocom device IDs.
    */
   #define DC_DEVICEID_FE2500      0xAB02
   
   /*
    * Conexant vendor ID.
    */
   #define DC_VENDORID_CONEXANT    0x14f1
   
   /*
    * Conexant device IDs.
    */
   #define DC_DEVICEID_RS7112      0x1803
   
   /*
    * Planex vendor ID
    */
   #define DC_VENDORID_PLANEX     0x14ea
   
   /*
    * Planex device IDs.
    */
   #define DC_DEVICEID_FNW3602T   0xab08
   
   /*
    * Not sure who this vendor should be, so we'll go with HAWKING until
    * I can locate the right one.
    */
   #define DC_VENDORID_HAWKING     0x17b3
   
   /*
    * Sure looks like an abocom device ID, but it found on my hawking PN672TX
    * card.  Use that for now, and upgrade later.
    */
   #define DC_DEVICEID_HAWKING_PN672TX 0xab08
   
   /*
    * PCI low memory base and low I/O base register, and
    * other PCI registers.
    */
   
   #define DC_PCI_CFID             0x00    /* Id */
   #define DC_PCI_CFCS             0x04    /* Command and status */
   #define DC_PCI_CFRV             0x08    /* Revision */
   #define DC_PCI_CFLT             0x0C    /* Latency timer */
   #define DC_PCI_CFBIO            0x10    /* Base I/O address */
   #define DC_PCI_CFBMA            0x14    /* Base memory address */
   #define DC_PCI_CCIS             0x28    /* Card info struct */
   #define DC_PCI_CSID             0x2C    /* Subsystem ID */
   #define DC_PCI_CBER             0x30    /* Expansion ROM base address */
   #define DC_PCI_CCAP             0x34    /* Caps pointer - PD/TD chip only */
   #define DC_PCI_CFIT             0x3C    /* Interrupt */
   #define DC_PCI_CFDD             0x40    /* Device and driver area */
   #define DC_PCI_CWUA0            0x44    /* Wake-Up LAN addr 0 */
   #define DC_PCI_CWUA1            0x48    /* Wake-Up LAN addr 1 */
   #define DC_PCI_SOP0             0x4C    /* SecureON passwd 0 */
   #define DC_PCI_SOP1             0x50    /* SecureON passwd 1 */
   #define DC_PCI_CWUC             0x54    /* Configuration Wake-Up cmd */
   #define DC_PCI_CCID             0xDC    /* Capability ID - PD/TD only */
   #define DC_PCI_CPMC             0xE0    /* Pwrmgmt ctl & sts - PD/TD only */
   
   /* PCI ID register */
   #define DC_CFID_VENDOR          0x0000FFFF
   #define DC_CFID_DEVICE          0xFFFF0000
   
   /* PCI command/status register */
   #define DC_CFCS_IOSPACE         0x00000001 /* I/O space enable */
   #define DC_CFCS_MEMSPACE        0x00000002 /* memory space enable */
   #define DC_CFCS_BUSMASTER       0x00000004 /* bus master enable */
   #define DC_CFCS_MWI_ENB         0x00000010 /* mem write and inval enable */
   #define DC_CFCS_PARITYERR_ENB   0x00000040 /* parity error enable */
   #define DC_CFCS_SYSERR_ENB      0x00000100 /* system error enable */
   #define DC_CFCS_NEWCAPS         0x00100000 /* new capabilities */
   #define DC_CFCS_FAST_B2B        0x00800000 /* fast back-to-back capable */
   #define DC_CFCS_DATAPARITY      0x01000000 /* Parity error report */
   #define DC_CFCS_DEVSELTIM       0x06000000 /* devsel timing */
  #define DC_CFCS_TGTABRT         0x10000000 /* received target abort */
  #define DC_CFCS_MASTERABRT      0x20000000 /* received master abort */
  #define DC_CFCS_SYSERR          0x40000000 /* asserted system error */
  #define DC_CFCS_PARITYERR       0x80000000 /* asserted parity error */
  
  /* PCI revision register */
  #define DC_CFRV_STEPPING        0x0000000F
  #define DC_CFRV_REVISION        0x000000F0
  #define DC_CFRV_SUBCLASS        0x00FF0000
  #define DC_CFRV_BASECLASS       0xFF000000
  
  #define DC_21143_PB_REV         0x00000030
  #define DC_21143_TB_REV         0x00000030
  #define DC_21143_PC_REV         0x00000030
  #define DC_21143_TC_REV         0x00000030
  #define DC_21143_PD_REV         0x00000041
  #define DC_21143_TD_REV         0x00000041
  
  /* PCI latency timer register */
  #define DC_CFLT_CACHELINESIZE   0x000000FF
  #define DC_CFLT_LATENCYTIMER    0x0000FF00
  
  /* PCI subsystem ID register */
  #define DC_CSID_VENDOR          0x0000FFFF
  #define DC_CSID_DEVICE          0xFFFF0000
  
  /* PCI cababilities pointer */
  #define DC_CCAP_OFFSET          0x000000FF
  
  /* PCI interrupt config register */
  #define DC_CFIT_INTLINE         0x000000FF
  #define DC_CFIT_INTPIN          0x0000FF00
  #define DC_CFIT_MIN_GNT         0x00FF0000
  #define DC_CFIT_MAX_LAT         0xFF000000
  
  /* PCI capability register */
  #define DC_CCID_CAPID           0x000000FF
  #define DC_CCID_NEXTPTR         0x0000FF00
  #define DC_CCID_PM_VERS         0x00070000
  #define DC_CCID_PME_CLK         0x00080000
  #define DC_CCID_DVSPEC_INT      0x00200000
  #define DC_CCID_STATE_D1        0x02000000
  #define DC_CCID_STATE_D2        0x04000000
  #define DC_CCID_PME_D0          0x08000000
  #define DC_CCID_PME_D1          0x10000000
  #define DC_CCID_PME_D2          0x20000000
  #define DC_CCID_PME_D3HOT       0x40000000
  #define DC_CCID_PME_D3COLD      0x80000000
  
  /* PCI power management control/status register */
  #define DC_CPMC_STATE           0x00000003
  #define DC_CPMC_PME_ENB         0x00000100
  #define DC_CPMC_PME_STS         0x00008000
  
  #define DC_PSTATE_D0            0x0
  #define DC_PSTATE_D1            0x1
  #define DC_PSTATE_D2            0x2
  #define DC_PSTATE_D3            0x3
  
  /* Device specific region */
  /* Configuration and driver area */
  #define DC_CFDD_DRVUSE          0x0000FFFF
  #define DC_CFDD_SNOOZE_MODE     0x40000000
  #define DC_CFDD_SLEEP_MODE      0x80000000
  
  /* Configuration wake-up command register */
  #define DC_CWUC_MUST_BE_ZERO    0x00000001
  #define DC_CWUC_SECUREON_ENB    0x00000002
  #define DC_CWUC_FORCE_WUL       0x00000004
  #define DC_CWUC_BNC_ABILITY     0x00000008
  #define DC_CWUC_AUI_ABILITY     0x00000010
  #define DC_CWUC_TP10_ABILITY    0x00000020
  #define DC_CWUC_MII_ABILITY     0x00000040
  #define DC_CWUC_SYM_ABILITY     0x00000080
  #define DC_CWUC_LOCK            0x00000100
  
  /*
   * SROM nonsense.
   */
  
  #define DC_IB_CTLRCNT           0x13
  #define DC_IB_LEAF0_CNUM        0x1A
  #define DC_IB_LEAF0_OFFSET      0x1B
  
  struct dc_info_leaf {
          u_int16_t               dc_conntype;
          u_int8_t                dc_blkcnt;
          u_int8_t                dc_rsvd;
          u_int16_t               dc_infoblk;
  };
  
  #define DC_CTYPE_10BT                   0x0000
  #define DC_CTYPE_10BT_NWAY              0x0100
  #define DC_CTYPE_10BT_FDX               0x0204
  #define DC_CTYPE_10B2                   0x0001
  #define DC_CTYPE_10B5                   0x0002
  #define DC_CTYPE_100BT                  0x0003
  #define DC_CTYPE_100BT_FDX              0x0205
  #define DC_CTYPE_100T4                  0x0006
  #define DC_CTYPE_100FX                  0x0007
  #define DC_CTYPE_100FX_FDX              0x0208
  #define DC_CTYPE_MII_10BT               0x0009
  #define DC_CTYPE_MII_10BT_FDX           0x020A
  #define DC_CTYPE_MII_100BT              0x000D
  #define DC_CTYPE_MII_100BT_FDX          0x020E
  #define DC_CTYPE_MII_100T4              0x000F
  #define DC_CTYPE_MII_100FX              0x0010
  #define DC_CTYPE_MII_100FX_FDX          0x0211
  #define DC_CTYPE_DYN_PUP_AUTOSENSE      0x0800
  #define DC_CTYPE_PUP_AUTOSENSE          0x8800
  #define DC_CTYPE_NOMEDIA                0xFFFF
  
  #define DC_EBLOCK_SIA                   0x0002
  #define DC_EBLOCK_MII                   0x0003
  #define DC_EBLOCK_SYM                   0x0004
  #define DC_EBLOCK_RESET                 0x0005
  #define DC_EBLOCK_PHY_SHUTDOWN          0x0006
  
  struct dc_leaf_hdr {
          u_int16_t               dc_mtype;
          u_int8_t                dc_mcnt;
          u_int8_t                dc_rsvd;
  };
  
  struct dc_eblock_hdr {
          u_int8_t                dc_len;
          u_int8_t                dc_type;
  };
  
  struct dc_eblock_sia {
          struct dc_eblock_hdr    dc_sia_hdr;
          u_int8_t                dc_sia_code;
          u_int8_t                dc_sia_mediaspec[6]; /* CSR13, CSR14, CSR15 */
          u_int8_t                dc_sia_gpio_ctl[2];
          u_int8_t                dc_sia_gpio_dat[2];
  };
  
  #define DC_SIA_CODE_10BT        0x00
  #define DC_SIA_CODE_10B2        0x01
  #define DC_SIA_CODE_10B5        0x02
  #define DC_SIA_CODE_10BT_FDX    0x04
  #define DC_SIA_CODE_EXT         0x40
  
  /*
   * Note that the first word in the gpr and reset
   * sequences is always a control word.
   */
  struct dc_eblock_mii {
          struct dc_eblock_hdr    dc_mii_hdr;
          u_int8_t                dc_mii_phynum;
          u_int8_t                dc_gpr_len;
  /*      u_int16_t               dc_gpr_dat[n]; */
  /*      u_int8_t                dc_reset_len; */
  /*      u_int16_t               dc_reset_dat[n]; */
  /* There are other fields after these, but we don't
   * care about them since they can be determined by looking
   * at the PHY.
   */
  };
  
  struct dc_eblock_sym {
          struct dc_eblock_hdr    dc_sym_hdr;
          u_int8_t                dc_sym_code;
          u_int8_t                dc_sym_gpio_ctl[2];
          u_int8_t                dc_sym_gpio_dat[2];
          u_int8_t                dc_sym_cmd[2];
  };
  
  #define DC_SYM_CODE_100BT       0x03
  #define DC_SYM_CODE_100BT_FDX   0x05
  #define DC_SYM_CODE_100T4       0x06
  #define DC_SYM_CODE_100FX       0x07
  #define DC_SYM_CODE_100FX_FDX   0x08
  
  struct dc_eblock_reset {
          struct dc_eblock_hdr    dc_reset_hdr;
          u_int8_t                dc_reset_len;
  /*      u_int16_t               dc_reset_dat[n]; */
  };
  
  #ifdef __alpha__
  #undef vtophys
  #define vtophys(va)             alpha_XXX_dmamap((vm_offset_t)va)
  #endif

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