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src/sys/dev/ic/dcreg.h
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/* $OpenBSD: dcreg.h,v 1.54 2022/01/09 05:42:38 jsg Exp $ */
/*
* 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: src/sys/pci/if_dcreg.h,v 1.12 2000/10/05 17:36:14 wpaul Exp $
*/
/*
* 21143 and clone common register definitions.
*/
#ifdef __alpha__
#define SRM_MEDIA
#endif
#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_AN983 0x7 /* ADMtek AN983 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_TYPE_21145 0xD /* Intel 21145 */
#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_AN983)
#define DC_IS_CENTAUR(x) \
(x->dc_type == DC_TYPE_AN983)
#define DC_IS_INTEL(x) \
(x->dc_type == DC_TYPE_21143 || \
x->dc_type == DC_TYPE_21145)
#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_AN983)
#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_HAS_BROKEN_RXSTATE(x) \
(DC_IS_CENTAUR(x) || DC_IS_CONEXANT(x) || (DC_IS_DAVICOM(x) && \
sc->dc_revision >= DC_REVISION_DM9102A))
#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_IDLE|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
* (upper 15 bits exist on rev 0x41 chips only)
*/
#define DC_TIMER_CLKDIV 0x80000000 /* clock/16 */
#define DC_TIMER_TXTIMER 0x78000000 /* TX intr delay timer */
#define DC_TIMER_TXCOUNT 0x07000000 /* TX intr delay counter */
#define DC_TIMER_RXTIMER 0x00F00000 /* RX intr delay timer */
#define DC_TIMER_RXCOUNT 0x000E0000 /* RX intr delay counter */
#define DC_TIMER_CONTINUOUS 0x00010000
#define DC_TIMER_VALUE 0x0000FFFF /* 81.92us */
/*
* 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_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;
u_int32_t dc_pad[4];
};
#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
#define DC_RX_LIST_CNT 64
#define DC_TX_LIST_CNT 256
#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];
u_int32_t dc_sbuf[DC_SFRAME_LEN/sizeof(u_int32_t)];
u_int8_t dc_pad[ETHER_MIN_LEN];
};
/* software descriptor */
struct dc_swdesc {
bus_dmamap_t sd_map;
struct mbuf *sd_mbuf;
};
struct dc_chain_data {
struct dc_swdesc dc_rx_chain[DC_RX_LIST_CNT];
struct dc_swdesc dc_tx_chain[DC_TX_LIST_CNT];
int dc_tx_prod;
int dc_tx_cons;
int dc_tx_cnt;
int dc_rx_prod;
};
struct dc_mediainfo {
uint64_t 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;
};
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 AN983.
* The AN983 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_ADMTEK_PHYADDR 0x1
#define DC_AL_EE_NODEADDR 8
#define DC_AL_CR_ATUR 0x00000001 /* Enable automatic TX underrun recovery */
/* 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 selection 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 register */
struct dc_softc {
struct device sc_dev;
void *sc_ih;
struct arpcom sc_arpcom; /* interface info */
mii_data_t sc_mii;
bus_space_handle_t dc_bhandle; /* bus space handle */
bus_space_tag_t dc_btag; /* bus space tag */
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;
uint64_t dc_if_media;
u_int32_t dc_flags;
u_int32_t dc_txthresh;
u_int8_t *dc_srom;
size_t dc_sromsize;
struct dc_mediainfo *dc_mi;
struct dc_list_data *dc_ldata;
struct dc_chain_data dc_cdata;
u_int32_t dc_csid;
u_int dc_revision;
struct timeout dc_tick_tmo;
#ifdef SRM_MEDIA
uint64_t dc_srm_media;
#endif
bus_dma_tag_t sc_dmat;
bus_dmamap_t sc_listmap;
bus_dma_segment_t sc_listseg[1];
int sc_listnseg;
caddr_t sc_listkva;
bus_dmamap_t sc_rx_sparemap;
bus_dmamap_t sc_tx_sparemap;
int sc_hasmac;
};
#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 */
#define DC_MOMENCO_BOTCH 0x00020000
/*
* 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
/*
* General constants that are fun to know.
*/
/* 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
/*
* 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_REVISION_82C168 0x10
#define DC_REVISION_82C169 0x20
/*
* 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
/*
* The DMA9102A has the same PCI device ID as the DM9102,
* but a higher revision code.
*/
#define DC_REVISION_DM9102 0x10
#define DC_REVISION_DM9102A 0x30
/*
* 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 capabilities 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;
union {
struct dc_sia_ext { /* if (dc_sia_code & DC_SIA_CODE_EXT) */
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];
} dc_sia_ext;
struct dc_sia_noext {
u_int8_t dc_sia_gpio_ctl[2];
u_int8_t dc_sia_gpio_dat[2];
} dc_sia_noext;
} dc_un;
};
#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]; */
};
extern void dc_attach(struct dc_softc *);
extern int dc_detach(struct dc_softc *);
extern int dc_activate(struct device *, int);
extern int dc_intr(void *);
void dc_init(void *);
void dc_stop(struct dc_softc *, int);
extern void dc_reset(struct dc_softc *);
extern void dc_eeprom_width(struct dc_softc *);
extern void dc_read_srom(struct dc_softc *, int);
extern void dc_parse_21143_srom(struct dc_softc *);
#if BYTE_ORDER == BIG_ENDIAN
#define DC_SP_FIELD_C(x) ((x) << 16)
#else
#define DC_SP_FIELD_C(x) (x)
#endif
#define DC_SP_FIELD(x,f) DC_SP_FIELD_C(((u_int16_t *)(x))[(f)])
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