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1851594ca0
the ASIX chip supports auto-padding.
560 lines
17 KiB
C
560 lines
17 KiB
C
/*
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* Copyright (c) 1997, 1998, 1999
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* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: if_axreg.h,v 1.4 1999/01/16 20:33:34 wpaul Exp $
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*/
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/*
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* ASIX register definitions.
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*/
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#define AX_BUSCTL 0x00 /* bus control */
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#define AX_TXSTART 0x08 /* tx start demand */
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#define AX_RXSTART 0x10 /* rx start demand */
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#define AX_RXADDR 0x18 /* rx descriptor list start addr */
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#define AX_TXADDR 0x20 /* tx descriptor list start addr */
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#define AX_ISR 0x28 /* interrupt status register */
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#define AX_NETCFG 0x30 /* network config register */
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#define AX_IMR 0x38 /* interrupt mask */
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#define AX_FRAMESDISCARDED 0x40 /* # of discarded frames */
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#define AX_SIO 0x48 /* MII and ROM/EEPROM access */
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#define AX_RESERVED 0x50
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#define AX_GENTIMER 0x58 /* general timer */
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#define AX_GENPORT 0x60 /* general purpose port */
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#define AX_FILTIDX 0x68 /* RX filter index */
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#define AX_FILTDATA 0x70 /* RX filter data */
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/*
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* Bus control bits.
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*/
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#define AX_BUSCTL_RESET 0x00000001
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#define AX_BUSCTL_ARBITRATION 0x00000002
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#define AX_BUSCTL_BIGENDIAN 0x00000080
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#define AX_BUSCTL_BURSTLEN 0x00003F00
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#define AX_BUSCTL_BUF_BIGENDIAN 0x00100000
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#define AX_BISCTL_READMULTI 0x00200000
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#define AX_BURSTLEN_UNLIMIT 0x00000000
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#define AX_BURSTLEN_1LONG 0x00000100
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#define AX_BURSTLEN_2LONG 0x00000200
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#define AX_BURSTLEN_4LONG 0x00000400
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#define AX_BURSTLEN_8LONG 0x00000800
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#define AX_BURSTLEN_16LONG 0x00001000
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#define AX_BURSTLEN_32LONG 0x00002000
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#define AX_BUSCTL_CONFIG (AX_BUSCTL_ARBITRATION|AX_BURSTLEN_8LONG|AX_BURSTLEN_8LONG)
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/*
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* Interrupt status bits.
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*/
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#define AX_ISR_TX_OK 0x00000001
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#define AX_ISR_TX_IDLE 0x00000002
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#define AX_ISR_TX_NOBUF 0x00000004
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#define AX_ISR_TX_JABBERTIMEO 0x00000008
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#define AX_ISR_TX_UNDERRUN 0x00000020
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#define AX_ISR_RX_OK 0x00000040
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#define AX_ISR_RX_NOBUF 0x00000080
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#define AX_ISR_RX_IDLE 0x00000100
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#define AX_ISR_RX_WATDOGTIMEO 0x00000200
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#define AX_ISR_TX_EARLY 0x00000400
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#define AX_ISR_TIMER_EXPIRED 0x00000800
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#define AX_ISR_BUS_ERR 0x00002000
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#define AX_ISR_ABNORMAL 0x00008000
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#define AX_ISR_NORMAL 0x00010000
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#define AX_ISR_RX_STATE 0x000E0000
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#define AX_ISR_TX_STATE 0x00700000
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#define AX_ISR_BUSERRTYPE 0x03800000
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#define AX_RXSTATE_STOPPED 0x00000000 /* 000 - Stopped */
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#define AX_RXSTATE_FETCH 0x00020000 /* 001 - Fetching descriptor */
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#define AX_RXSTATE_ENDCHECK 0x00040000 /* 010 - check for rx end */
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#define AX_RXSTATE_WAIT 0x00060000 /* 011 - waiting for packet */
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#define AX_RXSTATE_SUSPEND 0x00080000 /* 100 - suspend rx */
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#define AX_RXSTATE_CLOSE 0x000A0000 /* 101 - close tx desc */
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#define AX_RXSTATE_FLUSH 0x000C0000 /* 110 - flush from FIFO */
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#define AX_RXSTATE_DEQUEUE 0x000E0000 /* 111 - dequeue from FIFO */
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#define AX_TXSTATE_RESET 0x00000000 /* 000 - reset */
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#define AX_TXSTATE_FETCH 0x00100000 /* 001 - fetching descriptor */
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#define AX_TXSTATE_WAITEND 0x00200000 /* 010 - wait for tx end */
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#define AX_TXSTATE_READING 0x00300000 /* 011 - read and enqueue */
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#define AX_TXSTATE_RSVD 0x00400000 /* 100 - reserved */
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#define AX_TXSTATE_SETUP 0x00500000 /* 101 - setup packet */
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#define AX_TXSTATE_SUSPEND 0x00600000 /* 110 - suspend tx */
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#define AX_TXSTATE_CLOSE 0x00700000 /* 111 - close tx desc */
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/*
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* Network config bits.
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*/
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#define AX_NETCFG_LINKSTAT_PCS 0x00000001
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#define AX_NETCFG_RX_ON 0x00000002
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#define AX_NETCFG_RX_BADFRAMES 0x00000008
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#define AX_NETCFG_RX_PROMISC 0x00000040
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#define AX_NETCFG_RX_ALLMULTI 0x00000080
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#define AX_NETCFG_RX_BROAD 0x00000100
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#define AX_NETCFG_FULLDUPLEX 0x00000200
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#define AX_NETCFG_LOOPBACK 0x00000C00
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#define AX_NETCFG_FORCECOLL 0x00001000
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#define AX_NETCFG_TX_ON 0x00002000
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#define AX_NETCFG_TX_THRESH 0x0000C000
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#define AX_NETCFG_PORTSEL 0x00040000 /* 0 == SRL, 1 == MII/SYM */
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#define AX_NETCFG_HEARTBEAT 0x00080000 /* 0 == ON, 1 == OFF */
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#define AX_NETCFG_STORENFWD 0x00200000
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#define AX_NETCFG_SPEEDSEL 0x00400000 /* 1 == 10, 0 == 100 */
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#define AX_NETCFG_PCS 0x00800000
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#define AX_NETCFG_SCRAMBLER 0x01000000
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#define AX_NETCFG_RX_ALL 0x40000000
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#define AX_OPMODE_NORM 0x00000000
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#define AX_OPMODE_INTLOOP 0x00000400
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#define AX_OPMODE_EXTLOOP 0x00000800
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#define AX_TXTHRESH_72BYTES 0x00000000
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#define AX_TXTHRESH_96BYTES 0x00004000
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#define AX_TXTHRESH_128BYTES 0x00008000
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#define AX_TXTHRESH_160BYTES 0x0000C000
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/*
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* Interrupt mask bits.
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*/
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#define AX_IMR_TX_OK 0x00000001
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#define AX_IMR_TX_IDLE 0x00000002
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#define AX_IMR_TX_NOBUF 0x00000004
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#define AX_IMR_TX_JABBERTIMEO 0x00000008
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#define AX_IMR_TX_UNDERRUN 0x00000020
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#define AX_IMR_RX_OK 0x00000040
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#define AX_IMR_RX_NOBUF 0x00000080
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#define AX_IMR_RX_IDLE 0x00000100
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#define AX_IMR_RX_WATDOGTIMEO 0x00000200
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#define AX_IMR_TX_EARLY 0x00000400
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#define AX_IMR_TIMER_EXPIRED 0x00000800
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#define AX_IMR_BUS_ERR 0x00002000
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#define AX_IMR_RX_EARLY 0x00004000
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#define AX_IMR_ABNORMAL 0x00008000
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#define AX_IMR_NORMAL 0x00010000
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#define AX_INTRS \
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(AX_IMR_RX_OK|AX_IMR_TX_OK|AX_IMR_RX_NOBUF|AX_IMR_RX_WATDOGTIMEO|\
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AX_IMR_TX_NOBUF|AX_IMR_TX_UNDERRUN|AX_IMR_BUS_ERR| \
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AX_IMR_ABNORMAL|AX_IMR_NORMAL|/*AX_IMR_TX_EARLY*/ \
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AX_IMR_TX_IDLE|AX_IMR_RX_IDLE)
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/*
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* Serial I/O (EEPROM/ROM) bits.
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*/
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#define AX_SIO_EE_CS 0x00000001 /* EEPROM chip select */
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#define AX_SIO_EE_CLK 0x00000002 /* EEPROM clock */
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#define AX_SIO_EE_DATAIN 0x00000004 /* EEPROM data output */
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#define AX_SIO_EE_DATAOUT 0x00000008 /* EEPROM data input */
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#define AX_SIO_EESEL 0x00000800
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#define AX_SIO_ROMSEL 0x00001000
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#define AX_SIO_ROMCTL_WRITE 0x00002000
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#define AX_SIO_ROMCTL_READ 0x00004000
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#define AX_SIO_MII_CLK 0x00010000 /* MDIO clock */
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#define AX_SIO_MII_DATAOUT 0x00020000 /* MDIO data out */
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#define AX_SIO_MII_DIR 0x00040000 /* MDIO dir */
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#define AX_SIO_MII_DATAIN 0x00080000 /* MDIO data in */
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#define AX_EECMD_WRITE 0x140
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#define AX_EECMD_READ 0x180
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#define AX_EECMD_ERASE 0x1c0
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#define AX_EE_NODEADDR_OFFSET 0x70
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#define AX_EE_NODEADDR 10
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/*
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* General purpose timer register
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*/
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#define AX_TIMER_VALUE 0x0000FFFF
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#define AX_TIMER_CONTINUOUS 0x00010000
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/*
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* RX Filter Index Register values
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*/
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#define AX_FILTIDX_PAR0 0x00000000
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#define AX_FILTIDX_PAR1 0x00000001
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#define AX_FILTIDX_MAR0 0x00000002
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#define AX_FILTIDX_MAR1 0x00000003
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/*
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* ASIX TX/RX list structure.
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*/
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struct ax_desc {
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volatile u_int32_t ax_status;
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volatile u_int32_t ax_ctl;
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volatile u_int32_t ax_ptr1;
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volatile u_int32_t ax_ptr2;
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};
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#define ax_data ax_ptr1
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#define ax_next ax_ptr2
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#define AX_RXSTAT_FIFOOFLOW 0x00000001
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#define AX_RXSTAT_CRCERR 0x00000002
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#define AX_RXSTAT_DRIBBLE 0x00000004
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#define AX_RXSTAT_WATCHDOG 0x00000010
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#define AX_RXSTAT_FRAMETYPE 0x00000020 /* 0 == IEEE 802.3 */
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#define AX_RXSTAT_COLLSEEN 0x00000040
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#define AX_RXSTAT_GIANT 0x00000080
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#define AX_RXSTAT_LASTFRAG 0x00000100
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#define AX_RXSTAT_FIRSTFRAG 0x00000200
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#define AX_RXSTAT_MULTICAST 0x00000400
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#define AX_RXSTAT_RUNT 0x00000800
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#define AX_RXSTAT_RXTYPE 0x00003000
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#define AX_RXSTAT_RXERR 0x00008000
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#define AX_RXSTAT_RXLEN 0x3FFF0000
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#define AX_RXSTAT_OWN 0x80000000
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#define AX_RXBYTES(x) ((x & AX_RXSTAT_RXLEN) >> 16)
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#define AX_RXSTAT (AX_RXSTAT_FIRSTFRAG|AX_RXSTAT_LASTFRAG|AX_RXSTAT_OWN)
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#define AX_RXCTL_BUFLEN1 0x00000FFF
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#define AX_RXCTL_BUFLEN2 0x00FFF000
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#define AX_RXCTL_RLAST 0x02000000
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#define AX_TXSTAT_DEFER 0x00000001
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#define AX_TXSTAT_UNDERRUN 0x00000002
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#define AX_TXSTAT_LINKFAIL 0x00000003
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#define AX_TXSTAT_COLLCNT 0x00000078
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#define AX_TXSTAT_SQE 0x00000080
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#define AX_TXSTAT_EXCESSCOLL 0x00000100
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#define AX_TXSTAT_LATECOLL 0x00000200
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#define AX_TXSTAT_NOCARRIER 0x00000400
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#define AX_TXSTAT_CARRLOST 0x00000800
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#define AX_TXSTAT_JABTIMEO 0x00004000
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#define AX_TXSTAT_ERRSUM 0x00008000
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#define AX_TXSTAT_OWN 0x80000000
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#define AX_TXCTL_BUFLEN1 0x000007FF
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#define AX_TXCTL_BUFLEN2 0x003FF800
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#define AX_TXCTL_PAD 0x00800000
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#define AX_TXCTL_TLAST 0x02000000
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#define AX_TXCTL_NOCRC 0x04000000
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#define AX_TXCTL_FIRSTFRAG 0x20000000
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#define AX_TXCTL_LASTFRAG 0x40000000
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#define AX_TXCTL_FINT 0x80000000
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#define AX_MAXFRAGS 16
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#define AX_RX_LIST_CNT 64
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#define AX_TX_LIST_CNT 64
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#define AX_MIN_FRAMELEN 60
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/*
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* A tx 'super descriptor' is actually 16 regular descriptors
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* back to back.
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*/
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struct ax_txdesc {
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volatile struct ax_desc ax_frag[AX_MAXFRAGS];
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};
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#define AX_TXNEXT(x) x->ax_ptr->ax_frag[x->ax_lastdesc].ax_next
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#define AX_TXSTATUS(x) x->ax_ptr->ax_frag[x->ax_lastdesc].ax_status
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#define AX_TXCTL(x) x->ax_ptr->ax_frag[x->ax_lastdesc].ax_ctl
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#define AX_TXDATA(x) x->ax_ptr->ax_frag[x->ax_lastdesc].ax_data
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#define AX_TXOWN(x) x->ax_ptr->ax_frag[0].ax_status
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#define AX_UNSENT 0x12341234
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struct ax_list_data {
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volatile struct ax_desc ax_rx_list[AX_RX_LIST_CNT];
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volatile struct ax_txdesc ax_tx_list[AX_TX_LIST_CNT];
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};
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struct ax_chain {
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volatile struct ax_txdesc *ax_ptr;
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struct mbuf *ax_mbuf;
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struct ax_chain *ax_nextdesc;
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u_int8_t ax_lastdesc;
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};
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struct ax_chain_onefrag {
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volatile struct ax_desc *ax_ptr;
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struct mbuf *ax_mbuf;
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struct ax_chain_onefrag *ax_nextdesc;
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};
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struct ax_chain_data {
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struct ax_chain_onefrag ax_rx_chain[AX_RX_LIST_CNT];
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struct ax_chain ax_tx_chain[AX_TX_LIST_CNT];
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struct ax_chain_onefrag *ax_rx_head;
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struct ax_chain *ax_tx_head;
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struct ax_chain *ax_tx_tail;
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struct ax_chain *ax_tx_free;
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};
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struct ax_type {
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u_int16_t ax_vid;
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u_int16_t ax_did;
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char *ax_name;
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};
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struct ax_mii_frame {
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u_int8_t mii_stdelim;
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u_int8_t mii_opcode;
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u_int8_t mii_phyaddr;
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u_int8_t mii_regaddr;
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u_int8_t mii_turnaround;
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u_int16_t mii_data;
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};
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/*
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* MII constants
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*/
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#define AX_MII_STARTDELIM 0x01
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#define AX_MII_READOP 0x02
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#define AX_MII_WRITEOP 0x01
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#define AX_MII_TURNAROUND 0x02
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#define AX_FLAG_FORCEDELAY 1
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#define AX_FLAG_SCHEDDELAY 2
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#define AX_FLAG_DELAYTIMEO 3
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struct ax_softc {
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struct arpcom arpcom; /* interface info */
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struct ifmedia ifmedia; /* media info */
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bus_space_handle_t ax_bhandle; /* bus space handle */
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bus_space_tag_t ax_btag; /* bus space tag */
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struct ax_type *ax_info; /* ASIX adapter info */
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struct ax_type *ax_pinfo; /* phy info */
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u_int8_t ax_unit; /* interface number */
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u_int8_t ax_type;
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u_int8_t ax_phy_addr; /* PHY address */
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u_int8_t ax_tx_pend; /* TX pending */
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u_int8_t ax_want_auto;
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u_int8_t ax_autoneg;
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caddr_t ax_ldata_ptr;
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struct ax_list_data *ax_ldata;
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struct ax_chain_data ax_cdata;
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};
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/*
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* register space access macros
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*/
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#define CSR_WRITE_4(sc, reg, val) \
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bus_space_write_4(sc->ax_btag, sc->ax_bhandle, reg, val)
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#define CSR_WRITE_2(sc, reg, val) \
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bus_space_write_2(sc->ax_btag, sc->ax_bbhandle, reg, val)
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#define CSR_WRITE_1(sc, reg, val) \
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bus_space_write_1(sc->ax_btag, sc->ax_bhandle, reg, val)
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#define CSR_READ_4(sc, reg) \
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bus_space_read_4(sc->ax_btag, sc->ax_bhandle, reg)
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#define CSR_READ_2(sc, reg) \
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bus_space_read_2(sc->ax_btag, sc->ax_bhandle, reg)
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#define CSR_READ_1(sc, reg) \
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bus_space_read_1(sc->ax_btag, sc->ax_bhandle, reg)
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#define AX_TIMEOUT 1000
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/*
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* General constants that are fun to know.
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*
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* ASIX PCI vendor ID
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*/
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#define AX_VENDORID 0x125B
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/*
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* ASIX device IDs.
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*/
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#define AX_DEVICEID_AX88140A 0x1400
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/*
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* Texas Instruments PHY identifiers
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*/
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#define TI_PHY_VENDORID 0x4000
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#define TI_PHY_10BT 0x501F
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#define TI_PHY_100VGPMI 0x502F
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/*
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* These ID values are for the NS DP83840A 10/100 PHY
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*/
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#define NS_PHY_VENDORID 0x2000
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#define NS_PHY_83840A 0x5C0F
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/*
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* Level 1 10/100 PHY
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*/
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#define LEVEL1_PHY_VENDORID 0x7810
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#define LEVEL1_PHY_LXT970 0x000F
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/*
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* Intel 82555 10/100 PHY
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*/
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#define INTEL_PHY_VENDORID 0x0A28
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#define INTEL_PHY_82555 0x015F
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/*
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* SEEQ 80220 10/100 PHY
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*/
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#define SEEQ_PHY_VENDORID 0x0016
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#define SEEQ_PHY_80220 0xF83F
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/*
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* PCI low memory base and low I/O base register, and
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* other PCI registers.
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*/
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#define AX_PCI_VENDOR_ID 0x00
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#define AX_PCI_DEVICE_ID 0x02
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#define AX_PCI_COMMAND 0x04
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#define AX_PCI_STATUS 0x06
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#define AX_PCI_REVID 0x08
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#define AX_PCI_CLASSCODE 0x09
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#define AX_PCI_LATENCY_TIMER 0x0D
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#define AX_PCI_HEADER_TYPE 0x0E
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#define AX_PCI_LOIO 0x10
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#define AX_PCI_LOMEM 0x14
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#define AX_PCI_BIOSROM 0x30
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#define AX_PCI_INTLINE 0x3C
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#define AX_PCI_INTPIN 0x3D
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#define AX_PCI_MINGNT 0x3E
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#define AX_PCI_MINLAT 0x0F
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#define AX_PCI_RESETOPT 0x48
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#define AX_PCI_EEPROM_DATA 0x4C
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/* power management registers */
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#define AX_PCI_CAPID 0xDC /* 8 bits */
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#define AX_PCI_NEXTPTR 0xDD /* 8 bits */
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#define AX_PCI_PWRMGMTCAP 0xDE /* 16 bits */
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#define AX_PCI_PWRMGMTCTRL 0xE0 /* 16 bits */
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#define AX_PSTATE_MASK 0x0003
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#define AX_PSTATE_D0 0x0000
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#define AX_PSTATE_D1 0x0001
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#define AX_PSTATE_D2 0x0002
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#define AX_PSTATE_D3 0x0003
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#define AX_PME_EN 0x0010
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#define AX_PME_STATUS 0x8000
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#define PHY_UNKNOWN 6
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#define AX_PHYADDR_MIN 0x00
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#define AX_PHYADDR_MAX 0x1F
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#define PHY_BMCR 0x00
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#define PHY_BMSR 0x01
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#define PHY_VENID 0x02
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#define PHY_DEVID 0x03
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#define PHY_ANAR 0x04
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#define PHY_LPAR 0x05
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#define PHY_ANEXP 0x06
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#define PHY_ANAR_NEXTPAGE 0x8000
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#define PHY_ANAR_RSVD0 0x4000
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#define PHY_ANAR_TLRFLT 0x2000
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#define PHY_ANAR_RSVD1 0x1000
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#define PHY_ANAR_RSVD2 0x0800
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#define PHY_ANAR_RSVD3 0x0400
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#define PHY_ANAR_100BT4 0x0200
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#define PHY_ANAR_100BTXFULL 0x0100
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#define PHY_ANAR_100BTXHALF 0x0080
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#define PHY_ANAR_10BTFULL 0x0040
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#define PHY_ANAR_10BTHALF 0x0020
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#define PHY_ANAR_PROTO4 0x0010
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#define PHY_ANAR_PROTO3 0x0008
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#define PHY_ANAR_PROTO2 0x0004
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#define PHY_ANAR_PROTO1 0x0002
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#define PHY_ANAR_PROTO0 0x0001
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/*
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* These are the register definitions for the PHY (physical layer
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* interface chip).
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*/
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/*
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* PHY BMCR Basic Mode Control Register
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*/
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#define PHY_BMCR_RESET 0x8000
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#define PHY_BMCR_LOOPBK 0x4000
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#define PHY_BMCR_SPEEDSEL 0x2000
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#define PHY_BMCR_AUTONEGENBL 0x1000
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#define PHY_BMCR_RSVD0 0x0800 /* write as zero */
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#define PHY_BMCR_ISOLATE 0x0400
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#define PHY_BMCR_AUTONEGRSTR 0x0200
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#define PHY_BMCR_DUPLEX 0x0100
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#define PHY_BMCR_COLLTEST 0x0080
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#define PHY_BMCR_RSVD1 0x0040 /* write as zero, don't care */
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#define PHY_BMCR_RSVD2 0x0020 /* write as zero, don't care */
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#define PHY_BMCR_RSVD3 0x0010 /* write as zero, don't care */
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#define PHY_BMCR_RSVD4 0x0008 /* write as zero, don't care */
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#define PHY_BMCR_RSVD5 0x0004 /* write as zero, don't care */
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#define PHY_BMCR_RSVD6 0x0002 /* write as zero, don't care */
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#define PHY_BMCR_RSVD7 0x0001 /* write as zero, don't care */
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/*
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* RESET: 1 == software reset, 0 == normal operation
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* Resets status and control registers to default values.
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* Relatches all hardware config values.
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*
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* LOOPBK: 1 == loopback operation enabled, 0 == normal operation
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*
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* SPEEDSEL: 1 == 100Mb/s, 0 == 10Mb/s
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* Link speed is selected byt his bit or if auto-negotiation if bit
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* 12 (AUTONEGENBL) is set (in which case the value of this register
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* is ignored).
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*
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* AUTONEGENBL: 1 == Autonegotiation enabled, 0 == Autonegotiation disabled
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* Bits 8 and 13 are ignored when autoneg is set, otherwise bits 8 and 13
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* determine speed and mode. Should be cleared and then set if PHY configured
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* for no autoneg on startup.
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*
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* ISOLATE: 1 == isolate PHY from MII, 0 == normal operation
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*
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* AUTONEGRSTR: 1 == restart autonegotiation, 0 = normal operation
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*
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* DUPLEX: 1 == full duplex mode, 0 == half duplex mode
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*
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* COLLTEST: 1 == collision test enabled, 0 == normal operation
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*/
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/*
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* PHY, BMSR Basic Mode Status Register
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*/
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#define PHY_BMSR_100BT4 0x8000
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#define PHY_BMSR_100BTXFULL 0x4000
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#define PHY_BMSR_100BTXHALF 0x2000
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#define PHY_BMSR_10BTFULL 0x1000
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#define PHY_BMSR_10BTHALF 0x0800
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#define PHY_BMSR_RSVD1 0x0400 /* write as zero, don't care */
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#define PHY_BMSR_RSVD2 0x0200 /* write as zero, don't care */
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#define PHY_BMSR_RSVD3 0x0100 /* write as zero, don't care */
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#define PHY_BMSR_RSVD4 0x0080 /* write as zero, don't care */
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#define PHY_BMSR_MFPRESUP 0x0040
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#define PHY_BMSR_AUTONEGCOMP 0x0020
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#define PHY_BMSR_REMFAULT 0x0010
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#define PHY_BMSR_CANAUTONEG 0x0008
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#define PHY_BMSR_LINKSTAT 0x0004
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#define PHY_BMSR_JABBER 0x0002
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#define PHY_BMSR_EXTENDED 0x0001
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