472 lines
14 KiB
C
472 lines
14 KiB
C
/*
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* Copyright (c) 1997, 1998
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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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* $FreeBSD$
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*/
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/*
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* RealTek 8129/8139 register offsets
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*/
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#define RL_IDR0 0x0000 /* ID register 0 (station addr) */
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#define RL_IDR1 0x0001 /* Must use 32-bit accesses (?) */
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#define RL_IDR2 0x0002
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#define RL_IDR3 0x0003
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#define RL_IDR4 0x0004
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#define RL_IDR5 0x0005
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/* 0006-0007 reserved */
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#define RL_MAR0 0x0008 /* Multicast hash table */
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#define RL_MAR1 0x0009
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#define RL_MAR2 0x000A
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#define RL_MAR3 0x000B
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#define RL_MAR4 0x000C
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#define RL_MAR5 0x000D
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#define RL_MAR6 0x000E
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#define RL_MAR7 0x000F
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#define RL_TXSTAT0 0x0010 /* status of TX descriptor 0 */
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#define RL_TXSTAT1 0x0014 /* status of TX descriptor 1 */
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#define RL_TXSTAT2 0x0018 /* status of TX descriptor 2 */
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#define RL_TXSTAT3 0x001C /* status of TX descriptor 3 */
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#define RL_TXADDR0 0x0020 /* address of TX descriptor 0 */
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#define RL_TXADDR1 0x0024 /* address of TX descriptor 1 */
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#define RL_TXADDR2 0x0028 /* address of TX descriptor 2 */
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#define RL_TXADDR3 0x002C /* address of TX descriptor 3 */
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#define RL_RXADDR 0x0030 /* RX ring start address */
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#define RL_RX_EARLY_BYTES 0x0034 /* RX early byte count */
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#define RL_RX_EARLY_STAT 0x0036 /* RX early status */
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#define RL_COMMAND 0x0037 /* command register */
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#define RL_CURRXADDR 0x0038 /* current address of packet read */
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#define RL_CURRXBUF 0x003A /* current RX buffer address */
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#define RL_IMR 0x003C /* interrupt mask register */
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#define RL_ISR 0x003E /* interrupt status register */
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#define RL_TXCFG 0x0040 /* transmit config */
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#define RL_RXCFG 0x0044 /* receive config */
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#define RL_TIMERCNT 0x0048 /* timer count register */
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#define RL_MISSEDPKT 0x004C /* missed packet counter */
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#define RL_EECMD 0x0050 /* EEPROM command register */
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#define RL_CFG0 0x0051 /* config register #0 */
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#define RL_CFG1 0x0052 /* config register #1 */
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/* 0053-0057 reserved */
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#define RL_MEDIASTAT 0x0058 /* media status register (8139) */
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/* 0059-005A reserved */
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#define RL_MII 0x005A /* 8129 chip only */
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#define RL_HALTCLK 0x005B
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#define RL_MULTIINTR 0x005C /* multiple interrupt */
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#define RL_PCIREV 0x005E /* PCI revision value */
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/* 005F reserved */
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#define RL_TXSTAT_ALL 0x0060 /* TX status of all descriptors */
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/* Direct PHY access registers only available on 8139 */
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#define RL_BMCR 0x0062 /* PHY basic mode control */
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#define RL_BMSR 0x0064 /* PHY basic mode status */
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#define RL_ANAR 0x0066 /* PHY autoneg advert */
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#define RL_LPAR 0x0068 /* PHY link partner ability */
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#define RL_ANER 0x006A /* PHY autoneg expansion */
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#define RL_DISCCNT 0x006C /* disconnect counter */
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#define RL_FALSECAR 0x006E /* false carrier counter */
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#define RL_NWAYTST 0x0070 /* NWAY test register */
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#define RL_RX_ER 0x0072 /* RX_ER counter */
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#define RL_CSCFG 0x0074 /* CS configuration register */
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/*
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* TX config register bits
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*/
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#define RL_TXCFG_CLRABRT 0x00000001 /* retransmit aborted pkt */
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#define RL_TXCFG_MAXDMA 0x00000700 /* max DMA burst size */
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#define RL_TXCFG_CRCAPPEND 0x00010000 /* CRC append (0 = yes) */
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#define RL_TXCFG_LOOPBKTST 0x00060000 /* loopback test */
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#define RL_TXCFG_IFG 0x03000000 /* interframe gap */
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#define RL_TXDMA_16BYTES 0x00000000
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#define RL_TXDMA_32BYTES 0x00000100
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#define RL_TXDMA_64BYTES 0x00000200
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#define RL_TXDMA_128BYTES 0x00000300
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#define RL_TXDMA_256BYTES 0x00000400
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#define RL_TXDMA_512BYTES 0x00000500
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#define RL_TXDMA_1024BYTES 0x00000600
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#define RL_TXDMA_2048BYTES 0x00000700
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/*
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* Transmit descriptor status register bits.
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*/
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#define RL_TXSTAT_LENMASK 0x00001FFF
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#define RL_TXSTAT_OWN 0x00002000
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#define RL_TXSTAT_TX_UNDERRUN 0x00004000
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#define RL_TXSTAT_TX_OK 0x00008000
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#define RL_TXSTAT_EARLY_THRESH 0x003F0000
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#define RL_TXSTAT_COLLCNT 0x0F000000
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#define RL_TXSTAT_CARR_HBEAT 0x10000000
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#define RL_TXSTAT_OUTOFWIN 0x20000000
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#define RL_TXSTAT_TXABRT 0x40000000
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#define RL_TXSTAT_CARRLOSS 0x80000000
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/*
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* Interrupt status register bits.
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*/
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#define RL_ISR_RX_OK 0x0001
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#define RL_ISR_RX_ERR 0x0002
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#define RL_ISR_TX_OK 0x0004
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#define RL_ISR_TX_ERR 0x0008
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#define RL_ISR_RX_OVERRUN 0x0010
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#define RL_ISR_PKT_UNDERRUN 0x0020
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#define RL_ISR_FIFO_OFLOW 0x0040 /* 8139 only */
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#define RL_ISR_PCS_TIMEOUT 0x4000 /* 8129 only */
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#define RL_ISR_SYSTEM_ERR 0x8000
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#define RL_INTRS \
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(RL_ISR_TX_OK|RL_ISR_RX_OK|RL_ISR_RX_ERR|RL_ISR_TX_ERR| \
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RL_ISR_RX_OVERRUN|RL_ISR_PKT_UNDERRUN|RL_ISR_FIFO_OFLOW| \
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RL_ISR_PCS_TIMEOUT|RL_ISR_SYSTEM_ERR)
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/*
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* Media status register. (8139 only)
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*/
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#define RL_MEDIASTAT_RXPAUSE 0x01
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#define RL_MEDIASTAT_TXPAUSE 0x02
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#define RL_MEDIASTAT_LINK 0x04
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#define RL_MEDIASTAT_SPEED10 0x08
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#define RL_MEDIASTAT_RXFLOWCTL 0x40 /* duplex mode */
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#define RL_MEDIASTAT_TXFLOWCTL 0x80 /* duplex mode */
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/*
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* Receive config register.
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*/
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#define RL_RXCFG_RX_ALLPHYS 0x00000001 /* accept all nodes */
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#define RL_RXCFG_RX_INDIV 0x00000002 /* match filter */
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#define RL_RXCFG_RX_MULTI 0x00000004 /* accept all multicast */
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#define RL_RXCFG_RX_BROAD 0x00000008 /* accept all broadcast */
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#define RL_RXCFG_RX_RUNT 0x00000010
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#define RL_RXCFG_RX_ERRPKT 0x00000020
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#define RL_RXCFG_WRAP 0x00000080
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#define RL_RXCFG_MAXDMA 0x00000700
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#define RL_RXCFG_BUFSZ 0x00001800
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#define RL_RXCFG_FIFOTHRESH 0x0000E000
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#define RL_RXCFG_EARLYTHRESH 0x07000000
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#define RL_RXDMA_16BYTES 0x00000000
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#define RL_RXDMA_32BYTES 0x00000100
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#define RL_RXDMA_64BYTES 0x00000200
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#define RL_RXDMA_128BYTES 0x00000300
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#define RL_RXDMA_256BYTES 0x00000400
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#define RL_RXDMA_512BYTES 0x00000500
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#define RL_RXDMA_1024BYTES 0x00000600
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#define RL_RXDMA_UNLIMITED 0x00000700
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#define RL_RXBUF_8 0x00000000
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#define RL_RXBUF_16 0x00000800
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#define RL_RXBUF_32 0x00001000
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#define RL_RXBUF_64 0x00001800
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#define RL_RXFIFO_16BYTES 0x00000000
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#define RL_RXFIFO_32BYTES 0x00002000
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#define RL_RXFIFO_64BYTES 0x00004000
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#define RL_RXFIFO_128BYTES 0x00006000
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#define RL_RXFIFO_256BYTES 0x00008000
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#define RL_RXFIFO_512BYTES 0x0000A000
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#define RL_RXFIFO_1024BYTES 0x0000C000
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#define RL_RXFIFO_NOTHRESH 0x0000E000
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/*
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* Bits in RX status header (included with RX'ed packet
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* in ring buffer).
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*/
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#define RL_RXSTAT_RXOK 0x00000001
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#define RL_RXSTAT_ALIGNERR 0x00000002
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#define RL_RXSTAT_CRCERR 0x00000004
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#define RL_RXSTAT_GIANT 0x00000008
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#define RL_RXSTAT_RUNT 0x00000010
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#define RL_RXSTAT_BADSYM 0x00000020
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#define RL_RXSTAT_BROAD 0x00002000
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#define RL_RXSTAT_INDIV 0x00004000
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#define RL_RXSTAT_MULTI 0x00008000
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#define RL_RXSTAT_LENMASK 0xFFFF0000
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#define RL_RXSTAT_UNFINISHED 0xFFF0 /* DMA still in progress */
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/*
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* Command register.
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*/
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#define RL_CMD_EMPTY_RXBUF 0x0001
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#define RL_CMD_TX_ENB 0x0004
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#define RL_CMD_RX_ENB 0x0008
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#define RL_CMD_RESET 0x0010
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/*
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* EEPROM control register
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*/
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#define RL_EE_DATAOUT 0x01 /* Data out */
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#define RL_EE_DATAIN 0x02 /* Data in */
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#define RL_EE_CLK 0x04 /* clock */
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#define RL_EE_SEL 0x08 /* chip select */
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#define RL_EE_MODE (0x40|0x80)
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#define RL_EEMODE_OFF 0x00
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#define RL_EEMODE_AUTOLOAD 0x40
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#define RL_EEMODE_PROGRAM 0x80
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#define RL_EEMODE_WRITECFG (0x80|0x40)
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/* 9346 EEPROM commands */
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#define RL_EECMD_WRITE 0x140
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#define RL_EECMD_READ 0x180
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#define RL_EECMD_ERASE 0x1c0
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#define RL_EE_ID 0x00
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#define RL_EE_PCI_VID 0x01
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#define RL_EE_PCI_DID 0x02
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/* Location of station address inside EEPROM */
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#define RL_EE_EADDR 0x07
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/*
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* MII register (8129 only)
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*/
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#define RL_MII_CLK 0x01
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#define RL_MII_DATAIN 0x02
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#define RL_MII_DATAOUT 0x04
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#define RL_MII_DIR 0x80 /* 0 == input, 1 == output */
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/*
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* Config 0 register
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*/
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#define RL_CFG0_ROM0 0x01
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#define RL_CFG0_ROM1 0x02
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#define RL_CFG0_ROM2 0x04
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#define RL_CFG0_PL0 0x08
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#define RL_CFG0_PL1 0x10
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#define RL_CFG0_10MBPS 0x20 /* 10 Mbps internal mode */
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#define RL_CFG0_PCS 0x40
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#define RL_CFG0_SCR 0x80
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/*
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* Config 1 register
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*/
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#define RL_CFG1_PWRDWN 0x01
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#define RL_CFG1_SLEEP 0x02
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#define RL_CFG1_IOMAP 0x04
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#define RL_CFG1_MEMMAP 0x08
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#define RL_CFG1_RSVD 0x10
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#define RL_CFG1_DRVLOAD 0x20
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#define RL_CFG1_LED0 0x40
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#define RL_CFG1_FULLDUPLEX 0x40 /* 8129 only */
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#define RL_CFG1_LED1 0x80
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/*
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* The RealTek doesn't use a fragment-based descriptor mechanism.
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* Instead, there are only four register sets, each or which represents
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* one 'descriptor.' Basically, each TX descriptor is just a contiguous
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* packet buffer (32-bit aligned!) and we place the buffer addresses in
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* the registers so the chip knows where they are.
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*
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* We can sort of kludge together the same kind of buffer management
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* used in previous drivers, but we have to do buffer copies almost all
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* the time, so it doesn't really buy us much.
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*
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* For reception, there's just one large buffer where the chip stores
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* all received packets.
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*/
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#define RL_RX_BUF_SZ RL_RXBUF_64
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#define RL_RXBUFLEN (1 << ((RL_RX_BUF_SZ >> 11) + 13))
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#define RL_TX_LIST_CNT 4
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#define RL_MIN_FRAMELEN 60
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#define RL_TX_EARLYTHRESH (256 << 11)
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#define RL_RX_FIFOTHRESH RL_RXFIFO_256BYTES
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#define RL_RX_MAXDMA RL_RXDMA_UNLIMITED
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#define RL_TX_MAXDMA RL_TXDMA_2048BYTES
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#define RL_RXCFG_CONFIG (RL_RX_FIFOTHRESH|RL_RX_MAXDMA|RL_RX_BUF_SZ)
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#define RL_TXCFG_CONFIG (RL_TXCFG_IFG|RL_TX_MAXDMA)
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#define RL_ETHER_ALIGN 2
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struct rl_chain_data {
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u_int16_t cur_rx;
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caddr_t rl_rx_buf;
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caddr_t rl_rx_buf_ptr;
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struct mbuf *rl_tx_chain[RL_TX_LIST_CNT];
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u_int8_t last_tx;
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u_int8_t cur_tx;
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};
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#define RL_INC(x) (x = (x + 1) % RL_TX_LIST_CNT)
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#define RL_CUR_TXADDR(x) ((x->rl_cdata.cur_tx * 4) + RL_TXADDR0)
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#define RL_CUR_TXSTAT(x) ((x->rl_cdata.cur_tx * 4) + RL_TXSTAT0)
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#define RL_CUR_TXMBUF(x) (x->rl_cdata.rl_tx_chain[x->rl_cdata.cur_tx])
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#define RL_LAST_TXADDR(x) ((x->rl_cdata.last_tx * 4) + RL_TXADDR0)
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#define RL_LAST_TXSTAT(x) ((x->rl_cdata.last_tx * 4) + RL_TXSTAT0)
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#define RL_LAST_TXMBUF(x) (x->rl_cdata.rl_tx_chain[x->rl_cdata.last_tx])
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struct rl_type {
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u_int16_t rl_vid;
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u_int16_t rl_did;
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char *rl_name;
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};
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struct rl_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 RL_MII_STARTDELIM 0x01
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#define RL_MII_READOP 0x02
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#define RL_MII_WRITEOP 0x01
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#define RL_MII_TURNAROUND 0x02
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#define RL_8129 1
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#define RL_8139 2
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struct rl_softc {
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struct arpcom arpcom; /* interface info */
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bus_space_handle_t rl_bhandle; /* bus space handle */
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bus_space_tag_t rl_btag; /* bus space tag */
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struct resource *rl_res;
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struct resource *rl_irq;
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void *rl_intrhand;
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device_t rl_miibus;
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u_int8_t rl_unit; /* interface number */
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u_int8_t rl_type;
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u_int8_t rl_stats_no_timeout;
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struct rl_chain_data rl_cdata;
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struct callout_handle rl_stat_ch;
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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->rl_btag, sc->rl_bhandle, reg, val)
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#define CSR_WRITE_2(sc, reg, val) \
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bus_space_write_2(sc->rl_btag, sc->rl_bhandle, reg, val)
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#define CSR_WRITE_1(sc, reg, val) \
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bus_space_write_1(sc->rl_btag, sc->rl_bhandle, reg, val)
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#define CSR_READ_4(sc, reg) \
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bus_space_read_4(sc->rl_btag, sc->rl_bhandle, reg)
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#define CSR_READ_2(sc, reg) \
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bus_space_read_2(sc->rl_btag, sc->rl_bhandle, reg)
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#define CSR_READ_1(sc, reg) \
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bus_space_read_1(sc->rl_btag, sc->rl_bhandle, reg)
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#define RL_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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* RealTek PCI vendor ID
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*/
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#define RT_VENDORID 0x10EC
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/*
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* RealTek chip device IDs.
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*/
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#define RT_DEVICEID_8129 0x8129
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#define RT_DEVICEID_8139 0x8139
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/*
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* Accton PCI vendor ID
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*/
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#define ACCTON_VENDORID 0x1113
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/*
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* Accton MPX 5030/5038 device ID.
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*/
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#define ACCTON_DEVICEID_5030 0x1211
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/*
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* Delta Electronics Vendor ID.
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*/
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#define DELTA_VENDORID 0x1500
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/*
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* Delta device IDs.
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*/
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#define DELTA_DEVICEID_8139 0x1360
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/*
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* Addtron vendor ID.
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*/
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#define ADDTRON_VENDORID 0x4033
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/*
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* Addtron device IDs.
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*/
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#define ADDTRON_DEVICEID_8139 0x1360
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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 RL_PCI_VENDOR_ID 0x00
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#define RL_PCI_DEVICE_ID 0x02
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#define RL_PCI_COMMAND 0x04
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#define RL_PCI_STATUS 0x06
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#define RL_PCI_CLASSCODE 0x09
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#define RL_PCI_LATENCY_TIMER 0x0D
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#define RL_PCI_HEADER_TYPE 0x0E
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#define RL_PCI_LOIO 0x10
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#define RL_PCI_LOMEM 0x14
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#define RL_PCI_BIOSROM 0x30
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#define RL_PCI_INTLINE 0x3C
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#define RL_PCI_INTPIN 0x3D
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#define RL_PCI_MINGNT 0x3E
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#define RL_PCI_MINLAT 0x0F
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#define RL_PCI_RESETOPT 0x48
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#define RL_PCI_EEPROM_DATA 0x4C
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#define RL_PCI_CAPID 0x50 /* 8 bits */
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#define RL_PCI_NEXTPTR 0x51 /* 8 bits */
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#define RL_PCI_PWRMGMTCAP 0x52 /* 16 bits */
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#define RL_PCI_PWRMGMTCTRL 0x54 /* 16 bits */
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#define RL_PSTATE_MASK 0x0003
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#define RL_PSTATE_D0 0x0000
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#define RL_PSTATE_D1 0x0002
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#define RL_PSTATE_D2 0x0002
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#define RL_PSTATE_D3 0x0003
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#define RL_PME_EN 0x0010
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#define RL_PME_STATUS 0x8000
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#ifdef __alpha__
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#undef vtophys
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#define vtophys(va) alpha_XXX_dmamap((vm_offset_t)va)
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#endif
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