FreeBSD/Linux Kernel Cross Reference
sys/i386/isa/if_edreg.h

     /*
      * Copyright (C) 1993, David Greenman. This software may be used, modified,
      *   copied, distributed, and sold, in both source and binary form provided
      *   that the above copyright and these terms are retained. Under no
      *   circumstances is the author responsible for the proper functioning
      *   of this software, nor does the author assume any responsibility
      *   for damages incurred with its use.
      *
      * $FreeBSD$
     */
    /*
     * National Semiconductor DS8390 NIC register definitions
     *
     *
     * Modification history
     *
     * Revision 2.2  1993/11/29  16:33:39  davidg
     * From Thomas Sandford <t.d.g.sandford@comp.brad.ac.uk>
     * Add support for the 8013W board type
     *
     * Revision 2.1  1993/11/22  10:52:33  davidg
     * patch to add support for SMC8216 (Elite-Ultra) boards
     * from Glen H. Lowe
     *
     * Revision 2.0  93/09/29  00:37:15  davidg
     * changed double buffering flag to multi buffering
     * made changes/additions for 3c503 multi-buffering
     * ...companion to Rev. 2.0 of 'ed' driver.
     *
     * Revision 1.1  93/06/23  03:01:07  davidg
     * Initial revision
     *
     */
    
    /*
     * Page 0 register offsets
     */
    #define ED_P0_CR        0x00    /* Command Register */
    
    #define ED_P0_CLDA0     0x01    /* Current Local DMA Addr low (read) */
    #define ED_P0_PSTART    0x01    /* Page Start register (write) */
    
    #define ED_P0_CLDA1     0x02    /* Current Local DMA Addr high (read) */
    #define ED_P0_PSTOP     0x02    /* Page Stop register (write) */
    
    #define ED_P0_BNRY      0x03    /* Boundary Pointer */
    
    #define ED_P0_TSR       0x04    /* Transmit Status Register (read) */
    #define ED_P0_TPSR      0x04    /* Transmit Page Start (write) */
    
    #define ED_P0_NCR       0x05    /* Number of Collisions Reg (read) */
    #define ED_P0_TBCR0     0x05    /* Transmit Byte count, low (write) */
    
    #define ED_P0_FIFO      0x06    /* FIFO register (read) */
    #define ED_P0_TBCR1     0x06    /* Transmit Byte count, high (write) */
    
    #define ED_P0_ISR       0x07    /* Interrupt Status Register */
    
    #define ED_P0_CRDA0     0x08    /* Current Remote DMA Addr low (read) */
    #define ED_P0_RSAR0     0x08    /* Remote Start Address low (write) */
    
    #define ED_P0_CRDA1     0x09    /* Current Remote DMA Addr high (read) */
    #define ED_P0_RSAR1     0x09    /* Remote Start Address high (write) */
    
    #define ED_P0_RBCR0     0x0a    /* Remote Byte Count low (write) */
    
    #define ED_P0_RBCR1     0x0b    /* Remote Byte Count high (write) */
    
    #define ED_P0_RSR       0x0c    /* Receive Status (read) */
    #define ED_P0_RCR       0x0c    /* Receive Configuration Reg (write) */
    
    #define ED_P0_CNTR0     0x0d    /* frame alignment error counter (read) */
    #define ED_P0_TCR       0x0d    /* Transmit Configuration Reg (write) */
    
    #define ED_P0_CNTR1     0x0e    /* CRC error counter (read) */
    #define ED_P0_DCR       0x0e    /* Data Configuration Reg (write) */
    
    #define ED_P0_CNTR2     0x0f    /* missed packet counter (read) */
    #define ED_P0_IMR       0x0f    /* Interrupt Mask Register (write) */
    
    /*
     * Page 1 register offsets
     */
    #define ED_P1_CR        0x00    /* Command Register */
    #define ED_P1_PAR0      0x01    /* Physical Address Register 0 */
    #define ED_P1_PAR1      0x02    /* Physical Address Register 1 */
    #define ED_P1_PAR2      0x03    /* Physical Address Register 2 */
    #define ED_P1_PAR3      0x04    /* Physical Address Register 3 */
    #define ED_P1_PAR4      0x05    /* Physical Address Register 4 */
    #define ED_P1_PAR5      0x06    /* Physical Address Register 5 */
    #define ED_P1_PAR(i)    (ED_P1_PAR0 + i)
    #define ED_P1_CURR      0x07    /* Current RX ring-buffer page */
    #define ED_P1_MAR0      0x08    /* Multicast Address Register 0 */
    #define ED_P1_MAR1      0x09    /* Multicast Address Register 1 */
    #define ED_P1_MAR2      0x0a    /* Multicast Address Register 2 */
    #define ED_P1_MAR3      0x0b    /* Multicast Address Register 3 */
    #define ED_P1_MAR4      0x0c    /* Multicast Address Register 4 */
    #define ED_P1_MAR5      0x0d    /* Multicast Address Register 5 */
    #define ED_P1_MAR6      0x0e    /* Multicast Address Register 6 */
   #define ED_P1_MAR7      0x0f    /* Multicast Address Register 7 */
   #define ED_P1_MAR(i)    (ED_P1_MAR0 + i)
   
   /*
    * Page 2 register offsets
    */
   #define ED_P2_CR        0x00    /* Command Register */
   #define ED_P2_PSTART    0x01    /* Page Start (read) */
   #define ED_P2_CLDA0     0x01    /* Current Local DMA Addr 0 (write) */
   #define ED_P2_PSTOP     0x02    /* Page Stop (read) */
   #define ED_P2_CLDA1     0x02    /* Current Local DMA Addr 1 (write) */
   #define ED_P2_RNPP      0x03    /* Remote Next Packet Pointer */
   #define ED_P2_TPSR      0x04    /* Transmit Page Start (read) */
   #define ED_P2_LNPP      0x05    /* Local Next Packet Pointer */
   #define ED_P2_ACU       0x06    /* Address Counter Upper */
   #define ED_P2_ACL       0x07    /* Address Counter Lower */
   #define ED_P2_RCR       0x0c    /* Receive Configuration Register (read) */
   #define ED_P2_TCR       0x0d    /* Transmit Configuration Register (read) */
   #define ED_P2_DCR       0x0e    /* Data Configuration Register (read) */
   #define ED_P2_IMR       0x0f    /* Interrupt Mask Register (read) */
   
   /*
    *              Command Register (CR) definitions
    */
   
   /*
    * STP: SToP. Software reset command. Takes the controller offline. No
    *      packets will be received or transmitted. Any reception or
    *      transmission in progress will continue to completion before
    *      entering reset state. To exit this state, the STP bit must
    *      reset and the STA bit must be set. The software reset has
    *      executed only when indicated by the RST bit in the ISR being
    *      set.
    */
   #define ED_CR_STP       0x01
   
   /*
    * STA: STArt. This bit is used to activate the NIC after either power-up,
    *      or when the NIC has been put in reset mode by software command
    *      or error.
    */
   #define ED_CR_STA       0x02
   
   /*
    * TXP: Transmit Packet. This bit must be set to indicate transmission of
    *      a packet. TXP is internally reset either after the transmission is
    *      completed or aborted. This bit should be set only after the Transmit
    *      Byte Count and Transmit Page Start register have been programmed.
    */
   #define ED_CR_TXP       0x04
   
   /*
    * RD0, RD1, RD2: Remote DMA Command. These three bits control the operation
    *      of the remote DMA channel. RD2 can be set to abort any remote DMA
    *      command in progress. The Remote Byte Count registers should be cleared
    *      when a remote DMA has been aborted. The Remote Start Addresses are not
    *      restored to the starting address if the remote DMA is aborted.
    *
    *      RD2 RD1 RD0     function
    *       0   0   0      not allowed
    *       0   0   1      remote read
    *       0   1   0      remote write
    *       0   1   1      send packet
    *       1   X   X      abort
    */
   #define ED_CR_RD0       0x08
   #define ED_CR_RD1       0x10
   #define ED_CR_RD2       0x20
   
   /*
    * PS0, PS1: Page Select. The two bits select which register set or 'page' to
    *      access.
    *
    *      PS1 PS0         page
    *       0   0          0
    *       0   1          1
    *       1   0          2
    *       1   1          reserved
    */
   #define ED_CR_PS0       0x40
   #define ED_CR_PS1       0x80
   /* bit encoded aliases */
   #define ED_CR_PAGE_0    0x00 /* (for consistency) */
   #define ED_CR_PAGE_1    0x40
   #define ED_CR_PAGE_2    0x80
   
   /*
    *              Interrupt Status Register (ISR) definitions
    */
   
   /*
    * PRX: Packet Received. Indicates packet received with no errors.
    */
   #define ED_ISR_PRX      0x01
   
   /*
    * PTX: Packet Transmitted. Indicates packet transmitted with no errors.
    */
   #define ED_ISR_PTX      0x02
   
   /*
    * RXE: Receive Error. Indicates that a packet was received with one or more
    *      the following errors: CRC error, frame alignment error, FIFO overrun,
    *      missed packet.
    */
   #define ED_ISR_RXE      0x04
   
   /*
    * TXE: Transmission Error. Indicates that an attempt to transmit a packet
    *      resulted in one or more of the following errors: excessive
    *      collisions, FIFO underrun.
    */
   #define ED_ISR_TXE      0x08
   
   /*
    * OVW: OverWrite. Indicates a receive ring-buffer overrun. Incoming network
    *      would exceed (has exceeded?) the boundary pointer, resulting in data
    *      that was previously received and not yet read from the buffer to be
    *      overwritten.
    */
   #define ED_ISR_OVW      0x10
   
   /*
    * CNT: Counter Overflow. Set when the MSB of one or more of the Network Talley
    *      Counters has been set.
    */
   #define ED_ISR_CNT      0x20
   
   /*
    * RDC: Remote Data Complete. Indicates that a Remote DMA operation has completed.
    */
   #define ED_ISR_RDC      0x40
   
   /*
    * RST: Reset status. Set when the NIC enters the reset state and cleared when a
    *      Start Command is issued to the CR. This bit is also set when a receive
    *      ring-buffer overrun (OverWrite) occurs and is cleared when one or more
    *      packets have been removed from the ring. This is a read-only bit.
    */
   #define ED_ISR_RST      0x80
   
   /*
    *              Interrupt Mask Register (IMR) definitions
    */
   
   /*
    * PRXE: Packet Received interrupt Enable. If set, a received packet will cause
    *      an interrupt.
    */
   #define ED_IMR_PRXE     0x01
   
   /*
    * PTXE: Packet Transmit interrupt Enable. If set, an interrupt is generated when
    *      a packet transmission completes.
    */
   #define ED_IMR_PTXE     0x02
   
   /*
    * RXEE: Receive Error interrupt Enable. If set, an interrupt will occur whenever a
    *      packet is received with an error.
    */
   #define ED_IMR_RXEE     0x04
   
   /*
    * TXEE: Transmit Error interrupt Enable. If set, an interrupt will occur whenever
    *      a transmission results in an error.
    */
   #define ED_IMR_TXEE     0x08
   
   /*
    * OVWE: OverWrite error interrupt Enable. If set, an interrupt is generated whenever
    *      the receive ring-buffer is overrun. i.e. when the boundary pointer is exceeded.
    */
   #define ED_IMR_OVWE     0x10
   
   /*
    * CNTE: Counter overflow interrupt Enable. If set, an interrupt is generated whenever
    *      the MSB of one or more of the Network Statistics counters has been set.
    */
   #define ED_IMR_CNTE     0x20
   
   /*
    * RDCE: Remote DMA Complete interrupt Enable. If set, an interrupt is generated
    *      when a remote DMA transfer has completed.
    */
   #define ED_IMR_RDCE     0x40
   
   /*
    * bit 7 is unused/reserved
    */
   
   /*
    *              Data Configuration Register (DCR) definitions
    */
   
   /*
    * WTS: Word Transfer Select. WTS establishes byte or word transfers for
    *      both remote and local DMA transfers
    */
   #define ED_DCR_WTS      0x01
   
   /*
    * BOS: Byte Order Select. BOS sets the byte order for the host.
    *      Should be 0 for 80x86, and 1 for 68000 series processors
    */
   #define ED_DCR_BOS      0x02
   
   /*
    * LAS: Long Address Select. When LAS is 1, the contents of the remote
    *      DMA registers RSAR0 and RSAR1 are used to provide A16-A31
    */
   #define ED_DCR_LAS      0x04
   
   /*
    * LS: Loopback Select. When 0, loopback mode is selected. Bits D1 and D2
    *      of the TCR must also be programmed for loopback operation.
    *      When 1, normal operation is selected.
    */
   #define ED_DCR_LS       0x08
   
   /*
    * AR: Auto-initialize Remote. When 0, data must be removed from ring-buffer
    *      under program control. When 1, remote DMA is automatically initiated
    *      and the boundary pointer is automatically updated
    */
   #define ED_DCR_AR       0x10
   
   /*
    * FT0, FT1: Fifo Threshold select.
    *              FT1     FT0     Word-width      Byte-width
    *               0       0      1 word          2 bytes
    *               0       1      2 words         4 bytes
    *               1       0      4 words         8 bytes
    *               1       1      8 words         12 bytes
    *
    *      During transmission, the FIFO threshold indicates the number of bytes
    *      or words that the FIFO has filled from the local DMA before BREQ is
    *      asserted. The transmission threshold is 16 bytes minus the receiver
    *      threshold.
    */
   #define ED_DCR_FT0      0x20
   #define ED_DCR_FT1      0x40
   
   /*
    * bit 7 (0x80) is unused/reserved
    */
   
   /*
    *              Transmit Configuration Register (TCR) definitions
    */
   
   /*
    * CRC: Inhibit CRC. If 0, CRC will be appended by the transmitter, if 0, CRC
    *      is not appended by the transmitter.
    */
   #define ED_TCR_CRC      0x01
   
   /*
    * LB0, LB1: Loopback control. These two bits set the type of loopback that is
    *      to be performed.
    *
    *      LB1 LB0         mode
    *       0   0          0 - normal operation (DCR_LS = 0)
    *       0   1          1 - internal loopback (DCR_LS = 0)
    *       1   0          2 - external loopback (DCR_LS = 1)
    *       1   1          3 - external loopback (DCR_LS = 0)
    */
   #define ED_TCR_LB0      0x02
   #define ED_TCR_LB1      0x04
   
   /*
    * ATD: Auto Transmit Disable. Clear for normal operation. When set, allows
    *      another station to disable the NIC's transmitter by transmitting to
    *      a multicast address hashing to bit 62. Reception of a multicast address
    *      hashing to bit 63 enables the transmitter.
    */
   #define ED_TCR_ATD      0x08
   
   /*
    * OFST: Collision Offset enable. This bit when set modifies the backoff
    *      algorithm to allow prioritization of nodes.
    */
   #define ED_TCR_OFST     0x10
   
   /*
    * bits 5, 6, and 7 are unused/reserved
    */
   
   /*
    *              Transmit Status Register (TSR) definitions
    */
   
   /*
    * PTX: Packet Transmitted. Indicates successful transmission of packet.
    */
   #define ED_TSR_PTX      0x01
   
   /*
    * bit 1 (0x02) is unused/reserved
    */
   
   /*
    * COL: Transmit Collided. Indicates that the transmission collided at least
    *      once with another station on the network.
    */
   #define ED_TSR_COL      0x04
   
   /*
    * ABT: Transmit aborted. Indicates that the transmission was aborted due to
    *      excessive collisions.
    */
   #define ED_TSR_ABT      0x08
   
   /*
    * CRS: Carrier Sense Lost. Indicates that carrier was lost during the
    *      transmission of the packet. (Transmission is not aborted because
    *      of a loss of carrier)
    */
   #define ED_TSR_CRS      0x10
   
   /*
    * FU: FIFO Underrun. Indicates that the NIC wasn't able to access bus/
    *      transmission memory before the FIFO emptied. Transmission of the
    *      packet was aborted.
    */
   #define ED_TSR_FU       0x20
   
   /*
    * CDH: CD Heartbeat. Indicates that the collision detection circuitry
    *      isn't working correctly during a collision heartbeat test.
    */
   #define ED_TSR_CDH      0x40
   
   /*
    * OWC: Out of Window Collision: Indicates that a collision occurred after
    *      a slot time (51.2us). The transmission is rescheduled just as in
    *      normal collisions.
    */
   #define ED_TSR_OWC      0x80
   
   /*
    *              Receiver Configuration Register (RCR) definitions
    */
   
   /*
    * SEP: Save Errored Packets. If 0, error packets are discarded. If set to 1,
    *      packets with CRC and frame errors are not discarded.
    */
   #define ED_RCR_SEP      0x01
   
   /*
    * AR: Accept Runt packet. If 0, packet with less than 64 byte are discarded.
    *      If set to 1, packets with less than 64 byte are not discarded.
    */
   #define ED_RCR_AR       0x02
   
   /*
    * AB: Accept Broadcast. If set, packets sent to the broadcast address will be
    *      accepted.
    */
   #define ED_RCR_AB       0x04
   
   /*
    * AM: Accept Multicast. If set, packets sent to a multicast address are checked
    *      for a match in the hashing array. If clear, multicast packets are ignored.
    */
   #define ED_RCR_AM       0x08
   
   /*
    * PRO: Promiscuous Physical. If set, all packets with a physical addresses are
    *      accepted. If clear, a physical destination address must match this
    *      station's address. Note: for full promiscuous mode, RCR_AB and RCR_AM
    *      must also be set. In addition, the multicast hashing array must be set
    *      to all 1's so that all multicast addresses are accepted.
    */
   #define ED_RCR_PRO      0x10
   
   /*
    * MON: Monitor Mode. If set, packets will be checked for good CRC and framing,
    *      but are not stored in the ring-buffer. If clear, packets are stored (normal
    *      operation).
    */
   #define ED_RCR_MON      0x20
   
   /*
    * bits 6 and 7 are unused/reserved.
    */
   
   /*
    *              Receiver Status Register (RSR) definitions
    */
   
   /*
    * PRX: Packet Received without error.
    */
   #define ED_RSR_PRX      0x01
   
   /*
    * CRC: CRC error. Indicates that a packet has a CRC error. Also set for frame
    *      alignment errors.
    */
   #define ED_RSR_CRC      0x02
   
   /*
    * FAE: Frame Alignment Error. Indicates that the incoming packet did not end on
    *      a byte boundary and the CRC did not match at the last byte boundary.
    */
   #define ED_RSR_FAE      0x04
   
   /*
    * FO: FIFO Overrun. Indicates that the FIFO was not serviced (during local DMA)
    *      causing it to overrun. Reception of the packet is aborted.
    */
   #define ED_RSR_FO       0x08
   
   /*
    * MPA: Missed Packet. Indicates that the received packet couldn't be stored in
    *      the ring-buffer because of insufficient buffer space (exceeding the
    *      boundary pointer), or because the transfer to the ring-buffer was inhibited
    *      by RCR_MON - monitor mode.
    */
   #define ED_RSR_MPA      0x10
   
   /*
    * PHY: Physical address. If 0, the packet received was sent to a physical address.
    *      If 1, the packet was accepted because of a multicast/broadcast address
    *      match.
    */
   #define ED_RSR_PHY      0x20
   
   /*
    * DIS: Receiver Disabled. Set to indicate that the receiver has entered monitor
    *      mode. Cleared when the receiver exits monitor mode.
    */
   #define ED_RSR_DIS      0x40
   
   /*
    * DFR: Deferring. Set to indicate a 'jabber' condition. The CRS and COL inputs
    *      are active, and the transceiver has set the CD line as a result of the
    *      jabber.
    */
   #define ED_RSR_DFR      0x80
   
   /*
    * receive ring descriptor
    *
    * The National Semiconductor DS8390 Network interface controller uses
    * the following receive ring headers.  The way this works is that the
    * memory on the interface card is chopped up into 256 bytes blocks.
    * A contiguous portion of those blocks are marked for receive packets
    * by setting start and end block #'s in the NIC.  For each packet that
    * is put into the receive ring, one of these headers (4 bytes each) is
    * tacked onto the front. The first byte is a copy of the receiver status
    * register at the time the packet was received.
    */
   struct ed_ring  {
           u_char  rsr;                    /* receiver status */
           u_char  next_packet;            /* pointer to next packet       */
           u_short count;                  /* bytes in packet (length + 4) */
   };
   
   /*
    *                              Common constants
    */
   #define ED_PAGE_SIZE            256             /* Size of RAM pages in bytes */
   #define ED_TXBUF_SIZE           6               /* Size of TX buffer in pages */
   
   /*
    * Vendor types
    */
   #define ED_VENDOR_WD_SMC        0x00            /* Western Digital/SMC */
   #define ED_VENDOR_3COM          0x01            /* 3Com */
   #define ED_VENDOR_NOVELL        0x02            /* Novell */
   #define ED_VENDOR_PCCARD        0x03            /* PCMCIA/PCCARD */
   #define ED_VENDOR_HP            0x04            /* Hewlett Packard */
   
   /*
    * Compile-time config flags
    */
   /*
    * this sets the default for enabling/disabling the transceiver
    */
   #define ED_FLAGS_DISABLE_TRANCEIVER     0x0001
   
   /*
    * This forces the board to be used in 8/16bit mode even if it
    *      autoconfigs differently
    */
   #define ED_FLAGS_FORCE_8BIT_MODE        0x0002
   #define ED_FLAGS_FORCE_16BIT_MODE       0x0004
   
   /*
    * This disables the use of double transmit buffers.
    */
   #define ED_FLAGS_NO_MULTI_BUFFERING     0x0008
   
   /*
    * This forces all operations with the NIC memory to use Programmed
    *      I/O (i.e. not via shared memory)
    */
   #define ED_FLAGS_FORCE_PIO              0x0010
   
   /*
    *              Definitions for Western digital/SMC WD80x3 series ASIC
    */
   /*
    * Memory Select Register (MSR)
    */
   #define ED_WD_MSR       0
   
   /* next three definitions for Toshiba */
   #define ED_WD_MSR_POW   0x02    /* 0 = power save, 1 = normal (R/W) */
   #define ED_WD_MSR_BSY   0x04    /* gate array busy (R) */
   #define ED_WD_MSR_LEN   0x20    /* data bus width, 0 = 16 bits,
                                      1 = 8 bits (R/W) */
   #define ED_WD_MSR_ADDR  0x3f    /* Memory decode bits 18-13 */
   #define ED_WD_MSR_MENB  0x40    /* Memory enable */
   #define ED_WD_MSR_RST   0x80    /* Reset board */
   
   /*
    * Interface Configuration Register (ICR)
    */
   #define ED_WD_ICR       1
   
   #define ED_WD_ICR_16BIT 0x01    /* 16-bit interface */
   #define ED_WD_ICR_OAR   0x02    /* select register. 0=BIO 1=EAR */
   #define ED_WD_ICR_IR2   0x04    /* high order bit of encoded IRQ */
   #define ED_WD_ICR_MSZ   0x08    /* memory size (0=8k 1=32k) */
   #define ED_WD_ICR_RLA   0x10    /* recall LAN address */
   #define ED_WD_ICR_RX7   0x20    /* recall all but i/o and LAN address */
   #define ED_WD_ICR_RIO   0x40    /* recall i/o address */
   #define ED_WD_ICR_STO   0x80    /* store to non-volatile memory */
   #ifdef TOSH_ETHER
   #define ED_WD_ICR_MEM   0xe0    /* shared mem address A15-A13 (R/W) */
   #define ED_WD_ICR_MSZ1  0x0f    /* memory size, 0x08 = 64K, 0x04 = 32K,
                                      0x02 = 16K, 0x01 = 8K */
                                   /* 64K can only be used if mem address
                                      above 1Mb */
                                   /* IAR holds address A23-A16 (R/W) */
   #endif
   
   /*
    * IO Address Register (IAR)
    */
   #define ED_WD_IAR       2
   
   /*
    * EEROM Address Register
    */
   #define ED_WD_EAR       3
   
   /*
    * Interrupt Request Register (IRR)
    */
   #define ED_WD_IRR       4
   
   #define ED_WD_IRR_0WS   0x01    /* use 0 wait-states on 8 bit bus */
   #define ED_WD_IRR_OUT1  0x02    /* WD83C584 pin 1 output */
   #define ED_WD_IRR_OUT2  0x04    /* WD83C584 pin 2 output */
   #define ED_WD_IRR_OUT3  0x08    /* WD83C584 pin 3 output */
   #define ED_WD_IRR_FLASH 0x10    /* Flash RAM is in the ROM socket */
   
   /*
    * The three bits of the encoded IRQ are decoded as follows:
    *
    *      IR2 IR1 IR0     IRQ
    *       0   0   0       2/9
    *       0   0   1       3
    *       0   1   0       5
    *       0   1   1       7
    *       1   0   0       10
    *       1   0   1       11
    *       1   1   0       15
    *       1   1   1       4
    */
   #define ED_WD_IRR_IR0   0x20    /* bit 0 of encoded IRQ */
   #define ED_WD_IRR_IR1   0x40    /* bit 1 of encoded IRQ */
   #define ED_WD_IRR_IEN   0x80    /* Interrupt enable */
   
   /*
    * LA Address Register (LAAR)
    */
   #define ED_WD_LAAR      5
   
   #define ED_WD_LAAR_ADDRHI       0x1f    /* bits 23-19 of RAM address */
   #define ED_WD_LAAR_0WS16        0x20    /* enable 0 wait-states on 16 bit bus */
   #define ED_WD_LAAR_L16EN        0x40    /* enable 16-bit operation */
   #define ED_WD_LAAR_M16EN        0x80    /* enable 16-bit memory access */
   
   /* i/o base offset to station address/card-ID PROM */
   #define ED_WD_PROM      8
   
   /*
    *      83C790 specific registers
    */
   /*
    * Hardware Support Register (HWR) ('790)
    */
   #define ED_WD790_HWR    4
   
   #define WD_WD790_HWR_NUKE       0x10    /* hardware reset */
   #define ED_WD790_HWR_LPRM       0x40    /* LAN PROM select */
   #define ED_WD790_HWR_SWH        0x80    /* switch register set */
   
   /*
    * ICR790 Interrupt Control Register for the 83C790
    */
   #define ED_WD790_ICR    6
   
   #define ED_WD790_ICR_EIL        0x01    /* enable interrupts */
   
   /*
    * REV/IOPA Revision / I/O Pipe register for the 83C79X
    */
   #define ED_WD790_REV    7
   
   #define ED_WD790        0x20
   #define ED_WD795        0x40
   
   /*
    * 79X RAM Address Register (RAR)
    *      Enabled with SWH bit=1 in HWR register
    */
   #define ED_WD790_RAR    0x0b
   
   #define ED_WD790_RAR_SZ8        0x00    /* 8k memory buffer */
   #define ED_WD790_RAR_SZ16       0x10    /* 16k memory buffer */
   #define ED_WD790_RAR_SZ32       0x20    /* 32k memory buffer */
   #define ED_WD790_RAR_SZ64       0x30    /* 64k memory buffer */
   
   /*
    * General Control Register (GCR)
    *      Enabled with SWH bit=1 in HWR register
    */
   #define ED_WD790_GCR    0x0d
   
   #define ED_WD790_GCR_IR0        0x04    /* bit 0 of encoded IRQ */
   #define ED_WD790_GCR_IR1        0x08    /* bit 1 of encoded IRQ */
   #define ED_WD790_GCR_ZWSEN      0x20    /* zero wait state enable */
   #define ED_WD790_GCR_IR2        0x40    /* bit 2 of encoded IRQ */
   #define ED_WD790_GCR_LIT        0x01    /* Link Integrity Test Enable */
   /*
    * The three bits of the encoded IRQ are decoded as follows:
    *
    *      IR2 IR1 IR0     IRQ
    *       0   0   0       none
    *       0   0   1       9
    *       0   1   0       3
    *       0   1   1       5
    *       1   0   0       7
    *       1   0   1       10
    *       1   1   0       11
    *       1   1   1       15
    */
   
   /* i/o base offset to CARD ID */
   #define ED_WD_CARD_ID   ED_WD_PROM+6
   
   /* Board type codes in card ID */
   #define ED_TYPE_WD8003S         0x02
   #define ED_TYPE_WD8003E         0x03
   #define ED_TYPE_WD8013EBT       0x05
   #define ED_TYPE_TOSHIBA1        0x11 /* named PCETA1 */
   #define ED_TYPE_TOSHIBA2        0x12 /* named PCETA2 */
   #define ED_TYPE_TOSHIBA3        0x13 /* named PCETB  */
   #define ED_TYPE_TOSHIBA4        0x14 /* named PCETC  */
   #define ED_TYPE_WD8003W         0x24
   #define ED_TYPE_WD8003EB        0x25
   #define ED_TYPE_WD8013W         0x26
   #define ED_TYPE_WD8013EP        0x27
   #define ED_TYPE_WD8013WC        0x28
   #define ED_TYPE_WD8013EPC       0x29
   #define ED_TYPE_SMC8216T        0x2a
   #define ED_TYPE_SMC8216C        0x2b
   #define ED_TYPE_WD8013EBP       0x2c
   
   /* Bit definitions in card ID */
   #define ED_WD_REV_MASK          0x1f            /* Revision mask */
   #define ED_WD_SOFTCONFIG        0x20            /* Soft config */
   #define ED_WD_LARGERAM          0x40            /* Large RAM */
   #define ED_MICROCHANEL          0x80            /* Microchannel bus (vs. isa) */
   
   /*
    * Checksum total. All 8 bytes in station address PROM will add up to this
    */
   #ifdef TOSH_ETHER
   #define ED_WD_ROM_CHECKSUM_TOTAL        0xA5
   #else
   #define ED_WD_ROM_CHECKSUM_TOTAL        0xFF
   #endif
   
   #define ED_WD_NIC_OFFSET        0x10            /* I/O base offset to NIC */
   #define ED_WD_ASIC_OFFSET       0               /* I/O base offset to ASIC */
   #define ED_WD_IO_PORTS          32              /* # of i/o addresses used */
   
   #define ED_WD_PAGE_OFFSET       0       /* page offset for NIC access to mem */
   
   /*
    *                      Definitions for 3Com 3c503
    */
   #define ED_3COM_NIC_OFFSET      0
   #define ED_3COM_ASIC_OFFSET     0x400           /* offset to nic i/o regs */
   
   /*
    * XXX - The I/O address range is fragmented in the 3c503; this is the
    *      number of regs at iobase.
    */
   #define ED_3COM_IO_PORTS        16              /* # of i/o addresses used */
   
   /* tx memory starts in second bank on 8bit cards */
   #define ED_3COM_TX_PAGE_OFFSET_8BIT     0x20
   
   /* tx memory starts in first bank on 16bit cards */
   #define ED_3COM_TX_PAGE_OFFSET_16BIT    0x0
   
   /* ...and rx memory starts in second bank */
   #define ED_3COM_RX_PAGE_OFFSET_16BIT    0x20
   
   
   /*
    *      Page Start Register. Must match PSTART in NIC
    */
   #define ED_3COM_PSTR            0
   
   /*
    *      Page Stop Register. Must match PSTOP in NIC
    */
   #define ED_3COM_PSPR            1
   
   /*
    *      Drq Timer Register. Determines number of bytes to be transfered during
    *              a DMA burst.
    */
   #define ED_3COM_DQTR            2
   
   /*
    *      Base Configuration Register. Read-only register which contains the
    *              board-configured I/O base address of the adapter. Bit encoded.
    */
   #define ED_3COM_BCFR            3
   
   #define ED_3COM_BCFR_2E0        0x01
   #define ED_3COM_BCFR_2A0        0x02
   #define ED_3COM_BCFR_280        0x04
   #define ED_3COM_BCFR_250        0x08
   #define ED_3COM_BCFR_350        0x10
   #define ED_3COM_BCFR_330        0x20
   #define ED_3COM_BCFR_310        0x40
   #define ED_3COM_BCFR_300        0x80
   
   /*
    *      EPROM Configuration Register. Read-only register which contains the
    *              board-configured memory base address. Bit encoded.
    */
   #define ED_3COM_PCFR            4
   
   #define ED_3COM_PCFR_C8000      0x10
   #define ED_3COM_PCFR_CC000      0x20
   #define ED_3COM_PCFR_D8000      0x40
   #define ED_3COM_PCFR_DC000      0x80
   
   /*
    *      GA Configuration Register. Gate-Array Configuration Register.
    */
   #define ED_3COM_GACFR           5
   
   /*
    * mbs2  mbs1  mbs0             start address
    *  0     0     0               0x0000
    *  0     0     1               0x2000
    *  0     1     0               0x4000
    *  0     1     1               0x6000
    *
    *      Note that with adapters with only 8K, the setting for 0x2000 must
    *              always be used.
    */
   #define ED_3COM_GACFR_MBS0      0x01
   #define ED_3COM_GACFR_MBS1      0x02
   #define ED_3COM_GACFR_MBS2      0x04
   
   #define ED_3COM_GACFR_RSEL      0x08    /* enable shared memory */
   #define ED_3COM_GACFR_TEST      0x10    /* for GA testing */
   #define ED_3COM_GACFR_OWS       0x20    /* select 0WS access to GA */
   #define ED_3COM_GACFR_TCM       0x40    /* Mask DMA interrupts */
   #define ED_3COM_GACFR_NIM       0x80    /* Mask NIC interrupts */
   
   /*
    *      Control Register. Miscellaneous control functions.
    */
   #define ED_3COM_CR              6
   
   #define ED_3COM_CR_RST          0x01    /* Reset GA and NIC */
   #define ED_3COM_CR_XSEL         0x02    /* Transceiver select. BNC=1(def) AUI=0 */
   #define ED_3COM_CR_EALO         0x04    /* window EA PROM 0-15 to I/O base */
   #define ED_3COM_CR_EAHI         0x08    /* window EA PROM 16-31 to I/O base */
   #define ED_3COM_CR_SHARE        0x10    /* select interrupt sharing option */
   #define ED_3COM_CR_DBSEL        0x20    /* Double buffer select */
   #define ED_3COM_CR_DDIR         0x40    /* DMA direction select */
   #define ED_3COM_CR_START        0x80    /* Start DMA controller */
   
   /*
    *      Status Register. Miscellaneous status information.
    */
   #define ED_3COM_STREG           7
   
   #define ED_3COM_STREG_REV       0x07    /* GA revision */
   #define ED_3COM_STREG_DIP       0x08    /* DMA in progress */
   #define ED_3COM_STREG_DTC       0x10    /* DMA terminal count */
   #define ED_3COM_STREG_OFLW      0x20    /* Overflow */
   #define ED_3COM_STREG_UFLW      0x40    /* Underflow */
   #define ED_3COM_STREG_DPRDY     0x80    /* Data port ready */
   
   /*
    *      Interrupt/DMA Configuration Register
    */
   #define ED_3COM_IDCFR           8
   
   #define ED_3COM_IDCFR_DRQ0      0x01    /* DMA request 1 select */
   #define ED_3COM_IDCFR_DRQ1      0x02    /* DMA request 2 select */
   #define ED_3COM_IDCFR_DRQ2      0x04    /* DMA request 3 select */
   #define ED_3COM_IDCFR_UNUSED    0x08    /* not used */
   #define ED_3COM_IDCFR_IRQ2      0x10    /* Interrupt request 2 select */
   #define ED_3COM_IDCFR_IRQ3      0x20    /* Interrupt request 3 select */
   #define ED_3COM_IDCFR_IRQ4      0x40    /* Interrupt request 4 select */
   #define ED_3COM_IDCFR_IRQ5      0x80    /* Interrupt request 5 select */
   
   /*
    *      DMA Address Register MSB
    */
   #define ED_3COM_DAMSB           9
   
   /*
    *      DMA Address Register LSB
    */
   #define ED_3COM_DALSB           0x0a
   
   /*
    *      Vector Pointer Register 2
    */
   #define ED_3COM_VPTR2           0x0b
   
   /*
    *      Vector Pointer Register 1
    */
   #define ED_3COM_VPTR1           0x0c
   
   /*
    *      Vector Pointer Register 0
    */
   #define ED_3COM_VPTR0           0x0d
   
   /*
    *      Register File Access MSB
    */
   #define ED_3COM_RFMSB           0x0e
   
   /*
    *      Register File Access LSB
    */
   #define ED_3COM_RFLSB           0x0f
   
   /*
    *               Definitions for Novell NE1000/2000 boards
    */
   
   /*
    * Board type codes
    */
   #define ED_TYPE_NE1000          0x01
   #define ED_TYPE_NE2000          0x02
   
   /*
    * Register offsets/total
    */
   #define ED_NOVELL_NIC_OFFSET    0x00
   #define ED_NOVELL_ASIC_OFFSET   0x10
   #define ED_NOVELL_IO_PORTS      32
   
   /*
    * Remote DMA data register; for reading or writing to the NIC mem
    *      via programmed I/O (offset from ASIC base)
    */
   #define ED_NOVELL_DATA          0x00
   
   /*
    * Reset register; reading from this register causes a board reset
    */
   #define ED_NOVELL_RESET         0x0f
   
   /*
    *              Definitions for PCCARD
    */
   #define ED_PC_PAGE_OFFSET       0x40    /* page offset for NIC access to mem */
   #define ED_PC_IO_PORTS          32
   #define ED_PC_ASIC_OFFSET       0x10
   #define ED_PC_RESET             0x0f    /* Reset(offset from ASIC base) */
   #define ED_PC_MISC              0x08    /* Misc (offset from ASIC base) */
   
   /* 
    * if_ze.h  constants
   */
  
  #define ZE_PAGE_OFFSET          0x40    /* mem buffer starts at 0x4000 */
  
  #define ZE_DATA_IO      0x10
  #define ZE_MISC         0x18
  #define ZE_RESET        0x1F
  
  /*
   * Definitions for HP PC LAN Adapter Plus; based on the CRYNWR packet
   * driver for the card.
   */
  
  #define ED_HPP_ASIC_OFFSET      0x00    /* Offset to ASIC registers */
  #define ED_HPP_NIC_OFFSET       0x10    /* Offset to 8390 registers */
  
  #define ED_HPP_ID               0x00    /* ID register, always 0x4850 */
  #define ED_HPP_PAGING           0x02    /* Page select register */
  #define ED_HPP_OPTION           0x04    /* Bitmask of supported options */
  #define ED_HPP_PAGE_0           0x08    /* Page 0 */
  #define ED_HPP_PAGE_2           0x0A    /* Page 2 */
  #define ED_HPP_PAGE_4           0x0C    /* Page 4 */
  #define ED_HPP_PAGE_6           0x0E    /* Page 6 */
  
  /* PERF PAGE */
  #define ED_HPP_OUT_ADDR         ED_HPP_PAGE_0   /* I/O output location */
  #define ED_HPP_IN_ADDR          ED_HPP_PAGE_2   /* I/O input location */
  #define ED_HPP_DATAPORT         ED_HPP_PAGE_4   /* I/O data transfer */
  /* MAC PAGE */
  #define ED_HPP_MAC_ADDR         0x08    /* Offset of MAC address in MAC page */
  
  #define ED_HPP_IO_PORTS         32      /* Number of IO ports */
  
  #define ED_HPP_TX_PAGE_OFFSET   0x00    /* first page of TX buffer */
  #define ED_HPP_RX_PAGE_START    0x06    /* start at page 6 */
  #define ED_HPP_RX_PAGE_STOP     0x80    /* end at page 128 */
  
  /*
   * Register pages supported.
   */
  
  #define ED_HPP_PAGE_PERF        0       /* Normal operation */
  #define ED_HPP_PAGE_MAC         1       /* The ethernet address and checksum */
  #define ED_HPP_PAGE_HW          2       /* Hardware parameters in EEPROM */
  #define ED_HPP_PAGE_LAN         4       /* Transciever selection etc */
  #define ED_HPP_PAGE_ID          6       /* ID */
  
  /*
   * Options supported.
   */
  
  #define ED_HPP_OPTION_NIC_RESET         0x0001  /* active low */
  #define ED_HPP_OPTION_CHIP_RESET        0x0002  /* active low */
  #define ED_HPP_OPTION_ENABLE_IRQ        0x0004
  #define ED_HPP_OPTION_FAKE_INTR         0x0008
  #define ED_HPP_OPTION_BOOT_ROM_ENB      0x0010
  #define ED_HPP_OPTION_IO_ENB            0x0020
  #define ED_HPP_OPTION_MEM_ENABLE        0x0040
  #define ED_HPP_OPTION_ZERO_WAIT         0x0080
  #define ED_HPP_OPTION_MEM_DISABLE       0x1000
  
  /*
   * Page ID configuration.
   */
  
  #define ED_HPP_ID_REVISION_MASK         0x0300  /* revision id */
  #define ED_HPP_ID_SOFT_MODEL_MASK       0xFC00  /* soft model number */
  #define ED_HPP_ID_16_BIT_ACCESS         0x0010  /* if set use 16 bit accesses */
  #define ED_HPP_ID_TWISTED_PAIR          0x0040  
  
  /*
   * Hardware configuration.
   */
  
  #define ED_HPP_HW_MEM_MAP       0x09    /* low mem map location in HW page */
  #define ED_HPP_HW_ID            0x0C    /* revision number, capabilities */
  #define ED_HPP_HW_IRQ           0x0D    /* IRQ channel register in HW page */
  #define ED_HPP_HW_WRAP          0x0E    /* mem wrap page for rcv */
  
  /*
   * Lan configuration
   */
  
  #define ED_HPP_LAN_AUI          0x01    /* Use AUI */
  #define ED_HPP_LAN_TL           0x40    /* Don't use AUI */
  
  /*
   * Card types.
   */
  
  #define ED_TYPE_HP_PCLANPLUS    0x00

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