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From: davidg@agora.rain.com (David Greenman)
Newsgroups: comp.os.386bsd.development,comp.os.386bsd.misc
Subject: Revision 2.6 of 'ed' device driver (part 2 of 3)
Message-ID: <CECD1F.HL1@agora.rain.com>
Date: 3 Oct 93 21:58:27 GMT
Article-I.D.: agora.CECD1F.HL1
Organization: Open Communications Forum
Lines: 905
if_edreg.h:
/*
* National Semiconductor DS8390 NIC register definitions
*
* $Id: if_edreg.h,v 2.0 93/09/29 00:37:15 davidg Exp Locker: davidg $
*
* Modification history
*
* $Log: if_edreg.h,v $
* 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 1.6 93/09/28 17:20:03 davidg
* first cut at PIO (e.g. NE1000/2000) support
*
* Revision 1.5 93/08/25 20:38:34 davidg
* added define for card type WD8013WC (10BaseT)
*
* Revision 1.4 93/08/14 20:07:55 davidg
* fix board type definition for 8013EP
*
* Revision 1.3 93/07/20 15:25:25 davidg
* added config flags for forcing 8/16bit mode and disabling double
* xmit buffers.
*
* Revision 1.2 93/06/23 03:03:05 davidg
* added some additional definitions for the 83C584 bus interface
* chip (SMC/WD boards)
*
* 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_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 */
/*
* 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 boundry 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 boundry 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 boundry 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 boundry and the CRC did not match at the last byte boundry.
*/
#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
* boundry 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 enetered 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 discriptor
*
* 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.
*/
struct ed_ring {
struct edr_status { /* received packet status */
u_char rs_prx:1, /* packet received intack */
rs_crc:1, /* crc error */
rs_fae:1, /* frame alignment error */
rs_fo:1, /* fifo overrun */
rs_mpa:1, /* packet received intack */
rs_phy:1, /* packet received intack */
rs_dis:1, /* packet received intack */
rs_dfr:1; /* packet received intack */
} ed_rcv_status; /* received packet 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 */
/*
* Compile-time config flags
*/
/*
* this sets the default for enabling/disablng the tranceiver
*/
#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
#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 */
/*
* 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 bit 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
/* 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_WD8013EP 0x27
#define ED_TYPE_WD8013WC 0x28
#define ED_TYPE_WD8013EBP 0x2c
#define ED_TYPE_WD8013EPC 0x29
/* 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
*/
#define ED_WD_ROM_CHECKSUM_TOTAL 0xFF
#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