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69a164c5e3
8bit or 16bit operation, and a flag to disable transmitter double buffering. See the updated "ed.relnotes" file for information about how to set the flags. This should be considered the first "production" release. It still needs a manual page, though.
841 lines
23 KiB
C
841 lines
23 KiB
C
/*
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* National Semiconductor DS8390 NIC register definitions
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*
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* $Log: if_edreg.h,v $
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* Revision 1.3 93/07/20 15:25:25 davidg
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* added config flags for forcing 8/16bit mode and disabling double
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* xmit buffers.
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*
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* Revision 1.2 93/06/23 03:03:05 davidg
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* added some additional definitions for the 83C584 bus interface
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* chip (SMC/WD boards)
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*
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* Revision 1.1 93/06/23 03:01:07 davidg
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* Initial revision
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*
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*/
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/*
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* Page 0 register offsets
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*/
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#define ED_P0_CR 0x00 /* Command Register */
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#define ED_P0_CLDA0 0x01 /* Current Local DMA Addr low (read) */
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#define ED_P0_PSTART 0x01 /* Page Start register (write) */
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#define ED_P0_CLDA1 0x02 /* Current Local DMA Addr high (read) */
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#define ED_P0_PSTOP 0x02 /* Page Stop register (write) */
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#define ED_P0_BNRY 0x03 /* Boundary Pointer */
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#define ED_P0_TSR 0x04 /* Transmit Status Register (read) */
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#define ED_P0_TPSR 0x04 /* Transmit Page Start (write) */
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#define ED_P0_NCR 0x05 /* Number of Collisions Reg (read) */
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#define ED_P0_TBCR0 0x05 /* Transmit Byte count, low (write) */
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#define ED_P0_FIFO 0x06 /* FIFO register (read) */
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#define ED_P0_TBCR1 0x06 /* Transmit Byte count, high (write) */
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#define ED_P0_ISR 0x07 /* Interrupt Status Register */
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#define ED_P0_CRDA0 0x08 /* Current Remote DMA Addr low (read) */
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#define ED_P0_RSAR0 0x08 /* Remote Start Address low (write) */
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#define ED_P0_CRDA1 0x09 /* Current Remote DMA Addr high (read) */
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#define ED_P0_RSAR1 0x09 /* Remote Start Address high (write) */
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#define ED_P0_RBCR0 0x0a /* Remote Byte Count low (write) */
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#define ED_P0_RBCR1 0x0b /* Remote Byte Count high (write) */
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#define ED_P0_RSR 0x0c /* Receive Status (read) */
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#define ED_P0_RCR 0x0c /* Receive Configuration Reg (write) */
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#define ED_P0_CNTR0 0x0d /* frame alignment error counter (read) */
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#define ED_P0_TCR 0x0d /* Transmit Configuration Reg (write) */
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#define ED_P0_CNTR1 0x0e /* CRC error counter (read) */
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#define ED_P0_DCR 0x0e /* Data Configuration Reg (write) */
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#define ED_P0_CNTR2 0x0f /* missed packet counter (read) */
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#define ED_P0_IMR 0x0f /* Interrupt Mask Register (write) */
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/*
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* Page 1 register offsets
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*/
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#define ED_P1_CR 0x00 /* Command Register */
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#define ED_P1_PAR0 0x01 /* Physical Address Register 0 */
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#define ED_P1_PAR1 0x02 /* Physical Address Register 1 */
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#define ED_P1_PAR2 0x03 /* Physical Address Register 2 */
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#define ED_P1_PAR3 0x04 /* Physical Address Register 3 */
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#define ED_P1_PAR4 0x05 /* Physical Address Register 4 */
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#define ED_P1_PAR5 0x06 /* Physical Address Register 5 */
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#define ED_P1_CURR 0x07 /* Current RX ring-buffer page */
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#define ED_P1_MAR0 0x08 /* Multicast Address Register 0 */
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#define ED_P1_MAR1 0x09 /* Multicast Address Register 1 */
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#define ED_P1_MAR2 0x0a /* Multicast Address Register 2 */
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#define ED_P1_MAR3 0x0b /* Multicast Address Register 3 */
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#define ED_P1_MAR4 0x0c /* Multicast Address Register 4 */
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#define ED_P1_MAR5 0x0d /* Multicast Address Register 5 */
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#define ED_P1_MAR6 0x0e /* Multicast Address Register 6 */
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#define ED_P1_MAR7 0x0f /* Multicast Address Register 7 */
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/*
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* Page 2 register offsets
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*/
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#define ED_P2_CR 0x00 /* Command Register */
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#define ED_P2_PSTART 0x01 /* Page Start (read) */
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#define ED_P2_CLDA0 0x01 /* Current Local DMA Addr 0 (write) */
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#define ED_P2_PSTOP 0x02 /* Page Stop (read) */
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#define ED_P2_CLDA1 0x02 /* Current Local DMA Addr 1 (write) */
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#define ED_P2_RNPP 0x03 /* Remote Next Packet Pointer */
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#define ED_P2_TPSR 0x04 /* Transmit Page Start (read) */
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#define ED_P2_LNPP 0x05 /* Local Next Packet Pointer */
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#define ED_P2_ACU 0x06 /* Address Counter Upper */
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#define ED_P2_ACL 0x07 /* Address Counter Lower */
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#define ED_P2_RCR 0x0c /* Receive Configuration Register (read) */
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#define ED_P2_TCR 0x0d /* Transmit Configuration Register (read) */
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#define ED_P2_DCR 0x0e /* Data Configuration Register (read) */
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#define ED_P2_IMR 0x0f /* Interrupt Mask Register (read) */
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/*
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* Command Register (CR) definitions
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*/
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/*
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* STP: SToP. Software reset command. Takes the controller offline. No
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* packets will be received or transmitted. Any reception or
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* transmission in progress will continue to completion before
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* entering reset state. To exit this state, the STP bit must
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* reset and the STA bit must be set. The software reset has
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* executed only when indicated by the RST bit in the ISR being
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* set.
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*/
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#define ED_CR_STP 0x01
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/*
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* STA: STArt. This bit is used to activate the NIC after either power-up,
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* or when the NIC has been put in reset mode by software command
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* or error.
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*/
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#define ED_CR_STA 0x02
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/*
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* TXP: Transmit Packet. This bit must be set to indicate transmission of
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* a packet. TXP is internally reset either after the transmission is
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* completed or aborted. This bit should be set only after the Transmit
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* Byte Count and Transmit Page Start register have been programmed.
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*/
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#define ED_CR_TXP 0x04
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/*
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* RD0, RD1, RD2: Remote DMA Command. These three bits control the operation
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* of the remote DMA channel. RD2 can be set to abort any remote DMA
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* command in progress. The Remote Byte Count registers should be cleared
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* when a remote DMA has been aborted. The Remote Start Addresses are not
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* restored to the starting address if the remote DMA is aborted.
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*
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* RD2 RD1 RD0 function
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* 0 0 0 not allowed
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* 0 0 1 remote read
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* 0 1 0 remote write
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* 0 1 1 send packet
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* 1 X X abort
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*/
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#define ED_CR_RD0 0x08
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#define ED_CR_RD1 0x10
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#define ED_CR_RD2 0x20
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/*
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* PS0, PS1: Page Select. The two bits select which register set or 'page' to
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* access.
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*
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* PS1 PS0 page
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* 0 0 0
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* 0 1 1
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* 1 0 2
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* 1 1 reserved
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*/
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#define ED_CR_PS0 0x40
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#define ED_CR_PS1 0x80
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/* bit encoded aliases */
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#define ED_CR_PAGE_0 0x00 /* (for consistency) */
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#define ED_CR_PAGE_1 0x40
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#define ED_CR_PAGE_2 0x80
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/*
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* Interrupt Status Register (ISR) definitions
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*/
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/*
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* PRX: Packet Received. Indicates packet received with no errors.
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*/
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#define ED_ISR_PRX 0x01
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/*
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* PTX: Packet Transmitted. Indicates packet transmitted with no errors.
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*/
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#define ED_ISR_PTX 0x02
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/*
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* RXE: Receive Error. Indicates that a packet was received with one or more
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* the following errors: CRC error, frame alignment error, FIFO overrun,
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* missed packet.
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*/
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#define ED_ISR_RXE 0x04
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/*
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* TXE: Transmission Error. Indicates that an attempt to transmit a packet
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* resulted in one or more of the following errors: excessive
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* collisions, FIFO underrun.
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*/
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#define ED_ISR_TXE 0x08
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/*
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* OVW: OverWrite. Indicates a receive ring-buffer overrun. Incoming network
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* would exceed (has exceeded?) the boundry pointer, resulting in data
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* that was previously received and not yet read from the buffer to be
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* overwritten.
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*/
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#define ED_ISR_OVW 0x10
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/*
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* CNT: Counter Overflow. Set when the MSB of one or more of the Network Talley
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* Counters has been set.
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*/
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#define ED_ISR_CNT 0x20
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/*
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* RDC: Remote Data Complete. Indicates that a Remote DMA operation has completed.
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*/
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#define ED_ISR_RDC 0x40
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/*
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* RST: Reset status. Set when the NIC enters the reset state and cleared when a
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* Start Command is issued to the CR. This bit is also set when a receive
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* ring-buffer overrun (OverWrite) occurs and is cleared when one or more
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* packets have been removed from the ring. This is a read-only bit.
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*/
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#define ED_ISR_RST 0x80
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/*
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* Interrupt Mask Register (IMR) definitions
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*/
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/*
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* PRXE: Packet Received interrupt Enable. If set, a received packet will cause
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* an interrupt.
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*/
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#define ED_IMR_PRXE 0x01
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/*
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* PTXE: Packet Transmit interrupt Enable. If set, an interrupt is generated when
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* a packet transmission completes.
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*/
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#define ED_IMR_PTXE 0x02
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/*
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* RXEE: Receive Error interrupt Enable. If set, an interrupt will occur whenever a
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* packet is received with an error.
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*/
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#define ED_IMR_RXEE 0x04
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/*
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* TXEE: Transmit Error interrupt Enable. If set, an interrupt will occur whenever
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* a transmission results in an error.
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*/
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#define ED_IMR_TXEE 0x08
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/*
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* OVWE: OverWrite error interrupt Enable. If set, an interrupt is generated whenever
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* the receive ring-buffer is overrun. i.e. when the boundry pointer is exceeded.
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*/
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#define ED_IMR_OVWE 0x10
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/*
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* CNTE: Counter overflow interrupt Enable. If set, an interrupt is generated whenever
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* the MSB of one or more of the Network Statistics counters has been set.
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*/
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#define ED_IMR_CNTE 0x20
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/*
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* RDCE: Remote DMA Complete interrupt Enable. If set, an interrupt is generated
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* when a remote DMA transfer has completed.
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*/
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#define ED_IMR_RDCE 0x40
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/*
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* bit 7 is unused/reserved
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*/
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/*
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* Data Configuration Register (DCR) definitions
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*/
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/*
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* WTS: Word Transfer Select. WTS establishes byte or word transfers for
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* both remote and local DMA transfers
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*/
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#define ED_DCR_WTS 0x01
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/*
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* BOS: Byte Order Select. BOS sets the byte order for the host.
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* Should be 0 for 80x86, and 1 for 68000 series processors
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*/
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#define ED_DCR_BOS 0x02
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/*
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* LAS: Long Address Select. When LAS is 1, the contents of the remote
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* DMA registers RSAR0 and RSAR1 are used to provide A16-A31
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*/
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#define ED_DCR_LAS 0x04
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/*
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* LS: Loopback Select. When 0, loopback mode is selected. Bits D1 and D2
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* of the TCR must also be programmed for loopback operation.
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* When 1, normal operation is selected.
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*/
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#define ED_DCR_LS 0x08
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/*
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* AR: Auto-initialize Remote. When 0, data must be removed from ring-buffer
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* under program control. When 1, remote DMA is automatically initiated
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* and the boundry pointer is automatically updated
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*/
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#define ED_DCR_AR 0x10
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/*
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* FT0, FT1: Fifo Threshold select.
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* FT1 FT0 Word-width Byte-width
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* 0 0 1 word 2 bytes
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* 0 1 2 words 4 bytes
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* 1 0 4 words 8 bytes
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* 1 1 8 words 12 bytes
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*
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* During transmission, the FIFO threshold indicates the number of bytes
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* or words that the FIFO has filled from the local DMA before BREQ is
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* asserted. The transmission threshold is 16 bytes minus the receiver
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* threshold.
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*/
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#define ED_DCR_FT0 0x20
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#define ED_DCR_FT1 0x40
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/*
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* bit 7 (0x80) is unused/reserved
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*/
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/*
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* Transmit Configuration Register (TCR) definitions
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*/
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/*
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* CRC: Inhibit CRC. If 0, CRC will be appended by the transmitter, if 0, CRC
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* is not appended by the transmitter.
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*/
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#define ED_TCR_CRC 0x01
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/*
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* LB0, LB1: Loopback control. These two bits set the type of loopback that is
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* to be performed.
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*
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* LB1 LB0 mode
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* 0 0 0 - normal operation (DCR_LS = 0)
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* 0 1 1 - internal loopback (DCR_LS = 0)
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* 1 0 2 - external loopback (DCR_LS = 1)
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* 1 1 3 - external loopback (DCR_LS = 0)
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*/
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#define ED_TCR_LB0 0x02
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#define ED_TCR_LB1 0x04
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/*
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* ATD: Auto Transmit Disable. Clear for normal operation. When set, allows
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* another station to disable the NIC's transmitter by transmitting to
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* a multicast address hashing to bit 62. Reception of a multicast address
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* hashing to bit 63 enables the transmitter.
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*/
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#define ED_TCR_ATD 0x08
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/*
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* OFST: Collision Offset enable. This bit when set modifies the backoff
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* algorithm to allow prioritization of nodes.
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*/
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#define ED_TCR_OFST 0x10
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/*
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* bits 5, 6, and 7 are unused/reserved
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*/
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/*
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* Transmit Status Register (TSR) definitions
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*/
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/*
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* PTX: Packet Transmitted. Indicates successful transmission of packet.
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*/
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#define ED_TSR_PTX 0x01
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/*
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* bit 1 (0x02) is unused/reserved
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*/
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/*
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* COL: Transmit Collided. Indicates that the transmission collided at least
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* once with another station on the network.
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*/
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#define ED_TSR_COL 0x04
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/*
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* ABT: Transmit aborted. Indicates that the transmission was aborted due to
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* excessive collisions.
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*/
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#define ED_TSR_ABT 0x08
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/*
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* CRS: Carrier Sense Lost. Indicates that carrier was lost during the
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* transmission of the packet. (Transmission is not aborted because
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* of a loss of carrier)
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*/
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#define ED_TSR_CRS 0x10
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/*
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* FU: FIFO Underrun. Indicates that the NIC wasn't able to access bus/
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* transmission memory before the FIFO emptied. Transmission of the
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* packet was aborted.
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*/
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#define ED_TSR_FU 0x20
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/*
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* CDH: CD Heartbeat. Indicates that the collision detection circuitry
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* isn't working correctly during a collision heartbeat test.
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*/
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#define ED_TSR_CDH 0x40
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/*
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* OWC: Out of Window Collision: Indicates that a collision occurred after
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* a slot time (51.2us). The transmission is rescheduled just as in
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* normal collisions.
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*/
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#define ED_TSR_OWC 0x80
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/*
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* Receiver Configuration Register (RCR) definitions
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*/
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/*
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* SEP: Save Errored Packets. If 0, error packets are discarded. If set to 1,
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* packets with CRC and frame errors are not discarded.
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*/
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#define ED_RCR_SEP 0x01
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/*
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* AR: Accept Runt packet. If 0, packet with less than 64 byte are discarded.
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* If set to 1, packets with less than 64 byte are not discarded.
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*/
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#define ED_RCR_AR 0x02
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/*
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* AB: Accept Broadcast. If set, packets sent to the broadcast address will be
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* accepted.
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*/
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#define ED_RCR_AB 0x04
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/*
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* AM: Accept Multicast. If set, packets sent to a multicast address are checked
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* for a match in the hashing array. If clear, multicast packets are ignored.
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*/
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#define ED_RCR_AM 0x08
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/*
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* PRO: Promiscuous Physical. If set, all packets with a physical addresses are
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* accepted. If clear, a physical destination address must match this
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* station's address. Note: for full promiscuous mode, RCR_AB and RCR_AM
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* must also be set. In addition, the multicast hashing array must be set
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* to all 1's so that all multicast addresses are accepted.
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*/
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#define ED_RCR_PRO 0x10
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/*
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* MON: Monitor Mode. If set, packets will be checked for good CRC and framing,
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* but are not stored in the ring-buffer. If clear, packets are stored (normal
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* operation).
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*/
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#define ED_RCR_MON 0x20
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/*
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* bits 6 and 7 are unused/reserved.
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*/
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/*
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* Receiver Status Register (RSR) definitions
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*/
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/*
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* PRX: Packet Received without error.
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*/
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#define ED_RSR_PRX 0x01
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/*
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* CRC: CRC error. Indicates that a packet has a CRC error. Also set for frame
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* alignment errors.
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*/
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#define ED_RSR_CRC 0x02
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/*
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* FAE: Frame Alignment Error. Indicates that the incoming packet did not end on
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* a byte boundry and the CRC did not match at the last byte boundry.
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*/
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#define ED_RSR_FAE 0x04
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/*
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* FO: FIFO Overrun. Indicates that the FIFO was not serviced (during local DMA)
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* causing it to overrun. Reception of the packet is aborted.
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*/
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#define ED_RSR_FO 0x08
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/*
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* MPA: Missed Packet. Indicates that the received packet couldn't be stored in
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* the ring-buffer because of insufficient buffer space (exceeding the
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* boundry pointer), or because the transfer to the ring-buffer was inhibited
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* by RCR_MON - monitor mode.
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*/
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#define ED_RSR_MPA 0x10
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/*
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* PHY: Physical address. If 0, the packet received was sent to a physical address.
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* If 1, the packet was accepted because of a multicast/broadcast address
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* match.
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*/
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#define ED_RSR_PHY 0x20
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/*
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* DIS: Receiver Disabled. Set to indicate that the receiver has enetered monitor
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* mode. Cleared when the receiver exits monitor mode.
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*/
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#define ED_RSR_DIS 0x40
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/*
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* DFR: Deferring. Set to indicate a 'jabber' condition. The CRS and COL inputs
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* are active, and the transceiver has set the CD line as a result of the
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* jabber.
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*/
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#define ED_RSR_DFR 0x80
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/*
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* receive ring discriptor
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*
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* The National Semiconductor DS8390 Network interface controller uses
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* the following receive ring headers. The way this works is that the
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* memory on the interface card is chopped up into 256 bytes blocks.
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* A contiguous portion of those blocks are marked for receive packets
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* by setting start and end block #'s in the NIC. For each packet that
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* is put into the receive ring, one of these headers (4 bytes each) is
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* tacked onto the front.
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*/
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struct ed_ring {
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struct edr_status { /* received packet status */
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u_char rs_prx:1, /* packet received intack */
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rs_crc:1, /* crc error */
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rs_fae:1, /* frame alignment error */
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rs_fo:1, /* fifo overrun */
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rs_mpa:1, /* packet received intack */
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rs_phy:1, /* packet received intack */
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rs_dis:1, /* packet received intack */
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rs_dfr:1; /* packet received intack */
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} ed_rcv_status; /* received packet status */
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u_char next_packet; /* pointer to next packet */
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u_short count; /* bytes in packet (length + 4) */
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};
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/*
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* Common constants
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*/
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#define ED_PAGE_SIZE 256 /* Size of RAM pages in bytes */
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#define ED_TXBUF_SIZE 6 /* Size of TX buffer in pages */
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/*
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* Vendor types
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*/
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#define ED_VENDOR_WD_SMC 0x00 /* Western Digital/SMC */
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#define ED_VENDOR_3COM 0x01 /* 3Com */
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/*
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* Compile-time config flags
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*/
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/*
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* this sets the default for enabling/disablng the tranceiver
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*/
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#define ED_FLAGS_DISABLE_TRANCEIVER 0x01
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/*
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* This forces the board to be used in 8/16bit mode even if it
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* autoconfigs differently
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*/
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#define ED_FLAGS_FORCE_8BIT_MODE 0x02
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#define ED_FLAGS_FORCE_16BIT_MODE 0x04
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/*
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* This disables the use of double transmit buffers.
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*/
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#define ED_FLAGS_NO_DOUBLE_BUFFERING 0x08
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/*
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* Definitions for Western digital/SMC WD80x3 series ASIC
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*/
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/*
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* Memory Select Register (MSR)
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*/
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#define ED_WD_MSR 0
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#define ED_WD_MSR_ADDR 0x3f /* Memory decode bits 18-13 */
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#define ED_WD_MSR_MENB 0x40 /* Memory enable */
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#define ED_WD_MSR_RST 0x80 /* Reset board */
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/*
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* Interface Configuration Register (ICR)
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*/
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#define ED_WD_ICR 1
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#define ED_WD_ICR_16BIT 0x01 /* 16-bit interface */
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#define ED_WD_ICR_OAR 0x02 /* select register. 0=BIO 1=EAR */
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#define ED_WD_ICR_IR2 0x04 /* high order bit of encoded IRQ */
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#define ED_WD_ICR_MSZ 0x08 /* memory size (0=8k 1=32k) */
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#define ED_WD_ICR_RLA 0x10 /* recall LAN address */
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#define ED_WD_ICR_RX7 0x20 /* recall all but i/o and LAN address */
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#define ED_WD_ICR_RIO 0x40 /* recall i/o address */
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#define ED_WD_ICR_STO 0x80 /* store to non-volatile memory */
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/*
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* IO Address Register (IAR)
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*/
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#define ED_WD_IAR 2
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/*
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* EEROM Address Register
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*/
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#define ED_WD_EAR 3
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/*
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* Interrupt Request Register (IRR)
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*/
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#define ED_WD_IRR 4
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#define ED_WD_IRR_0WS 0x01 /* use 0 wait-states on 8 bit bus */
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#define ED_WD_IRR_OUT1 0x02 /* WD83C584 pin 1 output */
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#define ED_WD_IRR_OUT2 0x04 /* WD83C584 pin 2 output */
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#define ED_WD_IRR_OUT3 0x08 /* WD83C584 pin 3 output */
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#define ED_WD_IRR_FLASH 0x10 /* Flash RAM is in the ROM socket */
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/*
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* The three bit of the encoded IRQ are decoded as follows:
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*
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* IR2 IR1 IR0 IRQ
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* 0 0 0 2/9
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* 0 0 1 3
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* 0 1 0 5
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* 0 1 1 7
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* 1 0 0 10
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* 1 0 1 11
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* 1 1 0 15
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* 1 1 1 4
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*/
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#define ED_WD_IRR_IR0 0x20 /* bit 0 of encoded IRQ */
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#define ED_WD_IRR_IR1 0x40 /* bit 1 of encoded IRQ */
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#define ED_WD_IRR_IEN 0x80 /* Interrupt enable */
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/*
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* LA Address Register (LAAR)
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*/
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#define ED_WD_LAAR 5
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#define ED_WD_LAAR_ADDRHI 0x1f /* bits 23-19 of RAM address */
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#define ED_WD_LAAR_0WS16 0x20 /* enable 0 wait-states on 16 bit bus */
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#define ED_WD_LAAR_L16EN 0x40 /* enable 16-bit operation */
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#define ED_WD_LAAR_M16EN 0x80 /* enable 16-bit memory access */
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/* i/o base offset to station address/card-ID PROM */
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#define ED_WD_PROM 8
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/* i/o base offset to CARD ID */
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#define ED_WD_CARD_ID ED_WD_PROM+6
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#define ED_TYPE_WD8003S 0x02
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#define ED_TYPE_WD8003E 0x03
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#define ED_TYPE_WD8013EBT 0x05
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#define ED_TYPE_WD8013EB 0x27
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#define ED_TYPE_WD8013EBP 0x2c
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#define ED_TYPE_WD8013EPC 0x29
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/* Bit definitions in card ID */
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#define ED_WD_REV_MASK 0x1f /* Revision mask */
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#define ED_WD_SOFTCONFIG 0x20 /* Soft config */
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#define ED_WD_LARGERAM 0x40 /* Large RAM */
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#define ED_MICROCHANEL 0x80 /* Microchannel bus (vs. isa) */
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/*
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* Checksum total. All 8 bytes in station address PROM will add up to this
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*/
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#define ED_WD_ROM_CHECKSUM_TOTAL 0xFF
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#define ED_WD_NIC_OFFSET 0x10 /* I/O base offset to NIC */
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#define ED_WD_ASIC_OFFSET 0 /* I/O base offset to ASIC */
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#define ED_WD_IO_PORTS 32 /* # of i/o addresses used */
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#define ED_WD_PAGE_OFFSET 0 /* page offset for NIC access to mem */
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/*
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* Definitions for 3Com 3c503
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*/
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#define ED_3COM_NIC_OFFSET 0
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#define ED_3COM_ASIC_OFFSET 0x400 /* offset to nic i/o regs */
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/*
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* XXX - The I/O address range is fragmented in the 3c503; this is the
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* number of regs at iobase.
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*/
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#define ED_3COM_IO_PORTS 16 /* # of i/o addresses used */
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#define ED_3COM_PAGE_OFFSET 0x20 /* memory starts in second bank */
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/*
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* Page Start Register. Must match PSTART in NIC
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*/
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#define ED_3COM_PSTR 0
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/*
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* Page Stop Register. Must match PSTOP in NIC
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*/
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#define ED_3COM_PSPR 1
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/*
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|
* Drq Timer Register. Determines number of bytes to be transfered during
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* a DMA burst.
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*/
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#define ED_3COM_DQTR 2
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/*
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|
* Base Configuration Register. Read-only register which contains the
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* board-configured I/O base address of the adapter. Bit encoded.
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*/
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#define ED_3COM_BCFR 3
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#define ED_3COM_BCFR_2E0 0x01
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#define ED_3COM_BCFR_2A0 0x02
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#define ED_3COM_BCFR_280 0x04
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#define ED_3COM_BCFR_250 0x08
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#define ED_3COM_BCFR_350 0x10
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#define ED_3COM_BCFR_330 0x20
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#define ED_3COM_BCFR_310 0x40
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#define ED_3COM_BCFR_300 0x80
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/*
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* EPROM Configuration Register. Read-only register which contains the
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* board-configured memory base address. Bit encoded.
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*/
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#define ED_3COM_PCFR 4
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#define ED_3COM_PCFR_C8000 0x10
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#define ED_3COM_PCFR_CC000 0x20
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#define ED_3COM_PCFR_D8000 0x40
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#define ED_3COM_PCFR_DC000 0x80
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/*
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|
* GA Configuration Register. Gate-Array Configuration Register.
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|
*/
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#define ED_3COM_GACFR 5
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/*
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|
* mbs2 mbs1 mbs0 start address
|
|
* 0 0 0 0x0000
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|
* 0 0 1 0x2000
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|
* 0 1 0 0x4000
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|
* 0 1 1 0x6000
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|
*
|
|
* Note that with adapters with only 8K, the setting for 0x2000 must
|
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* always be used.
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*/
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#define ED_3COM_GACFR_MBS0 0x01
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#define ED_3COM_GACFR_MBS1 0x02
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#define ED_3COM_GACFR_MBS2 0x04
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#define ED_3COM_GACFR_RSEL 0x08 /* enable shared memory */
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#define ED_3COM_GACFR_TEST 0x10 /* for GA testing */
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#define ED_3COM_GACFR_OWS 0x20 /* select 0WS access to GA */
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#define ED_3COM_GACFR_TCM 0x40 /* Mask DMA interrupts */
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|
#define ED_3COM_GACFR_NIM 0x80 /* Mask NIC interrupts */
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|
|
/*
|
|
* Control Register. Miscellaneous control functions.
|
|
*/
|
|
#define ED_3COM_CR 6
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#define ED_3COM_CR_RST 0x01 /* Reset GA and NIC */
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#define ED_3COM_CR_XSEL 0x02 /* Transceiver select. BNC=1(def) AUI=0 */
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#define ED_3COM_CR_EALO 0x04 /* window EA PROM 0-15 to I/O base */
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#define ED_3COM_CR_EAHI 0x08 /* window EA PROM 16-31 to I/O base */
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|
#define ED_3COM_CR_SHARE 0x10 /* select interrupt sharing option */
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#define ED_3COM_CR_DBSEL 0x20 /* Double buffer select */
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|
#define ED_3COM_CR_DDIR 0x40 /* DMA direction select */
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|
#define ED_3COM_CR_START 0x80 /* Start DMA controller */
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|
|
/*
|
|
* Status Register. Miscellaneous status information.
|
|
*/
|
|
#define ED_3COM_STREG 7
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|
|
|
#define ED_3COM_STREG_REV 0x07 /* GA revision */
|
|
#define ED_3COM_STREG_DIP 0x08 /* DMA in progress */
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|
#define ED_3COM_STREG_DTC 0x10 /* DMA terminal count */
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|
#define ED_3COM_STREG_OFLW 0x20 /* Overflow */
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|
#define ED_3COM_STREG_UFLW 0x40 /* Underflow */
|
|
#define ED_3COM_STREG_DPRDY 0x80 /* Data port ready */
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|
|
/*
|
|
* Interrupt/DMA Configuration Register
|
|
*/
|
|
#define ED_3COM_IDCFR 8
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|
|
|
#define ED_3COM_IDCFR_DRQ0 0x01 /* DMA request 1 select */
|
|
#define ED_3COM_IDCFR_DRQ1 0x02 /* DMA request 2 select */
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|
#define ED_3COM_IDCFR_DRQ2 0x04 /* DMA request 3 select */
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|
#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 */
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|
#define ED_3COM_IDCFR_IRQ4 0x40 /* Interrupt request 4 select */
|
|
#define ED_3COM_IDCFR_IRQ5 0x80 /* Interrupt request 5 select */
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|
|
/*
|
|
* DMA Address Register MSB
|
|
*/
|
|
#define ED_3COM_DAMSB 9
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|
|
|
/*
|
|
* DMA Address Register LSB
|
|
*/
|
|
#define ED_3COM_DALSB 0x0a
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|
|
/*
|
|
* Vector Pointer Register 2
|
|
*/
|
|
#define ED_3COM_VPTR2 0x0b
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|
|
/*
|
|
* Vector Pointer Register 1
|
|
*/
|
|
#define ED_3COM_VPTR1 0x0c
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|
|
/*
|
|
* Vector Pointer Register 0
|
|
*/
|
|
#define ED_3COM_VPTR0 0x0d
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|
|
/*
|
|
* Register File Access MSB
|
|
*/
|
|
#define ED_3COM_RFMSB 0x0e
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|
|
/*
|
|
* Register File Access LSB
|
|
*/
|
|
#define ED_3COM_RFLSB 0x0f
|