178 lines
7.2 KiB
C
178 lines
7.2 KiB
C
/*
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* Copyright (c) 1994 Matt Thomas (thomas@lkg.dec.com)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id$
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*/
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#ifndef _LEMAC_H_
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#define _LEMAC_H_
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/*
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* This is list of registers used on a DEC EtherWORKS III card.
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* Each board occupies a 32 byte register space. This can be
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* in either EISA or ISA space. Currently we only support ISA
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* space.
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*/
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#define LEMAC_REG_CS 0x00 /* Control and Status */
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#define LEMAC_REG_CTL 0x01 /* Control */
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#define LEMAC_REG_IC 0x02 /* Interrupt Control */
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#define LEMAC_REG_TS 0x03 /* Transmit Status */
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#define LEMAC_REG_RSVD1 0x04 /* Reserved (not used) */
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#define LEMAC_REG_RSVD2 0x05 /* Reserved (not used) */
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#define LEMAC_REG_FMQ 0x06 /* Free Memory Queue */
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#define LEMAC_REG_FMC 0x07 /* Free Memory Queue Count */
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#define LEMAC_REG_RQ 0x08 /* Receive Queue */
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#define LEMAC_REG_RQC 0x09 /* Receive Queue Count */
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#define LEMAC_REG_TQ 0x0A /* Transmit Queue */
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#define LEMAC_REG_TQC 0x0B /* Transmit Queue Count */
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#define LEMAC_REG_TDQ 0x0C /* Transmit Done Queue */
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#define LEMAC_REG_TDC 0x0D /* Transmit Done Queue Count */
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#define LEMAC_REG_PI1 0x0E /* Page Index #1 */
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#define LEMAC_REG_PI2 0x0F /* Page Index #2 */
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#define LEMAC_REG_DAT 0x10 /* Data */
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#define LEMAC_REG_IOP 0x11 /* I/O Page */
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#define LEMAC_REG_IOB 0x12 /* I/O Base */
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#define LEMAC_REG_MPN 0x13 /* Memory Page */
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#define LEMAC_REG_MBR 0x14 /* Memory Base */
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#define LEMAC_REG_APD 0x15 /* Address PROM */
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#define LEMAC_REG_EE1 0x16 /* EEPROM Data #1 */
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#define LEMAC_REG_EE2 0x17 /* EEPROM Data #2 */
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#define LEMAC_REG_PA0 0x18 /* Physical Address (Byte 0) */
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#define LEMAC_REG_PA1 0x19 /* Physical Address (Byte 1) */
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#define LEMAC_REG_PA2 0x1A /* Physical Address (Byte 2) */
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#define LEMAC_REG_PA3 0x1B /* Physical Address (Byte 3) */
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#define LEMAC_REG_PA4 0x1C /* Physical Address (Byte 4) */
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#define LEMAC_REG_PA5 0x1D /* Physical Address (Byte 5) */
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#define LEMAC_REG_CNF 0x1E /* Configuration Management */
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#define LEMAC_IOSPACE 0x20 /* LEMAC uses 32 bytes of IOSPACE */
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#define LEMAC_REG_EID0 0x80 /* EISA Identification 0 */
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#define LEMAC_REG_EID1 0x81 /* EISA Identification 1 */
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#define LEMAC_REG_EID2 0x82 /* EISA Identification 2 */
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#define LEMAC_REG_EID3 0x83 /* EISA Identification 3 */
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#define LEMAC_REG_EIC 0x84 /* EISA Control */
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/* Control Page (Page 0) Definitions */
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#define LEMAC_MCTBL_BITS 9
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#define LEMAC_MCTBL_OFF 512
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#define LEMAC_MCTBL_SIZE (1 << (LEMAC_MCTBL_BITS - 3))
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#define LEMAC_CRC32_POLY 0xEDB88320UL /* CRC-32 Poly -- Little Endian) */
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/* EEPROM Definitions */
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#define LEMAC_EEP_CKSUM 0 /* The valid checksum is 0 */
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#define LEMAC_EEP_SIZE 32 /* EEPROM is 32 bytes */
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#define LEMAC_EEP_DELAY 2000 /* 2ms = 2000us */
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#define LEMAC_EEP_PRDNM 8 /* Product Name Offset */
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#define LEMAC_EEP_PRDNMSZ 8 /* Product Name Size */
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#define LEMAC_EEP_SWFLAGS 16 /* Software Options Offset */
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#define LEMAC_EEP_SETUP 23 /* Setup Options Offset */
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#define LEMAC_EEP_SW_SQE 0x10 /* Enable TX_SQE on Transmits */
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#define LEMAC_EEP_SW_LAB 0x08 /* Enable TX_LAB on Transmits */
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#define LEMAC_EEP_ST_DRAM 0x02 /* Enable extra DRAM */
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#define LEMAC_ADP_ROMSZ 32 /* Size of Address PROM */
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/* Receive Status Definitions */
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#define LEMAC_RX_PLL 0x01 /* Phase Lock Lost */
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#define LEMAC_RX_CRC 0x02 /* CRC Error */
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#define LEMAC_RX_DBE 0x04 /* Dribble Bit Error */
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#define LEMAC_RX_MCM 0x08 /* Multicast Match */
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#define LEMAC_RX_IAM 0x10 /* Individual Address Match */
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#define LEMAC_RX_OK 0x80 /* No Errors */
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/* Transmit Status Definitions (not valid if TXD == 0) */
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#define LEMAC_TS_RTRYMSK 0x0F /* Retries of last TX PDU */
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#define LEMAC_TS_ECL 0x10 /* Excessive collision of ... */
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#define LEMAC_TS_LCL 0x20 /* Late collision of ... */
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#define LEMAC_TS_ID 0x40 /* Initially Deferred ... */
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/* Transmit Control Definitions */
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#define LEMAC_TX_ISA 0x01 /* Insert Source Address (no) */
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#define LEMAC_TX_IFC 0x02 /* Insert Frame Check (yes) */
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#define LEMAC_TX_PAD 0x04 /* Zero PAD to mininum length (yes) */
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#define LEMAC_TX_LAB 0x08 /* Less Agressive Backoff (no) */
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#define LEMAC_TX_QMD 0x10 /* Q-Mode (yes) */
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#define LEMAC_TX_STP 0x20 /* Stop on Error (yes) */
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#define LEMAC_TX_SQE 0x40 /* SQE Enable (yes) */
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#define LEMAC_TX_FLAGS (LEMAC_TX_IFC|LEMAC_TX_PAD|LEMAC_TX_QMD|\
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LEMAC_TX_STP|LEMAC_TX_SQE)
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#define LEMAC_TX_HDRSZ 4 /* Size of TX header */
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/* Transmit Done Queue Status Definitions */
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#define LEMAC_TDQ_COL 0x03 /* Collision Mask */
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#define LEMAC_TDQ_NOCOL 0x00 /* No Collisions */
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#define LEMAC_TDQ_ONECOL 0x01 /* One Collision */
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#define LEMAC_TDQ_MULCOL 0x02 /* Multiple Collisions */
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#define LEMAC_TDQ_EXCCOL 0x03 /* Excesive Collisions */
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#define LEMAC_TDQ_ID 0x04 /* Initially Deferred */
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#define LEMAC_TDQ_LCL 0x08 /* Late Collision (will TX_STP) */
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/* Control / Status Definitions */
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#define LEMAC_CS_RXD 0x01 /* Receiver Disabled */
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#define LEMAC_CS_TXD 0x02 /* Transmitter Disabled */
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#define LEMAC_CS_RNE 0x04 /* Receive Queue Not Empty */
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#define LEMAC_CS_TNE 0x08 /* Transmit Done Queue Not Empty */
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#define LEMAC_CS_MBZ4 0x10 /* MBZ */
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#define LEMAC_CS_MCE 0x20 /* Multicast Enable */
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#define LEMAC_CS_PME 0x40 /* Promiscuous Mode Enable */
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#define LEMAC_CS_RA 0x80 /* Runt Accept */
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/* Control Definitions */
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#define LEMAC_CTL_LED 0x02 /* LED state (inverted) */
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/* Interrupt Control Definitions */
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#define LEMAC_IC_RXD 0x01 /* Enable RXD Interrupt */
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#define LEMAC_IC_TXD 0x02 /* Enable TXD Interrupt */
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#define LEMAC_IC_RNE 0x04 /* Enable RNE Interrupt */
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#define LEMAC_IC_TNE 0x08 /* Enable TNE Interrupt */
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#define LEMAC_IC_ALL 0x0F /* Enable RXD,TXD,RNE,TNE */
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#define LEMAC_IC_IRQMSK 0x60 /* Interrupt Select */
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#define LEMAC_IC_IRQ5 0x00 /* Select IRQ 5 */
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#define LEMAC_IC_IRQ10 0x20 /* Select IRQ 10 */
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#define LEMAC_IC_IRQ11 0x40 /* Select IRQ 11 */
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#define LEMAC_IC_IRQ15 0x60 /* Select IRQ 15 */
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#define LEMAC_IC_IE 0x80 /* Interrupt Enable */
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/* I/O Page Definitions */
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#define LEMAC_IOP_EEINIT 0xC0 /* Perform a board init/reset */
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#define LEMAC_IOP_EEREAD 0xE0 /* Start a read from EEPROM */
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/* Configuration / Management Definitions */
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#define LEMAC_CNF_DRAM 0x02 /* Extra on-board DRAM is available */
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#endif /* _LEMAC_H_ */
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