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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* linux/drivers/acorn/net/ether3.h
*
* Copyright (C) 1995-2000 Russell King
*
* network driver for Acorn/ANT Ether3 cards
*/
#ifndef _LINUX_ether3_H
#define _LINUX_ether3_H
/* use 0 for production, 1 for verification, >2 for debug. debug flags: */
#define DEBUG_TX 2
#define DEBUG_RX 4
#define DEBUG_INT 8
#define DEBUG_IC 16
#ifndef NET_DEBUG
#define NET_DEBUG 0
#endif
#define priv(dev) ((struct dev_priv *)netdev_priv(dev))
/* Command register definitions & bits */
#define REG_COMMAND (priv(dev)->seeq + 0x0000)
#define CMD_ENINTDMA 0x0001
#define CMD_ENINTRX 0x0002
#define CMD_ENINTTX 0x0004
#define CMD_ENINTBUFWIN 0x0008
#define CMD_ACKINTDMA 0x0010
#define CMD_ACKINTRX 0x0020
#define CMD_ACKINTTX 0x0040
#define CMD_ACKINTBUFWIN 0x0080
#define CMD_DMAON 0x0100
#define CMD_RXON 0x0200
#define CMD_TXON 0x0400
#define CMD_DMAOFF 0x0800
#define CMD_RXOFF 0x1000
#define CMD_TXOFF 0x2000
#define CMD_FIFOREAD 0x4000
#define CMD_FIFOWRITE 0x8000
/* status register */
#define REG_STATUS (priv(dev)->seeq + 0x0000)
#define STAT_ENINTSTAT 0x0001
#define STAT_ENINTRX 0x0002
#define STAT_ENINTTX 0x0004
#define STAT_ENINTBUFWIN 0x0008
#define STAT_INTDMA 0x0010
#define STAT_INTRX 0x0020
#define STAT_INTTX 0x0040
#define STAT_INTBUFWIN 0x0080
#define STAT_DMAON 0x0100
#define STAT_RXON 0x0200
#define STAT_TXON 0x0400
#define STAT_FIFOFULL 0x2000
#define STAT_FIFOEMPTY 0x4000
#define STAT_FIFODIR 0x8000
/* configuration register 1 */
#define REG_CONFIG1 (priv(dev)->seeq + 0x0040)
#define CFG1_BUFSELSTAT0 0x0000
#define CFG1_BUFSELSTAT1 0x0001
#define CFG1_BUFSELSTAT2 0x0002
#define CFG1_BUFSELSTAT3 0x0003
#define CFG1_BUFSELSTAT4 0x0004
#define CFG1_BUFSELSTAT5 0x0005
#define CFG1_ADDRPROM 0x0006
#define CFG1_TRANSEND 0x0007
#define CFG1_LOCBUFMEM 0x0008
#define CFG1_INTVECTOR 0x0009
#define CFG1_RECVSPECONLY 0x0000
#define CFG1_RECVSPECBROAD 0x4000
#define CFG1_RECVSPECBRMULTI 0x8000
#define CFG1_RECVPROMISC 0xC000
/* The following aren't in 8004 */
#define CFG1_DMABURSTCONT 0x0000
#define CFG1_DMABURST800NS 0x0010
#define CFG1_DMABURST1600NS 0x0020
#define CFG1_DMABURST3200NS 0x0030
#define CFG1_DMABURST1 0x0000
#define CFG1_DMABURST4 0x0040
#define CFG1_DMABURST8 0x0080
#define CFG1_DMABURST16 0x00C0
#define CFG1_RECVCOMPSTAT0 0x0100
#define CFG1_RECVCOMPSTAT1 0x0200
#define CFG1_RECVCOMPSTAT2 0x0400
#define CFG1_RECVCOMPSTAT3 0x0800
#define CFG1_RECVCOMPSTAT4 0x1000
#define CFG1_RECVCOMPSTAT5 0x2000
/* configuration register 2 */
#define REG_CONFIG2 (priv(dev)->seeq + 0x0080)
#define CFG2_BYTESWAP 0x0001
#define CFG2_ERRENCRC 0x0008
#define CFG2_ERRENDRIBBLE 0x0010
#define CFG2_ERRSHORTFRAME 0x0020
#define CFG2_SLOTSELECT 0x0040
#define CFG2_PREAMSELECT 0x0080
#define CFG2_ADDRLENGTH 0x0100
#define CFG2_RECVCRC 0x0200
#define CFG2_XMITNOCRC 0x0400
#define CFG2_LOOPBACK 0x0800
#define CFG2_CTRLO 0x1000
#define CFG2_RESET 0x8000
#define REG_RECVEND (priv(dev)->seeq + 0x00c0)
#define REG_BUFWIN (priv(dev)->seeq + 0x0100)
#define REG_RECVPTR (priv(dev)->seeq + 0x0140)
#define REG_TRANSMITPTR (priv(dev)->seeq + 0x0180)
#define REG_DMAADDR (priv(dev)->seeq + 0x01c0)
/*
* Cards transmit/receive headers
*/
#define TX_NEXT (0xffff)
#define TXHDR_ENBABBLEINT (1 << 16)
#define TXHDR_ENCOLLISIONINT (1 << 17)
#define TXHDR_EN16COLLISION (1 << 18)
#define TXHDR_ENSUCCESS (1 << 19)
#define TXHDR_DATAFOLLOWS (1 << 21)
#define TXHDR_CHAINCONTINUE (1 << 22)
#define TXHDR_TRANSMIT (1 << 23)
#define TXSTAT_BABBLED (1 << 24)
#define TXSTAT_COLLISION (1 << 25)
#define TXSTAT_16COLLISIONS (1 << 26)
#define TXSTAT_DONE (1 << 31)
#define RX_NEXT (0xffff)
#define RXHDR_CHAINCONTINUE (1 << 6)
#define RXHDR_RECEIVE (1 << 7)
#define RXSTAT_OVERSIZE (1 << 8)
#define RXSTAT_CRCERROR (1 << 9)
#define RXSTAT_DRIBBLEERROR (1 << 10)
#define RXSTAT_SHORTPACKET (1 << 11)
#define RXSTAT_DONE (1 << 15)
#define TX_START 0x0000
#define TX_END 0x6000
#define RX_START 0x6000
#define RX_LEN 0xA000
#define RX_END 0x10000
/* must be a power of 2 and greater than MAX_TX_BUFFERED */
#define MAX_TXED 16
#define MAX_TX_BUFFERED 10
struct dev_priv {
void __iomem *base;
void __iomem *seeq;
struct {
unsigned int command;
unsigned int config1;
unsigned int config2;
} regs;
unsigned char tx_head; /* buffer nr to insert next packet */
unsigned char tx_tail; /* buffer nr of transmitting packet */
unsigned int rx_head; /* address to fetch next packet from */
struct timer_list timer;
struct net_device *dev;
int broken; /* 0 = ok, 1 = something went wrong */
};
struct ether3_data {
const char name[8];
unsigned long base_offset;
};
#endif
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