cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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a2065.h (5135B)


      1/*
      2 * Amiga Linux/68k A2065 Ethernet Driver
      3 *
      4 * (C) Copyright 1995 by Geert Uytterhoeven <geert@linux-m68k.org>
      5 *
      6 * ---------------------------------------------------------------------------
      7 *
      8 * This program is based on
      9 *
     10 *	ariadne.?:	Amiga Linux/68k Ariadne Ethernet Driver
     11 *			(C) Copyright 1995 by Geert Uytterhoeven,
     12 *			Peter De Schrijver
     13 *
     14 *	lance.c:	An AMD LANCE ethernet driver for linux.
     15 *			Written 1993-94 by Donald Becker.
     16 *
     17 *	Am79C960:	PCnet(tm)-ISA Single-Chip Ethernet Controller
     18 *			Advanced Micro Devices
     19 *			Publication #16907, Rev. B, Amendment/0, May 1994
     20 *
     21 * ---------------------------------------------------------------------------
     22 *
     23 * This file is subject to the terms and conditions of the GNU General Public
     24 * License.  See the file COPYING in the main directory of the Linux
     25 * distribution for more details.
     26 *
     27 * ---------------------------------------------------------------------------
     28 *
     29 * The A2065 is a Zorro-II board made by Commodore/Ameristar. It contains:
     30 *
     31 *	- an Am7990 Local Area Network Controller for Ethernet (LANCE) with
     32 *	  both 10BASE-2 (thin coax) and AUI (DB-15) connectors
     33 */
     34
     35
     36/*
     37 *		Am7990 Local Area Network Controller for Ethernet (LANCE)
     38 */
     39
     40struct lance_regs {
     41	unsigned short rdp;		/* Register Data Port */
     42	unsigned short rap;		/* Register Address Port */
     43};
     44
     45
     46/*
     47 *		Am7990 Control and Status Registers
     48 */
     49
     50#define LE_CSR0		0x0000		/* LANCE Controller Status */
     51#define LE_CSR1		0x0001		/* IADR[15:0] */
     52#define LE_CSR2		0x0002		/* IADR[23:16] */
     53#define LE_CSR3		0x0003		/* Misc */
     54
     55
     56/*
     57 *		Bit definitions for CSR0 (LANCE Controller Status)
     58 */
     59
     60#define LE_C0_ERR	0x8000		/* Error */
     61#define LE_C0_BABL	0x4000		/* Babble: Transmitted too many bits */
     62#define LE_C0_CERR	0x2000		/* No Heartbeat (10BASE-T) */
     63#define LE_C0_MISS	0x1000		/* Missed Frame */
     64#define LE_C0_MERR	0x0800		/* Memory Error */
     65#define LE_C0_RINT	0x0400		/* Receive Interrupt */
     66#define LE_C0_TINT	0x0200		/* Transmit Interrupt */
     67#define LE_C0_IDON	0x0100		/* Initialization Done */
     68#define LE_C0_INTR	0x0080		/* Interrupt Flag */
     69#define LE_C0_INEA	0x0040		/* Interrupt Enable */
     70#define LE_C0_RXON	0x0020		/* Receive On */
     71#define LE_C0_TXON	0x0010		/* Transmit On */
     72#define LE_C0_TDMD	0x0008		/* Transmit Demand */
     73#define LE_C0_STOP	0x0004		/* Stop */
     74#define LE_C0_STRT	0x0002		/* Start */
     75#define LE_C0_INIT	0x0001		/* Initialize */
     76
     77
     78/*
     79 *		Bit definitions for CSR3
     80 */
     81
     82#define LE_C3_BSWP	0x0004		/* Byte Swap
     83					   (on for big endian byte order) */
     84#define LE_C3_ACON	0x0002		/* ALE Control
     85					   (on for active low ALE) */
     86#define LE_C3_BCON	0x0001		/* Byte Control */
     87
     88
     89/*
     90 *		Mode Flags
     91 */
     92
     93#define LE_MO_PROM	0x8000		/* Promiscuous Mode */
     94#define LE_MO_INTL	0x0040		/* Internal Loopback */
     95#define LE_MO_DRTY	0x0020		/* Disable Retry */
     96#define LE_MO_FCOLL	0x0010		/* Force Collision */
     97#define LE_MO_DXMTFCS	0x0008		/* Disable Transmit CRC */
     98#define LE_MO_LOOP	0x0004		/* Loopback Enable */
     99#define LE_MO_DTX	0x0002		/* Disable Transmitter */
    100#define LE_MO_DRX	0x0001		/* Disable Receiver */
    101
    102
    103struct lance_rx_desc {
    104	unsigned short rmd0;        /* low address of packet */
    105	unsigned char  rmd1_bits;   /* descriptor bits */
    106	unsigned char  rmd1_hadr;   /* high address of packet */
    107	short    length;    	    /* This length is 2s complement (negative)!
    108				     * Buffer length
    109				     */
    110	unsigned short mblength;    /* Aactual number of bytes received */
    111};
    112
    113struct lance_tx_desc {
    114	unsigned short tmd0;        /* low address of packet */
    115	unsigned char  tmd1_bits;   /* descriptor bits */
    116	unsigned char  tmd1_hadr;   /* high address of packet */
    117	short    length;       	    /* Length is 2s complement (negative)! */
    118	unsigned short misc;
    119};
    120
    121
    122/*
    123 *		Receive Flags
    124 */
    125
    126#define LE_R1_OWN	0x80		/* LANCE owns the descriptor */
    127#define LE_R1_ERR	0x40		/* Error */
    128#define LE_R1_FRA	0x20		/* Framing Error */
    129#define LE_R1_OFL	0x10		/* Overflow Error */
    130#define LE_R1_CRC	0x08		/* CRC Error */
    131#define LE_R1_BUF	0x04		/* Buffer Error */
    132#define LE_R1_SOP	0x02		/* Start of Packet */
    133#define LE_R1_EOP	0x01		/* End of Packet */
    134#define LE_R1_POK       0x03		/* Packet is complete: SOP + EOP */
    135
    136
    137/*
    138 *		Transmit Flags
    139 */
    140
    141#define LE_T1_OWN	0x80		/* LANCE owns the descriptor */
    142#define LE_T1_ERR	0x40		/* Error */
    143#define LE_T1_RES	0x20		/* Reserved,
    144					   LANCE writes this with a zero */
    145#define LE_T1_EMORE	0x10		/* More than one retry needed */
    146#define LE_T1_EONE	0x08		/* One retry needed */
    147#define LE_T1_EDEF	0x04		/* Deferred */
    148#define LE_T1_SOP	0x02		/* Start of Packet */
    149#define LE_T1_EOP	0x01		/* End of Packet */
    150#define LE_T1_POK	0x03		/* Packet is complete: SOP + EOP */
    151
    152
    153/*
    154 *		Error Flags
    155 */
    156
    157#define LE_T3_BUF 	0x8000		/* Buffer Error */
    158#define LE_T3_UFL 	0x4000		/* Underflow Error */
    159#define LE_T3_LCOL 	0x1000		/* Late Collision */
    160#define LE_T3_CLOS 	0x0800		/* Loss of Carrier */
    161#define LE_T3_RTY 	0x0400		/* Retry Error */
    162#define LE_T3_TDR	0x03ff		/* Time Domain Reflectometry */
    163
    164
    165/*
    166 *		A2065 Expansion Board Structure
    167 */
    168
    169#define A2065_LANCE		0x4000
    170
    171#define A2065_RAM		0x8000
    172#define A2065_RAM_SIZE		0x8000
    173