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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com20020.h (3738B)

      1/*
      2 * Linux ARCnet driver - COM20020 chipset support - function declarations
      3 *
      4 * Written 1997 by David Woodhouse.
      5 * Written 1994-1999 by Avery Pennarun.
      6 * Derived from skeleton.c by Donald Becker.
      7 *
      8 * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
      9 *  for sponsoring the further development of this driver.
     10 *
     11 * **********************
     12 *
     13 * The original copyright of skeleton.c was as follows:
     14 *
     15 * skeleton.c Written 1993 by Donald Becker.
     16 * Copyright 1993 United States Government as represented by the
     17 * Director, National Security Agency.  This software may only be used
     18 * and distributed according to the terms of the GNU General Public License as
     19 * modified by SRC, incorporated herein by reference.
     20 *
     21 * **********************
     22 *
     23 * For more details, see drivers/net/arcnet.c
     24 *
     25 * **********************
     26 */
     27#ifndef __COM20020_H
     28#define __COM20020_H
     29#include <linux/leds.h>
     30
     31int com20020_check(struct net_device *dev);
     32int com20020_found(struct net_device *dev, int shared);
     33extern const struct net_device_ops com20020_netdev_ops;
     34
     35/* The number of low I/O ports used by the card. */
     36#define ARCNET_TOTAL_SIZE 8
     37
     38#define PLX_PCI_MAX_CARDS 2
     39
     40struct ledoffsets {
     41	int green;
     42	int red;
     43};
     44
     45struct com20020_pci_channel_map {
     46	u32 bar;
     47	u32 offset;
     48	u32 size;               /* 0x00 - auto, e.g. length of entire bar */
     49};
     50
     51struct com20020_pci_card_info {
     52	const char *name;
     53	int devcount;
     54
     55	struct com20020_pci_channel_map chan_map_tbl[PLX_PCI_MAX_CARDS];
     56	struct com20020_pci_channel_map misc_map;
     57
     58	struct ledoffsets leds[PLX_PCI_MAX_CARDS];
     59	int rotary;
     60
     61	unsigned int flags;
     62};
     63
     64struct com20020_priv {
     65	struct com20020_pci_card_info *ci;
     66	struct list_head list_dev;
     67	resource_size_t misc;
     68};
     69
     70struct com20020_dev {
     71	struct list_head list;
     72	struct net_device *dev;
     73
     74	struct led_classdev tx_led;
     75	struct led_classdev recon_led;
     76
     77	struct com20020_priv *pci_priv;
     78	int index;
     79};
     80
     81#define COM20020_REG_W_INTMASK	0	/* writable */
     82#define COM20020_REG_R_STATUS	0	/* readable */
     83#define COM20020_REG_W_COMMAND	1	/* standard arcnet commands */
     84#define COM20020_REG_R_DIAGSTAT	1	/* diagnostic status */
     85#define COM20020_REG_W_ADDR_HI	2	/* control for IO-mapped memory */
     86#define COM20020_REG_W_ADDR_LO	3
     87#define COM20020_REG_RW_MEMDATA	4	/* data port for IO-mapped memory */
     88#define COM20020_REG_W_SUBADR	5	/* the extended port _XREG refers to */
     89#define COM20020_REG_W_CONFIG	6	/* configuration */
     90#define COM20020_REG_W_XREG	7	/* extra
     91					 * (indexed by _CONFIG or _SUBADDR)
     92					 */
     93
     94/* in the ADDR_HI register */
     95#define RDDATAflag	0x80	/* next access is a read (not a write) */
     96
     97/* in the DIAGSTAT register */
     98#define NEWNXTIDflag	0x02	/* ID to which token is passed has changed */
     99
    100/* in the CONFIG register */
    101#define RESETcfg	0x80	/* put card in reset state */
    102#define TXENcfg		0x20	/* enable TX */
    103#define XTOcfg(x)	((x) << 3)	/* extended timeout */
    104
    105/* in SETUP register */
    106#define PROMISCset	0x10	/* enable RCV_ALL */
    107#define P1MODE		0x80    /* enable P1-MODE for Backplane */
    108#define SLOWARB		0x01    /* enable Slow Arbitration for >=5Mbps */
    109
    110/* COM2002x */
    111#define SUB_TENTATIVE	0	/* tentative node ID */
    112#define SUB_NODE	1	/* node ID */
    113#define SUB_SETUP1	2	/* various options */
    114#define SUB_TEST	3	/* test/diag register */
    115
    116/* COM20022 only */
    117#define SUB_SETUP2	4	/* sundry options */
    118#define SUB_BUSCTL	5	/* bus control options */
    119#define SUB_DMACOUNT	6	/* DMA count options */
    120
    121static inline void com20020_set_subaddress(struct arcnet_local *lp,
    122					   int ioaddr, int val)
    123{
    124	if (val < 4) {
    125		lp->config = (lp->config & ~0x03) | val;
    126		arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG);
    127	} else {
    128		arcnet_outb(val, ioaddr, COM20020_REG_W_SUBADR);
    129	}
    130}
    131
    132#endif /* __COM20020_H */