/* * Linux ARCnet driver - "RIM I" (entirely mem-mapped) cards * * Written 1994-1999 by Avery Pennarun. * Written 1999-2000 by Martin Mares <[email protected]>. * Derived from skeleton.c by Donald Becker. * * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com) * for sponsoring the further development of this driver. * * ********************** * * The original copyright of skeleton.c was as follows: * * skeleton.c Written 1993 by Donald Becker. * Copyright 1993 United States Government as represented by the * Director, National Security Agency. This software may only be used * and distributed according to the terms of the GNU General Public License as * modified by SRC, incorporated herein by reference. * * ********************** * * For more details, see drivers/net/arcnet.c * * ********************** */ #define pr_fmt(fmt) … #include <linux/kernel.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/ioport.h> #include <linux/delay.h> #include <linux/netdevice.h> #include <linux/memblock.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/io.h> #include "arcdevice.h" #include "com9026.h" /* Internal function declarations */ static int arcrimi_probe(struct net_device *dev); static int arcrimi_found(struct net_device *dev); static void arcrimi_command(struct net_device *dev, int command); static int arcrimi_status(struct net_device *dev); static void arcrimi_setmask(struct net_device *dev, int mask); static int arcrimi_reset(struct net_device *dev, int really_reset); static void arcrimi_copy_to_card(struct net_device *dev, int bufnum, int offset, void *buf, int count); static void arcrimi_copy_from_card(struct net_device *dev, int bufnum, int offset, void *buf, int count); /* Handy defines for ARCnet specific stuff */ /* Amount of I/O memory used by the card */ #define BUFFER_SIZE … #define MIRROR_SIZE … /* We cannot probe for a RIM I card; one reason is I don't know how to reset * them. In fact, we can't even get their node ID automatically. So, we * need to be passed a specific shmem address, IRQ, and node ID. */ static int __init arcrimi_probe(struct net_device *dev) { … } static int check_mirror(unsigned long addr, size_t size) { … } /* Set up the struct net_device associated with this card. * Called after probing succeeds. */ static int __init arcrimi_found(struct net_device *dev) { … } /* Do a hardware reset on the card, and set up necessary registers. * * This should be called as little as possible, because it disrupts the * token on the network (causes a RECON) and requires a significant delay. * * However, it does make sure the card is in a defined state. */ static int arcrimi_reset(struct net_device *dev, int really_reset) { … } static void arcrimi_setmask(struct net_device *dev, int mask) { … } static int arcrimi_status(struct net_device *dev) { … } static void arcrimi_command(struct net_device *dev, int cmd) { … } static void arcrimi_copy_to_card(struct net_device *dev, int bufnum, int offset, void *buf, int count) { … } static void arcrimi_copy_from_card(struct net_device *dev, int bufnum, int offset, void *buf, int count) { … } static int node; static int io; /* use the insmod io= irq= node= options */ static int irq; static char device[9]; /* use eg. device=arc1 to change name */ module_param(node, int, 0); module_param(io, int, 0); module_param(irq, int, 0); module_param_string(…); MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; static struct net_device *my_dev; static int __init arc_rimi_init(void) { … } static void __exit arc_rimi_exit(void) { … } #ifndef MODULE static int __init arcrimi_setup(char *s) { … } __setup(…); #endif /* MODULE */ module_init(…) … module_exit(…)
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