+++ /dev/null
-Released 1994-06-13
-
-
- CONTENTS:
-
- 1. Introduction.
- 2. License.
- 3. Files in this release.
- 4. Installation.
- 5. Problems and tuning.
- 6. Using the drivers with earlier releases.
- 7. Acknowledgments.
-
-
- 1. INTRODUCTION.
-
- This is a set of Ethernet drivers for the D-Link DE-600/DE-620
- pocket adapters, for the parallel port on a Linux based machine.
- Some adapter "clones" will also work. Xircom is _not_ a clone...
- These drivers _can_ be used as loadable modules,
- and were developed for use on Linux 1.1.13 and above.
- For use on Linux 1.0.X, or earlier releases, see below.
-
- I have used these drivers for NFS, ftp, telnet and X-clients on
- remote machines. Transmissions with ftp seems to work as
- good as can be expected (i.e. > 80k bytes/sec) from a
- parallel port...:-) Receive speeds will be about 60-80% of this.
- Depending on your machine, somewhat higher speeds can be achieved.
-
- All comments/fixes to Bjorn Ekwall (bj0rn@blox.se).
-
-
- 2. LICENSE.
-
- This program is free software; you can redistribute it
- and/or modify it under the terms of the GNU General Public
- License as published by the Free Software Foundation; either
- version 2, or (at your option) any later version.
-
- This program is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied
- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- PURPOSE. See the GNU General Public License for more
- details.
-
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 675 Mass Ave, Cambridge, MA
- 02139, USA.
-
-
- 3. FILES IN THIS RELEASE.
-
- README.DLINK This file.
- de600.c The Source (may it be with You :-) for the DE-600
- de620.c ditto for the DE-620
- de620.h Macros for de620.c
-
- If you are upgrading from the d-link tar release, there will
- also be a "dlink-patches" file that will patch Linux 1.1.18:
- linux/drivers/net/Makefile
- linux/drivers/net/CONFIG
- linux/drivers/net/MODULES
- linux/drivers/net/Space.c
- linux/config.in
- Apply the patch by:
- "cd /usr/src; patch -p0 < linux/drivers/net/dlink-patches"
- The old source, "linux/drivers/net/d_link.c", can be removed.
-
-
- 4. INSTALLATION.
-
- o Get the latest net binaries, according to current net.wisdom.
-
- o Read the NET-2 and Ethernet HOWTOs and modify your setup.
-
- o If your parallel port has a strange address or irq,
- modify "linux/drivers/net/CONFIG" accordingly, or adjust
- the parameters in the "tuning" section in the sources.
-
- If you are going to use the drivers as loadable modules, do _not_
- enable them while doing "make config", but instead make sure that
- the drivers are included in "linux/drivers/net/MODULES".
-
- If you are _not_ going to use the driver(s) as loadable modules,
- but instead have them included in the kernel, remember to enable
- the drivers while doing "make config".
-
- o To include networking and DE600/DE620 support in your kernel:
- # cd /linux
- (as modules:)
- # make config (answer yes on CONFIG_NET and CONFIG_INET)
- (else included in the kernel:)
- # make config (answer yes on CONFIG _NET, _INET and _DE600 or _DE620)
- # make clean
- # make zImage (or whatever magic you usually do)
-
- o I use lilo to boot multiple kernels, so that I at least
- can have one working kernel :-). If you do too, append
- these lines to /etc/lilo/config:
-
- image = /linux/zImage
- label = newlinux
- root = /dev/hda2 (or whatever YOU have...)
-
- # /etc/lilo/install
-
- o Do "sync" and reboot the new kernel with a D-Link
- DE-600/DE-620 pocket adapter connected.
-
- o The adapter can be configured with ifconfig eth?
- where the actual number is decided by the kernel
- when the drivers are initialized.
-
-
- 5. "PROBLEMS" AND TUNING,
-
- o If you see error messages from the driver, and if the traffic
- stops on the adapter, try to do "ifconfig" and "route" once
- more, just as in "rc.inet1". This should take care of most
- problems, including effects from power loss, or adapters that
- aren't connected to the printer port in some way or another.
- You can somewhat change the behaviour by enabling/disabling
- the macro SHUTDOWN_WHEN_LOST in the "tuning" section.
- For the DE-600 there is another macro, CHECK_LOST_DE600,
- that you might want to read about in the "tuning" section.
-
- o Some machines have trouble handling the parallel port and
- the adapter at high speed. If you experience problems:
-
- DE-600:
- - The adapter is not recognized at boot, i.e. an Ethernet
- address of 00:80:c8:... is not shown, try to add another
- "; SLOW_DOWN_IO"
- at DE600_SLOW_DOWN in the "tuning" section. As a last resort,
- uncomment: "#define REALLY_SLOW_IO" (see <asm/io.h> for hints).
-
- - You experience "timeout" messages: first try to add another
- "; SLOW_DOWN_IO"
- at DE600_SLOW_DOWN in the "tuning" section, _then_ try to
- increase the value (original value: 5) at
- "if (tickssofar < 5)" near line 422.
-
- DE-620:
- - Your parallel port might be "sluggish". To cater for
- this, there are the macros LOWSPEED and READ_DELAY/WRITE_DELAY
- in the "tuning" section. Your first step should be to enable
- LOWSPEED, and after that you can "tune" the XXX_DELAY values.
-
- o If the adapter _is_ recognized at boot but you get messages
- about "Network Unreachable", then the problem is probably
- _not_ with the driver. Check your net configuration instead
- (ifconfig and route) in "rc.inet1".
-
- o There is some rudimentary support for debugging, look at
- the source. Use "-DDE600_DEBUG=3" or "-DDE620_DEBUG=3"
- when compiling, or include it in "linux/drivers/net/CONFIG".
- IF YOU HAVE PROBLEMS YOU CAN'T SOLVE: PLEASE COMPILE THE DRIVER
- WITH DEBUGGING ENABLED, AND SEND ME THE RESULTING OUTPUT!
-
-
- 6. USING THE DRIVERS WITH EARLIER RELEASES.
-
- The later 1.1.X releases of the Linux kernel include some
- changes in the networking layer (a.k.a. NET3). This affects
- these drivers in a few places. The hints that follow are
- _not_ tested by me, since I don't have the disk space to keep
- all releases on-line.
- Known needed changes to date:
- - release patchfile: some patches will fail, but they should
- be easy to apply "by hand", since they are trivial.
- (Space.c: d_link_init() is now called de600_probe())
- - de600.c: change "mark_bh(NET_BH)" to "mark_bh(INET_BH)".
- - de620.c: (maybe) change the code around "netif_rx(skb);" to be
- similar to the code around "dev_rint(...)" in de600.c
-
-
- 7. ACKNOWLEDGMENTS.
-
- These drivers wouldn't have been done without the base
- (and support) from Ross Biro, and D-Link Systems Inc.
- The driver relies upon GPL-ed source from D-Link Systems Inc.
- and from Russel Nelson at Crynwr Software <nelson@crynwr.com>.
-
- Additional input also from:
- Donald Becker <becker@super.org>, Alan Cox <A.Cox@swansea.ac.uk>
- and Fred N. van Kempen <waltje@uWalt.NL.Mugnet.ORG>
-
- DE-600 alpha release primary victim^H^H^H^H^H^Htester:
- - Erik Proper <erikp@cs.kun.nl>.
- Good input also from several users, most notably
- - Mark Burton <markb@ordern.demon.co.uk>.
-
- DE-620 alpha release victims^H^H^H^H^H^H^Htesters:
- - J. Joshua Kopper <kopper@rtsg.mot.com>
- - Olav Kvittem <Olav.Kvittem@uninett.no>
- - Germano Caronni <caronni@nessie.cs.id.ethz.ch>
- - Jeremy Fitzhardinge <jeremy@suite.sw.oz.au>
-
-
- Happy hacking!
-
- Bjorn Ekwall == bj0rn@blox.se
extern struct net_device *cops_probe(int unit);
extern struct net_device *ltpc_probe(void);
-/* Detachable devices ("pocket adaptors") */
-extern struct net_device *de620_probe(int unit);
-
/* Fibre Channel adapters */
extern int iph5526_probe(struct net_device *dev);
{NULL, 0},
};
-static struct devprobe2 parport_probes[] __initdata = {
-#ifdef CONFIG_DE620 /* D-Link DE-620 adapter */
- {de620_probe, 0},
-#endif
- {NULL, 0},
-};
-
static struct devprobe2 m68k_probes[] __initdata = {
#ifdef CONFIG_ATARILANCE /* Lance-based Atari ethernet boards */
{atarilance_probe, 0},
return;
(void)( probe_list2(unit, m68k_probes, base_addr == 0) &&
- probe_list2(unit, isa_probes, base_addr == 0) &&
- probe_list2(unit, parport_probes, base_addr == 0));
+ probe_list2(unit, isa_probes, base_addr == 0));
}
/* Statically configured drivers -- order matters here. */
config NET_VENDOR_DLINK
bool "D-Link devices"
default y
- depends on PCI || PARPORT
+ depends on PCI
---help---
If you have a network (Ethernet) card belonging to this class, say Y
and read the Ethernet-HOWTO, available from
if NET_VENDOR_DLINK
-config DE600
- tristate "D-Link DE600 pocket adapter support"
- depends on PARPORT
- ---help---
- This is a network (Ethernet) device which attaches to your parallel
- port. Read <file:Documentation/networking/DLINK.txt> as well as the
- Ethernet-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>, if you want to use
- this. It is possible to have several devices share a single parallel
- port and it is safe to compile the corresponding drivers into the
- kernel.
-
- To compile this driver as a module, choose M here: the module
- will be called de600.
-
-config DE620
- tristate "D-Link DE620 pocket adapter support"
- depends on PARPORT
- ---help---
- This is a network (Ethernet) device which attaches to your parallel
- port. Read <file:Documentation/networking/DLINK.txt> as well as the
- Ethernet-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>, if you want to use
- this. It is possible to have several devices share a single parallel
- port and it is safe to compile the corresponding drivers into the
- kernel.
-
- To compile this driver as a module, choose M here: the module
- will be called de620.
-
config DL2K
tristate "DL2000/TC902x-based Gigabit Ethernet support"
depends on PCI
# Makefile for the D-Link network device drivers.
#
-obj-$(CONFIG_DE600) += de600.o
-obj-$(CONFIG_DE620) += de620.o
obj-$(CONFIG_DL2K) += dl2k.o
obj-$(CONFIG_SUNDANCE) += sundance.o
+++ /dev/null
-static const char version[] = "de600.c: $Revision: 1.41-2.5 $, Bjorn Ekwall (bj0rn@blox.se)\n";
-/*
- * de600.c
- *
- * Linux driver for the D-Link DE-600 Ethernet pocket adapter.
- *
- * Portions (C) Copyright 1993, 1994 by Bjorn Ekwall
- * The Author may be reached as bj0rn@blox.se
- *
- * Based on adapter information gathered from DE600.ASM by D-Link Inc.,
- * as included on disk C in the v.2.11 of PC/TCP from FTP Software.
- * For DE600.asm:
- * Portions (C) Copyright 1990 D-Link, Inc.
- * Copyright, 1988-1992, Russell Nelson, Crynwr Software
- *
- * Adapted to the sample network driver core for linux,
- * written by: Donald Becker <becker@super.org>
- * (Now at <becker@scyld.com>)
- *
- **************************************************************/
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- **************************************************************/
-
-/* Add more time here if your adapter won't work OK: */
-#define DE600_SLOW_DOWN udelay(delay_time)
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/fcntl.h>
-#include <linux/string.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/in.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/inet.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-
-#include <asm/io.h>
-
-#include "de600.h"
-
-static bool check_lost = true;
-module_param(check_lost, bool, 0);
-MODULE_PARM_DESC(check_lost, "If set then check for unplugged de600");
-
-static unsigned int delay_time = 10;
-module_param(delay_time, int, 0);
-MODULE_PARM_DESC(delay_time, "DE-600 deley on I/O in microseconds");
-
-
-/*
- * D-Link driver variables:
- */
-
-static volatile int rx_page;
-
-#define TX_PAGES 2
-static volatile int tx_fifo[TX_PAGES];
-static volatile int tx_fifo_in;
-static volatile int tx_fifo_out;
-static volatile int free_tx_pages = TX_PAGES;
-static int was_down;
-static DEFINE_SPINLOCK(de600_lock);
-
-static inline u8 de600_read_status(struct net_device *dev)
-{
- u8 status;
-
- outb_p(STATUS, DATA_PORT);
- status = inb(STATUS_PORT);
- outb_p(NULL_COMMAND | HI_NIBBLE, DATA_PORT);
-
- return status;
-}
-
-static inline u8 de600_read_byte(unsigned char type, struct net_device *dev)
-{
- /* dev used by macros */
- u8 lo;
- outb_p((type), DATA_PORT);
- lo = ((unsigned char)inb(STATUS_PORT)) >> 4;
- outb_p((type) | HI_NIBBLE, DATA_PORT);
- return ((unsigned char)inb(STATUS_PORT) & (unsigned char)0xf0) | lo;
-}
-
-/*
- * Open/initialize the board. This is called (in the current kernel)
- * after booting when 'ifconfig <dev->name> $IP_ADDR' is run (in rc.inet1).
- *
- * This routine should set everything up anew at each open, even
- * registers that "should" only need to be set once at boot, so that
- * there is a non-reboot way to recover if something goes wrong.
- */
-
-static int de600_open(struct net_device *dev)
-{
- unsigned long flags;
- int ret = request_irq(DE600_IRQ, de600_interrupt, 0, dev->name, dev);
- if (ret) {
- printk(KERN_ERR "%s: unable to get IRQ %d\n", dev->name, DE600_IRQ);
- return ret;
- }
- spin_lock_irqsave(&de600_lock, flags);
- ret = adapter_init(dev);
- spin_unlock_irqrestore(&de600_lock, flags);
- return ret;
-}
-
-/*
- * The inverse routine to de600_open().
- */
-
-static int de600_close(struct net_device *dev)
-{
- select_nic();
- rx_page = 0;
- de600_put_command(RESET);
- de600_put_command(STOP_RESET);
- de600_put_command(0);
- select_prn();
- free_irq(DE600_IRQ, dev);
- return 0;
-}
-
-static inline void trigger_interrupt(struct net_device *dev)
-{
- de600_put_command(FLIP_IRQ);
- select_prn();
- DE600_SLOW_DOWN;
- select_nic();
- de600_put_command(0);
-}
-
-/*
- * Copy a buffer to the adapter transmit page memory.
- * Start sending.
- */
-
-static int de600_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- unsigned long flags;
- int transmit_from;
- int len;
- int tickssofar;
- u8 *buffer = skb->data;
- int i;
-
- if (free_tx_pages <= 0) { /* Do timeouts, to avoid hangs. */
- tickssofar = jiffies - dev_trans_start(dev);
- if (tickssofar < HZ/20)
- return NETDEV_TX_BUSY;
- /* else */
- printk(KERN_WARNING "%s: transmit timed out (%d), %s?\n", dev->name, tickssofar, "network cable problem");
- /* Restart the adapter. */
- spin_lock_irqsave(&de600_lock, flags);
- if (adapter_init(dev)) {
- spin_unlock_irqrestore(&de600_lock, flags);
- return NETDEV_TX_BUSY;
- }
- spin_unlock_irqrestore(&de600_lock, flags);
- }
-
- /* Start real output */
- pr_debug("de600_start_xmit:len=%d, page %d/%d\n", skb->len, tx_fifo_in, free_tx_pages);
-
- if ((len = skb->len) < RUNT)
- len = RUNT;
-
- spin_lock_irqsave(&de600_lock, flags);
- select_nic();
- tx_fifo[tx_fifo_in] = transmit_from = tx_page_adr(tx_fifo_in) - len;
- tx_fifo_in = (tx_fifo_in + 1) % TX_PAGES; /* Next free tx page */
-
- if(check_lost)
- {
- /* This costs about 40 instructions per packet... */
- de600_setup_address(NODE_ADDRESS, RW_ADDR);
- de600_read_byte(READ_DATA, dev);
- if (was_down || (de600_read_byte(READ_DATA, dev) != 0xde)) {
- if (adapter_init(dev)) {
- spin_unlock_irqrestore(&de600_lock, flags);
- return NETDEV_TX_BUSY;
- }
- }
- }
-
- de600_setup_address(transmit_from, RW_ADDR);
- for (i = 0; i < skb->len ; ++i, ++buffer)
- de600_put_byte(*buffer);
- for (; i < len; ++i)
- de600_put_byte(0);
-
- if (free_tx_pages-- == TX_PAGES) { /* No transmission going on */
- dev->trans_start = jiffies;
- netif_start_queue(dev); /* allow more packets into adapter */
- /* Send page and generate a faked interrupt */
- de600_setup_address(transmit_from, TX_ADDR);
- de600_put_command(TX_ENABLE);
- }
- else {
- if (free_tx_pages)
- netif_start_queue(dev);
- else
- netif_stop_queue(dev);
- select_prn();
- }
- spin_unlock_irqrestore(&de600_lock, flags);
- dev_kfree_skb(skb);
- return NETDEV_TX_OK;
-}
-
-/*
- * The typical workload of the driver:
- * Handle the network interface interrupts.
- */
-
-static irqreturn_t de600_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- u8 irq_status;
- int retrig = 0;
- int boguscount = 0;
-
- spin_lock(&de600_lock);
-
- select_nic();
- irq_status = de600_read_status(dev);
-
- do {
- pr_debug("de600_interrupt (%02X)\n", irq_status);
-
- if (irq_status & RX_GOOD)
- de600_rx_intr(dev);
- else if (!(irq_status & RX_BUSY))
- de600_put_command(RX_ENABLE);
-
- /* Any transmission in progress? */
- if (free_tx_pages < TX_PAGES)
- retrig = de600_tx_intr(dev, irq_status);
- else
- retrig = 0;
-
- irq_status = de600_read_status(dev);
- } while ( (irq_status & RX_GOOD) || ((++boguscount < 100) && retrig) );
- /*
- * Yeah, it _looks_ like busy waiting, smells like busy waiting
- * and I know it's not PC, but please, it will only occur once
- * in a while and then only for a loop or so (< 1ms for sure!)
- */
-
- /* Enable adapter interrupts */
- select_prn();
- if (retrig)
- trigger_interrupt(dev);
- spin_unlock(&de600_lock);
- return IRQ_HANDLED;
-}
-
-static int de600_tx_intr(struct net_device *dev, int irq_status)
-{
- /*
- * Returns 1 if tx still not done
- */
-
- /* Check if current transmission is done yet */
- if (irq_status & TX_BUSY)
- return 1; /* tx not done, try again */
-
- /* else */
- /* If last transmission OK then bump fifo index */
- if (!(irq_status & TX_FAILED16)) {
- tx_fifo_out = (tx_fifo_out + 1) % TX_PAGES;
- ++free_tx_pages;
- dev->stats.tx_packets++;
- netif_wake_queue(dev);
- }
-
- /* More to send, or resend last packet? */
- if ((free_tx_pages < TX_PAGES) || (irq_status & TX_FAILED16)) {
- dev->trans_start = jiffies;
- de600_setup_address(tx_fifo[tx_fifo_out], TX_ADDR);
- de600_put_command(TX_ENABLE);
- return 1;
- }
- /* else */
-
- return 0;
-}
-
-/*
- * We have a good packet, get it out of the adapter.
- */
-static void de600_rx_intr(struct net_device *dev)
-{
- struct sk_buff *skb;
- int i;
- int read_from;
- int size;
- unsigned char *buffer;
-
- /* Get size of received packet */
- size = de600_read_byte(RX_LEN, dev); /* low byte */
- size += (de600_read_byte(RX_LEN, dev) << 8); /* high byte */
- size -= 4; /* Ignore trailing 4 CRC-bytes */
-
- /* Tell adapter where to store next incoming packet, enable receiver */
- read_from = rx_page_adr();
- next_rx_page();
- de600_put_command(RX_ENABLE);
-
- if ((size < 32) || (size > 1535)) {
- printk(KERN_WARNING "%s: Bogus packet size %d.\n", dev->name, size);
- if (size > 10000)
- adapter_init(dev);
- return;
- }
-
- skb = netdev_alloc_skb(dev, size + 2);
- if (skb == NULL) {
- printk("%s: Couldn't allocate a sk_buff of size %d.\n", dev->name, size);
- return;
- }
- /* else */
-
- skb_reserve(skb,2); /* Align */
-
- /* 'skb->data' points to the start of sk_buff data area. */
- buffer = skb_put(skb,size);
-
- /* copy the packet into the buffer */
- de600_setup_address(read_from, RW_ADDR);
- for (i = size; i > 0; --i, ++buffer)
- *buffer = de600_read_byte(READ_DATA, dev);
-
- skb->protocol=eth_type_trans(skb,dev);
-
- netif_rx(skb);
-
- /* update stats */
- dev->stats.rx_packets++; /* count all receives */
- dev->stats.rx_bytes += size; /* count all received bytes */
-
- /*
- * If any worth-while packets have been received, netif_rx()
- * will work on them when we get to the tasklets.
- */
-}
-
-static const struct net_device_ops de600_netdev_ops = {
- .ndo_open = de600_open,
- .ndo_stop = de600_close,
- .ndo_start_xmit = de600_start_xmit,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-
-static struct net_device * __init de600_probe(void)
-{
- int i;
- struct net_device *dev;
- int err;
-
- dev = alloc_etherdev(0);
- if (!dev)
- return ERR_PTR(-ENOMEM);
-
-
- if (!request_region(DE600_IO, 3, "de600")) {
- printk(KERN_WARNING "DE600: port 0x%x busy\n", DE600_IO);
- err = -EBUSY;
- goto out;
- }
-
- printk(KERN_INFO "%s: D-Link DE-600 pocket adapter", dev->name);
- /* Alpha testers must have the version number to report bugs. */
- pr_debug("%s", version);
-
- /* probe for adapter */
- err = -ENODEV;
- rx_page = 0;
- select_nic();
- (void)de600_read_status(dev);
- de600_put_command(RESET);
- de600_put_command(STOP_RESET);
- if (de600_read_status(dev) & 0xf0) {
- printk(": not at I/O %#3x.\n", DATA_PORT);
- goto out1;
- }
-
- /*
- * Maybe we found one,
- * have to check if it is a D-Link DE-600 adapter...
- */
-
- /* Get the adapter ethernet address from the ROM */
- de600_setup_address(NODE_ADDRESS, RW_ADDR);
- for (i = 0; i < ETH_ALEN; i++) {
- dev->dev_addr[i] = de600_read_byte(READ_DATA, dev);
- dev->broadcast[i] = 0xff;
- }
-
- /* Check magic code */
- if ((dev->dev_addr[1] == 0xde) && (dev->dev_addr[2] == 0x15)) {
- /* OK, install real address */
- dev->dev_addr[0] = 0x00;
- dev->dev_addr[1] = 0x80;
- dev->dev_addr[2] = 0xc8;
- dev->dev_addr[3] &= 0x0f;
- dev->dev_addr[3] |= 0x70;
- } else {
- printk(" not identified in the printer port\n");
- goto out1;
- }
-
- printk(", Ethernet Address: %pM\n", dev->dev_addr);
-
- dev->netdev_ops = &de600_netdev_ops;
-
- dev->flags&=~IFF_MULTICAST;
-
- select_prn();
-
- err = register_netdev(dev);
- if (err)
- goto out1;
-
- return dev;
-
-out1:
- release_region(DE600_IO, 3);
-out:
- free_netdev(dev);
- return ERR_PTR(err);
-}
-
-static int adapter_init(struct net_device *dev)
-{
- int i;
-
- select_nic();
- rx_page = 0; /* used by RESET */
- de600_put_command(RESET);
- de600_put_command(STOP_RESET);
-
- /* Check if it is still there... */
- /* Get the some bytes of the adapter ethernet address from the ROM */
- de600_setup_address(NODE_ADDRESS, RW_ADDR);
- de600_read_byte(READ_DATA, dev);
- if ((de600_read_byte(READ_DATA, dev) != 0xde) ||
- (de600_read_byte(READ_DATA, dev) != 0x15)) {
- /* was: if (de600_read_status(dev) & 0xf0) { */
- printk("Something has happened to the DE-600! Please check it and do a new ifconfig!\n");
- /* Goodbye, cruel world... */
- dev->flags &= ~IFF_UP;
- de600_close(dev);
- was_down = 1;
- netif_stop_queue(dev); /* Transmit busy... */
- return 1; /* failed */
- }
-
- if (was_down) {
- printk(KERN_INFO "%s: Thanks, I feel much better now!\n", dev->name);
- was_down = 0;
- }
-
- tx_fifo_in = 0;
- tx_fifo_out = 0;
- free_tx_pages = TX_PAGES;
-
-
- /* set the ether address. */
- de600_setup_address(NODE_ADDRESS, RW_ADDR);
- for (i = 0; i < ETH_ALEN; i++)
- de600_put_byte(dev->dev_addr[i]);
-
- /* where to start saving incoming packets */
- rx_page = RX_BP | RX_BASE_PAGE;
- de600_setup_address(MEM_4K, RW_ADDR);
- /* Enable receiver */
- de600_put_command(RX_ENABLE);
- select_prn();
-
- netif_start_queue(dev);
-
- return 0; /* OK */
-}
-
-static struct net_device *de600_dev;
-
-static int __init de600_init(void)
-{
- de600_dev = de600_probe();
- if (IS_ERR(de600_dev))
- return PTR_ERR(de600_dev);
- return 0;
-}
-
-static void __exit de600_exit(void)
-{
- unregister_netdev(de600_dev);
- release_region(DE600_IO, 3);
- free_netdev(de600_dev);
-}
-
-module_init(de600_init);
-module_exit(de600_exit);
-
-MODULE_LICENSE("GPL");
+++ /dev/null
-/**************************************************
- * *
- * Definition of D-Link Ethernet Pocket adapter *
- * *
- **************************************************/
-/*
- * D-Link Ethernet pocket adapter ports
- */
-/*
- * OK, so I'm cheating, but there are an awful lot of
- * reads and writes in order to get anything in and out
- * of the DE-600 with 4 bits at a time in the parallel port,
- * so every saved instruction really helps :-)
- */
-
-#ifndef DE600_IO
-#define DE600_IO 0x378
-#endif
-
-#define DATA_PORT (DE600_IO)
-#define STATUS_PORT (DE600_IO + 1)
-#define COMMAND_PORT (DE600_IO + 2)
-
-#ifndef DE600_IRQ
-#define DE600_IRQ 7
-#endif
-/*
- * It really should look like this, and autoprobing as well...
- *
-#define DATA_PORT (dev->base_addr + 0)
-#define STATUS_PORT (dev->base_addr + 1)
-#define COMMAND_PORT (dev->base_addr + 2)
-#define DE600_IRQ dev->irq
- */
-
-/*
- * D-Link COMMAND_PORT commands
- */
-#define SELECT_NIC 0x04 /* select Network Interface Card */
-#define SELECT_PRN 0x1c /* select Printer */
-#define NML_PRN 0xec /* normal Printer situation */
-#define IRQEN 0x10 /* enable IRQ line */
-
-/*
- * D-Link STATUS_PORT
- */
-#define RX_BUSY 0x80
-#define RX_GOOD 0x40
-#define TX_FAILED16 0x10
-#define TX_BUSY 0x08
-
-/*
- * D-Link DATA_PORT commands
- * command in low 4 bits
- * data in high 4 bits
- * select current data nibble with HI_NIBBLE bit
- */
-#define WRITE_DATA 0x00 /* write memory */
-#define READ_DATA 0x01 /* read memory */
-#define STATUS 0x02 /* read status register */
-#define COMMAND 0x03 /* write command register (see COMMAND below) */
-#define NULL_COMMAND 0x04 /* null command */
-#define RX_LEN 0x05 /* read received packet length */
-#define TX_ADDR 0x06 /* set adapter transmit memory address */
-#define RW_ADDR 0x07 /* set adapter read/write memory address */
-#define HI_NIBBLE 0x08 /* read/write the high nibble of data,
- or-ed with rest of command */
-
-/*
- * command register, accessed through DATA_PORT with low bits = COMMAND
- */
-#define RX_ALL 0x01 /* PROMISCUOUS */
-#define RX_BP 0x02 /* default: BROADCAST & PHYSICAL ADDRESS */
-#define RX_MBP 0x03 /* MULTICAST, BROADCAST & PHYSICAL ADDRESS */
-
-#define TX_ENABLE 0x04 /* bit 2 */
-#define RX_ENABLE 0x08 /* bit 3 */
-
-#define RESET 0x80 /* set bit 7 high */
-#define STOP_RESET 0x00 /* set bit 7 low */
-
-/*
- * data to command register
- * (high 4 bits in write to DATA_PORT)
- */
-#define RX_PAGE2_SELECT 0x10 /* bit 4, only 2 pages to select */
-#define RX_BASE_PAGE 0x20 /* bit 5, always set when specifying RX_ADDR */
-#define FLIP_IRQ 0x40 /* bit 6 */
-
-/*
- * D-Link adapter internal memory:
- *
- * 0-2K 1:st transmit page (send from pointer up to 2K)
- * 2-4K 2:nd transmit page (send from pointer up to 4K)
- *
- * 4-6K 1:st receive page (data from 4K upwards)
- * 6-8K 2:nd receive page (data from 6K upwards)
- *
- * 8K+ Adapter ROM (contains magic code and last 3 bytes of Ethernet address)
- */
-#define MEM_2K 0x0800 /* 2048 */
-#define MEM_4K 0x1000 /* 4096 */
-#define MEM_6K 0x1800 /* 6144 */
-#define NODE_ADDRESS 0x2000 /* 8192 */
-
-#define RUNT 60 /* Too small Ethernet packet */
-
-/**************************************************
- * *
- * End of definition *
- * *
- **************************************************/
-
-/*
- * Index to functions, as function prototypes.
- */
-/* Routines used internally. (See "convenience macros") */
-static u8 de600_read_status(struct net_device *dev);
-static u8 de600_read_byte(unsigned char type, struct net_device *dev);
-
-/* Put in the device structure. */
-static int de600_open(struct net_device *dev);
-static int de600_close(struct net_device *dev);
-static int de600_start_xmit(struct sk_buff *skb, struct net_device *dev);
-
-/* Dispatch from interrupts. */
-static irqreturn_t de600_interrupt(int irq, void *dev_id);
-static int de600_tx_intr(struct net_device *dev, int irq_status);
-static void de600_rx_intr(struct net_device *dev);
-
-/* Initialization */
-static void trigger_interrupt(struct net_device *dev);
-static int adapter_init(struct net_device *dev);
-
-/*
- * Convenience macros/functions for D-Link adapter
- */
-
-#define select_prn() outb_p(SELECT_PRN, COMMAND_PORT); DE600_SLOW_DOWN
-#define select_nic() outb_p(SELECT_NIC, COMMAND_PORT); DE600_SLOW_DOWN
-
-/* Thanks for hints from Mark Burton <markb@ordern.demon.co.uk> */
-#define de600_put_byte(data) ( \
- outb_p(((data) << 4) | WRITE_DATA , DATA_PORT), \
- outb_p(((data) & 0xf0) | WRITE_DATA | HI_NIBBLE, DATA_PORT))
-
-/*
- * The first two outb_p()'s below could perhaps be deleted if there
- * would be more delay in the last two. Not certain about it yet...
- */
-#define de600_put_command(cmd) ( \
- outb_p(( rx_page << 4) | COMMAND , DATA_PORT), \
- outb_p(( rx_page & 0xf0) | COMMAND | HI_NIBBLE, DATA_PORT), \
- outb_p(((rx_page | cmd) << 4) | COMMAND , DATA_PORT), \
- outb_p(((rx_page | cmd) & 0xf0) | COMMAND | HI_NIBBLE, DATA_PORT))
-
-#define de600_setup_address(addr,type) ( \
- outb_p((((addr) << 4) & 0xf0) | type , DATA_PORT), \
- outb_p(( (addr) & 0xf0) | type | HI_NIBBLE, DATA_PORT), \
- outb_p((((addr) >> 4) & 0xf0) | type , DATA_PORT), \
- outb_p((((addr) >> 8) & 0xf0) | type | HI_NIBBLE, DATA_PORT))
-
-#define rx_page_adr() ((rx_page & RX_PAGE2_SELECT)?(MEM_6K):(MEM_4K))
-
-/* Flip bit, only 2 pages */
-#define next_rx_page() (rx_page ^= RX_PAGE2_SELECT)
-
-#define tx_page_adr(a) (((a) + 1) * MEM_2K)
+++ /dev/null
-/*
- * de620.c $Revision: 1.40 $ BETA
- *
- *
- * Linux driver for the D-Link DE-620 Ethernet pocket adapter.
- *
- * Portions (C) Copyright 1993, 1994 by Bjorn Ekwall <bj0rn@blox.se>
- *
- * Based on adapter information gathered from DOS packetdriver
- * sources from D-Link Inc: (Special thanks to Henry Ngai of D-Link.)
- * Portions (C) Copyright D-Link SYSTEM Inc. 1991, 1992
- * Copyright, 1988, Russell Nelson, Crynwr Software
- *
- * Adapted to the sample network driver core for linux,
- * written by: Donald Becker <becker@super.org>
- * (Now at <becker@scyld.com>)
- *
- * Valuable assistance from:
- * J. Joshua Kopper <kopper@rtsg.mot.com>
- * Olav Kvittem <Olav.Kvittem@uninett.no>
- * Germano Caronni <caronni@nessie.cs.id.ethz.ch>
- * Jeremy Fitzhardinge <jeremy@suite.sw.oz.au>
- *
- *****************************************************************************/
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *****************************************************************************/
-static const char version[] =
- "de620.c: $Revision: 1.40 $, Bjorn Ekwall <bj0rn@blox.se>\n";
-
-/***********************************************************************
- *
- * "Tuning" section.
- *
- * Compile-time options: (see below for descriptions)
- * -DDE620_IO=0x378 (lpt1)
- * -DDE620_IRQ=7 (lpt1)
- * -DSHUTDOWN_WHEN_LOST
- * -DCOUNT_LOOPS
- * -DLOWSPEED
- * -DREAD_DELAY
- * -DWRITE_DELAY
- */
-
-/*
- * This driver assumes that the printer port is a "normal",
- * dumb, uni-directional port!
- * If your port is "fancy" in any way, please try to set it to "normal"
- * with your BIOS setup. I have no access to machines with bi-directional
- * ports, so I can't test such a driver :-(
- * (Yes, I _know_ it is possible to use DE620 with bidirectional ports...)
- *
- * There are some clones of DE620 out there, with different names.
- * If the current driver does not recognize a clone, try to change
- * the following #define to:
- *
- * #define DE620_CLONE 1
- */
-#define DE620_CLONE 0
-
-/*
- * If the adapter has problems with high speeds, enable this #define
- * otherwise full printerport speed will be attempted.
- *
- * You can tune the READ_DELAY/WRITE_DELAY below if you enable LOWSPEED
- *
-#define LOWSPEED
- */
-
-#ifndef READ_DELAY
-#define READ_DELAY 100 /* adapter internal read delay in 100ns units */
-#endif
-
-#ifndef WRITE_DELAY
-#define WRITE_DELAY 100 /* adapter internal write delay in 100ns units */
-#endif
-
-/*
- * Enable this #define if you want the adapter to do a "ifconfig down" on
- * itself when we have detected that something is possibly wrong with it.
- * The default behaviour is to retry with "adapter_init()" until success.
- * This should be used for debugging purposes only.
- *
-#define SHUTDOWN_WHEN_LOST
- */
-
-#ifdef LOWSPEED
-/*
- * Enable this #define if you want to see debugging output that show how long
- * we have to wait before the DE-620 is ready for the next read/write/command.
- *
-#define COUNT_LOOPS
- */
-#endif
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/fcntl.h>
-#include <linux/string.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/in.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/inet.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-
-#include <asm/io.h>
-
-/* Constant definitions for the DE-620 registers, commands and bits */
-#include "de620.h"
-
-typedef unsigned char byte;
-
-/*******************************************************
- * *
- * Definition of D-Link DE-620 Ethernet Pocket adapter *
- * See also "de620.h" *
- * *
- *******************************************************/
-#ifndef DE620_IO /* Compile-time configurable */
-#define DE620_IO 0x378
-#endif
-
-#ifndef DE620_IRQ /* Compile-time configurable */
-#define DE620_IRQ 7
-#endif
-
-#define DATA_PORT (dev->base_addr)
-#define STATUS_PORT (dev->base_addr + 1)
-#define COMMAND_PORT (dev->base_addr + 2)
-
-#define RUNT 60 /* Too small Ethernet packet */
-#define GIANT 1514 /* largest legal size packet, no fcs */
-
-/*
- * Force media with insmod:
- * insmod de620.o bnc=1
- * or
- * insmod de620.o utp=1
- *
- * Force io and/or irq with insmod:
- * insmod de620.o io=0x378 irq=7
- *
- * Make a clone skip the Ethernet-address range check:
- * insmod de620.o clone=1
- */
-static int bnc;
-static int utp;
-static int io = DE620_IO;
-static int irq = DE620_IRQ;
-static int clone = DE620_CLONE;
-
-static spinlock_t de620_lock;
-
-module_param(bnc, int, 0);
-module_param(utp, int, 0);
-module_param(io, int, 0);
-module_param(irq, int, 0);
-module_param(clone, int, 0);
-MODULE_PARM_DESC(bnc, "DE-620 set BNC medium (0-1)");
-MODULE_PARM_DESC(utp, "DE-620 set UTP medium (0-1)");
-MODULE_PARM_DESC(io, "DE-620 I/O base address,required");
-MODULE_PARM_DESC(irq, "DE-620 IRQ number,required");
-MODULE_PARM_DESC(clone, "Check also for non-D-Link DE-620 clones (0-1)");
-
-/***********************************************
- * *
- * Index to functions, as function prototypes. *
- * *
- ***********************************************/
-
-/*
- * Routines used internally. (See also "convenience macros.. below")
- */
-
-/* Put in the device structure. */
-static int de620_open(struct net_device *);
-static int de620_close(struct net_device *);
-static void de620_set_multicast_list(struct net_device *);
-static int de620_start_xmit(struct sk_buff *, struct net_device *);
-
-/* Dispatch from interrupts. */
-static irqreturn_t de620_interrupt(int, void *);
-static int de620_rx_intr(struct net_device *);
-
-/* Initialization */
-static int adapter_init(struct net_device *);
-static int read_eeprom(struct net_device *);
-
-
-/*
- * D-Link driver variables:
- */
-#define SCR_DEF NIBBLEMODE |INTON | SLEEP | AUTOTX
-#define TCR_DEF RXPB /* not used: | TXSUCINT | T16INT */
-#define DE620_RX_START_PAGE 12 /* 12 pages (=3k) reserved for tx */
-#define DEF_NIC_CMD IRQEN | ICEN | DS1
-
-static volatile byte NIC_Cmd;
-static volatile byte next_rx_page;
-static byte first_rx_page;
-static byte last_rx_page;
-static byte EIPRegister;
-
-static struct nic {
- byte NodeID[6];
- byte RAM_Size;
- byte Model;
- byte Media;
- byte SCR;
-} nic_data;
-
-/**********************************************************
- * *
- * Convenience macros/functions for D-Link DE-620 adapter *
- * *
- **********************************************************/
-#define de620_tx_buffs(dd) (inb(STATUS_PORT) & (TXBF0 | TXBF1))
-#define de620_flip_ds(dd) NIC_Cmd ^= DS0 | DS1; outb(NIC_Cmd, COMMAND_PORT);
-
-/* Check for ready-status, and return a nibble (high 4 bits) for data input */
-#ifdef COUNT_LOOPS
-static int tot_cnt;
-#endif
-static inline byte
-de620_ready(struct net_device *dev)
-{
- byte value;
- register short int cnt = 0;
-
- while ((((value = inb(STATUS_PORT)) & READY) == 0) && (cnt <= 1000))
- ++cnt;
-
-#ifdef COUNT_LOOPS
- tot_cnt += cnt;
-#endif
- return value & 0xf0; /* nibble */
-}
-
-static inline void
-de620_send_command(struct net_device *dev, byte cmd)
-{
- de620_ready(dev);
- if (cmd == W_DUMMY)
- outb(NIC_Cmd, COMMAND_PORT);
-
- outb(cmd, DATA_PORT);
-
- outb(NIC_Cmd ^ CS0, COMMAND_PORT);
- de620_ready(dev);
- outb(NIC_Cmd, COMMAND_PORT);
-}
-
-static inline void
-de620_put_byte(struct net_device *dev, byte value)
-{
- /* The de620_ready() makes 7 loops, on the average, on a DX2/66 */
- de620_ready(dev);
- outb(value, DATA_PORT);
- de620_flip_ds(dev);
-}
-
-static inline byte
-de620_read_byte(struct net_device *dev)
-{
- byte value;
-
- /* The de620_ready() makes 7 loops, on the average, on a DX2/66 */
- value = de620_ready(dev); /* High nibble */
- de620_flip_ds(dev);
- value |= de620_ready(dev) >> 4; /* Low nibble */
- return value;
-}
-
-static inline void
-de620_write_block(struct net_device *dev, byte *buffer, int count, int pad)
-{
-#ifndef LOWSPEED
- byte uflip = NIC_Cmd ^ (DS0 | DS1);
- byte dflip = NIC_Cmd;
-#else /* LOWSPEED */
-#ifdef COUNT_LOOPS
- int bytes = count;
-#endif /* COUNT_LOOPS */
-#endif /* LOWSPEED */
-
-#ifdef LOWSPEED
-#ifdef COUNT_LOOPS
- tot_cnt = 0;
-#endif /* COUNT_LOOPS */
- /* No further optimization useful, the limit is in the adapter. */
- for ( ; count > 0; --count, ++buffer) {
- de620_put_byte(dev,*buffer);
- }
- for ( count = pad ; count > 0; --count, ++buffer) {
- de620_put_byte(dev, 0);
- }
- de620_send_command(dev,W_DUMMY);
-#ifdef COUNT_LOOPS
- /* trial debug output: loops per byte in de620_ready() */
- printk("WRITE(%d)\n", tot_cnt/((bytes?bytes:1)));
-#endif /* COUNT_LOOPS */
-#else /* not LOWSPEED */
- for ( ; count > 0; count -=2) {
- outb(*buffer++, DATA_PORT);
- outb(uflip, COMMAND_PORT);
- outb(*buffer++, DATA_PORT);
- outb(dflip, COMMAND_PORT);
- }
- de620_send_command(dev,W_DUMMY);
-#endif /* LOWSPEED */
-}
-
-static inline void
-de620_read_block(struct net_device *dev, byte *data, int count)
-{
-#ifndef LOWSPEED
- byte value;
- byte uflip = NIC_Cmd ^ (DS0 | DS1);
- byte dflip = NIC_Cmd;
-#else /* LOWSPEED */
-#ifdef COUNT_LOOPS
- int bytes = count;
-
- tot_cnt = 0;
-#endif /* COUNT_LOOPS */
-#endif /* LOWSPEED */
-
-#ifdef LOWSPEED
- /* No further optimization useful, the limit is in the adapter. */
- while (count-- > 0) {
- *data++ = de620_read_byte(dev);
- de620_flip_ds(dev);
- }
-#ifdef COUNT_LOOPS
- /* trial debug output: loops per byte in de620_ready() */
- printk("READ(%d)\n", tot_cnt/(2*(bytes?bytes:1)));
-#endif /* COUNT_LOOPS */
-#else /* not LOWSPEED */
- while (count-- > 0) {
- value = inb(STATUS_PORT) & 0xf0; /* High nibble */
- outb(uflip, COMMAND_PORT);
- *data++ = value | inb(STATUS_PORT) >> 4; /* Low nibble */
- outb(dflip , COMMAND_PORT);
- }
-#endif /* LOWSPEED */
-}
-
-static inline void
-de620_set_delay(struct net_device *dev)
-{
- de620_ready(dev);
- outb(W_DFR, DATA_PORT);
- outb(NIC_Cmd ^ CS0, COMMAND_PORT);
-
- de620_ready(dev);
-#ifdef LOWSPEED
- outb(WRITE_DELAY, DATA_PORT);
-#else
- outb(0, DATA_PORT);
-#endif
- de620_flip_ds(dev);
-
- de620_ready(dev);
-#ifdef LOWSPEED
- outb(READ_DELAY, DATA_PORT);
-#else
- outb(0, DATA_PORT);
-#endif
- de620_flip_ds(dev);
-}
-
-static inline void
-de620_set_register(struct net_device *dev, byte reg, byte value)
-{
- de620_ready(dev);
- outb(reg, DATA_PORT);
- outb(NIC_Cmd ^ CS0, COMMAND_PORT);
-
- de620_put_byte(dev, value);
-}
-
-static inline byte
-de620_get_register(struct net_device *dev, byte reg)
-{
- byte value;
-
- de620_send_command(dev,reg);
- value = de620_read_byte(dev);
- de620_send_command(dev,W_DUMMY);
-
- return value;
-}
-
-/*********************************************************************
- *
- * Open/initialize the board.
- *
- * This routine should set everything up anew at each open, even
- * registers that "should" only need to be set once at boot, so that
- * there is a non-reboot way to recover if something goes wrong.
- *
- */
-static int de620_open(struct net_device *dev)
-{
- int ret = request_irq(dev->irq, de620_interrupt, 0, dev->name, dev);
- if (ret) {
- printk (KERN_ERR "%s: unable to get IRQ %d\n", dev->name, dev->irq);
- return ret;
- }
-
- if (adapter_init(dev)) {
- ret = -EIO;
- goto out_free_irq;
- }
-
- netif_start_queue(dev);
- return 0;
-
-out_free_irq:
- free_irq(dev->irq, dev);
- return ret;
-}
-
-/************************************************
- *
- * The inverse routine to de620_open().
- *
- */
-
-static int de620_close(struct net_device *dev)
-{
- netif_stop_queue(dev);
- /* disable recv */
- de620_set_register(dev, W_TCR, RXOFF);
- free_irq(dev->irq, dev);
- return 0;
-}
-
-/*********************************************
- *
- * Set or clear the multicast filter for this adaptor.
- * (no real multicast implemented for the DE-620, but she can be promiscuous...)
- *
- */
-
-static void de620_set_multicast_list(struct net_device *dev)
-{
- if (!netdev_mc_empty(dev) || dev->flags&(IFF_ALLMULTI|IFF_PROMISC))
- { /* Enable promiscuous mode */
- de620_set_register(dev, W_TCR, (TCR_DEF & ~RXPBM) | RXALL);
- }
- else
- { /* Disable promiscuous mode, use normal mode */
- de620_set_register(dev, W_TCR, TCR_DEF);
- }
-}
-
-/*******************************************************
- *
- * Handle timeouts on transmit
- */
-
-static void de620_timeout(struct net_device *dev)
-{
- printk(KERN_WARNING "%s: transmit timed out, %s?\n", dev->name, "network cable problem");
- /* Restart the adapter. */
- if (!adapter_init(dev)) /* maybe close it */
- netif_wake_queue(dev);
-}
-
-/*******************************************************
- *
- * Copy a buffer to the adapter transmit page memory.
- * Start sending.
- */
-static int de620_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- unsigned long flags;
- int len;
- byte *buffer = skb->data;
- byte using_txbuf;
-
- using_txbuf = de620_tx_buffs(dev); /* Peek at the adapter */
-
- netif_stop_queue(dev);
-
-
- if ((len = skb->len) < RUNT)
- len = RUNT;
- if (len & 1) /* send an even number of bytes */
- ++len;
-
- /* Start real output */
-
- spin_lock_irqsave(&de620_lock, flags);
- pr_debug("de620_start_xmit: len=%d, bufs 0x%02x\n",
- (int)skb->len, using_txbuf);
-
- /* select a free tx buffer. if there is one... */
- switch (using_txbuf) {
- default: /* both are free: use TXBF0 */
- case TXBF1: /* use TXBF0 */
- de620_send_command(dev,W_CR | RW0);
- using_txbuf |= TXBF0;
- break;
-
- case TXBF0: /* use TXBF1 */
- de620_send_command(dev,W_CR | RW1);
- using_txbuf |= TXBF1;
- break;
-
- case (TXBF0 | TXBF1): /* NONE!!! */
- printk(KERN_WARNING "%s: No tx-buffer available!\n", dev->name);
- spin_unlock_irqrestore(&de620_lock, flags);
- return NETDEV_TX_BUSY;
- }
- de620_write_block(dev, buffer, skb->len, len-skb->len);
-
- if(!(using_txbuf == (TXBF0 | TXBF1)))
- netif_wake_queue(dev);
-
- dev->stats.tx_packets++;
- spin_unlock_irqrestore(&de620_lock, flags);
- dev_kfree_skb (skb);
- return NETDEV_TX_OK;
-}
-
-/*****************************************************
- *
- * Handle the network interface interrupts.
- *
- */
-static irqreturn_t
-de620_interrupt(int irq_in, void *dev_id)
-{
- struct net_device *dev = dev_id;
- byte irq_status;
- int bogus_count = 0;
- int again = 0;
-
- spin_lock(&de620_lock);
-
- /* Read the status register (_not_ the status port) */
- irq_status = de620_get_register(dev, R_STS);
-
- pr_debug("de620_interrupt (%2.2X)\n", irq_status);
-
- if (irq_status & RXGOOD) {
- do {
- again = de620_rx_intr(dev);
- pr_debug("again=%d\n", again);
- }
- while (again && (++bogus_count < 100));
- }
-
- if(de620_tx_buffs(dev) != (TXBF0 | TXBF1))
- netif_wake_queue(dev);
-
- spin_unlock(&de620_lock);
- return IRQ_HANDLED;
-}
-
-/**************************************
- *
- * Get a packet from the adapter
- *
- * Send it "upstairs"
- *
- */
-static int de620_rx_intr(struct net_device *dev)
-{
- struct header_buf {
- byte status;
- byte Rx_NextPage;
- unsigned short Rx_ByteCount;
- } header_buf;
- struct sk_buff *skb;
- int size;
- byte *buffer;
- byte pagelink;
- byte curr_page;
-
- pr_debug("de620_rx_intr: next_rx_page = %d\n", next_rx_page);
-
- /* Tell the adapter that we are going to read data, and from where */
- de620_send_command(dev, W_CR | RRN);
- de620_set_register(dev, W_RSA1, next_rx_page);
- de620_set_register(dev, W_RSA0, 0);
-
- /* Deep breath, and away we goooooo */
- de620_read_block(dev, (byte *)&header_buf, sizeof(struct header_buf));
- pr_debug("page status=0x%02x, nextpage=%d, packetsize=%d\n",
- header_buf.status, header_buf.Rx_NextPage,
- header_buf.Rx_ByteCount);
-
- /* Plausible page header? */
- pagelink = header_buf.Rx_NextPage;
- if ((pagelink < first_rx_page) || (last_rx_page < pagelink)) {
- /* Ouch... Forget it! Skip all and start afresh... */
- printk(KERN_WARNING "%s: Ring overrun? Restoring...\n", dev->name);
- /* You win some, you lose some. And sometimes plenty... */
- adapter_init(dev);
- netif_wake_queue(dev);
- dev->stats.rx_over_errors++;
- return 0;
- }
-
- /* OK, this look good, so far. Let's see if it's consistent... */
- /* Let's compute the start of the next packet, based on where we are */
- pagelink = next_rx_page +
- ((header_buf.Rx_ByteCount + (4 - 1 + 0x100)) >> 8);
-
- /* Are we going to wrap around the page counter? */
- if (pagelink > last_rx_page)
- pagelink -= (last_rx_page - first_rx_page + 1);
-
- /* Is the _computed_ next page number equal to what the adapter says? */
- if (pagelink != header_buf.Rx_NextPage) {
- /* Naah, we'll skip this packet. Probably bogus data as well */
- printk(KERN_WARNING "%s: Page link out of sync! Restoring...\n", dev->name);
- next_rx_page = header_buf.Rx_NextPage; /* at least a try... */
- de620_send_command(dev, W_DUMMY);
- de620_set_register(dev, W_NPRF, next_rx_page);
- dev->stats.rx_over_errors++;
- return 0;
- }
- next_rx_page = pagelink;
-
- size = header_buf.Rx_ByteCount - 4;
- if ((size < RUNT) || (GIANT < size)) {
- printk(KERN_WARNING "%s: Illegal packet size: %d!\n", dev->name, size);
- }
- else { /* Good packet? */
- skb = netdev_alloc_skb(dev, size + 2);
- if (skb == NULL) { /* Yeah, but no place to put it... */
- printk(KERN_WARNING "%s: Couldn't allocate a sk_buff of size %d.\n", dev->name, size);
- dev->stats.rx_dropped++;
- }
- else { /* Yep! Go get it! */
- skb_reserve(skb,2); /* Align */
- /* skb->data points to the start of sk_buff data area */
- buffer = skb_put(skb,size);
- /* copy the packet into the buffer */
- de620_read_block(dev, buffer, size);
- pr_debug("Read %d bytes\n", size);
- skb->protocol=eth_type_trans(skb,dev);
- netif_rx(skb); /* deliver it "upstairs" */
- /* count all receives */
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += size;
- }
- }
-
- /* Let's peek ahead to see if we have read the last current packet */
- /* NOTE! We're _not_ checking the 'EMPTY'-flag! This seems better... */
- curr_page = de620_get_register(dev, R_CPR);
- de620_set_register(dev, W_NPRF, next_rx_page);
- pr_debug("next_rx_page=%d CPR=%d\n", next_rx_page, curr_page);
-
- return next_rx_page != curr_page; /* That was slightly tricky... */
-}
-
-/*********************************************
- *
- * Reset the adapter to a known state
- *
- */
-static int adapter_init(struct net_device *dev)
-{
- int i;
- static int was_down;
-
- if ((nic_data.Model == 3) || (nic_data.Model == 0)) { /* CT */
- EIPRegister = NCTL0;
- if (nic_data.Media != 1)
- EIPRegister |= NIS0; /* not BNC */
- }
- else if (nic_data.Model == 2) { /* UTP */
- EIPRegister = NCTL0 | NIS0;
- }
-
- if (utp)
- EIPRegister = NCTL0 | NIS0;
- if (bnc)
- EIPRegister = NCTL0;
-
- de620_send_command(dev, W_CR | RNOP | CLEAR);
- de620_send_command(dev, W_CR | RNOP);
-
- de620_set_register(dev, W_SCR, SCR_DEF);
- /* disable recv to wait init */
- de620_set_register(dev, W_TCR, RXOFF);
-
- /* Set the node ID in the adapter */
- for (i = 0; i < 6; ++i) { /* W_PARn = 0xaa + n */
- de620_set_register(dev, W_PAR0 + i, dev->dev_addr[i]);
- }
-
- de620_set_register(dev, W_EIP, EIPRegister);
-
- next_rx_page = first_rx_page = DE620_RX_START_PAGE;
- if (nic_data.RAM_Size)
- last_rx_page = nic_data.RAM_Size - 1;
- else /* 64k RAM */
- last_rx_page = 255;
-
- de620_set_register(dev, W_SPR, first_rx_page); /* Start Page Register*/
- de620_set_register(dev, W_EPR, last_rx_page); /* End Page Register */
- de620_set_register(dev, W_CPR, first_rx_page);/*Current Page Register*/
- de620_send_command(dev, W_NPR | first_rx_page); /* Next Page Register*/
- de620_send_command(dev, W_DUMMY);
- de620_set_delay(dev);
-
- /* Final sanity check: Anybody out there? */
- /* Let's hope some bits from the statusregister make a good check */
-#define CHECK_MASK ( 0 | TXSUC | T16 | 0 | RXCRC | RXSHORT | 0 | 0 )
-#define CHECK_OK ( 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 )
- /* success: X 0 0 X 0 0 X X */
- /* ignore: EEDI RXGOOD COLS LNKS*/
-
- if (((i = de620_get_register(dev, R_STS)) & CHECK_MASK) != CHECK_OK) {
- printk(KERN_ERR "%s: Something has happened to the DE-620! Please check it"
-#ifdef SHUTDOWN_WHEN_LOST
- " and do a new ifconfig"
-#endif
- "! (%02x)\n", dev->name, i);
-#ifdef SHUTDOWN_WHEN_LOST
- /* Goodbye, cruel world... */
- dev->flags &= ~IFF_UP;
- de620_close(dev);
-#endif
- was_down = 1;
- return 1; /* failed */
- }
- if (was_down) {
- printk(KERN_WARNING "%s: Thanks, I feel much better now!\n", dev->name);
- was_down = 0;
- }
-
- /* All OK, go ahead... */
- de620_set_register(dev, W_TCR, TCR_DEF);
-
- return 0; /* all ok */
-}
-
-static const struct net_device_ops de620_netdev_ops = {
- .ndo_open = de620_open,
- .ndo_stop = de620_close,
- .ndo_start_xmit = de620_start_xmit,
- .ndo_tx_timeout = de620_timeout,
- .ndo_set_rx_mode = de620_set_multicast_list,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-/******************************************************************************
- *
- * Only start-up code below
- *
- */
-/****************************************
- *
- * Check if there is a DE-620 connected
- */
-struct net_device * __init de620_probe(int unit)
-{
- byte checkbyte = 0xa5;
- struct net_device *dev;
- int err = -ENOMEM;
- int i;
-
- dev = alloc_etherdev(0);
- if (!dev)
- goto out;
-
- spin_lock_init(&de620_lock);
-
- /*
- * This is where the base_addr and irq gets set.
- * Tunable at compile-time and insmod-time
- */
- dev->base_addr = io;
- dev->irq = irq;
-
- /* allow overriding parameters on command line */
- if (unit >= 0) {
- sprintf(dev->name, "eth%d", unit);
- netdev_boot_setup_check(dev);
- }
-
- pr_debug("%s", version);
-
- printk(KERN_INFO "D-Link DE-620 pocket adapter");
-
- if (!request_region(dev->base_addr, 3, "de620")) {
- printk(" io 0x%3lX, which is busy.\n", dev->base_addr);
- err = -EBUSY;
- goto out1;
- }
-
- /* Initially, configure basic nibble mode, so we can read the EEPROM */
- NIC_Cmd = DEF_NIC_CMD;
- de620_set_register(dev, W_EIP, EIPRegister);
-
- /* Anybody out there? */
- de620_set_register(dev, W_CPR, checkbyte);
- checkbyte = de620_get_register(dev, R_CPR);
-
- if ((checkbyte != 0xa5) || (read_eeprom(dev) != 0)) {
- printk(" not identified in the printer port\n");
- err = -ENODEV;
- goto out2;
- }
-
- /* else, got it! */
- dev->dev_addr[0] = nic_data.NodeID[0];
- for (i = 1; i < ETH_ALEN; i++) {
- dev->dev_addr[i] = nic_data.NodeID[i];
- dev->broadcast[i] = 0xff;
- }
-
- printk(", Ethernet Address: %pM", dev->dev_addr);
-
- printk(" (%dk RAM,",
- (nic_data.RAM_Size) ? (nic_data.RAM_Size >> 2) : 64);
-
- if (nic_data.Media == 1)
- printk(" BNC)\n");
- else
- printk(" UTP)\n");
-
- dev->netdev_ops = &de620_netdev_ops;
- dev->watchdog_timeo = HZ*2;
-
- /* base_addr and irq are already set, see above! */
-
- /* dump eeprom */
- pr_debug("\nEEPROM contents:\n"
- "RAM_Size = 0x%02X\n"
- "NodeID = %pM\n"
- "Model = %d\n"
- "Media = %d\n"
- "SCR = 0x%02x\n", nic_data.RAM_Size, nic_data.NodeID,
- nic_data.Model, nic_data.Media, nic_data.SCR);
-
- err = register_netdev(dev);
- if (err)
- goto out2;
- return dev;
-
-out2:
- release_region(dev->base_addr, 3);
-out1:
- free_netdev(dev);
-out:
- return ERR_PTR(err);
-}
-
-/**********************************
- *
- * Read info from on-board EEPROM
- *
- * Note: Bitwise serial I/O to/from the EEPROM vi the status _register_!
- */
-#define sendit(dev,data) de620_set_register(dev, W_EIP, data | EIPRegister);
-
-static unsigned short __init ReadAWord(struct net_device *dev, int from)
-{
- unsigned short data;
- int nbits;
-
- /* cs [__~~] SET SEND STATE */
- /* di [____] */
- /* sck [_~~_] */
- sendit(dev, 0); sendit(dev, 1); sendit(dev, 5); sendit(dev, 4);
-
- /* Send the 9-bit address from where we want to read the 16-bit word */
- for (nbits = 9; nbits > 0; --nbits, from <<= 1) {
- if (from & 0x0100) { /* bit set? */
- /* cs [~~~~] SEND 1 */
- /* di [~~~~] */
- /* sck [_~~_] */
- sendit(dev, 6); sendit(dev, 7); sendit(dev, 7); sendit(dev, 6);
- }
- else {
- /* cs [~~~~] SEND 0 */
- /* di [____] */
- /* sck [_~~_] */
- sendit(dev, 4); sendit(dev, 5); sendit(dev, 5); sendit(dev, 4);
- }
- }
-
- /* Shift in the 16-bit word. The bits appear serially in EEDI (=0x80) */
- for (data = 0, nbits = 16; nbits > 0; --nbits) {
- /* cs [~~~~] SEND 0 */
- /* di [____] */
- /* sck [_~~_] */
- sendit(dev, 4); sendit(dev, 5); sendit(dev, 5); sendit(dev, 4);
- data = (data << 1) | ((de620_get_register(dev, R_STS) & EEDI) >> 7);
- }
- /* cs [____] RESET SEND STATE */
- /* di [____] */
- /* sck [_~~_] */
- sendit(dev, 0); sendit(dev, 1); sendit(dev, 1); sendit(dev, 0);
-
- return data;
-}
-
-static int __init read_eeprom(struct net_device *dev)
-{
- unsigned short wrd;
-
- /* D-Link Ethernet addresses are in the series 00:80:c8:7X:XX:XX:XX */
- wrd = ReadAWord(dev, 0x1aa); /* bytes 0 + 1 of NodeID */
- if (!clone && (wrd != htons(0x0080))) /* Valid D-Link ether sequence? */
- return -1; /* Nope, not a DE-620 */
- nic_data.NodeID[0] = wrd & 0xff;
- nic_data.NodeID[1] = wrd >> 8;
-
- wrd = ReadAWord(dev, 0x1ab); /* bytes 2 + 3 of NodeID */
- if (!clone && ((wrd & 0xff) != 0xc8)) /* Valid D-Link ether sequence? */
- return -1; /* Nope, not a DE-620 */
- nic_data.NodeID[2] = wrd & 0xff;
- nic_data.NodeID[3] = wrd >> 8;
-
- wrd = ReadAWord(dev, 0x1ac); /* bytes 4 + 5 of NodeID */
- nic_data.NodeID[4] = wrd & 0xff;
- nic_data.NodeID[5] = wrd >> 8;
-
- wrd = ReadAWord(dev, 0x1ad); /* RAM size in pages (256 bytes). 0 = 64k */
- nic_data.RAM_Size = (wrd >> 8);
-
- wrd = ReadAWord(dev, 0x1ae); /* hardware model (CT = 3) */
- nic_data.Model = (wrd & 0xff);
-
- wrd = ReadAWord(dev, 0x1af); /* media (indicates BNC/UTP) */
- nic_data.Media = (wrd & 0xff);
-
- wrd = ReadAWord(dev, 0x1a8); /* System Configuration Register */
- nic_data.SCR = (wrd >> 8);
-
- return 0; /* no errors */
-}
-
-/******************************************************************************
- *
- * Loadable module skeleton
- *
- */
-#ifdef MODULE
-static struct net_device *de620_dev;
-
-int __init init_module(void)
-{
- de620_dev = de620_probe(-1);
- if (IS_ERR(de620_dev))
- return PTR_ERR(de620_dev);
- return 0;
-}
-
-void cleanup_module(void)
-{
- unregister_netdev(de620_dev);
- release_region(de620_dev->base_addr, 3);
- free_netdev(de620_dev);
-}
-#endif /* MODULE */
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*********************************************************
- * *
- * Definition of D-Link DE-620 Ethernet Pocket adapter *
- * *
- *********************************************************/
-
-/* DE-620's CMD port Command */
-#define CS0 0x08 /* 1->0 command strobe */
-#define ICEN 0x04 /* 0=enable DL3520 host interface */
-#define DS0 0x02 /* 1->0 data strobe 0 */
-#define DS1 0x01 /* 1->0 data strobe 1 */
-
-#define WDIR 0x20 /* general 0=read 1=write */
-#define RDIR 0x00 /* (not 100% confirm ) */
-#define PS2WDIR 0x00 /* ps/2 mode 1=read, 0=write */
-#define PS2RDIR 0x20
-
-#define IRQEN 0x10 /* 1 = enable printer IRQ line */
-#define SELECTIN 0x08 /* 1 = select printer */
-#define INITP 0x04 /* 0 = initial printer */
-#define AUTOFEED 0x02 /* 1 = printer auto form feed */
-#define STROBE 0x01 /* 0->1 data strobe */
-
-#define RESET 0x08
-#define NIS0 0x20 /* 0 = BNC, 1 = UTP */
-#define NCTL0 0x10
-
-/* DE-620 DIC Command */
-#define W_DUMMY 0x00 /* DIC reserved command */
-#define W_CR 0x20 /* DIC write command register */
-#define W_NPR 0x40 /* DIC write Next Page Register */
-#define W_TBR 0x60 /* DIC write Tx Byte Count 1 reg */
-#define W_RSA 0x80 /* DIC write Remote Start Addr 1 */
-
-/* DE-620's STAT port bits 7-4 */
-#define EMPTY 0x80 /* 1 = receive buffer empty */
-#define INTLEVEL 0x40 /* 1 = interrupt level is high */
-#define TXBF1 0x20 /* 1 = transmit buffer 1 is in use */
-#define TXBF0 0x10 /* 1 = transmit buffer 0 is in use */
-#define READY 0x08 /* 1 = h/w ready to accept cmd/data */
-
-/* IDC 1 Command */
-#define W_RSA1 0xa0 /* write remote start address 1 */
-#define W_RSA0 0xa1 /* write remote start address 0 */
-#define W_NPRF 0xa2 /* write next page register NPR15-NPR8 */
-#define W_DFR 0xa3 /* write delay factor register */
-#define W_CPR 0xa4 /* write current page register */
-#define W_SPR 0xa5 /* write start page register */
-#define W_EPR 0xa6 /* write end page register */
-#define W_SCR 0xa7 /* write system configuration register */
-#define W_TCR 0xa8 /* write Transceiver Configuration reg */
-#define W_EIP 0xa9 /* write EEPM Interface port */
-#define W_PAR0 0xaa /* write physical address register 0 */
-#define W_PAR1 0xab /* write physical address register 1 */
-#define W_PAR2 0xac /* write physical address register 2 */
-#define W_PAR3 0xad /* write physical address register 3 */
-#define W_PAR4 0xae /* write physical address register 4 */
-#define W_PAR5 0xaf /* write physical address register 5 */
-
-/* IDC 2 Command */
-#define R_STS 0xc0 /* read status register */
-#define R_CPR 0xc1 /* read current page register */
-#define R_BPR 0xc2 /* read boundary page register */
-#define R_TDR 0xc3 /* read time domain reflectometry reg */
-
-/* STATUS Register */
-#define EEDI 0x80 /* EEPM DO pin */
-#define TXSUC 0x40 /* tx success */
-#define T16 0x20 /* tx fail 16 times */
-#define TS1 0x40 /* 0=Tx success, 1=T16 */
-#define TS0 0x20 /* 0=Tx success, 1=T16 */
-#define RXGOOD 0x10 /* rx a good packet */
-#define RXCRC 0x08 /* rx a CRC error packet */
-#define RXSHORT 0x04 /* rx a short packet */
-#define COLS 0x02 /* coaxial collision status */
-#define LNKS 0x01 /* UTP link status */
-
-/* Command Register */
-#define CLEAR 0x10 /* reset part of hardware */
-#define NOPER 0x08 /* No Operation */
-#define RNOP 0x08
-#define RRA 0x06 /* After RR then auto-advance NPR & BPR(=NPR-1) */
-#define RRN 0x04 /* Normal Remote Read mode */
-#define RW1 0x02 /* Remote Write tx buffer 1 ( page 6 - 11 ) */
-#define RW0 0x00 /* Remote Write tx buffer 0 ( page 0 - 5 ) */
-#define TXEN 0x01 /* 0->1 tx enable */
-
-/* System Configuration Register */
-#define TESTON 0x80 /* test host data transfer reliability */
-#define SLEEP 0x40 /* sleep mode */
-#if 0
-#define FASTMODE 0x04 /* fast mode for intel 82360SL fast mode */
-#define BYTEMODE 0x02 /* byte mode */
-#else
-#define FASTMODE 0x20 /* fast mode for intel 82360SL fast mode */
-#define BYTEMODE 0x10 /* byte mode */
-#endif
-#define NIBBLEMODE 0x00 /* nibble mode */
-#define IRQINV 0x08 /* turn off IRQ line inverter */
-#define IRQNML 0x00 /* turn on IRQ line inverter */
-#define INTON 0x04
-#define AUTOFFSET 0x02 /* auto shift address to TPR+12 */
-#define AUTOTX 0x01 /* auto tx when leave RW mode */
-
-/* Transceiver Configuration Register */
-#define JABBER 0x80 /* generate jabber condition */
-#define TXSUCINT 0x40 /* enable tx success interrupt */
-#define T16INT 0x20 /* enable T16 interrupt */
-#define RXERRPKT 0x10 /* accept CRC error or short packet */
-#define EXTERNALB2 0x0C /* external loopback 2 */
-#define EXTERNALB1 0x08 /* external loopback 1 */
-#define INTERNALB 0x04 /* internal loopback */
-#define NMLOPERATE 0x00 /* normal operation */
-#define RXPBM 0x03 /* rx physical, broadcast, multicast */
-#define RXPB 0x02 /* rx physical, broadcast */
-#define RXALL 0x01 /* rx all packet */
-#define RXOFF 0x00 /* rx disable */
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff