1107 lines
34 KiB
Diff
1107 lines
34 KiB
Diff
Subject: [PATCH] m68k: Atari EtherNEC driver
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Cc: Jeff Garzik <jgarzik@pobox.com>, netdev@vger.kernel.org
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From: Michael Schmitz <schmitz@opal.biophys.uni-duesseldorf.de>
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|
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Atari EtherNEC driver
|
||
|
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Signed-off-by: Michael Schmitz <schmitz@debian.org>
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Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
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Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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---
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drivers/net/Makefile | 1
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drivers/net/Space.c | 4
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drivers/net/atari_ethernec.c | 1057 +++++++++++++++++++++++++++++++++++++++++++
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3 files changed, 1062 insertions(+)
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--- linux-m68k-2.6.21.orig/drivers/net/Makefile
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+++ linux-m68k-2.6.21/drivers/net/Makefile
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@@ -177,6 +177,7 @@ obj-$(CONFIG_DECLANCE) += declance.o
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obj-$(CONFIG_ATARILANCE) += atarilance.o
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obj-$(CONFIG_ATARI_BIONET) += atari_bionet.o
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obj-$(CONFIG_ATARI_PAMSNET) += atari_pamsnet.o
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+obj-$(CONFIG_ATARI_ETHERNEC) += atari_ethernec.o 8390.o
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obj-$(CONFIG_A2065) += a2065.o
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obj-$(CONFIG_HYDRA) += hydra.o
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obj-$(CONFIG_ARIADNE) += ariadne.o
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--- linux-m68k-2.6.21.orig/drivers/net/Space.c
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+++ linux-m68k-2.6.21/drivers/net/Space.c
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@@ -72,6 +72,7 @@ extern struct net_device *SK_init(int un
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extern struct net_device *seeq8005_probe(int unit);
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extern struct net_device *smc_init(int unit);
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extern struct net_device *atarilance_probe(int unit);
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+extern struct net_device *atari_ethernec_probe(int unit);
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extern struct net_device *sun3lance_probe(int unit);
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extern struct net_device *sun3_82586_probe(int unit);
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extern struct net_device *apne_probe(int unit);
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@@ -255,6 +256,9 @@ static struct devprobe2 m68k_probes[] __
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#ifdef CONFIG_ATARILANCE /* Lance-based Atari ethernet boards */
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{atarilance_probe, 0},
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#endif
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+#ifdef CONFIG_ATARI_ETHERNEC /* NE2000 based ROM port ethernet cards */
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+ {atari_ethernec_probe, 0},
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+#endif
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#ifdef CONFIG_SUN3LANCE /* sun3 onboard Lance chip */
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{sun3lance_probe, 0},
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#endif
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--- /dev/null
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+++ linux-m68k-2.6.21/drivers/net/atari_ethernec.c
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@@ -0,0 +1,1057 @@
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+/*
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+ * atari_ethernec.c: Atari cartridge port ethernet adapter
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+ * (C) 2006 Michael Schmitz
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+ *
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+ * Modified after:
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+ */
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+
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+/* ne.c: A general non-shared-memory NS8390 ethernet driver for linux. */
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+/*
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+ Written 1992-94 by Donald Becker.
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+
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+ Copyright 1993 United States Government as represented by the
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+ Director, National Security Agency.
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+
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+ This software may be used and distributed according to the terms
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+ of the GNU General Public License, incorporated herein by reference.
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+
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+ The author may be reached as becker@scyld.com, or C/O
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+ Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403
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+
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+ This driver should work with many programmed-I/O 8390-based ethernet
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+ boards. Currently it supports the NE1000, NE2000, many clones,
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+ and some Cabletron products.
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+
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+ Changelog:
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+
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+ Paul Gortmaker : use ENISR_RDC to monitor Tx PIO uploads, made
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+ sanity checks and bad clone support optional.
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+ Paul Gortmaker : new reset code, reset card after probe at boot.
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+ Paul Gortmaker : multiple card support for module users.
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+ Paul Gortmaker : Support for PCI ne2k clones, similar to lance.c
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+ Paul Gortmaker : Allow users with bad cards to avoid full probe.
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+ Paul Gortmaker : PCI probe changes, more PCI cards supported.
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+ rjohnson@analogic.com : Changed init order so an interrupt will only
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+ occur after memory is allocated for dev->priv. Deallocated memory
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+ last in cleanup_modue()
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+ Richard Guenther : Added support for ISAPnP cards
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+ Paul Gortmaker : Discontinued PCI support - use ne2k-pci.c instead.
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+ Hayato Fujiwara : Add m32r support.
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+
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+*/
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+
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+/*
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+ * From the driver distribution kit by Thomas Redelberger:
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+ *
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+ * Hardware circuit description (see directory ETHERNEC for schematics)
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+ *
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+ * As there is no reset line on the CP, a resistor and a capacitor are
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+ * used to reset the NE card on power up.
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+ *
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+ * Reading from the NE card is done by a read cycle on the CP at address
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+ * /ROM4 + 512*ISA address as the ISA address lines A0-A4 are connected
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+ * to CP A9-A13. /ROM4 going low will start the ISA read cycle, enable
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+ * the ISA bus buffers of the NE card and start decoding of the ISA IO
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+ * address by the NE card. /ROM4 going high ends the cycle and the
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+ * processor latches the data.
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+ *
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+ * Because the CP is read only writing to the NE card must be done with
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+ * the trick to read from addresses that stand for the data. Dummy reads
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+ * at /ROM3 base address + data*2 + ISA address*512 effect this. You
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+ * might wonder why everything appears to be shifted up one bit. There is
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+ * no CP "A0" address line. There are the signals /UDS and /LDS instead
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+ * typical for the 68000 family. The original design which generated an
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+ * "A0" worked on an ST and an STE but did not on a Falcon.
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+ *
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+ * The falling edge of /ROM3 enables the CP address lines A1-A8 onto the
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+ * data bus and starts the ISA write cycle. The rising edge will end the
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+ * ISA write cycle and the NE latches the data. The processor will also
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+ * see and just read this same data but that is harmless.
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+ * Elmar Hilgart reported that the bus buffer IC shall be an TTL F-type
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+ * to keep up with the fast cycles on the Falcon.
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+ *
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+ * Base addresses:
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+ * rom4 EQU $00fa0000 ; ROM4 base address
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+ * rom3 EQU $00fb0000 ; ROM3 base address
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+ *
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+ */
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+
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+/* Routines for the NatSemi-based designs (NE[12]000). */
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+
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+static const char version1[] =
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+"ne.c:v1.10 9/23/94 Donald Becker (becker@scyld.com)\n";
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+static const char version2[] =
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+"atari_ethernec.c 11/10/06 Michael Schmitz (schmitz@debian.org)\n";
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+
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+
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+#include <linux/module.h>
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+#include <linux/kernel.h>
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+#include <linux/wait.h>
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+#include <linux/sched.h>
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+#include <linux/errno.h>
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+#include <linux/isapnp.h>
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+#include <linux/init.h>
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+#include <linux/interrupt.h>
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+#include <linux/delay.h>
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+#include <linux/netdevice.h>
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+#include <linux/etherdevice.h>
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+#include <linux/jiffies.h>
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+
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+#include <asm/system.h>
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+#include <asm/atarihw.h>
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+#include <asm/atariints.h>
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+#include <asm/io.h>
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+
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+#include "8390.h"
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+
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+#define DRV_NAME "ethernec"
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+
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+/* Some defines that people can play with if so inclined. */
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+
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+/* Do we support clones that don't adhere to 14,15 of the SAprom ? */
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+#define SUPPORT_NE_BAD_CLONES
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+
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+/* Do we perform extra sanity checks on stuff ? */
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+/* #define NE_SANITY_CHECK */
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+
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+/* Do we implement the read before write bugfix ? */
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+/* #define NE_RW_BUGFIX */
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+
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+/* Do we have a non std. amount of memory? (in units of 256 byte pages) */
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+/* #define PACKETBUF_MEMSIZE 0x40 */
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+
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+/* A zero-terminated list of I/O addresses to be probed at boot. */
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+#ifndef MODULE
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+static unsigned int netcard_portlist[] __initdata = {
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+ 0x300, 0x280, 0x320, 0x340, 0x360, 0x380, 0
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+};
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+#endif
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+
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+static struct isapnp_device_id isapnp_clone_list[] __initdata = {
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+ { ISAPNP_CARD_ID('A','X','E',0x2011),
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+ ISAPNP_VENDOR('A','X','E'), ISAPNP_FUNCTION(0x2011),
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+ (long) "NetGear EA201" },
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+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
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+ ISAPNP_VENDOR('E','D','I'), ISAPNP_FUNCTION(0x0216),
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+ (long) "NN NE2000" },
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+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
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+ ISAPNP_VENDOR('P','N','P'), ISAPNP_FUNCTION(0x80d6),
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+ (long) "Generic PNP" },
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+ { } /* terminate list */
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+};
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+
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+MODULE_DEVICE_TABLE(isapnp, isapnp_clone_list);
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+
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+#ifdef SUPPORT_NE_BAD_CLONES
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+/* A list of bad clones that we none-the-less recognize. */
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+static struct { const char *name8, *name16; unsigned char SAprefix[4];}
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+bad_clone_list[] __initdata = {
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+ {"DE100", "DE200", {0x00, 0xDE, 0x01,}},
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+ {"DE120", "DE220", {0x00, 0x80, 0xc8,}},
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+ {"DFI1000", "DFI2000", {'D', 'F', 'I',}}, /* Original, eh? */
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+ {"EtherNext UTP8", "EtherNext UTP16", {0x00, 0x00, 0x79}},
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+ {"NE1000","NE2000-invalid", {0x00, 0x00, 0xd8}}, /* Ancient real NE1000. */
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+ {"NN1000", "NN2000", {0x08, 0x03, 0x08}}, /* Outlaw no-name clone. */
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+ {"4-DIM8","4-DIM16", {0x00,0x00,0x4d,}}, /* Outlaw 4-Dimension cards. */
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+ {"Con-Intl_8", "Con-Intl_16", {0x00, 0x00, 0x24}}, /* Connect Int'nl */
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+ {"ET-100","ET-200", {0x00, 0x45, 0x54}}, /* YANG and YA clone */
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+ {"COMPEX","COMPEX16",{0x00,0x80,0x48}}, /* Broken ISA Compex cards */
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+ {"E-LAN100", "E-LAN200", {0x00, 0x00, 0x5d}}, /* Broken ne1000 clones */
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+ {"PCM-4823", "PCM-4823", {0x00, 0xc0, 0x6c}}, /* Broken Advantech MoBo */
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+ {"REALTEK", "RTL8019", {0x00, 0x00, 0xe8}}, /* no-name with Realtek chip */
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+#if defined(CONFIG_TOSHIBA_RBTX4927) || defined(CONFIG_TOSHIBA_RBTX4938)
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+ {"RBHMA4X00-RTL8019", "RBHMA4X00/RTL8019", {0x00, 0x60, 0x0a}}, /* Toshiba built-in */
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+#endif
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+ {"LCS-8834", "LCS-8836", {0x04, 0x04, 0x37}}, /* ShinyNet (SET) */
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+ {NULL,}
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+};
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+#endif
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+
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+/* ---- No user-serviceable parts below ---- */
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+
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+#define NE_BASE (dev->base_addr)
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+#define NE_CMD 0x00
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+#define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */
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+#define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */
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+#define NE_IO_EXTENT 0x20
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+
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+#define NE1SM_START_PG 0x20 /* First page of TX buffer */
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+#define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */
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+#define NESM_START_PG 0x40 /* First page of TX buffer */
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+#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */
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+
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+#if defined(CONFIG_PLAT_MAPPI)
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+# define DCR_VAL 0x4b
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+#elif defined(CONFIG_PLAT_OAKS32R) || \
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+ defined(CONFIG_TOSHIBA_RBTX4927) || defined(CONFIG_TOSHIBA_RBTX4938) || \
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+ defined(CONFIG_ATARI_ETHERNEC) || defined(CONFIG_ATARI_ETHERNEC_MODULE)
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+# define DCR_VAL 0x48 /* 8-bit mode */
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+#else
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+# define DCR_VAL 0x49
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+#endif
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+
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+#if defined(CONFIG_ATARI_ETHERNEC) || defined(CONFIG_ATARI_ETHERNEC_MODULE)
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+# define ETHERNEC_RTL_8019_BASE 0x300
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+# define ETHERNEC_RTL_8019_IRQ IRQ_MFP_TIMD
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+#endif
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+
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+static int ne_probe1(struct net_device *dev, int ioaddr);
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+static int ne_probe_isapnp(struct net_device *dev);
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+
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+static int ne_open(struct net_device *dev);
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+static int ne_close(struct net_device *dev);
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+
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+static void ne_reset_8390(struct net_device *dev);
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+static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
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+ int ring_page);
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+static void ne_block_input(struct net_device *dev, int count,
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+ struct sk_buff *skb, int ring_offset);
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+static void ne_block_output(struct net_device *dev, const int count,
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+ const unsigned char *buf, const int start_page);
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+
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+
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+/*
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+ * The Atari ROM port has no interrupt line, so we poll the card instead.
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+ */
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+
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+static int use_poll;
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+
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+/*
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+ * This is used by cleanup, to prevent the module from being unloaded while
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+ * intrpt_routine is still in the task queue
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+ */
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+static wait_queue_head_t WaitQ;
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+
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+static struct work_struct tqueue;
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+
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+#ifdef ETHERNEC_USE_POLL
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+static struct {
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+ struct work_struct poll_queue;
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+ struct timer_list poll_timer;
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+ struct net_device *dev;
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+} poll_ops;
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+#endif
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+
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+static struct net_device *poll_dev = NULL;
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+
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+static void atari_ethernec_int(unsigned long dev_addr)
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+{
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+ struct net_device *dev = poll_dev;
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+
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+ if (!dev) {
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+ /* If cleanup wants us to die */
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+ if (waitqueue_active(&WaitQ))
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+ wake_up(&WaitQ); /* Now cleanup_module can return */
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+ else
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+ /* Put ourselves back in the task queue */
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+ schedule_delayed_work(&tqueue, 1);
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+ return;
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+ }
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+
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+ if (netif_running(dev))
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+ ei_interrupt(dev->irq, dev);
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+
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+ /* If cleanup wants us to die */
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+ if (waitqueue_active(&WaitQ))
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+ wake_up(&WaitQ); /* Now cleanup_module can return */
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+ else
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+ /* Put ourselves back in the task queue */
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+ schedule_delayed_work(&tqueue, 0); /* reduced delay from 1 */
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+}
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+
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+#ifdef ETHERNEC_USE_POLL
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+static void atari_ethernec_poll_handler(unsigned long dev_addr)
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+{
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+ struct net_device *dev = poll_dev;
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+
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+ if (!dev || !dev->poll_controller)
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+ return;
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+
|
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+ if (netif_running(dev))
|
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+ dev->poll_controller(dev);
|
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+
|
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+ schedule_work(&poll_ops.poll_queue);
|
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+ mod_timer(&poll_ops.poll_timer, jiffies + HZ / 100);
|
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+}
|
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+#endif
|
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+
|
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+static void atari_ethernec_start_poll(struct net_device *dev)
|
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+{
|
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+ poll_dev = dev;
|
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+
|
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+ init_waitqueue_head(&WaitQ);
|
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+
|
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+ INIT_WORK(&tqueue, (void (*)(void *))atari_ethernec_int, dev);
|
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+ schedule_delayed_work(&tqueue, 1);
|
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+#ifdef ETHERNEC_USE_POLL
|
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+ if (!poll_ops.poll_queue.func ||
|
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+ poll_ops.poll_queue.func == ei_interrupt) {
|
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+ if (!poll_ops.poll_queue.func)
|
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+ INIT_WORK(&poll_ops.poll_queue, ei_interrupt, dev);
|
||
+
|
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+ init_timer(&poll_ops.poll_timer);
|
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+ poll_ops.poll_timer.function = atari_ethernec_poll_handler;
|
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+ poll_ops.poll_timer.expires = jiffies + HZ / 5;
|
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+ poll_ops.poll_timer.data = (unsigned long)dev;
|
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+ add_timer(&poll_ops.poll_timer);
|
||
+ }
|
||
+#endif
|
||
+}
|
||
+
|
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+static void atari_ethernec_stop_poll(struct net_device *dev)
|
||
+{
|
||
+ poll_dev = NULL;
|
||
+
|
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+ if (dev)
|
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+ sleep_on(&WaitQ);
|
||
+
|
||
+#ifdef ETHERNEC_USE_POLL
|
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+ if (poll_ops.poll_queue.func == ei_interrupt)
|
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+ del_timer_sync(&poll_ops.poll_timer);
|
||
+#endif
|
||
+}
|
||
+
|
||
+
|
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+/* Probe for various non-shared-memory ethercards.
|
||
+
|
||
+ NEx000-clone boards have a Station Address PROM (SAPROM) in the packet
|
||
+ buffer memory space. NE2000 clones have 0x57,0x57 in bytes 0x0e,0x0f of
|
||
+ the SAPROM, while other supposed NE2000 clones must be detected by their
|
||
+ SA prefix.
|
||
+
|
||
+ Reading the SAPROM from a word-wide card with the 8390 set in byte-wide
|
||
+ mode results in doubled values, which can be detected and compensated for.
|
||
+
|
||
+ The probe is also responsible for initializing the card and filling
|
||
+ in the 'dev' and 'ei_status' structures.
|
||
+
|
||
+ We use the minimum memory size for some ethercard product lines, iff we can't
|
||
+ distinguish models. You can increase the packet buffer size by setting
|
||
+ PACKETBUF_MEMSIZE. Reported Cabletron packet buffer locations are:
|
||
+ E1010 starts at 0x100 and ends at 0x2000.
|
||
+ E1010-x starts at 0x100 and ends at 0x8000. ("-x" means "more memory")
|
||
+ E2010 starts at 0x100 and ends at 0x4000.
|
||
+ E2010-x starts at 0x100 and ends at 0xffff.
|
||
+*/
|
||
+
|
||
+static int __init do_ne_probe(struct net_device *dev)
|
||
+{
|
||
+ unsigned int base_addr = dev->base_addr;
|
||
+ int rv;
|
||
+#ifndef MODULE
|
||
+ int orig_irq = dev->irq;
|
||
+#endif
|
||
+
|
||
+ SET_MODULE_OWNER(dev);
|
||
+
|
||
+ /* First check any supplied i/o locations. User knows best. <cough> */
|
||
+ if (base_addr > 0x1ff) { /* Check a single specified location. */
|
||
+ rv = ne_probe1(dev, base_addr);
|
||
+ if (!rv && use_poll) {
|
||
+ /* Seems we have a valid device here; set up polling routine */
|
||
+ poll_dev = dev;
|
||
+ atari_ethernec_start_poll(dev);
|
||
+ }
|
||
+ return rv;
|
||
+ } else if (base_addr != 0) /* Don't probe at all. */
|
||
+ return -ENXIO;
|
||
+
|
||
+ /* Then look for any installed ISAPnP clones */
|
||
+ if (isapnp_present() && (ne_probe_isapnp(dev) == 0))
|
||
+ return 0;
|
||
+
|
||
+#ifndef MODULE
|
||
+ /* Last resort. The semi-risky ISA auto-probe. */
|
||
+ for (base_addr = 0; netcard_portlist[base_addr] != 0; base_addr++) {
|
||
+ int ioaddr = netcard_portlist[base_addr];
|
||
+ dev->irq = orig_irq;
|
||
+ rv = ne_probe1(dev, ioaddr);
|
||
+ if (rv == 0) {
|
||
+ if (use_poll) {
|
||
+ poll_dev = dev;
|
||
+ atari_ethernec_start_poll(dev);
|
||
+ }
|
||
+ return 0;
|
||
+ }
|
||
+ }
|
||
+#endif
|
||
+
|
||
+ return -ENODEV;
|
||
+}
|
||
+
|
||
+#ifndef MODULE
|
||
+struct net_device * __init atari_ethernec_probe(int unit)
|
||
+{
|
||
+ struct net_device *dev = alloc_ei_netdev();
|
||
+ int err;
|
||
+
|
||
+ if (!dev)
|
||
+ return ERR_PTR(-ENOMEM);
|
||
+
|
||
+ sprintf(dev->name, "eth%d", unit);
|
||
+ netdev_boot_setup_check(dev);
|
||
+
|
||
+#if defined(CONFIG_ATARI_ETHERNEC)
|
||
+ dev->base_addr = ETHERNEC_RTL_8019_BASE;
|
||
+ dev->irq = ETHERNEC_RTL_8019_IRQ;
|
||
+#endif
|
||
+ err = do_ne_probe(dev);
|
||
+ if (err)
|
||
+ goto out;
|
||
+
|
||
+ /* Seems we have a valid device here; set up polling routine */
|
||
+ return dev;
|
||
+out:
|
||
+ free_netdev(dev);
|
||
+ return ERR_PTR(err);
|
||
+}
|
||
+#endif
|
||
+
|
||
+static int __init ne_probe_isapnp(struct net_device *dev)
|
||
+{
|
||
+ int i;
|
||
+
|
||
+ for (i = 0; isapnp_clone_list[i].vendor != 0; i++) {
|
||
+ struct pnp_dev *idev = NULL;
|
||
+
|
||
+ while ((idev = pnp_find_dev(NULL,
|
||
+ isapnp_clone_list[i].vendor,
|
||
+ isapnp_clone_list[i].function,
|
||
+ idev))) {
|
||
+ /* Avoid already found cards from previous calls */
|
||
+ if (pnp_device_attach(idev) < 0)
|
||
+ continue;
|
||
+ if (pnp_activate_dev(idev) < 0) {
|
||
+ pnp_device_detach(idev);
|
||
+ continue;
|
||
+ }
|
||
+ /* if no io and irq, search for next */
|
||
+ if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0)) {
|
||
+ pnp_device_detach(idev);
|
||
+ continue;
|
||
+ }
|
||
+ /* found it */
|
||
+ dev->base_addr = pnp_port_start(idev, 0);
|
||
+ dev->irq = pnp_irq(idev, 0);
|
||
+ printk(KERN_INFO "atari_ethernec.c: ISAPnP reports %s at i/o %#lx, irq %d.\n",
|
||
+ (char *) isapnp_clone_list[i].driver_data,
|
||
+ dev->base_addr, dev->irq);
|
||
+ if (ne_probe1(dev, dev->base_addr) != 0) { /* Shouldn't happen. */
|
||
+ printk(KERN_ERR "atari_ethernec.c: Probe of ISAPnP card at %#lx failed.\n",
|
||
+ dev->base_addr);
|
||
+ pnp_device_detach(idev);
|
||
+ return -ENXIO;
|
||
+ }
|
||
+ ei_status.priv = (unsigned long)idev;
|
||
+ break;
|
||
+ }
|
||
+ if (!idev)
|
||
+ continue;
|
||
+ return 0;
|
||
+ }
|
||
+
|
||
+ return -ENODEV;
|
||
+}
|
||
+
|
||
+static int __init ne_probe1(struct net_device *dev, int ioaddr)
|
||
+{
|
||
+ int i;
|
||
+ unsigned char SA_prom[32];
|
||
+ int wordlength = 2;
|
||
+ const char *name = NULL;
|
||
+ int start_page, stop_page;
|
||
+ int neX000, ctron, copam, bad_card;
|
||
+ int reg0, ret;
|
||
+ static unsigned version_printed;
|
||
+
|
||
+ if (!request_region(ioaddr, NE_IO_EXTENT, DRV_NAME))
|
||
+ return -EBUSY;
|
||
+
|
||
+ reg0 = inb_p(ioaddr);
|
||
+ if (reg0 == 0xFF) {
|
||
+ ret = -ENODEV;
|
||
+ goto err_out;
|
||
+ }
|
||
+
|
||
+ /* Do a preliminary verification that we have a 8390. */
|
||
+ {
|
||
+ int regd;
|
||
+ outb_p(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD);
|
||
+ regd = inb_p(ioaddr + 0x0d);
|
||
+ outb_p(0xff, ioaddr + 0x0d);
|
||
+ outb_p(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD);
|
||
+ inb_p(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */
|
||
+ if (inb_p(ioaddr + EN0_COUNTER0) != 0) {
|
||
+ outb_p(reg0, ioaddr);
|
||
+ outb_p(regd, ioaddr + 0x0d); /* Restore the old values. */
|
||
+ ret = -ENODEV;
|
||
+ goto err_out;
|
||
+ }
|
||
+ }
|
||
+
|
||
+ if (ei_debug && version_printed++ == 0)
|
||
+ printk(KERN_INFO "%s" KERN_INFO "%s", version1, version2);
|
||
+
|
||
+ /* A user with a poor card that fails to ack the reset, or that
|
||
+ does not have a valid 0x57,0x57 signature can still use this
|
||
+ without having to recompile. Specifying an i/o address along
|
||
+ with an otherwise unused dev->mem_end value of "0xBAD" will
|
||
+ cause the driver to skip these parts of the probe. */
|
||
+
|
||
+ bad_card = ((dev->base_addr != 0) && (dev->mem_end == 0xbad));
|
||
+
|
||
+ /* Reset card. Who knows what dain-bramaged state it was left in. */
|
||
+
|
||
+ {
|
||
+ unsigned long reset_start_time = jiffies;
|
||
+
|
||
+ /* DON'T change these to inb_p/outb_p or reset will fail on clones. */
|
||
+ outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET);
|
||
+
|
||
+ while ((inb_p(ioaddr + EN0_ISR) & ENISR_RESET) == 0) {
|
||
+ if (time_after(jiffies, reset_start_time + 2 * HZ / 100)) {
|
||
+ if (bad_card) {
|
||
+ printk(" (warning: no reset ack)");
|
||
+ break;
|
||
+ } else {
|
||
+ // MSch: ARAnyM exits here
|
||
+ printk(" not found (no reset ack).\n");
|
||
+ ret = -ENODEV;
|
||
+ goto err_out;
|
||
+ }
|
||
+ }
|
||
+ }
|
||
+
|
||
+ outb_p(0xff, ioaddr + EN0_ISR); /* Ack all intr. */
|
||
+ }
|
||
+
|
||
+ /* Read the 16 bytes of station address PROM.
|
||
+ We must first initialize registers, similar to NS8390_init(eifdev, 0).
|
||
+ We can't reliably read the SAPROM address without this.
|
||
+ (I learned the hard way!). */
|
||
+ {
|
||
+ struct {unsigned char value, offset; } program_seq[] =
|
||
+ {
|
||
+ {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/
|
||
+ {0x48, EN0_DCFG}, /* Set byte-wide (0x48) access. */
|
||
+ {0x00, EN0_RCNTLO}, /* Clear the count regs. */
|
||
+ {0x00, EN0_RCNTHI},
|
||
+ {0x00, EN0_IMR}, /* Mask completion irq. */
|
||
+ {0xFF, EN0_ISR},
|
||
+ {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */
|
||
+ {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */
|
||
+ {32, EN0_RCNTLO},
|
||
+ {0x00, EN0_RCNTHI},
|
||
+ {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */
|
||
+ {0x00, EN0_RSARHI},
|
||
+ {E8390_RREAD+E8390_START, E8390_CMD},
|
||
+ };
|
||
+
|
||
+ for (i = 0; i < sizeof(program_seq)/sizeof(program_seq[0]); i++)
|
||
+ outb_p(program_seq[i].value, ioaddr + program_seq[i].offset);
|
||
+
|
||
+ }
|
||
+ for (i = 0; i < 32 /*sizeof(SA_prom)*/; i += 2) {
|
||
+ SA_prom[i] = inb(ioaddr + NE_DATAPORT);
|
||
+ SA_prom[i+1] = inb(ioaddr + NE_DATAPORT);
|
||
+ if (SA_prom[i] != SA_prom[i+1])
|
||
+ wordlength = 1;
|
||
+ }
|
||
+
|
||
+ if (wordlength == 2) {
|
||
+ for (i = 0; i < 16; i++)
|
||
+ SA_prom[i] = SA_prom[i+i];
|
||
+ /* We must set the 8390 for word mode. */
|
||
+ outb_p(DCR_VAL, ioaddr + EN0_DCFG);
|
||
+ start_page = NESM_START_PG;
|
||
+
|
||
+ /*
|
||
+ * Realtek RTL8019AS datasheet says that the PSTOP register
|
||
+ * shouldn't exceed 0x60 in 8-bit mode.
|
||
+ * This chip can be identified by reading the signature from
|
||
+ * the remote byte count registers (otherwise write-only)...
|
||
+ */
|
||
+ if ((DCR_VAL & 0x01) == 0 && /* 8-bit mode */
|
||
+ inb(ioaddr + EN0_RCNTLO) == 0x50 &&
|
||
+ inb(ioaddr + EN0_RCNTHI) == 0x70)
|
||
+ stop_page = 0x60;
|
||
+ else
|
||
+ stop_page = NESM_STOP_PG;
|
||
+ } else {
|
||
+ start_page = NE1SM_START_PG;
|
||
+ stop_page = NE1SM_STOP_PG;
|
||
+ }
|
||
+
|
||
+#if defined(CONFIG_PLAT_MAPPI) || defined(CONFIG_PLAT_OAKS32R)
|
||
+ neX000 = ((SA_prom[14] == 0x57 && SA_prom[15] == 0x57)
|
||
+ || (SA_prom[14] == 0x42 && SA_prom[15] == 0x42));
|
||
+#else
|
||
+ neX000 = (SA_prom[14] == 0x57 && SA_prom[15] == 0x57);
|
||
+#endif
|
||
+ ctron = (SA_prom[0] == 0x00 && SA_prom[1] == 0x00 && SA_prom[2] == 0x1d);
|
||
+ copam = (SA_prom[14] == 0x49 && SA_prom[15] == 0x00);
|
||
+
|
||
+ /* Set up the rest of the parameters. */
|
||
+ if (neX000 || bad_card || copam) {
|
||
+ name = (wordlength == 2) ? "NE2000" : "NE1000";
|
||
+ } else if (ctron) {
|
||
+ name = (wordlength == 2) ? "Ctron-8" : "Ctron-16";
|
||
+ start_page = 0x01;
|
||
+ stop_page = (wordlength == 2) ? 0x40 : 0x20;
|
||
+ } else {
|
||
+#ifdef SUPPORT_NE_BAD_CLONES
|
||
+ /* Ack! Well, there might be a *bad* NE*000 clone there.
|
||
+ Check for total bogus addresses. */
|
||
+ for (i = 0; bad_clone_list[i].name8; i++) {
|
||
+ if (SA_prom[0] == bad_clone_list[i].SAprefix[0] &&
|
||
+ SA_prom[1] == bad_clone_list[i].SAprefix[1] &&
|
||
+ SA_prom[2] == bad_clone_list[i].SAprefix[2]) {
|
||
+ if (wordlength == 2) {
|
||
+ name = bad_clone_list[i].name16;
|
||
+ } else {
|
||
+ name = bad_clone_list[i].name8;
|
||
+ }
|
||
+ break;
|
||
+ }
|
||
+ }
|
||
+ if (bad_clone_list[i].name8 == NULL) {
|
||
+ printk(" not found (invalid signature %2.2x %2.2x).\n",
|
||
+ SA_prom[14], SA_prom[15]);
|
||
+ ret = -ENXIO;
|
||
+ goto err_out;
|
||
+ }
|
||
+#else
|
||
+ printk(" not found.\n");
|
||
+ ret = -ENXIO;
|
||
+ goto err_out;
|
||
+#endif
|
||
+ }
|
||
+
|
||
+ if (dev->irq < 2) {
|
||
+ unsigned long cookie = probe_irq_on();
|
||
+ outb_p(0x50, ioaddr + EN0_IMR); /* Enable one interrupt. */
|
||
+ outb_p(0x00, ioaddr + EN0_RCNTLO);
|
||
+ outb_p(0x00, ioaddr + EN0_RCNTHI);
|
||
+ outb_p(E8390_RREAD+E8390_START, ioaddr); /* Trigger it... */
|
||
+ mdelay(10); /* wait 10ms for interrupt to propagate */
|
||
+ outb_p(0x00, ioaddr + EN0_IMR); /* Mask it again. */
|
||
+ dev->irq = probe_irq_off(cookie);
|
||
+ if (ei_debug > 2)
|
||
+ printk(" autoirq is %d\n", dev->irq);
|
||
+ } else if (dev->irq == 2)
|
||
+ /* Fixup for users that don't know that IRQ 2 is really IRQ 9,
|
||
+ or don't know which one to set. */
|
||
+ dev->irq = 9;
|
||
+
|
||
+ /*
|
||
+ * use timer based polling!
|
||
+ */
|
||
+ if (! dev->irq) {
|
||
+ printk(" failed to detect IRQ line. Assuming irq %d\n",
|
||
+ ETHERNEC_RTL_8019_IRQ);
|
||
+ dev->irq = ETHERNEC_RTL_8019_IRQ;
|
||
+ /* timer routine set up in atari_ethernec_probe() */
|
||
+ if (dev->irq == IRQ_MFP_TIMD) {
|
||
+ /* set Timer D data Register */
|
||
+ mfp.tim_dt_d = 123; /* 200 Hz */
|
||
+ /* start timer D, div = 1:100 */
|
||
+ mfp.tim_ct_cd = (mfp.tim_ct_cd & 0xf0) | 0x6;
|
||
+ }
|
||
+ ret = request_irq(dev->irq, ei_interrupt, 0, name, dev);
|
||
+ if (ret) {
|
||
+ printk(" unable to get IRQ %d (errno=%d), polling instead.\n",
|
||
+ dev->irq, ret);
|
||
+ use_poll = 1;
|
||
+ }
|
||
+ } else {
|
||
+
|
||
+ /* Snarf the interrupt now. There's no point in waiting since we cannot
|
||
+ share and the board will usually be enabled. */
|
||
+ ret = request_irq(dev->irq, ei_interrupt, 0, name, dev);
|
||
+ if (ret) {
|
||
+ printk(" unable to get IRQ %d (errno=%d).\n", dev->irq, ret);
|
||
+ goto err_out;
|
||
+ }
|
||
+ }
|
||
+ dev->base_addr = ioaddr;
|
||
+
|
||
+#ifdef CONFIG_PLAT_MAPPI
|
||
+ outb_p(E8390_NODMA + E8390_PAGE1 + E8390_STOP,
|
||
+ ioaddr + E8390_CMD); /* 0x61 */
|
||
+ for (i = 0; i < ETHER_ADDR_LEN; i++) {
|
||
+ dev->dev_addr[i] = SA_prom[i] = inb_p(ioaddr + EN1_PHYS_SHIFT(i));
|
||
+ printk(" %2.2x", SA_prom[i]);
|
||
+ }
|
||
+#else
|
||
+ for (i = 0; i < ETHER_ADDR_LEN; i++) {
|
||
+ printk(" %2.2x", SA_prom[i]);
|
||
+ dev->dev_addr[i] = SA_prom[i];
|
||
+ }
|
||
+#endif
|
||
+
|
||
+ printk("\n%s: %s found at %#x, using IRQ %d.\n",
|
||
+ dev->name, name, ioaddr, dev->irq);
|
||
+
|
||
+ ei_status.name = name;
|
||
+ ei_status.tx_start_page = start_page;
|
||
+ ei_status.stop_page = stop_page;
|
||
+
|
||
+ /* Use 16-bit mode only if this wasn't overridden by DCR_VAL */
|
||
+ ei_status.word16 = (wordlength == 2 && (DCR_VAL & 0x01));
|
||
+
|
||
+ ei_status.rx_start_page = start_page + TX_PAGES;
|
||
+#ifdef PACKETBUF_MEMSIZE
|
||
+ /* Allow the packet buffer size to be overridden by know-it-alls. */
|
||
+ ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE;
|
||
+#endif
|
||
+
|
||
+ ei_status.reset_8390 = &ne_reset_8390;
|
||
+ ei_status.block_input = &ne_block_input;
|
||
+ ei_status.block_output = &ne_block_output;
|
||
+ ei_status.get_8390_hdr = &ne_get_8390_hdr;
|
||
+ ei_status.priv = 0;
|
||
+ dev->open = &ne_open;
|
||
+ dev->stop = &ne_close;
|
||
+#ifdef CONFIG_NET_POLL_CONTROLLER
|
||
+ dev->poll_controller = ei_poll;
|
||
+#endif
|
||
+ NS8390_init(dev, 0);
|
||
+
|
||
+ ret = register_netdev(dev);
|
||
+ if (ret)
|
||
+ goto out_irq;
|
||
+ return 0;
|
||
+
|
||
+out_irq:
|
||
+ free_irq(dev->irq, dev);
|
||
+err_out:
|
||
+ release_region(ioaddr, NE_IO_EXTENT);
|
||
+ return ret;
|
||
+}
|
||
+
|
||
+static int ne_open(struct net_device *dev)
|
||
+{
|
||
+ ei_open(dev);
|
||
+ return 0;
|
||
+}
|
||
+
|
||
+static int ne_close(struct net_device *dev)
|
||
+{
|
||
+ if (ei_debug > 1)
|
||
+ printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name);
|
||
+ ei_close(dev);
|
||
+ return 0;
|
||
+}
|
||
+
|
||
+/* Hard reset the card. This used to pause for the same period that a
|
||
+ 8390 reset command required, but that shouldn't be necessary. */
|
||
+
|
||
+static void ne_reset_8390(struct net_device *dev)
|
||
+{
|
||
+ unsigned long reset_start_time = jiffies;
|
||
+
|
||
+ if (ei_debug > 1)
|
||
+ printk(KERN_DEBUG "resetting the 8390 t=%ld...", jiffies);
|
||
+
|
||
+ /* DON'T change these to inb_p/outb_p or reset will fail on clones. */
|
||
+ outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET);
|
||
+
|
||
+ ei_status.txing = 0;
|
||
+ ei_status.dmaing = 0;
|
||
+
|
||
+ /* This check _should_not_ be necessary, omit eventually. */
|
||
+ while ((inb_p(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) {
|
||
+ if (time_after(jiffies, reset_start_time + 2*HZ/100)) {
|
||
+ printk(KERN_WARNING "%s: ne_reset_8390() did not complete.\n",
|
||
+ dev->name);
|
||
+ break;
|
||
+ }
|
||
+ }
|
||
+ outb_p(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */
|
||
+}
|
||
+
|
||
+/* Grab the 8390 specific header. Similar to the block_input routine, but
|
||
+ we don't need to be concerned with ring wrap as the header will be at
|
||
+ the start of a page, so we optimize accordingly. */
|
||
+
|
||
+static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
|
||
+{
|
||
+ int nic_base = dev->base_addr;
|
||
+
|
||
+ /* This *shouldn't* happen. If it does, it's the last thing you'll see */
|
||
+
|
||
+ if (ei_status.dmaing)
|
||
+ {
|
||
+ printk(KERN_EMERG "%s: DMAing conflict in ne_get_8390_hdr "
|
||
+ "[DMAstat:%d][irqlock:%d].\n",
|
||
+ dev->name, ei_status.dmaing, ei_status.irqlock);
|
||
+ return;
|
||
+ }
|
||
+
|
||
+ ei_status.dmaing |= 0x01;
|
||
+ outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
|
||
+ outb_p(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO);
|
||
+ outb_p(0, nic_base + EN0_RCNTHI);
|
||
+ outb_p(0, nic_base + EN0_RSARLO); /* On page boundary */
|
||
+ outb_p(ring_page, nic_base + EN0_RSARHI);
|
||
+ outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD);
|
||
+
|
||
+ if (ei_status.word16)
|
||
+ insw(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1);
|
||
+ else
|
||
+ insb(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr));
|
||
+
|
||
+ outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
|
||
+ ei_status.dmaing &= ~0x01;
|
||
+
|
||
+ le16_to_cpus(&hdr->count);
|
||
+}
|
||
+
|
||
+/* Block input and output, similar to the Crynwr packet driver. If you
|
||
+ are porting to a new ethercard, look at the packet driver source for hints.
|
||
+ The NEx000 doesn't share the on-board packet memory -- you have to put
|
||
+ the packet out through the "remote DMA" dataport using outb. */
|
||
+
|
||
+static void ne_block_input(struct net_device *dev, int count,
|
||
+ struct sk_buff *skb, int ring_offset)
|
||
+{
|
||
+#ifdef NE_SANITY_CHECK
|
||
+ int xfer_count = count;
|
||
+#endif
|
||
+ int nic_base = dev->base_addr;
|
||
+ char *buf = skb->data;
|
||
+
|
||
+ /* This *shouldn't* happen. If it does, it's the last thing you'll see */
|
||
+ if (ei_status.dmaing) {
|
||
+ printk(KERN_EMERG "%s: DMAing conflict in ne_block_input "
|
||
+ "[DMAstat:%d][irqlock:%d].\n",
|
||
+ dev->name, ei_status.dmaing, ei_status.irqlock);
|
||
+ return;
|
||
+ }
|
||
+ ei_status.dmaing |= 0x01;
|
||
+ outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
|
||
+ outb_p(count & 0xff, nic_base + EN0_RCNTLO);
|
||
+ outb_p(count >> 8, nic_base + EN0_RCNTHI);
|
||
+ outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO);
|
||
+ outb_p(ring_offset >> 8, nic_base + EN0_RSARHI);
|
||
+ outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD);
|
||
+
|
||
+ if (ei_status.word16) {
|
||
+ insw(NE_BASE + NE_DATAPORT,buf,count>>1);
|
||
+ if (count & 0x01) {
|
||
+ buf[count-1] = inb(NE_BASE + NE_DATAPORT);
|
||
+#ifdef NE_SANITY_CHECK
|
||
+ xfer_count++;
|
||
+#endif
|
||
+ }
|
||
+ } else {
|
||
+ insb(NE_BASE + NE_DATAPORT, buf, count);
|
||
+ }
|
||
+
|
||
+#ifdef NE_SANITY_CHECK
|
||
+ /* This was for the ALPHA version only, but enough people have
|
||
+ been encountering problems so it is still here. If you see
|
||
+ this message you either 1) have a slightly incompatible clone
|
||
+ or 2) have noise/speed problems with your bus. */
|
||
+
|
||
+ if (ei_debug > 1) {
|
||
+ /* DMA termination address check... */
|
||
+ int addr, tries = 20;
|
||
+ do {
|
||
+ /* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here
|
||
+ -- it's broken for Rx on some cards! */
|
||
+ int high = inb_p(nic_base + EN0_RSARHI);
|
||
+ int low = inb_p(nic_base + EN0_RSARLO);
|
||
+ addr = (high << 8) + low;
|
||
+ if (((ring_offset + xfer_count) & 0xff) == low)
|
||
+ break;
|
||
+ } while (--tries > 0);
|
||
+ if (tries <= 0)
|
||
+ printk(KERN_WARNING "%s: RX transfer address mismatch,"
|
||
+ "%#4.4x (expected) vs. %#4.4x (actual).\n",
|
||
+ dev->name, ring_offset + xfer_count, addr);
|
||
+ }
|
||
+#endif
|
||
+ outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
|
||
+ ei_status.dmaing &= ~0x01;
|
||
+}
|
||
+
|
||
+static void ne_block_output(struct net_device *dev, int count,
|
||
+ const unsigned char *buf, const int start_page)
|
||
+{
|
||
+ int nic_base = NE_BASE;
|
||
+ unsigned long dma_start;
|
||
+#ifdef NE_SANITY_CHECK
|
||
+ int retries = 0;
|
||
+#endif
|
||
+
|
||
+ /* Round the count up for word writes. Do we need to do this?
|
||
+ What effect will an odd byte count have on the 8390?
|
||
+ I should check someday. */
|
||
+
|
||
+ if (ei_status.word16 && (count & 0x01))
|
||
+ count++;
|
||
+
|
||
+ /* This *shouldn't* happen. If it does, it's the last thing you'll see */
|
||
+ if (ei_status.dmaing) {
|
||
+ printk(KERN_EMERG "%s: DMAing conflict in ne_block_output."
|
||
+ "[DMAstat:%d][irqlock:%d]\n",
|
||
+ dev->name, ei_status.dmaing, ei_status.irqlock);
|
||
+ return;
|
||
+ }
|
||
+ ei_status.dmaing |= 0x01;
|
||
+ /* We should already be in page 0, but to be safe... */
|
||
+ outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD);
|
||
+
|
||
+#ifdef NE_SANITY_CHECK
|
||
+retry:
|
||
+#endif
|
||
+
|
||
+#ifdef NE8390_RW_BUGFIX
|
||
+ /* Handle the read-before-write bug the same way as the
|
||
+ Crynwr packet driver -- the NatSemi method doesn't work.
|
||
+ Actually this doesn't always work either, but if you have
|
||
+ problems with your NEx000 this is better than nothing! */
|
||
+
|
||
+ outb_p(0x42, nic_base + EN0_RCNTLO);
|
||
+ outb_p(0x00, nic_base + EN0_RCNTHI);
|
||
+ outb_p(0x42, nic_base + EN0_RSARLO);
|
||
+ outb_p(0x00, nic_base + EN0_RSARHI);
|
||
+ outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD);
|
||
+ /* Make certain that the dummy read has occurred. */
|
||
+ udelay(6);
|
||
+#endif
|
||
+
|
||
+ outb_p(ENISR_RDC, nic_base + EN0_ISR);
|
||
+
|
||
+ /* Now the normal output. */
|
||
+ outb_p(count & 0xff, nic_base + EN0_RCNTLO);
|
||
+ outb_p(count >> 8, nic_base + EN0_RCNTHI);
|
||
+ outb_p(0x00, nic_base + EN0_RSARLO);
|
||
+ outb_p(start_page, nic_base + EN0_RSARHI);
|
||
+
|
||
+ outb_p(E8390_RWRITE+E8390_START, nic_base + NE_CMD);
|
||
+ if (ei_status.word16)
|
||
+ outsw(NE_BASE + NE_DATAPORT, buf, count>>1);
|
||
+ else
|
||
+ outsb(NE_BASE + NE_DATAPORT, buf, count);
|
||
+
|
||
+ dma_start = jiffies;
|
||
+
|
||
+#ifdef NE_SANITY_CHECK
|
||
+ /* This was for the ALPHA version only, but enough people have
|
||
+ been encountering problems so it is still here. */
|
||
+
|
||
+ if (ei_debug > 1) {
|
||
+ /* DMA termination address check... */
|
||
+ int addr, tries = 20;
|
||
+ do {
|
||
+ int high = inb_p(nic_base + EN0_RSARHI);
|
||
+ int low = inb_p(nic_base + EN0_RSARLO);
|
||
+ addr = (high << 8) + low;
|
||
+ if ((start_page << 8) + count == addr)
|
||
+ break;
|
||
+ } while (--tries > 0);
|
||
+
|
||
+ if (tries <= 0) {
|
||
+ printk(KERN_WARNING "%s: Tx packet transfer address mismatch,"
|
||
+ "%#4.4x (expected) vs. %#4.4x (actual).\n",
|
||
+ dev->name, (start_page << 8) + count, addr);
|
||
+ if (retries++ == 0)
|
||
+ goto retry;
|
||
+ }
|
||
+ }
|
||
+#endif
|
||
+
|
||
+ while ((inb_p(nic_base + EN0_ISR) & ENISR_RDC) == 0) {
|
||
+ if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */
|
||
+ printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name);
|
||
+ ne_reset_8390(dev);
|
||
+ NS8390_init(dev, 1);
|
||
+ break;
|
||
+ }
|
||
+ }
|
||
+
|
||
+ outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */
|
||
+ ei_status.dmaing &= ~0x01;
|
||
+ return;
|
||
+}
|
||
+
|
||
+
|
||
+#ifdef MODULE
|
||
+#define MAX_NE_CARDS 4 /* Max number of NE cards per module */
|
||
+static struct net_device *dev_ne[MAX_NE_CARDS];
|
||
+static int io[MAX_NE_CARDS];
|
||
+static int irq[MAX_NE_CARDS];
|
||
+static int bad[MAX_NE_CARDS]; /* 0xbad = bad sig or no reset ack */
|
||
+
|
||
+module_param_array(io, int, NULL, 0);
|
||
+module_param_array(irq, int, NULL, 0);
|
||
+module_param_array(bad, int, NULL, 0);
|
||
+module_param(use_poll, int, 0);
|
||
+MODULE_PARM_DESC(io, "I/O base address(es),required");
|
||
+MODULE_PARM_DESC(irq, "IRQ number(s)");
|
||
+MODULE_PARM_DESC(bad, "Accept card(s) with bad signatures");
|
||
+MODULE_PARM_DESC(use_poll, "Use timer interrupt to poll driver");
|
||
+MODULE_DESCRIPTION("NE1000/NE2000 ISA/PnP Ethernet driver");
|
||
+MODULE_LICENSE("GPL");
|
||
+
|
||
+/* This is set up so that no ISA autoprobe takes place. We can't guarantee
|
||
+that the ne2k probe is the last 8390 based probe to take place (as it
|
||
+is at boot) and so the probe will get confused by any other 8390 cards.
|
||
+ISA device autoprobes on a running machine are not recommended anyway. */
|
||
+
|
||
+int __init init_module(void)
|
||
+{
|
||
+ int this_dev, found = 0;
|
||
+
|
||
+ for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) {
|
||
+ struct net_device *dev = alloc_ei_netdev();
|
||
+ if (!dev)
|
||
+ break;
|
||
+ dev->irq = irq[this_dev];
|
||
+ dev->mem_end = bad[this_dev];
|
||
+ dev->base_addr = io[this_dev];
|
||
+ if (do_ne_probe(dev) == 0) {
|
||
+ dev_ne[found++] = dev;
|
||
+ continue;
|
||
+ }
|
||
+ free_netdev(dev);
|
||
+ if (found)
|
||
+ break;
|
||
+ if (io[this_dev] != 0)
|
||
+ printk(KERN_WARNING "atari_ethernec.c: No NE*000 card found at i/o = %#x\n", io[this_dev]);
|
||
+ else
|
||
+ printk(KERN_NOTICE "atari_ethernec.c: You must supply \"io=0xNNN\" value(s) for ISA cards.\n");
|
||
+ return -ENXIO;
|
||
+ }
|
||
+ if (found)
|
||
+ return 0;
|
||
+ return -ENODEV;
|
||
+}
|
||
+
|
||
+static void cleanup_card(struct net_device *dev)
|
||
+{
|
||
+ struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv;
|
||
+ if (idev)
|
||
+ pnp_device_detach(idev);
|
||
+ free_irq(dev->irq, dev);
|
||
+ release_region(dev->base_addr, NE_IO_EXTENT);
|
||
+}
|
||
+
|
||
+void cleanup_module(void)
|
||
+{
|
||
+ int this_dev;
|
||
+
|
||
+ for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) {
|
||
+ struct net_device *dev = dev_ne[this_dev];
|
||
+ if (dev) {
|
||
+ if (use_poll)
|
||
+ atari_ethernec_stop_poll(dev);
|
||
+ unregister_netdev(dev);
|
||
+ cleanup_card(dev);
|
||
+ free_netdev(dev);
|
||
+ }
|
||
+ }
|
||
+}
|
||
+#endif /* MODULE */
|