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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/net/appletalk
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Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/net/appletalk')
-rw-r--r--drivers/net/appletalk/Kconfig98
-rw-r--r--drivers/net/appletalk/Makefile7
-rw-r--r--drivers/net/appletalk/cops.c1059
-rw-r--r--drivers/net/appletalk/cops.h60
-rw-r--r--drivers/net/appletalk/cops_ffdrv.h533
-rw-r--r--drivers/net/appletalk/cops_ltdrv.h242
-rw-r--r--drivers/net/appletalk/ipddp.c317
-rw-r--r--drivers/net/appletalk/ipddp.h27
-rw-r--r--drivers/net/appletalk/ltpc.c1313
-rw-r--r--drivers/net/appletalk/ltpc.h73
10 files changed, 3729 insertions, 0 deletions
diff --git a/drivers/net/appletalk/Kconfig b/drivers/net/appletalk/Kconfig
new file mode 100644
index 000000000000..60b19679ca5c
--- /dev/null
+++ b/drivers/net/appletalk/Kconfig
@@ -0,0 +1,98 @@
+#
+# Appletalk driver configuration
+#
+config DEV_APPLETALK
+ bool "Appletalk interfaces support"
+ depends on ATALK
+ help
+ AppleTalk is the protocol that Apple computers can use to communicate
+ on a network. If your Linux box is connected to such a network, and wish
+ to do IP over it, or you have a LocalTalk card and wish to use it to
+ connect to the AppleTalk network, say Y.
+
+
+config LTPC
+ tristate "Apple/Farallon LocalTalk PC support"
+ depends on DEV_APPLETALK && (ISA || EISA)
+ help
+ This allows you to use the AppleTalk PC card to connect to LocalTalk
+ networks. The card is also known as the Farallon PhoneNet PC card.
+ If you are in doubt, this card is the one with the 65C02 chip on it.
+ You also need version 1.3.3 or later of the netatalk package.
+ This driver is experimental, which means that it may not work.
+ See the file <file:Documentation/networking/ltpc.txt>.
+
+config COPS
+ tristate "COPS LocalTalk PC support"
+ depends on DEV_APPLETALK && (ISA || EISA)
+ help
+ This allows you to use COPS AppleTalk cards to connect to LocalTalk
+ networks. You also need version 1.3.3 or later of the netatalk
+ package. This driver is experimental, which means that it may not
+ work. This driver will only work if you choose "AppleTalk DDP"
+ networking support, above.
+ Please read the file <file:Documentation/networking/cops.txt>.
+
+config COPS_DAYNA
+ bool "Dayna firmware support"
+ depends on COPS
+ help
+ Support COPS compatible cards with Dayna style firmware (Dayna
+ DL2000/ Daynatalk/PC (half length), COPS LT-95, Farallon PhoneNET PC
+ III, Farallon PhoneNET PC II).
+
+config COPS_TANGENT
+ bool "Tangent firmware support"
+ depends on COPS
+ help
+ Support COPS compatible cards with Tangent style firmware (Tangent
+ ATB_II, Novell NL-1000, Daystar Digital LT-200.
+
+config IPDDP
+ tristate "Appletalk-IP driver support"
+ depends on DEV_APPLETALK && ATALK
+ ---help---
+ This allows IP networking for users who only have AppleTalk
+ networking available. This feature is experimental. With this
+ driver, you can encapsulate IP inside AppleTalk (e.g. if your Linux
+ box is stuck on an AppleTalk only network) or decapsulate (e.g. if
+ you want your Linux box to act as an Internet gateway for a zoo of
+ AppleTalk connected Macs). Please see the file
+ <file:Documentation/networking/ipddp.txt> for more information.
+
+ If you say Y here, the AppleTalk-IP support will be compiled into
+ the kernel. In this case, you can either use encapsulation or
+ decapsulation, but not both. With the following two questions, you
+ decide which one you want.
+
+ To compile the AppleTalk-IP support as a module, choose M here: the
+ module will be called ipddp.
+ In this case, you will be able to use both encapsulation and
+ decapsulation simultaneously, by loading two copies of the module
+ and specifying different values for the module option ipddp_mode.
+
+config IPDDP_ENCAP
+ bool "IP to Appletalk-IP Encapsulation support"
+ depends on IPDDP
+ help
+ If you say Y here, the AppleTalk-IP code will be able to encapsulate
+ IP packets inside AppleTalk frames; this is useful if your Linux box
+ is stuck on an AppleTalk network (which hopefully contains a
+ decapsulator somewhere). Please see
+ <file:Documentation/networking/ipddp.txt> for more information. If
+ you said Y to "AppleTalk-IP driver support" above and you say Y
+ here, then you cannot say Y to "AppleTalk-IP to IP Decapsulation
+ support", below.
+
+config IPDDP_DECAP
+ bool "Appletalk-IP to IP Decapsulation support"
+ depends on IPDDP
+ help
+ If you say Y here, the AppleTalk-IP code will be able to decapsulate
+ AppleTalk-IP frames to IP packets; this is useful if you want your
+ Linux box to act as an Internet gateway for an AppleTalk network.
+ Please see <file:Documentation/networking/ipddp.txt> for more
+ information. If you said Y to "AppleTalk-IP driver support" above
+ and you say Y here, then you cannot say Y to "IP to AppleTalk-IP
+ Encapsulation support", above.
+
diff --git a/drivers/net/appletalk/Makefile b/drivers/net/appletalk/Makefile
new file mode 100644
index 000000000000..6cfc705f7c5c
--- /dev/null
+++ b/drivers/net/appletalk/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for drivers/net/appletalk
+#
+
+obj-$(CONFIG_IPDDP) += ipddp.o
+obj-$(CONFIG_COPS) += cops.o
+obj-$(CONFIG_LTPC) += ltpc.o
diff --git a/drivers/net/appletalk/cops.c b/drivers/net/appletalk/cops.c
new file mode 100644
index 000000000000..2161c2d585f0
--- /dev/null
+++ b/drivers/net/appletalk/cops.c
@@ -0,0 +1,1059 @@
+/* cops.c: LocalTalk driver for Linux.
+ *
+ * Authors:
+ * - Jay Schulist <jschlst@samba.org>
+ *
+ * With more than a little help from;
+ * - Alan Cox <Alan.Cox@linux.org>
+ *
+ * Derived from:
+ * - skeleton.c: A network driver outline for linux.
+ * Written 1993-94 by Donald Becker.
+ * - ltpc.c: A driver for the LocalTalk PC card.
+ * Written by Bradford W. Johnson.
+ *
+ * Copyright 1993 United States Government as represented by the
+ * Director, National Security Agency.
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ * Changes:
+ * 19970608 Alan Cox Allowed dual card type support
+ * Can set board type in insmod
+ * Hooks for cops_setup routine
+ * (not yet implemented).
+ * 19971101 Jay Schulist Fixes for multiple lt* devices.
+ * 19980607 Steven Hirsch Fixed the badly broken support
+ * for Tangent type cards. Only
+ * tested on Daystar LT200. Some
+ * cleanup of formatting and program
+ * logic. Added emacs 'local-vars'
+ * setup for Jay's brace style.
+ * 20000211 Alan Cox Cleaned up for softnet
+ */
+
+static const char *version =
+"cops.c:v0.04 6/7/98 Jay Schulist <jschlst@samba.org>\n";
+/*
+ * Sources:
+ * COPS Localtalk SDK. This provides almost all of the information
+ * needed.
+ */
+
+/*
+ * insmod/modprobe configurable stuff.
+ * - IO Port, choose one your card supports or 0 if you dare.
+ * - IRQ, also choose one your card supports or nothing and let
+ * the driver figure it out.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/in.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/if_arp.h>
+#include <linux/if_ltalk.h> /* For ltalk_setup() */
+#include <linux/delay.h> /* For udelay() */
+#include <linux/atalk.h>
+#include <linux/spinlock.h>
+#include <linux/bitops.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+
+#include "cops.h" /* Our Stuff */
+#include "cops_ltdrv.h" /* Firmware code for Tangent type cards. */
+#include "cops_ffdrv.h" /* Firmware code for Dayna type cards. */
+
+/*
+ * The name of the card. Is used for messages and in the requests for
+ * io regions, irqs and dma channels
+ */
+
+static const char *cardname = "cops";
+
+#ifdef CONFIG_COPS_DAYNA
+static int board_type = DAYNA; /* Module exported */
+#else
+static int board_type = TANGENT;
+#endif
+
+static int io = 0x240; /* Default IO for Dayna */
+static int irq = 5; /* Default IRQ */
+
+/*
+ * COPS Autoprobe information.
+ * Right now if port address is right but IRQ is not 5 this will
+ * return a 5 no matter what since we will still get a status response.
+ * Need one more additional check to narrow down after we have gotten
+ * the ioaddr. But since only other possible IRQs is 3 and 4 so no real
+ * hurry on this. I *STRONGLY* recommend using IRQ 5 for your card with
+ * this driver.
+ *
+ * This driver has 2 modes and they are: Dayna mode and Tangent mode.
+ * Each mode corresponds with the type of card. It has been found
+ * that there are 2 main types of cards and all other cards are
+ * the same and just have different names or only have minor differences
+ * such as more IO ports. As this driver is tested it will
+ * become more clear on exactly what cards are supported. The driver
+ * defaults to using Dayna mode. To change the drivers mode, simply
+ * select Dayna or Tangent mode when configuring the kernel.
+ *
+ * This driver should support:
+ * TANGENT driver mode:
+ * Tangent ATB-II, Novell NL-1000, Daystar Digital LT-200,
+ * COPS LT-1
+ * DAYNA driver mode:
+ * Dayna DL2000/DaynaTalk PC (Half Length), COPS LT-95,
+ * Farallon PhoneNET PC III, Farallon PhoneNET PC II
+ * Other cards possibly supported mode unkown though:
+ * Dayna DL2000 (Full length), COPS LT/M (Micro-Channel)
+ *
+ * Cards NOT supported by this driver but supported by the ltpc.c
+ * driver written by Bradford W. Johnson <johns393@maroon.tc.umn.edu>
+ * Farallon PhoneNET PC
+ * Original Apple LocalTalk PC card
+ *
+ * N.B.
+ *
+ * The Daystar Digital LT200 boards do not support interrupt-driven
+ * IO. You must specify 'irq=0xff' as a module parameter to invoke
+ * polled mode. I also believe that the port probing logic is quite
+ * dangerous at best and certainly hopeless for a polled card. Best to
+ * specify both. - Steve H.
+ *
+ */
+
+/*
+ * Zero terminated list of IO ports to probe.
+ */
+
+static unsigned int ports[] = {
+ 0x240, 0x340, 0x200, 0x210, 0x220, 0x230, 0x260,
+ 0x2A0, 0x300, 0x310, 0x320, 0x330, 0x350, 0x360,
+ 0
+};
+
+/*
+ * Zero terminated list of IRQ ports to probe.
+ */
+
+static int cops_irqlist[] = {
+ 5, 4, 3, 0
+};
+
+static struct timer_list cops_timer;
+
+/* use 0 for production, 1 for verification, 2 for debug, 3 for verbose debug */
+#ifndef COPS_DEBUG
+#define COPS_DEBUG 1
+#endif
+static unsigned int cops_debug = COPS_DEBUG;
+
+/* The number of low I/O ports used by the card. */
+#define COPS_IO_EXTENT 8
+
+/* Information that needs to be kept for each board. */
+
+struct cops_local
+{
+ struct net_device_stats stats;
+ int board; /* Holds what board type is. */
+ int nodeid; /* Set to 1 once have nodeid. */
+ unsigned char node_acquire; /* Node ID when acquired. */
+ struct atalk_addr node_addr; /* Full node address */
+ spinlock_t lock; /* RX/TX lock */
+};
+
+/* Index to functions, as function prototypes. */
+static int cops_probe1 (struct net_device *dev, int ioaddr);
+static int cops_irq (int ioaddr, int board);
+
+static int cops_open (struct net_device *dev);
+static int cops_jumpstart (struct net_device *dev);
+static void cops_reset (struct net_device *dev, int sleep);
+static void cops_load (struct net_device *dev);
+static int cops_nodeid (struct net_device *dev, int nodeid);
+
+static irqreturn_t cops_interrupt (int irq, void *dev_id, struct pt_regs *regs);
+static void cops_poll (unsigned long ltdev);
+static void cops_timeout(struct net_device *dev);
+static void cops_rx (struct net_device *dev);
+static int cops_send_packet (struct sk_buff *skb, struct net_device *dev);
+static void set_multicast_list (struct net_device *dev);
+static int cops_hard_header (struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, void *daddr, void *saddr,
+ unsigned len);
+
+static int cops_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
+static int cops_close (struct net_device *dev);
+static struct net_device_stats *cops_get_stats (struct net_device *dev);
+
+static void cleanup_card(struct net_device *dev)
+{
+ if (dev->irq)
+ free_irq(dev->irq, dev);
+ release_region(dev->base_addr, COPS_IO_EXTENT);
+}
+
+/*
+ * Check for a network adaptor of this type, and return '0' iff one exists.
+ * If dev->base_addr == 0, probe all likely locations.
+ * If dev->base_addr in [1..0x1ff], always return failure.
+ * otherwise go with what we pass in.
+ */
+struct net_device * __init cops_probe(int unit)
+{
+ struct net_device *dev;
+ unsigned *port;
+ int base_addr;
+ int err = 0;
+
+ dev = alloc_netdev(sizeof(struct cops_local), "lt%d", ltalk_setup);
+ if (!dev)
+ return ERR_PTR(-ENOMEM);
+
+ if (unit >= 0) {
+ sprintf(dev->name, "lt%d", unit);
+ netdev_boot_setup_check(dev);
+ irq = dev->irq;
+ base_addr = dev->base_addr;
+ } else {
+ base_addr = dev->base_addr = io;
+ }
+
+ SET_MODULE_OWNER(dev);
+
+ if (base_addr > 0x1ff) { /* Check a single specified location. */
+ err = cops_probe1(dev, base_addr);
+ } else if (base_addr != 0) { /* Don't probe at all. */
+ err = -ENXIO;
+ } else {
+ /* FIXME Does this really work for cards which generate irq?
+ * It's definitely N.G. for polled Tangent. sh
+ * Dayna cards don't autoprobe well at all, but if your card is
+ * at IRQ 5 & IO 0x240 we find it every time. ;) JS
+ */
+ for (port = ports; *port && cops_probe1(dev, *port) < 0; port++)
+ ;
+ if (!*port)
+ err = -ENODEV;
+ }
+ if (err)
+ goto out;
+ err = register_netdev(dev);
+ if (err)
+ goto out1;
+ return dev;
+out1:
+ cleanup_card(dev);
+out:
+ free_netdev(dev);
+ return ERR_PTR(err);
+}
+
+/*
+ * This is the real probe routine. Linux has a history of friendly device
+ * probes on the ISA bus. A good device probes avoids doing writes, and
+ * verifies that the correct device exists and functions.
+ */
+static int __init cops_probe1(struct net_device *dev, int ioaddr)
+{
+ struct cops_local *lp;
+ static unsigned version_printed;
+ int board = board_type;
+ int retval;
+
+ if(cops_debug && version_printed++ == 0)
+ printk("%s", version);
+
+ /* Grab the region so no one else tries to probe our ioports. */
+ if (!request_region(ioaddr, COPS_IO_EXTENT, dev->name))
+ return -EBUSY;
+
+ /*
+ * Since this board has jumpered interrupts, allocate the interrupt
+ * vector now. There is no point in waiting since no other device
+ * can use the interrupt, and this marks the irq as busy. Jumpered
+ * interrupts are typically not reported by the boards, and we must
+ * used AutoIRQ to find them.
+ */
+ dev->irq = irq;
+ switch (dev->irq)
+ {
+ case 0:
+ /* COPS AutoIRQ routine */
+ dev->irq = cops_irq(ioaddr, board);
+ if (dev->irq)
+ break;
+ /* No IRQ found on this port, fallthrough */
+ case 1:
+ retval = -EINVAL;
+ goto err_out;
+
+ /* Fixup for users that don't know that IRQ 2 is really
+ * IRQ 9, or don't know which one to set.
+ */
+ case 2:
+ dev->irq = 9;
+ break;
+
+ /* Polled operation requested. Although irq of zero passed as
+ * a parameter tells the init routines to probe, we'll
+ * overload it to denote polled operation at runtime.
+ */
+ case 0xff:
+ dev->irq = 0;
+ break;
+
+ default:
+ break;
+ }
+
+ /* Reserve any actual interrupt. */
+ if (dev->irq) {
+ retval = request_irq(dev->irq, &cops_interrupt, 0, dev->name, dev);
+ if (retval)
+ goto err_out;
+ }
+
+ dev->base_addr = ioaddr;
+
+ lp = netdev_priv(dev);
+ memset(lp, 0, sizeof(struct cops_local));
+ spin_lock_init(&lp->lock);
+
+ /* Copy local board variable to lp struct. */
+ lp->board = board;
+
+ dev->hard_start_xmit = cops_send_packet;
+ dev->tx_timeout = cops_timeout;
+ dev->watchdog_timeo = HZ * 2;
+ dev->hard_header = cops_hard_header;
+ dev->get_stats = cops_get_stats;
+ dev->open = cops_open;
+ dev->stop = cops_close;
+ dev->do_ioctl = cops_ioctl;
+ dev->set_multicast_list = set_multicast_list;
+ dev->mc_list = NULL;
+
+ /* Tell the user where the card is and what mode we're in. */
+ if(board==DAYNA)
+ printk("%s: %s at %#3x, using IRQ %d, in Dayna mode.\n",
+ dev->name, cardname, ioaddr, dev->irq);
+ if(board==TANGENT) {
+ if(dev->irq)
+ printk("%s: %s at %#3x, IRQ %d, in Tangent mode\n",
+ dev->name, cardname, ioaddr, dev->irq);
+ else
+ printk("%s: %s at %#3x, using polled IO, in Tangent mode.\n",
+ dev->name, cardname, ioaddr);
+
+ }
+ return 0;
+
+err_out:
+ release_region(ioaddr, COPS_IO_EXTENT);
+ return retval;
+}
+
+static int __init cops_irq (int ioaddr, int board)
+{ /*
+ * This does not use the IRQ to determine where the IRQ is. We just
+ * assume that when we get a correct status response that it's the IRQ.
+ * This really just verifies the IO port but since we only have access
+ * to such a small number of IRQs (5, 4, 3) this is not bad.
+ * This will probably not work for more than one card.
+ */
+ int irqaddr=0;
+ int i, x, status;
+
+ if(board==DAYNA)
+ {
+ outb(0, ioaddr+DAYNA_RESET);
+ inb(ioaddr+DAYNA_RESET);
+ mdelay(333);
+ }
+ if(board==TANGENT)
+ {
+ inb(ioaddr);
+ outb(0, ioaddr);
+ outb(0, ioaddr+TANG_RESET);
+ }
+
+ for(i=0; cops_irqlist[i] !=0; i++)
+ {
+ irqaddr = cops_irqlist[i];
+ for(x = 0xFFFF; x>0; x --) /* wait for response */
+ {
+ if(board==DAYNA)
+ {
+ status = (inb(ioaddr+DAYNA_CARD_STATUS)&3);
+ if(status == 1)
+ return irqaddr;
+ }
+ if(board==TANGENT)
+ {
+ if((inb(ioaddr+TANG_CARD_STATUS)& TANG_TX_READY) !=0)
+ return irqaddr;
+ }
+ }
+ }
+ return 0; /* no IRQ found */
+}
+
+/*
+ * Open/initialize the board. This is called (in the current kernel)
+ * sometime after booting when the 'ifconfig' program is run.
+ */
+static int cops_open(struct net_device *dev)
+{
+ struct cops_local *lp = netdev_priv(dev);
+
+ if(dev->irq==0)
+ {
+ /*
+ * I don't know if the Dayna-style boards support polled
+ * operation. For now, only allow it for Tangent.
+ */
+ if(lp->board==TANGENT) /* Poll 20 times per second */
+ {
+ init_timer(&cops_timer);
+ cops_timer.function = cops_poll;
+ cops_timer.data = (unsigned long)dev;
+ cops_timer.expires = jiffies + HZ/20;
+ add_timer(&cops_timer);
+ }
+ else
+ {
+ printk(KERN_WARNING "%s: No irq line set\n", dev->name);
+ return -EAGAIN;
+ }
+ }
+
+ cops_jumpstart(dev); /* Start the card up. */
+
+ netif_start_queue(dev);
+ return 0;
+}
+
+/*
+ * This allows for a dynamic start/restart of the entire card.
+ */
+static int cops_jumpstart(struct net_device *dev)
+{
+ struct cops_local *lp = netdev_priv(dev);
+
+ /*
+ * Once the card has the firmware loaded and has acquired
+ * the nodeid, if it is reset it will lose it all.
+ */
+ cops_reset(dev,1); /* Need to reset card before load firmware. */
+ cops_load(dev); /* Load the firmware. */
+
+ /*
+ * If atalkd already gave us a nodeid we will use that
+ * one again, else we wait for atalkd to give us a nodeid
+ * in cops_ioctl. This may cause a problem if someone steals
+ * our nodeid while we are resetting.
+ */
+ if(lp->nodeid == 1)
+ cops_nodeid(dev,lp->node_acquire);
+
+ return 0;
+}
+
+static void tangent_wait_reset(int ioaddr)
+{
+ int timeout=0;
+
+ while(timeout++ < 5 && (inb(ioaddr+TANG_CARD_STATUS)&TANG_TX_READY)==0)
+ mdelay(1); /* Wait 1 second */
+}
+
+/*
+ * Reset the LocalTalk board.
+ */
+static void cops_reset(struct net_device *dev, int sleep)
+{
+ struct cops_local *lp = netdev_priv(dev);
+ int ioaddr=dev->base_addr;
+
+ if(lp->board==TANGENT)
+ {
+ inb(ioaddr); /* Clear request latch. */
+ outb(0,ioaddr); /* Clear the TANG_TX_READY flop. */
+ outb(0, ioaddr+TANG_RESET); /* Reset the adapter. */
+
+ tangent_wait_reset(ioaddr);
+ outb(0, ioaddr+TANG_CLEAR_INT);
+ }
+ if(lp->board==DAYNA)
+ {
+ outb(0, ioaddr+DAYNA_RESET); /* Assert the reset port */
+ inb(ioaddr+DAYNA_RESET); /* Clear the reset */
+ if(sleep)
+ {
+ long snap=jiffies;
+
+ /* Let card finish initializing, about 1/3 second */
+ while(jiffies-snap<HZ/3)
+ schedule();
+ }
+ else
+ mdelay(333);
+ }
+ netif_wake_queue(dev);
+ return;
+}
+
+static void cops_load (struct net_device *dev)
+{
+ struct ifreq ifr;
+ struct ltfirmware *ltf= (struct ltfirmware *)&ifr.ifr_ifru;
+ struct cops_local *lp = netdev_priv(dev);
+ int ioaddr=dev->base_addr;
+ int length, i = 0;
+
+ strcpy(ifr.ifr_name,"lt0");
+
+ /* Get card's firmware code and do some checks on it. */
+#ifdef CONFIG_COPS_DAYNA
+ if(lp->board==DAYNA)
+ {
+ ltf->length=sizeof(ffdrv_code);
+ ltf->data=ffdrv_code;
+ }
+ else
+#endif
+#ifdef CONFIG_COPS_TANGENT
+ if(lp->board==TANGENT)
+ {
+ ltf->length=sizeof(ltdrv_code);
+ ltf->data=ltdrv_code;
+ }
+ else
+#endif
+ {
+ printk(KERN_INFO "%s; unsupported board type.\n", dev->name);
+ return;
+ }
+
+ /* Check to make sure firmware is correct length. */
+ if(lp->board==DAYNA && ltf->length!=5983)
+ {
+ printk(KERN_WARNING "%s: Firmware is not length of FFDRV.BIN.\n", dev->name);
+ return;
+ }
+ if(lp->board==TANGENT && ltf->length!=2501)
+ {
+ printk(KERN_WARNING "%s: Firmware is not length of DRVCODE.BIN.\n", dev->name);
+ return;
+ }
+
+ if(lp->board==DAYNA)
+ {
+ /*
+ * We must wait for a status response
+ * with the DAYNA board.
+ */
+ while(++i<65536)
+ {
+ if((inb(ioaddr+DAYNA_CARD_STATUS)&3)==1)
+ break;
+ }
+
+ if(i==65536)
+ return;
+ }
+
+ /*
+ * Upload the firmware and kick. Byte-by-byte works nicely here.
+ */
+ i=0;
+ length = ltf->length;
+ while(length--)
+ {
+ outb(ltf->data[i], ioaddr);
+ i++;
+ }
+
+ if(cops_debug > 1)
+ printk("%s: Uploaded firmware - %d bytes of %d bytes.\n",
+ dev->name, i, ltf->length);
+
+ if(lp->board==DAYNA) /* Tell Dayna to run the firmware code. */
+ outb(1, ioaddr+DAYNA_INT_CARD);
+ else /* Tell Tang to run the firmware code. */
+ inb(ioaddr);
+
+ if(lp->board==TANGENT)
+ {
+ tangent_wait_reset(ioaddr);
+ inb(ioaddr); /* Clear initial ready signal. */
+ }
+
+ return;
+}
+
+/*
+ * Get the LocalTalk Nodeid from the card. We can suggest
+ * any nodeid 1-254. The card will try and get that exact
+ * address else we can specify 0 as the nodeid and the card
+ * will autoprobe for a nodeid.
+ */
+static int cops_nodeid (struct net_device *dev, int nodeid)
+{
+ struct cops_local *lp = netdev_priv(dev);
+ int ioaddr = dev->base_addr;
+
+ if(lp->board == DAYNA)
+ {
+ /* Empty any pending adapter responses. */
+ while((inb(ioaddr+DAYNA_CARD_STATUS)&DAYNA_TX_READY)==0)
+ {
+ outb(0, ioaddr+COPS_CLEAR_INT); /* Clear interrupts. */
+ if((inb(ioaddr+DAYNA_CARD_STATUS)&0x03)==DAYNA_RX_REQUEST)
+ cops_rx(dev); /* Kick any packets waiting. */
+ schedule();
+ }
+
+ outb(2, ioaddr); /* Output command packet length as 2. */
+ outb(0, ioaddr);
+ outb(LAP_INIT, ioaddr); /* Send LAP_INIT command byte. */
+ outb(nodeid, ioaddr); /* Suggest node address. */
+ }
+
+ if(lp->board == TANGENT)
+ {
+ /* Empty any pending adapter responses. */
+ while(inb(ioaddr+TANG_CARD_STATUS)&TANG_RX_READY)
+ {
+ outb(0, ioaddr+COPS_CLEAR_INT); /* Clear interrupt. */
+ cops_rx(dev); /* Kick out packets waiting. */
+ schedule();
+ }
+
+ /* Not sure what Tangent does if nodeid picked is used. */
+ if(nodeid == 0) /* Seed. */
+ nodeid = jiffies&0xFF; /* Get a random try */
+ outb(2, ioaddr); /* Command length LSB */
+ outb(0, ioaddr); /* Command length MSB */
+ outb(LAP_INIT, ioaddr); /* Send LAP_INIT byte */
+ outb(nodeid, ioaddr); /* LAP address hint. */
+ outb(0xFF, ioaddr); /* Int. level to use */
+ }
+
+ lp->node_acquire=0; /* Set nodeid holder to 0. */
+ while(lp->node_acquire==0) /* Get *True* nodeid finally. */
+ {
+ outb(0, ioaddr+COPS_CLEAR_INT); /* Clear any interrupt. */
+
+ if(lp->board == DAYNA)
+ {
+ if((inb(ioaddr+DAYNA_CARD_STATUS)&0x03)==DAYNA_RX_REQUEST)
+ cops_rx(dev); /* Grab the nodeid put in lp->node_acquire. */
+ }
+ if(lp->board == TANGENT)
+ {
+ if(inb(ioaddr+TANG_CARD_STATUS)&TANG_RX_READY)
+ cops_rx(dev); /* Grab the nodeid put in lp->node_acquire. */
+ }
+ schedule();
+ }
+
+ if(cops_debug > 1)
+ printk(KERN_DEBUG "%s: Node ID %d has been acquired.\n",
+ dev->name, lp->node_acquire);
+
+ lp->nodeid=1; /* Set got nodeid to 1. */
+
+ return 0;
+}
+
+/*
+ * Poll the Tangent type cards to see if we have work.
+ */
+
+static void cops_poll(unsigned long ltdev)
+{
+ int ioaddr, status;
+ int boguscount = 0;
+
+ struct net_device *dev = (struct net_device *)ltdev;
+
+ del_timer(&cops_timer);
+
+ if(dev == NULL)
+ return; /* We've been downed */
+
+ ioaddr = dev->base_addr;
+ do {
+ status=inb(ioaddr+TANG_CARD_STATUS);
+ if(status & TANG_RX_READY)
+ cops_rx(dev);
+ if(status & TANG_TX_READY)
+ netif_wake_queue(dev);
+ status = inb(ioaddr+TANG_CARD_STATUS);
+ } while((++boguscount < 20) && (status&(TANG_RX_READY|TANG_TX_READY)));
+
+ /* poll 20 times per second */
+ cops_timer.expires = jiffies + HZ/20;
+ add_timer(&cops_timer);
+
+ return;
+}
+
+/*
+ * The typical workload of the driver:
+ * Handle the network interface interrupts.
+ */
+static irqreturn_t cops_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+{
+ struct net_device *dev = dev_id;
+ struct cops_local *lp;
+ int ioaddr, status;
+ int boguscount = 0;
+
+ ioaddr = dev->base_addr;
+ lp = netdev_priv(dev);
+
+ if(lp->board==DAYNA)
+ {
+ do {
+ outb(0, ioaddr + COPS_CLEAR_INT);
+ status=inb(ioaddr+DAYNA_CARD_STATUS);
+ if((status&0x03)==DAYNA_RX_REQUEST)
+ cops_rx(dev);
+ netif_wake_queue(dev);
+ } while(++boguscount < 20);
+ }
+ else
+ {
+ do {
+ status=inb(ioaddr+TANG_CARD_STATUS);
+ if(status & TANG_RX_READY)
+ cops_rx(dev);
+ if(status & TANG_TX_READY)
+ netif_wake_queue(dev);
+ status=inb(ioaddr+TANG_CARD_STATUS);
+ } while((++boguscount < 20) && (status&(TANG_RX_READY|TANG_TX_READY)));
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * We have a good packet(s), get it/them out of the buffers.
+ */
+static void cops_rx(struct net_device *dev)
+{
+ int pkt_len = 0;
+ int rsp_type = 0;
+ struct sk_buff *skb = NULL;
+ struct cops_local *lp = netdev_priv(dev);
+ int ioaddr = dev->base_addr;
+ int boguscount = 0;
+ unsigned long flags;
+
+
+ spin_lock_irqsave(&lp->lock, flags);
+
+ if(lp->board==DAYNA)
+ {
+ outb(0, ioaddr); /* Send out Zero length. */
+ outb(0, ioaddr);
+ outb(DATA_READ, ioaddr); /* Send read command out. */
+
+ /* Wait for DMA to turn around. */
+ while(++boguscount<1000000)
+ {
+ barrier();
+ if((inb(ioaddr+DAYNA_CARD_STATUS)&0x03)==DAYNA_RX_READY)
+ break;
+ }
+
+ if(boguscount==1000000)
+ {
+ printk(KERN_WARNING "%s: DMA timed out.\n",dev->name);
+ spin_unlock_irqrestore(&lp->lock, flags);
+ return;
+ }
+ }
+
+ /* Get response length. */
+ if(lp->board==DAYNA)
+ pkt_len = inb(ioaddr) & 0xFF;
+ else
+ pkt_len = inb(ioaddr) & 0x00FF;
+ pkt_len |= (inb(ioaddr) << 8);
+ /* Input IO code. */
+ rsp_type=inb(ioaddr);
+
+ /* Malloc up new buffer. */
+ skb = dev_alloc_skb(pkt_len);
+ if(skb == NULL)
+ {
+ printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n",
+ dev->name);
+ lp->stats.rx_dropped++;
+ while(pkt_len--) /* Discard packet */
+ inb(ioaddr);
+ spin_unlock_irqrestore(&lp->lock, flags);
+ return;
+ }
+ skb->dev = dev;
+ skb_put(skb, pkt_len);
+ skb->protocol = htons(ETH_P_LOCALTALK);
+
+ insb(ioaddr, skb->data, pkt_len); /* Eat the Data */
+
+ if(lp->board==DAYNA)
+ outb(1, ioaddr+DAYNA_INT_CARD); /* Interrupt the card */
+
+ spin_unlock_irqrestore(&lp->lock, flags); /* Restore interrupts. */
+
+ /* Check for bad response length */
+ if(pkt_len < 0 || pkt_len > MAX_LLAP_SIZE)
+ {
+ printk(KERN_WARNING "%s: Bad packet length of %d bytes.\n",
+ dev->name, pkt_len);
+ lp->stats.tx_errors++;
+ dev_kfree_skb_any(skb);
+ return;
+ }
+
+ /* Set nodeid and then get out. */
+ if(rsp_type == LAP_INIT_RSP)
+ { /* Nodeid taken from received packet. */
+ lp->node_acquire = skb->data[0];
+ dev_kfree_skb_any(skb);
+ return;
+ }
+
+ /* One last check to make sure we have a good packet. */
+ if(rsp_type != LAP_RESPONSE)
+ {
+ printk(KERN_WARNING "%s: Bad packet type %d.\n", dev->name, rsp_type);
+ lp->stats.tx_errors++;
+ dev_kfree_skb_any(skb);
+ return;
+ }
+
+ skb->mac.raw = skb->data; /* Point to entire packet. */
+ skb_pull(skb,3);
+ skb->h.raw = skb->data; /* Point to data (Skip header). */
+
+ /* Update the counters. */
+ lp->stats.rx_packets++;
+ lp->stats.rx_bytes += skb->len;
+
+ /* Send packet to a higher place. */
+ netif_rx(skb);
+ dev->last_rx = jiffies;
+}
+
+static void cops_timeout(struct net_device *dev)
+{
+ struct cops_local *lp = netdev_priv(dev);
+ int ioaddr = dev->base_addr;
+
+ lp->stats.tx_errors++;
+ if(lp->board==TANGENT)
+ {
+ if((inb(ioaddr+TANG_CARD_STATUS)&TANG_TX_READY)==0)
+ printk(KERN_WARNING "%s: No TX complete interrupt.\n", dev->name);
+ }
+ printk(KERN_WARNING "%s: Transmit timed out.\n", dev->name);
+ cops_jumpstart(dev); /* Restart the card. */
+ dev->trans_start = jiffies;
+ netif_wake_queue(dev);
+}
+
+
+/*
+ * Make the card transmit a LocalTalk packet.
+ */
+
+static int cops_send_packet(struct sk_buff *skb, struct net_device *dev)
+{
+ struct cops_local *lp = netdev_priv(dev);
+ int ioaddr = dev->base_addr;
+ unsigned long flags;
+
+ /*
+ * Block a timer-based transmit from overlapping.
+ */
+
+ netif_stop_queue(dev);
+
+ spin_lock_irqsave(&lp->lock, flags);
+ if(lp->board == DAYNA) /* Wait for adapter transmit buffer. */
+ while((inb(ioaddr+DAYNA_CARD_STATUS)&DAYNA_TX_READY)==0)
+ cpu_relax();
+ if(lp->board == TANGENT) /* Wait for adapter transmit buffer. */
+ while((inb(ioaddr+TANG_CARD_STATUS)&TANG_TX_READY)==0)
+ cpu_relax();
+
+ /* Output IO length. */
+ outb(skb->len, ioaddr);
+ if(lp->board == DAYNA)
+ outb(skb->len >> 8, ioaddr);
+ else
+ outb((skb->len >> 8)&0x0FF, ioaddr);
+
+ /* Output IO code. */
+ outb(LAP_WRITE, ioaddr);
+
+ if(lp->board == DAYNA) /* Check the transmit buffer again. */
+ while((inb(ioaddr+DAYNA_CARD_STATUS)&DAYNA_TX_READY)==0);
+
+ outsb(ioaddr, skb->data, skb->len); /* Send out the data. */
+
+ if(lp->board==DAYNA) /* Dayna requires you kick the card */
+ outb(1, ioaddr+DAYNA_INT_CARD);
+
+ spin_unlock_irqrestore(&lp->lock, flags); /* Restore interrupts. */
+
+ /* Done sending packet, update counters and cleanup. */
+ lp->stats.tx_packets++;
+ lp->stats.tx_bytes += skb->len;
+ dev->trans_start = jiffies;
+ dev_kfree_skb (skb);
+ return 0;
+}
+
+/*
+ * Dummy function to keep the Appletalk layer happy.
+ */
+
+static void set_multicast_list(struct net_device *dev)
+{
+ if(cops_debug >= 3)
+ printk("%s: set_multicast_list executed\n", dev->name);
+}
+
+/*
+ * Another Dummy function to keep the Appletalk layer happy.
+ */
+
+static int cops_hard_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, void *daddr, void *saddr,
+ unsigned len)
+{
+ if(cops_debug >= 3)
+ printk("%s: cops_hard_header executed. Wow!\n", dev->name);
+ return 0;
+}
+
+/*
+ * System ioctls for the COPS LocalTalk card.
+ */
+
+static int cops_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct cops_local *lp = netdev_priv(dev);
+ struct sockaddr_at *sa = (struct sockaddr_at *)&ifr->ifr_addr;
+ struct atalk_addr *aa = (struct atalk_addr *)&lp->node_addr;
+
+ switch(cmd)
+ {
+ case SIOCSIFADDR:
+ /* Get and set the nodeid and network # atalkd wants. */
+ cops_nodeid(dev, sa->sat_addr.s_node);
+ aa->s_net = sa->sat_addr.s_net;
+ aa->s_node = lp->node_acquire;
+
+ /* Set broardcast address. */
+ dev->broadcast[0] = 0xFF;
+
+ /* Set hardware address. */
+ dev->dev_addr[0] = aa->s_node;
+ dev->addr_len = 1;
+ return 0;
+
+ case SIOCGIFADDR:
+ sa->sat_addr.s_net = aa->s_net;
+ sa->sat_addr.s_node = aa->s_node;
+ return 0;
+
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+/*
+ * The inverse routine to cops_open().
+ */
+
+static int cops_close(struct net_device *dev)
+{
+ struct cops_local *lp = netdev_priv(dev);
+
+ /* If we were running polled, yank the timer.
+ */
+ if(lp->board==TANGENT && dev->irq==0)
+ del_timer(&cops_timer);
+
+ netif_stop_queue(dev);
+ return 0;
+}
+
+/*
+ * Get the current statistics.
+ * This may be called with the card open or closed.
+ */
+static struct net_device_stats *cops_get_stats(struct net_device *dev)
+{
+ struct cops_local *lp = netdev_priv(dev);
+ return &lp->stats;
+}
+
+#ifdef MODULE
+static struct net_device *cops_dev;
+
+MODULE_LICENSE("GPL");
+module_param(io, int, 0);
+module_param(irq, int, 0);
+module_param(board_type, int, 0);
+
+int init_module(void)
+{
+ if (io == 0)
+ printk(KERN_WARNING "%s: You shouldn't autoprobe with insmod\n",
+ cardname);
+ cops_dev = cops_probe(-1);
+ if (IS_ERR(cops_dev))
+ return PTR_ERR(cops_dev);
+ return 0;
+}
+
+void cleanup_module(void)
+{
+ unregister_netdev(cops_dev);
+ cleanup_card(cops_dev);
+ free_netdev(cops_dev);
+}
+#endif /* MODULE */
+
+/*
+ * Local variables:
+ * compile-command: "gcc -DMODVERSIONS -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O2 -c cops.c"
+ * c-basic-offset: 4
+ * c-file-offsets: ((substatement-open . 0))
+ * End:
+ */
diff --git a/drivers/net/appletalk/cops.h b/drivers/net/appletalk/cops.h
new file mode 100644
index 000000000000..c68ba9c2ef46
--- /dev/null
+++ b/drivers/net/appletalk/cops.h
@@ -0,0 +1,60 @@
+/* cops.h: LocalTalk driver for Linux.
+ *
+ * Authors:
+ * - Jay Schulist <jschlst@samba.org>
+ */
+
+#ifndef __LINUX_COPSLTALK_H
+#define __LINUX_COPSLTALK_H
+
+#ifdef __KERNEL__
+
+/* Max LLAP size we will accept. */
+#define MAX_LLAP_SIZE 603
+
+/* Tangent */
+#define TANG_CARD_STATUS 1
+#define TANG_CLEAR_INT 1
+#define TANG_RESET 3
+
+#define TANG_TX_READY 1
+#define TANG_RX_READY 2
+
+/* Dayna */
+#define DAYNA_CMD_DATA 0
+#define DAYNA_CLEAR_INT 1
+#define DAYNA_CARD_STATUS 2
+#define DAYNA_INT_CARD 3
+#define DAYNA_RESET 4
+
+#define DAYNA_RX_READY 0
+#define DAYNA_TX_READY 1
+#define DAYNA_RX_REQUEST 3
+
+/* Same on both card types */
+#define COPS_CLEAR_INT 1
+
+/* LAP response codes received from the cards. */
+#define LAP_INIT 1 /* Init cmd */
+#define LAP_INIT_RSP 2 /* Init response */
+#define LAP_WRITE 3 /* Write cmd */
+#define DATA_READ 4 /* Data read */
+#define LAP_RESPONSE 4 /* Received ALAP frame response */
+#define LAP_GETSTAT 5 /* Get LAP and HW status */
+#define LAP_RSPSTAT 6 /* Status response */
+
+#endif
+
+/*
+ * Structure to hold the firmware information.
+ */
+struct ltfirmware
+{
+ unsigned int length;
+ unsigned char * data;
+};
+
+#define DAYNA 1
+#define TANGENT 2
+
+#endif
diff --git a/drivers/net/appletalk/cops_ffdrv.h b/drivers/net/appletalk/cops_ffdrv.h
new file mode 100644
index 000000000000..4131b4a7a65b
--- /dev/null
+++ b/drivers/net/appletalk/cops_ffdrv.h
@@ -0,0 +1,533 @@
+
+/*
+ * The firmware this driver downloads into the Localtalk card is a
+ * separate program and is not GPL'd source code, even though the Linux
+ * side driver and the routine that loads this data into the card are.
+ *
+ * It is taken from the COPS SDK and is under the following license
+ *
+ * This material is licensed to you strictly for use in conjunction with
+ * the use of COPS LocalTalk adapters.
+ * There is no charge for this SDK. And no waranty express or implied
+ * about its fitness for any purpose. However, we will cheerefully
+ * refund every penny you paid for this SDK...
+ * Regards,
+ *
+ * Thomas F. Divine
+ * Chief Scientist
+ */
+
+
+/* cops_ffdrv.h: LocalTalk driver firmware dump for Linux.
+ *
+ * Authors:
+ * - Jay Schulist <jschlst@samba.org>
+ */
+
+#include <linux/config.h>
+
+#ifdef CONFIG_COPS_DAYNA
+
+unsigned char ffdrv_code[] = {
+ 58,3,0,50,228,149,33,255,255,34,226,149,
+ 249,17,40,152,33,202,154,183,237,82,77,68,
+ 11,107,98,19,54,0,237,176,175,50,80,0,
+ 62,128,237,71,62,32,237,57,51,62,12,237,
+ 57,50,237,57,54,62,6,237,57,52,62,12,
+ 237,57,49,33,107,137,34,32,128,33,83,130,
+ 34,40,128,33,86,130,34,42,128,33,112,130,
+ 34,36,128,33,211,130,34,38,128,62,0,237,
+ 57,16,33,63,148,34,34,128,237,94,205,15,
+ 130,251,205,168,145,24,141,67,111,112,121,114,
+ 105,103,104,116,32,40,67,41,32,49,57,56,
+ 56,32,45,32,68,97,121,110,97,32,67,111,
+ 109,109,117,110,105,99,97,116,105,111,110,115,
+ 32,32,32,65,108,108,32,114,105,103,104,116,
+ 115,32,114,101,115,101,114,118,101,100,46,32,
+ 32,40,68,40,68,7,16,8,34,7,22,6,
+ 16,5,12,4,8,3,6,140,0,16,39,128,
+ 0,4,96,10,224,6,0,7,126,2,64,11,
+ 118,12,6,13,0,14,193,15,0,5,96,3,
+ 192,1,64,9,8,62,9,211,66,62,192,211,
+ 66,62,100,61,32,253,6,28,33,205,129,14,
+ 66,237,163,194,253,129,6,28,33,205,129,14,
+ 64,237,163,194,9,130,201,62,47,50,71,152,
+ 62,47,211,68,58,203,129,237,57,20,58,204,
+ 129,237,57,21,33,77,152,54,132,205,233,129,
+ 58,228,149,254,209,40,6,56,4,62,0,24,
+ 2,219,96,33,233,149,119,230,62,33,232,149,
+ 119,213,33,8,152,17,7,0,25,119,19,25,
+ 119,209,201,251,237,77,245,197,213,229,221,229,
+ 205,233,129,62,1,50,106,137,205,158,139,221,
+ 225,225,209,193,241,251,237,77,245,197,213,219,
+ 72,237,56,16,230,46,237,57,16,237,56,12,
+ 58,72,152,183,32,26,6,20,17,128,2,237,
+ 56,46,187,32,35,237,56,47,186,32,29,219,
+ 72,230,1,32,3,5,32,232,175,50,72,152,
+ 229,221,229,62,1,50,106,137,205,158,139,221,
+ 225,225,24,25,62,1,50,72,152,58,201,129,
+ 237,57,12,58,202,129,237,57,13,237,56,16,
+ 246,17,237,57,16,209,193,241,251,237,77,245,
+ 197,229,213,221,229,237,56,16,230,17,237,57,
+ 16,237,56,20,58,34,152,246,16,246,8,211,
+ 68,62,6,61,32,253,58,34,152,246,8,211,
+ 68,58,203,129,237,57,20,58,204,129,237,57,
+ 21,237,56,16,246,34,237,57,16,221,225,209,
+ 225,193,241,251,237,77,33,2,0,57,126,230,
+ 3,237,100,1,40,2,246,128,230,130,245,62,
+ 5,211,64,241,211,64,201,229,213,243,237,56,
+ 16,230,46,237,57,16,237,56,12,251,70,35,
+ 35,126,254,175,202,77,133,254,129,202,15,133,
+ 230,128,194,191,132,43,58,44,152,119,33,76,
+ 152,119,35,62,132,119,120,254,255,40,4,58,
+ 49,152,119,219,72,43,43,112,17,3,0,237,
+ 56,52,230,248,237,57,52,219,72,230,1,194,
+ 141,131,209,225,237,56,52,246,6,237,57,52,
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+ 104,152,42,226,149,183,237,82,17,0,255,25,
+ 34,100,152,33,109,152,54,0,33,107,152,229,
+ 205,240,142,193,62,47,50,34,152,62,132,50,
+ 49,152,205,241,145,205,61,145,58,39,152,60,
+ 50,39,152,24,241,205,206,149,251,255,33,109,
+ 152,126,183,202,198,149,110,221,117,251,33,109,
+ 152,54,0,221,126,251,254,1,40,28,254,3,
+ 40,101,254,4,202,190,147,254,5,202,147,147,
+ 254,8,40,87,33,107,152,229,205,240,142,195,
+ 198,149,58,201,154,183,32,21,33,111,152,126,
+ 50,229,149,205,52,144,33,110,152,110,38,0,
+ 229,205,11,142,193,237,91,96,152,42,104,152,
+ 25,221,117,254,221,116,255,35,35,54,2,17,
+ 2,0,43,43,115,35,114,58,44,152,35,35,
+ 119,58,228,149,35,119,62,1,211,100,211,84,
+ 62,1,50,201,154,24,169,205,153,142,58,231,
+ 149,183,40,250,175,50,231,149,33,110,152,126,
+ 254,255,40,91,58,233,149,230,63,183,40,83,
+ 94,22,0,33,234,149,25,126,183,40,13,33,
+ 110,152,94,33,234,150,25,126,254,3,32,36,
+ 205,81,148,125,180,33,110,152,94,22,0,40,
+ 17,33,234,149,25,54,0,33,107,152,229,205,
+ 240,142,193,195,198,149,33,234,150,25,54,0,
+ 33,110,152,94,22,0,33,234,149,25,126,50,
+ 49,152,254,132,32,37,62,47,50,34,152,42,
+ 107,152,229,33,110,152,229,205,174,140,193,193,
+ 125,180,33,110,152,94,22,0,33,234,150,202,
+ 117,147,25,52,195,120,147,58,49,152,254,140,
+ 32,7,62,1,50,34,152,24,210,62,32,50,
+ 106,152,24,19,58,49,152,95,58,106,152,163,
+ 183,58,106,152,32,11,203,63,50,106,152,58,
+ 106,152,183,32,231,254,2,40,51,254,4,40,
+ 38,254,8,40,26,254,16,40,13,254,32,32,
+ 158,62,165,50,49,152,62,69,24,190,62,164,
+ 50,49,152,62,70,24,181,62,163,50,49,152,
+ 175,24,173,62,162,50,49,152,62,1,24,164,
+ 62,161,50,49,152,62,3,24,155,25,54,0,
+ 221,126,251,254,8,40,7,58,230,149,183,202,
+ 32,146,33,107,152,229,205,240,142,193,211,84,
+ 195,198,149,237,91,96,152,42,104,152,25,221,
+ 117,254,221,116,255,35,35,54,6,17,2,0,
+ 43,43,115,35,114,58,228,149,35,35,119,58,
+ 233,149,35,119,205,146,142,195,32,146,237,91,
+ 96,152,42,104,152,25,229,205,160,142,193,58,
+ 231,149,183,40,250,175,50,231,149,243,237,91,
+ 96,152,42,104,152,25,221,117,254,221,116,255,
+ 78,35,70,221,113,252,221,112,253,89,80,42,
+ 98,152,183,237,82,34,98,152,203,124,40,19,
+ 33,0,0,34,98,152,34,102,152,34,96,152,
+ 62,1,50,95,152,24,40,221,94,252,221,86,
+ 253,19,19,19,42,96,152,25,34,96,152,237,
+ 91,100,152,33,158,253,25,237,91,96,152,205,
+ 171,149,242,55,148,33,0,0,34,96,152,175,
+ 50,230,149,251,195,32,146,245,62,1,50,231,
+ 149,62,16,237,57,0,211,80,241,251,237,77,
+ 201,205,186,149,229,229,33,0,0,34,37,152,
+ 33,110,152,126,50,234,151,58,44,152,33,235,
+ 151,119,221,54,253,0,221,54,254,0,195,230,
+ 148,33,236,151,54,175,33,3,0,229,33,234,
+ 151,229,205,174,140,193,193,33,236,151,126,254,
+ 255,40,74,33,245,151,110,221,117,255,33,249,
+ 151,126,221,166,255,221,119,255,33,253,151,126,
+ 221,166,255,221,119,255,58,232,149,95,221,126,
+ 255,163,221,119,255,183,40,15,230,191,33,110,
+ 152,94,22,0,33,234,149,25,119,24,12,33,
+ 110,152,94,22,0,33,234,149,25,54,132,33,
+ 0,0,195,198,149,221,110,253,221,102,254,35,
+ 221,117,253,221,116,254,17,32,0,221,110,253,
+ 221,102,254,205,171,149,250,117,148,58,233,149,
+ 203,87,40,84,33,1,0,34,37,152,221,54,
+ 253,0,221,54,254,0,24,53,33,236,151,54,
+ 175,33,3,0,229,33,234,151,229,205,174,140,
+ 193,193,33,236,151,126,254,255,40,14,33,110,
+ 152,94,22,0,33,234,149,25,54,140,24,159,
+ 221,110,253,221,102,254,35,221,117,253,221,116,
+ 254,17,32,0,221,110,253,221,102,254,205,171,
+ 149,250,12,149,33,2,0,34,37,152,221,54,
+ 253,0,221,54,254,0,24,54,33,236,151,54,
+ 175,33,3,0,229,33,234,151,229,205,174,140,
+ 193,193,33,236,151,126,254,255,40,15,33,110,
+ 152,94,22,0,33,234,149,25,54,132,195,211,
+ 148,221,110,253,221,102,254,35,221,117,253,221,
+ 116,254,17,32,0,221,110,253,221,102,254,205,
+ 171,149,250,96,149,33,1,0,195,198,149,124,
+ 170,250,179,149,237,82,201,124,230,128,237,82,
+ 60,201,225,253,229,221,229,221,33,0,0,221,
+ 57,233,221,249,221,225,253,225,201,233,225,253,
+ 229,221,229,221,33,0,0,221,57,94,35,86,
+ 35,235,57,249,235,233,0,0,0,0,0,0,
+ 62,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 175,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,133,1,0,0,0,63,
+ 255,255,255,255,0,0,0,63,0,0,0,0,
+ 0,0,0,0,0,0,0,24,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0
+ } ;
+
+#endif
diff --git a/drivers/net/appletalk/cops_ltdrv.h b/drivers/net/appletalk/cops_ltdrv.h
new file mode 100644
index 000000000000..05de66dd9206
--- /dev/null
+++ b/drivers/net/appletalk/cops_ltdrv.h
@@ -0,0 +1,242 @@
+/*
+ * The firmware this driver downloads into the Localtalk card is a
+ * separate program and is not GPL'd source code, even though the Linux
+ * side driver and the routine that loads this data into the card are.
+ *
+ * It is taken from the COPS SDK and is under the following license
+ *
+ * This material is licensed to you strictly for use in conjunction with
+ * the use of COPS LocalTalk adapters.
+ * There is no charge for this SDK. And no waranty express or implied
+ * about its fitness for any purpose. However, we will cheerefully
+ * refund every penny you paid for this SDK...
+ * Regards,
+ *
+ * Thomas F. Divine
+ * Chief Scientist
+ */
+
+
+/* cops_ltdrv.h: LocalTalk driver firmware dump for Linux.
+ *
+ * Authors:
+ * - Jay Schulist <jschlst@samba.org>
+ */
+
+#include <linux/config.h>
+
+#ifdef CONFIG_COPS_TANGENT
+
+unsigned char ltdrv_code[] = {
+ 58,3,0,50,148,10,33,143,15,62,85,119,
+ 190,32,9,62,170,119,190,32,3,35,24,241,
+ 34,146,10,249,17,150,10,33,143,15,183,237,
+ 82,77,68,11,107,98,19,54,0,237,176,62,
+ 16,237,57,51,62,0,237,57,50,237,57,54,
+ 62,12,237,57,49,62,195,33,39,2,50,56,
+ 0,34,57,0,237,86,205,30,2,251,205,60,
+ 10,24,169,67,111,112,121,114,105,103,104,116,
+ 32,40,99,41,32,49,57,56,56,45,49,57,
+ 57,50,44,32,80,114,105,110,116,105,110,103,
+ 32,67,111,109,109,117,110,105,99,97,116,105,
+ 111,110,115,32,65,115,115,111,99,105,97,116,
+ 101,115,44,32,73,110,99,46,65,108,108,32,
+ 114,105,103,104,116,115,32,114,101,115,101,114,
+ 118,101,100,46,32,32,4,4,22,40,255,60,
+ 4,96,10,224,6,0,7,126,2,64,11,246,
+ 12,6,13,0,14,193,15,0,5,96,3,192,
+ 1,0,9,8,62,3,211,82,62,192,211,82,
+ 201,62,3,211,82,62,213,211,82,201,62,5,
+ 211,82,62,224,211,82,201,62,5,211,82,62,
+ 224,211,82,201,62,5,211,82,62,96,211,82,
+ 201,6,28,33,180,1,14,82,237,163,194,4,
+ 2,33,39,2,34,64,0,58,3,0,230,1,
+ 192,62,11,237,121,62,118,237,121,201,33,182,
+ 10,54,132,205,253,1,201,245,197,213,229,42,
+ 150,10,14,83,17,98,2,67,20,237,162,58,
+ 179,1,95,219,82,230,1,32,6,29,32,247,
+ 195,17,3,62,1,211,82,219,82,95,230,160,
+ 32,10,237,162,32,225,21,32,222,195,15,3,
+ 237,162,123,230,96,194,21,3,62,48,211,82,
+ 62,1,211,82,175,211,82,237,91,150,10,43,
+ 55,237,82,218,19,3,34,152,10,98,107,58,
+ 154,10,190,32,81,62,1,50,158,10,35,35,
+ 62,132,190,32,44,54,133,43,70,58,154,10,
+ 119,43,112,17,3,0,205,137,3,62,16,211,
+ 82,62,56,211,82,205,217,1,42,150,10,14,
+ 83,17,98,2,67,20,58,178,1,95,195,59,
+ 2,62,129,190,194,227,2,54,130,43,70,58,
+ 154,10,119,43,112,17,3,0,205,137,3,195,
+ 254,2,35,35,126,254,132,194,227,2,205,61,
+ 3,24,20,62,128,166,194,222,2,221,229,221,
+ 33,175,10,205,93,6,205,144,7,221,225,225,
+ 209,193,241,251,237,77,221,229,221,33,159,10,
+ 205,93,6,221,225,205,61,3,195,247,2,24,
+ 237,24,235,24,233,230,64,40,2,24,227,24,
+ 225,175,50,179,10,205,208,1,201,197,33,4,
+ 0,57,126,35,102,111,205,51,3,193,201,62,
+ 1,50,179,10,34,150,10,54,0,58,179,10,
+ 183,200,62,14,211,82,62,193,211,82,62,10,
+ 211,82,62,224,211,82,62,6,211,82,58,154,
+ 10,211,82,62,16,211,82,62,56,211,82,62,
+ 48,211,82,219,82,230,1,40,4,219,83,24,
+ 242,62,14,211,82,62,33,211,82,62,1,211,
+ 82,62,9,211,82,62,32,211,82,205,217,1,
+ 201,14,83,205,208,1,24,23,14,83,205,208,
+ 1,205,226,1,58,174,1,61,32,253,205,244,
+ 1,58,174,1,61,32,253,205,226,1,58,175,
+ 1,61,32,253,62,5,211,82,62,233,211,82,
+ 62,128,211,82,58,176,1,61,32,253,237,163,
+ 27,62,192,211,82,219,82,230,4,40,250,237,
+ 163,27,122,179,32,243,219,82,230,4,40,250,
+ 58,178,1,71,219,82,230,4,40,3,5,32,
+ 247,219,82,230,4,40,250,205,235,1,58,177,
+ 1,61,32,253,205,244,1,201,229,213,35,35,
+ 126,230,128,194,145,4,43,58,154,10,119,43,
+ 70,33,181,10,119,43,112,17,3,0,243,62,
+ 10,211,82,219,82,230,128,202,41,4,209,225,
+ 62,1,55,251,201,205,144,3,58,180,10,254,
+ 255,202,127,4,205,217,1,58,178,1,71,219,
+ 82,230,1,32,6,5,32,247,195,173,4,219,
+ 83,71,58,154,10,184,194,173,4,58,178,1,
+ 71,219,82,230,1,32,6,5,32,247,195,173,
+ 4,219,83,58,178,1,71,219,82,230,1,32,
+ 6,5,32,247,195,173,4,219,83,254,133,194,
+ 173,4,58,179,1,24,4,58,179,1,135,61,
+ 32,253,209,225,205,137,3,205,61,3,183,251,
+ 201,209,225,243,62,10,211,82,219,82,230,128,
+ 202,164,4,62,1,55,251,201,205,144,3,205,
+ 61,3,183,251,201,209,225,62,2,55,251,201,
+ 243,62,14,211,82,62,33,211,82,251,201,33,
+ 4,0,57,94,35,86,33,2,0,57,126,35,
+ 102,111,221,229,34,193,10,237,83,195,10,221,
+ 33,171,10,205,93,6,58,185,10,50,186,10,
+ 58,184,10,135,50,184,10,205,112,6,254,3,
+ 56,16,58,185,10,135,60,230,15,50,185,10,
+ 175,50,184,10,24,23,58,183,10,205,112,6,
+ 254,3,48,13,58,185,10,203,63,50,185,10,
+ 62,255,50,183,10,58,185,10,50,186,10,58,
+ 183,10,135,50,183,10,62,32,50,187,10,50,
+ 188,10,6,255,219,82,230,16,32,3,5,32,
+ 247,205,180,4,6,40,219,82,230,16,40,3,
+ 5,32,247,62,10,211,82,219,82,230,128,194,
+ 46,5,219,82,230,16,40,214,237,95,71,58,
+ 186,10,160,230,15,40,32,71,14,10,62,10,
+ 211,82,219,82,230,128,202,119,5,205,180,4,
+ 195,156,5,219,82,230,16,202,156,5,13,32,
+ 229,16,225,42,193,10,237,91,195,10,205,252,
+ 3,48,7,61,202,156,5,195,197,5,221,225,
+ 33,0,0,201,221,33,163,10,205,93,6,58,
+ 188,10,61,50,188,10,40,19,58,186,10,246,
+ 1,50,186,10,58,183,10,246,1,50,183,10,
+ 195,46,5,221,225,33,1,0,201,221,33,167,
+ 10,205,93,6,58,184,10,246,1,50,184,10,
+ 58,186,10,135,246,1,50,186,10,58,187,10,
+ 61,50,187,10,194,46,5,221,225,33,2,0,
+ 201,221,229,33,0,0,57,17,4,0,25,126,
+ 50,154,10,230,128,50,189,10,58,189,10,183,
+ 40,6,221,33,88,2,24,4,221,33,150,0,
+ 58,154,10,183,40,49,60,40,46,61,33,190,
+ 10,119,35,119,35,54,129,175,50,158,10,221,
+ 43,221,229,225,124,181,40,42,33,190,10,17,
+ 3,0,205,206,4,17,232,3,27,123,178,32,
+ 251,58,158,10,183,40,224,58,154,10,71,62,
+ 7,128,230,127,71,58,189,10,176,50,154,10,
+ 24,166,221,225,201,183,221,52,0,192,221,52,
+ 1,192,221,52,2,192,221,52,3,192,55,201,
+ 6,8,14,0,31,48,1,12,16,250,121,201,
+ 33,2,0,57,94,35,86,35,78,35,70,35,
+ 126,35,102,105,79,120,68,103,237,176,201,33,
+ 2,0,57,126,35,102,111,62,17,237,57,48,
+ 125,237,57,40,124,237,57,41,62,0,237,57,
+ 42,62,64,237,57,43,62,0,237,57,44,33,
+ 128,2,125,237,57,46,124,237,57,47,62,145,
+ 237,57,48,211,68,58,149,10,211,66,201,33,
+ 2,0,57,126,35,102,111,62,33,237,57,48,
+ 62,64,237,57,32,62,0,237,57,33,237,57,
+ 34,125,237,57,35,124,237,57,36,62,0,237,
+ 57,37,33,128,2,125,237,57,38,124,237,57,
+ 39,62,97,237,57,48,211,67,58,149,10,211,
+ 66,201,237,56,46,95,237,56,47,87,237,56,
+ 46,111,237,56,47,103,183,237,82,32,235,33,
+ 128,2,183,237,82,201,237,56,38,95,237,56,
+ 39,87,237,56,38,111,237,56,39,103,183,237,
+ 82,32,235,33,128,2,183,237,82,201,205,106,
+ 10,221,110,6,221,102,7,126,35,110,103,195,
+ 118,10,205,106,10,33,0,0,34,205,10,34,
+ 198,10,34,200,10,33,143,15,34,207,10,237,
+ 91,207,10,42,146,10,183,237,82,17,0,255,
+ 25,34,203,10,203,124,40,6,33,0,125,34,
+ 203,10,42,207,10,229,205,37,3,195,118,10,
+ 205,106,10,229,42,150,10,35,35,35,229,205,
+ 70,7,193,124,230,3,103,221,117,254,221,116,
+ 255,237,91,152,10,35,35,35,183,237,82,32,
+ 12,17,5,0,42,152,10,205,91,10,242,203,
+ 7,42,150,10,229,205,37,3,195,118,10,237,
+ 91,152,10,42,200,10,25,34,200,10,42,205,
+ 10,25,34,205,10,237,91,203,10,33,158,253,
+ 25,237,91,205,10,205,91,10,242,245,7,33,
+ 0,0,34,205,10,62,1,50,197,10,205,5,
+ 8,33,0,0,57,249,195,118,10,205,106,10,
+ 58,197,10,183,202,118,10,237,91,198,10,42,
+ 205,10,205,91,10,242,46,8,237,91,205,10,
+ 33,98,2,25,237,91,198,10,205,91,10,250,
+ 78,8,237,91,198,10,42,205,10,183,237,82,
+ 32,7,42,200,10,125,180,40,13,237,91,205,
+ 10,42,198,10,205,91,10,242,97,8,237,91,
+ 207,10,42,205,10,25,229,205,37,3,175,50,
+ 197,10,195,118,10,205,29,3,33,0,0,57,
+ 249,195,118,10,205,106,10,58,202,10,183,40,
+ 22,205,14,7,237,91,209,10,19,19,19,205,
+ 91,10,242,139,8,33,1,0,195,118,10,33,
+ 0,0,195,118,10,205,126,10,252,255,205,108,
+ 8,125,180,194,118,10,237,91,200,10,33,0,
+ 0,205,91,10,242,118,10,237,91,207,10,42,
+ 198,10,25,221,117,254,221,116,255,35,35,35,
+ 229,205,70,7,193,124,230,3,103,35,35,35,
+ 221,117,252,221,116,253,229,221,110,254,221,102,
+ 255,229,33,212,10,229,205,124,6,193,193,221,
+ 110,252,221,102,253,34,209,10,33,211,10,54,
+ 4,33,209,10,227,205,147,6,193,62,1,50,
+ 202,10,243,221,94,252,221,86,253,42,200,10,
+ 183,237,82,34,200,10,203,124,40,17,33,0,
+ 0,34,200,10,34,205,10,34,198,10,50,197,
+ 10,24,37,221,94,252,221,86,253,42,198,10,
+ 25,34,198,10,237,91,203,10,33,158,253,25,
+ 237,91,198,10,205,91,10,242,68,9,33,0,
+ 0,34,198,10,205,5,8,33,0,0,57,249,
+ 251,195,118,10,205,106,10,33,49,13,126,183,
+ 40,16,205,42,7,237,91,47,13,19,19,19,
+ 205,91,10,242,117,9,58,142,15,198,1,50,
+ 142,15,195,118,10,33,49,13,126,254,1,40,
+ 25,254,3,202,7,10,254,5,202,21,10,33,
+ 49,13,54,0,33,47,13,229,205,207,6,195,
+ 118,10,58,141,15,183,32,72,33,51,13,126,
+ 50,149,10,205,86,7,33,50,13,126,230,127,
+ 183,32,40,58,142,15,230,127,50,142,15,183,
+ 32,5,198,1,50,142,15,33,50,13,126,111,
+ 23,159,103,203,125,58,142,15,40,5,198,128,
+ 50,142,15,33,50,13,119,33,50,13,126,111,
+ 23,159,103,229,205,237,5,193,33,211,10,54,
+ 2,33,2,0,34,209,10,58,154,10,33,212,
+ 10,119,58,148,10,33,213,10,119,33,209,10,
+ 229,205,147,6,193,24,128,42,47,13,229,33,
+ 50,13,229,205,191,4,193,24,239,33,211,10,
+ 54,6,33,3,0,34,209,10,58,154,10,33,
+ 212,10,119,58,148,10,33,213,10,119,33,214,
+ 10,54,5,33,209,10,229,205,147,6,24,200,
+ 205,106,10,33,49,13,54,0,33,47,13,229,
+ 205,207,6,33,209,10,227,205,147,6,193,205,
+ 80,9,205,145,8,24,248,124,170,250,99,10,
+ 237,82,201,124,230,128,237,82,60,201,225,253,
+ 229,221,229,221,33,0,0,221,57,233,221,249,
+ 221,225,253,225,201,233,225,253,229,221,229,221,
+ 33,0,0,221,57,94,35,86,35,235,57,249,
+ 235,233,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0
+ } ;
+
+#endif
diff --git a/drivers/net/appletalk/ipddp.c b/drivers/net/appletalk/ipddp.c
new file mode 100644
index 000000000000..1a44a79ed064
--- /dev/null
+++ b/drivers/net/appletalk/ipddp.c
@@ -0,0 +1,317 @@
+/*
+ * ipddp.c: IP to Appletalk-IP Encapsulation driver for Linux
+ * Appletalk-IP to IP Decapsulation driver for Linux
+ *
+ * Authors:
+ * - DDP-IP Encap by: Bradford W. Johnson <johns393@maroon.tc.umn.edu>
+ * - DDP-IP Decap by: Jay Schulist <jschlst@samba.org>
+ *
+ * Derived from:
+ * - Almost all code already existed in net/appletalk/ddp.c I just
+ * moved/reorginized it into a driver file. Original IP-over-DDP code
+ * was done by Bradford W. Johnson <johns393@maroon.tc.umn.edu>
+ * - skeleton.c: A network driver outline for linux.
+ * Written 1993-94 by Donald Becker.
+ * - dummy.c: A dummy net driver. By Nick Holloway.
+ * - MacGate: A user space Daemon for Appletalk-IP Decap for
+ * Linux by Jay Schulist <jschlst@samba.org>
+ *
+ * Copyright 1993 United States Government as represented by the
+ * Director, National Security Agency.
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ip.h>
+#include <linux/atalk.h>
+#include <linux/if_arp.h>
+#include <net/route.h>
+#include <asm/uaccess.h>
+
+#include "ipddp.h" /* Our stuff */
+
+static const char version[] = KERN_INFO "ipddp.c:v0.01 8/28/97 Bradford W. Johnson <johns393@maroon.tc.umn.edu>\n";
+
+static struct ipddp_route *ipddp_route_list;
+
+#ifdef CONFIG_IPDDP_ENCAP
+static int ipddp_mode = IPDDP_ENCAP;
+#else
+static int ipddp_mode = IPDDP_DECAP;
+#endif
+
+/* Index to functions, as function prototypes. */
+static int ipddp_xmit(struct sk_buff *skb, struct net_device *dev);
+static struct net_device_stats *ipddp_get_stats(struct net_device *dev);
+static int ipddp_create(struct ipddp_route *new_rt);
+static int ipddp_delete(struct ipddp_route *rt);
+static struct ipddp_route* ipddp_find_route(struct ipddp_route *rt);
+static int ipddp_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
+
+
+static struct net_device * __init ipddp_init(void)
+{
+ static unsigned version_printed;
+ struct net_device *dev;
+ int err;
+
+ dev = alloc_etherdev(sizeof(struct net_device_stats));
+ if (!dev)
+ return ERR_PTR(-ENOMEM);
+
+ SET_MODULE_OWNER(dev);
+ strcpy(dev->name, "ipddp%d");
+
+ if (version_printed++ == 0)
+ printk(version);
+
+ /* Initalize the device structure. */
+ dev->hard_start_xmit = ipddp_xmit;
+ dev->get_stats = ipddp_get_stats;
+ dev->do_ioctl = ipddp_ioctl;
+
+ dev->type = ARPHRD_IPDDP; /* IP over DDP tunnel */
+ dev->mtu = 585;
+ dev->flags |= IFF_NOARP;
+
+ /*
+ * The worst case header we will need is currently a
+ * ethernet header (14 bytes) and a ddp header (sizeof ddpehdr+1)
+ * We send over SNAP so that takes another 8 bytes.
+ */
+ dev->hard_header_len = 14+8+sizeof(struct ddpehdr)+1;
+
+ err = register_netdev(dev);
+ if (err) {
+ free_netdev(dev);
+ return ERR_PTR(err);
+ }
+
+ /* Let the user now what mode we are in */
+ if(ipddp_mode == IPDDP_ENCAP)
+ printk("%s: Appletalk-IP Encap. mode by Bradford W. Johnson <johns393@maroon.tc.umn.edu>\n",
+ dev->name);
+ if(ipddp_mode == IPDDP_DECAP)
+ printk("%s: Appletalk-IP Decap. mode by Jay Schulist <jschlst@samba.org>\n",
+ dev->name);
+
+ return dev;
+}
+
+/*
+ * Get the current statistics. This may be called with the card open or closed.
+ */
+static struct net_device_stats *ipddp_get_stats(struct net_device *dev)
+{
+ return dev->priv;
+}
+
+/*
+ * Transmit LLAP/ELAP frame using aarp_send_ddp.
+ */
+static int ipddp_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ u32 paddr = ((struct rtable*)skb->dst)->rt_gateway;
+ struct ddpehdr *ddp;
+ struct ipddp_route *rt;
+ struct atalk_addr *our_addr;
+
+ /*
+ * Find appropriate route to use, based only on IP number.
+ */
+ for(rt = ipddp_route_list; rt != NULL; rt = rt->next)
+ {
+ if(rt->ip == paddr)
+ break;
+ }
+ if(rt == NULL)
+ return 0;
+
+ our_addr = atalk_find_dev_addr(rt->dev);
+
+ if(ipddp_mode == IPDDP_DECAP)
+ /*
+ * Pull off the excess room that should not be there.
+ * This is due to a hard-header problem. This is the
+ * quick fix for now though, till it breaks.
+ */
+ skb_pull(skb, 35-(sizeof(struct ddpehdr)+1));
+
+ /* Create the Extended DDP header */
+ ddp = (struct ddpehdr *)skb->data;
+ ddp->deh_len = skb->len;
+ ddp->deh_hops = 1;
+ ddp->deh_pad = 0;
+ ddp->deh_sum = 0;
+
+ /*
+ * For Localtalk we need aarp_send_ddp to strip the
+ * long DDP header and place a shot DDP header on it.
+ */
+ if(rt->dev->type == ARPHRD_LOCALTLK)
+ {
+ ddp->deh_dnet = 0; /* FIXME more hops?? */
+ ddp->deh_snet = 0;
+ }
+ else
+ {
+ ddp->deh_dnet = rt->at.s_net; /* FIXME more hops?? */
+ ddp->deh_snet = our_addr->s_net;
+ }
+ ddp->deh_dnode = rt->at.s_node;
+ ddp->deh_snode = our_addr->s_node;
+ ddp->deh_dport = 72;
+ ddp->deh_sport = 72;
+
+ *((__u8 *)(ddp+1)) = 22; /* ddp type = IP */
+ *((__u16 *)ddp)=ntohs(*((__u16 *)ddp)); /* fix up length field */
+
+ skb->protocol = htons(ETH_P_ATALK); /* Protocol has changed */
+
+ ((struct net_device_stats *) dev->priv)->tx_packets++;
+ ((struct net_device_stats *) dev->priv)->tx_bytes+=skb->len;
+
+ if(aarp_send_ddp(rt->dev, skb, &rt->at, NULL) < 0)
+ dev_kfree_skb(skb);
+
+ return 0;
+}
+
+/*
+ * Create a routing entry. We first verify that the
+ * record does not already exist. If it does we return -EEXIST
+ */
+static int ipddp_create(struct ipddp_route *new_rt)
+{
+ struct ipddp_route *rt =(struct ipddp_route*) kmalloc(sizeof(*rt), GFP_KERNEL);
+
+ if (rt == NULL)
+ return -ENOMEM;
+
+ rt->ip = new_rt->ip;
+ rt->at = new_rt->at;
+ rt->next = NULL;
+ if ((rt->dev = atrtr_get_dev(&rt->at)) == NULL) {
+ kfree(rt);
+ return -ENETUNREACH;
+ }
+
+ if (ipddp_find_route(rt)) {
+ kfree(rt);
+ return -EEXIST;
+ }
+
+ rt->next = ipddp_route_list;
+ ipddp_route_list = rt;
+
+ return 0;
+}
+
+/*
+ * Delete a route, we only delete a FULL match.
+ * If route does not exist we return -ENOENT.
+ */
+static int ipddp_delete(struct ipddp_route *rt)
+{
+ struct ipddp_route **r = &ipddp_route_list;
+ struct ipddp_route *tmp;
+
+ while((tmp = *r) != NULL)
+ {
+ if(tmp->ip == rt->ip
+ && tmp->at.s_net == rt->at.s_net
+ && tmp->at.s_node == rt->at.s_node)
+ {
+ *r = tmp->next;
+ kfree(tmp);
+ return 0;
+ }
+ r = &tmp->next;
+ }
+
+ return (-ENOENT);
+}
+
+/*
+ * Find a routing entry, we only return a FULL match
+ */
+static struct ipddp_route* ipddp_find_route(struct ipddp_route *rt)
+{
+ struct ipddp_route *f;
+
+ for(f = ipddp_route_list; f != NULL; f = f->next)
+ {
+ if(f->ip == rt->ip
+ && f->at.s_net == rt->at.s_net
+ && f->at.s_node == rt->at.s_node)
+ return (f);
+ }
+
+ return (NULL);
+}
+
+static int ipddp_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct ipddp_route __user *rt = ifr->ifr_data;
+ struct ipddp_route rcp;
+
+ if(!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ if(copy_from_user(&rcp, rt, sizeof(rcp)))
+ return -EFAULT;
+
+ switch(cmd)
+ {
+ case SIOCADDIPDDPRT:
+ return (ipddp_create(&rcp));
+
+ case SIOCFINDIPDDPRT:
+ if(copy_to_user(rt, ipddp_find_route(&rcp), sizeof(struct ipddp_route)))
+ return -EFAULT;
+ return 0;
+
+ case SIOCDELIPDDPRT:
+ return (ipddp_delete(&rcp));
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static struct net_device *dev_ipddp;
+
+MODULE_LICENSE("GPL");
+module_param(ipddp_mode, int, 0);
+
+static int __init ipddp_init_module(void)
+{
+ dev_ipddp = ipddp_init();
+ if (IS_ERR(dev_ipddp))
+ return PTR_ERR(dev_ipddp);
+ return 0;
+}
+
+static void __exit ipddp_cleanup_module(void)
+{
+ struct ipddp_route *p;
+
+ unregister_netdev(dev_ipddp);
+ free_netdev(dev_ipddp);
+
+ while (ipddp_route_list) {
+ p = ipddp_route_list->next;
+ kfree(ipddp_route_list);
+ ipddp_route_list = p;
+ }
+}
+
+module_init(ipddp_init_module);
+module_exit(ipddp_cleanup_module);
diff --git a/drivers/net/appletalk/ipddp.h b/drivers/net/appletalk/ipddp.h
new file mode 100644
index 000000000000..52072fb0c610
--- /dev/null
+++ b/drivers/net/appletalk/ipddp.h
@@ -0,0 +1,27 @@
+/*
+ * ipddp.h: Header for IP-over-DDP driver for Linux.
+ */
+
+#ifndef __LINUX_IPDDP_H
+#define __LINUX_IPDDP_H
+
+#ifdef __KERNEL__
+
+#define SIOCADDIPDDPRT (SIOCDEVPRIVATE)
+#define SIOCDELIPDDPRT (SIOCDEVPRIVATE+1)
+#define SIOCFINDIPDDPRT (SIOCDEVPRIVATE+2)
+
+struct ipddp_route
+{
+ struct net_device *dev; /* Carrier device */
+ __u32 ip; /* IP address */
+ struct atalk_addr at; /* Gateway appletalk address */
+ int flags;
+ struct ipddp_route *next;
+};
+
+#define IPDDP_ENCAP 1
+#define IPDDP_DECAP 2
+
+#endif /* __KERNEL__ */
+#endif /* __LINUX_IPDDP_H */
diff --git a/drivers/net/appletalk/ltpc.c b/drivers/net/appletalk/ltpc.c
new file mode 100644
index 000000000000..ad8e943231a1
--- /dev/null
+++ b/drivers/net/appletalk/ltpc.c
@@ -0,0 +1,1313 @@
+/*** ltpc.c -- a driver for the LocalTalk PC card.
+ *
+ * Copyright (c) 1995,1996 Bradford W. Johnson <johns393@maroon.tc.umn.edu>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ * This is ALPHA code at best. It may not work for you. It may
+ * damage your equipment. It may damage your relations with other
+ * users of your network. Use it at your own risk!
+ *
+ * Based in part on:
+ * skeleton.c by Donald Becker
+ * dummy.c by Nick Holloway and Alan Cox
+ * loopback.c by Ross Biro, Fred van Kampen, Donald Becker
+ * the netatalk source code (UMICH)
+ * lots of work on the card...
+ *
+ * I do not have access to the (proprietary) SDK that goes with the card.
+ * If you do, I don't want to know about it, and you can probably write
+ * a better driver yourself anyway. This does mean that the pieces that
+ * talk to the card are guesswork on my part, so use at your own risk!
+ *
+ * This is my first try at writing Linux networking code, and is also
+ * guesswork. Again, use at your own risk! (Although on this part, I'd
+ * welcome suggestions)
+ *
+ * This is a loadable kernel module which seems to work at my site
+ * consisting of a 1.2.13 linux box running netatalk 1.3.3, and with
+ * the kernel support from 1.3.3b2 including patches routing.patch
+ * and ddp.disappears.from.chooser. In order to run it, you will need
+ * to patch ddp.c and aarp.c in the kernel, but only a little...
+ *
+ * I'm fairly confident that while this is arguably badly written, the
+ * problems that people experience will be "higher level", that is, with
+ * complications in the netatalk code. The driver itself doesn't do
+ * anything terribly complicated -- it pretends to be an ether device
+ * as far as netatalk is concerned, strips the DDP data out of the ether
+ * frame and builds a LLAP packet to send out the card. In the other
+ * direction, it receives LLAP frames from the card and builds a fake
+ * ether packet that it then tosses up to the networking code. You can
+ * argue (correctly) that this is an ugly way to do things, but it
+ * requires a minimal amount of fooling with the code in ddp.c and aarp.c.
+ *
+ * The card will do a lot more than is used here -- I *think* it has the
+ * layers up through ATP. Even if you knew how that part works (which I
+ * don't) it would be a big job to carve up the kernel ddp code to insert
+ * things at a higher level, and probably a bad idea...
+ *
+ * There are a number of other cards that do LocalTalk on the PC. If
+ * nobody finds any insurmountable (at the netatalk level) problems
+ * here, this driver should encourage people to put some work into the
+ * other cards (some of which I gather are still commercially available)
+ * and also to put hooks for LocalTalk into the official ddp code.
+ *
+ * I welcome comments and suggestions. This is my first try at Linux
+ * networking stuff, and there are probably lots of things that I did
+ * suboptimally.
+ *
+ ***/
+
+/***
+ *
+ * $Log: ltpc.c,v $
+ * Revision 1.1.2.1 2000/03/01 05:35:07 jgarzik
+ * at and tr cleanup
+ *
+ * Revision 1.8 1997/01/28 05:44:54 bradford
+ * Clean up for non-module a little.
+ * Hacked about a bit to clean things up - Alan Cox
+ * Probably broken it from the origina 1.8
+ *
+
+ * 1998/11/09: David Huggins-Daines <dhd@debian.org>
+ * Cleaned up the initialization code to use the standard autoirq methods,
+ and to probe for things in the standard order of i/o, irq, dma. This
+ removes the "reset the reset" hack, because I couldn't figure out an
+ easy way to get the card to trigger an interrupt after it.
+ * Added support for passing configuration parameters on the kernel command
+ line and through insmod
+ * Changed the device name from "ltalk0" to "lt0", both to conform with the
+ other localtalk driver, and to clear up the inconsistency between the
+ module and the non-module versions of the driver :-)
+ * Added a bunch of comments (I was going to make some enums for the state
+ codes and the register offsets, but I'm still not sure exactly what their
+ semantics are)
+ * Don't poll anymore in interrupt-driven mode
+ * It seems to work as a module now (as of 2.1.127), but I don't think
+ I'm responsible for that...
+
+ *
+ * Revision 1.7 1996/12/12 03:42:33 bradford
+ * DMA alloc cribbed from 3c505.c.
+ *
+ * Revision 1.6 1996/12/12 03:18:58 bradford
+ * Added virt_to_bus; works in 2.1.13.
+ *
+ * Revision 1.5 1996/12/12 03:13:22 root
+ * xmitQel initialization -- think through better though.
+ *
+ * Revision 1.4 1996/06/18 14:55:55 root
+ * Change names to ltpc. Tabs. Took a shot at dma alloc,
+ * although more needs to be done eventually.
+ *
+ * Revision 1.3 1996/05/22 14:59:39 root
+ * Change dev->open, dev->close to track dummy.c in 1.99.(around 7)
+ *
+ * Revision 1.2 1996/05/22 14:58:24 root
+ * Change tabs mostly.
+ *
+ * Revision 1.1 1996/04/23 04:45:09 root
+ * Initial revision
+ *
+ * Revision 0.16 1996/03/05 15:59:56 root
+ * Change ARPHRD_LOCALTLK definition to the "real" one.
+ *
+ * Revision 0.15 1996/03/05 06:28:30 root
+ * Changes for kernel 1.3.70. Still need a few patches to kernel, but
+ * it's getting closer.
+ *
+ * Revision 0.14 1996/02/25 17:38:32 root
+ * More cleanups. Removed query to card on get_stats.
+ *
+ * Revision 0.13 1996/02/21 16:27:40 root
+ * Refix debug_print_skb. Fix mac.raw gotcha that appeared in 1.3.65.
+ * Clean up receive code a little.
+ *
+ * Revision 0.12 1996/02/19 16:34:53 root
+ * Fix debug_print_skb. Kludge outgoing snet to 0 when using startup
+ * range. Change debug to mask: 1 for verbose, 2 for higher level stuff
+ * including packet printing, 4 for lower level (card i/o) stuff.
+ *
+ * Revision 0.11 1996/02/12 15:53:38 root
+ * Added router sends (requires new aarp.c patch)
+ *
+ * Revision 0.10 1996/02/11 00:19:35 root
+ * Change source LTALK_LOGGING debug switch to insmod ... debug=2.
+ *
+ * Revision 0.9 1996/02/10 23:59:35 root
+ * Fixed those fixes for 1.2 -- DANGER! The at.h that comes with netatalk
+ * has a *different* definition of struct sockaddr_at than the Linux kernel
+ * does. This is an "insidious and invidious" bug...
+ * (Actually the preceding comment is false -- it's the atalk.h in the
+ * ancient atalk-0.06 that's the problem)
+ *
+ * Revision 0.8 1996/02/10 19:09:00 root
+ * Merge 1.3 changes. Tested OK under 1.3.60.
+ *
+ * Revision 0.7 1996/02/10 17:56:56 root
+ * Added debug=1 parameter on insmod for debugging prints. Tried
+ * to fix timer unload on rmmod, but I don't think that's the problem.
+ *
+ * Revision 0.6 1995/12/31 19:01:09 root
+ * Clean up rmmod, irq comments per feedback from Corin Anderson (Thanks Corey!)
+ * Clean up initial probing -- sometimes the card wakes up latched in reset.
+ *
+ * Revision 0.5 1995/12/22 06:03:44 root
+ * Added comments in front and cleaned up a bit.
+ * This version sent out to people.
+ *
+ * Revision 0.4 1995/12/18 03:46:44 root
+ * Return shortDDP to longDDP fake to 0/0. Added command structs.
+ *
+ ***/
+
+/* ltpc jumpers are:
+*
+* Interrupts -- set at most one. If none are set, the driver uses
+* polled mode. Because the card was developed in the XT era, the
+* original documentation refers to IRQ2. Since you'll be running
+* this on an AT (or later) class machine, that really means IRQ9.
+*
+* SW1 IRQ 4
+* SW2 IRQ 3
+* SW3 IRQ 9 (2 in original card documentation only applies to XT)
+*
+*
+* DMA -- choose DMA 1 or 3, and set both corresponding switches.
+*
+* SW4 DMA 3
+* SW5 DMA 1
+* SW6 DMA 3
+* SW7 DMA 1
+*
+*
+* I/O address -- choose one.
+*
+* SW8 220 / 240
+*/
+
+/* To have some stuff logged, do
+* insmod ltpc.o debug=1
+*
+* For a whole bunch of stuff, use higher numbers.
+*
+* The default is 0, i.e. no messages except for the probe results.
+*/
+
+/* insmod-tweakable variables */
+static int debug;
+#define DEBUG_VERBOSE 1
+#define DEBUG_UPPER 2
+#define DEBUG_LOWER 4
+
+static int io;
+static int irq;
+static int dma;
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/spinlock.h>
+#include <linux/in.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/if_arp.h>
+#include <linux/if_ltalk.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/atalk.h>
+#include <linux/bitops.h>
+
+#include <asm/system.h>
+#include <asm/dma.h>
+#include <asm/io.h>
+
+/* our stuff */
+#include "ltpc.h"
+
+static DEFINE_SPINLOCK(txqueue_lock);
+static DEFINE_SPINLOCK(mbox_lock);
+
+/* function prototypes */
+static int do_read(struct net_device *dev, void *cbuf, int cbuflen,
+ void *dbuf, int dbuflen);
+static int sendup_buffer (struct net_device *dev);
+
+/* Dma Memory related stuff, cribbed directly from 3c505.c */
+
+static unsigned long dma_mem_alloc(int size)
+{
+ int order = get_order(size);
+
+ return __get_dma_pages(GFP_KERNEL, order);
+}
+
+/* DMA data buffer, DMA command buffer */
+static unsigned char *ltdmabuf;
+static unsigned char *ltdmacbuf;
+
+/* private struct, holds our appletalk address */
+
+struct ltpc_private
+{
+ struct net_device_stats stats;
+ struct atalk_addr my_addr;
+};
+
+/* transmit queue element struct */
+
+struct xmitQel {
+ struct xmitQel *next;
+ /* command buffer */
+ unsigned char *cbuf;
+ short cbuflen;
+ /* data buffer */
+ unsigned char *dbuf;
+ short dbuflen;
+ unsigned char QWrite; /* read or write data */
+ unsigned char mailbox;
+};
+
+/* the transmit queue itself */
+
+static struct xmitQel *xmQhd, *xmQtl;
+
+static void enQ(struct xmitQel *qel)
+{
+ unsigned long flags;
+ qel->next = NULL;
+
+ spin_lock_irqsave(&txqueue_lock, flags);
+ if (xmQtl) {
+ xmQtl->next = qel;
+ } else {
+ xmQhd = qel;
+ }
+ xmQtl = qel;
+ spin_unlock_irqrestore(&txqueue_lock, flags);
+
+ if (debug & DEBUG_LOWER)
+ printk("enqueued a 0x%02x command\n",qel->cbuf[0]);
+}
+
+static struct xmitQel *deQ(void)
+{
+ unsigned long flags;
+ int i;
+ struct xmitQel *qel=NULL;
+
+ spin_lock_irqsave(&txqueue_lock, flags);
+ if (xmQhd) {
+ qel = xmQhd;
+ xmQhd = qel->next;
+ if(!xmQhd) xmQtl = NULL;
+ }
+ spin_unlock_irqrestore(&txqueue_lock, flags);
+
+ if ((debug & DEBUG_LOWER) && qel) {
+ int n;
+ printk(KERN_DEBUG "ltpc: dequeued command ");
+ n = qel->cbuflen;
+ if (n>100) n=100;
+ for(i=0;i<n;i++) printk("%02x ",qel->cbuf[i]);
+ printk("\n");
+ }
+
+ return qel;
+}
+
+/* and... the queue elements we'll be using */
+static struct xmitQel qels[16];
+
+/* and their corresponding mailboxes */
+static unsigned char mailbox[16];
+static unsigned char mboxinuse[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
+
+static int wait_timeout(struct net_device *dev, int c)
+{
+ /* returns true if it stayed c */
+ /* this uses base+6, but it's ok */
+ int i;
+
+ /* twenty second or so total */
+
+ for(i=0;i<200000;i++) {
+ if ( c != inb_p(dev->base_addr+6) ) return 0;
+ udelay(100);
+ }
+ return 1; /* timed out */
+}
+
+/* get the first free mailbox */
+
+static int getmbox(void)
+{
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&mbox_lock, flags);
+ for(i=1;i<16;i++) if(!mboxinuse[i]) {
+ mboxinuse[i]=1;
+ spin_unlock_irqrestore(&mbox_lock, flags);
+ return i;
+ }
+ spin_unlock_irqrestore(&mbox_lock, flags);
+ return 0;
+}
+
+/* read a command from the card */
+static void handlefc(struct net_device *dev)
+{
+ /* called *only* from idle, non-reentrant */
+ int dma = dev->dma;
+ int base = dev->base_addr;
+ unsigned long flags;
+
+
+ flags=claim_dma_lock();
+ disable_dma(dma);
+ clear_dma_ff(dma);
+ set_dma_mode(dma,DMA_MODE_READ);
+ set_dma_addr(dma,virt_to_bus(ltdmacbuf));
+ set_dma_count(dma,50);
+ enable_dma(dma);
+ release_dma_lock(flags);
+
+ inb_p(base+3);
+ inb_p(base+2);
+
+ if ( wait_timeout(dev,0xfc) ) printk("timed out in handlefc\n");
+}
+
+/* read data from the card */
+static void handlefd(struct net_device *dev)
+{
+ int dma = dev->dma;
+ int base = dev->base_addr;
+ unsigned long flags;
+
+ flags=claim_dma_lock();
+ disable_dma(dma);
+ clear_dma_ff(dma);
+ set_dma_mode(dma,DMA_MODE_READ);
+ set_dma_addr(dma,virt_to_bus(ltdmabuf));
+ set_dma_count(dma,800);
+ enable_dma(dma);
+ release_dma_lock(flags);
+
+ inb_p(base+3);
+ inb_p(base+2);
+
+ if ( wait_timeout(dev,0xfd) ) printk("timed out in handlefd\n");
+ sendup_buffer(dev);
+}
+
+static void handlewrite(struct net_device *dev)
+{
+ /* called *only* from idle, non-reentrant */
+ /* on entry, 0xfb and ltdmabuf holds data */
+ int dma = dev->dma;
+ int base = dev->base_addr;
+ unsigned long flags;
+
+ flags=claim_dma_lock();
+ disable_dma(dma);
+ clear_dma_ff(dma);
+ set_dma_mode(dma,DMA_MODE_WRITE);
+ set_dma_addr(dma,virt_to_bus(ltdmabuf));
+ set_dma_count(dma,800);
+ enable_dma(dma);
+ release_dma_lock(flags);
+
+ inb_p(base+3);
+ inb_p(base+2);
+
+ if ( wait_timeout(dev,0xfb) ) {
+ flags=claim_dma_lock();
+ printk("timed out in handlewrite, dma res %d\n",
+ get_dma_residue(dev->dma) );
+ release_dma_lock(flags);
+ }
+}
+
+static void handleread(struct net_device *dev)
+{
+ /* on entry, 0xfb */
+ /* on exit, ltdmabuf holds data */
+ int dma = dev->dma;
+ int base = dev->base_addr;
+ unsigned long flags;
+
+
+ flags=claim_dma_lock();
+ disable_dma(dma);
+ clear_dma_ff(dma);
+ set_dma_mode(dma,DMA_MODE_READ);
+ set_dma_addr(dma,virt_to_bus(ltdmabuf));
+ set_dma_count(dma,800);
+ enable_dma(dma);
+ release_dma_lock(flags);
+
+ inb_p(base+3);
+ inb_p(base+2);
+ if ( wait_timeout(dev,0xfb) ) printk("timed out in handleread\n");
+}
+
+static void handlecommand(struct net_device *dev)
+{
+ /* on entry, 0xfa and ltdmacbuf holds command */
+ int dma = dev->dma;
+ int base = dev->base_addr;
+ unsigned long flags;
+
+ flags=claim_dma_lock();
+ disable_dma(dma);
+ clear_dma_ff(dma);
+ set_dma_mode(dma,DMA_MODE_WRITE);
+ set_dma_addr(dma,virt_to_bus(ltdmacbuf));
+ set_dma_count(dma,50);
+ enable_dma(dma);
+ release_dma_lock(flags);
+ inb_p(base+3);
+ inb_p(base+2);
+ if ( wait_timeout(dev,0xfa) ) printk("timed out in handlecommand\n");
+}
+
+/* ready made command for getting the result from the card */
+static unsigned char rescbuf[2] = {LT_GETRESULT,0};
+static unsigned char resdbuf[2];
+
+static int QInIdle;
+
+/* idle expects to be called with the IRQ line high -- either because of
+ * an interrupt, or because the line is tri-stated
+ */
+
+static void idle(struct net_device *dev)
+{
+ unsigned long flags;
+ int state;
+ /* FIXME This is initialized to shut the warning up, but I need to
+ * think this through again.
+ */
+ struct xmitQel *q = NULL;
+ int oops;
+ int i;
+ int base = dev->base_addr;
+
+ spin_lock_irqsave(&txqueue_lock, flags);
+ if(QInIdle) {
+ spin_unlock_irqrestore(&txqueue_lock, flags);
+ return;
+ }
+ QInIdle = 1;
+ spin_unlock_irqrestore(&txqueue_lock, flags);
+
+ /* this tri-states the IRQ line */
+ (void) inb_p(base+6);
+
+ oops = 100;
+
+loop:
+ if (0>oops--) {
+ printk("idle: looped too many times\n");
+ goto done;
+ }
+
+ state = inb_p(base+6);
+ if (state != inb_p(base+6)) goto loop;
+
+ switch(state) {
+ case 0xfc:
+ /* incoming command */
+ if (debug & DEBUG_LOWER) printk("idle: fc\n");
+ handlefc(dev);
+ break;
+ case 0xfd:
+ /* incoming data */
+ if(debug & DEBUG_LOWER) printk("idle: fd\n");
+ handlefd(dev);
+ break;
+ case 0xf9:
+ /* result ready */
+ if (debug & DEBUG_LOWER) printk("idle: f9\n");
+ if(!mboxinuse[0]) {
+ mboxinuse[0] = 1;
+ qels[0].cbuf = rescbuf;
+ qels[0].cbuflen = 2;
+ qels[0].dbuf = resdbuf;
+ qels[0].dbuflen = 2;
+ qels[0].QWrite = 0;
+ qels[0].mailbox = 0;
+ enQ(&qels[0]);
+ }
+ inb_p(dev->base_addr+1);
+ inb_p(dev->base_addr+0);
+ if( wait_timeout(dev,0xf9) )
+ printk("timed out idle f9\n");
+ break;
+ case 0xf8:
+ /* ?? */
+ if (xmQhd) {
+ inb_p(dev->base_addr+1);
+ inb_p(dev->base_addr+0);
+ if(wait_timeout(dev,0xf8) )
+ printk("timed out idle f8\n");
+ } else {
+ goto done;
+ }
+ break;
+ case 0xfa:
+ /* waiting for command */
+ if(debug & DEBUG_LOWER) printk("idle: fa\n");
+ if (xmQhd) {
+ q=deQ();
+ memcpy(ltdmacbuf,q->cbuf,q->cbuflen);
+ ltdmacbuf[1] = q->mailbox;
+ if (debug>1) {
+ int n;
+ printk("ltpc: sent command ");
+ n = q->cbuflen;
+ if (n>100) n=100;
+ for(i=0;i<n;i++)
+ printk("%02x ",ltdmacbuf[i]);
+ printk("\n");
+ }
+ handlecommand(dev);
+ if(0xfa==inb_p(base+6)) {
+ /* we timed out, so return */
+ goto done;
+ }
+ } else {
+ /* we don't seem to have a command */
+ if (!mboxinuse[0]) {
+ mboxinuse[0] = 1;
+ qels[0].cbuf = rescbuf;
+ qels[0].cbuflen = 2;
+ qels[0].dbuf = resdbuf;
+ qels[0].dbuflen = 2;
+ qels[0].QWrite = 0;
+ qels[0].mailbox = 0;
+ enQ(&qels[0]);
+ } else {
+ printk("trouble: response command already queued\n");
+ goto done;
+ }
+ }
+ break;
+ case 0Xfb:
+ /* data transfer ready */
+ if(debug & DEBUG_LOWER) printk("idle: fb\n");
+ if(q->QWrite) {
+ memcpy(ltdmabuf,q->dbuf,q->dbuflen);
+ handlewrite(dev);
+ } else {
+ handleread(dev);
+ /* non-zero mailbox numbers are for
+ commmands, 0 is for GETRESULT
+ requests */
+ if(q->mailbox) {
+ memcpy(q->dbuf,ltdmabuf,q->dbuflen);
+ } else {
+ /* this was a result */
+ mailbox[ 0x0f & ltdmabuf[0] ] = ltdmabuf[1];
+ mboxinuse[0]=0;
+ }
+ }
+ break;
+ }
+ goto loop;
+
+done:
+ QInIdle=0;
+
+ /* now set the interrupts back as appropriate */
+ /* the first read takes it out of tri-state (but still high) */
+ /* the second resets it */
+ /* note that after this point, any read of base+6 will
+ trigger an interrupt */
+
+ if (dev->irq) {
+ inb_p(base+7);
+ inb_p(base+7);
+ }
+ return;
+}
+
+
+static int do_write(struct net_device *dev, void *cbuf, int cbuflen,
+ void *dbuf, int dbuflen)
+{
+
+ int i = getmbox();
+ int ret;
+
+ if(i) {
+ qels[i].cbuf = (unsigned char *) cbuf;
+ qels[i].cbuflen = cbuflen;
+ qels[i].dbuf = (unsigned char *) dbuf;
+ qels[i].dbuflen = dbuflen;
+ qels[i].QWrite = 1;
+ qels[i].mailbox = i; /* this should be initted rather */
+ enQ(&qels[i]);
+ idle(dev);
+ ret = mailbox[i];
+ mboxinuse[i]=0;
+ return ret;
+ }
+ printk("ltpc: could not allocate mbox\n");
+ return -1;
+}
+
+static int do_read(struct net_device *dev, void *cbuf, int cbuflen,
+ void *dbuf, int dbuflen)
+{
+
+ int i = getmbox();
+ int ret;
+
+ if(i) {
+ qels[i].cbuf = (unsigned char *) cbuf;
+ qels[i].cbuflen = cbuflen;
+ qels[i].dbuf = (unsigned char *) dbuf;
+ qels[i].dbuflen = dbuflen;
+ qels[i].QWrite = 0;
+ qels[i].mailbox = i; /* this should be initted rather */
+ enQ(&qels[i]);
+ idle(dev);
+ ret = mailbox[i];
+ mboxinuse[i]=0;
+ return ret;
+ }
+ printk("ltpc: could not allocate mbox\n");
+ return -1;
+}
+
+/* end of idle handlers -- what should be seen is do_read, do_write */
+
+static struct timer_list ltpc_timer;
+
+static int ltpc_xmit(struct sk_buff *skb, struct net_device *dev);
+static struct net_device_stats *ltpc_get_stats(struct net_device *dev);
+
+static int read_30 ( struct net_device *dev)
+{
+ lt_command c;
+ c.getflags.command = LT_GETFLAGS;
+ return do_read(dev, &c, sizeof(c.getflags),&c,0);
+}
+
+static int set_30 (struct net_device *dev,int x)
+{
+ lt_command c;
+ c.setflags.command = LT_SETFLAGS;
+ c.setflags.flags = x;
+ return do_write(dev, &c, sizeof(c.setflags),&c,0);
+}
+
+/* LLAP to DDP translation */
+
+static int sendup_buffer (struct net_device *dev)
+{
+ /* on entry, command is in ltdmacbuf, data in ltdmabuf */
+ /* called from idle, non-reentrant */
+
+ int dnode, snode, llaptype, len;
+ int sklen;
+ struct sk_buff *skb;
+ struct net_device_stats *stats = &((struct ltpc_private *)dev->priv)->stats;
+ struct lt_rcvlap *ltc = (struct lt_rcvlap *) ltdmacbuf;
+
+ if (ltc->command != LT_RCVLAP) {
+ printk("unknown command 0x%02x from ltpc card\n",ltc->command);
+ return(-1);
+ }
+ dnode = ltc->dnode;
+ snode = ltc->snode;
+ llaptype = ltc->laptype;
+ len = ltc->length;
+
+ sklen = len;
+ if (llaptype == 1)
+ sklen += 8; /* correct for short ddp */
+ if(sklen > 800) {
+ printk(KERN_INFO "%s: nonsense length in ltpc command 0x14: 0x%08x\n",
+ dev->name,sklen);
+ return -1;
+ }
+
+ if ( (llaptype==0) || (llaptype>2) ) {
+ printk(KERN_INFO "%s: unknown LLAP type: %d\n",dev->name,llaptype);
+ return -1;
+ }
+
+
+ skb = dev_alloc_skb(3+sklen);
+ if (skb == NULL)
+ {
+ printk("%s: dropping packet due to memory squeeze.\n",
+ dev->name);
+ return -1;
+ }
+ skb->dev = dev;
+
+ if (sklen > len)
+ skb_reserve(skb,8);
+ skb_put(skb,len+3);
+ skb->protocol = htons(ETH_P_LOCALTALK);
+ /* add LLAP header */
+ skb->data[0] = dnode;
+ skb->data[1] = snode;
+ skb->data[2] = llaptype;
+ skb->mac.raw = skb->data; /* save pointer to llap header */
+ skb_pull(skb,3);
+
+ /* copy ddp(s,e)hdr + contents */
+ memcpy(skb->data,(void*)ltdmabuf,len);
+
+ skb->h.raw = skb->data;
+
+ stats->rx_packets++;
+ stats->rx_bytes+=skb->len;
+
+ /* toss it onwards */
+ netif_rx(skb);
+ dev->last_rx = jiffies;
+ return 0;
+}
+
+/* the handler for the board interrupt */
+
+static irqreturn_t
+ltpc_interrupt(int irq, void *dev_id, struct pt_regs *reg_ptr)
+{
+ struct net_device *dev = dev_id;
+
+ if (dev==NULL) {
+ printk("ltpc_interrupt: unknown device.\n");
+ return IRQ_NONE;
+ }
+
+ inb_p(dev->base_addr+6); /* disable further interrupts from board */
+
+ idle(dev); /* handle whatever is coming in */
+
+ /* idle re-enables interrupts from board */
+
+ return IRQ_HANDLED;
+}
+
+/***
+ *
+ * The ioctls that the driver responds to are:
+ *
+ * SIOCSIFADDR -- do probe using the passed node hint.
+ * SIOCGIFADDR -- return net, node.
+ *
+ * some of this stuff should be done elsewhere.
+ *
+ ***/
+
+static int ltpc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct sockaddr_at *sa = (struct sockaddr_at *) &ifr->ifr_addr;
+ /* we'll keep the localtalk node address in dev->pa_addr */
+ struct atalk_addr *aa = &((struct ltpc_private *)dev->priv)->my_addr;
+ struct lt_init c;
+ int ltflags;
+
+ if(debug & DEBUG_VERBOSE) printk("ltpc_ioctl called\n");
+
+ switch(cmd) {
+ case SIOCSIFADDR:
+
+ aa->s_net = sa->sat_addr.s_net;
+
+ /* this does the probe and returns the node addr */
+ c.command = LT_INIT;
+ c.hint = sa->sat_addr.s_node;
+
+ aa->s_node = do_read(dev,&c,sizeof(c),&c,0);
+
+ /* get all llap frames raw */
+ ltflags = read_30(dev);
+ ltflags |= LT_FLAG_ALLLAP;
+ set_30 (dev,ltflags);
+
+ dev->broadcast[0] = 0xFF;
+ dev->dev_addr[0] = aa->s_node;
+
+ dev->addr_len=1;
+
+ return 0;
+
+ case SIOCGIFADDR:
+
+ sa->sat_addr.s_net = aa->s_net;
+ sa->sat_addr.s_node = aa->s_node;
+
+ return 0;
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static void set_multicast_list(struct net_device *dev)
+{
+ /* This needs to be present to keep netatalk happy. */
+ /* Actually netatalk needs fixing! */
+}
+
+static int ltpc_hard_header (struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, void *daddr, void *saddr, unsigned len)
+{
+ if(debug & DEBUG_VERBOSE)
+ printk("ltpc_hard_header called for device %s\n",
+ dev->name);
+ return 0;
+}
+
+static int ltpc_poll_counter;
+
+static void ltpc_poll(unsigned long l)
+{
+ struct net_device *dev = (struct net_device *) l;
+
+ del_timer(&ltpc_timer);
+
+ if(debug & DEBUG_VERBOSE) {
+ if (!ltpc_poll_counter) {
+ ltpc_poll_counter = 50;
+ printk("ltpc poll is alive\n");
+ }
+ ltpc_poll_counter--;
+ }
+
+ if (!dev)
+ return; /* we've been downed */
+
+ /* poll 20 times per second */
+ idle(dev);
+ ltpc_timer.expires = jiffies + HZ/20;
+
+ add_timer(&ltpc_timer);
+}
+
+/* DDP to LLAP translation */
+
+static int ltpc_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ /* in kernel 1.3.xx, on entry skb->data points to ddp header,
+ * and skb->len is the length of the ddp data + ddp header
+ */
+
+ struct net_device_stats *stats = &((struct ltpc_private *)dev->priv)->stats;
+
+ int i;
+ struct lt_sendlap cbuf;
+
+ cbuf.command = LT_SENDLAP;
+ cbuf.dnode = skb->data[0];
+ cbuf.laptype = skb->data[2];
+ skb_pull(skb,3); /* skip past LLAP header */
+ cbuf.length = skb->len; /* this is host order */
+ skb->h.raw=skb->data;
+
+ if(debug & DEBUG_UPPER) {
+ printk("command ");
+ for(i=0;i<6;i++)
+ printk("%02x ",((unsigned char *)&cbuf)[i]);
+ printk("\n");
+ }
+
+ do_write(dev,&cbuf,sizeof(cbuf),skb->h.raw,skb->len);
+
+ if(debug & DEBUG_UPPER) {
+ printk("sent %d ddp bytes\n",skb->len);
+ for(i=0;i<skb->len;i++) printk("%02x ",skb->h.raw[i]);
+ printk("\n");
+ }
+
+ stats->tx_packets++;
+ stats->tx_bytes+=skb->len;
+
+ dev_kfree_skb(skb);
+ return 0;
+}
+
+static struct net_device_stats *ltpc_get_stats(struct net_device *dev)
+{
+ struct net_device_stats *stats = &((struct ltpc_private *) dev->priv)->stats;
+ return stats;
+}
+
+/* initialization stuff */
+
+static int __init ltpc_probe_dma(int base, int dma)
+{
+ int want = (dma == 3) ? 2 : (dma == 1) ? 1 : 3;
+ unsigned long timeout;
+ unsigned long f;
+
+ if (want & 1) {
+ if (request_dma(1,"ltpc")) {
+ want &= ~1;
+ } else {
+ f=claim_dma_lock();
+ disable_dma(1);
+ clear_dma_ff(1);
+ set_dma_mode(1,DMA_MODE_WRITE);
+ set_dma_addr(1,virt_to_bus(ltdmabuf));
+ set_dma_count(1,sizeof(struct lt_mem));
+ enable_dma(1);
+ release_dma_lock(f);
+ }
+ }
+ if (want & 2) {
+ if (request_dma(3,"ltpc")) {
+ want &= ~2;
+ } else {
+ f=claim_dma_lock();
+ disable_dma(3);
+ clear_dma_ff(3);
+ set_dma_mode(3,DMA_MODE_WRITE);
+ set_dma_addr(3,virt_to_bus(ltdmabuf));
+ set_dma_count(3,sizeof(struct lt_mem));
+ enable_dma(3);
+ release_dma_lock(f);
+ }
+ }
+ /* set up request */
+
+ /* FIXME -- do timings better! */
+
+ ltdmabuf[0] = LT_READMEM;
+ ltdmabuf[1] = 1; /* mailbox */
+ ltdmabuf[2] = 0; ltdmabuf[3] = 0; /* address */
+ ltdmabuf[4] = 0; ltdmabuf[5] = 1; /* read 0x0100 bytes */
+ ltdmabuf[6] = 0; /* dunno if this is necessary */
+
+ inb_p(io+1);
+ inb_p(io+0);
+ timeout = jiffies+100*HZ/100;
+ while(time_before(jiffies, timeout)) {
+ if ( 0xfa == inb_p(io+6) ) break;
+ }
+
+ inb_p(io+3);
+ inb_p(io+2);
+ while(time_before(jiffies, timeout)) {
+ if ( 0xfb == inb_p(io+6) ) break;
+ }
+
+ /* release the other dma channel (if we opened both of them) */
+
+ if ((want & 2) && (get_dma_residue(3)==sizeof(struct lt_mem))) {
+ want &= ~2;
+ free_dma(3);
+ }
+
+ if ((want & 1) && (get_dma_residue(1)==sizeof(struct lt_mem))) {
+ want &= ~1;
+ free_dma(1);
+ }
+
+ if (!want)
+ return 0;
+
+ return (want & 2) ? 3 : 1;
+}
+
+struct net_device * __init ltpc_probe(void)
+{
+ struct net_device *dev;
+ int err = -ENOMEM;
+ int x=0,y=0;
+ int autoirq;
+ unsigned long f;
+ unsigned long timeout;
+
+ dev = alloc_netdev(sizeof(struct ltpc_private), "lt%d", ltalk_setup);
+ if (!dev)
+ goto out;
+
+ SET_MODULE_OWNER(dev);
+
+ /* probe for the I/O port address */
+
+ if (io != 0x240 && request_region(0x220,8,"ltpc")) {
+ x = inb_p(0x220+6);
+ if ( (x!=0xff) && (x>=0xf0) ) {
+ io = 0x220;
+ goto got_port;
+ }
+ release_region(0x220,8);
+ }
+ if (io != 0x220 && request_region(0x240,8,"ltpc")) {
+ y = inb_p(0x240+6);
+ if ( (y!=0xff) && (y>=0xf0) ){
+ io = 0x240;
+ goto got_port;
+ }
+ release_region(0x240,8);
+ }
+
+ /* give up in despair */
+ printk(KERN_ERR "LocalTalk card not found; 220 = %02x, 240 = %02x.\n", x,y);
+ err = -ENODEV;
+ goto out1;
+
+ got_port:
+ /* probe for the IRQ line */
+ if (irq < 2) {
+ unsigned long irq_mask;
+
+ irq_mask = probe_irq_on();
+ /* reset the interrupt line */
+ inb_p(io+7);
+ inb_p(io+7);
+ /* trigger an interrupt (I hope) */
+ inb_p(io+6);
+ mdelay(2);
+ autoirq = probe_irq_off(irq_mask);
+
+ if (autoirq == 0) {
+ printk(KERN_ERR "ltpc: probe at %#x failed to detect IRQ line.\n", io);
+ } else {
+ irq = autoirq;
+ }
+ }
+
+ /* allocate a DMA buffer */
+ ltdmabuf = (unsigned char *) dma_mem_alloc(1000);
+ if (!ltdmabuf) {
+ printk(KERN_ERR "ltpc: mem alloc failed\n");
+ err = -ENOMEM;
+ goto out2;
+ }
+
+ ltdmacbuf = &ltdmabuf[800];
+
+ if(debug & DEBUG_VERBOSE) {
+ printk("ltdmabuf pointer %08lx\n",(unsigned long) ltdmabuf);
+ }
+
+ /* reset the card */
+
+ inb_p(io+1);
+ inb_p(io+3);
+
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(2*HZ/100);
+
+ inb_p(io+0);
+ inb_p(io+2);
+ inb_p(io+7); /* clear reset */
+ inb_p(io+4);
+ inb_p(io+5);
+ inb_p(io+5); /* enable dma */
+ inb_p(io+6); /* tri-state interrupt line */
+
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(HZ);
+
+ /* now, figure out which dma channel we're using, unless it's
+ already been specified */
+ /* well, 0 is a legal DMA channel, but the LTPC card doesn't
+ use it... */
+ dma = ltpc_probe_dma(io, dma);
+ if (!dma) { /* no dma channel */
+ printk(KERN_ERR "No DMA channel found on ltpc card.\n");
+ err = -ENODEV;
+ goto out3;
+ }
+
+ /* print out friendly message */
+ if(irq)
+ printk(KERN_INFO "Apple/Farallon LocalTalk-PC card at %03x, IR%d, DMA%d.\n",io,irq,dma);
+ else
+ printk(KERN_INFO "Apple/Farallon LocalTalk-PC card at %03x, DMA%d. Using polled mode.\n",io,dma);
+
+ /* Fill in the fields of the device structure with ethernet-generic values. */
+ dev->hard_start_xmit = ltpc_xmit;
+ dev->hard_header = ltpc_hard_header;
+ dev->get_stats = ltpc_get_stats;
+
+ /* add the ltpc-specific things */
+ dev->do_ioctl = &ltpc_ioctl;
+
+ dev->set_multicast_list = &set_multicast_list;
+ dev->mc_list = NULL;
+ dev->base_addr = io;
+ dev->irq = irq;
+ dev->dma = dma;
+
+ /* the card will want to send a result at this point */
+ /* (I think... leaving out this part makes the kernel crash,
+ so I put it back in...) */
+
+ f=claim_dma_lock();
+ disable_dma(dma);
+ clear_dma_ff(dma);
+ set_dma_mode(dma,DMA_MODE_READ);
+ set_dma_addr(dma,virt_to_bus(ltdmabuf));
+ set_dma_count(dma,0x100);
+ enable_dma(dma);
+ release_dma_lock(f);
+
+ (void) inb_p(io+3);
+ (void) inb_p(io+2);
+ timeout = jiffies+100*HZ/100;
+
+ while(time_before(jiffies, timeout)) {
+ if( 0xf9 == inb_p(io+6))
+ break;
+ schedule();
+ }
+
+ if(debug & DEBUG_VERBOSE) {
+ printk("setting up timer and irq\n");
+ }
+
+ /* grab it and don't let go :-) */
+ if (irq && request_irq( irq, &ltpc_interrupt, 0, "ltpc", dev) >= 0)
+ {
+ (void) inb_p(io+7); /* enable interrupts from board */
+ (void) inb_p(io+7); /* and reset irq line */
+ } else {
+ if( irq )
+ printk(KERN_ERR "ltpc: IRQ already in use, using polled mode.\n");
+ dev->irq = 0;
+ /* polled mode -- 20 times per second */
+ /* this is really, really slow... should it poll more often? */
+ init_timer(&ltpc_timer);
+ ltpc_timer.function=ltpc_poll;
+ ltpc_timer.data = (unsigned long) dev;
+
+ ltpc_timer.expires = jiffies + HZ/20;
+ add_timer(&ltpc_timer);
+ }
+ err = register_netdev(dev);
+ if (err)
+ goto out4;
+
+ return NULL;
+out4:
+ del_timer_sync(&ltpc_timer);
+ if (dev->irq)
+ free_irq(dev->irq, dev);
+out3:
+ free_pages((unsigned long)ltdmabuf, get_order(1000));
+out2:
+ release_region(io, 8);
+out1:
+ free_netdev(dev);
+out:
+ return ERR_PTR(err);
+}
+
+#ifndef MODULE
+/* handles "ltpc=io,irq,dma" kernel command lines */
+static int __init ltpc_setup(char *str)
+{
+ int ints[5];
+
+ str = get_options(str, ARRAY_SIZE(ints), ints);
+
+ if (ints[0] == 0) {
+ if (str && !strncmp(str, "auto", 4)) {
+ /* do nothing :-) */
+ }
+ else {
+ /* usage message */
+ printk (KERN_ERR
+ "ltpc: usage: ltpc=auto|iobase[,irq[,dma]]\n");
+ return 0;
+ }
+ } else {
+ io = ints[1];
+ if (ints[0] > 1) {
+ irq = ints[2];
+ }
+ if (ints[0] > 2) {
+ dma = ints[3];
+ }
+ /* ignore any other paramters */
+ }
+ return 1;
+}
+
+__setup("ltpc=", ltpc_setup);
+#endif /* MODULE */
+
+static struct net_device *dev_ltpc;
+
+#ifdef MODULE
+
+MODULE_LICENSE("GPL");
+module_param(debug, int, 0);
+module_param(io, int, 0);
+module_param(irq, int, 0);
+module_param(dma, int, 0);
+
+
+int __init init_module(void)
+{
+ if(io == 0)
+ printk(KERN_NOTICE
+ "ltpc: Autoprobing is not recommended for modules\n");
+
+ dev_ltpc = ltpc_probe();
+ if (IS_ERR(dev_ltpc))
+ return PTR_ERR(dev_ltpc);
+ return 0;
+}
+#endif
+
+static void __exit ltpc_cleanup(void)
+{
+
+ if(debug & DEBUG_VERBOSE) printk("unregister_netdev\n");
+ unregister_netdev(dev_ltpc);
+
+ ltpc_timer.data = 0; /* signal the poll routine that we're done */
+
+ del_timer_sync(&ltpc_timer);
+
+ if(debug & DEBUG_VERBOSE) printk("freeing irq\n");
+
+ if (dev_ltpc->irq)
+ free_irq(dev_ltpc->irq, dev_ltpc);
+
+ if(debug & DEBUG_VERBOSE) printk("freeing dma\n");
+
+ if (dev_ltpc->dma)
+ free_dma(dev_ltpc->dma);
+
+ if(debug & DEBUG_VERBOSE) printk("freeing ioaddr\n");
+
+ if (dev_ltpc->base_addr)
+ release_region(dev_ltpc->base_addr,8);
+
+ free_netdev(dev_ltpc);
+
+ if(debug & DEBUG_VERBOSE) printk("free_pages\n");
+
+ free_pages( (unsigned long) ltdmabuf, get_order(1000));
+
+ if(debug & DEBUG_VERBOSE) printk("returning from cleanup_module\n");
+}
+
+module_exit(ltpc_cleanup);
diff --git a/drivers/net/appletalk/ltpc.h b/drivers/net/appletalk/ltpc.h
new file mode 100644
index 000000000000..cd30544a3729
--- /dev/null
+++ b/drivers/net/appletalk/ltpc.h
@@ -0,0 +1,73 @@
+/*** ltpc.h
+ *
+ *
+ ***/
+
+#define LT_GETRESULT 0x00
+#define LT_WRITEMEM 0x01
+#define LT_READMEM 0x02
+#define LT_GETFLAGS 0x04
+#define LT_SETFLAGS 0x05
+#define LT_INIT 0x10
+#define LT_SENDLAP 0x13
+#define LT_RCVLAP 0x14
+
+/* the flag that we care about */
+#define LT_FLAG_ALLLAP 0x04
+
+struct lt_getresult {
+ unsigned char command;
+ unsigned char mailbox;
+};
+
+struct lt_mem {
+ unsigned char command;
+ unsigned char mailbox;
+ unsigned short addr; /* host order */
+ unsigned short length; /* host order */
+};
+
+struct lt_setflags {
+ unsigned char command;
+ unsigned char mailbox;
+ unsigned char flags;
+};
+
+struct lt_getflags {
+ unsigned char command;
+ unsigned char mailbox;
+};
+
+struct lt_init {
+ unsigned char command;
+ unsigned char mailbox;
+ unsigned char hint;
+};
+
+struct lt_sendlap {
+ unsigned char command;
+ unsigned char mailbox;
+ unsigned char dnode;
+ unsigned char laptype;
+ unsigned short length; /* host order */
+};
+
+struct lt_rcvlap {
+ unsigned char command;
+ unsigned char dnode;
+ unsigned char snode;
+ unsigned char laptype;
+ unsigned short length; /* host order */
+};
+
+union lt_command {
+ struct lt_getresult getresult;
+ struct lt_mem mem;
+ struct lt_setflags setflags;
+ struct lt_getflags getflags;
+ struct lt_init init;
+ struct lt_sendlap sendlap;
+ struct lt_rcvlap rcvlap;
+};
+typedef union lt_command lt_command;
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 00:06:57 +0000