1 /* cops.c: LocalTalk driver for Linux.
4 * - Jay Schulist <jschlst@samba.org>
6 * With more than a little help from;
7 * - Alan Cox <alan@lxorguk.ukuu.org.uk>
10 * - skeleton.c: A network driver outline for linux.
11 * Written 1993-94 by Donald Becker.
12 * - ltpc.c: A driver for the LocalTalk PC card.
13 * Written by Bradford W. Johnson.
15 * Copyright 1993 United States Government as represented by the
16 * Director, National Security Agency.
18 * This software may be used and distributed according to the terms
19 * of the GNU General Public License, incorporated herein by reference.
22 * 19970608 Alan Cox Allowed dual card type support
23 * Can set board type in insmod
24 * Hooks for cops_setup routine
25 * (not yet implemented).
26 * 19971101 Jay Schulist Fixes for multiple lt* devices.
27 * 19980607 Steven Hirsch Fixed the badly broken support
28 * for Tangent type cards. Only
29 * tested on Daystar LT200. Some
30 * cleanup of formatting and program
31 * logic. Added emacs 'local-vars'
32 * setup for Jay's brace style.
33 * 20000211 Alan Cox Cleaned up for softnet
36 static const char *version =
37 "cops.c:v0.04 6/7/98 Jay Schulist <jschlst@samba.org>\n";
40 * COPS Localtalk SDK. This provides almost all of the information
45 * insmod/modprobe configurable stuff.
46 * - IO Port, choose one your card supports or 0 if you dare.
47 * - IRQ, also choose one your card supports or nothing and let
48 * the driver figure it out.
51 #include <linux/module.h>
52 #include <linux/kernel.h>
53 #include <linux/types.h>
54 #include <linux/fcntl.h>
55 #include <linux/interrupt.h>
56 #include <linux/ptrace.h>
57 #include <linux/ioport.h>
59 #include <linux/string.h>
60 #include <linux/errno.h>
61 #include <linux/init.h>
62 #include <linux/netdevice.h>
63 #include <linux/etherdevice.h>
64 #include <linux/skbuff.h>
65 #include <linux/if_arp.h>
66 #include <linux/if_ltalk.h>
67 #include <linux/delay.h> /* For udelay() */
68 #include <linux/atalk.h>
69 #include <linux/spinlock.h>
70 #include <linux/bitops.h>
71 #include <linux/jiffies.h>
76 #include "cops.h" /* Our Stuff */
80 * The name of the card. Is used for messages and in the requests for
81 * io regions, irqs and dma channels
84 static const char *cardname = "cops";
86 #ifdef CONFIG_COPS_DAYNA
87 static int board_type = DAYNA; /* Module exported */
89 static int board_type = TANGENT;
92 static int io = 0x240; /* Default IO for Dayna */
93 static int irq = 5; /* Default IRQ */
96 * COPS Autoprobe information.
97 * Right now if port address is right but IRQ is not 5 this will
98 * return a 5 no matter what since we will still get a status response.
99 * Need one more additional check to narrow down after we have gotten
100 * the ioaddr. But since only other possible IRQs is 3 and 4 so no real
101 * hurry on this. I *STRONGLY* recommend using IRQ 5 for your card with
104 * This driver has 2 modes and they are: Dayna mode and Tangent mode.
105 * Each mode corresponds with the type of card. It has been found
106 * that there are 2 main types of cards and all other cards are
107 * the same and just have different names or only have minor differences
108 * such as more IO ports. As this driver is tested it will
109 * become more clear on exactly what cards are supported. The driver
110 * defaults to using Dayna mode. To change the drivers mode, simply
111 * select Dayna or Tangent mode when configuring the kernel.
113 * This driver should support:
114 * TANGENT driver mode:
115 * Tangent ATB-II, Novell NL-1000, Daystar Digital LT-200,
118 * Dayna DL2000/DaynaTalk PC (Half Length), COPS LT-95,
119 * Farallon PhoneNET PC III, Farallon PhoneNET PC II
120 * Other cards possibly supported mode unknown though:
121 * Dayna DL2000 (Full length), COPS LT/M (Micro-Channel)
123 * Cards NOT supported by this driver but supported by the ltpc.c
124 * driver written by Bradford W. Johnson <johns393@maroon.tc.umn.edu>
125 * Farallon PhoneNET PC
126 * Original Apple LocalTalk PC card
130 * The Daystar Digital LT200 boards do not support interrupt-driven
131 * IO. You must specify 'irq=0xff' as a module parameter to invoke
132 * polled mode. I also believe that the port probing logic is quite
133 * dangerous at best and certainly hopeless for a polled card. Best to
134 * specify both. - Steve H.
139 * Zero terminated list of IO ports to probe.
142 static unsigned int ports[] = {
143 0x240, 0x340, 0x200, 0x210, 0x220, 0x230, 0x260,
144 0x2A0, 0x300, 0x310, 0x320, 0x330, 0x350, 0x360,
149 * Zero terminated list of IRQ ports to probe.
152 static int cops_irqlist[] = {
156 static struct timer_list cops_timer;
158 /* use 0 for production, 1 for verification, 2 for debug, 3 for verbose debug */
162 static unsigned int cops_debug = COPS_DEBUG;
164 /* The number of low I/O ports used by the card. */
165 #define COPS_IO_EXTENT 8
167 /* Information that needs to be kept for each board. */
171 int board; /* Holds what board type is. */
172 int nodeid; /* Set to 1 once have nodeid. */
173 unsigned char node_acquire; /* Node ID when acquired. */
174 struct atalk_addr node_addr; /* Full node address */
175 spinlock_t lock; /* RX/TX lock */
178 /* Index to functions, as function prototypes. */
179 static int cops_probe1 (struct net_device *dev, int ioaddr);
180 static int cops_irq (int ioaddr, int board);
182 static int cops_open (struct net_device *dev);
183 static int cops_jumpstart (struct net_device *dev);
184 static void cops_reset (struct net_device *dev, int sleep);
185 static void cops_load (struct net_device *dev);
186 static int cops_nodeid (struct net_device *dev, int nodeid);
188 static irqreturn_t cops_interrupt (int irq, void *dev_id);
189 static void cops_poll (unsigned long ltdev);
190 static void cops_timeout(struct net_device *dev);
191 static void cops_rx (struct net_device *dev);
192 static netdev_tx_t cops_send_packet (struct sk_buff *skb,
193 struct net_device *dev);
194 static void set_multicast_list (struct net_device *dev);
195 static int cops_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
196 static int cops_close (struct net_device *dev);
198 static void cleanup_card(struct net_device *dev)
201 free_irq(dev->irq, dev);
202 release_region(dev->base_addr, COPS_IO_EXTENT);
206 * Check for a network adaptor of this type, and return '0' iff one exists.
207 * If dev->base_addr == 0, probe all likely locations.
208 * If dev->base_addr in [1..0x1ff], always return failure.
209 * otherwise go with what we pass in.
211 struct net_device * __init cops_probe(int unit)
213 struct net_device *dev;
218 dev = alloc_ltalkdev(sizeof(struct cops_local));
220 return ERR_PTR(-ENOMEM);
223 sprintf(dev->name, "lt%d", unit);
224 netdev_boot_setup_check(dev);
226 base_addr = dev->base_addr;
228 base_addr = dev->base_addr = io;
231 if (base_addr > 0x1ff) { /* Check a single specified location. */
232 err = cops_probe1(dev, base_addr);
233 } else if (base_addr != 0) { /* Don't probe at all. */
236 /* FIXME Does this really work for cards which generate irq?
237 * It's definitely N.G. for polled Tangent. sh
238 * Dayna cards don't autoprobe well at all, but if your card is
239 * at IRQ 5 & IO 0x240 we find it every time. ;) JS
241 for (port = ports; *port && cops_probe1(dev, *port) < 0; port++)
248 err = register_netdev(dev);
259 static const struct net_device_ops cops_netdev_ops = {
260 .ndo_open = cops_open,
261 .ndo_stop = cops_close,
262 .ndo_start_xmit = cops_send_packet,
263 .ndo_tx_timeout = cops_timeout,
264 .ndo_do_ioctl = cops_ioctl,
265 .ndo_set_rx_mode = set_multicast_list,
269 * This is the real probe routine. Linux has a history of friendly device
270 * probes on the ISA bus. A good device probes avoids doing writes, and
271 * verifies that the correct device exists and functions.
273 static int __init cops_probe1(struct net_device *dev, int ioaddr)
275 struct cops_local *lp;
276 static unsigned version_printed;
277 int board = board_type;
280 if(cops_debug && version_printed++ == 0)
281 printk("%s", version);
283 /* Grab the region so no one else tries to probe our ioports. */
284 if (!request_region(ioaddr, COPS_IO_EXTENT, dev->name))
288 * Since this board has jumpered interrupts, allocate the interrupt
289 * vector now. There is no point in waiting since no other device
290 * can use the interrupt, and this marks the irq as busy. Jumpered
291 * interrupts are typically not reported by the boards, and we must
292 * used AutoIRQ to find them.
298 /* COPS AutoIRQ routine */
299 dev->irq = cops_irq(ioaddr, board);
302 /* No IRQ found on this port, fallthrough */
307 /* Fixup for users that don't know that IRQ 2 is really
308 * IRQ 9, or don't know which one to set.
314 /* Polled operation requested. Although irq of zero passed as
315 * a parameter tells the init routines to probe, we'll
316 * overload it to denote polled operation at runtime.
326 dev->base_addr = ioaddr;
328 /* Reserve any actual interrupt. */
330 retval = request_irq(dev->irq, cops_interrupt, 0, dev->name, dev);
335 lp = netdev_priv(dev);
336 spin_lock_init(&lp->lock);
338 /* Copy local board variable to lp struct. */
341 dev->netdev_ops = &cops_netdev_ops;
342 dev->watchdog_timeo = HZ * 2;
345 /* Tell the user where the card is and what mode we're in. */
347 printk("%s: %s at %#3x, using IRQ %d, in Dayna mode.\n",
348 dev->name, cardname, ioaddr, dev->irq);
351 printk("%s: %s at %#3x, IRQ %d, in Tangent mode\n",
352 dev->name, cardname, ioaddr, dev->irq);
354 printk("%s: %s at %#3x, using polled IO, in Tangent mode.\n",
355 dev->name, cardname, ioaddr);
361 release_region(ioaddr, COPS_IO_EXTENT);
365 static int __init cops_irq (int ioaddr, int board)
367 * This does not use the IRQ to determine where the IRQ is. We just
368 * assume that when we get a correct status response that it's the IRQ.
369 * This really just verifies the IO port but since we only have access
370 * to such a small number of IRQs (5, 4, 3) this is not bad.
371 * This will probably not work for more than one card.
378 outb(0, ioaddr+DAYNA_RESET);
379 inb(ioaddr+DAYNA_RESET);
386 outb(0, ioaddr+TANG_RESET);
389 for(i=0; cops_irqlist[i] !=0; i++)
391 irqaddr = cops_irqlist[i];
392 for(x = 0xFFFF; x>0; x --) /* wait for response */
396 status = (inb(ioaddr+DAYNA_CARD_STATUS)&3);
402 if((inb(ioaddr+TANG_CARD_STATUS)& TANG_TX_READY) !=0)
407 return 0; /* no IRQ found */
411 * Open/initialize the board. This is called (in the current kernel)
412 * sometime after booting when the 'ifconfig' program is run.
414 static int cops_open(struct net_device *dev)
416 struct cops_local *lp = netdev_priv(dev);
421 * I don't know if the Dayna-style boards support polled
422 * operation. For now, only allow it for Tangent.
424 if(lp->board==TANGENT) /* Poll 20 times per second */
426 init_timer(&cops_timer);
427 cops_timer.function = cops_poll;
428 cops_timer.data = (unsigned long)dev;
429 cops_timer.expires = jiffies + HZ/20;
430 add_timer(&cops_timer);
434 printk(KERN_WARNING "%s: No irq line set\n", dev->name);
439 cops_jumpstart(dev); /* Start the card up. */
441 netif_start_queue(dev);
446 * This allows for a dynamic start/restart of the entire card.
448 static int cops_jumpstart(struct net_device *dev)
450 struct cops_local *lp = netdev_priv(dev);
453 * Once the card has the firmware loaded and has acquired
454 * the nodeid, if it is reset it will lose it all.
456 cops_reset(dev,1); /* Need to reset card before load firmware. */
457 cops_load(dev); /* Load the firmware. */
460 * If atalkd already gave us a nodeid we will use that
461 * one again, else we wait for atalkd to give us a nodeid
462 * in cops_ioctl. This may cause a problem if someone steals
463 * our nodeid while we are resetting.
466 cops_nodeid(dev,lp->node_acquire);
471 static void tangent_wait_reset(int ioaddr)
475 while(timeout++ < 5 && (inb(ioaddr+TANG_CARD_STATUS)&TANG_TX_READY)==0)
476 mdelay(1); /* Wait 1 second */
480 * Reset the LocalTalk board.
482 static void cops_reset(struct net_device *dev, int sleep)
484 struct cops_local *lp = netdev_priv(dev);
485 int ioaddr=dev->base_addr;
487 if(lp->board==TANGENT)
489 inb(ioaddr); /* Clear request latch. */
490 outb(0,ioaddr); /* Clear the TANG_TX_READY flop. */
491 outb(0, ioaddr+TANG_RESET); /* Reset the adapter. */
493 tangent_wait_reset(ioaddr);
494 outb(0, ioaddr+TANG_CLEAR_INT);
498 outb(0, ioaddr+DAYNA_RESET); /* Assert the reset port */
499 inb(ioaddr+DAYNA_RESET); /* Clear the reset */
506 netif_wake_queue(dev);
509 static void cops_load (struct net_device *dev)
512 struct ltfirmware *ltf= (struct ltfirmware *)&ifr.ifr_ifru;
513 struct cops_local *lp = netdev_priv(dev);
514 int ioaddr=dev->base_addr;
517 strcpy(ifr.ifr_name,"lt0");
519 /* Get card's firmware code and do some checks on it. */
520 #ifdef CONFIG_COPS_DAYNA
523 printk(KERN_INFO "%s: Missing Free firmware.\n", dev->name);
528 #ifdef CONFIG_COPS_TANGENT
529 if(lp->board==TANGENT)
531 printk(KERN_INFO "%s: Missing Free firmware.\n", dev->name);
537 printk(KERN_INFO "%s; unsupported board type.\n", dev->name);
541 /* Check to make sure firmware is correct length. */
542 if(lp->board==DAYNA && ltf->length!=5983)
544 printk(KERN_WARNING "%s: Firmware is not length of FFDRV.BIN.\n", dev->name);
547 if(lp->board==TANGENT && ltf->length!=2501)
549 printk(KERN_WARNING "%s: Firmware is not length of DRVCODE.BIN.\n", dev->name);
556 * We must wait for a status response
557 * with the DAYNA board.
561 if((inb(ioaddr+DAYNA_CARD_STATUS)&3)==1)
570 * Upload the firmware and kick. Byte-by-byte works nicely here.
573 length = ltf->length;
576 outb(ltf->data[i], ioaddr);
581 printk("%s: Uploaded firmware - %d bytes of %d bytes.\n",
582 dev->name, i, ltf->length);
584 if(lp->board==DAYNA) /* Tell Dayna to run the firmware code. */
585 outb(1, ioaddr+DAYNA_INT_CARD);
586 else /* Tell Tang to run the firmware code. */
589 if(lp->board==TANGENT)
591 tangent_wait_reset(ioaddr);
592 inb(ioaddr); /* Clear initial ready signal. */
597 * Get the LocalTalk Nodeid from the card. We can suggest
598 * any nodeid 1-254. The card will try and get that exact
599 * address else we can specify 0 as the nodeid and the card
600 * will autoprobe for a nodeid.
602 static int cops_nodeid (struct net_device *dev, int nodeid)
604 struct cops_local *lp = netdev_priv(dev);
605 int ioaddr = dev->base_addr;
607 if(lp->board == DAYNA)
609 /* Empty any pending adapter responses. */
610 while((inb(ioaddr+DAYNA_CARD_STATUS)&DAYNA_TX_READY)==0)
612 outb(0, ioaddr+COPS_CLEAR_INT); /* Clear interrupts. */
613 if((inb(ioaddr+DAYNA_CARD_STATUS)&0x03)==DAYNA_RX_REQUEST)
614 cops_rx(dev); /* Kick any packets waiting. */
618 outb(2, ioaddr); /* Output command packet length as 2. */
620 outb(LAP_INIT, ioaddr); /* Send LAP_INIT command byte. */
621 outb(nodeid, ioaddr); /* Suggest node address. */
624 if(lp->board == TANGENT)
626 /* Empty any pending adapter responses. */
627 while(inb(ioaddr+TANG_CARD_STATUS)&TANG_RX_READY)
629 outb(0, ioaddr+COPS_CLEAR_INT); /* Clear interrupt. */
630 cops_rx(dev); /* Kick out packets waiting. */
634 /* Not sure what Tangent does if nodeid picked is used. */
635 if(nodeid == 0) /* Seed. */
636 nodeid = jiffies&0xFF; /* Get a random try */
637 outb(2, ioaddr); /* Command length LSB */
638 outb(0, ioaddr); /* Command length MSB */
639 outb(LAP_INIT, ioaddr); /* Send LAP_INIT byte */
640 outb(nodeid, ioaddr); /* LAP address hint. */
641 outb(0xFF, ioaddr); /* Int. level to use */
644 lp->node_acquire=0; /* Set nodeid holder to 0. */
645 while(lp->node_acquire==0) /* Get *True* nodeid finally. */
647 outb(0, ioaddr+COPS_CLEAR_INT); /* Clear any interrupt. */
649 if(lp->board == DAYNA)
651 if((inb(ioaddr+DAYNA_CARD_STATUS)&0x03)==DAYNA_RX_REQUEST)
652 cops_rx(dev); /* Grab the nodeid put in lp->node_acquire. */
654 if(lp->board == TANGENT)
656 if(inb(ioaddr+TANG_CARD_STATUS)&TANG_RX_READY)
657 cops_rx(dev); /* Grab the nodeid put in lp->node_acquire. */
663 printk(KERN_DEBUG "%s: Node ID %d has been acquired.\n",
664 dev->name, lp->node_acquire);
666 lp->nodeid=1; /* Set got nodeid to 1. */
672 * Poll the Tangent type cards to see if we have work.
675 static void cops_poll(unsigned long ltdev)
680 struct net_device *dev = (struct net_device *)ltdev;
682 del_timer(&cops_timer);
685 return; /* We've been downed */
687 ioaddr = dev->base_addr;
689 status=inb(ioaddr+TANG_CARD_STATUS);
690 if(status & TANG_RX_READY)
692 if(status & TANG_TX_READY)
693 netif_wake_queue(dev);
694 status = inb(ioaddr+TANG_CARD_STATUS);
695 } while((++boguscount < 20) && (status&(TANG_RX_READY|TANG_TX_READY)));
697 /* poll 20 times per second */
698 cops_timer.expires = jiffies + HZ/20;
699 add_timer(&cops_timer);
703 * The typical workload of the driver:
704 * Handle the network interface interrupts.
706 static irqreturn_t cops_interrupt(int irq, void *dev_id)
708 struct net_device *dev = dev_id;
709 struct cops_local *lp;
713 ioaddr = dev->base_addr;
714 lp = netdev_priv(dev);
719 outb(0, ioaddr + COPS_CLEAR_INT);
720 status=inb(ioaddr+DAYNA_CARD_STATUS);
721 if((status&0x03)==DAYNA_RX_REQUEST)
723 netif_wake_queue(dev);
724 } while(++boguscount < 20);
729 status=inb(ioaddr+TANG_CARD_STATUS);
730 if(status & TANG_RX_READY)
732 if(status & TANG_TX_READY)
733 netif_wake_queue(dev);
734 status=inb(ioaddr+TANG_CARD_STATUS);
735 } while((++boguscount < 20) && (status&(TANG_RX_READY|TANG_TX_READY)));
742 * We have a good packet(s), get it/them out of the buffers.
744 static void cops_rx(struct net_device *dev)
748 struct sk_buff *skb = NULL;
749 struct cops_local *lp = netdev_priv(dev);
750 int ioaddr = dev->base_addr;
755 spin_lock_irqsave(&lp->lock, flags);
759 outb(0, ioaddr); /* Send out Zero length. */
761 outb(DATA_READ, ioaddr); /* Send read command out. */
763 /* Wait for DMA to turn around. */
764 while(++boguscount<1000000)
767 if((inb(ioaddr+DAYNA_CARD_STATUS)&0x03)==DAYNA_RX_READY)
771 if(boguscount==1000000)
773 printk(KERN_WARNING "%s: DMA timed out.\n",dev->name);
774 spin_unlock_irqrestore(&lp->lock, flags);
779 /* Get response length. */
781 pkt_len = inb(ioaddr) & 0xFF;
783 pkt_len = inb(ioaddr) & 0x00FF;
784 pkt_len |= (inb(ioaddr) << 8);
786 rsp_type=inb(ioaddr);
788 /* Malloc up new buffer. */
789 skb = dev_alloc_skb(pkt_len);
792 printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n",
794 dev->stats.rx_dropped++;
795 while(pkt_len--) /* Discard packet */
797 spin_unlock_irqrestore(&lp->lock, flags);
801 skb_put(skb, pkt_len);
802 skb->protocol = htons(ETH_P_LOCALTALK);
804 insb(ioaddr, skb->data, pkt_len); /* Eat the Data */
807 outb(1, ioaddr+DAYNA_INT_CARD); /* Interrupt the card */
809 spin_unlock_irqrestore(&lp->lock, flags); /* Restore interrupts. */
811 /* Check for bad response length */
812 if(pkt_len < 0 || pkt_len > MAX_LLAP_SIZE)
814 printk(KERN_WARNING "%s: Bad packet length of %d bytes.\n",
816 dev->stats.tx_errors++;
817 dev_kfree_skb_any(skb);
821 /* Set nodeid and then get out. */
822 if(rsp_type == LAP_INIT_RSP)
823 { /* Nodeid taken from received packet. */
824 lp->node_acquire = skb->data[0];
825 dev_kfree_skb_any(skb);
829 /* One last check to make sure we have a good packet. */
830 if(rsp_type != LAP_RESPONSE)
832 printk(KERN_WARNING "%s: Bad packet type %d.\n", dev->name, rsp_type);
833 dev->stats.tx_errors++;
834 dev_kfree_skb_any(skb);
838 skb_reset_mac_header(skb); /* Point to entire packet. */
840 skb_reset_transport_header(skb); /* Point to data (Skip header). */
842 /* Update the counters. */
843 dev->stats.rx_packets++;
844 dev->stats.rx_bytes += skb->len;
846 /* Send packet to a higher place. */
850 static void cops_timeout(struct net_device *dev)
852 struct cops_local *lp = netdev_priv(dev);
853 int ioaddr = dev->base_addr;
855 dev->stats.tx_errors++;
856 if(lp->board==TANGENT)
858 if((inb(ioaddr+TANG_CARD_STATUS)&TANG_TX_READY)==0)
859 printk(KERN_WARNING "%s: No TX complete interrupt.\n", dev->name);
861 printk(KERN_WARNING "%s: Transmit timed out.\n", dev->name);
862 cops_jumpstart(dev); /* Restart the card. */
863 netif_trans_update(dev); /* prevent tx timeout */
864 netif_wake_queue(dev);
869 * Make the card transmit a LocalTalk packet.
872 static netdev_tx_t cops_send_packet(struct sk_buff *skb,
873 struct net_device *dev)
875 struct cops_local *lp = netdev_priv(dev);
876 int ioaddr = dev->base_addr;
880 * Block a timer-based transmit from overlapping.
883 netif_stop_queue(dev);
885 spin_lock_irqsave(&lp->lock, flags);
886 if(lp->board == DAYNA) /* Wait for adapter transmit buffer. */
887 while((inb(ioaddr+DAYNA_CARD_STATUS)&DAYNA_TX_READY)==0)
889 if(lp->board == TANGENT) /* Wait for adapter transmit buffer. */
890 while((inb(ioaddr+TANG_CARD_STATUS)&TANG_TX_READY)==0)
893 /* Output IO length. */
894 outb(skb->len, ioaddr);
895 if(lp->board == DAYNA)
896 outb(skb->len >> 8, ioaddr);
898 outb((skb->len >> 8)&0x0FF, ioaddr);
900 /* Output IO code. */
901 outb(LAP_WRITE, ioaddr);
903 if(lp->board == DAYNA) /* Check the transmit buffer again. */
904 while((inb(ioaddr+DAYNA_CARD_STATUS)&DAYNA_TX_READY)==0);
906 outsb(ioaddr, skb->data, skb->len); /* Send out the data. */
908 if(lp->board==DAYNA) /* Dayna requires you kick the card */
909 outb(1, ioaddr+DAYNA_INT_CARD);
911 spin_unlock_irqrestore(&lp->lock, flags); /* Restore interrupts. */
913 /* Done sending packet, update counters and cleanup. */
914 dev->stats.tx_packets++;
915 dev->stats.tx_bytes += skb->len;
921 * Dummy function to keep the Appletalk layer happy.
924 static void set_multicast_list(struct net_device *dev)
927 printk("%s: set_multicast_list executed\n", dev->name);
931 * System ioctls for the COPS LocalTalk card.
934 static int cops_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
936 struct cops_local *lp = netdev_priv(dev);
937 struct sockaddr_at *sa = (struct sockaddr_at *)&ifr->ifr_addr;
938 struct atalk_addr *aa = &lp->node_addr;
943 /* Get and set the nodeid and network # atalkd wants. */
944 cops_nodeid(dev, sa->sat_addr.s_node);
945 aa->s_net = sa->sat_addr.s_net;
946 aa->s_node = lp->node_acquire;
948 /* Set broardcast address. */
949 dev->broadcast[0] = 0xFF;
951 /* Set hardware address. */
952 dev->dev_addr[0] = aa->s_node;
957 sa->sat_addr.s_net = aa->s_net;
958 sa->sat_addr.s_node = aa->s_node;
967 * The inverse routine to cops_open().
970 static int cops_close(struct net_device *dev)
972 struct cops_local *lp = netdev_priv(dev);
974 /* If we were running polled, yank the timer.
976 if(lp->board==TANGENT && dev->irq==0)
977 del_timer(&cops_timer);
979 netif_stop_queue(dev);
985 static struct net_device *cops_dev;
987 MODULE_LICENSE("GPL");
988 module_param_hw(io, int, ioport, 0);
989 module_param_hw(irq, int, irq, 0);
990 module_param_hw(board_type, int, other, 0);
992 static int __init cops_module_init(void)
995 printk(KERN_WARNING "%s: You shouldn't autoprobe with insmod\n",
997 cops_dev = cops_probe(-1);
998 return PTR_ERR_OR_ZERO(cops_dev);
1001 static void __exit cops_module_exit(void)
1003 unregister_netdev(cops_dev);
1004 cleanup_card(cops_dev);
1005 free_netdev(cops_dev);
1007 module_init(cops_module_init);
1008 module_exit(cops_module_exit);