diff options
Diffstat (limited to 'drivers/net/appletalk/cops.c')
| -rw-r--r-- | drivers/net/appletalk/cops.c | 1005 |
1 files changed, 0 insertions, 1005 deletions
diff --git a/drivers/net/appletalk/cops.c b/drivers/net/appletalk/cops.c deleted file mode 100644 index 97f254bdbb16..000000000000 --- a/drivers/net/appletalk/cops.c +++ /dev/null @@ -1,1005 +0,0 @@ -/* cops.c: LocalTalk driver for Linux. - * - * Authors: - * - Jay Schulist <jschlst@samba.org> - * - * With more than a little help from; - * - Alan Cox <alan@lxorguk.ukuu.org.uk> - * - * 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/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/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> /* For udelay() */ -#include <linux/atalk.h> -#include <linux/spinlock.h> -#include <linux/bitops.h> -#include <linux/jiffies.h> - -#include <net/Space.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 unknown 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; -static struct net_device *cops_timer_dev; - -/* 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 -{ - 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); -static void cops_poll(struct timer_list *t); -static void cops_timeout(struct net_device *dev, unsigned int txqueue); -static void cops_rx (struct net_device *dev); -static netdev_tx_t cops_send_packet (struct sk_buff *skb, - struct net_device *dev); -static void set_multicast_list (struct net_device *dev); -static int cops_ioctl (struct net_device *dev, struct ifreq *rq, int cmd); -static int cops_close (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_ltalkdev(sizeof(struct cops_local)); - 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; - } - - 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); -} - -static const struct net_device_ops cops_netdev_ops = { - .ndo_open = cops_open, - .ndo_stop = cops_close, - .ndo_start_xmit = cops_send_packet, - .ndo_tx_timeout = cops_timeout, - .ndo_do_ioctl = cops_ioctl, - .ndo_set_rx_mode = set_multicast_list, -}; - -/* - * 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; - fallthrough; /* Once no IRQ found on this port */ - 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; - } - - dev->base_addr = ioaddr; - - /* Reserve any actual interrupt. */ - if (dev->irq) { - retval = request_irq(dev->irq, cops_interrupt, 0, dev->name, dev); - if (retval) - goto err_out; - } - - lp = netdev_priv(dev); - spin_lock_init(&lp->lock); - - /* Copy local board variable to lp struct. */ - lp->board = board; - - dev->netdev_ops = &cops_netdev_ops; - dev->watchdog_timeo = HZ * 2; - - - /* 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 */ - { - cops_timer_dev = dev; - timer_setup(&cops_timer, cops_poll, 0); - 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) - msleep(333); - else - mdelay(333); - } - - netif_wake_queue(dev); -} - -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. */ - } -} - -/* - * 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(struct timer_list *unused) -{ - int ioaddr, status; - int boguscount = 0; - struct net_device *dev = cops_timer_dev; - - 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); -} - -/* - * The typical workload of the driver: - * Handle the network interface interrupts. - */ -static irqreturn_t cops_interrupt(int irq, void *dev_id) -{ - 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. */ - pkt_len = inb(ioaddr); - 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); - dev->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); - dev->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); - dev->stats.tx_errors++; - dev_kfree_skb_any(skb); - return; - } - - skb_reset_mac_header(skb); /* Point to entire packet. */ - skb_pull(skb,3); - skb_reset_transport_header(skb); /* Point to data (Skip header). */ - - /* Update the counters. */ - dev->stats.rx_packets++; - dev->stats.rx_bytes += skb->len; - - /* Send packet to a higher place. */ - netif_rx(skb); -} - -static void cops_timeout(struct net_device *dev, unsigned int txqueue) -{ - struct cops_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - - dev->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. */ - netif_trans_update(dev); /* prevent tx timeout */ - netif_wake_queue(dev); -} - - -/* - * Make the card transmit a LocalTalk packet. - */ - -static netdev_tx_t 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); - outb(skb->len >> 8, 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. */ - dev->stats.tx_packets++; - dev->stats.tx_bytes += skb->len; - dev_kfree_skb (skb); - return NETDEV_TX_OK; -} - -/* - * 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); -} - -/* - * 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 = &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->addr_len = 1; - dev_addr_set(dev, &aa->s_node); - 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; -} - - -#ifdef MODULE -static struct net_device *cops_dev; - -MODULE_LICENSE("GPL"); -module_param_hw(io, int, ioport, 0); -module_param_hw(irq, int, irq, 0); -module_param_hw(board_type, int, other, 0); - -static int __init cops_module_init(void) -{ - if (io == 0) - printk(KERN_WARNING "%s: You shouldn't autoprobe with insmod\n", - cardname); - cops_dev = cops_probe(-1); - return PTR_ERR_OR_ZERO(cops_dev); -} - -static void __exit cops_module_exit(void) -{ - unregister_netdev(cops_dev); - cleanup_card(cops_dev); - free_netdev(cops_dev); -} -module_init(cops_module_init); -module_exit(cops_module_exit); -#endif /* MODULE */ |