diff options
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/net/appletalk | |
| download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz | |
Linux-2.6.12-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/Kconfig | 98 | ||||
| -rw-r--r-- | drivers/net/appletalk/Makefile | 7 | ||||
| -rw-r--r-- | drivers/net/appletalk/cops.c | 1059 | ||||
| -rw-r--r-- | drivers/net/appletalk/cops.h | 60 | ||||
| -rw-r--r-- | drivers/net/appletalk/cops_ffdrv.h | 533 | ||||
| -rw-r--r-- | drivers/net/appletalk/cops_ltdrv.h | 242 | ||||
| -rw-r--r-- | drivers/net/appletalk/ipddp.c | 317 | ||||
| -rw-r--r-- | drivers/net/appletalk/ipddp.h | 27 | ||||
| -rw-r--r-- | drivers/net/appletalk/ltpc.c | 1313 | ||||
| -rw-r--r-- | drivers/net/appletalk/ltpc.h | 73 |
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, + 62,1,55,251,201,62,3,211,66,62,192,211, + 66,62,48,211,66,0,0,219,66,230,1,40, + 4,219,67,24,240,205,203,135,58,75,152,254, + 255,202,128,132,58,49,152,254,161,250,207,131, + 58,34,152,211,68,62,10,211,66,62,128,211, + 66,62,11,211,66,62,6,211,66,24,0,62, + 14,211,66,62,33,211,66,62,1,211,66,62, + 64,211,66,62,3,211,66,62,209,211,66,62, + 100,71,219,66,230,1,32,6,5,32,247,195, 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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, + 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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(<pc_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(<pc_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 = <dmabuf[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 = <pc_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, <pc_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(<pc_timer); + ltpc_timer.function=ltpc_poll; + ltpc_timer.data = (unsigned long) dev; + + ltpc_timer.expires = jiffies + HZ/20; + add_timer(<pc_timer); + } + err = register_netdev(dev); + if (err) + goto out4; + + return NULL; +out4: + del_timer_sync(<pc_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(<pc_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; + |