690 lines
19 KiB
C
690 lines
19 KiB
C
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/* fmv18x.c: A network device driver for the Fujitsu FMV-181/182/183/184.
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Original: at1700.c (1993-94 by Donald Becker).
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Copyright 1993 United States Government as represented by the
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Director, National Security Agency.
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The author may be reached as becker@scyld.com, or C/O
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Scyld Computing Corporation
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410 Severn Ave., Suite 210
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Annapolis MD 21403
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Modified by Yutaka TAMIYA (tamy@flab.fujitsu.co.jp)
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Copyright 1994 Fujitsu Laboratories Ltd.
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Special thanks to:
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Masayoshi UTAKA (utaka@ace.yk.fujitsu.co.jp)
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for testing this driver.
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H. NEGISHI (agy, negishi@sun45.psd.cs.fujitsu.co.jp)
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for suggestion of some program modification.
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Masahiro SEKIGUCHI <seki@sysrap.cs.fujitsu.co.jp>
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for suggestion of some program modification.
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Kazutoshi MORIOKA (morioka@aurora.oaks.cs.fujitsu.co.jp)
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for testing this driver.
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This software may be used and distributed according to the terms
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of the GNU General Public License, incorporated herein by reference.
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This is a device driver for the Fujitsu FMV-181/182/183/184, which
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is a straight-forward Fujitsu MB86965 implementation.
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Sources:
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at1700.c
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The Fujitsu MB86965 datasheet.
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The Fujitsu FMV-181/182 user's guide
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*/
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static const char version[] =
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"fmv18x.c:v2.2.0 09/24/98 Yutaka TAMIYA (tamy@flab.fujitsu.co.jp)\n";
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/fcntl.h>
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#include <linux/interrupt.h>
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#include <linux/ioport.h>
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#include <linux/in.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/spinlock.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/delay.h>
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#include <linux/bitops.h>
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#include <asm/system.h>
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#include <asm/io.h>
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#include <asm/dma.h>
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#define DRV_NAME "fmv18x"
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static unsigned fmv18x_probe_list[] __initdata = {
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0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x300, 0x340, 0
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};
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/* use 0 for production, 1 for verification, >2 for debug */
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#ifndef NET_DEBUG
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#define NET_DEBUG 1
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#endif
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static unsigned int net_debug = NET_DEBUG;
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typedef unsigned char uchar;
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/* Information that need to be kept for each board. */
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struct net_local {
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struct net_device_stats stats;
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long open_time; /* Useless example local info. */
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uint tx_started:1; /* Number of packet on the Tx queue. */
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uint tx_queue_ready:1; /* Tx queue is ready to be sent. */
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uint rx_started:1; /* Packets are Rxing. */
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uchar tx_queue; /* Number of packet on the Tx queue. */
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ushort tx_queue_len; /* Current length of the Tx queue. */
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spinlock_t lock;
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};
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/* Offsets from the base address. */
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#define STATUS 0
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#define TX_STATUS 0
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#define RX_STATUS 1
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#define TX_INTR 2 /* Bit-mapped interrupt enable registers. */
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#define RX_INTR 3
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#define TX_MODE 4
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#define RX_MODE 5
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#define CONFIG_0 6 /* Misc. configuration settings. */
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#define CONFIG_1 7
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/* Run-time register bank 2 definitions. */
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#define DATAPORT 8 /* Word-wide DMA or programmed-I/O dataport. */
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#define TX_START 10
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#define COL16CNTL 11 /* Controll Reg for 16 collisions */
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#define MODE13 13
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/* Fujitsu FMV-18x Card Configuration */
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#define FJ_STATUS0 0x10
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#define FJ_STATUS1 0x11
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#define FJ_CONFIG0 0x12
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#define FJ_CONFIG1 0x13
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#define FJ_MACADDR 0x14 /* 0x14 - 0x19 */
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#define FJ_BUFCNTL 0x1A
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#define FJ_BUFDATA 0x1C
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#define FMV18X_IO_EXTENT 32
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/* Index to functions, as function prototypes. */
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static int fmv18x_probe1(struct net_device *dev, short ioaddr);
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static int net_open(struct net_device *dev);
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static int net_send_packet(struct sk_buff *skb, struct net_device *dev);
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static irqreturn_t net_interrupt(int irq, void *dev_id, struct pt_regs *regs);
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static void net_rx(struct net_device *dev);
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static void net_timeout(struct net_device *dev);
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static int net_close(struct net_device *dev);
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static struct net_device_stats *net_get_stats(struct net_device *dev);
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static void set_multicast_list(struct net_device *dev);
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/* Check for a network adaptor of this type, and return '0' iff one exists.
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If dev->base_addr == 0, probe all likely locations.
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If dev->base_addr == 1, always return failure.
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If dev->base_addr == 2, allocate space for the device and return success
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(detachable devices only).
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*/
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static int io = 0x220;
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static int irq;
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struct net_device * __init fmv18x_probe(int unit)
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{
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struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
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unsigned *port;
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int err = 0;
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if (!dev)
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return ERR_PTR(-ENODEV);
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if (unit >= 0) {
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sprintf(dev->name, "eth%d", unit);
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netdev_boot_setup_check(dev);
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io = dev->base_addr;
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irq = dev->irq;
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}
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SET_MODULE_OWNER(dev);
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if (io > 0x1ff) { /* Check a single specified location. */
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err = fmv18x_probe1(dev, io);
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} else if (io != 0) { /* Don't probe at all. */
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err = -ENXIO;
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} else {
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for (port = fmv18x_probe_list; *port; port++)
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if (fmv18x_probe1(dev, *port) == 0)
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break;
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if (!*port)
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err = -ENODEV;
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}
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if (err)
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goto out;
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err = register_netdev(dev);
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if (err)
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goto out1;
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return dev;
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out1:
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free_irq(dev->irq, dev);
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release_region(dev->base_addr, FMV18X_IO_EXTENT);
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out:
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free_netdev(dev);
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return ERR_PTR(err);
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}
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/* The Fujitsu datasheet suggests that the NIC be probed for by checking its
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"signature", the default bit pattern after a reset. This *doesn't* work --
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there is no way to reset the bus interface without a complete power-cycle!
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It turns out that ATI came to the same conclusion I did: the only thing
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that can be done is checking a few bits and then diving right into MAC
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address check. */
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static int __init fmv18x_probe1(struct net_device *dev, short ioaddr)
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{
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char irqmap[4] = {3, 7, 10, 15};
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char irqmap_pnp[8] = {3, 4, 5, 7, 9, 10, 11, 15};
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unsigned int i, retval;
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struct net_local *lp;
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/* Resetting the chip doesn't reset the ISA interface, so don't bother.
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That means we have to be careful with the register values we probe for.
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*/
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if (!request_region(ioaddr, FMV18X_IO_EXTENT, DRV_NAME))
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return -EBUSY;
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dev->irq = irq;
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dev->base_addr = ioaddr;
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/* Check I/O address configuration and Fujitsu vendor code */
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if (inb(ioaddr+FJ_MACADDR ) != 0x00
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|| inb(ioaddr+FJ_MACADDR+1) != 0x00
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|| inb(ioaddr+FJ_MACADDR+2) != 0x0e) {
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retval = -ENODEV;
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goto out;
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}
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/* Check PnP mode for FMV-183/184/183A/184A. */
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/* This PnP routine is very poor. IO and IRQ should be known. */
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if (inb(ioaddr + FJ_STATUS1) & 0x20) {
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for (i = 0; i < 8; i++) {
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if (dev->irq == irqmap_pnp[i])
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break;
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}
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if (i == 8) {
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retval = -ENODEV;
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goto out;
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}
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} else {
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if (fmv18x_probe_list[inb(ioaddr + FJ_CONFIG0) & 0x07] != ioaddr)
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return -ENODEV;
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dev->irq = irqmap[(inb(ioaddr + FJ_CONFIG0)>>6) & 0x03];
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}
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/* Snarf the interrupt vector now. */
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retval = request_irq(dev->irq, &net_interrupt, 0, DRV_NAME, dev);
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if (retval) {
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printk ("FMV-18x found at %#3x, but it's unusable due to a conflict on"
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"IRQ %d.\n", ioaddr, dev->irq);
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goto out;
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}
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printk("%s: FMV-18x found at %#3x, IRQ %d, address ", dev->name,
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ioaddr, dev->irq);
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for(i = 0; i < 6; i++) {
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unsigned char val = inb(ioaddr + FJ_MACADDR + i);
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printk("%02x", val);
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dev->dev_addr[i] = val;
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}
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/* "FJ_STATUS0" 12 bit 0x0400 means use regular 100 ohm 10baseT signals,
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rather than 150 ohm shielded twisted pair compensation.
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0x0000 == auto-sense the interface
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0x0800 == use TP interface
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0x1800 == use coax interface
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*/
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{
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const char *porttype[] = {"auto-sense", "10baseT", "auto-sense", "10base2/5"};
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ushort setup_value = inb(ioaddr + FJ_STATUS0);
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switch( setup_value & 0x07 ){
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case 0x01 /* 10base5 */:
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case 0x02 /* 10base2 */: dev->if_port = 0x18; break;
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case 0x04 /* 10baseT */: dev->if_port = 0x08; break;
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default /* auto-sense*/: dev->if_port = 0x00; break;
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}
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printk(" %s interface.\n", porttype[(dev->if_port>>3) & 3]);
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}
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/* Initialize LAN Controller and LAN Card */
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outb(0xda, ioaddr + CONFIG_0); /* Initialize LAN Controller */
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outb(0x00, ioaddr + CONFIG_1); /* Stand by mode */
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outb(0x00, ioaddr + FJ_CONFIG1); /* Disable IRQ of LAN Card */
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outb(0x00, ioaddr + FJ_BUFCNTL); /* Reset ? I'm not sure (TAMIYA) */
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/* wait for a while */
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udelay(200);
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/* Set the station address in bank zero. */
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outb(0x00, ioaddr + CONFIG_1);
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for (i = 0; i < 6; i++)
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outb(dev->dev_addr[i], ioaddr + 8 + i);
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/* Switch to bank 1 and set the multicast table to accept none. */
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outb(0x04, ioaddr + CONFIG_1);
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for (i = 0; i < 8; i++)
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outb(0x00, ioaddr + 8 + i);
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/* Switch to bank 2 and lock our I/O address. */
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outb(0x08, ioaddr + CONFIG_1);
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outb(dev->if_port, ioaddr + MODE13);
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outb(0x00, ioaddr + COL16CNTL);
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if (net_debug)
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printk(version);
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/* Initialize the device structure. */
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dev->priv = kmalloc(sizeof(struct net_local), GFP_KERNEL);
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if (!dev->priv) {
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retval = -ENOMEM;
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goto out_irq;
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}
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memset(dev->priv, 0, sizeof(struct net_local));
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lp = dev->priv;
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spin_lock_init(&lp->lock);
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dev->open = net_open;
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dev->stop = net_close;
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dev->hard_start_xmit = net_send_packet;
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dev->tx_timeout = net_timeout;
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dev->watchdog_timeo = HZ/10;
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dev->get_stats = net_get_stats;
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dev->set_multicast_list = set_multicast_list;
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return 0;
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out_irq:
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free_irq(dev->irq, dev);
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out:
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release_region(ioaddr, FMV18X_IO_EXTENT);
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return retval;
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}
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static int net_open(struct net_device *dev)
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{
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struct net_local *lp = dev->priv;
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int ioaddr = dev->base_addr;
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/* Set the configuration register 0 to 32K 100ns. byte-wide memory,
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16 bit bus access, and two 4K Tx, enable the Rx and Tx. */
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outb(0x5a, ioaddr + CONFIG_0);
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/* Powerup and switch to register bank 2 for the run-time registers. */
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outb(0xe8, ioaddr + CONFIG_1);
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lp->tx_started = 0;
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lp->tx_queue_ready = 1;
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lp->rx_started = 0;
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lp->tx_queue = 0;
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lp->tx_queue_len = 0;
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/* Clear Tx and Rx Status */
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outb(0xff, ioaddr + TX_STATUS);
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|||
|
|
outb(0xff, ioaddr + RX_STATUS);
|
|||
|
|
lp->open_time = jiffies;
|
|||
|
|
|
|||
|
|
netif_start_queue(dev);
|
|||
|
|
|
|||
|
|
/* Enable the IRQ of the LAN Card */
|
|||
|
|
outb(0x80, ioaddr + FJ_CONFIG1);
|
|||
|
|
|
|||
|
|
/* Enable both Tx and Rx interrupts */
|
|||
|
|
outw(0x8182, ioaddr+TX_INTR);
|
|||
|
|
|
|||
|
|
return 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
static void net_timeout(struct net_device *dev)
|
|||
|
|
{
|
|||
|
|
struct net_local *lp = dev->priv;
|
|||
|
|
int ioaddr = dev->base_addr;
|
|||
|
|
unsigned long flags;
|
|||
|
|
|
|||
|
|
|
|||
|
|
printk(KERN_WARNING "%s: transmit timed out with status %04x, %s?\n", dev->name,
|
|||
|
|
htons(inw(ioaddr + TX_STATUS)),
|
|||
|
|
inb(ioaddr + TX_STATUS) & 0x80
|
|||
|
|
? "IRQ conflict" : "network cable problem");
|
|||
|
|
printk(KERN_WARNING "%s: timeout registers: %04x %04x %04x %04x %04x %04x %04x %04x.\n",
|
|||
|
|
dev->name, htons(inw(ioaddr + 0)),
|
|||
|
|
htons(inw(ioaddr + 2)), htons(inw(ioaddr + 4)),
|
|||
|
|
htons(inw(ioaddr + 6)), htons(inw(ioaddr + 8)),
|
|||
|
|
htons(inw(ioaddr +10)), htons(inw(ioaddr +12)),
|
|||
|
|
htons(inw(ioaddr +14)));
|
|||
|
|
printk(KERN_WARNING "eth card: %04x %04x\n",
|
|||
|
|
htons(inw(ioaddr+FJ_STATUS0)),
|
|||
|
|
htons(inw(ioaddr+FJ_CONFIG0)));
|
|||
|
|
lp->stats.tx_errors++;
|
|||
|
|
/* ToDo: We should try to restart the adaptor... */
|
|||
|
|
spin_lock_irqsave(&lp->lock, flags);
|
|||
|
|
|
|||
|
|
/* Initialize LAN Controller and LAN Card */
|
|||
|
|
outb(0xda, ioaddr + CONFIG_0); /* Initialize LAN Controller */
|
|||
|
|
outb(0x00, ioaddr + CONFIG_1); /* Stand by mode */
|
|||
|
|
outb(0x00, ioaddr + FJ_CONFIG1); /* Disable IRQ of LAN Card */
|
|||
|
|
outb(0x00, ioaddr + FJ_BUFCNTL); /* Reset ? I'm not sure */
|
|||
|
|
net_open(dev);
|
|||
|
|
spin_unlock_irqrestore(&lp->lock, flags);
|
|||
|
|
|
|||
|
|
netif_wake_queue(dev);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
static int net_send_packet(struct sk_buff *skb, struct net_device *dev)
|
|||
|
|
{
|
|||
|
|
struct net_local *lp = dev->priv;
|
|||
|
|
int ioaddr = dev->base_addr;
|
|||
|
|
short length = skb->len;
|
|||
|
|
unsigned char *buf;
|
|||
|
|
unsigned long flags;
|
|||
|
|
|
|||
|
|
/* Block a transmit from overlapping. */
|
|||
|
|
|
|||
|
|
if (length > ETH_FRAME_LEN) {
|
|||
|
|
if (net_debug)
|
|||
|
|
printk("%s: Attempting to send a large packet (%d bytes).\n",
|
|||
|
|
dev->name, length);
|
|||
|
|
return 1;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (length < ETH_ZLEN) {
|
|||
|
|
skb = skb_padto(skb, ETH_ZLEN);
|
|||
|
|
if (skb == NULL)
|
|||
|
|
return 0;
|
|||
|
|
length = ETH_ZLEN;
|
|||
|
|
}
|
|||
|
|
buf = skb->data;
|
|||
|
|
|
|||
|
|
if (net_debug > 4)
|
|||
|
|
printk("%s: Transmitting a packet of length %lu.\n", dev->name,
|
|||
|
|
(unsigned long)skb->len);
|
|||
|
|
/* We may not start transmitting unless we finish transferring
|
|||
|
|
a packet into the Tx queue. During executing the following
|
|||
|
|
codes we possibly catch a Tx interrupt. Thus we flag off
|
|||
|
|
tx_queue_ready, so that we prevent the interrupt routine
|
|||
|
|
(net_interrupt) to start transmitting. */
|
|||
|
|
spin_lock_irqsave(&lp->lock, flags);
|
|||
|
|
lp->tx_queue_ready = 0;
|
|||
|
|
{
|
|||
|
|
outw(length, ioaddr + DATAPORT);
|
|||
|
|
outsw(ioaddr + DATAPORT, buf, (length + 1) >> 1);
|
|||
|
|
lp->tx_queue++;
|
|||
|
|
lp->tx_queue_len += length + 2;
|
|||
|
|
}
|
|||
|
|
lp->tx_queue_ready = 1;
|
|||
|
|
spin_unlock_irqrestore(&lp->lock, flags);
|
|||
|
|
|
|||
|
|
if (lp->tx_started == 0) {
|
|||
|
|
/* If the Tx is idle, always trigger a transmit. */
|
|||
|
|
outb(0x80 | lp->tx_queue, ioaddr + TX_START);
|
|||
|
|
lp->tx_queue = 0;
|
|||
|
|
lp->tx_queue_len = 0;
|
|||
|
|
dev->trans_start = jiffies;
|
|||
|
|
lp->tx_started = 1;
|
|||
|
|
} else if (lp->tx_queue_len >= 4096 - 1502) /* No room for a packet */
|
|||
|
|
netif_stop_queue(dev);
|
|||
|
|
|
|||
|
|
dev_kfree_skb(skb);
|
|||
|
|
return 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/* The typical workload of the driver:
|
|||
|
|
Handle the network interface interrupts. */
|
|||
|
|
static irqreturn_t
|
|||
|
|
net_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
|||
|
|
{
|
|||
|
|
struct net_device *dev = dev_id;
|
|||
|
|
struct net_local *lp;
|
|||
|
|
int ioaddr, status;
|
|||
|
|
|
|||
|
|
ioaddr = dev->base_addr;
|
|||
|
|
lp = dev->priv;
|
|||
|
|
status = inw(ioaddr + TX_STATUS);
|
|||
|
|
outw(status, ioaddr + TX_STATUS);
|
|||
|
|
|
|||
|
|
if (net_debug > 4)
|
|||
|
|
printk("%s: Interrupt with status %04x.\n", dev->name, status);
|
|||
|
|
if (lp->rx_started == 0 &&
|
|||
|
|
(status & 0xff00 || (inb(ioaddr + RX_MODE) & 0x40) == 0)) {
|
|||
|
|
/* Got a packet(s).
|
|||
|
|
We cannot execute net_rx more than once at the same time for
|
|||
|
|
the same device. During executing net_rx, we possibly catch a
|
|||
|
|
Tx interrupt. Thus we flag on rx_started, so that we prevent
|
|||
|
|
the interrupt routine (net_interrupt) to dive into net_rx
|
|||
|
|
again. */
|
|||
|
|
lp->rx_started = 1;
|
|||
|
|
outb(0x00, ioaddr + RX_INTR); /* Disable RX intr. */
|
|||
|
|
net_rx(dev);
|
|||
|
|
outb(0x81, ioaddr + RX_INTR); /* Enable RX intr. */
|
|||
|
|
lp->rx_started = 0;
|
|||
|
|
}
|
|||
|
|
if (status & 0x00ff) {
|
|||
|
|
if (status & 0x02) {
|
|||
|
|
/* More than 16 collisions occurred */
|
|||
|
|
if (net_debug > 4)
|
|||
|
|
printk("%s: 16 Collision occur during Txing.\n", dev->name);
|
|||
|
|
/* Cancel sending a packet. */
|
|||
|
|
outb(0x03, ioaddr + COL16CNTL);
|
|||
|
|
lp->stats.collisions++;
|
|||
|
|
}
|
|||
|
|
if (status & 0x82) {
|
|||
|
|
spin_lock(&lp->lock);
|
|||
|
|
lp->stats.tx_packets++;
|
|||
|
|
if (lp->tx_queue && lp->tx_queue_ready) {
|
|||
|
|
outb(0x80 | lp->tx_queue, ioaddr + TX_START);
|
|||
|
|
lp->tx_queue = 0;
|
|||
|
|
lp->tx_queue_len = 0;
|
|||
|
|
dev->trans_start = jiffies;
|
|||
|
|
netif_wake_queue(dev); /* Inform upper layers. */
|
|||
|
|
} else {
|
|||
|
|
lp->tx_started = 0;
|
|||
|
|
netif_wake_queue(dev); /* Inform upper layers. */
|
|||
|
|
}
|
|||
|
|
spin_unlock(&lp->lock);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return IRQ_RETVAL(status);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/* We have a good packet(s), get it/them out of the buffers. */
|
|||
|
|
static void net_rx(struct net_device *dev)
|
|||
|
|
{
|
|||
|
|
struct net_local *lp = dev->priv;
|
|||
|
|
int ioaddr = dev->base_addr;
|
|||
|
|
int boguscount = 5;
|
|||
|
|
|
|||
|
|
while ((inb(ioaddr + RX_MODE) & 0x40) == 0) {
|
|||
|
|
/* Clear PKT_RDY bit: by agy 19940922 */
|
|||
|
|
/* outb(0x80, ioaddr + RX_STATUS); */
|
|||
|
|
ushort status = inw(ioaddr + DATAPORT);
|
|||
|
|
|
|||
|
|
if (net_debug > 4)
|
|||
|
|
printk("%s: Rxing packet mode %02x status %04x.\n",
|
|||
|
|
dev->name, inb(ioaddr + RX_MODE), status);
|
|||
|
|
#ifndef final_version
|
|||
|
|
if (status == 0) {
|
|||
|
|
outb(0x05, ioaddr + 14);
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
if ((status & 0xF0) != 0x20) { /* There was an error. */
|
|||
|
|
lp->stats.rx_errors++;
|
|||
|
|
if (status & 0x08) lp->stats.rx_length_errors++;
|
|||
|
|
if (status & 0x04) lp->stats.rx_frame_errors++;
|
|||
|
|
if (status & 0x02) lp->stats.rx_crc_errors++;
|
|||
|
|
if (status & 0x01) lp->stats.rx_over_errors++;
|
|||
|
|
} else {
|
|||
|
|
ushort pkt_len = inw(ioaddr + DATAPORT);
|
|||
|
|
/* Malloc up new buffer. */
|
|||
|
|
struct sk_buff *skb;
|
|||
|
|
|
|||
|
|
if (pkt_len > 1550) {
|
|||
|
|
printk("%s: The FMV-18x claimed a very large packet, size %d.\n",
|
|||
|
|
dev->name, pkt_len);
|
|||
|
|
outb(0x05, ioaddr + 14);
|
|||
|
|
lp->stats.rx_errors++;
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
skb = dev_alloc_skb(pkt_len+3);
|
|||
|
|
if (skb == NULL) {
|
|||
|
|
printk("%s: Memory squeeze, dropping packet (len %d).\n",
|
|||
|
|
dev->name, pkt_len);
|
|||
|
|
outb(0x05, ioaddr + 14);
|
|||
|
|
lp->stats.rx_dropped++;
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
skb->dev = dev;
|
|||
|
|
skb_reserve(skb,2);
|
|||
|
|
|
|||
|
|
insw(ioaddr + DATAPORT, skb_put(skb,pkt_len), (pkt_len + 1) >> 1);
|
|||
|
|
|
|||
|
|
if (net_debug > 5) {
|
|||
|
|
int i;
|
|||
|
|
printk("%s: Rxed packet of length %d: ", dev->name, pkt_len);
|
|||
|
|
for (i = 0; i < 14; i++)
|
|||
|
|
printk(" %02x", skb->data[i]);
|
|||
|
|
printk(".\n");
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
skb->protocol=eth_type_trans(skb, dev);
|
|||
|
|
netif_rx(skb);
|
|||
|
|
dev->last_rx = jiffies;
|
|||
|
|
lp->stats.rx_packets++;
|
|||
|
|
lp->stats.rx_bytes += pkt_len;
|
|||
|
|
}
|
|||
|
|
if (--boguscount <= 0)
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/* If any worth-while packets have been received, dev_rint()
|
|||
|
|
has done a mark_bh(NET_BH) for us and will work on them
|
|||
|
|
when we get to the bottom-half routine. */
|
|||
|
|
{
|
|||
|
|
int i;
|
|||
|
|
for (i = 0; i < 20; i++) {
|
|||
|
|
if ((inb(ioaddr + RX_MODE) & 0x40) == 0x40)
|
|||
|
|
break;
|
|||
|
|
(void)inw(ioaddr + DATAPORT); /* dummy status read */
|
|||
|
|
outb(0x05, ioaddr + 14);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (net_debug > 5 && i > 0)
|
|||
|
|
printk("%s: Exint Rx packet with mode %02x after %d ticks.\n",
|
|||
|
|
dev->name, inb(ioaddr + RX_MODE), i);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/* The inverse routine to net_open(). */
|
|||
|
|
static int net_close(struct net_device *dev)
|
|||
|
|
{
|
|||
|
|
int ioaddr = dev->base_addr;
|
|||
|
|
|
|||
|
|
((struct net_local *)dev->priv)->open_time = 0;
|
|||
|
|
|
|||
|
|
netif_stop_queue(dev);
|
|||
|
|
|
|||
|
|
/* Set configuration register 0 to disable Tx and Rx. */
|
|||
|
|
outb(0xda, ioaddr + CONFIG_0);
|
|||
|
|
|
|||
|
|
/* Update the statistics -- ToDo. */
|
|||
|
|
|
|||
|
|
/* Power-down the chip. Green, green, green! */
|
|||
|
|
outb(0x00, ioaddr + CONFIG_1);
|
|||
|
|
|
|||
|
|
/* Set the ethernet adaptor disable IRQ */
|
|||
|
|
outb(0x00, ioaddr + FJ_CONFIG1);
|
|||
|
|
|
|||
|
|
return 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/* Get the current statistics. This may be called with the card open or
|
|||
|
|
closed. */
|
|||
|
|
static struct net_device_stats *net_get_stats(struct net_device *dev)
|
|||
|
|
{
|
|||
|
|
struct net_local *lp = dev->priv;
|
|||
|
|
return &lp->stats;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/* Set or clear the multicast filter for this adaptor.
|
|||
|
|
num_addrs == -1 Promiscuous mode, receive all packets
|
|||
|
|
num_addrs == 0 Normal mode, clear multicast list
|
|||
|
|
num_addrs > 0 Multicast mode, receive normal and MC packets, and do
|
|||
|
|
best-effort filtering.
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
static void set_multicast_list(struct net_device *dev)
|
|||
|
|
{
|
|||
|
|
short ioaddr = dev->base_addr;
|
|||
|
|
if (dev->mc_count || dev->flags&(IFF_PROMISC|IFF_ALLMULTI))
|
|||
|
|
{
|
|||
|
|
/*
|
|||
|
|
* We must make the kernel realise we had to move
|
|||
|
|
* into promisc mode or we start all out war on
|
|||
|
|
* the cable. - AC
|
|||
|
|
*/
|
|||
|
|
dev->flags|=IFF_PROMISC;
|
|||
|
|
|
|||
|
|
outb(3, ioaddr + RX_MODE); /* Enable promiscuous mode */
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
outb(2, ioaddr + RX_MODE); /* Disable promiscuous, use normal mode */
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
#ifdef MODULE
|
|||
|
|
static struct net_device *dev_fmv18x;
|
|||
|
|
|
|||
|
|
MODULE_PARM(io, "i");
|
|||
|
|
MODULE_PARM(irq, "i");
|
|||
|
|
MODULE_PARM(net_debug, "i");
|
|||
|
|
MODULE_PARM_DESC(io, "FMV-18X I/O address");
|
|||
|
|
MODULE_PARM_DESC(irq, "FMV-18X IRQ number");
|
|||
|
|
MODULE_PARM_DESC(net_debug, "FMV-18X debug level (0-1,5-6)");
|
|||
|
|
MODULE_LICENSE("GPL");
|
|||
|
|
|
|||
|
|
int init_module(void)
|
|||
|
|
{
|
|||
|
|
if (io == 0)
|
|||
|
|
printk("fmv18x: You should not use auto-probing with insmod!\n");
|
|||
|
|
dev_fmv18x = fmv18x_probe(-1);
|
|||
|
|
if (IS_ERR(dev_fmv18x))
|
|||
|
|
return PTR_ERR(dev_fmv18x);
|
|||
|
|
return 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
void
|
|||
|
|
cleanup_module(void)
|
|||
|
|
{
|
|||
|
|
unregister_netdev(dev_fmv18x);
|
|||
|
|
free_irq(dev_fmv18x->irq, dev_fmv18x);
|
|||
|
|
release_region(dev_fmv18x->base_addr, FMV18X_IO_EXTENT);
|
|||
|
|
free_netdev(dev_fmv18x);
|
|||
|
|
}
|
|||
|
|
#endif /* MODULE */
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
* Local variables:
|
|||
|
|
* compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c fmv18x.c"
|
|||
|
|
* version-control: t
|
|||
|
|
* kept-new-versions: 5
|
|||
|
|
* tab-width: 4
|
|||
|
|
* c-indent-level: 4
|
|||
|
|
* End:
|
|||
|
|
*/
|