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1275 |
phoenix |
/* ni5010.c: A network driver for the MiCom-Interlan NI5010 ethercard.
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*
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* Copyright 1996,1997 Jan-Pascal van Best and Andreas Mohr.
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*
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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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*
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* The authors may be reached as:
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* jvbest@wi.leidenuniv.nl a.mohr@mailto.de
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* or by snail mail as
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* Jan-Pascal van Best Andreas Mohr
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* Klikspaanweg 58-4 Stauferstr. 6
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* 2324 LZ Leiden D-71272 Renningen
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* The Netherlands Germany
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*
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* Sources:
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* Donald Becker's "skeleton.c"
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* Crynwr ni5010 packet driver
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*
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* Changes:
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* v0.0: First test version
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* v0.1: First working version
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* v0.2:
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* v0.3->v0.90: Now demand setting io and irq when loading as module
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* 970430 v0.91: modified for Linux 2.1.14
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* v0.92: Implemented Andreas' (better) NI5010 probe
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* 970503 v0.93: Fixed auto-irq failure on warm reboot (JB)
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* 970623 v1.00: First kernel version (AM)
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* 970814 v1.01: Added detection of onboard receive buffer size (AM)
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* Bugs:
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* - None known...
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* - Note that you have to patch ifconfig for the new /proc/net/dev
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* format. It gives incorrect stats otherwise.
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*
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* To do:
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* Fix all bugs :-)
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* Move some stuff to chipset_init()
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* Handle xmt errors other than collisions
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* Complete merge with Andreas' driver
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* Implement ring buffers (Is this useful? You can't squeeze
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* too many packet in a 2k buffer!)
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* Implement DMA (Again, is this useful? Some docs says DMA is
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* slower than programmed I/O)
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*
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* Compile with:
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* gcc -O2 -fomit-frame-pointer -m486 -D__KERNEL__ \
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* -DMODULE -c ni5010.c
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*
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* Insert with e.g.:
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* insmod ni5010.o io=0x300 irq=5
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/ioport.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/init.h>
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#include <asm/bitops.h>
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#include <asm/io.h>
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#include <asm/dma.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 "ni5010.h"
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static const char *boardname = "NI5010";
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static char *version =
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"ni5010.c: v1.00 06/23/97 Jan-Pascal van Best and Andreas Mohr\n";
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/* bufsize_rcv == 0 means autoprobing */
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static unsigned int bufsize_rcv;
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#define jumpered_interrupts /* IRQ line jumpered on board */
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#undef jumpered_dma /* No DMA used */
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#undef FULL_IODETECT /* Only detect in portlist */
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#ifndef FULL_IODETECT
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/* A zero-terminated list of I/O addresses to be probed. */
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static unsigned int ni5010_portlist[] __initdata =
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{ 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0 };
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#endif
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/* Use 0 for production, 1 for verification, >2 for debug */
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#ifndef NI5010_DEBUG
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#define NI5010_DEBUG 0
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#endif
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/* Information that needs to be kept for each board. */
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struct ni5010_local {
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struct net_device_stats stats;
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int o_pkt_size;
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int i_pkt_size;
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};
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/* Index to functions, as function prototypes. */
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extern int ni5010_probe(struct net_device *dev);
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static int ni5010_probe1(struct net_device *dev, int ioaddr);
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static int ni5010_open(struct net_device *dev);
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static int ni5010_send_packet(struct sk_buff *skb, struct net_device *dev);
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static void ni5010_interrupt(int irq, void *dev_id, struct pt_regs *regs);
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static void ni5010_rx(struct net_device *dev);
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static void ni5010_timeout(struct net_device *dev);
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static int ni5010_close(struct net_device *dev);
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static struct net_device_stats *ni5010_get_stats(struct net_device *dev);
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static void ni5010_set_multicast_list(struct net_device *dev);
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static void reset_receiver(struct net_device *dev);
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static int process_xmt_interrupt(struct net_device *dev);
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#define tx_done(dev) 1
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static void hardware_send_packet(struct net_device *dev, char *buf, int length, int pad);
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static void chipset_init(struct net_device *dev, int startp);
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static void dump_packet(void *buf, int len);
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static void ni5010_show_registers(struct net_device *dev);
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int __init ni5010_probe(struct net_device *dev)
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{
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int *port;
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int base_addr = dev->base_addr;
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PRINTK2((KERN_DEBUG "%s: Entering ni5010_probe\n", dev->name));
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SET_MODULE_OWNER(dev);
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if (base_addr > 0x1ff) /* Check a single specified location. */
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return ni5010_probe1(dev, base_addr);
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else if (base_addr != 0) /* Don't probe at all. */
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return -ENXIO;
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#ifdef FULL_IODETECT
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for (int ioaddr=0x200; ioaddr<0x400; ioaddr+=0x20) {
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if (check_region(ioaddr, NI5010_IO_EXTENT))
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continue;
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if (ni5010_probe1(dev, ioaddr) == 0)
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return 0;
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}
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#else
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for (port = ni5010_portlist; *port; port++) {
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int ioaddr = *port;
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if (check_region(ioaddr, NI5010_IO_EXTENT))
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continue;
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if (ni5010_probe1(dev, ioaddr) == 0)
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return 0;
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}
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#endif /* FULL_IODETECT */
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return -ENODEV;
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}
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static inline int rd_port(int ioaddr)
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{
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inb(IE_RBUF);
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return inb(IE_SAPROM);
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}
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static void __init trigger_irq(int ioaddr)
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{
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outb(0x00, EDLC_RESET); /* Clear EDLC hold RESET state */
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outb(0x00, IE_RESET); /* Board reset */
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outb(0x00, EDLC_XMASK); /* Disable all Xmt interrupts */
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outb(0x00, EDLC_RMASK); /* Disable all Rcv interrupt */
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outb(0xff, EDLC_XCLR); /* Clear all pending Xmt interrupts */
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outb(0xff, EDLC_RCLR); /* Clear all pending Rcv interrupts */
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/*
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* Transmit packet mode: Ignore parity, Power xcvr,
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* Enable loopback
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*/
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outb(XMD_IG_PAR | XMD_T_MODE | XMD_LBC, EDLC_XMODE);
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outb(RMD_BROADCAST, EDLC_RMODE); /* Receive normal&broadcast */
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outb(XM_ALL, EDLC_XMASK); /* Enable all Xmt interrupts */
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udelay(50); /* FIXME: Necessary? */
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outb(MM_EN_XMT|MM_MUX, IE_MMODE); /* Start transmission */
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}
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/*
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* This is the real probe routine. Linux has a history of friendly device
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* probes on the ISA bus. A good device probes avoids doing writes, and
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* verifies that the correct device exists and functions.
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*/
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static int __init ni5010_probe1(struct net_device *dev, int ioaddr)
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{
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static unsigned version_printed;
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int i;
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unsigned int data = 0;
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int boguscount = 40;
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/*
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* This is no "official" probe method, I've rather tested which
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* probe works best with my seven NI5010 cards
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* (they have very different serial numbers)
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* Suggestions or failure reports are very, very welcome !
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* But I think it is a relatively good probe method
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* since it doesn't use any "outb"
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* It should be nearly 100% reliable !
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* well-known WARNING: this probe method (like many others)
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* will hang the system if a NE2000 card region is probed !
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*
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* - Andreas
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*/
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PRINTK2((KERN_DEBUG "%s: entering ni5010_probe1(%#3x)\n",
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dev->name, ioaddr));
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if (inb(ioaddr+0) == 0xff) return -ENODEV;
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while ( (rd_port(ioaddr) & rd_port(ioaddr) & rd_port(ioaddr) &
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rd_port(ioaddr) & rd_port(ioaddr) & rd_port(ioaddr)) != 0xff)
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{
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if (boguscount-- == 0) return -ENODEV;
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}
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PRINTK2((KERN_DEBUG "%s: I/O #1 passed!\n", dev->name));
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for (i=0; i<32; i++)
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if ( (data = rd_port(ioaddr)) != 0xff) break;
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if (data==0xff) return -ENODEV;
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PRINTK2((KERN_DEBUG "%s: I/O #2 passed!\n", dev->name));
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if ( (data == SA_ADDR0) &&
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(rd_port(ioaddr) == SA_ADDR1) &&
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(rd_port(ioaddr) == SA_ADDR2) ) {
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for (i=0; i<4; i++) rd_port(ioaddr);
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if ( (rd_port(ioaddr) != NI5010_MAGICVAL1) ||
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(rd_port(ioaddr) != NI5010_MAGICVAL2) ) {
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return -ENODEV;
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}
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} else return -ENODEV;
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PRINTK2((KERN_DEBUG "%s: I/O #3 passed!\n", dev->name));
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if (NI5010_DEBUG && version_printed++ == 0)
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printk(KERN_INFO "%s", version);
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printk("NI5010 ethercard probe at 0x%x: ", ioaddr);
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dev->base_addr = ioaddr;
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for (i=0; i<6; i++) {
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outw(i, IE_GP);
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printk("%2.2x ", dev->dev_addr[i] = inb(IE_SAPROM));
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}
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PRINTK2((KERN_DEBUG "%s: I/O #4 passed!\n", dev->name));
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#ifdef jumpered_interrupts
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if (dev->irq == 0xff)
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;
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else if (dev->irq < 2) {
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PRINTK2((KERN_DEBUG "%s: I/O #5 passed!\n", dev->name));
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autoirq_setup(0);
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trigger_irq(ioaddr);
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dev->irq = autoirq_report(2);
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PRINTK2((KERN_DEBUG "%s: I/O #6 passed!\n", dev->name));
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if (dev->irq == 0) {
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printk(KERN_WARNING "%s: no IRQ found!\n", dev->name);
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return -EAGAIN;
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}
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PRINTK2((KERN_DEBUG "%s: I/O #7 passed!\n", dev->name));
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} else if (dev->irq == 2) {
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dev->irq = 9;
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}
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#endif /* jumpered_irq */
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PRINTK2((KERN_DEBUG "%s: I/O #9 passed!\n", dev->name));
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275 |
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/* DMA is not supported (yet?), so no use detecting it */
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278 |
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if (dev->priv == NULL) {
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dev->priv = kmalloc(sizeof(struct ni5010_local), GFP_KERNEL|GFP_DMA);
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280 |
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if (dev->priv == NULL) {
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printk(KERN_WARNING "%s: Failed to allocate private memory\n", dev->name);
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282 |
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return -ENOMEM;
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283 |
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}
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284 |
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}
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285 |
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|
286 |
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PRINTK2((KERN_DEBUG "%s: I/O #10 passed!\n", dev->name));
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287 |
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|
288 |
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/* get the size of the onboard receive buffer
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289 |
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* higher addresses than bufsize are wrapped into real buffer
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* i.e. data for offs. 0x801 is written to 0x1 with a 2K onboard buffer
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291 |
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*/
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292 |
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if (!bufsize_rcv) {
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293 |
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outb(1, IE_MMODE); /* Put Rcv buffer on system bus */
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outw(0, IE_GP); /* Point GP at start of packet */
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outb(0, IE_RBUF); /* set buffer byte 0 to 0 */
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for (i = 1; i < 0xff; i++) {
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297 |
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outw(i << 8, IE_GP); /* Point GP at packet size to be tested */
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298 |
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outb(i, IE_RBUF);
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299 |
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outw(0x0, IE_GP); /* Point GP at start of packet */
|
300 |
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data = inb(IE_RBUF);
|
301 |
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if (data == i) break;
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}
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303 |
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bufsize_rcv = i << 8;
|
304 |
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outw(0, IE_GP); /* Point GP at start of packet */
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305 |
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outb(0, IE_RBUF); /* set buffer byte 0 to 0 again */
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}
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307 |
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printk("// bufsize rcv/xmt=%d/%d\n", bufsize_rcv, NI5010_BUFSIZE);
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memset(dev->priv, 0, sizeof(struct ni5010_local));
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309 |
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|
310 |
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/* Grab the region so we can find another board if autoIRQ fails. */
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311 |
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request_region(ioaddr, NI5010_IO_EXTENT, boardname);
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312 |
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313 |
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dev->open = ni5010_open;
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314 |
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dev->stop = ni5010_close;
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315 |
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dev->hard_start_xmit = ni5010_send_packet;
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dev->get_stats = ni5010_get_stats;
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317 |
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dev->set_multicast_list = ni5010_set_multicast_list;
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318 |
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dev->tx_timeout = ni5010_timeout;
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319 |
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dev->watchdog_timeo = HZ/20;
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320 |
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|
321 |
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/* Fill in the fields of the device structure with ethernet values. */
|
322 |
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ether_setup(dev);
|
323 |
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|
324 |
|
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dev->flags &= ~IFF_MULTICAST; /* Multicast doesn't work */
|
325 |
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|
326 |
|
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/* Shut up the ni5010 */
|
327 |
|
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outb(0, EDLC_RMASK); /* Mask all receive interrupts */
|
328 |
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outb(0, EDLC_XMASK); /* Mask all xmit interrupts */
|
329 |
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outb(0xff, EDLC_RCLR); /* Kill all pending rcv interrupts */
|
330 |
|
|
outb(0xff, EDLC_XCLR); /* Kill all pending xmt interrupts */
|
331 |
|
|
|
332 |
|
|
printk(KERN_INFO "%s: NI5010 found at 0x%x, using IRQ %d", dev->name, ioaddr, dev->irq);
|
333 |
|
|
if (dev->dma) printk(" & DMA %d", dev->dma);
|
334 |
|
|
printk(".\n");
|
335 |
|
|
|
336 |
|
|
printk(KERN_INFO "Join the NI5010 driver development team!\n");
|
337 |
|
|
printk(KERN_INFO "Mail to a.mohr@mailto.de or jvbest@wi.leidenuniv.nl\n");
|
338 |
|
|
return 0;
|
339 |
|
|
}
|
340 |
|
|
|
341 |
|
|
/*
|
342 |
|
|
* Open/initialize the board. This is called (in the current kernel)
|
343 |
|
|
* sometime after booting when the 'ifconfig' program is run.
|
344 |
|
|
*
|
345 |
|
|
* This routine should set everything up anew at each open, even
|
346 |
|
|
* registers that "should" only need to be set once at boot, so that
|
347 |
|
|
* there is non-reboot way to recover if something goes wrong.
|
348 |
|
|
*/
|
349 |
|
|
|
350 |
|
|
static int ni5010_open(struct net_device *dev)
|
351 |
|
|
{
|
352 |
|
|
int ioaddr = dev->base_addr;
|
353 |
|
|
int i;
|
354 |
|
|
|
355 |
|
|
PRINTK2((KERN_DEBUG "%s: entering ni5010_open()\n", dev->name));
|
356 |
|
|
|
357 |
|
|
if (request_irq(dev->irq, &ni5010_interrupt, 0, boardname, dev)) {
|
358 |
|
|
printk(KERN_WARNING "%s: Cannot get irq %#2x\n", dev->name, dev->irq);
|
359 |
|
|
return -EAGAIN;
|
360 |
|
|
}
|
361 |
|
|
PRINTK3((KERN_DEBUG "%s: passed open() #1\n", dev->name));
|
362 |
|
|
/*
|
363 |
|
|
* Always allocate the DMA channel after the IRQ,
|
364 |
|
|
* and clean up on failure.
|
365 |
|
|
*/
|
366 |
|
|
#ifdef jumpered_dma
|
367 |
|
|
if (request_dma(dev->dma, cardname)) {
|
368 |
|
|
printk(KERN_WARNING "%s: Cannot get dma %#2x\n", dev->name, dev->dma);
|
369 |
|
|
free_irq(dev->irq, NULL);
|
370 |
|
|
return -EAGAIN;
|
371 |
|
|
}
|
372 |
|
|
#endif /* jumpered_dma */
|
373 |
|
|
|
374 |
|
|
PRINTK3((KERN_DEBUG "%s: passed open() #2\n", dev->name));
|
375 |
|
|
/* Reset the hardware here. Don't forget to set the station address. */
|
376 |
|
|
|
377 |
|
|
outb(RS_RESET, EDLC_RESET); /* Hold up EDLC_RESET while configing board */
|
378 |
|
|
outb(0, IE_RESET); /* Hardware reset of ni5010 board */
|
379 |
|
|
outb(XMD_LBC, EDLC_XMODE); /* Only loopback xmits */
|
380 |
|
|
|
381 |
|
|
PRINTK3((KERN_DEBUG "%s: passed open() #3\n", dev->name));
|
382 |
|
|
/* Set the station address */
|
383 |
|
|
for(i = 0;i < 6; i++) {
|
384 |
|
|
outb(dev->dev_addr[i], EDLC_ADDR + i);
|
385 |
|
|
}
|
386 |
|
|
|
387 |
|
|
PRINTK3((KERN_DEBUG "%s: Initialising ni5010\n", dev->name));
|
388 |
|
|
outb(0, EDLC_XMASK); /* No xmit interrupts for now */
|
389 |
|
|
outb(XMD_IG_PAR | XMD_T_MODE | XMD_LBC, EDLC_XMODE);
|
390 |
|
|
/* Normal packet xmit mode */
|
391 |
|
|
outb(0xff, EDLC_XCLR); /* Clear all pending xmit interrupts */
|
392 |
|
|
outb(RMD_BROADCAST, EDLC_RMODE);
|
393 |
|
|
/* Receive broadcast and normal packets */
|
394 |
|
|
reset_receiver(dev); /* Ready ni5010 for receiving packets */
|
395 |
|
|
|
396 |
|
|
outb(0, EDLC_RESET); /* Un-reset the ni5010 */
|
397 |
|
|
|
398 |
|
|
netif_start_queue(dev);
|
399 |
|
|
|
400 |
|
|
if (NI5010_DEBUG) ni5010_show_registers(dev);
|
401 |
|
|
|
402 |
|
|
PRINTK((KERN_DEBUG "%s: open successful\n", dev->name));
|
403 |
|
|
return 0;
|
404 |
|
|
}
|
405 |
|
|
|
406 |
|
|
static void reset_receiver(struct net_device *dev)
|
407 |
|
|
{
|
408 |
|
|
int ioaddr = dev->base_addr;
|
409 |
|
|
|
410 |
|
|
PRINTK3((KERN_DEBUG "%s: resetting receiver\n", dev->name));
|
411 |
|
|
outw(0, IE_GP); /* Receive packet at start of buffer */
|
412 |
|
|
outb(0xff, EDLC_RCLR); /* Clear all pending rcv interrupts */
|
413 |
|
|
outb(0, IE_MMODE); /* Put EDLC to rcv buffer */
|
414 |
|
|
outb(MM_EN_RCV, IE_MMODE); /* Enable rcv */
|
415 |
|
|
outb(0xff, EDLC_RMASK); /* Enable all rcv interrupts */
|
416 |
|
|
}
|
417 |
|
|
|
418 |
|
|
static void ni5010_timeout(struct net_device *dev)
|
419 |
|
|
{
|
420 |
|
|
printk(KERN_WARNING "%s: transmit timed out, %s?\n", dev->name,
|
421 |
|
|
tx_done(dev) ? "IRQ conflict" : "network cable problem");
|
422 |
|
|
/* Try to restart the adaptor. */
|
423 |
|
|
/* FIXME: Give it a real kick here */
|
424 |
|
|
chipset_init(dev, 1);
|
425 |
|
|
dev->trans_start = jiffies;
|
426 |
|
|
netif_wake_queue(dev);
|
427 |
|
|
}
|
428 |
|
|
|
429 |
|
|
static int ni5010_send_packet(struct sk_buff *skb, struct net_device *dev)
|
430 |
|
|
{
|
431 |
|
|
int length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
|
432 |
|
|
|
433 |
|
|
PRINTK2((KERN_DEBUG "%s: entering ni5010_send_packet\n", dev->name));
|
434 |
|
|
|
435 |
|
|
/*
|
436 |
|
|
* Block sending
|
437 |
|
|
*/
|
438 |
|
|
|
439 |
|
|
netif_stop_queue(dev);
|
440 |
|
|
hardware_send_packet(dev, (unsigned char *)skb->data, skb->len, length-skb->len);
|
441 |
|
|
dev->trans_start = jiffies;
|
442 |
|
|
dev_kfree_skb (skb);
|
443 |
|
|
return 0;
|
444 |
|
|
}
|
445 |
|
|
|
446 |
|
|
/*
|
447 |
|
|
* The typical workload of the driver:
|
448 |
|
|
* Handle the network interface interrupts.
|
449 |
|
|
*/
|
450 |
|
|
static void ni5010_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
451 |
|
|
{
|
452 |
|
|
struct net_device *dev = dev_id;
|
453 |
|
|
struct ni5010_local *lp;
|
454 |
|
|
int ioaddr, status;
|
455 |
|
|
int xmit_was_error = 0;
|
456 |
|
|
|
457 |
|
|
PRINTK2((KERN_DEBUG "%s: entering ni5010_interrupt\n", dev->name));
|
458 |
|
|
|
459 |
|
|
ioaddr = dev->base_addr;
|
460 |
|
|
lp = (struct ni5010_local *)dev->priv;
|
461 |
|
|
|
462 |
|
|
status = inb(IE_ISTAT);
|
463 |
|
|
PRINTK3((KERN_DEBUG "%s: IE_ISTAT = %#02x\n", dev->name, status));
|
464 |
|
|
|
465 |
|
|
if ((status & IS_R_INT) == 0) ni5010_rx(dev);
|
466 |
|
|
|
467 |
|
|
if ((status & IS_X_INT) == 0) {
|
468 |
|
|
xmit_was_error = process_xmt_interrupt(dev);
|
469 |
|
|
}
|
470 |
|
|
|
471 |
|
|
if ((status & IS_DMA_INT) == 0) {
|
472 |
|
|
PRINTK((KERN_DEBUG "%s: DMA complete (?)\n", dev->name));
|
473 |
|
|
outb(0, IE_DMA_RST); /* Reset DMA int */
|
474 |
|
|
}
|
475 |
|
|
|
476 |
|
|
if (!xmit_was_error)
|
477 |
|
|
reset_receiver(dev);
|
478 |
|
|
return;
|
479 |
|
|
}
|
480 |
|
|
|
481 |
|
|
|
482 |
|
|
static void dump_packet(void *buf, int len)
|
483 |
|
|
{
|
484 |
|
|
int i;
|
485 |
|
|
|
486 |
|
|
printk(KERN_DEBUG "Packet length = %#4x\n", len);
|
487 |
|
|
for (i = 0; i < len; i++){
|
488 |
|
|
if (i % 16 == 0) printk(KERN_DEBUG "%#4.4x", i);
|
489 |
|
|
if (i % 2 == 0) printk(" ");
|
490 |
|
|
printk("%2.2x", ((unsigned char *)buf)[i]);
|
491 |
|
|
if (i % 16 == 15) printk("\n");
|
492 |
|
|
}
|
493 |
|
|
printk("\n");
|
494 |
|
|
|
495 |
|
|
return;
|
496 |
|
|
}
|
497 |
|
|
|
498 |
|
|
/* We have a good packet, get it out of the buffer. */
|
499 |
|
|
static void ni5010_rx(struct net_device *dev)
|
500 |
|
|
{
|
501 |
|
|
struct ni5010_local *lp = (struct ni5010_local *)dev->priv;
|
502 |
|
|
int ioaddr = dev->base_addr;
|
503 |
|
|
unsigned char rcv_stat;
|
504 |
|
|
struct sk_buff *skb;
|
505 |
|
|
|
506 |
|
|
PRINTK2((KERN_DEBUG "%s: entering ni5010_rx()\n", dev->name));
|
507 |
|
|
|
508 |
|
|
rcv_stat = inb(EDLC_RSTAT);
|
509 |
|
|
PRINTK3((KERN_DEBUG "%s: EDLC_RSTAT = %#2x\n", dev->name, rcv_stat));
|
510 |
|
|
|
511 |
|
|
if ( (rcv_stat & RS_VALID_BITS) != RS_PKT_OK) {
|
512 |
|
|
PRINTK((KERN_INFO "%s: receive error.\n", dev->name));
|
513 |
|
|
lp->stats.rx_errors++;
|
514 |
|
|
if (rcv_stat & RS_RUNT) lp->stats.rx_length_errors++;
|
515 |
|
|
if (rcv_stat & RS_ALIGN) lp->stats.rx_frame_errors++;
|
516 |
|
|
if (rcv_stat & RS_CRC_ERR) lp->stats.rx_crc_errors++;
|
517 |
|
|
if (rcv_stat & RS_OFLW) lp->stats.rx_fifo_errors++;
|
518 |
|
|
outb(0xff, EDLC_RCLR); /* Clear the interrupt */
|
519 |
|
|
return;
|
520 |
|
|
}
|
521 |
|
|
|
522 |
|
|
outb(0xff, EDLC_RCLR); /* Clear the interrupt */
|
523 |
|
|
|
524 |
|
|
lp->i_pkt_size = inw(IE_RCNT);
|
525 |
|
|
if (lp->i_pkt_size > ETH_FRAME_LEN || lp->i_pkt_size < 10 ) {
|
526 |
|
|
PRINTK((KERN_DEBUG "%s: Packet size error, packet size = %#4.4x\n",
|
527 |
|
|
dev->name, lp->i_pkt_size));
|
528 |
|
|
lp->stats.rx_errors++;
|
529 |
|
|
lp->stats.rx_length_errors++;
|
530 |
|
|
return;
|
531 |
|
|
}
|
532 |
|
|
|
533 |
|
|
/* Malloc up new buffer. */
|
534 |
|
|
skb = dev_alloc_skb(lp->i_pkt_size + 3);
|
535 |
|
|
if (skb == NULL) {
|
536 |
|
|
printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n", dev->name);
|
537 |
|
|
lp->stats.rx_dropped++;
|
538 |
|
|
return;
|
539 |
|
|
}
|
540 |
|
|
|
541 |
|
|
skb->dev = dev;
|
542 |
|
|
skb_reserve(skb, 2);
|
543 |
|
|
|
544 |
|
|
/* Read packet into buffer */
|
545 |
|
|
outb(MM_MUX, IE_MMODE); /* Rcv buffer to system bus */
|
546 |
|
|
outw(0, IE_GP); /* Seek to beginning of packet */
|
547 |
|
|
insb(IE_RBUF, skb_put(skb, lp->i_pkt_size), lp->i_pkt_size);
|
548 |
|
|
|
549 |
|
|
if (NI5010_DEBUG >= 4)
|
550 |
|
|
dump_packet(skb->data, skb->len);
|
551 |
|
|
|
552 |
|
|
skb->protocol = eth_type_trans(skb,dev);
|
553 |
|
|
netif_rx(skb);
|
554 |
|
|
dev->last_rx = jiffies;
|
555 |
|
|
lp->stats.rx_packets++;
|
556 |
|
|
lp->stats.rx_bytes += lp->i_pkt_size;
|
557 |
|
|
|
558 |
|
|
PRINTK2((KERN_DEBUG "%s: Received packet, size=%#4.4x\n",
|
559 |
|
|
dev->name, lp->i_pkt_size));
|
560 |
|
|
|
561 |
|
|
}
|
562 |
|
|
|
563 |
|
|
static int process_xmt_interrupt(struct net_device *dev)
|
564 |
|
|
{
|
565 |
|
|
struct ni5010_local *lp = (struct ni5010_local *)dev->priv;
|
566 |
|
|
int ioaddr = dev->base_addr;
|
567 |
|
|
int xmit_stat;
|
568 |
|
|
|
569 |
|
|
PRINTK2((KERN_DEBUG "%s: entering process_xmt_interrupt\n", dev->name));
|
570 |
|
|
|
571 |
|
|
xmit_stat = inb(EDLC_XSTAT);
|
572 |
|
|
PRINTK3((KERN_DEBUG "%s: EDLC_XSTAT = %2.2x\n", dev->name, xmit_stat));
|
573 |
|
|
|
574 |
|
|
outb(0, EDLC_XMASK); /* Disable xmit IRQ's */
|
575 |
|
|
outb(0xff, EDLC_XCLR); /* Clear all pending xmit IRQ's */
|
576 |
|
|
|
577 |
|
|
if (xmit_stat & XS_COLL){
|
578 |
|
|
PRINTK((KERN_DEBUG "%s: collision detected, retransmitting\n",
|
579 |
|
|
dev->name));
|
580 |
|
|
outw(NI5010_BUFSIZE - lp->o_pkt_size, IE_GP);
|
581 |
|
|
/* outb(0, IE_MMODE); */ /* xmt buf on sysbus FIXME: needed ? */
|
582 |
|
|
outb(MM_EN_XMT | MM_MUX, IE_MMODE);
|
583 |
|
|
outb(XM_ALL, EDLC_XMASK); /* Enable xmt IRQ's */
|
584 |
|
|
lp->stats.collisions++;
|
585 |
|
|
return 1;
|
586 |
|
|
}
|
587 |
|
|
|
588 |
|
|
/* FIXME: handle other xmt error conditions */
|
589 |
|
|
|
590 |
|
|
lp->stats.tx_packets++;
|
591 |
|
|
lp->stats.tx_bytes += lp->o_pkt_size;
|
592 |
|
|
netif_wake_queue(dev);
|
593 |
|
|
|
594 |
|
|
PRINTK2((KERN_DEBUG "%s: sent packet, size=%#4.4x\n",
|
595 |
|
|
dev->name, lp->o_pkt_size));
|
596 |
|
|
|
597 |
|
|
return 0;
|
598 |
|
|
}
|
599 |
|
|
|
600 |
|
|
/* The inverse routine to ni5010_open(). */
|
601 |
|
|
static int ni5010_close(struct net_device *dev)
|
602 |
|
|
{
|
603 |
|
|
int ioaddr = dev->base_addr;
|
604 |
|
|
|
605 |
|
|
PRINTK2((KERN_DEBUG "%s: entering ni5010_close\n", dev->name));
|
606 |
|
|
#ifdef jumpered_interrupts
|
607 |
|
|
free_irq(dev->irq, NULL);
|
608 |
|
|
#endif
|
609 |
|
|
/* Put card in held-RESET state */
|
610 |
|
|
outb(0, IE_MMODE);
|
611 |
|
|
outb(RS_RESET, EDLC_RESET);
|
612 |
|
|
|
613 |
|
|
netif_stop_queue(dev);
|
614 |
|
|
|
615 |
|
|
PRINTK((KERN_DEBUG "%s: %s closed down\n", dev->name, boardname));
|
616 |
|
|
return 0;
|
617 |
|
|
|
618 |
|
|
}
|
619 |
|
|
|
620 |
|
|
/* Get the current statistics. This may be called with the card open or
|
621 |
|
|
closed. */
|
622 |
|
|
static struct net_device_stats *ni5010_get_stats(struct net_device *dev)
|
623 |
|
|
{
|
624 |
|
|
struct ni5010_local *lp = (struct ni5010_local *)dev->priv;
|
625 |
|
|
|
626 |
|
|
PRINTK2((KERN_DEBUG "%s: entering ni5010_get_stats\n", dev->name));
|
627 |
|
|
|
628 |
|
|
if (NI5010_DEBUG) ni5010_show_registers(dev);
|
629 |
|
|
|
630 |
|
|
/* cli(); */
|
631 |
|
|
/* Update the statistics from the device registers. */
|
632 |
|
|
/* We do this in the interrupt handler */
|
633 |
|
|
/* sti(); */
|
634 |
|
|
|
635 |
|
|
return &lp->stats;
|
636 |
|
|
}
|
637 |
|
|
|
638 |
|
|
/* Set or clear the multicast filter for this adaptor.
|
639 |
|
|
num_addrs == -1 Promiscuous mode, receive all packets
|
640 |
|
|
num_addrs == 0 Normal mode, clear multicast list
|
641 |
|
|
num_addrs > 0 Multicast mode, receive normal and MC packets, and do
|
642 |
|
|
best-effort filtering.
|
643 |
|
|
*/
|
644 |
|
|
static void ni5010_set_multicast_list(struct net_device *dev)
|
645 |
|
|
{
|
646 |
|
|
short ioaddr = dev->base_addr;
|
647 |
|
|
|
648 |
|
|
PRINTK2((KERN_DEBUG "%s: entering set_multicast_list\n", dev->name));
|
649 |
|
|
|
650 |
|
|
if (dev->flags&IFF_PROMISC || dev->flags&IFF_ALLMULTI) {
|
651 |
|
|
dev->flags |= IFF_PROMISC;
|
652 |
|
|
outb(RMD_PROMISC, EDLC_RMODE); /* Enable promiscuous mode */
|
653 |
|
|
PRINTK((KERN_DEBUG "%s: Entering promiscuous mode\n", dev->name));
|
654 |
|
|
} else if (dev->mc_list) {
|
655 |
|
|
/* Sorry, multicast not supported */
|
656 |
|
|
PRINTK((KERN_DEBUG "%s: No multicast, entering broadcast mode\n", dev->name));
|
657 |
|
|
outb(RMD_BROADCAST, EDLC_RMODE);
|
658 |
|
|
} else {
|
659 |
|
|
PRINTK((KERN_DEBUG "%s: Entering broadcast mode\n", dev->name));
|
660 |
|
|
outb(RMD_BROADCAST, EDLC_RMODE); /* Disable promiscuous mode, use normal mode */
|
661 |
|
|
}
|
662 |
|
|
}
|
663 |
|
|
|
664 |
|
|
static void hardware_send_packet(struct net_device *dev, char *buf, int length, int pad)
|
665 |
|
|
{
|
666 |
|
|
struct ni5010_local *lp = (struct ni5010_local *)dev->priv;
|
667 |
|
|
int ioaddr = dev->base_addr;
|
668 |
|
|
unsigned long flags;
|
669 |
|
|
unsigned int buf_offs;
|
670 |
|
|
|
671 |
|
|
PRINTK2((KERN_DEBUG "%s: entering hardware_send_packet\n", dev->name));
|
672 |
|
|
|
673 |
|
|
if (length > ETH_FRAME_LEN) {
|
674 |
|
|
PRINTK((KERN_WARNING "%s: packet too large, not possible\n",
|
675 |
|
|
dev->name));
|
676 |
|
|
return;
|
677 |
|
|
}
|
678 |
|
|
|
679 |
|
|
if (NI5010_DEBUG) ni5010_show_registers(dev);
|
680 |
|
|
|
681 |
|
|
if (inb(IE_ISTAT) & IS_EN_XMT) {
|
682 |
|
|
PRINTK((KERN_WARNING "%s: sending packet while already transmitting, not possible\n",
|
683 |
|
|
dev->name));
|
684 |
|
|
return;
|
685 |
|
|
}
|
686 |
|
|
|
687 |
|
|
if (NI5010_DEBUG > 3) dump_packet(buf, length);
|
688 |
|
|
|
689 |
|
|
buf_offs = NI5010_BUFSIZE - length - pad;
|
690 |
|
|
lp->o_pkt_size = length + pad;
|
691 |
|
|
|
692 |
|
|
save_flags(flags);
|
693 |
|
|
cli();
|
694 |
|
|
|
695 |
|
|
outb(0, EDLC_RMASK); /* Mask all receive interrupts */
|
696 |
|
|
outb(0, IE_MMODE); /* Put Xmit buffer on system bus */
|
697 |
|
|
outb(0xff, EDLC_RCLR); /* Clear out pending rcv interrupts */
|
698 |
|
|
|
699 |
|
|
outw(buf_offs, IE_GP); /* Point GP at start of packet */
|
700 |
|
|
outsb(IE_XBUF, buf, length); /* Put data in buffer */
|
701 |
|
|
while(pad--)
|
702 |
|
|
outb(0, IE_XBUF);
|
703 |
|
|
|
704 |
|
|
outw(buf_offs, IE_GP); /* Rewrite where packet starts */
|
705 |
|
|
|
706 |
|
|
/* should work without that outb() (Crynwr used it) */
|
707 |
|
|
/*outb(MM_MUX, IE_MMODE);*/ /* Xmt buffer to EDLC bus */
|
708 |
|
|
outb(MM_EN_XMT | MM_MUX, IE_MMODE); /* Begin transmission */
|
709 |
|
|
outb(XM_ALL, EDLC_XMASK); /* Cause interrupt after completion or fail */
|
710 |
|
|
|
711 |
|
|
restore_flags(flags);
|
712 |
|
|
|
713 |
|
|
netif_wake_queue(dev);
|
714 |
|
|
|
715 |
|
|
if (NI5010_DEBUG) ni5010_show_registers(dev);
|
716 |
|
|
}
|
717 |
|
|
|
718 |
|
|
static void chipset_init(struct net_device *dev, int startp)
|
719 |
|
|
{
|
720 |
|
|
/* FIXME: Move some stuff here */
|
721 |
|
|
PRINTK3((KERN_DEBUG "%s: doing NOTHING in chipset_init\n", dev->name));
|
722 |
|
|
}
|
723 |
|
|
|
724 |
|
|
static void ni5010_show_registers(struct net_device *dev)
|
725 |
|
|
{
|
726 |
|
|
int ioaddr = dev->base_addr;
|
727 |
|
|
|
728 |
|
|
PRINTK3((KERN_DEBUG "%s: XSTAT %#2.2x\n", dev->name, inb(EDLC_XSTAT)));
|
729 |
|
|
PRINTK3((KERN_DEBUG "%s: XMASK %#2.2x\n", dev->name, inb(EDLC_XMASK)));
|
730 |
|
|
PRINTK3((KERN_DEBUG "%s: RSTAT %#2.2x\n", dev->name, inb(EDLC_RSTAT)));
|
731 |
|
|
PRINTK3((KERN_DEBUG "%s: RMASK %#2.2x\n", dev->name, inb(EDLC_RMASK)));
|
732 |
|
|
PRINTK3((KERN_DEBUG "%s: RMODE %#2.2x\n", dev->name, inb(EDLC_RMODE)));
|
733 |
|
|
PRINTK3((KERN_DEBUG "%s: XMODE %#2.2x\n", dev->name, inb(EDLC_XMODE)));
|
734 |
|
|
PRINTK3((KERN_DEBUG "%s: ISTAT %#2.2x\n", dev->name, inb(IE_ISTAT)));
|
735 |
|
|
}
|
736 |
|
|
|
737 |
|
|
#ifdef MODULE
|
738 |
|
|
static struct net_device dev_ni5010;
|
739 |
|
|
static int io;
|
740 |
|
|
static int irq;
|
741 |
|
|
|
742 |
|
|
MODULE_PARM(io, "i");
|
743 |
|
|
MODULE_PARM(irq, "i");
|
744 |
|
|
MODULE_PARM_DESC(io, "ni5010 I/O base address");
|
745 |
|
|
MODULE_PARM_DESC(irq, "ni5010 IRQ number");
|
746 |
|
|
|
747 |
|
|
int init_module(void)
|
748 |
|
|
{
|
749 |
|
|
int result;
|
750 |
|
|
|
751 |
|
|
PRINTK2((KERN_DEBUG "%s: entering init_module\n", boardname));
|
752 |
|
|
/*
|
753 |
|
|
if(io <= 0 || irq == 0){
|
754 |
|
|
printk(KERN_WARNING "%s: Autoprobing not allowed for modules.\n", boardname);
|
755 |
|
|
printk(KERN_WARNING "%s: Set symbols 'io' and 'irq'\n", boardname);
|
756 |
|
|
return -EINVAL;
|
757 |
|
|
}
|
758 |
|
|
*/
|
759 |
|
|
if (io <= 0){
|
760 |
|
|
printk(KERN_WARNING "%s: Autoprobing for modules is hazardous, trying anyway..\n", boardname);
|
761 |
|
|
}
|
762 |
|
|
|
763 |
|
|
PRINTK2((KERN_DEBUG "%s: init_module irq=%#2x, io=%#3x\n", boardname, irq, io));
|
764 |
|
|
dev_ni5010.irq=irq;
|
765 |
|
|
dev_ni5010.base_addr=io;
|
766 |
|
|
dev_ni5010.init=ni5010_probe;
|
767 |
|
|
if ((result = register_netdev(&dev_ni5010)) != 0) {
|
768 |
|
|
PRINTK((KERN_WARNING "%s: register_netdev returned %d.\n",
|
769 |
|
|
boardname, result));
|
770 |
|
|
return -EIO;
|
771 |
|
|
}
|
772 |
|
|
return 0;
|
773 |
|
|
}
|
774 |
|
|
|
775 |
|
|
void
|
776 |
|
|
cleanup_module(void)
|
777 |
|
|
{
|
778 |
|
|
PRINTK2((KERN_DEBUG "%s: entering cleanup_module\n", boardname));
|
779 |
|
|
|
780 |
|
|
unregister_netdev(&dev_ni5010);
|
781 |
|
|
|
782 |
|
|
release_region(dev_ni5010.base_addr, NI5010_IO_EXTENT);
|
783 |
|
|
if (dev_ni5010.priv != NULL){
|
784 |
|
|
kfree(dev_ni5010.priv);
|
785 |
|
|
dev_ni5010.priv = NULL;
|
786 |
|
|
}
|
787 |
|
|
}
|
788 |
|
|
#endif /* MODULE */
|
789 |
|
|
MODULE_LICENSE("GPL");
|
790 |
|
|
|
791 |
|
|
/*
|
792 |
|
|
* Local variables:
|
793 |
|
|
* compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c ni5010.c"
|
794 |
|
|
* version-control: t
|
795 |
|
|
* kept-new-versions: 5
|
796 |
|
|
* tab-width: 4
|
797 |
|
|
* End:
|
798 |
|
|
*/
|