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/* eepro.c: Intel EtherExpress Pro/10 device driver for Linux. */
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/*
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Written 1994-1998 by Bao C. Ha.
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Copyright (C) 1994-1998 by Bao C. Ha.
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This software may be used and distributed
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according to the terms of the GNU Public License,
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incorporated herein by reference.
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The author may be reached at bao@hacom.net
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or Hacom, 2477 Wrightsboro Rd., Augusta, GA 30904.
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Things remaining to do:
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Better record keeping of errors.
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Eliminate transmit interrupt to reduce overhead.
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Implement "concurrent processing". I won't be doing it!
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Bugs:
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If you have a problem of not detecting the 82595 during a
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reboot (warm reset), disable the FLASH memory should fix it.
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This is a compatibility hardware problem.
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Versions:
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0.10c Some cosmetic changes. (9/28/98, BCH)
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0.10b Should work now with (some) Pro/10+. At least for
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me (and my two cards) it does. _No_ guarantee for
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function with non-Pro/10+ cards! (don't have any)
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(RMC, 9/11/96)
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0.10 Added support for the Etherexpress Pro/10+. The
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IRQ map was changed significantly from the old
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pro/10. The new interrupt map was provided by
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Rainer M. Canavan (Canavan@Zeus.cs.bonn.edu).
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(BCH, 9/3/96)
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0.09 Fixed a race condition in the transmit algorithm,
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which causes crashes under heavy load with fast
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pentium computers. The performance should also
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improve a bit. The size of RX buffer, and hence
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TX buffer, can also be changed via lilo or insmod.
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(BCH, 7/31/96)
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0.08 Implement 32-bit I/O for the 82595TX and 82595FX
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based lan cards. Disable full-duplex mode if TPE
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is not used. (BCH, 4/8/96)
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0.07a Fix a stat report which counts every packet as a
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heart-beat failure. (BCH, 6/3/95)
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0.07 Modified to support all other 82595-based lan cards.
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The IRQ vector of the EtherExpress Pro will be set
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according to the value saved in the EEPROM. For other
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cards, I will do autoirq_request() to grab the next
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available interrupt vector. (BCH, 3/17/95)
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0.06a,b Interim released. Minor changes in the comments and
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print out format. (BCH, 3/9/95 and 3/14/95)
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0.06 First stable release that I am comfortable with. (BCH,
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3/2/95)
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0.05 Complete testing of multicast. (BCH, 2/23/95)
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0.04 Adding multicast support. (BCH, 2/14/95)
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0.03 First widely alpha release for public testing.
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(BCH, 2/14/95)
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*/
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static const char *version =
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"eepro.c: v0.10c 9/28/98 Bao C. Ha (bao@hacom.net)\n";
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#include <linux/module.h>
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/*
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Sources:
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This driver wouldn't have been written without the availability
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of the Crynwr's Lan595 driver source code. It helps me to
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familiarize with the 82595 chipset while waiting for the Intel
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documentation. I also learned how to detect the 82595 using
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the packet driver's technique.
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This driver is written by cutting and pasting the skeleton.c driver
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provided by Donald Becker. I also borrowed the EEPROM routine from
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Donald Becker's 82586 driver.
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Datasheet for the Intel 82595 (including the TX and FX version). It
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provides just enough info that the casual reader might think that it
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documents the i82595.
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The User Manual for the 82595. It provides a lot of the missing
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information.
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*/
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#include <linux/kernel.h>
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#include <linux/sched.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/ptrace.h>
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#include <linux/ioport.h>
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#include <linux/in.h>
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#include <linux/malloc.h>
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#include <linux/string.h>
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#include <asm/system.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/errno.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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/* First, a few definitions that the brave might change. */
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/* A zero-terminated list of I/O addresses to be probed. */
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static unsigned int eepro_portlist[] =
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{ 0x300, 0x240, 0x280, 0x2C0, 0x200, 0x320, 0x340, 0x360, 0};
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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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/* The number of low I/O ports used by the ethercard. */
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#define EEPRO_IO_EXTENT 16
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/* Different 82595 chips */
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#define LAN595 0
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#define LAN595TX 1
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#define LAN595FX 2
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/* Information that need to be kept for each board. */
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struct eepro_local {
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struct enet_statistics stats;
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unsigned rx_start;
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unsigned tx_start; /* start of the transmit chain */
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int tx_last; /* pointer to last packet in the transmit chain */
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unsigned tx_end; /* end of the transmit chain (plus 1) */
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int eepro; /* 1 for the EtherExpress Pro/10,
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2 for the EtherExpress Pro/10+,
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int version; /* a flag to indicate if this is a TX or FX
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version of the 82595 chip. */
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int stepping;
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};
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/* The station (ethernet) address prefix, used for IDing the board. */
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#define SA_ADDR0 0x00 /* Etherexpress Pro/10 */
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#define SA_ADDR1 0xaa
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#define SA_ADDR2 0x00
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#define SA2_ADDR0 0x00 /* Etherexpress Pro/10+ */
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#define SA2_ADDR1 0xa0
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#define SA2_ADDR2 0xc9
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#define SA3_ADDR0 0x00 /* more Etherexpress Pro/10+ */
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#define SA3_ADDR1 0xaa
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#define SA3_ADDR2 0x00
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#define SA3_ADDR3 0xc9
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/* Index to functions, as function prototypes. */
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extern int eepro_probe(struct device *dev);
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static int eepro_probe1(struct device *dev, short ioaddr);
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static int eepro_open(struct device *dev);
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static int eepro_send_packet(struct sk_buff *skb, struct device *dev);
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static void eepro_interrupt(int irq, void *dev_id, struct pt_regs *regs);
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static void eepro_rx(struct device *dev);
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static void eepro_transmit_interrupt(struct device *dev);
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static int eepro_close(struct device *dev);
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static struct enet_statistics *eepro_get_stats(struct device *dev);
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static void set_multicast_list(struct device *dev);
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static int read_eeprom(int ioaddr, int location);
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static void hardware_send_packet(struct device *dev, void *buf, short length);
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static int eepro_grab_irq(struct device *dev);
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/*
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Details of the i82595.
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You will need either the datasheet or the user manual to understand what
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is going on here. The 82595 is very different from the 82586, 82593.
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The receive algorithm in eepro_rx() is just an implementation of the
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RCV ring structure that the Intel 82595 imposes at the hardware level.
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The receive buffer is set at 24K, and the transmit buffer is 8K. I
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am assuming that the total buffer memory is 32K, which is true for the
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Intel EtherExpress Pro/10. If it is less than that on a generic card,
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the driver will be broken.
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The transmit algorithm in the hardware_send_packet() is similar to the
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one in the eepro_rx(). The transmit buffer is a ring linked list.
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I just queue the next available packet to the end of the list. In my
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system, the 82595 is so fast that the list seems to always contain a
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single packet. In other systems with faster computers and more congested
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network traffics, the ring linked list should improve performance by
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allowing up to 8K worth of packets to be queued.
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The sizes of the receive and transmit buffers can now be changed via lilo
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or insmod. Lilo uses the appended line "ether=io,irq,debug,rx-buffer,eth0"
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where rx-buffer is in KB unit. Modules uses the parameter mem which is
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also in KB unit, for example "insmod io=io-address irq=0 mem=rx-buffer."
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The receive buffer has to be more than 3K or less than 29K. Otherwise,
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it is reset to the default of 24K, and, hence, 8K for the trasnmit
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buffer (transmit-buffer = 32K - receive-buffer).
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*/
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#define RAM_SIZE 0x8000
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#define RCV_HEADER 8
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#define RCV_RAM 0x6000 /* 24KB default for RCV buffer */
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#define RCV_LOWER_LIMIT 0x00 /* 0x0000 */
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/* #define RCV_UPPER_LIMIT ((RCV_RAM - 2) >> 8) */ /* 0x5ffe */
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#define RCV_UPPER_LIMIT (((rcv_ram) - 2) >> 8)
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/* #define XMT_RAM (RAM_SIZE - RCV_RAM) */ /* 8KB for XMT buffer */
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#define XMT_RAM (RAM_SIZE - (rcv_ram)) /* 8KB for XMT buffer */
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/* #define XMT_LOWER_LIMIT (RCV_RAM >> 8) */ /* 0x6000 */
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#define XMT_LOWER_LIMIT ((rcv_ram) >> 8)
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#define XMT_UPPER_LIMIT ((RAM_SIZE - 2) >> 8) /* 0x7ffe */
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#define XMT_HEADER 8
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#define RCV_DONE 0x0008
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#define RX_OK 0x2000
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#define RX_ERROR 0x0d81
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#define TX_DONE_BIT 0x0080
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#define CHAIN_BIT 0x8000
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#define XMT_STATUS 0x02
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#define XMT_CHAIN 0x04
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#define XMT_COUNT 0x06
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#define BANK0_SELECT 0x00
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#define BANK1_SELECT 0x40
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#define BANK2_SELECT 0x80
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/* Bank 0 registers */
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#define COMMAND_REG 0x00 /* Register 0 */
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#define MC_SETUP 0x03
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#define XMT_CMD 0x04
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#define DIAGNOSE_CMD 0x07
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#define RCV_ENABLE_CMD 0x08
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#define RCV_DISABLE_CMD 0x0a
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#define STOP_RCV_CMD 0x0b
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#define RESET_CMD 0x0e
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#define POWER_DOWN_CMD 0x18
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#define RESUME_XMT_CMD 0x1c
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#define SEL_RESET_CMD 0x1e
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#define STATUS_REG 0x01 /* Register 1 */
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#define RX_INT 0x02
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#define TX_INT 0x04
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#define EXEC_STATUS 0x30
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#define ID_REG 0x02 /* Register 2 */
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#define R_ROBIN_BITS 0xc0 /* round robin counter */
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#define ID_REG_MASK 0x2c
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#define ID_REG_SIG 0x24
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#define AUTO_ENABLE 0x10
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#define INT_MASK_REG 0x03 /* Register 3 */
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#define RX_STOP_MASK 0x01
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#define RX_MASK 0x02
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#define TX_MASK 0x04
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#define EXEC_MASK 0x08
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#define ALL_MASK 0x0f
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#define IO_32_BIT 0x10
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#define RCV_BAR 0x04 /* The following are word (16-bit) registers */
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#define RCV_STOP 0x06
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#define XMT_BAR 0x0a
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#define HOST_ADDRESS_REG 0x0c
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#define IO_PORT 0x0e
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#define IO_PORT_32_BIT 0x0c
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/* Bank 1 registers */
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#define REG1 0x01
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#define WORD_WIDTH 0x02
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#define INT_ENABLE 0x80
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#define INT_NO_REG 0x02
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#define RCV_LOWER_LIMIT_REG 0x08
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#define RCV_UPPER_LIMIT_REG 0x09
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#define XMT_LOWER_LIMIT_REG 0x0a
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#define XMT_UPPER_LIMIT_REG 0x0b
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/* Bank 2 registers */
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#define XMT_Chain_Int 0x20 /* Interrupt at the end of the transmit chain */
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#define XMT_Chain_ErrStop 0x40 /* Interrupt at the end of the chain even if there are errors */
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#define RCV_Discard_BadFrame 0x80 /* Throw bad frames away, and continue to receive others */
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#define REG2 0x02
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#define PRMSC_Mode 0x01
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#define Multi_IA 0x20
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#define REG3 0x03
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#define TPE_BIT 0x04
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#define BNC_BIT 0x20
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#define REG13 0x0d
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#define FDX 0x00
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#define A_N_ENABLE 0x02
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#define I_ADD_REG0 0x04
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#define I_ADD_REG1 0x05
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#define I_ADD_REG2 0x06
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#define I_ADD_REG3 0x07
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#define I_ADD_REG4 0x08
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#define I_ADD_REG5 0x09
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#define EEPROM_REG 0x0a
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#define EESK 0x01
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|
|
#define EECS 0x02
|
| 327 |
|
|
#define EEDI 0x04
|
| 328 |
|
|
#define EEDO 0x08
|
| 329 |
|
|
|
| 330 |
|
|
/* Check for a network adaptor of this type, and return '0' if one exists.
|
| 331 |
|
|
|
| 332 |
|
|
If dev->base_addr == 0, probe all likely locations.
|
| 333 |
|
|
If dev->base_addr == 1, always return failure.
|
| 334 |
|
|
If dev->base_addr == 2, allocate space for the device and return success
|
| 335 |
|
|
(detachable devices only).
|
| 336 |
|
|
|
| 337 |
|
|
*/
|
| 338 |
|
|
|
| 339 |
|
|
#ifdef HAVE_DEVLIST
|
| 340 |
|
|
|
| 341 |
|
|
/* Support for a alternate probe manager, which will eliminate the
|
| 342 |
|
|
boilerplate below. */
|
| 343 |
|
|
|
| 344 |
|
|
struct netdev_entry netcard_drv =
|
| 345 |
|
|
{"eepro", eepro_probe1, EEPRO_IO_EXTENT, eepro_portlist};
|
| 346 |
|
|
|
| 347 |
|
|
#else
|
| 348 |
|
|
|
| 349 |
|
|
int
|
| 350 |
|
|
eepro_probe(struct device *dev)
|
| 351 |
|
|
{
|
| 352 |
|
|
int i;
|
| 353 |
|
|
int base_addr = dev ? dev->base_addr : 0;
|
| 354 |
|
|
|
| 355 |
|
|
if (base_addr > 0x1ff) /* Check a single specified location. */
|
| 356 |
|
|
return eepro_probe1(dev, base_addr);
|
| 357 |
|
|
else if (base_addr != 0) /* Don't probe at all. */
|
| 358 |
|
|
return ENXIO;
|
| 359 |
|
|
|
| 360 |
|
|
for (i = 0; eepro_portlist[i]; i++) {
|
| 361 |
|
|
int ioaddr = eepro_portlist[i];
|
| 362 |
|
|
if (check_region(ioaddr, EEPRO_IO_EXTENT))
|
| 363 |
|
|
continue;
|
| 364 |
|
|
|
| 365 |
|
|
if (eepro_probe1(dev, ioaddr) == 0)
|
| 366 |
|
|
return 0;
|
| 367 |
|
|
}
|
| 368 |
|
|
|
| 369 |
|
|
return ENODEV;
|
| 370 |
|
|
}
|
| 371 |
|
|
#endif
|
| 372 |
|
|
|
| 373 |
|
|
/* This is the real probe routine. Linux has a history of friendly device
|
| 374 |
|
|
probes on the ISA bus. A good device probes avoids doing writes, and
|
| 375 |
|
|
verifies that the correct device exists and functions. */
|
| 376 |
|
|
|
| 377 |
|
|
int
|
| 378 |
|
|
eepro_probe1(struct device *dev, short ioaddr)
|
| 379 |
|
|
{
|
| 380 |
|
|
unsigned short station_addr[6], id, counter;
|
| 381 |
|
|
int i;
|
| 382 |
|
|
int eepro;
|
| 383 |
|
|
const char *ifmap[] = {"AUI", "10Base2", "10BaseT"};
|
| 384 |
|
|
enum iftype { AUI=0, BNC=1, TPE=2 };
|
| 385 |
|
|
|
| 386 |
|
|
/* Now, we are going to check for the signature of the
|
| 387 |
|
|
ID_REG (register 2 of bank 0) */
|
| 388 |
|
|
if (((id=inb(ioaddr + ID_REG)) & ID_REG_MASK) == ID_REG_SIG) {
|
| 389 |
|
|
|
| 390 |
|
|
/* We seem to have the 82595 signature, let's
|
| 391 |
|
|
play with its counter (last 2 bits of
|
| 392 |
|
|
register 2 of bank 0) to be sure. */
|
| 393 |
|
|
|
| 394 |
|
|
counter = (id & R_ROBIN_BITS);
|
| 395 |
|
|
if (((id=inb(ioaddr+ID_REG)) & R_ROBIN_BITS) ==
|
| 396 |
|
|
(counter + 0x40)) {
|
| 397 |
|
|
|
| 398 |
|
|
/* Yes, the 82595 has been found */
|
| 399 |
|
|
|
| 400 |
|
|
/* Now, get the ethernet hardware address from
|
| 401 |
|
|
the EEPROM */
|
| 402 |
|
|
|
| 403 |
|
|
station_addr[0] = read_eeprom(ioaddr, 2);
|
| 404 |
|
|
station_addr[1] = read_eeprom(ioaddr, 3);
|
| 405 |
|
|
station_addr[2] = read_eeprom(ioaddr, 4);
|
| 406 |
|
|
|
| 407 |
|
|
/* Check the station address for the manufacturer's code */
|
| 408 |
|
|
|
| 409 |
|
|
if ((station_addr[2] == 0x00aa) && (station_addr[1]!= 0x00c9)) {
|
| 410 |
|
|
eepro = 1;
|
| 411 |
|
|
printk("%s: Intel EtherExpress Pro/10 ISA at %#x,",
|
| 412 |
|
|
dev->name, ioaddr);
|
| 413 |
|
|
} else
|
| 414 |
|
|
if ( (station_addr[2] == 0x00a0)
|
| 415 |
|
|
|| ((station_addr[2] == 0x00aa) && (station_addr[1] == 0x00c9) )) {
|
| 416 |
|
|
eepro = 2;
|
| 417 |
|
|
printk("%s: Intel EtherExpress Pro/10+ ISA\n at %#x,",
|
| 418 |
|
|
dev->name, ioaddr);
|
| 419 |
|
|
}
|
| 420 |
|
|
else {
|
| 421 |
|
|
eepro = 0;
|
| 422 |
|
|
printk("%s: Intel 82595-based lan card at %#x,",
|
| 423 |
|
|
dev->name, ioaddr);
|
| 424 |
|
|
}
|
| 425 |
|
|
|
| 426 |
|
|
/* Fill in the 'dev' fields. */
|
| 427 |
|
|
dev->base_addr = ioaddr;
|
| 428 |
|
|
|
| 429 |
|
|
for (i=0; i < 6; i++) {
|
| 430 |
|
|
dev->dev_addr[i] = ((unsigned char *) station_addr)[5-i];
|
| 431 |
|
|
printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]);
|
| 432 |
|
|
}
|
| 433 |
|
|
|
| 434 |
|
|
if ((dev->mem_end & 0x3f) < 3 || /* RX buffer must be more than 3K */
|
| 435 |
|
|
(dev->mem_end & 0x3f) > 29) /* and less than 29K */
|
| 436 |
|
|
dev->mem_end = RCV_RAM; /* or it will be set to 24K */
|
| 437 |
|
|
else dev->mem_end = 1024*dev->mem_end; /* Maybe I should shift << 10 */
|
| 438 |
|
|
|
| 439 |
|
|
/* From now on, dev->mem_end contains the actual size of rx buffer */
|
| 440 |
|
|
|
| 441 |
|
|
if (net_debug > 3)
|
| 442 |
|
|
printk(", %dK RCV buffer", (int)(dev->mem_end)/1024);
|
| 443 |
|
|
|
| 444 |
|
|
outb(BANK2_SELECT, ioaddr); /* be CAREFUL, BANK 2 now */
|
| 445 |
|
|
id = inb(ioaddr + REG3);
|
| 446 |
|
|
if (id & TPE_BIT)
|
| 447 |
|
|
dev->if_port = TPE;
|
| 448 |
|
|
else dev->if_port = BNC;
|
| 449 |
|
|
|
| 450 |
|
|
if (net_debug>3)
|
| 451 |
|
|
printk("id: %x\n", id);
|
| 452 |
|
|
|
| 453 |
|
|
if (dev->irq < 2 && eepro) {
|
| 454 |
|
|
i = read_eeprom(ioaddr, 1);
|
| 455 |
|
|
if (eepro == 1)
|
| 456 |
|
|
switch (i & 0x07) {
|
| 457 |
|
|
case 0: dev->irq = 9; break;
|
| 458 |
|
|
case 1: dev->irq = 3; break;
|
| 459 |
|
|
case 2: dev->irq = 5; break;
|
| 460 |
|
|
case 3: dev->irq = 10; break;
|
| 461 |
|
|
case 4: dev->irq = 11; break;
|
| 462 |
|
|
default: /* should never get here !!!!! */
|
| 463 |
|
|
printk(" illegal interrupt vector stored in EEPROM.\n");
|
| 464 |
|
|
return ENODEV;
|
| 465 |
|
|
}
|
| 466 |
|
|
else switch (i & 0x07) {
|
| 467 |
|
|
case 0: dev->irq = 3; break;
|
| 468 |
|
|
case 1: dev->irq = 4; break;
|
| 469 |
|
|
case 2: dev->irq = 5; break;
|
| 470 |
|
|
case 3: dev->irq = 7; break;
|
| 471 |
|
|
case 4: dev->irq = 9; break;
|
| 472 |
|
|
case 5: dev->irq = 10; break;
|
| 473 |
|
|
case 6: dev->irq = 11; break;
|
| 474 |
|
|
case 7: dev->irq = 12; break;
|
| 475 |
|
|
}
|
| 476 |
|
|
}
|
| 477 |
|
|
else if (dev->irq == 2)
|
| 478 |
|
|
dev->irq = 9;
|
| 479 |
|
|
|
| 480 |
|
|
if (dev->irq > 2) {
|
| 481 |
|
|
printk(", IRQ %d, %s.\n", dev->irq,
|
| 482 |
|
|
ifmap[dev->if_port]);
|
| 483 |
|
|
if (request_irq(dev->irq, &eepro_interrupt, 0, "eepro", NULL)) {
|
| 484 |
|
|
printk("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
|
| 485 |
|
|
return -EAGAIN;
|
| 486 |
|
|
}
|
| 487 |
|
|
}
|
| 488 |
|
|
else printk(", %s.\n", ifmap[dev->if_port]);
|
| 489 |
|
|
|
| 490 |
|
|
if ((dev->mem_start & 0xf) > 0) /* I don't know if this is */
|
| 491 |
|
|
net_debug = dev->mem_start & 7; /* still useful or not */
|
| 492 |
|
|
|
| 493 |
|
|
if (net_debug > 3) {
|
| 494 |
|
|
i = read_eeprom(ioaddr, 5);
|
| 495 |
|
|
if (i & 0x2000) /* bit 13 of EEPROM word 5 */
|
| 496 |
|
|
printk("%s: Concurrent Processing is enabled but not used!\n",
|
| 497 |
|
|
dev->name);
|
| 498 |
|
|
}
|
| 499 |
|
|
|
| 500 |
|
|
if (net_debug)
|
| 501 |
|
|
printk(version);
|
| 502 |
|
|
|
| 503 |
|
|
/* Grab the region so we can find another board if autoIRQ fails. */
|
| 504 |
|
|
request_region(ioaddr, EEPRO_IO_EXTENT, "eepro");
|
| 505 |
|
|
|
| 506 |
|
|
/* Initialize the device structure */
|
| 507 |
|
|
dev->priv = kmalloc(sizeof(struct eepro_local), GFP_KERNEL);
|
| 508 |
|
|
if (dev->priv == NULL)
|
| 509 |
|
|
return -ENOMEM;
|
| 510 |
|
|
memset(dev->priv, 0, sizeof(struct eepro_local));
|
| 511 |
|
|
|
| 512 |
|
|
dev->open = eepro_open;
|
| 513 |
|
|
dev->stop = eepro_close;
|
| 514 |
|
|
dev->hard_start_xmit = eepro_send_packet;
|
| 515 |
|
|
dev->get_stats = eepro_get_stats;
|
| 516 |
|
|
dev->set_multicast_list = &set_multicast_list;
|
| 517 |
|
|
|
| 518 |
|
|
/* Fill in the fields of the device structure with
|
| 519 |
|
|
ethernet generic values */
|
| 520 |
|
|
|
| 521 |
|
|
ether_setup(dev);
|
| 522 |
|
|
|
| 523 |
|
|
outb(RESET_CMD, ioaddr); /* RESET the 82595 */
|
| 524 |
|
|
|
| 525 |
|
|
return 0;
|
| 526 |
|
|
}
|
| 527 |
|
|
else return ENODEV;
|
| 528 |
|
|
}
|
| 529 |
|
|
else if (net_debug > 3)
|
| 530 |
|
|
printk ("EtherExpress Pro probed failed!\n");
|
| 531 |
|
|
return ENODEV;
|
| 532 |
|
|
}
|
| 533 |
|
|
|
| 534 |
|
|
/* Open/initialize the board. This is called (in the current kernel)
|
| 535 |
|
|
sometime after booting when the 'ifconfig' program is run.
|
| 536 |
|
|
|
| 537 |
|
|
This routine should set everything up anew at each open, even
|
| 538 |
|
|
registers that "should" only need to be set once at boot, so that
|
| 539 |
|
|
there is non-reboot way to recover if something goes wrong.
|
| 540 |
|
|
*/
|
| 541 |
|
|
|
| 542 |
|
|
static char irqrmap[] = {-1,-1,0,1,-1,2,-1,-1,-1,0,3,4,-1,-1,-1,-1};
|
| 543 |
|
|
static char irqrmap2[] = {-1,-1,4,0,1,2,-1,3,-1,4,5,6,7,-1,-1,-1};
|
| 544 |
|
|
|
| 545 |
|
|
static int
|
| 546 |
|
|
eepro_grab_irq(struct device *dev)
|
| 547 |
|
|
{
|
| 548 |
|
|
int irqlist[] = { 3, 4, 5, 7, 9, 10, 11, 12 };
|
| 549 |
|
|
int *irqp = irqlist, temp_reg, ioaddr = dev->base_addr;
|
| 550 |
|
|
|
| 551 |
|
|
outb(BANK1_SELECT, ioaddr); /* be CAREFUL, BANK 1 now */
|
| 552 |
|
|
|
| 553 |
|
|
/* Enable the interrupt line. */
|
| 554 |
|
|
temp_reg = inb(ioaddr + REG1);
|
| 555 |
|
|
outb(temp_reg | INT_ENABLE, ioaddr + REG1);
|
| 556 |
|
|
|
| 557 |
|
|
outb(BANK0_SELECT, ioaddr); /* be CAREFUL, BANK 0 now */
|
| 558 |
|
|
|
| 559 |
|
|
/* clear all interrupts */
|
| 560 |
|
|
outb(ALL_MASK, ioaddr + STATUS_REG);
|
| 561 |
|
|
|
| 562 |
|
|
/* Let EXEC event to interrupt */
|
| 563 |
|
|
outb(ALL_MASK & ~(EXEC_MASK), ioaddr + INT_MASK_REG);
|
| 564 |
|
|
|
| 565 |
|
|
do {
|
| 566 |
|
|
outb(BANK1_SELECT, ioaddr); /* be CAREFUL, BANK 1 now */
|
| 567 |
|
|
temp_reg = inb(ioaddr + INT_NO_REG);
|
| 568 |
|
|
outb((temp_reg & 0xf8) | irqrmap[*irqp], ioaddr + INT_NO_REG);
|
| 569 |
|
|
outb(BANK0_SELECT, ioaddr); /* Switch back to Bank 0 */
|
| 570 |
|
|
if (request_irq (*irqp, NULL, 0, "bogus", NULL) != EBUSY) {
|
| 571 |
|
|
/* Twinkle the interrupt, and check if it's seen */
|
| 572 |
|
|
autoirq_setup(0);
|
| 573 |
|
|
outb(DIAGNOSE_CMD, ioaddr); /* RESET the 82595 */
|
| 574 |
|
|
|
| 575 |
|
|
if (*irqp == autoirq_report(2) && /* It's a good IRQ line */
|
| 576 |
|
|
(request_irq(dev->irq = *irqp, &eepro_interrupt, 0, "eepro", NULL) == 0))
|
| 577 |
|
|
break;
|
| 578 |
|
|
/* clear all interrupts */
|
| 579 |
|
|
outb(ALL_MASK, ioaddr + STATUS_REG);
|
| 580 |
|
|
}
|
| 581 |
|
|
} while (*++irqp);
|
| 582 |
|
|
|
| 583 |
|
|
outb(BANK1_SELECT, ioaddr); /* Switch back to Bank 1 */
|
| 584 |
|
|
|
| 585 |
|
|
/* Disable the physical interrupt line. */
|
| 586 |
|
|
temp_reg = inb(ioaddr + REG1);
|
| 587 |
|
|
outb(temp_reg & 0x7f, ioaddr + REG1);
|
| 588 |
|
|
outb(BANK0_SELECT, ioaddr); /* Switch back to Bank 0 */
|
| 589 |
|
|
|
| 590 |
|
|
/* Mask all the interrupts. */
|
| 591 |
|
|
outb(ALL_MASK, ioaddr + INT_MASK_REG);
|
| 592 |
|
|
|
| 593 |
|
|
/* clear all interrupts */
|
| 594 |
|
|
outb(ALL_MASK, ioaddr + STATUS_REG);
|
| 595 |
|
|
|
| 596 |
|
|
return dev->irq;
|
| 597 |
|
|
}
|
| 598 |
|
|
|
| 599 |
|
|
static int
|
| 600 |
|
|
eepro_open(struct device *dev)
|
| 601 |
|
|
{
|
| 602 |
|
|
unsigned short temp_reg, old8, old9;
|
| 603 |
|
|
int i, ioaddr = dev->base_addr, rcv_ram = dev->mem_end;
|
| 604 |
|
|
struct eepro_local *lp = (struct eepro_local *)dev->priv;
|
| 605 |
|
|
|
| 606 |
|
|
if (net_debug > 3)
|
| 607 |
|
|
printk("eepro: entering eepro_open routine.\n");
|
| 608 |
|
|
|
| 609 |
|
|
if ((dev->dev_addr[0] == SA_ADDR0 &&
|
| 610 |
|
|
dev->dev_addr[1] == SA_ADDR1 &&
|
| 611 |
|
|
dev->dev_addr[2] == SA_ADDR2)&&
|
| 612 |
|
|
(dev->dev_addr[3] != SA3_ADDR3))
|
| 613 |
|
|
{
|
| 614 |
|
|
lp->eepro = 1;
|
| 615 |
|
|
if (net_debug > 3) printk("p->eepro = 1;\n");
|
| 616 |
|
|
} /* Yes, an Intel EtherExpress Pro/10 */
|
| 617 |
|
|
|
| 618 |
|
|
else if ((dev->dev_addr[0] == SA2_ADDR0 &&
|
| 619 |
|
|
dev->dev_addr[1] == SA2_ADDR1 &&
|
| 620 |
|
|
dev->dev_addr[2] == SA2_ADDR2)||
|
| 621 |
|
|
(dev->dev_addr[0] == SA3_ADDR0 &&
|
| 622 |
|
|
dev->dev_addr[1] == SA3_ADDR1 &&
|
| 623 |
|
|
dev->dev_addr[2] == SA3_ADDR2 &&
|
| 624 |
|
|
dev->dev_addr[3] == SA3_ADDR3))
|
| 625 |
|
|
{
|
| 626 |
|
|
lp->eepro = 2; /* Yes, an Intel EtherExpress Pro/10+ */
|
| 627 |
|
|
if (net_debug > 3) printk("p->eepro = 2;\n");
|
| 628 |
|
|
}
|
| 629 |
|
|
|
| 630 |
|
|
else lp->eepro = 0; /* No, it is a generic 82585 lan card */
|
| 631 |
|
|
|
| 632 |
|
|
/* Get the interrupt vector for the 82595 */
|
| 633 |
|
|
if (dev->irq < 2 && eepro_grab_irq(dev) == 0) {
|
| 634 |
|
|
printk("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
|
| 635 |
|
|
return -EAGAIN;
|
| 636 |
|
|
}
|
| 637 |
|
|
|
| 638 |
|
|
if (irq2dev_map[dev->irq] != 0
|
| 639 |
|
|
|| (irq2dev_map[dev->irq] = dev) == 0)
|
| 640 |
|
|
return -EAGAIN;
|
| 641 |
|
|
|
| 642 |
|
|
/* Initialize the 82595. */
|
| 643 |
|
|
outb(BANK2_SELECT, ioaddr); /* be CAREFUL, BANK 2 now */
|
| 644 |
|
|
temp_reg = inb(ioaddr + EEPROM_REG);
|
| 645 |
|
|
lp->stepping = temp_reg >> 5; /* Get the stepping number of the 595 */
|
| 646 |
|
|
|
| 647 |
|
|
if (net_debug > 3)
|
| 648 |
|
|
printk("The stepping of the 82595 is %d\n", lp->stepping);
|
| 649 |
|
|
if (temp_reg & 0x10) /* Check the TurnOff Enable bit */
|
| 650 |
|
|
outb(temp_reg & 0xef, ioaddr + EEPROM_REG);
|
| 651 |
|
|
for (i=0; i < 6; i++)
|
| 652 |
|
|
outb(dev->dev_addr[i] , ioaddr + I_ADD_REG0 + i);
|
| 653 |
|
|
|
| 654 |
|
|
temp_reg = inb(ioaddr + REG1); /* Setup Transmit Chaining */
|
| 655 |
|
|
outb(temp_reg | XMT_Chain_Int | XMT_Chain_ErrStop /* and discard bad RCV frames */
|
| 656 |
|
|
| RCV_Discard_BadFrame, ioaddr + REG1);
|
| 657 |
|
|
temp_reg = inb(ioaddr + REG2); /* Match broadcast */
|
| 658 |
|
|
outb(temp_reg | 0x14, ioaddr + REG2);
|
| 659 |
|
|
temp_reg = inb(ioaddr + REG3);
|
| 660 |
|
|
outb(temp_reg & 0x3f, ioaddr + REG3); /* clear test mode */
|
| 661 |
|
|
|
| 662 |
|
|
/* Set the receiving mode */
|
| 663 |
|
|
outb(BANK1_SELECT, ioaddr); /* be CAREFUL, BANK 1 now */
|
| 664 |
|
|
|
| 665 |
|
|
/* Set the interrupt vector */
|
| 666 |
|
|
temp_reg = inb(ioaddr + INT_NO_REG);
|
| 667 |
|
|
|
| 668 |
|
|
if (lp->eepro == 2)
|
| 669 |
|
|
outb((temp_reg & 0xf8) | irqrmap2[dev->irq], ioaddr + INT_NO_REG);
|
| 670 |
|
|
else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
|
| 671 |
|
|
|
| 672 |
|
|
temp_reg = inb(ioaddr + INT_NO_REG);
|
| 673 |
|
|
|
| 674 |
|
|
if (lp->eepro == 2)
|
| 675 |
|
|
outb((temp_reg & 0xf0) | irqrmap2[dev->irq] | 0x08,ioaddr+INT_NO_REG);
|
| 676 |
|
|
else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
|
| 677 |
|
|
|
| 678 |
|
|
if (net_debug > 3)
|
| 679 |
|
|
printk("eepro_open: content of INT Reg is %x\n", temp_reg);
|
| 680 |
|
|
|
| 681 |
|
|
|
| 682 |
|
|
/* Initialize the RCV and XMT upper and lower limits */
|
| 683 |
|
|
outb(RCV_LOWER_LIMIT, ioaddr + RCV_LOWER_LIMIT_REG);
|
| 684 |
|
|
outb(RCV_UPPER_LIMIT, ioaddr + RCV_UPPER_LIMIT_REG);
|
| 685 |
|
|
outb(XMT_LOWER_LIMIT, ioaddr + XMT_LOWER_LIMIT_REG);
|
| 686 |
|
|
outb(XMT_UPPER_LIMIT, ioaddr + XMT_UPPER_LIMIT_REG);
|
| 687 |
|
|
|
| 688 |
|
|
/* Enable the interrupt line. */
|
| 689 |
|
|
temp_reg = inb(ioaddr + REG1);
|
| 690 |
|
|
outb(temp_reg | INT_ENABLE, ioaddr + REG1);
|
| 691 |
|
|
outb(BANK0_SELECT, ioaddr); /* Switch back to Bank 0 */
|
| 692 |
|
|
|
| 693 |
|
|
/* Let RX and TX events to interrupt */
|
| 694 |
|
|
outb(ALL_MASK & ~(RX_MASK | TX_MASK), ioaddr + INT_MASK_REG);
|
| 695 |
|
|
|
| 696 |
|
|
/* clear all interrupts */
|
| 697 |
|
|
outb(ALL_MASK, ioaddr + STATUS_REG);
|
| 698 |
|
|
|
| 699 |
|
|
/* Initialize RCV */
|
| 700 |
|
|
outw(RCV_LOWER_LIMIT << 8, ioaddr + RCV_BAR);
|
| 701 |
|
|
lp->rx_start = (RCV_LOWER_LIMIT << 8) ;
|
| 702 |
|
|
outw((RCV_UPPER_LIMIT << 8) | 0xfe, ioaddr + RCV_STOP);
|
| 703 |
|
|
|
| 704 |
|
|
/* Initialize XMT */
|
| 705 |
|
|
outw(XMT_LOWER_LIMIT << 8, ioaddr + XMT_BAR);
|
| 706 |
|
|
|
| 707 |
|
|
/* Check for the i82595TX and i82595FX */
|
| 708 |
|
|
old8 = inb(ioaddr + 8);
|
| 709 |
|
|
outb(~old8, ioaddr + 8);
|
| 710 |
|
|
|
| 711 |
|
|
if ((temp_reg = inb(ioaddr + 8)) == old8) {
|
| 712 |
|
|
if (net_debug > 3)
|
| 713 |
|
|
printk("i82595 detected!\n");
|
| 714 |
|
|
lp->version = LAN595;
|
| 715 |
|
|
}
|
| 716 |
|
|
else {
|
| 717 |
|
|
lp->version = LAN595TX;
|
| 718 |
|
|
outb(old8, ioaddr + 8);
|
| 719 |
|
|
old9 = inb(ioaddr + 9);
|
| 720 |
|
|
outb(~old9, ioaddr + 9);
|
| 721 |
|
|
|
| 722 |
|
|
if (((temp_reg = inb(ioaddr + 9)) == ( (~old9)&0xff) )) {
|
| 723 |
|
|
enum iftype { AUI=0, BNC=1, TPE=2 };
|
| 724 |
|
|
|
| 725 |
|
|
if (net_debug > 3) {
|
| 726 |
|
|
printk("temp_reg: %#x ~old9: %#x\n",temp_reg, ~old9);
|
| 727 |
|
|
printk("i82595FX detected!\n");
|
| 728 |
|
|
}
|
| 729 |
|
|
|
| 730 |
|
|
lp->version = LAN595FX;
|
| 731 |
|
|
outb(old9, ioaddr + 9);
|
| 732 |
|
|
|
| 733 |
|
|
if (dev->if_port != TPE) { /* Hopefully, this will fix the
|
| 734 |
|
|
problem of using Pentiums and
|
| 735 |
|
|
pro/10 w/ BNC. */
|
| 736 |
|
|
outb(BANK2_SELECT, ioaddr); /* be CAREFUL, BANK 2 now */
|
| 737 |
|
|
temp_reg = inb(ioaddr + REG13);
|
| 738 |
|
|
|
| 739 |
|
|
/* disable the full duplex mode since it is not
|
| 740 |
|
|
applicable with the 10Base2 cable. */
|
| 741 |
|
|
outb(temp_reg & ~(FDX | A_N_ENABLE), REG13);
|
| 742 |
|
|
outb(BANK0_SELECT, ioaddr); /* be CAREFUL, BANK 0 now */
|
| 743 |
|
|
}
|
| 744 |
|
|
}
|
| 745 |
|
|
else if (net_debug > 3) {
|
| 746 |
|
|
printk("temp_reg: %#x ~old9: %#x\n",temp_reg,((~old9)&0xff));
|
| 747 |
|
|
printk("i82595TX detected!\n");
|
| 748 |
|
|
}
|
| 749 |
|
|
}
|
| 750 |
|
|
|
| 751 |
|
|
outb(SEL_RESET_CMD, ioaddr);
|
| 752 |
|
|
|
| 753 |
|
|
/* We are supposed to wait for 2 us after a SEL_RESET */
|
| 754 |
|
|
SLOW_DOWN_IO;
|
| 755 |
|
|
SLOW_DOWN_IO;
|
| 756 |
|
|
|
| 757 |
|
|
lp->tx_start = lp->tx_end = XMT_LOWER_LIMIT << 8; /* or = RCV_RAM */
|
| 758 |
|
|
lp->tx_last = 0;
|
| 759 |
|
|
|
| 760 |
|
|
dev->tbusy = 0;
|
| 761 |
|
|
dev->interrupt = 0;
|
| 762 |
|
|
dev->start = 1;
|
| 763 |
|
|
|
| 764 |
|
|
if (net_debug > 3)
|
| 765 |
|
|
printk("eepro: exiting eepro_open routine.\n");
|
| 766 |
|
|
|
| 767 |
|
|
outb(RCV_ENABLE_CMD, ioaddr);
|
| 768 |
|
|
MOD_INC_USE_COUNT;
|
| 769 |
|
|
|
| 770 |
|
|
return 0;
|
| 771 |
|
|
}
|
| 772 |
|
|
|
| 773 |
|
|
static int
|
| 774 |
|
|
eepro_send_packet(struct sk_buff *skb, struct device *dev)
|
| 775 |
|
|
{
|
| 776 |
|
|
struct eepro_local *lp = (struct eepro_local *)dev->priv;
|
| 777 |
|
|
int ioaddr = dev->base_addr;
|
| 778 |
|
|
int rcv_ram = dev->mem_end;
|
| 779 |
|
|
|
| 780 |
|
|
if (net_debug > 5)
|
| 781 |
|
|
printk("eepro: entering eepro_send_packet routine.\n");
|
| 782 |
|
|
|
| 783 |
|
|
if (dev->tbusy) {
|
| 784 |
|
|
/* If we get here, some higher level has decided we are broken.
|
| 785 |
|
|
There should really be a "kick me" function call instead. */
|
| 786 |
|
|
|
| 787 |
|
|
int tickssofar = jiffies - dev->trans_start;
|
| 788 |
|
|
|
| 789 |
|
|
if (tickssofar < 40)
|
| 790 |
|
|
return 1;
|
| 791 |
|
|
|
| 792 |
|
|
if (net_debug > 1)
|
| 793 |
|
|
printk("%s: transmit timed out, %s?\n", dev->name,
|
| 794 |
|
|
"network cable problem");
|
| 795 |
|
|
|
| 796 |
|
|
lp->stats.tx_errors++;
|
| 797 |
|
|
|
| 798 |
|
|
/* Try to restart the adaptor. */
|
| 799 |
|
|
outb(SEL_RESET_CMD, ioaddr);
|
| 800 |
|
|
|
| 801 |
|
|
/* We are supposed to wait for 2 us after a SEL_RESET */
|
| 802 |
|
|
SLOW_DOWN_IO;
|
| 803 |
|
|
SLOW_DOWN_IO;
|
| 804 |
|
|
|
| 805 |
|
|
/* Do I also need to flush the transmit buffers here? YES? */
|
| 806 |
|
|
lp->tx_start = lp->tx_end = rcv_ram;
|
| 807 |
|
|
lp->tx_last = 0;
|
| 808 |
|
|
|
| 809 |
|
|
dev->tbusy=0;
|
| 810 |
|
|
dev->trans_start = jiffies;
|
| 811 |
|
|
outb(RCV_ENABLE_CMD, ioaddr);
|
| 812 |
|
|
}
|
| 813 |
|
|
|
| 814 |
|
|
/* If some higher layer thinks we've missed an tx-done interrupt
|
| 815 |
|
|
we are passed NULL. Caution: dev_tint() handles the cli()/sti()
|
| 816 |
|
|
itself. */
|
| 817 |
|
|
|
| 818 |
|
|
if (skb == NULL) {
|
| 819 |
|
|
dev_tint(dev);
|
| 820 |
|
|
return 0;
|
| 821 |
|
|
}
|
| 822 |
|
|
|
| 823 |
|
|
/* Block a timer-based transmit from overlapping. */
|
| 824 |
|
|
|
| 825 |
|
|
if (set_bit(0, (void*)&dev->tbusy) != 0)
|
| 826 |
|
|
printk("%s: Transmitter access conflict.\n", dev->name);
|
| 827 |
|
|
else {
|
| 828 |
|
|
short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
|
| 829 |
|
|
unsigned char *buf = skb->data;
|
| 830 |
|
|
hardware_send_packet(dev, buf, length);
|
| 831 |
|
|
dev->trans_start = jiffies;
|
| 832 |
|
|
}
|
| 833 |
|
|
|
| 834 |
|
|
dev_kfree_skb (skb, FREE_WRITE);
|
| 835 |
|
|
|
| 836 |
|
|
/* You might need to clean up and record Tx statistics here. */
|
| 837 |
|
|
/* lp->stats.tx_aborted_errors++; */
|
| 838 |
|
|
|
| 839 |
|
|
if (net_debug > 5)
|
| 840 |
|
|
printk("eepro: exiting eepro_send_packet routine.\n");
|
| 841 |
|
|
|
| 842 |
|
|
return 0;
|
| 843 |
|
|
}
|
| 844 |
|
|
|
| 845 |
|
|
/* The typical workload of the driver:
|
| 846 |
|
|
Handle the network interface interrupts. */
|
| 847 |
|
|
|
| 848 |
|
|
static void
|
| 849 |
|
|
eepro_interrupt(int irq, void *dev_id, struct pt_regs * regs)
|
| 850 |
|
|
{
|
| 851 |
|
|
struct device *dev = (struct device *)(irq2dev_map[irq]);
|
| 852 |
|
|
int ioaddr, status, boguscount = 20;
|
| 853 |
|
|
|
| 854 |
|
|
if (net_debug > 5)
|
| 855 |
|
|
printk("eepro: entering eepro_interrupt routine.\n");
|
| 856 |
|
|
|
| 857 |
|
|
if (dev == NULL) {
|
| 858 |
|
|
printk ("eepro_interrupt(): irq %d for unknown device.\n", irq);
|
| 859 |
|
|
return;
|
| 860 |
|
|
}
|
| 861 |
|
|
|
| 862 |
|
|
dev->interrupt = 1;
|
| 863 |
|
|
|
| 864 |
|
|
ioaddr = dev->base_addr;
|
| 865 |
|
|
|
| 866 |
|
|
do {
|
| 867 |
|
|
status = inb(ioaddr + STATUS_REG);
|
| 868 |
|
|
|
| 869 |
|
|
if (status & RX_INT) {
|
| 870 |
|
|
if (net_debug > 4)
|
| 871 |
|
|
printk("eepro: packet received interrupt.\n");
|
| 872 |
|
|
/* Acknowledge the RX_INT */
|
| 873 |
|
|
outb(RX_INT, ioaddr + STATUS_REG);
|
| 874 |
|
|
/* Get the received packets */
|
| 875 |
|
|
eepro_rx(dev);
|
| 876 |
|
|
}
|
| 877 |
|
|
else if (status & TX_INT) {
|
| 878 |
|
|
if (net_debug > 4)
|
| 879 |
|
|
printk("eepro: packet transmit interrupt.\n");
|
| 880 |
|
|
/* Acknowledge the TX_INT */
|
| 881 |
|
|
outb(TX_INT, ioaddr + STATUS_REG);
|
| 882 |
|
|
/* Process the status of transmitted packets */
|
| 883 |
|
|
eepro_transmit_interrupt(dev);
|
| 884 |
|
|
}
|
| 885 |
|
|
|
| 886 |
|
|
} while ((boguscount-- > 0) && (status & 0x06));
|
| 887 |
|
|
|
| 888 |
|
|
dev->interrupt = 0;
|
| 889 |
|
|
|
| 890 |
|
|
if (net_debug > 5)
|
| 891 |
|
|
printk("eepro: exiting eepro_interrupt routine.\n");
|
| 892 |
|
|
|
| 893 |
|
|
return;
|
| 894 |
|
|
}
|
| 895 |
|
|
|
| 896 |
|
|
static int
|
| 897 |
|
|
eepro_close(struct device *dev)
|
| 898 |
|
|
{
|
| 899 |
|
|
struct eepro_local *lp = (struct eepro_local *)dev->priv;
|
| 900 |
|
|
int ioaddr = dev->base_addr;
|
| 901 |
|
|
int rcv_ram = dev->mem_end;
|
| 902 |
|
|
short temp_reg;
|
| 903 |
|
|
|
| 904 |
|
|
dev->tbusy = 1;
|
| 905 |
|
|
dev->start = 0;
|
| 906 |
|
|
|
| 907 |
|
|
outb(BANK1_SELECT, ioaddr); /* Switch back to Bank 1 */
|
| 908 |
|
|
|
| 909 |
|
|
/* Disable the physical interrupt line. */
|
| 910 |
|
|
temp_reg = inb(ioaddr + REG1);
|
| 911 |
|
|
outb(temp_reg & 0x7f, ioaddr + REG1);
|
| 912 |
|
|
outb(BANK0_SELECT, ioaddr); /* Switch back to Bank 0 */
|
| 913 |
|
|
|
| 914 |
|
|
/* Flush the Tx and disable Rx. */
|
| 915 |
|
|
outb(STOP_RCV_CMD, ioaddr);
|
| 916 |
|
|
|
| 917 |
|
|
lp->tx_start = lp->tx_end = rcv_ram ;
|
| 918 |
|
|
lp->tx_last = 0;
|
| 919 |
|
|
|
| 920 |
|
|
/* Mask all the interrupts. */
|
| 921 |
|
|
outb(ALL_MASK, ioaddr + INT_MASK_REG);
|
| 922 |
|
|
|
| 923 |
|
|
/* clear all interrupts */
|
| 924 |
|
|
outb(ALL_MASK, ioaddr + STATUS_REG);
|
| 925 |
|
|
|
| 926 |
|
|
/* Reset the 82595 */
|
| 927 |
|
|
outb(RESET_CMD, ioaddr);
|
| 928 |
|
|
|
| 929 |
|
|
/* release the interrupt */
|
| 930 |
|
|
free_irq(dev->irq, NULL);
|
| 931 |
|
|
irq2dev_map[dev->irq] = 0;
|
| 932 |
|
|
|
| 933 |
|
|
/* Update the statistics here. What statistics? */
|
| 934 |
|
|
/* We are supposed to wait for 200 us after a RESET */
|
| 935 |
|
|
SLOW_DOWN_IO;
|
| 936 |
|
|
SLOW_DOWN_IO; /* May not be enough? */
|
| 937 |
|
|
MOD_DEC_USE_COUNT;
|
| 938 |
|
|
|
| 939 |
|
|
return 0;
|
| 940 |
|
|
}
|
| 941 |
|
|
|
| 942 |
|
|
/* Get the current statistics. This may be called with the card open or
|
| 943 |
|
|
closed. */
|
| 944 |
|
|
static struct enet_statistics *
|
| 945 |
|
|
eepro_get_stats(struct device *dev)
|
| 946 |
|
|
{
|
| 947 |
|
|
struct eepro_local *lp = (struct eepro_local *)dev->priv;
|
| 948 |
|
|
return &lp->stats;
|
| 949 |
|
|
}
|
| 950 |
|
|
|
| 951 |
|
|
/* Set or clear the multicast filter for this adaptor.
|
| 952 |
|
|
*/
|
| 953 |
|
|
|
| 954 |
|
|
static void
|
| 955 |
|
|
set_multicast_list(struct device *dev)
|
| 956 |
|
|
{
|
| 957 |
|
|
struct eepro_local *lp = (struct eepro_local *)dev->priv;
|
| 958 |
|
|
short ioaddr = dev->base_addr;
|
| 959 |
|
|
unsigned short mode;
|
| 960 |
|
|
struct dev_mc_list *dmi=dev->mc_list;
|
| 961 |
|
|
|
| 962 |
|
|
if (dev->flags&(IFF_ALLMULTI|IFF_PROMISC) || dev->mc_count > 63)
|
| 963 |
|
|
{
|
| 964 |
|
|
/*
|
| 965 |
|
|
* We must make the kernel realise we had to move
|
| 966 |
|
|
* into promisc mode or we start all out war on
|
| 967 |
|
|
* the cable. If it was a promisc request the
|
| 968 |
|
|
* flag is already set. If not we assert it.
|
| 969 |
|
|
*/
|
| 970 |
|
|
dev->flags|=IFF_PROMISC;
|
| 971 |
|
|
outb(BANK2_SELECT, ioaddr); /* be CAREFUL, BANK 2 now */
|
| 972 |
|
|
mode = inb(ioaddr + REG2);
|
| 973 |
|
|
outb(mode | PRMSC_Mode, ioaddr + REG2);
|
| 974 |
|
|
mode = inb(ioaddr + REG3);
|
| 975 |
|
|
outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
|
| 976 |
|
|
outb(BANK0_SELECT, ioaddr); /* Return to BANK 0 now */
|
| 977 |
|
|
printk("%s: promiscuous mode enabled.\n", dev->name);
|
| 978 |
|
|
}
|
| 979 |
|
|
|
| 980 |
|
|
else if (dev->mc_count==0 )
|
| 981 |
|
|
{
|
| 982 |
|
|
outb(BANK2_SELECT, ioaddr); /* be CAREFUL, BANK 2 now */
|
| 983 |
|
|
mode = inb(ioaddr + REG2);
|
| 984 |
|
|
outb(mode & 0xd6, ioaddr + REG2); /* Turn off Multi-IA and PRMSC_Mode bits */
|
| 985 |
|
|
mode = inb(ioaddr + REG3);
|
| 986 |
|
|
outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
|
| 987 |
|
|
outb(BANK0_SELECT, ioaddr); /* Return to BANK 0 now */
|
| 988 |
|
|
}
|
| 989 |
|
|
|
| 990 |
|
|
else
|
| 991 |
|
|
{
|
| 992 |
|
|
unsigned short status, *eaddrs;
|
| 993 |
|
|
int i, boguscount = 0;
|
| 994 |
|
|
|
| 995 |
|
|
/* Disable RX and TX interrupts. Necessary to avoid
|
| 996 |
|
|
corruption of the HOST_ADDRESS_REG by interrupt
|
| 997 |
|
|
service routines. */
|
| 998 |
|
|
outb(ALL_MASK, ioaddr + INT_MASK_REG);
|
| 999 |
|
|
outb(BANK2_SELECT, ioaddr); /* be CAREFUL, BANK 2 now */
|
| 1000 |
|
|
mode = inb(ioaddr + REG2);
|
| 1001 |
|
|
outb(mode | Multi_IA, ioaddr + REG2);
|
| 1002 |
|
|
mode = inb(ioaddr + REG3);
|
| 1003 |
|
|
outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
|
| 1004 |
|
|
outb(BANK0_SELECT, ioaddr); /* Return to BANK 0 now */
|
| 1005 |
|
|
outw(lp->tx_end, ioaddr + HOST_ADDRESS_REG);
|
| 1006 |
|
|
outw(MC_SETUP, ioaddr + IO_PORT);
|
| 1007 |
|
|
outw(0, ioaddr + IO_PORT);
|
| 1008 |
|
|
outw(0, ioaddr + IO_PORT);
|
| 1009 |
|
|
outw(6*(dev->mc_count + 1), ioaddr + IO_PORT);
|
| 1010 |
|
|
|
| 1011 |
|
|
for (i = 0; i < dev->mc_count; i++)
|
| 1012 |
|
|
{
|
| 1013 |
|
|
eaddrs=(unsigned short *)dmi->dmi_addr;
|
| 1014 |
|
|
dmi=dmi->next;
|
| 1015 |
|
|
outw(*eaddrs++, ioaddr + IO_PORT);
|
| 1016 |
|
|
outw(*eaddrs++, ioaddr + IO_PORT);
|
| 1017 |
|
|
outw(*eaddrs++, ioaddr + IO_PORT);
|
| 1018 |
|
|
}
|
| 1019 |
|
|
|
| 1020 |
|
|
eaddrs = (unsigned short *) dev->dev_addr;
|
| 1021 |
|
|
outw(eaddrs[0], ioaddr + IO_PORT);
|
| 1022 |
|
|
outw(eaddrs[1], ioaddr + IO_PORT);
|
| 1023 |
|
|
outw(eaddrs[2], ioaddr + IO_PORT);
|
| 1024 |
|
|
outw(lp->tx_end, ioaddr + XMT_BAR);
|
| 1025 |
|
|
outb(MC_SETUP, ioaddr);
|
| 1026 |
|
|
|
| 1027 |
|
|
/* Update the transmit queue */
|
| 1028 |
|
|
i = lp->tx_end + XMT_HEADER + 6*(dev->mc_count + 1);
|
| 1029 |
|
|
|
| 1030 |
|
|
if (lp->tx_start != lp->tx_end)
|
| 1031 |
|
|
{
|
| 1032 |
|
|
/* update the next address and the chain bit in the
|
| 1033 |
|
|
last packet */
|
| 1034 |
|
|
outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
|
| 1035 |
|
|
outw(i, ioaddr + IO_PORT);
|
| 1036 |
|
|
outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
|
| 1037 |
|
|
status = inw(ioaddr + IO_PORT);
|
| 1038 |
|
|
outw(status | CHAIN_BIT, ioaddr + IO_PORT);
|
| 1039 |
|
|
lp->tx_end = i ;
|
| 1040 |
|
|
}
|
| 1041 |
|
|
else {
|
| 1042 |
|
|
lp->tx_start = lp->tx_end = i ;
|
| 1043 |
|
|
}
|
| 1044 |
|
|
|
| 1045 |
|
|
/* Acknowledge that the MC setup is done */
|
| 1046 |
|
|
do { /* We should be doing this in the eepro_interrupt()! */
|
| 1047 |
|
|
SLOW_DOWN_IO;
|
| 1048 |
|
|
SLOW_DOWN_IO;
|
| 1049 |
|
|
|
| 1050 |
|
|
if (inb(ioaddr + STATUS_REG) & 0x08)
|
| 1051 |
|
|
{
|
| 1052 |
|
|
i = inb(ioaddr);
|
| 1053 |
|
|
outb(0x08, ioaddr + STATUS_REG);
|
| 1054 |
|
|
|
| 1055 |
|
|
if (i & 0x20) { /* command ABORTed */
|
| 1056 |
|
|
printk("%s: multicast setup failed.\n",
|
| 1057 |
|
|
dev->name);
|
| 1058 |
|
|
break;
|
| 1059 |
|
|
} else if ((i & 0x0f) == 0x03) { /* MC-Done */
|
| 1060 |
|
|
printk("%s: set Rx mode to %d addresses.\n",
|
| 1061 |
|
|
dev->name, dev->mc_count);
|
| 1062 |
|
|
break;
|
| 1063 |
|
|
}
|
| 1064 |
|
|
}
|
| 1065 |
|
|
} while (++boguscount < 100);
|
| 1066 |
|
|
|
| 1067 |
|
|
/* Re-enable RX and TX interrupts */
|
| 1068 |
|
|
outb(ALL_MASK & ~(RX_MASK | TX_MASK), ioaddr + INT_MASK_REG);
|
| 1069 |
|
|
|
| 1070 |
|
|
}
|
| 1071 |
|
|
outb(RCV_ENABLE_CMD, ioaddr);
|
| 1072 |
|
|
}
|
| 1073 |
|
|
|
| 1074 |
|
|
/* The horrible routine to read a word from the serial EEPROM. */
|
| 1075 |
|
|
/* IMPORTANT - the 82595 will be set to Bank 0 after the eeprom is read */
|
| 1076 |
|
|
/* The delay between EEPROM clock transitions. */
|
| 1077 |
|
|
|
| 1078 |
|
|
#define eeprom_delay() { int _i = 40; while (--_i > 0) { __SLOW_DOWN_IO; }}
|
| 1079 |
|
|
#define EE_READ_CMD (6 << 6)
|
| 1080 |
|
|
|
| 1081 |
|
|
int
|
| 1082 |
|
|
read_eeprom(int ioaddr, int location)
|
| 1083 |
|
|
{
|
| 1084 |
|
|
int i;
|
| 1085 |
|
|
unsigned short retval = 0;
|
| 1086 |
|
|
short ee_addr = ioaddr + EEPROM_REG;
|
| 1087 |
|
|
int read_cmd = location | EE_READ_CMD;
|
| 1088 |
|
|
short ctrl_val = EECS ;
|
| 1089 |
|
|
|
| 1090 |
|
|
outb(BANK2_SELECT, ioaddr);
|
| 1091 |
|
|
outb(ctrl_val, ee_addr);
|
| 1092 |
|
|
|
| 1093 |
|
|
/* Shift the read command bits out. */
|
| 1094 |
|
|
for (i = 8; i >= 0; i--) {
|
| 1095 |
|
|
short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI
|
| 1096 |
|
|
: ctrl_val;
|
| 1097 |
|
|
outb(outval, ee_addr);
|
| 1098 |
|
|
outb(outval | EESK, ee_addr); /* EEPROM clock tick. */
|
| 1099 |
|
|
eeprom_delay();
|
| 1100 |
|
|
outb(outval, ee_addr); /* Finish EEPROM a clock tick. */
|
| 1101 |
|
|
eeprom_delay();
|
| 1102 |
|
|
}
|
| 1103 |
|
|
outb(ctrl_val, ee_addr);
|
| 1104 |
|
|
|
| 1105 |
|
|
for (i = 16; i > 0; i--) {
|
| 1106 |
|
|
outb(ctrl_val | EESK, ee_addr); eeprom_delay();
|
| 1107 |
|
|
retval = (retval << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0);
|
| 1108 |
|
|
outb(ctrl_val, ee_addr); eeprom_delay();
|
| 1109 |
|
|
}
|
| 1110 |
|
|
/* Terminate the EEPROM access. */
|
| 1111 |
|
|
ctrl_val &= ~EECS;
|
| 1112 |
|
|
outb(ctrl_val | EESK, ee_addr);
|
| 1113 |
|
|
eeprom_delay();
|
| 1114 |
|
|
outb(ctrl_val, ee_addr);
|
| 1115 |
|
|
eeprom_delay();
|
| 1116 |
|
|
outb(BANK0_SELECT, ioaddr);
|
| 1117 |
|
|
return retval;
|
| 1118 |
|
|
}
|
| 1119 |
|
|
|
| 1120 |
|
|
static void
|
| 1121 |
|
|
hardware_send_packet(struct device *dev, void *buf, short length)
|
| 1122 |
|
|
{
|
| 1123 |
|
|
struct eepro_local *lp = (struct eepro_local *)dev->priv;
|
| 1124 |
|
|
short ioaddr = dev->base_addr;
|
| 1125 |
|
|
int rcv_ram = dev->mem_end;
|
| 1126 |
|
|
unsigned status, tx_available, last, end, boguscount = 100;
|
| 1127 |
|
|
|
| 1128 |
|
|
if (net_debug > 5)
|
| 1129 |
|
|
printk("eepro: entering hardware_send_packet routine.\n");
|
| 1130 |
|
|
|
| 1131 |
|
|
while (boguscount-- > 0) {
|
| 1132 |
|
|
|
| 1133 |
|
|
/* Disable RX and TX interrupts. Necessary to avoid
|
| 1134 |
|
|
corruption of the HOST_ADDRESS_REG by interrupt
|
| 1135 |
|
|
service routines. */
|
| 1136 |
|
|
outb(ALL_MASK, ioaddr + INT_MASK_REG);
|
| 1137 |
|
|
|
| 1138 |
|
|
if (dev->interrupt == 1) {
|
| 1139 |
|
|
/* Enable RX and TX interrupts */
|
| 1140 |
|
|
outb(ALL_MASK & ~(RX_MASK | TX_MASK), ioaddr + INT_MASK_REG);
|
| 1141 |
|
|
continue;
|
| 1142 |
|
|
}
|
| 1143 |
|
|
|
| 1144 |
|
|
/* determine how much of the transmit buffer space is available */
|
| 1145 |
|
|
if (lp->tx_end > lp->tx_start)
|
| 1146 |
|
|
tx_available = XMT_RAM - (lp->tx_end - lp->tx_start);
|
| 1147 |
|
|
else if (lp->tx_end < lp->tx_start)
|
| 1148 |
|
|
tx_available = lp->tx_start - lp->tx_end;
|
| 1149 |
|
|
else tx_available = XMT_RAM;
|
| 1150 |
|
|
|
| 1151 |
|
|
if (((((length + 3) >> 1) << 1) + 2*XMT_HEADER)
|
| 1152 |
|
|
>= tx_available) /* No space available ??? */
|
| 1153 |
|
|
{
|
| 1154 |
|
|
eepro_transmit_interrupt(dev); /* Clean up the transmiting queue */
|
| 1155 |
|
|
/* Enable RX and TX interrupts */
|
| 1156 |
|
|
outb(ALL_MASK & ~(RX_MASK | TX_MASK), ioaddr + INT_MASK_REG);
|
| 1157 |
|
|
continue;
|
| 1158 |
|
|
}
|
| 1159 |
|
|
|
| 1160 |
|
|
last = lp->tx_end;
|
| 1161 |
|
|
end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
|
| 1162 |
|
|
if (end >= RAM_SIZE) { /* the transmit buffer is wrapped around */
|
| 1163 |
|
|
|
| 1164 |
|
|
if ((RAM_SIZE - last) <= XMT_HEADER) {
|
| 1165 |
|
|
/* Arrrr!!!, must keep the xmt header together,
|
| 1166 |
|
|
several days were lost to chase this one down. */
|
| 1167 |
|
|
last = rcv_ram;
|
| 1168 |
|
|
end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
|
| 1169 |
|
|
}
|
| 1170 |
|
|
|
| 1171 |
|
|
else end = rcv_ram + (end - RAM_SIZE);
|
| 1172 |
|
|
}
|
| 1173 |
|
|
|
| 1174 |
|
|
outw(last, ioaddr + HOST_ADDRESS_REG);
|
| 1175 |
|
|
outw(XMT_CMD, ioaddr + IO_PORT);
|
| 1176 |
|
|
outw(0, ioaddr + IO_PORT);
|
| 1177 |
|
|
outw(end, ioaddr + IO_PORT);
|
| 1178 |
|
|
outw(length, ioaddr + IO_PORT);
|
| 1179 |
|
|
|
| 1180 |
|
|
if (lp->version == LAN595)
|
| 1181 |
|
|
outsw(ioaddr + IO_PORT, buf, (length + 3) >> 1);
|
| 1182 |
|
|
|
| 1183 |
|
|
else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
|
| 1184 |
|
|
unsigned short temp = inb(ioaddr + INT_MASK_REG);
|
| 1185 |
|
|
outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
|
| 1186 |
|
|
outsl(ioaddr + IO_PORT_32_BIT, buf, (length + 3) >> 2);
|
| 1187 |
|
|
outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
|
| 1188 |
|
|
}
|
| 1189 |
|
|
|
| 1190 |
|
|
/* A dummy read to flush the DRAM write pipeline */
|
| 1191 |
|
|
status = inw(ioaddr + IO_PORT);
|
| 1192 |
|
|
|
| 1193 |
|
|
if (lp->tx_start == lp->tx_end) {
|
| 1194 |
|
|
outw(last, ioaddr + XMT_BAR);
|
| 1195 |
|
|
outb(XMT_CMD, ioaddr);
|
| 1196 |
|
|
lp->tx_start = last; /* I don't like to change tx_start here */
|
| 1197 |
|
|
}
|
| 1198 |
|
|
else {
|
| 1199 |
|
|
/* update the next address and the chain bit in the
|
| 1200 |
|
|
last packet */
|
| 1201 |
|
|
|
| 1202 |
|
|
if (lp->tx_end != last) {
|
| 1203 |
|
|
outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
|
| 1204 |
|
|
outw(last, ioaddr + IO_PORT);
|
| 1205 |
|
|
}
|
| 1206 |
|
|
|
| 1207 |
|
|
outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
|
| 1208 |
|
|
status = inw(ioaddr + IO_PORT);
|
| 1209 |
|
|
outw(status | CHAIN_BIT, ioaddr + IO_PORT);
|
| 1210 |
|
|
|
| 1211 |
|
|
/* Continue the transmit command */
|
| 1212 |
|
|
outb(RESUME_XMT_CMD, ioaddr);
|
| 1213 |
|
|
}
|
| 1214 |
|
|
lp->tx_last = last;
|
| 1215 |
|
|
lp->tx_end = end;
|
| 1216 |
|
|
|
| 1217 |
|
|
/* Enable RX and TX interrupts */
|
| 1218 |
|
|
outb(ALL_MASK & ~(RX_MASK | TX_MASK), ioaddr + INT_MASK_REG);
|
| 1219 |
|
|
|
| 1220 |
|
|
if (dev->tbusy) {
|
| 1221 |
|
|
dev->tbusy = 0;
|
| 1222 |
|
|
}
|
| 1223 |
|
|
|
| 1224 |
|
|
if (net_debug > 5)
|
| 1225 |
|
|
printk("eepro: exiting hardware_send_packet routine.\n");
|
| 1226 |
|
|
|
| 1227 |
|
|
return;
|
| 1228 |
|
|
}
|
| 1229 |
|
|
dev->tbusy = 1;
|
| 1230 |
|
|
|
| 1231 |
|
|
if (net_debug > 5)
|
| 1232 |
|
|
printk("eepro: exiting hardware_send_packet routine.\n");
|
| 1233 |
|
|
}
|
| 1234 |
|
|
|
| 1235 |
|
|
static void
|
| 1236 |
|
|
eepro_rx(struct device *dev)
|
| 1237 |
|
|
{
|
| 1238 |
|
|
struct eepro_local *lp = (struct eepro_local *)dev->priv;
|
| 1239 |
|
|
short ioaddr = dev->base_addr, rcv_ram = dev->mem_end;
|
| 1240 |
|
|
short boguscount = 20;
|
| 1241 |
|
|
short rcv_car = lp->rx_start;
|
| 1242 |
|
|
unsigned rcv_event, rcv_status, rcv_next_frame, rcv_size;
|
| 1243 |
|
|
|
| 1244 |
|
|
if (net_debug > 5)
|
| 1245 |
|
|
printk("eepro: entering eepro_rx routine.\n");
|
| 1246 |
|
|
|
| 1247 |
|
|
/* Set the read pointer to the start of the RCV */
|
| 1248 |
|
|
outw(rcv_car, ioaddr + HOST_ADDRESS_REG);
|
| 1249 |
|
|
|
| 1250 |
|
|
rcv_event = inw(ioaddr + IO_PORT);
|
| 1251 |
|
|
while (rcv_event == RCV_DONE) {
|
| 1252 |
|
|
|
| 1253 |
|
|
rcv_status = inw(ioaddr + IO_PORT);
|
| 1254 |
|
|
rcv_next_frame = inw(ioaddr + IO_PORT);
|
| 1255 |
|
|
rcv_size = inw(ioaddr + IO_PORT);
|
| 1256 |
|
|
|
| 1257 |
|
|
if ((rcv_status & (RX_OK | RX_ERROR)) == RX_OK) {
|
| 1258 |
|
|
|
| 1259 |
|
|
/* Malloc up new buffer. */
|
| 1260 |
|
|
struct sk_buff *skb;
|
| 1261 |
|
|
rcv_size &= 0x3fff;
|
| 1262 |
|
|
skb = dev_alloc_skb(rcv_size+5);
|
| 1263 |
|
|
|
| 1264 |
|
|
if (skb == NULL) {
|
| 1265 |
|
|
printk("%s: Memory squeeze, dropping packet.\n", dev->name);
|
| 1266 |
|
|
lp->stats.rx_dropped++;
|
| 1267 |
|
|
break;
|
| 1268 |
|
|
}
|
| 1269 |
|
|
|
| 1270 |
|
|
skb->dev = dev;
|
| 1271 |
|
|
skb_reserve(skb,2);
|
| 1272 |
|
|
|
| 1273 |
|
|
if (lp->version == LAN595)
|
| 1274 |
|
|
insw(ioaddr+IO_PORT, skb_put(skb,rcv_size), (rcv_size + 3) >> 1);
|
| 1275 |
|
|
|
| 1276 |
|
|
else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
|
| 1277 |
|
|
unsigned short temp = inb(ioaddr + INT_MASK_REG);
|
| 1278 |
|
|
outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
|
| 1279 |
|
|
insl(ioaddr+IO_PORT_32_BIT, skb_put(skb,rcv_size), (rcv_size + 3) >> 2);
|
| 1280 |
|
|
outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
|
| 1281 |
|
|
}
|
| 1282 |
|
|
|
| 1283 |
|
|
skb->protocol = eth_type_trans(skb,dev);
|
| 1284 |
|
|
netif_rx(skb);
|
| 1285 |
|
|
lp->stats.rx_packets++;
|
| 1286 |
|
|
}
|
| 1287 |
|
|
|
| 1288 |
|
|
else { /* Not sure will ever reach here,
|
| 1289 |
|
|
I set the 595 to discard bad received frames */
|
| 1290 |
|
|
lp->stats.rx_errors++;
|
| 1291 |
|
|
|
| 1292 |
|
|
if (rcv_status & 0x0100)
|
| 1293 |
|
|
lp->stats.rx_over_errors++;
|
| 1294 |
|
|
|
| 1295 |
|
|
else if (rcv_status & 0x0400)
|
| 1296 |
|
|
lp->stats.rx_frame_errors++;
|
| 1297 |
|
|
|
| 1298 |
|
|
else if (rcv_status & 0x0800)
|
| 1299 |
|
|
lp->stats.rx_crc_errors++;
|
| 1300 |
|
|
|
| 1301 |
|
|
printk("%s: event = %#x, status = %#x, next = %#x, size = %#x\n",
|
| 1302 |
|
|
dev->name, rcv_event, rcv_status, rcv_next_frame, rcv_size);
|
| 1303 |
|
|
}
|
| 1304 |
|
|
|
| 1305 |
|
|
if (rcv_status & 0x1000)
|
| 1306 |
|
|
lp->stats.rx_length_errors++;
|
| 1307 |
|
|
|
| 1308 |
|
|
if (--boguscount == 0)
|
| 1309 |
|
|
break;
|
| 1310 |
|
|
|
| 1311 |
|
|
rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
|
| 1312 |
|
|
lp->rx_start = rcv_next_frame;
|
| 1313 |
|
|
outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
|
| 1314 |
|
|
rcv_event = inw(ioaddr + IO_PORT);
|
| 1315 |
|
|
}
|
| 1316 |
|
|
if (rcv_car == 0)
|
| 1317 |
|
|
rcv_car = (RCV_UPPER_LIMIT << 8) | 0xff;
|
| 1318 |
|
|
|
| 1319 |
|
|
outw(rcv_car - 1, ioaddr + RCV_STOP);
|
| 1320 |
|
|
|
| 1321 |
|
|
if (net_debug > 5)
|
| 1322 |
|
|
printk("eepro: exiting eepro_rx routine.\n");
|
| 1323 |
|
|
}
|
| 1324 |
|
|
|
| 1325 |
|
|
static void
|
| 1326 |
|
|
eepro_transmit_interrupt(struct device *dev)
|
| 1327 |
|
|
{
|
| 1328 |
|
|
struct eepro_local *lp = (struct eepro_local *)dev->priv;
|
| 1329 |
|
|
short ioaddr = dev->base_addr;
|
| 1330 |
|
|
short boguscount = 20;
|
| 1331 |
|
|
short xmt_status;
|
| 1332 |
|
|
|
| 1333 |
|
|
while (lp->tx_start != lp->tx_end) {
|
| 1334 |
|
|
|
| 1335 |
|
|
outw(lp->tx_start, ioaddr + HOST_ADDRESS_REG);
|
| 1336 |
|
|
xmt_status = inw(ioaddr+IO_PORT);
|
| 1337 |
|
|
|
| 1338 |
|
|
if ((xmt_status & TX_DONE_BIT) == 0) break;
|
| 1339 |
|
|
|
| 1340 |
|
|
xmt_status = inw(ioaddr+IO_PORT);
|
| 1341 |
|
|
lp->tx_start = inw(ioaddr+IO_PORT);
|
| 1342 |
|
|
dev->tbusy = 0;
|
| 1343 |
|
|
mark_bh(NET_BH);
|
| 1344 |
|
|
|
| 1345 |
|
|
if (xmt_status & 0x2000)
|
| 1346 |
|
|
lp->stats.tx_packets++;
|
| 1347 |
|
|
else {
|
| 1348 |
|
|
lp->stats.tx_errors++;
|
| 1349 |
|
|
if (xmt_status & 0x0400)
|
| 1350 |
|
|
lp->stats.tx_carrier_errors++;
|
| 1351 |
|
|
printk("%s: XMT status = %#x\n",
|
| 1352 |
|
|
dev->name, xmt_status);
|
| 1353 |
|
|
}
|
| 1354 |
|
|
|
| 1355 |
|
|
if (xmt_status & 0x000f) {
|
| 1356 |
|
|
lp->stats.collisions += (xmt_status & 0x000f);
|
| 1357 |
|
|
}
|
| 1358 |
|
|
|
| 1359 |
|
|
if ((xmt_status & 0x0040) == 0x0) {
|
| 1360 |
|
|
lp->stats.tx_heartbeat_errors++;
|
| 1361 |
|
|
}
|
| 1362 |
|
|
|
| 1363 |
|
|
if (--boguscount == 0)
|
| 1364 |
|
|
break;
|
| 1365 |
|
|
}
|
| 1366 |
|
|
}
|
| 1367 |
|
|
|
| 1368 |
|
|
#ifdef MODULE
|
| 1369 |
|
|
|
| 1370 |
|
|
static char devicename[9] = { 0, };
|
| 1371 |
|
|
static struct device dev_eepro = {
|
| 1372 |
|
|
devicename, /* device name is inserted by linux/drivers/net/net_init.c */
|
| 1373 |
|
|
0, 0, 0, 0,
|
| 1374 |
|
|
0, 0,
|
| 1375 |
|
|
0, 0, 0, NULL, eepro_probe };
|
| 1376 |
|
|
static int io = 0x200;
|
| 1377 |
|
|
static int irq = 0;
|
| 1378 |
|
|
static int mem = (RCV_RAM/1024); /* Size of the rx buffer in KB */
|
| 1379 |
|
|
|
| 1380 |
|
|
int
|
| 1381 |
|
|
init_module(void)
|
| 1382 |
|
|
{
|
| 1383 |
|
|
if (io == 0)
|
| 1384 |
|
|
printk("eepro: You should not use auto-probing with insmod!\n");
|
| 1385 |
|
|
|
| 1386 |
|
|
dev_eepro.base_addr = io;
|
| 1387 |
|
|
dev_eepro.irq = irq;
|
| 1388 |
|
|
dev_eepro.mem_end = mem;
|
| 1389 |
|
|
|
| 1390 |
|
|
if (register_netdev(&dev_eepro) != 0)
|
| 1391 |
|
|
return -EIO;
|
| 1392 |
|
|
|
| 1393 |
|
|
return 0;
|
| 1394 |
|
|
}
|
| 1395 |
|
|
|
| 1396 |
|
|
void
|
| 1397 |
|
|
cleanup_module(void)
|
| 1398 |
|
|
{
|
| 1399 |
|
|
unregister_netdev(&dev_eepro);
|
| 1400 |
|
|
|
| 1401 |
|
|
kfree_s(dev_eepro.priv,sizeof(struct eepro_local));
|
| 1402 |
|
|
dev_eepro.priv=NULL;
|
| 1403 |
|
|
|
| 1404 |
|
|
/* If we don't do this, we can't re-insmod it later. */
|
| 1405 |
|
|
release_region(dev_eepro.base_addr, EEPRO_IO_EXTENT);
|
| 1406 |
|
|
}
|
| 1407 |
|
|
#endif /* MODULE */
|
