+++ /dev/null
-/* ----------------------------------------------------------------------------
-Linux PCMCIA ethernet adapter driver for the New Media Ethernet LAN.
- nmclan_cs.c,v 0.16 1995/07/01 06:42:17 rpao Exp rpao
-
- The Ethernet LAN uses the Advanced Micro Devices (AMD) Am79C940 Media
- Access Controller for Ethernet (MACE). It is essentially the Am2150
- PCMCIA Ethernet card contained in the Am2150 Demo Kit.
-
-Written by Roger C. Pao <rpao@paonet.org>
- Copyright 1995 Roger C. Pao
- Linux 2.5 cleanups Copyright Red Hat 2003
-
- This software may be used and distributed according to the terms of
- the GNU General Public License.
-
-Ported to Linux 1.3.* network driver environment by
- Matti Aarnio <mea@utu.fi>
-
-References
-
- Am2150 Technical Reference Manual, Revision 1.0, August 17, 1993
- Am79C940 (MACE) Data Sheet, 1994
- Am79C90 (C-LANCE) Data Sheet, 1994
- Linux PCMCIA Programmer's Guide v1.17
- /usr/src/linux/net/inet/dev.c, Linux kernel 1.2.8
-
- Eric Mears, New Media Corporation
- Tom Pollard, New Media Corporation
- Dean Siasoyco, New Media Corporation
- Ken Lesniak, Silicon Graphics, Inc. <lesniak@boston.sgi.com>
- Donald Becker <becker@scyld.com>
- David Hinds <dahinds@users.sourceforge.net>
-
- The Linux client driver is based on the 3c589_cs.c client driver by
- David Hinds.
-
- The Linux network driver outline is based on the 3c589_cs.c driver,
- the 8390.c driver, and the example skeleton.c kernel code, which are
- by Donald Becker.
-
- The Am2150 network driver hardware interface code is based on the
- OS/9000 driver for the New Media Ethernet LAN by Eric Mears.
-
- Special thanks for testing and help in debugging this driver goes
- to Ken Lesniak.
-
--------------------------------------------------------------------------------
-Driver Notes and Issues
--------------------------------------------------------------------------------
-
-1. Developed on a Dell 320SLi
- PCMCIA Card Services 2.6.2
- Linux dell 1.2.10 #1 Thu Jun 29 20:23:41 PDT 1995 i386
-
-2. rc.pcmcia may require loading pcmcia_core with io_speed=300:
- 'insmod pcmcia_core.o io_speed=300'.
- This will avoid problems with fast systems which causes rx_framecnt
- to return random values.
-
-3. If hot extraction does not work for you, use 'ifconfig eth0 down'
- before extraction.
-
-4. There is a bad slow-down problem in this driver.
-
-5. Future: Multicast processing. In the meantime, do _not_ compile your
- kernel with multicast ip enabled.
-
--------------------------------------------------------------------------------
-History
--------------------------------------------------------------------------------
-Log: nmclan_cs.c,v
- * 2.5.75-ac1 2003/07/11 Alan Cox <alan@lxorguk.ukuu.org.uk>
- * Fixed hang on card eject as we probe it
- * Cleaned up to use new style locking.
- *
- * Revision 0.16 1995/07/01 06:42:17 rpao
- * Bug fix: nmclan_reset() called CardServices incorrectly.
- *
- * Revision 0.15 1995/05/24 08:09:47 rpao
- * Re-implement MULTI_TX dev->tbusy handling.
- *
- * Revision 0.14 1995/05/23 03:19:30 rpao
- * Added, in nmclan_config(), "tuple.Attributes = 0;".
- * Modified MACE ID check to ignore chip revision level.
- * Avoid tx_free_frames race condition between _start_xmit and _interrupt.
- *
- * Revision 0.13 1995/05/18 05:56:34 rpao
- * Statistics changes.
- * Bug fix: nmclan_reset did not enable TX and RX: call restore_multicast_list.
- * Bug fix: mace_interrupt checks ~MACE_IMR_DEFAULT. Fixes driver lockup.
- *
- * Revision 0.12 1995/05/14 00:12:23 rpao
- * Statistics overhaul.
- *
-
-95/05/13 rpao V0.10a
- Bug fix: MACE statistics counters used wrong I/O ports.
- Bug fix: mace_interrupt() needed to allow statistics to be
- processed without RX or TX interrupts pending.
-95/05/11 rpao V0.10
- Multiple transmit request processing.
- Modified statistics to use MACE counters where possible.
-95/05/10 rpao V0.09 Bug fix: Must use IO_DATA_PATH_WIDTH_AUTO.
- *Released
-95/05/10 rpao V0.08
- Bug fix: Make all non-exported functions private by using
- static keyword.
- Bug fix: Test IntrCnt _before_ reading MACE_IR.
-95/05/10 rpao V0.07 Statistics.
-95/05/09 rpao V0.06 Fix rx_framecnt problem by addition of PCIC wait states.
-
----------------------------------------------------------------------------- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#define DRV_NAME "nmclan_cs"
-
-/* ----------------------------------------------------------------------------
-Conditional Compilation Options
----------------------------------------------------------------------------- */
-
-#define MULTI_TX 0
-#define RESET_ON_TIMEOUT 1
-#define TX_INTERRUPTABLE 1
-#define RESET_XILINX 0
-
-/* ----------------------------------------------------------------------------
-Include Files
----------------------------------------------------------------------------- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/in.h>
-#include <linux/delay.h>
-#include <linux/ethtool.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/if_arp.h>
-#include <linux/ioport.h>
-#include <linux/bitops.h>
-
-#include <pcmcia/cisreg.h>
-#include <pcmcia/cistpl.h>
-#include <pcmcia/ds.h>
-
-#include <linux/uaccess.h>
-#include <asm/io.h>
-
-/* ----------------------------------------------------------------------------
-Defines
----------------------------------------------------------------------------- */
-
-#define MACE_LADRF_LEN 8
- /* 8 bytes in Logical Address Filter */
-
-/* Loop Control Defines */
-#define MACE_MAX_IR_ITERATIONS 10
-#define MACE_MAX_RX_ITERATIONS 12
- /*
- TBD: Dean brought this up, and I assumed the hardware would
- handle it:
-
- If MACE_MAX_RX_ITERATIONS is > 1, rx_framecnt may still be
- non-zero when the isr exits. We may not get another interrupt
- to process the remaining packets for some time.
- */
-
-/*
-The Am2150 has a Xilinx XC3042 field programmable gate array (FPGA)
-which manages the interface between the MACE and the PCMCIA bus. It
-also includes buffer management for the 32K x 8 SRAM to control up to
-four transmit and 12 receive frames at a time.
-*/
-#define AM2150_MAX_TX_FRAMES 4
-#define AM2150_MAX_RX_FRAMES 12
-
-/* Am2150 Ethernet Card I/O Mapping */
-#define AM2150_RCV 0x00
-#define AM2150_XMT 0x04
-#define AM2150_XMT_SKIP 0x09
-#define AM2150_RCV_NEXT 0x0A
-#define AM2150_RCV_FRAME_COUNT 0x0B
-#define AM2150_MACE_BANK 0x0C
-#define AM2150_MACE_BASE 0x10
-
-/* MACE Registers */
-#define MACE_RCVFIFO 0
-#define MACE_XMTFIFO 1
-#define MACE_XMTFC 2
-#define MACE_XMTFS 3
-#define MACE_XMTRC 4
-#define MACE_RCVFC 5
-#define MACE_RCVFS 6
-#define MACE_FIFOFC 7
-#define MACE_IR 8
-#define MACE_IMR 9
-#define MACE_PR 10
-#define MACE_BIUCC 11
-#define MACE_FIFOCC 12
-#define MACE_MACCC 13
-#define MACE_PLSCC 14
-#define MACE_PHYCC 15
-#define MACE_CHIPIDL 16
-#define MACE_CHIPIDH 17
-#define MACE_IAC 18
-/* Reserved */
-#define MACE_LADRF 20
-#define MACE_PADR 21
-/* Reserved */
-/* Reserved */
-#define MACE_MPC 24
-/* Reserved */
-#define MACE_RNTPC 26
-#define MACE_RCVCC 27
-/* Reserved */
-#define MACE_UTR 29
-#define MACE_RTR1 30
-#define MACE_RTR2 31
-
-/* MACE Bit Masks */
-#define MACE_XMTRC_EXDEF 0x80
-#define MACE_XMTRC_XMTRC 0x0F
-
-#define MACE_XMTFS_XMTSV 0x80
-#define MACE_XMTFS_UFLO 0x40
-#define MACE_XMTFS_LCOL 0x20
-#define MACE_XMTFS_MORE 0x10
-#define MACE_XMTFS_ONE 0x08
-#define MACE_XMTFS_DEFER 0x04
-#define MACE_XMTFS_LCAR 0x02
-#define MACE_XMTFS_RTRY 0x01
-
-#define MACE_RCVFS_RCVSTS 0xF000
-#define MACE_RCVFS_OFLO 0x8000
-#define MACE_RCVFS_CLSN 0x4000
-#define MACE_RCVFS_FRAM 0x2000
-#define MACE_RCVFS_FCS 0x1000
-
-#define MACE_FIFOFC_RCVFC 0xF0
-#define MACE_FIFOFC_XMTFC 0x0F
-
-#define MACE_IR_JAB 0x80
-#define MACE_IR_BABL 0x40
-#define MACE_IR_CERR 0x20
-#define MACE_IR_RCVCCO 0x10
-#define MACE_IR_RNTPCO 0x08
-#define MACE_IR_MPCO 0x04
-#define MACE_IR_RCVINT 0x02
-#define MACE_IR_XMTINT 0x01
-
-#define MACE_MACCC_PROM 0x80
-#define MACE_MACCC_DXMT2PD 0x40
-#define MACE_MACCC_EMBA 0x20
-#define MACE_MACCC_RESERVED 0x10
-#define MACE_MACCC_DRCVPA 0x08
-#define MACE_MACCC_DRCVBC 0x04
-#define MACE_MACCC_ENXMT 0x02
-#define MACE_MACCC_ENRCV 0x01
-
-#define MACE_PHYCC_LNKFL 0x80
-#define MACE_PHYCC_DLNKTST 0x40
-#define MACE_PHYCC_REVPOL 0x20
-#define MACE_PHYCC_DAPC 0x10
-#define MACE_PHYCC_LRT 0x08
-#define MACE_PHYCC_ASEL 0x04
-#define MACE_PHYCC_RWAKE 0x02
-#define MACE_PHYCC_AWAKE 0x01
-
-#define MACE_IAC_ADDRCHG 0x80
-#define MACE_IAC_PHYADDR 0x04
-#define MACE_IAC_LOGADDR 0x02
-
-#define MACE_UTR_RTRE 0x80
-#define MACE_UTR_RTRD 0x40
-#define MACE_UTR_RPA 0x20
-#define MACE_UTR_FCOLL 0x10
-#define MACE_UTR_RCVFCSE 0x08
-#define MACE_UTR_LOOP_INCL_MENDEC 0x06
-#define MACE_UTR_LOOP_NO_MENDEC 0x04
-#define MACE_UTR_LOOP_EXTERNAL 0x02
-#define MACE_UTR_LOOP_NONE 0x00
-#define MACE_UTR_RESERVED 0x01
-
-/* Switch MACE register bank (only 0 and 1 are valid) */
-#define MACEBANK(win_num) outb((win_num), ioaddr + AM2150_MACE_BANK)
-
-#define MACE_IMR_DEFAULT \
- (0xFF - \
- ( \
- MACE_IR_CERR | \
- MACE_IR_RCVCCO | \
- MACE_IR_RNTPCO | \
- MACE_IR_MPCO | \
- MACE_IR_RCVINT | \
- MACE_IR_XMTINT \
- ) \
- )
-#undef MACE_IMR_DEFAULT
-#define MACE_IMR_DEFAULT 0x00 /* New statistics handling: grab everything */
-
-#define TX_TIMEOUT ((400*HZ)/1000)
-
-/* ----------------------------------------------------------------------------
-Type Definitions
----------------------------------------------------------------------------- */
-
-typedef struct _mace_statistics {
- /* MACE_XMTFS */
- int xmtsv;
- int uflo;
- int lcol;
- int more;
- int one;
- int defer;
- int lcar;
- int rtry;
-
- /* MACE_XMTRC */
- int exdef;
- int xmtrc;
-
- /* RFS1--Receive Status (RCVSTS) */
- int oflo;
- int clsn;
- int fram;
- int fcs;
-
- /* RFS2--Runt Packet Count (RNTPC) */
- int rfs_rntpc;
-
- /* RFS3--Receive Collision Count (RCVCC) */
- int rfs_rcvcc;
-
- /* MACE_IR */
- int jab;
- int babl;
- int cerr;
- int rcvcco;
- int rntpco;
- int mpco;
-
- /* MACE_MPC */
- int mpc;
-
- /* MACE_RNTPC */
- int rntpc;
-
- /* MACE_RCVCC */
- int rcvcc;
-} mace_statistics;
-
-typedef struct _mace_private {
- struct pcmcia_device *p_dev;
- mace_statistics mace_stats; /* MACE chip statistics counters */
-
- /* restore_multicast_list() state variables */
- int multicast_ladrf[MACE_LADRF_LEN]; /* Logical address filter */
- int multicast_num_addrs;
-
- char tx_free_frames; /* Number of free transmit frame buffers */
- char tx_irq_disabled; /* MACE TX interrupt disabled */
-
- spinlock_t bank_lock; /* Must be held if you step off bank 0 */
-} mace_private;
-
-/* ----------------------------------------------------------------------------
-Private Global Variables
----------------------------------------------------------------------------- */
-
-static const char *if_names[]={
- "Auto", "10baseT", "BNC",
-};
-
-/* ----------------------------------------------------------------------------
-Parameters
- These are the parameters that can be set during loading with
- 'insmod'.
----------------------------------------------------------------------------- */
-
-MODULE_DESCRIPTION("New Media PCMCIA ethernet driver");
-MODULE_LICENSE("GPL");
-
-#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
-
-/* 0=auto, 1=10baseT, 2 = 10base2, default=auto */
-INT_MODULE_PARM(if_port, 0);
-
-
-/* ----------------------------------------------------------------------------
-Function Prototypes
----------------------------------------------------------------------------- */
-
-static int nmclan_config(struct pcmcia_device *link);
-static void nmclan_release(struct pcmcia_device *link);
-
-static void nmclan_reset(struct net_device *dev);
-static int mace_config(struct net_device *dev, struct ifmap *map);
-static int mace_open(struct net_device *dev);
-static int mace_close(struct net_device *dev);
-static netdev_tx_t mace_start_xmit(struct sk_buff *skb,
- struct net_device *dev);
-static void mace_tx_timeout(struct net_device *dev, unsigned int txqueue);
-static irqreturn_t mace_interrupt(int irq, void *dev_id);
-static struct net_device_stats *mace_get_stats(struct net_device *dev);
-static int mace_rx(struct net_device *dev, unsigned char RxCnt);
-static void restore_multicast_list(struct net_device *dev);
-static void set_multicast_list(struct net_device *dev);
-static const struct ethtool_ops netdev_ethtool_ops;
-
-
-static void nmclan_detach(struct pcmcia_device *p_dev);
-
-static const struct net_device_ops mace_netdev_ops = {
- .ndo_open = mace_open,
- .ndo_stop = mace_close,
- .ndo_start_xmit = mace_start_xmit,
- .ndo_tx_timeout = mace_tx_timeout,
- .ndo_set_config = mace_config,
- .ndo_get_stats = mace_get_stats,
- .ndo_set_rx_mode = set_multicast_list,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-static int nmclan_probe(struct pcmcia_device *link)
-{
- mace_private *lp;
- struct net_device *dev;
-
- dev_dbg(&link->dev, "nmclan_attach()\n");
-
- /* Create new ethernet device */
- dev = alloc_etherdev(sizeof(mace_private));
- if (!dev)
- return -ENOMEM;
- lp = netdev_priv(dev);
- lp->p_dev = link;
- link->priv = dev;
-
- spin_lock_init(&lp->bank_lock);
- link->resource[0]->end = 32;
- link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
- link->config_flags |= CONF_ENABLE_IRQ;
- link->config_index = 1;
- link->config_regs = PRESENT_OPTION;
-
- lp->tx_free_frames=AM2150_MAX_TX_FRAMES;
-
- dev->netdev_ops = &mace_netdev_ops;
- dev->ethtool_ops = &netdev_ethtool_ops;
- dev->watchdog_timeo = TX_TIMEOUT;
-
- return nmclan_config(link);
-} /* nmclan_attach */
-
-static void nmclan_detach(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
-
- dev_dbg(&link->dev, "nmclan_detach\n");
-
- unregister_netdev(dev);
-
- nmclan_release(link);
-
- free_netdev(dev);
-} /* nmclan_detach */
-
-/* ----------------------------------------------------------------------------
-mace_read
- Reads a MACE register. This is bank independent; however, the
- caller must ensure that this call is not interruptable. We are
- assuming that during normal operation, the MACE is always in
- bank 0.
----------------------------------------------------------------------------- */
-static int mace_read(mace_private *lp, unsigned int ioaddr, int reg)
-{
- int data = 0xFF;
- unsigned long flags;
-
- switch (reg >> 4) {
- case 0: /* register 0-15 */
- data = inb(ioaddr + AM2150_MACE_BASE + reg);
- break;
- case 1: /* register 16-31 */
- spin_lock_irqsave(&lp->bank_lock, flags);
- MACEBANK(1);
- data = inb(ioaddr + AM2150_MACE_BASE + (reg & 0x0F));
- MACEBANK(0);
- spin_unlock_irqrestore(&lp->bank_lock, flags);
- break;
- }
- return data & 0xFF;
-} /* mace_read */
-
-/* ----------------------------------------------------------------------------
-mace_write
- Writes to a MACE register. This is bank independent; however,
- the caller must ensure that this call is not interruptable. We
- are assuming that during normal operation, the MACE is always in
- bank 0.
----------------------------------------------------------------------------- */
-static void mace_write(mace_private *lp, unsigned int ioaddr, int reg,
- int data)
-{
- unsigned long flags;
-
- switch (reg >> 4) {
- case 0: /* register 0-15 */
- outb(data & 0xFF, ioaddr + AM2150_MACE_BASE + reg);
- break;
- case 1: /* register 16-31 */
- spin_lock_irqsave(&lp->bank_lock, flags);
- MACEBANK(1);
- outb(data & 0xFF, ioaddr + AM2150_MACE_BASE + (reg & 0x0F));
- MACEBANK(0);
- spin_unlock_irqrestore(&lp->bank_lock, flags);
- break;
- }
-} /* mace_write */
-
-/* ----------------------------------------------------------------------------
-mace_init
- Resets the MACE chip.
----------------------------------------------------------------------------- */
-static int mace_init(mace_private *lp, unsigned int ioaddr,
- const char *enet_addr)
-{
- int i;
- int ct = 0;
-
- /* MACE Software reset */
- mace_write(lp, ioaddr, MACE_BIUCC, 1);
- while (mace_read(lp, ioaddr, MACE_BIUCC) & 0x01) {
- /* Wait for reset bit to be cleared automatically after <= 200ns */;
- if(++ct > 500)
- {
- pr_err("reset failed, card removed?\n");
- return -1;
- }
- udelay(1);
- }
- mace_write(lp, ioaddr, MACE_BIUCC, 0);
-
- /* The Am2150 requires that the MACE FIFOs operate in burst mode. */
- mace_write(lp, ioaddr, MACE_FIFOCC, 0x0F);
-
- mace_write(lp,ioaddr, MACE_RCVFC, 0); /* Disable Auto Strip Receive */
- mace_write(lp, ioaddr, MACE_IMR, 0xFF); /* Disable all interrupts until _open */
-
- /*
- * Bit 2-1 PORTSEL[1-0] Port Select.
- * 00 AUI/10Base-2
- * 01 10Base-T
- * 10 DAI Port (reserved in Am2150)
- * 11 GPSI
- * For this card, only the first two are valid.
- * So, PLSCC should be set to
- * 0x00 for 10Base-2
- * 0x02 for 10Base-T
- * Or just set ASEL in PHYCC below!
- */
- switch (if_port) {
- case 1:
- mace_write(lp, ioaddr, MACE_PLSCC, 0x02);
- break;
- case 2:
- mace_write(lp, ioaddr, MACE_PLSCC, 0x00);
- break;
- default:
- mace_write(lp, ioaddr, MACE_PHYCC, /* ASEL */ 4);
- /* ASEL Auto Select. When set, the PORTSEL[1-0] bits are overridden,
- and the MACE device will automatically select the operating media
- interface port. */
- break;
- }
-
- mace_write(lp, ioaddr, MACE_IAC, MACE_IAC_ADDRCHG | MACE_IAC_PHYADDR);
- /* Poll ADDRCHG bit */
- ct = 0;
- while (mace_read(lp, ioaddr, MACE_IAC) & MACE_IAC_ADDRCHG)
- {
- if(++ ct > 500)
- {
- pr_err("ADDRCHG timeout, card removed?\n");
- return -1;
- }
- }
- /* Set PADR register */
- for (i = 0; i < ETH_ALEN; i++)
- mace_write(lp, ioaddr, MACE_PADR, enet_addr[i]);
-
- /* MAC Configuration Control Register should be written last */
- /* Let set_multicast_list set this. */
- /* mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV); */
- mace_write(lp, ioaddr, MACE_MACCC, 0x00);
- return 0;
-} /* mace_init */
-
-static int nmclan_config(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- mace_private *lp = netdev_priv(dev);
- u8 *buf;
- size_t len;
- int i, ret;
- unsigned int ioaddr;
-
- dev_dbg(&link->dev, "nmclan_config\n");
-
- link->io_lines = 5;
- ret = pcmcia_request_io(link);
- if (ret)
- goto failed;
- ret = pcmcia_request_irq(link, mace_interrupt);
- if (ret)
- goto failed;
- ret = pcmcia_enable_device(link);
- if (ret)
- goto failed;
-
- dev->irq = link->irq;
- dev->base_addr = link->resource[0]->start;
-
- ioaddr = dev->base_addr;
-
- /* Read the ethernet address from the CIS. */
- len = pcmcia_get_tuple(link, 0x80, &buf);
- if (!buf || len < ETH_ALEN) {
- kfree(buf);
- goto failed;
- }
- eth_hw_addr_set(dev, buf);
- kfree(buf);
-
- /* Verify configuration by reading the MACE ID. */
- {
- char sig[2];
-
- sig[0] = mace_read(lp, ioaddr, MACE_CHIPIDL);
- sig[1] = mace_read(lp, ioaddr, MACE_CHIPIDH);
- if ((sig[0] == 0x40) && ((sig[1] & 0x0F) == 0x09)) {
- dev_dbg(&link->dev, "nmclan_cs configured: mace id=%x %x\n",
- sig[0], sig[1]);
- } else {
- pr_notice("mace id not found: %x %x should be 0x40 0x?9\n",
- sig[0], sig[1]);
- goto failed;
- }
- }
-
- if(mace_init(lp, ioaddr, dev->dev_addr) == -1)
- goto failed;
-
- /* The if_port symbol can be set when the module is loaded */
- if (if_port <= 2)
- dev->if_port = if_port;
- else
- pr_notice("invalid if_port requested\n");
-
- SET_NETDEV_DEV(dev, &link->dev);
-
- i = register_netdev(dev);
- if (i != 0) {
- pr_notice("register_netdev() failed\n");
- goto failed;
- }
-
- netdev_info(dev, "nmclan: port %#3lx, irq %d, %s port, hw_addr %pM\n",
- dev->base_addr, dev->irq, if_names[dev->if_port], dev->dev_addr);
- return 0;
-
-failed:
- nmclan_release(link);
- return -ENODEV;
-} /* nmclan_config */
-
-static void nmclan_release(struct pcmcia_device *link)
-{
- dev_dbg(&link->dev, "nmclan_release\n");
- pcmcia_disable_device(link);
-}
-
-static int nmclan_suspend(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
-
- if (link->open)
- netif_device_detach(dev);
-
- return 0;
-}
-
-static int nmclan_resume(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
-
- if (link->open) {
- nmclan_reset(dev);
- netif_device_attach(dev);
- }
-
- return 0;
-}
-
-
-/* ----------------------------------------------------------------------------
-nmclan_reset
- Reset and restore all of the Xilinx and MACE registers.
----------------------------------------------------------------------------- */
-static void nmclan_reset(struct net_device *dev)
-{
- mace_private *lp = netdev_priv(dev);
-
-#if RESET_XILINX
- struct pcmcia_device *link = &lp->link;
- u8 OrigCorValue;
-
- /* Save original COR value */
- pcmcia_read_config_byte(link, CISREG_COR, &OrigCorValue);
-
- /* Reset Xilinx */
- dev_dbg(&link->dev, "nmclan_reset: OrigCorValue=0x%x, resetting...\n",
- OrigCorValue);
- pcmcia_write_config_byte(link, CISREG_COR, COR_SOFT_RESET);
- /* Need to wait for 20 ms for PCMCIA to finish reset. */
-
- /* Restore original COR configuration index */
- pcmcia_write_config_byte(link, CISREG_COR,
- (COR_LEVEL_REQ | (OrigCorValue & COR_CONFIG_MASK)));
- /* Xilinx is now completely reset along with the MACE chip. */
- lp->tx_free_frames=AM2150_MAX_TX_FRAMES;
-
-#endif /* #if RESET_XILINX */
-
- /* Xilinx is now completely reset along with the MACE chip. */
- lp->tx_free_frames=AM2150_MAX_TX_FRAMES;
-
- /* Reinitialize the MACE chip for operation. */
- mace_init(lp, dev->base_addr, dev->dev_addr);
- mace_write(lp, dev->base_addr, MACE_IMR, MACE_IMR_DEFAULT);
-
- /* Restore the multicast list and enable TX and RX. */
- restore_multicast_list(dev);
-} /* nmclan_reset */
-
-/* ----------------------------------------------------------------------------
-mace_config
- [Someone tell me what this is supposed to do? Is if_port a defined
- standard? If so, there should be defines to indicate 1=10Base-T,
- 2=10Base-2, etc. including limited automatic detection.]
----------------------------------------------------------------------------- */
-static int mace_config(struct net_device *dev, struct ifmap *map)
-{
- if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
- if (map->port <= 2) {
- WRITE_ONCE(dev->if_port, map->port);
- netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
- } else
- return -EINVAL;
- }
- return 0;
-} /* mace_config */
-
-/* ----------------------------------------------------------------------------
-mace_open
- Open device driver.
----------------------------------------------------------------------------- */
-static int mace_open(struct net_device *dev)
-{
- unsigned int ioaddr = dev->base_addr;
- mace_private *lp = netdev_priv(dev);
- struct pcmcia_device *link = lp->p_dev;
-
- if (!pcmcia_dev_present(link))
- return -ENODEV;
-
- link->open++;
-
- MACEBANK(0);
-
- netif_start_queue(dev);
- nmclan_reset(dev);
-
- return 0; /* Always succeed */
-} /* mace_open */
-
-/* ----------------------------------------------------------------------------
-mace_close
- Closes device driver.
----------------------------------------------------------------------------- */
-static int mace_close(struct net_device *dev)
-{
- unsigned int ioaddr = dev->base_addr;
- mace_private *lp = netdev_priv(dev);
- struct pcmcia_device *link = lp->p_dev;
-
- dev_dbg(&link->dev, "%s: shutting down ethercard.\n", dev->name);
-
- /* Mask off all interrupts from the MACE chip. */
- outb(0xFF, ioaddr + AM2150_MACE_BASE + MACE_IMR);
-
- link->open--;
- netif_stop_queue(dev);
-
- return 0;
-} /* mace_close */
-
-static void netdev_get_drvinfo(struct net_device *dev,
- struct ethtool_drvinfo *info)
-{
- strscpy(info->driver, DRV_NAME, sizeof(info->driver));
- snprintf(info->bus_info, sizeof(info->bus_info),
- "PCMCIA 0x%lx", dev->base_addr);
-}
-
-static const struct ethtool_ops netdev_ethtool_ops = {
- .get_drvinfo = netdev_get_drvinfo,
-};
-
-/* ----------------------------------------------------------------------------
-mace_start_xmit
- This routine begins the packet transmit function. When completed,
- it will generate a transmit interrupt.
-
- According to /usr/src/linux/net/inet/dev.c, if _start_xmit
- returns 0, the "packet is now solely the responsibility of the
- driver." If _start_xmit returns non-zero, the "transmission
- failed, put skb back into a list."
----------------------------------------------------------------------------- */
-
-static void mace_tx_timeout(struct net_device *dev, unsigned int txqueue)
-{
- mace_private *lp = netdev_priv(dev);
- struct pcmcia_device *link = lp->p_dev;
-
- netdev_notice(dev, "transmit timed out -- ");
-#if RESET_ON_TIMEOUT
- pr_cont("resetting card\n");
- pcmcia_reset_card(link->socket);
-#else /* #if RESET_ON_TIMEOUT */
- pr_cont("NOT resetting card\n");
-#endif /* #if RESET_ON_TIMEOUT */
- netif_trans_update(dev); /* prevent tx timeout */
- netif_wake_queue(dev);
-}
-
-static netdev_tx_t mace_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- mace_private *lp = netdev_priv(dev);
- unsigned int ioaddr = dev->base_addr;
-
- netif_stop_queue(dev);
-
- pr_debug("%s: mace_start_xmit(length = %ld) called.\n",
- dev->name, (long)skb->len);
-
-#if (!TX_INTERRUPTABLE)
- /* Disable MACE TX interrupts. */
- outb(MACE_IMR_DEFAULT | MACE_IR_XMTINT,
- ioaddr + AM2150_MACE_BASE + MACE_IMR);
- lp->tx_irq_disabled=1;
-#endif /* #if (!TX_INTERRUPTABLE) */
-
- {
- /* This block must not be interrupted by another transmit request!
- mace_tx_timeout will take care of timer-based retransmissions from
- the upper layers. The interrupt handler is guaranteed never to
- service a transmit interrupt while we are in here.
- */
-
- dev->stats.tx_bytes += skb->len;
- lp->tx_free_frames--;
-
- /* WARNING: Write the _exact_ number of bytes written in the header! */
- /* Put out the word header [must be an outw()] . . . */
- outw(skb->len, ioaddr + AM2150_XMT);
- /* . . . and the packet [may be any combination of outw() and outb()] */
- outsw(ioaddr + AM2150_XMT, skb->data, skb->len >> 1);
- if (skb->len & 1) {
- /* Odd byte transfer */
- outb(skb->data[skb->len-1], ioaddr + AM2150_XMT);
- }
-
-#if MULTI_TX
- if (lp->tx_free_frames > 0)
- netif_start_queue(dev);
-#endif /* #if MULTI_TX */
- }
-
-#if (!TX_INTERRUPTABLE)
- /* Re-enable MACE TX interrupts. */
- lp->tx_irq_disabled=0;
- outb(MACE_IMR_DEFAULT, ioaddr + AM2150_MACE_BASE + MACE_IMR);
-#endif /* #if (!TX_INTERRUPTABLE) */
-
- dev_kfree_skb(skb);
-
- return NETDEV_TX_OK;
-} /* mace_start_xmit */
-
-/* ----------------------------------------------------------------------------
-mace_interrupt
- The interrupt handler.
----------------------------------------------------------------------------- */
-static irqreturn_t mace_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = (struct net_device *) dev_id;
- mace_private *lp = netdev_priv(dev);
- unsigned int ioaddr;
- int status;
- int IntrCnt = MACE_MAX_IR_ITERATIONS;
-
- if (!dev) {
- pr_debug("mace_interrupt(): irq 0x%X for unknown device.\n",
- irq);
- return IRQ_NONE;
- }
-
- ioaddr = dev->base_addr;
-
- if (lp->tx_irq_disabled) {
- const char *msg;
- if (lp->tx_irq_disabled)
- msg = "Interrupt with tx_irq_disabled";
- else
- msg = "Re-entering the interrupt handler";
- netdev_notice(dev, "%s [isr=%02X, imr=%02X]\n",
- msg,
- inb(ioaddr + AM2150_MACE_BASE + MACE_IR),
- inb(ioaddr + AM2150_MACE_BASE + MACE_IMR));
- /* WARNING: MACE_IR has been read! */
- return IRQ_NONE;
- }
-
- if (!netif_device_present(dev)) {
- netdev_dbg(dev, "interrupt from dead card\n");
- return IRQ_NONE;
- }
-
- do {
- /* WARNING: MACE_IR is a READ/CLEAR port! */
- status = inb(ioaddr + AM2150_MACE_BASE + MACE_IR);
- if (!(status & ~MACE_IMR_DEFAULT) && IntrCnt == MACE_MAX_IR_ITERATIONS)
- return IRQ_NONE;
-
- pr_debug("mace_interrupt: irq 0x%X status 0x%X.\n", irq, status);
-
- if (status & MACE_IR_RCVINT) {
- mace_rx(dev, MACE_MAX_RX_ITERATIONS);
- }
-
- if (status & MACE_IR_XMTINT) {
- unsigned char fifofc;
- unsigned char xmtrc;
- unsigned char xmtfs;
-
- fifofc = inb(ioaddr + AM2150_MACE_BASE + MACE_FIFOFC);
- if ((fifofc & MACE_FIFOFC_XMTFC)==0) {
- dev->stats.tx_errors++;
- outb(0xFF, ioaddr + AM2150_XMT_SKIP);
- }
-
- /* Transmit Retry Count (XMTRC, reg 4) */
- xmtrc = inb(ioaddr + AM2150_MACE_BASE + MACE_XMTRC);
- if (xmtrc & MACE_XMTRC_EXDEF) lp->mace_stats.exdef++;
- lp->mace_stats.xmtrc += (xmtrc & MACE_XMTRC_XMTRC);
-
- if (
- (xmtfs = inb(ioaddr + AM2150_MACE_BASE + MACE_XMTFS)) &
- MACE_XMTFS_XMTSV /* Transmit Status Valid */
- ) {
- lp->mace_stats.xmtsv++;
-
- if (xmtfs & ~MACE_XMTFS_XMTSV) {
- if (xmtfs & MACE_XMTFS_UFLO) {
- /* Underflow. Indicates that the Transmit FIFO emptied before
- the end of frame was reached. */
- lp->mace_stats.uflo++;
- }
- if (xmtfs & MACE_XMTFS_LCOL) {
- /* Late Collision */
- lp->mace_stats.lcol++;
- }
- if (xmtfs & MACE_XMTFS_MORE) {
- /* MORE than one retry was needed */
- lp->mace_stats.more++;
- }
- if (xmtfs & MACE_XMTFS_ONE) {
- /* Exactly ONE retry occurred */
- lp->mace_stats.one++;
- }
- if (xmtfs & MACE_XMTFS_DEFER) {
- /* Transmission was defered */
- lp->mace_stats.defer++;
- }
- if (xmtfs & MACE_XMTFS_LCAR) {
- /* Loss of carrier */
- lp->mace_stats.lcar++;
- }
- if (xmtfs & MACE_XMTFS_RTRY) {
- /* Retry error: transmit aborted after 16 attempts */
- lp->mace_stats.rtry++;
- }
- } /* if (xmtfs & ~MACE_XMTFS_XMTSV) */
-
- } /* if (xmtfs & MACE_XMTFS_XMTSV) */
-
- dev->stats.tx_packets++;
- lp->tx_free_frames++;
- netif_wake_queue(dev);
- } /* if (status & MACE_IR_XMTINT) */
-
- if (status & ~MACE_IMR_DEFAULT & ~MACE_IR_RCVINT & ~MACE_IR_XMTINT) {
- if (status & MACE_IR_JAB) {
- /* Jabber Error. Excessive transmit duration (20-150ms). */
- lp->mace_stats.jab++;
- }
- if (status & MACE_IR_BABL) {
- /* Babble Error. >1518 bytes transmitted. */
- lp->mace_stats.babl++;
- }
- if (status & MACE_IR_CERR) {
- /* Collision Error. CERR indicates the absence of the
- Signal Quality Error Test message after a packet
- transmission. */
- lp->mace_stats.cerr++;
- }
- if (status & MACE_IR_RCVCCO) {
- /* Receive Collision Count Overflow; */
- lp->mace_stats.rcvcco++;
- }
- if (status & MACE_IR_RNTPCO) {
- /* Runt Packet Count Overflow */
- lp->mace_stats.rntpco++;
- }
- if (status & MACE_IR_MPCO) {
- /* Missed Packet Count Overflow */
- lp->mace_stats.mpco++;
- }
- } /* if (status & ~MACE_IMR_DEFAULT & ~MACE_IR_RCVINT & ~MACE_IR_XMTINT) */
-
- } while ((status & ~MACE_IMR_DEFAULT) && (--IntrCnt));
-
- return IRQ_HANDLED;
-} /* mace_interrupt */
-
-/* ----------------------------------------------------------------------------
-mace_rx
- Receives packets.
----------------------------------------------------------------------------- */
-static int mace_rx(struct net_device *dev, unsigned char RxCnt)
-{
- mace_private *lp = netdev_priv(dev);
- unsigned int ioaddr = dev->base_addr;
- unsigned char rx_framecnt;
- unsigned short rx_status;
-
- while (
- ((rx_framecnt = inb(ioaddr + AM2150_RCV_FRAME_COUNT)) > 0) &&
- (rx_framecnt <= 12) && /* rx_framecnt==0xFF if card is extracted. */
- (RxCnt--)
- ) {
- rx_status = inw(ioaddr + AM2150_RCV);
-
- pr_debug("%s: in mace_rx(), framecnt 0x%X, rx_status"
- " 0x%X.\n", dev->name, rx_framecnt, rx_status);
-
- if (rx_status & MACE_RCVFS_RCVSTS) { /* Error, update stats. */
- dev->stats.rx_errors++;
- if (rx_status & MACE_RCVFS_OFLO) {
- lp->mace_stats.oflo++;
- }
- if (rx_status & MACE_RCVFS_CLSN) {
- lp->mace_stats.clsn++;
- }
- if (rx_status & MACE_RCVFS_FRAM) {
- lp->mace_stats.fram++;
- }
- if (rx_status & MACE_RCVFS_FCS) {
- lp->mace_stats.fcs++;
- }
- } else {
- short pkt_len = (rx_status & ~MACE_RCVFS_RCVSTS) - 4;
- /* Auto Strip is off, always subtract 4 */
- struct sk_buff *skb;
-
- lp->mace_stats.rfs_rntpc += inb(ioaddr + AM2150_RCV);
- /* runt packet count */
- lp->mace_stats.rfs_rcvcc += inb(ioaddr + AM2150_RCV);
- /* rcv collision count */
-
- pr_debug(" receiving packet size 0x%X rx_status"
- " 0x%X.\n", pkt_len, rx_status);
-
- skb = netdev_alloc_skb(dev, pkt_len + 2);
-
- if (skb) {
- skb_reserve(skb, 2);
- insw(ioaddr + AM2150_RCV, skb_put(skb, pkt_len), pkt_len>>1);
- if (pkt_len & 1)
- *(skb_tail_pointer(skb) - 1) = inb(ioaddr + AM2150_RCV);
- skb->protocol = eth_type_trans(skb, dev);
-
- netif_rx(skb); /* Send the packet to the upper (protocol) layers. */
-
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += pkt_len;
- outb(0xFF, ioaddr + AM2150_RCV_NEXT); /* skip to next frame */
- continue;
- } else {
- pr_debug("%s: couldn't allocate a sk_buff of size"
- " %d.\n", dev->name, pkt_len);
- dev->stats.rx_dropped++;
- }
- }
- outb(0xFF, ioaddr + AM2150_RCV_NEXT); /* skip to next frame */
- } /* while */
-
- return 0;
-} /* mace_rx */
-
-/* ----------------------------------------------------------------------------
-pr_linux_stats
----------------------------------------------------------------------------- */
-static void pr_linux_stats(struct net_device_stats *pstats)
-{
- pr_debug("pr_linux_stats\n");
- pr_debug(" rx_packets=%-7ld tx_packets=%ld\n",
- (long)pstats->rx_packets, (long)pstats->tx_packets);
- pr_debug(" rx_errors=%-7ld tx_errors=%ld\n",
- (long)pstats->rx_errors, (long)pstats->tx_errors);
- pr_debug(" rx_dropped=%-7ld tx_dropped=%ld\n",
- (long)pstats->rx_dropped, (long)pstats->tx_dropped);
- pr_debug(" multicast=%-7ld collisions=%ld\n",
- (long)pstats->multicast, (long)pstats->collisions);
-
- pr_debug(" rx_length_errors=%-7ld rx_over_errors=%ld\n",
- (long)pstats->rx_length_errors, (long)pstats->rx_over_errors);
- pr_debug(" rx_crc_errors=%-7ld rx_frame_errors=%ld\n",
- (long)pstats->rx_crc_errors, (long)pstats->rx_frame_errors);
- pr_debug(" rx_fifo_errors=%-7ld rx_missed_errors=%ld\n",
- (long)pstats->rx_fifo_errors, (long)pstats->rx_missed_errors);
-
- pr_debug(" tx_aborted_errors=%-7ld tx_carrier_errors=%ld\n",
- (long)pstats->tx_aborted_errors, (long)pstats->tx_carrier_errors);
- pr_debug(" tx_fifo_errors=%-7ld tx_heartbeat_errors=%ld\n",
- (long)pstats->tx_fifo_errors, (long)pstats->tx_heartbeat_errors);
- pr_debug(" tx_window_errors=%ld\n",
- (long)pstats->tx_window_errors);
-} /* pr_linux_stats */
-
-/* ----------------------------------------------------------------------------
-pr_mace_stats
----------------------------------------------------------------------------- */
-static void pr_mace_stats(mace_statistics *pstats)
-{
- pr_debug("pr_mace_stats\n");
-
- pr_debug(" xmtsv=%-7d uflo=%d\n",
- pstats->xmtsv, pstats->uflo);
- pr_debug(" lcol=%-7d more=%d\n",
- pstats->lcol, pstats->more);
- pr_debug(" one=%-7d defer=%d\n",
- pstats->one, pstats->defer);
- pr_debug(" lcar=%-7d rtry=%d\n",
- pstats->lcar, pstats->rtry);
-
- /* MACE_XMTRC */
- pr_debug(" exdef=%-7d xmtrc=%d\n",
- pstats->exdef, pstats->xmtrc);
-
- /* RFS1--Receive Status (RCVSTS) */
- pr_debug(" oflo=%-7d clsn=%d\n",
- pstats->oflo, pstats->clsn);
- pr_debug(" fram=%-7d fcs=%d\n",
- pstats->fram, pstats->fcs);
-
- /* RFS2--Runt Packet Count (RNTPC) */
- /* RFS3--Receive Collision Count (RCVCC) */
- pr_debug(" rfs_rntpc=%-7d rfs_rcvcc=%d\n",
- pstats->rfs_rntpc, pstats->rfs_rcvcc);
-
- /* MACE_IR */
- pr_debug(" jab=%-7d babl=%d\n",
- pstats->jab, pstats->babl);
- pr_debug(" cerr=%-7d rcvcco=%d\n",
- pstats->cerr, pstats->rcvcco);
- pr_debug(" rntpco=%-7d mpco=%d\n",
- pstats->rntpco, pstats->mpco);
-
- /* MACE_MPC */
- pr_debug(" mpc=%d\n", pstats->mpc);
-
- /* MACE_RNTPC */
- pr_debug(" rntpc=%d\n", pstats->rntpc);
-
- /* MACE_RCVCC */
- pr_debug(" rcvcc=%d\n", pstats->rcvcc);
-
-} /* pr_mace_stats */
-
-/* ----------------------------------------------------------------------------
-update_stats
- Update statistics. We change to register window 1, so this
- should be run single-threaded if the device is active. This is
- expected to be a rare operation, and it's simpler for the rest
- of the driver to assume that window 0 is always valid rather
- than use a special window-state variable.
-
- oflo & uflo should _never_ occur since it would mean the Xilinx
- was not able to transfer data between the MACE FIFO and the
- card's SRAM fast enough. If this happens, something is
- seriously wrong with the hardware.
----------------------------------------------------------------------------- */
-static void update_stats(unsigned int ioaddr, struct net_device *dev)
-{
- mace_private *lp = netdev_priv(dev);
-
- lp->mace_stats.rcvcc += mace_read(lp, ioaddr, MACE_RCVCC);
- lp->mace_stats.rntpc += mace_read(lp, ioaddr, MACE_RNTPC);
- lp->mace_stats.mpc += mace_read(lp, ioaddr, MACE_MPC);
- /* At this point, mace_stats is fully updated for this call.
- We may now update the netdev stats. */
-
- /* The MACE has no equivalent for netdev stats field which are commented
- out. */
-
- /* dev->stats.multicast; */
- dev->stats.collisions =
- lp->mace_stats.rcvcco * 256 + lp->mace_stats.rcvcc;
- /* Collision: The MACE may retry sending a packet 15 times
- before giving up. The retry count is in XMTRC.
- Does each retry constitute a collision?
- If so, why doesn't the RCVCC record these collisions? */
-
- /* detailed rx_errors: */
- dev->stats.rx_length_errors =
- lp->mace_stats.rntpco * 256 + lp->mace_stats.rntpc;
- /* dev->stats.rx_over_errors */
- dev->stats.rx_crc_errors = lp->mace_stats.fcs;
- dev->stats.rx_frame_errors = lp->mace_stats.fram;
- dev->stats.rx_fifo_errors = lp->mace_stats.oflo;
- dev->stats.rx_missed_errors =
- lp->mace_stats.mpco * 256 + lp->mace_stats.mpc;
-
- /* detailed tx_errors */
- dev->stats.tx_aborted_errors = lp->mace_stats.rtry;
- dev->stats.tx_carrier_errors = lp->mace_stats.lcar;
- /* LCAR usually results from bad cabling. */
- dev->stats.tx_fifo_errors = lp->mace_stats.uflo;
- dev->stats.tx_heartbeat_errors = lp->mace_stats.cerr;
- /* dev->stats.tx_window_errors; */
-} /* update_stats */
-
-/* ----------------------------------------------------------------------------
-mace_get_stats
- Gathers ethernet statistics from the MACE chip.
----------------------------------------------------------------------------- */
-static struct net_device_stats *mace_get_stats(struct net_device *dev)
-{
- mace_private *lp = netdev_priv(dev);
-
- update_stats(dev->base_addr, dev);
-
- pr_debug("%s: updating the statistics.\n", dev->name);
- pr_linux_stats(&dev->stats);
- pr_mace_stats(&lp->mace_stats);
-
- return &dev->stats;
-} /* net_device_stats */
-
-/* ----------------------------------------------------------------------------
-updateCRC
- Modified from Am79C90 data sheet.
----------------------------------------------------------------------------- */
-
-#ifdef BROKEN_MULTICAST
-
-static void updateCRC(int *CRC, int bit)
-{
- static const int poly[]={
- 1,1,1,0, 1,1,0,1,
- 1,0,1,1, 1,0,0,0,
- 1,0,0,0, 0,0,1,1,
- 0,0,1,0, 0,0,0,0
- }; /* CRC polynomial. poly[n] = coefficient of the x**n term of the
- CRC generator polynomial. */
-
- int j;
-
- /* shift CRC and control bit (CRC[32]) */
- for (j = 32; j > 0; j--)
- CRC[j] = CRC[j-1];
- CRC[0] = 0;
-
- /* If bit XOR(control bit) = 1, set CRC = CRC XOR polynomial. */
- if (bit ^ CRC[32])
- for (j = 0; j < 32; j++)
- CRC[j] ^= poly[j];
-} /* updateCRC */
-
-/* ----------------------------------------------------------------------------
-BuildLAF
- Build logical address filter.
- Modified from Am79C90 data sheet.
-
-Input
- ladrf: logical address filter (contents initialized to 0)
- adr: ethernet address
----------------------------------------------------------------------------- */
-static void BuildLAF(int *ladrf, int *adr)
-{
- int CRC[33]={1}; /* CRC register, 1 word/bit + extra control bit */
-
- int i, byte; /* temporary array indices */
- int hashcode; /* the output object */
-
- CRC[32]=0;
-
- for (byte = 0; byte < 6; byte++)
- for (i = 0; i < 8; i++)
- updateCRC(CRC, (adr[byte] >> i) & 1);
-
- hashcode = 0;
- for (i = 0; i < 6; i++)
- hashcode = (hashcode << 1) + CRC[i];
-
- byte = hashcode >> 3;
- ladrf[byte] |= (1 << (hashcode & 7));
-
-#ifdef PCMCIA_DEBUG
- if (0)
- printk(KERN_DEBUG " adr =%pM\n", adr);
- printk(KERN_DEBUG " hashcode = %d(decimal), ladrf[0:63] =", hashcode);
- for (i = 0; i < 8; i++)
- pr_cont(" %02X", ladrf[i]);
- pr_cont("\n");
-#endif
-} /* BuildLAF */
-
-/* ----------------------------------------------------------------------------
-restore_multicast_list
- Restores the multicast filter for MACE chip to the last
- set_multicast_list() call.
-
-Input
- multicast_num_addrs
- multicast_ladrf[]
----------------------------------------------------------------------------- */
-static void restore_multicast_list(struct net_device *dev)
-{
- mace_private *lp = netdev_priv(dev);
- int num_addrs = lp->multicast_num_addrs;
- int *ladrf = lp->multicast_ladrf;
- unsigned int ioaddr = dev->base_addr;
- int i;
-
- pr_debug("%s: restoring Rx mode to %d addresses.\n",
- dev->name, num_addrs);
-
- if (num_addrs > 0) {
-
- pr_debug("Attempt to restore multicast list detected.\n");
-
- mace_write(lp, ioaddr, MACE_IAC, MACE_IAC_ADDRCHG | MACE_IAC_LOGADDR);
- /* Poll ADDRCHG bit */
- while (mace_read(lp, ioaddr, MACE_IAC) & MACE_IAC_ADDRCHG)
- ;
- /* Set LADRF register */
- for (i = 0; i < MACE_LADRF_LEN; i++)
- mace_write(lp, ioaddr, MACE_LADRF, ladrf[i]);
-
- mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_RCVFCSE | MACE_UTR_LOOP_EXTERNAL);
- mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV);
-
- } else if (num_addrs < 0) {
-
- /* Promiscuous mode: receive all packets */
- mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL);
- mace_write(lp, ioaddr, MACE_MACCC,
- MACE_MACCC_PROM | MACE_MACCC_ENXMT | MACE_MACCC_ENRCV
- );
-
- } else {
-
- /* Normal mode */
- mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL);
- mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV);
-
- }
-} /* restore_multicast_list */
-
-/* ----------------------------------------------------------------------------
-set_multicast_list
- Set or clear the multicast filter for this adaptor.
-
-Input
- num_addrs == -1 Promiscuous mode, receive all packets
- num_addrs == 0 Normal mode, clear multicast list
- num_addrs > 0 Multicast mode, receive normal and MC packets, and do
- best-effort filtering.
-Output
- multicast_num_addrs
- multicast_ladrf[]
----------------------------------------------------------------------------- */
-
-static void set_multicast_list(struct net_device *dev)
-{
- mace_private *lp = netdev_priv(dev);
- int adr[ETH_ALEN] = {0}; /* Ethernet address */
- struct netdev_hw_addr *ha;
-
-#ifdef PCMCIA_DEBUG
- {
- static int old;
- if (netdev_mc_count(dev) != old) {
- old = netdev_mc_count(dev);
- pr_debug("%s: setting Rx mode to %d addresses.\n",
- dev->name, old);
- }
- }
-#endif
-
- /* Set multicast_num_addrs. */
- lp->multicast_num_addrs = netdev_mc_count(dev);
-
- /* Set multicast_ladrf. */
- if (num_addrs > 0) {
- /* Calculate multicast logical address filter */
- memset(lp->multicast_ladrf, 0, MACE_LADRF_LEN);
- netdev_for_each_mc_addr(ha, dev) {
- memcpy(adr, ha->addr, ETH_ALEN);
- BuildLAF(lp->multicast_ladrf, adr);
- }
- }
-
- restore_multicast_list(dev);
-
-} /* set_multicast_list */
-
-#endif /* BROKEN_MULTICAST */
-
-static void restore_multicast_list(struct net_device *dev)
-{
- unsigned int ioaddr = dev->base_addr;
- mace_private *lp = netdev_priv(dev);
-
- pr_debug("%s: restoring Rx mode to %d addresses.\n", dev->name,
- lp->multicast_num_addrs);
-
- if (dev->flags & IFF_PROMISC) {
- /* Promiscuous mode: receive all packets */
- mace_write(lp,ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL);
- mace_write(lp, ioaddr, MACE_MACCC,
- MACE_MACCC_PROM | MACE_MACCC_ENXMT | MACE_MACCC_ENRCV
- );
- } else {
- /* Normal mode */
- mace_write(lp, ioaddr, MACE_UTR, MACE_UTR_LOOP_EXTERNAL);
- mace_write(lp, ioaddr, MACE_MACCC, MACE_MACCC_ENXMT | MACE_MACCC_ENRCV);
- }
-} /* restore_multicast_list */
-
-static void set_multicast_list(struct net_device *dev)
-{
- mace_private *lp = netdev_priv(dev);
-
-#ifdef PCMCIA_DEBUG
- {
- static int old;
- if (netdev_mc_count(dev) != old) {
- old = netdev_mc_count(dev);
- pr_debug("%s: setting Rx mode to %d addresses.\n",
- dev->name, old);
- }
- }
-#endif
-
- lp->multicast_num_addrs = netdev_mc_count(dev);
- restore_multicast_list(dev);
-
-} /* set_multicast_list */
-
-static const struct pcmcia_device_id nmclan_ids[] = {
- PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Ethernet", 0x085a850b, 0x00b2e941),
- PCMCIA_DEVICE_PROD_ID12("Portable Add-ons", "Ethernet+", 0xebf1d60, 0xad673aaf),
- PCMCIA_DEVICE_NULL,
-};
-MODULE_DEVICE_TABLE(pcmcia, nmclan_ids);
-
-static struct pcmcia_driver nmclan_cs_driver = {
- .owner = THIS_MODULE,
- .name = "nmclan_cs",
- .probe = nmclan_probe,
- .remove = nmclan_detach,
- .id_table = nmclan_ids,
- .suspend = nmclan_suspend,
- .resume = nmclan_resume,
-};
-module_pcmcia_driver(nmclan_cs_driver);
projects / thirdparty / kernel / linux.git / commitdiff
