diff options
Diffstat (limited to 'drivers/net/ethernet/fujitsu/at1700.c')
| -rw-r--r-- | drivers/net/ethernet/fujitsu/at1700.c | 791 |
1 files changed, 0 insertions, 791 deletions
diff --git a/drivers/net/ethernet/fujitsu/at1700.c b/drivers/net/ethernet/fujitsu/at1700.c deleted file mode 100644 index 4b80dc4531ad..000000000000 --- a/drivers/net/ethernet/fujitsu/at1700.c +++ /dev/null @@ -1,791 +0,0 @@ -/* at1700.c: A network device driver for the Allied Telesis AT1700. - - Written 1993-98 by Donald Becker. - - Copyright 1993 United States Government as represented by the - Director, National Security Agency. - - This software may be used and distributed according to the terms - of the GNU General Public License, incorporated herein by reference. - - The author may be reached as becker@scyld.com, or C/O - Scyld Computing Corporation - 410 Severn Ave., Suite 210 - Annapolis MD 21403 - - This is a device driver for the Allied Telesis AT1700, and - Fujitsu FMV-181/182/181A/182A/183/184/183A/184A, which are - straight-forward Fujitsu MB86965 implementations. - - Modification for Fujitsu FMV-18X cards is done by Yutaka Tamiya - (tamy@flab.fujitsu.co.jp). - - Sources: - The Fujitsu MB86965 datasheet. - - After the initial version of this driver was written Gerry Sawkins of - ATI provided their EEPROM configuration code header file. - Thanks to NIIBE Yutaka <gniibe@mri.co.jp> for bug fixes. - - MCA bus (AT1720) support (now deleted) by Rene Schmit <rene@bss.lu> - - Bugs: - The MB86965 has a design flaw that makes all probes unreliable. Not - only is it difficult to detect, it also moves around in I/O space in - response to inb()s from other device probes! -*/ - -#include <linux/errno.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/fcntl.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/in.h> -#include <linux/skbuff.h> -#include <linux/string.h> -#include <linux/init.h> -#include <linux/crc32.h> -#include <linux/bitops.h> - -#include <asm/io.h> -#include <asm/dma.h> - -static char version[] __initdata = - "at1700.c:v1.16 9/11/06 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; - -#define DRV_NAME "at1700" - -/* Tunable parameters. */ - -/* When to switch from the 64-entry multicast filter to Rx-all-multicast. */ -#define MC_FILTERBREAK 64 - -/* These unusual address orders are used to verify the CONFIG register. */ - -static int fmv18x_probe_list[] __initdata = { - 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x300, 0x340, 0 -}; - -/* - * ISA - */ - -static unsigned at1700_probe_list[] __initdata = { - 0x260, 0x280, 0x2a0, 0x240, 0x340, 0x320, 0x380, 0x300, 0 -}; - -/* use 0 for production, 1 for verification, >2 for debug */ -#ifndef NET_DEBUG -#define NET_DEBUG 1 -#endif -static unsigned int net_debug = NET_DEBUG; - -typedef unsigned char uchar; - -/* Information that need to be kept for each board. */ -struct net_local { - spinlock_t lock; - unsigned char mc_filter[8]; - uint jumpered:1; /* Set iff the board has jumper config. */ - uint tx_started:1; /* Packets are on the Tx queue. */ - uint tx_queue_ready:1; /* Tx queue is ready to be sent. */ - uint rx_started:1; /* Packets are Rxing. */ - uchar tx_queue; /* Number of packet on the Tx queue. */ - ushort tx_queue_len; /* Current length of the Tx queue. */ -}; - - -/* Offsets from the base address. */ -#define STATUS 0 -#define TX_STATUS 0 -#define RX_STATUS 1 -#define TX_INTR 2 /* Bit-mapped interrupt enable registers. */ -#define RX_INTR 3 -#define TX_MODE 4 -#define RX_MODE 5 -#define CONFIG_0 6 /* Misc. configuration settings. */ -#define CONFIG_1 7 -/* Run-time register bank 2 definitions. */ -#define DATAPORT 8 /* Word-wide DMA or programmed-I/O dataport. */ -#define TX_START 10 -#define COL16CNTL 11 /* Control Reg for 16 collisions */ -#define MODE13 13 -#define RX_CTRL 14 -/* Configuration registers only on the '865A/B chips. */ -#define EEPROM_Ctrl 16 -#define EEPROM_Data 17 -#define CARDSTATUS 16 /* FMV-18x Card Status */ -#define CARDSTATUS1 17 /* FMV-18x Card Status */ -#define IOCONFIG 18 /* Either read the jumper, or move the I/O. */ -#define IOCONFIG1 19 -#define SAPROM 20 /* The station address PROM, if no EEPROM. */ -#define MODE24 24 -#define RESET 31 /* Write to reset some parts of the chip. */ -#define AT1700_IO_EXTENT 32 -#define PORT_OFFSET(o) (o) - - -#define TX_TIMEOUT (HZ/10) - - -/* Index to functions, as function prototypes. */ - -static int at1700_probe1(struct net_device *dev, int ioaddr); -static int read_eeprom(long ioaddr, int location); -static int net_open(struct net_device *dev); -static netdev_tx_t net_send_packet(struct sk_buff *skb, - struct net_device *dev); -static irqreturn_t net_interrupt(int irq, void *dev_id); -static void net_rx(struct net_device *dev); -static int net_close(struct net_device *dev); -static void set_rx_mode(struct net_device *dev); -static void net_tx_timeout (struct net_device *dev); - - -/* Check for a network adaptor of this type, and return '0' iff one exists. - If dev->base_addr == 0, probe all likely locations. - If dev->base_addr == 1, always return failure. - If dev->base_addr == 2, allocate space for the device and return success - (detachable devices only). - */ - -static int io = 0x260; - -static int irq; - -static void cleanup_card(struct net_device *dev) -{ - free_irq(dev->irq, NULL); - release_region(dev->base_addr, AT1700_IO_EXTENT); -} - -struct net_device * __init at1700_probe(int unit) -{ - struct net_device *dev = alloc_etherdev(sizeof(struct net_local)); - unsigned *port; - int err = 0; - - if (!dev) - return ERR_PTR(-ENODEV); - - if (unit >= 0) { - sprintf(dev->name, "eth%d", unit); - netdev_boot_setup_check(dev); - io = dev->base_addr; - irq = dev->irq; - } else { - dev->base_addr = io; - dev->irq = irq; - } - - if (io > 0x1ff) { /* Check a single specified location. */ - err = at1700_probe1(dev, io); - } else if (io != 0) { /* Don't probe at all. */ - err = -ENXIO; - } else { - for (port = at1700_probe_list; *port; port++) { - if (at1700_probe1(dev, *port) == 0) - break; - dev->irq = irq; - } - if (!*port) - err = -ENODEV; - } - if (err) - goto out; - err = register_netdev(dev); - if (err) - goto out1; - return dev; -out1: - cleanup_card(dev); -out: - free_netdev(dev); - return ERR_PTR(err); -} - -static const struct net_device_ops at1700_netdev_ops = { - .ndo_open = net_open, - .ndo_stop = net_close, - .ndo_start_xmit = net_send_packet, - .ndo_set_rx_mode = set_rx_mode, - .ndo_tx_timeout = net_tx_timeout, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -}; - -/* The Fujitsu datasheet suggests that the NIC be probed for by checking its - "signature", the default bit pattern after a reset. This *doesn't* work -- - there is no way to reset the bus interface without a complete power-cycle! - - It turns out that ATI came to the same conclusion I did: the only thing - that can be done is checking a few bits and then diving right into an - EEPROM read. */ - -static int __init at1700_probe1(struct net_device *dev, int ioaddr) -{ - static const char fmv_irqmap[4] = {3, 7, 10, 15}; - static const char fmv_irqmap_pnp[8] = {3, 4, 5, 7, 9, 10, 11, 15}; - static const char at1700_irqmap[8] = {3, 4, 5, 9, 10, 11, 14, 15}; - unsigned int i, irq, is_fmv18x = 0, is_at1700 = 0; - int ret = -ENODEV; - struct net_local *lp = netdev_priv(dev); - - if (!request_region(ioaddr, AT1700_IO_EXTENT, DRV_NAME)) - return -EBUSY; - - /* Resetting the chip doesn't reset the ISA interface, so don't bother. - That means we have to be careful with the register values we probe - for. - */ -#ifdef notdef - printk("at1700 probe at %#x, eeprom is %4.4x %4.4x %4.4x ctrl %4.4x.\n", - ioaddr, read_eeprom(ioaddr, 4), read_eeprom(ioaddr, 5), - read_eeprom(ioaddr, 6), inw(ioaddr + EEPROM_Ctrl)); -#endif - /* We must check for the EEPROM-config boards first, else accessing - IOCONFIG0 will move the board! */ - if (at1700_probe_list[inb(ioaddr + IOCONFIG1) & 0x07] == ioaddr && - read_eeprom(ioaddr, 4) == 0x0000 && - (read_eeprom(ioaddr, 5) & 0xff00) == 0xF400) - is_at1700 = 1; - else if (inb(ioaddr + SAPROM ) == 0x00 && - inb(ioaddr + SAPROM + 1) == 0x00 && - inb(ioaddr + SAPROM + 2) == 0x0e) - is_fmv18x = 1; - else { - goto err_out; - } - - /* Reset the internal state machines. */ - outb(0, ioaddr + RESET); - - if (is_at1700) { - irq = at1700_irqmap[(read_eeprom(ioaddr, 12)&0x04) - | (read_eeprom(ioaddr, 0)>>14)]; - } else { - /* Check PnP mode for FMV-183/184/183A/184A. */ - /* This PnP routine is very poor. IO and IRQ should be known. */ - if (inb(ioaddr + CARDSTATUS1) & 0x20) { - irq = dev->irq; - for (i = 0; i < 8; i++) { - if (irq == fmv_irqmap_pnp[i]) - break; - } - if (i == 8) { - goto err_out; - } - } else { - if (fmv18x_probe_list[inb(ioaddr + IOCONFIG) & 0x07] != ioaddr) - goto err_out; - irq = fmv_irqmap[(inb(ioaddr + IOCONFIG)>>6) & 0x03]; - } - } - - printk("%s: %s found at %#3x, IRQ %d, address ", dev->name, - is_at1700 ? "AT1700" : "FMV-18X", ioaddr, irq); - - dev->base_addr = ioaddr; - dev->irq = irq; - - if (is_at1700) { - for(i = 0; i < 3; i++) { - unsigned short eeprom_val = read_eeprom(ioaddr, 4+i); - ((unsigned short *)dev->dev_addr)[i] = ntohs(eeprom_val); - } - } else { - for(i = 0; i < 6; i++) { - unsigned char val = inb(ioaddr + SAPROM + i); - dev->dev_addr[i] = val; - } - } - printk("%pM", dev->dev_addr); - - /* The EEPROM word 12 bit 0x0400 means use regular 100 ohm 10baseT signals, - rather than 150 ohm shielded twisted pair compensation. - 0x0000 == auto-sense the interface - 0x0800 == use TP interface - 0x1800 == use coax interface - */ - { - const char *porttype[] = {"auto-sense", "10baseT", "auto-sense", "10base2"}; - if (is_at1700) { - ushort setup_value = read_eeprom(ioaddr, 12); - dev->if_port = setup_value >> 8; - } else { - ushort setup_value = inb(ioaddr + CARDSTATUS); - switch (setup_value & 0x07) { - case 0x01: /* 10base5 */ - case 0x02: /* 10base2 */ - dev->if_port = 0x18; break; - case 0x04: /* 10baseT */ - dev->if_port = 0x08; break; - default: /* auto-sense */ - dev->if_port = 0x00; break; - } - } - printk(" %s interface.\n", porttype[(dev->if_port>>3) & 3]); - } - - /* Set the configuration register 0 to 32K 100ns. byte-wide memory, 16 bit - bus access, two 4K Tx queues, and disabled Tx and Rx. */ - outb(0xda, ioaddr + CONFIG_0); - - /* Set the station address in bank zero. */ - outb(0x00, ioaddr + CONFIG_1); - for (i = 0; i < 6; i++) - outb(dev->dev_addr[i], ioaddr + PORT_OFFSET(8 + i)); - - /* Switch to bank 1 and set the multicast table to accept none. */ - outb(0x04, ioaddr + CONFIG_1); - for (i = 0; i < 8; i++) - outb(0x00, ioaddr + PORT_OFFSET(8 + i)); - - - /* Switch to bank 2 */ - /* Lock our I/O address, and set manual processing mode for 16 collisions. */ - outb(0x08, ioaddr + CONFIG_1); - outb(dev->if_port, ioaddr + MODE13); - outb(0x00, ioaddr + COL16CNTL); - - if (net_debug) - printk(version); - - dev->netdev_ops = &at1700_netdev_ops; - dev->watchdog_timeo = TX_TIMEOUT; - - spin_lock_init(&lp->lock); - - lp->jumpered = is_fmv18x; - /* Snarf the interrupt vector now. */ - ret = request_irq(irq, net_interrupt, 0, DRV_NAME, dev); - if (ret) { - printk(KERN_ERR "AT1700 at %#3x is unusable due to a " - "conflict on IRQ %d.\n", - ioaddr, irq); - goto err_out; - } - - return 0; - -err_out: - release_region(ioaddr, AT1700_IO_EXTENT); - return ret; -} - - -/* EEPROM_Ctrl bits. */ -#define EE_SHIFT_CLK 0x40 /* EEPROM shift clock, in reg. 16. */ -#define EE_CS 0x20 /* EEPROM chip select, in reg. 16. */ -#define EE_DATA_WRITE 0x80 /* EEPROM chip data in, in reg. 17. */ -#define EE_DATA_READ 0x80 /* EEPROM chip data out, in reg. 17. */ - -/* The EEPROM commands include the alway-set leading bit. */ -#define EE_WRITE_CMD (5 << 6) -#define EE_READ_CMD (6 << 6) -#define EE_ERASE_CMD (7 << 6) - -static int __init read_eeprom(long ioaddr, int location) -{ - int i; - unsigned short retval = 0; - long ee_addr = ioaddr + EEPROM_Ctrl; - long ee_daddr = ioaddr + EEPROM_Data; - int read_cmd = location | EE_READ_CMD; - - /* Shift the read command bits out. */ - for (i = 9; i >= 0; i--) { - short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; - outb(EE_CS, ee_addr); - outb(dataval, ee_daddr); - outb(EE_CS | EE_SHIFT_CLK, ee_addr); /* EEPROM clock tick. */ - } - outb(EE_DATA_WRITE, ee_daddr); - for (i = 16; i > 0; i--) { - outb(EE_CS, ee_addr); - outb(EE_CS | EE_SHIFT_CLK, ee_addr); - retval = (retval << 1) | ((inb(ee_daddr) & EE_DATA_READ) ? 1 : 0); - } - - /* Terminate the EEPROM access. */ - outb(EE_CS, ee_addr); - outb(EE_SHIFT_CLK, ee_addr); - outb(0, ee_addr); - return retval; -} - - - -static int net_open(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - - /* Set the configuration register 0 to 32K 100ns. byte-wide memory, 16 bit - bus access, and two 4K Tx queues. */ - outb(0x5a, ioaddr + CONFIG_0); - - /* Powerup, switch to register bank 2, and enable the Rx and Tx. */ - outb(0xe8, ioaddr + CONFIG_1); - - lp->tx_started = 0; - lp->tx_queue_ready = 1; - lp->rx_started = 0; - lp->tx_queue = 0; - lp->tx_queue_len = 0; - - /* Turn on hardware Tx and Rx interrupts. */ - outb(0x82, ioaddr + TX_INTR); - outb(0x81, ioaddr + RX_INTR); - - /* Enable the IRQ on boards of fmv18x it is feasible. */ - if (lp->jumpered) { - outb(0x80, ioaddr + IOCONFIG1); - } - - netif_start_queue(dev); - return 0; -} - -static void net_tx_timeout (struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - - printk ("%s: transmit timed out with status %04x, %s?\n", dev->name, - inw (ioaddr + STATUS), inb (ioaddr + TX_STATUS) & 0x80 - ? "IRQ conflict" : "network cable problem"); - printk ("%s: timeout registers: %04x %04x %04x %04x %04x %04x %04x %04x.\n", - dev->name, inw(ioaddr + TX_STATUS), inw(ioaddr + TX_INTR), inw(ioaddr + TX_MODE), - inw(ioaddr + CONFIG_0), inw(ioaddr + DATAPORT), inw(ioaddr + TX_START), - inw(ioaddr + MODE13 - 1), inw(ioaddr + RX_CTRL)); - dev->stats.tx_errors++; - /* ToDo: We should try to restart the adaptor... */ - outw(0xffff, ioaddr + MODE24); - outw (0xffff, ioaddr + TX_STATUS); - outb (0x5a, ioaddr + CONFIG_0); - outb (0xe8, ioaddr + CONFIG_1); - outw (0x8182, ioaddr + TX_INTR); - outb (0x00, ioaddr + TX_START); - outb (0x03, ioaddr + COL16CNTL); - - dev->trans_start = jiffies; /* prevent tx timeout */ - - lp->tx_started = 0; - lp->tx_queue_ready = 1; - lp->rx_started = 0; - lp->tx_queue = 0; - lp->tx_queue_len = 0; - - netif_wake_queue(dev); -} - - -static netdev_tx_t net_send_packet (struct sk_buff *skb, - struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN; - short len = skb->len; - unsigned char *buf = skb->data; - static u8 pad[ETH_ZLEN]; - - netif_stop_queue (dev); - - /* We may not start transmitting unless we finish transferring - a packet into the Tx queue. During executing the following - codes we possibly catch a Tx interrupt. Thus we flag off - tx_queue_ready, so that we prevent the interrupt routine - (net_interrupt) to start transmitting. */ - lp->tx_queue_ready = 0; - { - outw (length, ioaddr + DATAPORT); - /* Packet data */ - outsw (ioaddr + DATAPORT, buf, len >> 1); - /* Check for dribble byte */ - if (len & 1) { - outw(skb->data[skb->len-1], ioaddr + DATAPORT); - len++; - } - /* Check for packet padding */ - if (length != skb->len) - outsw(ioaddr + DATAPORT, pad, (length - len + 1) >> 1); - - lp->tx_queue++; - lp->tx_queue_len += length + 2; - } - lp->tx_queue_ready = 1; - - if (lp->tx_started == 0) { - /* If the Tx is idle, always trigger a transmit. */ - outb (0x80 | lp->tx_queue, ioaddr + TX_START); - lp->tx_queue = 0; - lp->tx_queue_len = 0; - lp->tx_started = 1; - netif_start_queue (dev); - } else if (lp->tx_queue_len < 4096 - 1502) - /* Yes, there is room for one more packet. */ - netif_start_queue (dev); - dev_kfree_skb (skb); - - return NETDEV_TX_OK; -} - -/* The typical workload of the driver: - Handle the network interface interrupts. */ -static irqreturn_t net_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct net_local *lp; - int ioaddr, status; - int handled = 0; - - if (dev == NULL) { - printk ("at1700_interrupt(): irq %d for unknown device.\n", irq); - return IRQ_NONE; - } - - ioaddr = dev->base_addr; - lp = netdev_priv(dev); - - spin_lock (&lp->lock); - - status = inw(ioaddr + TX_STATUS); - outw(status, ioaddr + TX_STATUS); - - if (net_debug > 4) - printk("%s: Interrupt with status %04x.\n", dev->name, status); - if (lp->rx_started == 0 && - (status & 0xff00 || (inb(ioaddr + RX_MODE) & 0x40) == 0)) { - /* Got a packet(s). - We cannot execute net_rx more than once at the same time for - the same device. During executing net_rx, we possibly catch a - Tx interrupt. Thus we flag on rx_started, so that we prevent - the interrupt routine (net_interrupt) to dive into net_rx - again. */ - handled = 1; - lp->rx_started = 1; - outb(0x00, ioaddr + RX_INTR); /* Disable RX intr. */ - net_rx(dev); - outb(0x81, ioaddr + RX_INTR); /* Enable RX intr. */ - lp->rx_started = 0; - } - if (status & 0x00ff) { - handled = 1; - if (status & 0x02) { - /* More than 16 collisions occurred */ - if (net_debug > 4) - printk("%s: 16 Collision occur during Txing.\n", dev->name); - /* Cancel sending a packet. */ - outb(0x03, ioaddr + COL16CNTL); - dev->stats.collisions++; - } - if (status & 0x82) { - dev->stats.tx_packets++; - /* The Tx queue has any packets and is not being - transferred a packet from the host, start - transmitting. */ - if (lp->tx_queue && lp->tx_queue_ready) { - outb(0x80 | lp->tx_queue, ioaddr + TX_START); - lp->tx_queue = 0; - lp->tx_queue_len = 0; - dev->trans_start = jiffies; - netif_wake_queue (dev); - } else { - lp->tx_started = 0; - netif_wake_queue (dev); - } - } - } - - spin_unlock (&lp->lock); - return IRQ_RETVAL(handled); -} - -/* We have a good packet(s), get it/them out of the buffers. */ -static void -net_rx(struct net_device *dev) -{ - int ioaddr = dev->base_addr; - int boguscount = 5; - - while ((inb(ioaddr + RX_MODE) & 0x40) == 0) { - ushort status = inw(ioaddr + DATAPORT); - ushort pkt_len = inw(ioaddr + DATAPORT); - - if (net_debug > 4) - printk("%s: Rxing packet mode %02x status %04x.\n", - dev->name, inb(ioaddr + RX_MODE), status); -#ifndef final_version - if (status == 0) { - outb(0x05, ioaddr + RX_CTRL); - break; - } -#endif - - if ((status & 0xF0) != 0x20) { /* There was an error. */ - dev->stats.rx_errors++; - if (status & 0x08) dev->stats.rx_length_errors++; - if (status & 0x04) dev->stats.rx_frame_errors++; - if (status & 0x02) dev->stats.rx_crc_errors++; - if (status & 0x01) dev->stats.rx_over_errors++; - } else { - /* Malloc up new buffer. */ - struct sk_buff *skb; - - if (pkt_len > 1550) { - printk("%s: The AT1700 claimed a very large packet, size %d.\n", - dev->name, pkt_len); - /* Prime the FIFO and then flush the packet. */ - inw(ioaddr + DATAPORT); inw(ioaddr + DATAPORT); - outb(0x05, ioaddr + RX_CTRL); - dev->stats.rx_errors++; - break; - } - skb = netdev_alloc_skb(dev, pkt_len + 3); - if (skb == NULL) { - printk("%s: Memory squeeze, dropping packet (len %d).\n", - dev->name, pkt_len); - /* Prime the FIFO and then flush the packet. */ - inw(ioaddr + DATAPORT); inw(ioaddr + DATAPORT); - outb(0x05, ioaddr + RX_CTRL); - dev->stats.rx_dropped++; - break; - } - skb_reserve(skb,2); - - insw(ioaddr + DATAPORT, skb_put(skb,pkt_len), (pkt_len + 1) >> 1); - skb->protocol=eth_type_trans(skb, dev); - netif_rx(skb); - dev->stats.rx_packets++; - dev->stats.rx_bytes += pkt_len; - } - if (--boguscount <= 0) - break; - } - - /* If any worth-while packets have been received, dev_rint() - has done a mark_bh(NET_BH) for us and will work on them - when we get to the bottom-half routine. */ - { - int i; - for (i = 0; i < 20; i++) { - if ((inb(ioaddr + RX_MODE) & 0x40) == 0x40) - break; - inw(ioaddr + DATAPORT); /* dummy status read */ - outb(0x05, ioaddr + RX_CTRL); - } - - if (net_debug > 5) - printk("%s: Exint Rx packet with mode %02x after %d ticks.\n", - dev->name, inb(ioaddr + RX_MODE), i); - } -} - -/* The inverse routine to net_open(). */ -static int net_close(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - - netif_stop_queue(dev); - - /* Set configuration register 0 to disable Tx and Rx. */ - outb(0xda, ioaddr + CONFIG_0); - - /* No statistic counters on the chip to update. */ - - /* Disable the IRQ on boards of fmv18x where it is feasible. */ - if (lp->jumpered) - outb(0x00, ioaddr + IOCONFIG1); - - /* Power-down the chip. Green, green, green! */ - outb(0x00, ioaddr + CONFIG_1); - return 0; -} - -/* - Set the multicast/promiscuous mode for this adaptor. -*/ - -static void -set_rx_mode(struct net_device *dev) -{ - int ioaddr = dev->base_addr; - struct net_local *lp = netdev_priv(dev); - unsigned char mc_filter[8]; /* Multicast hash filter */ - unsigned long flags; - - if (dev->flags & IFF_PROMISC) { - memset(mc_filter, 0xff, sizeof(mc_filter)); - outb(3, ioaddr + RX_MODE); /* Enable promiscuous mode */ - } else if (netdev_mc_count(dev) > MC_FILTERBREAK || - (dev->flags & IFF_ALLMULTI)) { - /* Too many to filter perfectly -- accept all multicasts. */ - memset(mc_filter, 0xff, sizeof(mc_filter)); - outb(2, ioaddr + RX_MODE); /* Use normal mode. */ - } else if (netdev_mc_empty(dev)) { - memset(mc_filter, 0x00, sizeof(mc_filter)); - outb(1, ioaddr + RX_MODE); /* Ignore almost all multicasts. */ - } else { - struct netdev_hw_addr *ha; - - memset(mc_filter, 0, sizeof(mc_filter)); - netdev_for_each_mc_addr(ha, dev) { - unsigned int bit = - ether_crc_le(ETH_ALEN, ha->addr) >> 26; - mc_filter[bit >> 3] |= (1 << bit); - } - outb(0x02, ioaddr + RX_MODE); /* Use normal mode. */ - } - - spin_lock_irqsave (&lp->lock, flags); - if (memcmp(mc_filter, lp->mc_filter, sizeof(mc_filter))) { - int i; - int saved_bank = inw(ioaddr + CONFIG_0); - /* Switch to bank 1 and set the multicast table. */ - outw((saved_bank & ~0x0C00) | 0x0480, ioaddr + CONFIG_0); - for (i = 0; i < 8; i++) - outb(mc_filter[i], ioaddr + PORT_OFFSET(8 + i)); - memcpy(lp->mc_filter, mc_filter, sizeof(mc_filter)); - outw(saved_bank, ioaddr + CONFIG_0); - } - spin_unlock_irqrestore (&lp->lock, flags); -} - -#ifdef MODULE -static struct net_device *dev_at1700; - -module_param(io, int, 0); -module_param(irq, int, 0); -module_param(net_debug, int, 0); -MODULE_PARM_DESC(io, "AT1700/FMV18X I/O base address"); -MODULE_PARM_DESC(irq, "AT1700/FMV18X IRQ number"); -MODULE_PARM_DESC(net_debug, "AT1700/FMV18X debug level (0-6)"); - -static int __init at1700_module_init(void) -{ - if (io == 0) - printk("at1700: You should not use auto-probing with insmod!\n"); - dev_at1700 = at1700_probe(-1); - if (IS_ERR(dev_at1700)) - return PTR_ERR(dev_at1700); - return 0; -} - -static void __exit at1700_module_exit(void) -{ - unregister_netdev(dev_at1700); - cleanup_card(dev_at1700); - free_netdev(dev_at1700); -} -module_init(at1700_module_init); -module_exit(at1700_module_exit); -#endif /* MODULE */ -MODULE_LICENSE("GPL"); |