+++ /dev/null
-/* 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");
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / commitdiff