diff options
Diffstat (limited to 'drivers/net/fmv18x.c')
| -rw-r--r-- | drivers/net/fmv18x.c | 689 |
1 files changed, 0 insertions, 689 deletions
diff --git a/drivers/net/fmv18x.c b/drivers/net/fmv18x.c deleted file mode 100644 index 04c7485..0000000 --- a/drivers/net/fmv18x.c +++ /dev/null @@ -1,689 +0,0 @@ -/* fmv18x.c: A network device driver for the Fujitsu FMV-181/182/183/184. - - Original: at1700.c (1993-94 by Donald Becker). - Copyright 1993 United States Government as represented by the - Director, National Security Agency. - The author may be reached as becker@scyld.com, or C/O - Scyld Computing Corporation - 410 Severn Ave., Suite 210 - Annapolis MD 21403 - - Modified by Yutaka TAMIYA (tamy@flab.fujitsu.co.jp) - Copyright 1994 Fujitsu Laboratories Ltd. - Special thanks to: - Masayoshi UTAKA (utaka@ace.yk.fujitsu.co.jp) - for testing this driver. - H. NEGISHI (agy, negishi@sun45.psd.cs.fujitsu.co.jp) - for suggestion of some program modification. - Masahiro SEKIGUCHI <seki@sysrap.cs.fujitsu.co.jp> - for suggestion of some program modification. - Kazutoshi MORIOKA (morioka@aurora.oaks.cs.fujitsu.co.jp) - for testing this driver. - - This software may be used and distributed according to the terms - of the GNU General Public License, incorporated herein by reference. - - This is a device driver for the Fujitsu FMV-181/182/183/184, which - is a straight-forward Fujitsu MB86965 implementation. - - Sources: - at1700.c - The Fujitsu MB86965 datasheet. - The Fujitsu FMV-181/182 user's guide -*/ - -static const char version[] = - "fmv18x.c:v2.2.0 09/24/98 Yutaka TAMIYA (tamy@flab.fujitsu.co.jp)\n"; - -#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/slab.h> -#include <linux/string.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/spinlock.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/delay.h> -#include <linux/bitops.h> - -#include <asm/system.h> -#include <asm/io.h> -#include <asm/dma.h> - -#define DRV_NAME "fmv18x" - -static unsigned fmv18x_probe_list[] __initdata = { - 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x300, 0x340, 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 { - struct net_device_stats stats; - long open_time; /* Useless example local info. */ - uint tx_started:1; /* Number of packet 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. */ - spinlock_t lock; -}; - - -/* 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 /* Controll Reg for 16 collisions */ -#define MODE13 13 -/* Fujitsu FMV-18x Card Configuration */ -#define FJ_STATUS0 0x10 -#define FJ_STATUS1 0x11 -#define FJ_CONFIG0 0x12 -#define FJ_CONFIG1 0x13 -#define FJ_MACADDR 0x14 /* 0x14 - 0x19 */ -#define FJ_BUFCNTL 0x1A -#define FJ_BUFDATA 0x1C -#define FMV18X_IO_EXTENT 32 - -/* Index to functions, as function prototypes. */ - -static int fmv18x_probe1(struct net_device *dev, short ioaddr); -static int net_open(struct net_device *dev); -static int net_send_packet(struct sk_buff *skb, struct net_device *dev); -static irqreturn_t net_interrupt(int irq, void *dev_id, struct pt_regs *regs); -static void net_rx(struct net_device *dev); -static void net_timeout(struct net_device *dev); -static int net_close(struct net_device *dev); -static struct net_device_stats *net_get_stats(struct net_device *dev); -static void set_multicast_list(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 = 0x220; -static int irq; - -struct net_device * __init fmv18x_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; - } - - SET_MODULE_OWNER(dev); - - if (io > 0x1ff) { /* Check a single specified location. */ - err = fmv18x_probe1(dev, io); - } else if (io != 0) { /* Don't probe at all. */ - err = -ENXIO; - } else { - for (port = fmv18x_probe_list; *port; port++) - if (fmv18x_probe1(dev, *port) == 0) - break; - if (!*port) - err = -ENODEV; - } - if (err) - goto out; - err = register_netdev(dev); - if (err) - goto out1; - return dev; -out1: - free_irq(dev->irq, dev); - release_region(dev->base_addr, FMV18X_IO_EXTENT); -out: - free_netdev(dev); - return ERR_PTR(err); -} - -/* 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 MAC - address check. */ - -static int __init fmv18x_probe1(struct net_device *dev, short ioaddr) -{ - char irqmap[4] = {3, 7, 10, 15}; - char irqmap_pnp[8] = {3, 4, 5, 7, 9, 10, 11, 15}; - unsigned int i, retval; - struct net_local *lp; - - /* 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. - */ - - if (!request_region(ioaddr, FMV18X_IO_EXTENT, DRV_NAME)) - return -EBUSY; - - dev->irq = irq; - dev->base_addr = ioaddr; - - /* Check I/O address configuration and Fujitsu vendor code */ - if (inb(ioaddr+FJ_MACADDR ) != 0x00 - || inb(ioaddr+FJ_MACADDR+1) != 0x00 - || inb(ioaddr+FJ_MACADDR+2) != 0x0e) { - retval = -ENODEV; - goto out; - } - - /* Check PnP mode for FMV-183/184/183A/184A. */ - /* This PnP routine is very poor. IO and IRQ should be known. */ - if (inb(ioaddr + FJ_STATUS1) & 0x20) { - for (i = 0; i < 8; i++) { - if (dev->irq == irqmap_pnp[i]) - break; - } - if (i == 8) { - retval = -ENODEV; - goto out; - } - } else { - if (fmv18x_probe_list[inb(ioaddr + FJ_CONFIG0) & 0x07] != ioaddr) - return -ENODEV; - dev->irq = irqmap[(inb(ioaddr + FJ_CONFIG0)>>6) & 0x03]; - } - - /* Snarf the interrupt vector now. */ - retval = request_irq(dev->irq, &net_interrupt, 0, DRV_NAME, dev); - if (retval) { - printk ("FMV-18x found at %#3x, but it's unusable due to a conflict on" - "IRQ %d.\n", ioaddr, dev->irq); - goto out; - } - - printk("%s: FMV-18x found at %#3x, IRQ %d, address ", dev->name, - ioaddr, dev->irq); - - for(i = 0; i < 6; i++) { - unsigned char val = inb(ioaddr + FJ_MACADDR + i); - printk("%02x", val); - dev->dev_addr[i] = val; - } - - /* "FJ_STATUS0" 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", "10base2/5"}; - ushort setup_value = inb(ioaddr + FJ_STATUS0); - - 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]); - } - - /* Initialize LAN Controller and LAN Card */ - outb(0xda, ioaddr + CONFIG_0); /* Initialize LAN Controller */ - outb(0x00, ioaddr + CONFIG_1); /* Stand by mode */ - outb(0x00, ioaddr + FJ_CONFIG1); /* Disable IRQ of LAN Card */ - outb(0x00, ioaddr + FJ_BUFCNTL); /* Reset ? I'm not sure (TAMIYA) */ - - /* wait for a while */ - udelay(200); - - /* Set the station address in bank zero. */ - outb(0x00, ioaddr + CONFIG_1); - for (i = 0; i < 6; i++) - outb(dev->dev_addr[i], ioaddr + 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 + 8 + i); - - /* Switch to bank 2 and lock our I/O address. */ - outb(0x08, ioaddr + CONFIG_1); - outb(dev->if_port, ioaddr + MODE13); - outb(0x00, ioaddr + COL16CNTL); - - if (net_debug) - printk(version); - - /* Initialize the device structure. */ - dev->priv = kmalloc(sizeof(struct net_local), GFP_KERNEL); - if (!dev->priv) { - retval = -ENOMEM; - goto out_irq; - } - memset(dev->priv, 0, sizeof(struct net_local)); - lp = dev->priv; - spin_lock_init(&lp->lock); - - dev->open = net_open; - dev->stop = net_close; - dev->hard_start_xmit = net_send_packet; - dev->tx_timeout = net_timeout; - dev->watchdog_timeo = HZ/10; - dev->get_stats = net_get_stats; - dev->set_multicast_list = set_multicast_list; - return 0; - -out_irq: - free_irq(dev->irq, dev); -out: - release_region(ioaddr, FMV18X_IO_EXTENT); - return retval; -} - - -static int net_open(struct net_device *dev) -{ - struct net_local *lp = dev->priv; - int ioaddr = dev->base_addr; - - /* Set the configuration register 0 to 32K 100ns. byte-wide memory, - 16 bit bus access, and two 4K Tx, enable the Rx and Tx. */ - outb(0x5a, ioaddr + CONFIG_0); - - /* Powerup and switch to register bank 2 for the run-time registers. */ - 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; - - /* Clear Tx and Rx Status */ - outb(0xff, ioaddr + TX_STATUS); - outb(0xff, ioaddr + RX_STATUS); - lp->open_time = jiffies; - - netif_start_queue(dev); - - /* Enable the IRQ of the LAN Card */ - outb(0x80, ioaddr + FJ_CONFIG1); - - /* Enable both Tx and Rx interrupts */ - outw(0x8182, ioaddr+TX_INTR); - - return 0; -} - -static void net_timeout(struct net_device *dev) -{ - struct net_local *lp = dev->priv; - int ioaddr = dev->base_addr; - unsigned long flags; - - - printk(KERN_WARNING "%s: transmit timed out with status %04x, %s?\n", dev->name, - htons(inw(ioaddr + TX_STATUS)), - inb(ioaddr + TX_STATUS) & 0x80 - ? "IRQ conflict" : "network cable problem"); - printk(KERN_WARNING "%s: timeout registers: %04x %04x %04x %04x %04x %04x %04x %04x.\n", - dev->name, htons(inw(ioaddr + 0)), - htons(inw(ioaddr + 2)), htons(inw(ioaddr + 4)), - htons(inw(ioaddr + 6)), htons(inw(ioaddr + 8)), - htons(inw(ioaddr +10)), htons(inw(ioaddr +12)), - htons(inw(ioaddr +14))); - printk(KERN_WARNING "eth card: %04x %04x\n", - htons(inw(ioaddr+FJ_STATUS0)), - htons(inw(ioaddr+FJ_CONFIG0))); - lp->stats.tx_errors++; - /* ToDo: We should try to restart the adaptor... */ - spin_lock_irqsave(&lp->lock, flags); - - /* Initialize LAN Controller and LAN Card */ - outb(0xda, ioaddr + CONFIG_0); /* Initialize LAN Controller */ - outb(0x00, ioaddr + CONFIG_1); /* Stand by mode */ - outb(0x00, ioaddr + FJ_CONFIG1); /* Disable IRQ of LAN Card */ - outb(0x00, ioaddr + FJ_BUFCNTL); /* Reset ? I'm not sure */ - net_open(dev); - spin_unlock_irqrestore(&lp->lock, flags); - - netif_wake_queue(dev); -} - -static int net_send_packet(struct sk_buff *skb, struct net_device *dev) -{ - struct net_local *lp = dev->priv; - int ioaddr = dev->base_addr; - short length = skb->len; - unsigned char *buf; - unsigned long flags; - - /* Block a transmit from overlapping. */ - - if (length > ETH_FRAME_LEN) { - if (net_debug) - printk("%s: Attempting to send a large packet (%d bytes).\n", - dev->name, length); - return 1; - } - - if (length < ETH_ZLEN) { - skb = skb_padto(skb, ETH_ZLEN); - if (skb == NULL) - return 0; - length = ETH_ZLEN; - } - buf = skb->data; - - if (net_debug > 4) - printk("%s: Transmitting a packet of length %lu.\n", dev->name, - (unsigned long)skb->len); - /* 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. */ - spin_lock_irqsave(&lp->lock, flags); - lp->tx_queue_ready = 0; - { - outw(length, ioaddr + DATAPORT); - outsw(ioaddr + DATAPORT, buf, (length + 1) >> 1); - lp->tx_queue++; - lp->tx_queue_len += length + 2; - } - lp->tx_queue_ready = 1; - spin_unlock_irqrestore(&lp->lock, flags); - - 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; - dev->trans_start = jiffies; - lp->tx_started = 1; - } else if (lp->tx_queue_len >= 4096 - 1502) /* No room for a packet */ - netif_stop_queue(dev); - - dev_kfree_skb(skb); - return 0; -} - -/* The typical workload of the driver: - Handle the network interface interrupts. */ -static irqreturn_t -net_interrupt(int irq, void *dev_id, struct pt_regs *regs) -{ - struct net_device *dev = dev_id; - struct net_local *lp; - int ioaddr, status; - - ioaddr = dev->base_addr; - lp = dev->priv; - 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. */ - 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) { - 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); - lp->stats.collisions++; - } - if (status & 0x82) { - spin_lock(&lp->lock); - lp->stats.tx_packets++; - 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); /* Inform upper layers. */ - } else { - lp->tx_started = 0; - netif_wake_queue(dev); /* Inform upper layers. */ - } - spin_unlock(&lp->lock); - } - } - return IRQ_RETVAL(status); -} - -/* We have a good packet(s), get it/them out of the buffers. */ -static void net_rx(struct net_device *dev) -{ - struct net_local *lp = dev->priv; - int ioaddr = dev->base_addr; - int boguscount = 5; - - while ((inb(ioaddr + RX_MODE) & 0x40) == 0) { - /* Clear PKT_RDY bit: by agy 19940922 */ - /* outb(0x80, ioaddr + RX_STATUS); */ - ushort status = 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 + 14); - break; - } -#endif - - if ((status & 0xF0) != 0x20) { /* There was an error. */ - lp->stats.rx_errors++; - if (status & 0x08) lp->stats.rx_length_errors++; - if (status & 0x04) lp->stats.rx_frame_errors++; - if (status & 0x02) lp->stats.rx_crc_errors++; - if (status & 0x01) lp->stats.rx_over_errors++; - } else { - ushort pkt_len = inw(ioaddr + DATAPORT); - /* Malloc up new buffer. */ - struct sk_buff *skb; - - if (pkt_len > 1550) { - printk("%s: The FMV-18x claimed a very large packet, size %d.\n", - dev->name, pkt_len); - outb(0x05, ioaddr + 14); - lp->stats.rx_errors++; - break; - } - skb = dev_alloc_skb(pkt_len+3); - if (skb == NULL) { - printk("%s: Memory squeeze, dropping packet (len %d).\n", - dev->name, pkt_len); - outb(0x05, ioaddr + 14); - lp->stats.rx_dropped++; - break; - } - skb->dev = dev; - skb_reserve(skb,2); - - insw(ioaddr + DATAPORT, skb_put(skb,pkt_len), (pkt_len + 1) >> 1); - - if (net_debug > 5) { - int i; - printk("%s: Rxed packet of length %d: ", dev->name, pkt_len); - for (i = 0; i < 14; i++) - printk(" %02x", skb->data[i]); - printk(".\n"); - } - - skb->protocol=eth_type_trans(skb, dev); - netif_rx(skb); - dev->last_rx = jiffies; - lp->stats.rx_packets++; - lp->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; - (void)inw(ioaddr + DATAPORT); /* dummy status read */ - outb(0x05, ioaddr + 14); - } - - if (net_debug > 5 && i > 0) - printk("%s: Exint Rx packet with mode %02x after %d ticks.\n", - dev->name, inb(ioaddr + RX_MODE), i); - } - - return; -} - -/* The inverse routine to net_open(). */ -static int net_close(struct net_device *dev) -{ - int ioaddr = dev->base_addr; - - ((struct net_local *)dev->priv)->open_time = 0; - - netif_stop_queue(dev); - - /* Set configuration register 0 to disable Tx and Rx. */ - outb(0xda, ioaddr + CONFIG_0); - - /* Update the statistics -- ToDo. */ - - /* Power-down the chip. Green, green, green! */ - outb(0x00, ioaddr + CONFIG_1); - - /* Set the ethernet adaptor disable IRQ */ - outb(0x00, ioaddr + FJ_CONFIG1); - - return 0; -} - -/* Get the current statistics. This may be called with the card open or - closed. */ -static struct net_device_stats *net_get_stats(struct net_device *dev) -{ - struct net_local *lp = dev->priv; - return &lp->stats; -} - -/* Set or clear the multicast filter for this adaptor. - 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. - */ - -static void set_multicast_list(struct net_device *dev) -{ - short ioaddr = dev->base_addr; - if (dev->mc_count || dev->flags&(IFF_PROMISC|IFF_ALLMULTI)) - { - /* - * We must make the kernel realise we had to move - * into promisc mode or we start all out war on - * the cable. - AC - */ - dev->flags|=IFF_PROMISC; - - outb(3, ioaddr + RX_MODE); /* Enable promiscuous mode */ - } - else - outb(2, ioaddr + RX_MODE); /* Disable promiscuous, use normal mode */ -} - -#ifdef MODULE -static struct net_device *dev_fmv18x; - -MODULE_PARM(io, "i"); -MODULE_PARM(irq, "i"); -MODULE_PARM(net_debug, "i"); -MODULE_PARM_DESC(io, "FMV-18X I/O address"); -MODULE_PARM_DESC(irq, "FMV-18X IRQ number"); -MODULE_PARM_DESC(net_debug, "FMV-18X debug level (0-1,5-6)"); -MODULE_LICENSE("GPL"); - -int init_module(void) -{ - if (io == 0) - printk("fmv18x: You should not use auto-probing with insmod!\n"); - dev_fmv18x = fmv18x_probe(-1); - if (IS_ERR(dev_fmv18x)) - return PTR_ERR(dev_fmv18x); - return 0; -} - -void -cleanup_module(void) -{ - unregister_netdev(dev_fmv18x); - free_irq(dev_fmv18x->irq, dev_fmv18x); - release_region(dev_fmv18x->base_addr, FMV18X_IO_EXTENT); - free_netdev(dev_fmv18x); -} -#endif /* MODULE */ - -/* - * Local variables: - * compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c fmv18x.c" - * version-control: t - * kept-new-versions: 5 - * tab-width: 4 - * c-indent-level: 4 - * End: - */ |
