ni5010.c
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上传日期:2013-02-24
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- /* ni5010.c: A network driver for the MiCom-Interlan NI5010 ethercard.
- *
- * Copyright 1996,1997 Jan-Pascal van Best and Andreas Mohr.
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- *
- * The authors may be reached as:
- * jvbest@wi.leidenuniv.nl a.mohr@mailto.de
- * or by snail mail as
- * Jan-Pascal van Best Andreas Mohr
- * Klikspaanweg 58-4 Stauferstr. 6
- * 2324 LZ Leiden D-71272 Renningen
- * The Netherlands Germany
- *
- * Sources:
- * Donald Becker's "skeleton.c"
- * Crynwr ni5010 packet driver
- *
- * Changes:
- * v0.0: First test version
- * v0.1: First working version
- * v0.2:
- * v0.3->v0.90: Now demand setting io and irq when loading as module
- * 970430 v0.91: modified for Linux 2.1.14
- * v0.92: Implemented Andreas' (better) NI5010 probe
- * 970503 v0.93: Fixed auto-irq failure on warm reboot (JB)
- * 970623 v1.00: First kernel version (AM)
- * 970814 v1.01: Added detection of onboard receive buffer size (AM)
- * Bugs:
- * - None known...
- * - Note that you have to patch ifconfig for the new /proc/net/dev
- * format. It gives incorrect stats otherwise.
- *
- * To do:
- * Fix all bugs :-)
- * Move some stuff to chipset_init()
- * Handle xmt errors other than collisions
- * Complete merge with Andreas' driver
- * Implement ring buffers (Is this useful? You can't squeeze
- * too many packet in a 2k buffer!)
- * Implement DMA (Again, is this useful? Some docs says DMA is
- * slower than programmed I/O)
- *
- * Compile with:
- * gcc -O2 -fomit-frame-pointer -m486 -D__KERNEL__
- * -DMODULE -c ni5010.c
- *
- * Insert with e.g.:
- * insmod ni5010.o io=0x300 irq=5
- */
- #include <linux/module.h>
- #include <linux/kernel.h>
- #include <linux/string.h>
- #include <linux/errno.h>
- #include <linux/ioport.h>
- #include <linux/slab.h>
- #include <linux/interrupt.h>
- #include <linux/delay.h>
- #include <linux/init.h>
- #include <asm/bitops.h>
- #include <asm/io.h>
- #include <asm/dma.h>
- #include <linux/netdevice.h>
- #include <linux/etherdevice.h>
- #include <linux/skbuff.h>
- #include "ni5010.h"
- static const char *boardname = "NI5010";
- static char *version =
- "ni5010.c: v1.00 06/23/97 Jan-Pascal van Best and Andreas Mohrn";
-
- /* bufsize_rcv == 0 means autoprobing */
- static unsigned int bufsize_rcv;
- #define jumpered_interrupts /* IRQ line jumpered on board */
- #undef jumpered_dma /* No DMA used */
- #undef FULL_IODETECT /* Only detect in portlist */
- #ifndef FULL_IODETECT
- /* A zero-terminated list of I/O addresses to be probed. */
- static unsigned int ni5010_portlist[] __initdata =
- { 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0 };
- #endif
- /* Use 0 for production, 1 for verification, >2 for debug */
- #ifndef NI5010_DEBUG
- #define NI5010_DEBUG 0
- #endif
- /* Information that needs to be kept for each board. */
- struct ni5010_local {
- struct net_device_stats stats;
- int o_pkt_size;
- int i_pkt_size;
- };
- /* Index to functions, as function prototypes. */
- extern int ni5010_probe(struct net_device *dev);
- static int ni5010_probe1(struct net_device *dev, int ioaddr);
- static int ni5010_open(struct net_device *dev);
- static int ni5010_send_packet(struct sk_buff *skb, struct net_device *dev);
- static void ni5010_interrupt(int irq, void *dev_id, struct pt_regs *regs);
- static void ni5010_rx(struct net_device *dev);
- static void ni5010_timeout(struct net_device *dev);
- static int ni5010_close(struct net_device *dev);
- static struct net_device_stats *ni5010_get_stats(struct net_device *dev);
- static void ni5010_set_multicast_list(struct net_device *dev);
- static void reset_receiver(struct net_device *dev);
- static int process_xmt_interrupt(struct net_device *dev);
- #define tx_done(dev) 1
- static void hardware_send_packet(struct net_device *dev, char *buf, int length);
- static void chipset_init(struct net_device *dev, int startp);
- static void dump_packet(void *buf, int len);
- static void ni5010_show_registers(struct net_device *dev);
- int __init ni5010_probe(struct net_device *dev)
- {
- int *port;
- int base_addr = dev->base_addr;
- PRINTK2((KERN_DEBUG "%s: Entering ni5010_proben", dev->name));
- SET_MODULE_OWNER(dev);
- if (base_addr > 0x1ff) /* Check a single specified location. */
- return ni5010_probe1(dev, base_addr);
- else if (base_addr != 0) /* Don't probe at all. */
- return -ENXIO;
- #ifdef FULL_IODETECT
- for (int ioaddr=0x200; ioaddr<0x400; ioaddr+=0x20) {
- if (check_region(ioaddr, NI5010_IO_EXTENT))
- continue;
- if (ni5010_probe1(dev, ioaddr) == 0)
- return 0;
- }
- #else
- for (port = ni5010_portlist; *port; port++) {
- int ioaddr = *port;
- if (check_region(ioaddr, NI5010_IO_EXTENT))
- continue;
- if (ni5010_probe1(dev, ioaddr) == 0)
- return 0;
- }
- #endif /* FULL_IODETECT */
- return -ENODEV;
- }
- static inline int rd_port(int ioaddr)
- {
- inb(IE_RBUF);
- return inb(IE_SAPROM);
- }
- static void __init trigger_irq(int ioaddr)
- {
- outb(0x00, EDLC_RESET); /* Clear EDLC hold RESET state */
- outb(0x00, IE_RESET); /* Board reset */
- outb(0x00, EDLC_XMASK); /* Disable all Xmt interrupts */
- outb(0x00, EDLC_RMASK); /* Disable all Rcv interrupt */
- outb(0xff, EDLC_XCLR); /* Clear all pending Xmt interrupts */
- outb(0xff, EDLC_RCLR); /* Clear all pending Rcv interrupts */
- /*
- * Transmit packet mode: Ignore parity, Power xcvr,
- * Enable loopback
- */
- outb(XMD_IG_PAR | XMD_T_MODE | XMD_LBC, EDLC_XMODE);
- outb(RMD_BROADCAST, EDLC_RMODE); /* Receive normal&broadcast */
- outb(XM_ALL, EDLC_XMASK); /* Enable all Xmt interrupts */
- udelay(50); /* FIXME: Necessary? */
- outb(MM_EN_XMT|MM_MUX, IE_MMODE); /* Start transmission */
- }
- /*
- * This is the real probe routine. Linux has a history of friendly device
- * probes on the ISA bus. A good device probes avoids doing writes, and
- * verifies that the correct device exists and functions.
- */
- static int __init ni5010_probe1(struct net_device *dev, int ioaddr)
- {
- static unsigned version_printed;
- int i;
- unsigned int data = 0;
- int boguscount = 40;
- /*
- * This is no "official" probe method, I've rather tested which
- * probe works best with my seven NI5010 cards
- * (they have very different serial numbers)
- * Suggestions or failure reports are very, very welcome !
- * But I think it is a relatively good probe method
- * since it doesn't use any "outb"
- * It should be nearly 100% reliable !
- * well-known WARNING: this probe method (like many others)
- * will hang the system if a NE2000 card region is probed !
- *
- * - Andreas
- */
-
- PRINTK2((KERN_DEBUG "%s: entering ni5010_probe1(%#3x)n",
- dev->name, ioaddr));
- if (inb(ioaddr+0) == 0xff) return -ENODEV;
- while ( (rd_port(ioaddr) & rd_port(ioaddr) & rd_port(ioaddr) &
- rd_port(ioaddr) & rd_port(ioaddr) & rd_port(ioaddr)) != 0xff)
- {
- if (boguscount-- == 0) return -ENODEV;
- }
- PRINTK2((KERN_DEBUG "%s: I/O #1 passed!n", dev->name));
- for (i=0; i<32; i++)
- if ( (data = rd_port(ioaddr)) != 0xff) break;
- if (data==0xff) return -ENODEV;
- PRINTK2((KERN_DEBUG "%s: I/O #2 passed!n", dev->name));
- if ( (data == SA_ADDR0) &&
- (rd_port(ioaddr) == SA_ADDR1) &&
- (rd_port(ioaddr) == SA_ADDR2) ) {
- for (i=0; i<4; i++) rd_port(ioaddr);
- if ( (rd_port(ioaddr) != NI5010_MAGICVAL1) ||
- (rd_port(ioaddr) != NI5010_MAGICVAL2) ) {
- return -ENODEV;
- }
- } else return -ENODEV;
-
- PRINTK2((KERN_DEBUG "%s: I/O #3 passed!n", dev->name));
- if (NI5010_DEBUG && version_printed++ == 0)
- printk(KERN_INFO "%s", version);
- printk("NI5010 ethercard probe at 0x%x: ", ioaddr);
- dev->base_addr = ioaddr;
- for (i=0; i<6; i++) {
- outw(i, IE_GP);
- printk("%2.2x ", dev->dev_addr[i] = inb(IE_SAPROM));
- }
- PRINTK2((KERN_DEBUG "%s: I/O #4 passed!n", dev->name));
- #ifdef jumpered_interrupts
- if (dev->irq == 0xff)
- ;
- else if (dev->irq < 2) {
- PRINTK2((KERN_DEBUG "%s: I/O #5 passed!n", dev->name));
- autoirq_setup(0);
- trigger_irq(ioaddr);
- dev->irq = autoirq_report(2);
- PRINTK2((KERN_DEBUG "%s: I/O #6 passed!n", dev->name));
- if (dev->irq == 0) {
- printk(KERN_WARNING "%s: no IRQ found!n", dev->name);
- return -EAGAIN;
- }
- PRINTK2((KERN_DEBUG "%s: I/O #7 passed!n", dev->name));
- } else if (dev->irq == 2) {
- dev->irq = 9;
- }
- #endif /* jumpered_irq */
- PRINTK2((KERN_DEBUG "%s: I/O #9 passed!n", dev->name));
- /* DMA is not supported (yet?), so no use detecting it */
- if (dev->priv == NULL) {
- dev->priv = kmalloc(sizeof(struct ni5010_local), GFP_KERNEL|GFP_DMA);
- if (dev->priv == NULL) {
- printk(KERN_WARNING "%s: Failed to allocate private memoryn", dev->name);
- return -ENOMEM;
- }
- }
- PRINTK2((KERN_DEBUG "%s: I/O #10 passed!n", dev->name));
- /* get the size of the onboard receive buffer
- * higher addresses than bufsize are wrapped into real buffer
- * i.e. data for offs. 0x801 is written to 0x1 with a 2K onboard buffer
- */
- if (!bufsize_rcv) {
- outb(1, IE_MMODE); /* Put Rcv buffer on system bus */
- outw(0, IE_GP); /* Point GP at start of packet */
- outb(0, IE_RBUF); /* set buffer byte 0 to 0 */
- for (i = 1; i < 0xff; i++) {
- outw(i << 8, IE_GP); /* Point GP at packet size to be tested */
- outb(i, IE_RBUF);
- outw(0x0, IE_GP); /* Point GP at start of packet */
- data = inb(IE_RBUF);
- if (data == i) break;
- }
- bufsize_rcv = i << 8;
- outw(0, IE_GP); /* Point GP at start of packet */
- outb(0, IE_RBUF); /* set buffer byte 0 to 0 again */
- }
- printk("// bufsize rcv/xmt=%d/%dn", bufsize_rcv, NI5010_BUFSIZE);
- memset(dev->priv, 0, sizeof(struct ni5010_local));
- /* Grab the region so we can find another board if autoIRQ fails. */
- request_region(ioaddr, NI5010_IO_EXTENT, boardname);
-
- dev->open = ni5010_open;
- dev->stop = ni5010_close;
- dev->hard_start_xmit = ni5010_send_packet;
- dev->get_stats = ni5010_get_stats;
- dev->set_multicast_list = ni5010_set_multicast_list;
- dev->tx_timeout = ni5010_timeout;
- dev->watchdog_timeo = HZ/20;
- /* Fill in the fields of the device structure with ethernet values. */
- ether_setup(dev);
-
- dev->flags &= ~IFF_MULTICAST; /* Multicast doesn't work */
- /* Shut up the ni5010 */
- outb(0, EDLC_RMASK); /* Mask all receive interrupts */
- outb(0, EDLC_XMASK); /* Mask all xmit interrupts */
- outb(0xff, EDLC_RCLR); /* Kill all pending rcv interrupts */
- outb(0xff, EDLC_XCLR); /* Kill all pending xmt interrupts */
- printk(KERN_INFO "%s: NI5010 found at 0x%x, using IRQ %d", dev->name, ioaddr, dev->irq);
- if (dev->dma) printk(" & DMA %d", dev->dma);
- printk(".n");
- printk(KERN_INFO "Join the NI5010 driver development team!n");
- printk(KERN_INFO "Mail to a.mohr@mailto.de or jvbest@wi.leidenuniv.nln");
- return 0;
- }
- /*
- * Open/initialize the board. This is called (in the current kernel)
- * sometime after booting when the 'ifconfig' program is run.
- *
- * This routine should set everything up anew at each open, even
- * registers that "should" only need to be set once at boot, so that
- * there is non-reboot way to recover if something goes wrong.
- */
-
- static int ni5010_open(struct net_device *dev)
- {
- int ioaddr = dev->base_addr;
- int i;
- PRINTK2((KERN_DEBUG "%s: entering ni5010_open()n", dev->name));
-
- if (request_irq(dev->irq, &ni5010_interrupt, 0, boardname, dev)) {
- printk(KERN_WARNING "%s: Cannot get irq %#2xn", dev->name, dev->irq);
- return -EAGAIN;
- }
- PRINTK3((KERN_DEBUG "%s: passed open() #1n", dev->name));
- /*
- * Always allocate the DMA channel after the IRQ,
- * and clean up on failure.
- */
- #ifdef jumpered_dma
- if (request_dma(dev->dma, cardname)) {
- printk(KERN_WARNING "%s: Cannot get dma %#2xn", dev->name, dev->dma);
- free_irq(dev->irq, NULL);
- return -EAGAIN;
- }
- #endif /* jumpered_dma */
- PRINTK3((KERN_DEBUG "%s: passed open() #2n", dev->name));
- /* Reset the hardware here. Don't forget to set the station address. */
- outb(RS_RESET, EDLC_RESET); /* Hold up EDLC_RESET while configing board */
- outb(0, IE_RESET); /* Hardware reset of ni5010 board */
- outb(XMD_LBC, EDLC_XMODE); /* Only loopback xmits */
- PRINTK3((KERN_DEBUG "%s: passed open() #3n", dev->name));
- /* Set the station address */
- for(i = 0;i < 6; i++) {
- outb(dev->dev_addr[i], EDLC_ADDR + i);
- }
-
- PRINTK3((KERN_DEBUG "%s: Initialising ni5010n", dev->name));
- outb(0, EDLC_XMASK); /* No xmit interrupts for now */
- outb(XMD_IG_PAR | XMD_T_MODE | XMD_LBC, EDLC_XMODE);
- /* Normal packet xmit mode */
- outb(0xff, EDLC_XCLR); /* Clear all pending xmit interrupts */
- outb(RMD_BROADCAST, EDLC_RMODE);
- /* Receive broadcast and normal packets */
- reset_receiver(dev); /* Ready ni5010 for receiving packets */
-
- outb(0, EDLC_RESET); /* Un-reset the ni5010 */
-
- netif_start_queue(dev);
-
- if (NI5010_DEBUG) ni5010_show_registers(dev);
- PRINTK((KERN_DEBUG "%s: open successfuln", dev->name));
- return 0;
- }
- static void reset_receiver(struct net_device *dev)
- {
- int ioaddr = dev->base_addr;
-
- PRINTK3((KERN_DEBUG "%s: resetting receivern", dev->name));
- outw(0, IE_GP); /* Receive packet at start of buffer */
- outb(0xff, EDLC_RCLR); /* Clear all pending rcv interrupts */
- outb(0, IE_MMODE); /* Put EDLC to rcv buffer */
- outb(MM_EN_RCV, IE_MMODE); /* Enable rcv */
- outb(0xff, EDLC_RMASK); /* Enable all rcv interrupts */
- }
- static void ni5010_timeout(struct net_device *dev)
- {
- printk(KERN_WARNING "%s: transmit timed out, %s?n", dev->name,
- tx_done(dev) ? "IRQ conflict" : "network cable problem");
- /* Try to restart the adaptor. */
- /* FIXME: Give it a real kick here */
- chipset_init(dev, 1);
- dev->trans_start = jiffies;
- netif_wake_queue(dev);
- }
- static int ni5010_send_packet(struct sk_buff *skb, struct net_device *dev)
- {
- int length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
- PRINTK2((KERN_DEBUG "%s: entering ni5010_send_packetn", dev->name));
- /*
- * Block sending
- */
-
- netif_stop_queue(dev);
- hardware_send_packet(dev, (unsigned char *)skb->data, length);
- dev->trans_start = jiffies;
- dev_kfree_skb (skb);
- return 0;
- }
- /*
- * The typical workload of the driver:
- * Handle the network interface interrupts.
- */
- static void ni5010_interrupt(int irq, void *dev_id, struct pt_regs *regs)
- {
- struct net_device *dev = dev_id;
- struct ni5010_local *lp;
- int ioaddr, status;
- int xmit_was_error = 0;
- PRINTK2((KERN_DEBUG "%s: entering ni5010_interruptn", dev->name));
- ioaddr = dev->base_addr;
- lp = (struct ni5010_local *)dev->priv;
-
- status = inb(IE_ISTAT);
- PRINTK3((KERN_DEBUG "%s: IE_ISTAT = %#02xn", dev->name, status));
-
- if ((status & IS_R_INT) == 0) ni5010_rx(dev);
- if ((status & IS_X_INT) == 0) {
- xmit_was_error = process_xmt_interrupt(dev);
- }
- if ((status & IS_DMA_INT) == 0) {
- PRINTK((KERN_DEBUG "%s: DMA complete (?)n", dev->name));
- outb(0, IE_DMA_RST); /* Reset DMA int */
- }
- if (!xmit_was_error)
- reset_receiver(dev);
- return;
- }
- static void dump_packet(void *buf, int len)
- {
- int i;
-
- printk(KERN_DEBUG "Packet length = %#4xn", len);
- for (i = 0; i < len; i++){
- if (i % 16 == 0) printk(KERN_DEBUG "%#4.4x", i);
- if (i % 2 == 0) printk(" ");
- printk("%2.2x", ((unsigned char *)buf)[i]);
- if (i % 16 == 15) printk("n");
- }
- printk("n");
-
- return;
- }
- /* We have a good packet, get it out of the buffer. */
- static void ni5010_rx(struct net_device *dev)
- {
- struct ni5010_local *lp = (struct ni5010_local *)dev->priv;
- int ioaddr = dev->base_addr;
- unsigned char rcv_stat;
- struct sk_buff *skb;
-
- PRINTK2((KERN_DEBUG "%s: entering ni5010_rx()n", dev->name));
-
- rcv_stat = inb(EDLC_RSTAT);
- PRINTK3((KERN_DEBUG "%s: EDLC_RSTAT = %#2xn", dev->name, rcv_stat));
-
- if ( (rcv_stat & RS_VALID_BITS) != RS_PKT_OK) {
- PRINTK((KERN_INFO "%s: receive error.n", dev->name));
- lp->stats.rx_errors++;
- if (rcv_stat & RS_RUNT) lp->stats.rx_length_errors++;
- if (rcv_stat & RS_ALIGN) lp->stats.rx_frame_errors++;
- if (rcv_stat & RS_CRC_ERR) lp->stats.rx_crc_errors++;
- if (rcv_stat & RS_OFLW) lp->stats.rx_fifo_errors++;
- outb(0xff, EDLC_RCLR); /* Clear the interrupt */
- return;
- }
-
- outb(0xff, EDLC_RCLR); /* Clear the interrupt */
- lp->i_pkt_size = inw(IE_RCNT);
- if (lp->i_pkt_size > ETH_FRAME_LEN || lp->i_pkt_size < 10 ) {
- PRINTK((KERN_DEBUG "%s: Packet size error, packet size = %#4.4xn",
- dev->name, lp->i_pkt_size));
- lp->stats.rx_errors++;
- lp->stats.rx_length_errors++;
- return;
- }
- /* Malloc up new buffer. */
- skb = dev_alloc_skb(lp->i_pkt_size + 3);
- if (skb == NULL) {
- printk(KERN_WARNING "%s: Memory squeeze, dropping packet.n", dev->name);
- lp->stats.rx_dropped++;
- return;
- }
-
- skb->dev = dev;
- skb_reserve(skb, 2);
-
- /* Read packet into buffer */
- outb(MM_MUX, IE_MMODE); /* Rcv buffer to system bus */
- outw(0, IE_GP); /* Seek to beginning of packet */
- insb(IE_RBUF, skb_put(skb, lp->i_pkt_size), lp->i_pkt_size);
-
- if (NI5010_DEBUG >= 4)
- dump_packet(skb->data, skb->len);
-
- skb->protocol = eth_type_trans(skb,dev);
- netif_rx(skb);
- dev->last_rx = jiffies;
- lp->stats.rx_packets++;
- lp->stats.rx_bytes += lp->i_pkt_size;
- PRINTK2((KERN_DEBUG "%s: Received packet, size=%#4.4xn",
- dev->name, lp->i_pkt_size));
-
- }
- static int process_xmt_interrupt(struct net_device *dev)
- {
- struct ni5010_local *lp = (struct ni5010_local *)dev->priv;
- int ioaddr = dev->base_addr;
- int xmit_stat;
- PRINTK2((KERN_DEBUG "%s: entering process_xmt_interruptn", dev->name));
- xmit_stat = inb(EDLC_XSTAT);
- PRINTK3((KERN_DEBUG "%s: EDLC_XSTAT = %2.2xn", dev->name, xmit_stat));
-
- outb(0, EDLC_XMASK); /* Disable xmit IRQ's */
- outb(0xff, EDLC_XCLR); /* Clear all pending xmit IRQ's */
-
- if (xmit_stat & XS_COLL){
- PRINTK((KERN_DEBUG "%s: collision detected, retransmittingn",
- dev->name));
- outw(NI5010_BUFSIZE - lp->o_pkt_size, IE_GP);
- /* outb(0, IE_MMODE); */ /* xmt buf on sysbus FIXME: needed ? */
- outb(MM_EN_XMT | MM_MUX, IE_MMODE);
- outb(XM_ALL, EDLC_XMASK); /* Enable xmt IRQ's */
- lp->stats.collisions++;
- return 1;
- }
- /* FIXME: handle other xmt error conditions */
- lp->stats.tx_packets++;
- lp->stats.tx_bytes += lp->o_pkt_size;
- netif_wake_queue(dev);
-
- PRINTK2((KERN_DEBUG "%s: sent packet, size=%#4.4xn",
- dev->name, lp->o_pkt_size));
- return 0;
- }
- /* The inverse routine to ni5010_open(). */
- static int ni5010_close(struct net_device *dev)
- {
- int ioaddr = dev->base_addr;
- PRINTK2((KERN_DEBUG "%s: entering ni5010_closen", dev->name));
- #ifdef jumpered_interrupts
- free_irq(dev->irq, NULL);
- #endif
- /* Put card in held-RESET state */
- outb(0, IE_MMODE);
- outb(RS_RESET, EDLC_RESET);
- netif_stop_queue(dev);
-
- PRINTK((KERN_DEBUG "%s: %s closed downn", dev->name, boardname));
- return 0;
- }
- /* Get the current statistics. This may be called with the card open or
- closed. */
- static struct net_device_stats *ni5010_get_stats(struct net_device *dev)
- {
- struct ni5010_local *lp = (struct ni5010_local *)dev->priv;
- PRINTK2((KERN_DEBUG "%s: entering ni5010_get_statsn", dev->name));
-
- if (NI5010_DEBUG) ni5010_show_registers(dev);
-
- /* cli(); */
- /* Update the statistics from the device registers. */
- /* We do this in the interrupt handler */
- /* sti(); */
- 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 ni5010_set_multicast_list(struct net_device *dev)
- {
- short ioaddr = dev->base_addr;
- PRINTK2((KERN_DEBUG "%s: entering set_multicast_listn", dev->name));
- if (dev->flags&IFF_PROMISC || dev->flags&IFF_ALLMULTI) {
- dev->flags |= IFF_PROMISC;
- outb(RMD_PROMISC, EDLC_RMODE); /* Enable promiscuous mode */
- PRINTK((KERN_DEBUG "%s: Entering promiscuous moden", dev->name));
- } else if (dev->mc_list) {
- /* Sorry, multicast not supported */
- PRINTK((KERN_DEBUG "%s: No multicast, entering broadcast moden", dev->name));
- outb(RMD_BROADCAST, EDLC_RMODE);
- } else {
- PRINTK((KERN_DEBUG "%s: Entering broadcast moden", dev->name));
- outb(RMD_BROADCAST, EDLC_RMODE); /* Disable promiscuous mode, use normal mode */
- }
- }
- static void hardware_send_packet(struct net_device *dev, char *buf, int length)
- {
- struct ni5010_local *lp = (struct ni5010_local *)dev->priv;
- int ioaddr = dev->base_addr;
- unsigned long flags;
- unsigned int buf_offs;
- PRINTK2((KERN_DEBUG "%s: entering hardware_send_packetn", dev->name));
-
- if (length > ETH_FRAME_LEN) {
- PRINTK((KERN_WARNING "%s: packet too large, not possiblen",
- dev->name));
- return;
- }
- if (NI5010_DEBUG) ni5010_show_registers(dev);
- if (inb(IE_ISTAT) & IS_EN_XMT) {
- PRINTK((KERN_WARNING "%s: sending packet while already transmitting, not possiblen",
- dev->name));
- return;
- }
-
- if (NI5010_DEBUG > 3) dump_packet(buf, length);
- buf_offs = NI5010_BUFSIZE - length;
- lp->o_pkt_size = length;
- save_flags(flags);
- cli();
- outb(0, EDLC_RMASK); /* Mask all receive interrupts */
- outb(0, IE_MMODE); /* Put Xmit buffer on system bus */
- outb(0xff, EDLC_RCLR); /* Clear out pending rcv interrupts */
- outw(buf_offs, IE_GP); /* Point GP at start of packet */
- outsb(IE_XBUF, buf, length); /* Put data in buffer */
- outw(buf_offs, IE_GP); /* Rewrite where packet starts */
- /* should work without that outb() (Crynwr used it) */
- /*outb(MM_MUX, IE_MMODE);*/ /* Xmt buffer to EDLC bus */
- outb(MM_EN_XMT | MM_MUX, IE_MMODE); /* Begin transmission */
- outb(XM_ALL, EDLC_XMASK); /* Cause interrupt after completion or fail */
- restore_flags(flags);
- netif_wake_queue(dev);
-
- if (NI5010_DEBUG) ni5010_show_registers(dev);
- }
- static void chipset_init(struct net_device *dev, int startp)
- {
- /* FIXME: Move some stuff here */
- PRINTK3((KERN_DEBUG "%s: doing NOTHING in chipset_initn", dev->name));
- }
- static void ni5010_show_registers(struct net_device *dev)
- {
- int ioaddr = dev->base_addr;
-
- PRINTK3((KERN_DEBUG "%s: XSTAT %#2.2xn", dev->name, inb(EDLC_XSTAT)));
- PRINTK3((KERN_DEBUG "%s: XMASK %#2.2xn", dev->name, inb(EDLC_XMASK)));
- PRINTK3((KERN_DEBUG "%s: RSTAT %#2.2xn", dev->name, inb(EDLC_RSTAT)));
- PRINTK3((KERN_DEBUG "%s: RMASK %#2.2xn", dev->name, inb(EDLC_RMASK)));
- PRINTK3((KERN_DEBUG "%s: RMODE %#2.2xn", dev->name, inb(EDLC_RMODE)));
- PRINTK3((KERN_DEBUG "%s: XMODE %#2.2xn", dev->name, inb(EDLC_XMODE)));
- PRINTK3((KERN_DEBUG "%s: ISTAT %#2.2xn", dev->name, inb(IE_ISTAT)));
- }
- #ifdef MODULE
- static struct net_device dev_ni5010;
- static int io;
- static int irq;
- MODULE_PARM(io, "i");
- MODULE_PARM(irq, "i");
- MODULE_PARM_DESC(io, "ni5010 I/O base address");
- MODULE_PARM_DESC(irq, "ni5010 IRQ number");
- int init_module(void)
- {
- int result;
-
- PRINTK2((KERN_DEBUG "%s: entering init_modulen", boardname));
- /*
- if(io <= 0 || irq == 0){
- printk(KERN_WARNING "%s: Autoprobing not allowed for modules.n", boardname);
- printk(KERN_WARNING "%s: Set symbols 'io' and 'irq'n", boardname);
- return -EINVAL;
- }
- */
- if (io <= 0){
- printk(KERN_WARNING "%s: Autoprobing for modules is hazardous, trying anyway..n", boardname);
- }
- PRINTK2((KERN_DEBUG "%s: init_module irq=%#2x, io=%#3xn", boardname, irq, io));
- dev_ni5010.irq=irq;
- dev_ni5010.base_addr=io;
- dev_ni5010.init=ni5010_probe;
- if ((result = register_netdev(&dev_ni5010)) != 0) {
- PRINTK((KERN_WARNING "%s: register_netdev returned %d.n",
- boardname, result));
- return -EIO;
- }
- return 0;
- }
- void
- cleanup_module(void)
- {
- PRINTK2((KERN_DEBUG "%s: entering cleanup_modulen", boardname));
- unregister_netdev(&dev_ni5010);
- release_region(dev_ni5010.base_addr, NI5010_IO_EXTENT);
- if (dev_ni5010.priv != NULL){
- kfree(dev_ni5010.priv);
- dev_ni5010.priv = NULL;
- }
- }
- #endif /* MODULE */
- MODULE_LICENSE("GPL");
- /*
- * Local variables:
- * compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c ni5010.c"
- * version-control: t
- * kept-new-versions: 5
- * tab-width: 4
- * End:
- */