/* 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 <linux/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 Mohr\n"; /* 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 ports[] __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; spinlock_t lock; }; /* Index to functions, as function prototypes. */ 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 irqreturn_t 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, int pad); 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); static int io; static int irq; struct net_device * __init ni5010_probe(int unit) { struct net_device *dev = alloc_etherdev(sizeof(struct ni5010_local)); int *port; int err = 0; if (!dev) return ERR_PTR(-ENOMEM); if (unit >= 0) { sprintf(dev->name, "eth%d", unit); netdev_boot_setup_check(dev); io = dev->base_addr; irq = dev->irq; } PRINTK2((KERN_DEBUG "%s: Entering ni5010_probe\n", dev->name)); SET_MODULE_OWNER(dev); if (io > 0x1ff) { /* Check a single specified location. */ err = ni5010_probe1(dev, io); } else if (io != 0) { /* Don't probe at all. */ err = -ENXIO; } else { #ifdef FULL_IODETECT for (io=0x200; io<0x400 && ni5010_probe1(dev, io) ; io+=0x20) ; if (io == 0x400) err = -ENODEV; #else for (port = ports; *port && ni5010_probe1(dev, *port); port++) ; if (!*port) err = -ENODEV; #endif /* FULL_IODETECT */ } if (err) goto out; err = register_netdev(dev); if (err) goto out1; return dev; out1: release_region(dev->base_addr, NI5010_IO_EXTENT); out: free_netdev(dev); return ERR_PTR(err); } 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; struct ni5010_local *lp; int i; unsigned int data = 0; int boguscount = 40; int err = -ENODEV; dev->base_addr = ioaddr; dev->irq = irq; if (!request_region(ioaddr, NI5010_IO_EXTENT, boardname)) return -EBUSY; /* * 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) goto out; while ( (rd_port(ioaddr) & rd_port(ioaddr) & rd_port(ioaddr) & rd_port(ioaddr) & rd_port(ioaddr) & rd_port(ioaddr)) != 0xff) { if (boguscount-- == 0) goto out; } 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) goto out; 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)) goto out; for (i=0; i<4; i++) rd_port(ioaddr); if ( (rd_port(ioaddr) != NI5010_MAGICVAL1) || (rd_port(ioaddr) != NI5010_MAGICVAL2) ) goto out; 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) { unsigned long irq_mask; PRINTK2((KERN_DEBUG "%s: I/O #5 passed!\n", dev->name)); irq_mask = probe_irq_on(); trigger_irq(ioaddr); mdelay(20); dev->irq = probe_irq_off(irq_mask); PRINTK2((KERN_DEBUG "%s: I/O #6 passed!\n", dev->name)); if (dev->irq == 0) { err = -EAGAIN; printk(KERN_WARNING "%s: no IRQ found!\n", dev->name); goto out; } 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 */ lp = netdev_priv(dev); spin_lock_init(&lp->lock); 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/%d\n", bufsize_rcv, NI5010_BUFSIZE); memset(dev->priv, 0, sizeof(struct ni5010_local)); 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; 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.nl\n"); return 0; out: release_region(dev->base_addr, NI5010_IO_EXTENT); return err; } /* * 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 %#2x\n", dev->name, dev->irq); return -EAGAIN; } PRINTK3((KERN_DEBUG "%s: passed open() #1\n", 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 %#2x\n", dev->name, dev->dma); free_irq(dev->irq, NULL); return -EAGAIN; } #endif /* jumpered_dma */ PRINTK3((KERN_DEBUG "%s: passed open() #2\n", 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() #3\n", 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 ni5010\n", 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 successful\n", dev->name)); return 0; } static void reset_receiver(struct net_device *dev) { int ioaddr = dev->base_addr; PRINTK3((KERN_DEBUG "%s: resetting receiver\n", 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_packet\n", dev->name)); /* * Block sending */ netif_stop_queue(dev); hardware_send_packet(dev, (unsigned char *)skb->data, skb->len, length-skb->len); dev->trans_start = jiffies; dev_kfree_skb (skb); return 0; } /* * The typical workload of the driver: * Handle the network interface interrupts. */ static irqreturn_t 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_interrupt\n", dev->name)); ioaddr = dev->base_addr; lp = netdev_priv(dev); spin_lock(&lp->lock); status = inb(IE_ISTAT); PRINTK3((KERN_DEBUG "%s: IE_ISTAT = %#02x\n", 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); spin_unlock(&lp->lock); return IRQ_HANDLED; } static void dump_packet(void *buf, int len) { int i; printk(KERN_DEBUG "Packet length = %#4x\n", 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 = netdev_priv(dev); int ioaddr = dev->base_addr; unsigned char rcv_stat; struct sk_buff *skb; int i_pkt_size; PRINTK2((KERN_DEBUG "%s: entering ni5010_rx()\n", dev->name)); rcv_stat = inb(EDLC_RSTAT); PRINTK3((KERN_DEBUG "%s: EDLC_RSTAT = %#2x\n", 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 */ i_pkt_size = inw(IE_RCNT); if (i_pkt_size > ETH_FRAME_LEN || i_pkt_size < 10 ) { PRINTK((KERN_DEBUG "%s: Packet size error, packet size = %#4.4x\n", dev->name, i_pkt_size)); lp->stats.rx_errors++; lp->stats.rx_length_errors++; return; } /* Malloc up new buffer. */ skb = dev_alloc_skb(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, i_pkt_size), 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 += i_pkt_size; PRINTK2((KERN_DEBUG "%s: Received packet, size=%#4.4x\n", dev->name, i_pkt_size)); } static int process_xmt_interrupt(struct net_device *dev) { struct ni5010_local *lp = netdev_priv(dev); int ioaddr = dev->base_addr; int xmit_stat; PRINTK2((KERN_DEBUG "%s: entering process_xmt_interrupt\n", dev->name)); xmit_stat = inb(EDLC_XSTAT); PRINTK3((KERN_DEBUG "%s: EDLC_XSTAT = %2.2x\n", 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, retransmitting\n", 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=%#4.4x\n", 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_close\n", 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 down\n", 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 = netdev_priv(dev); PRINTK2((KERN_DEBUG "%s: entering ni5010_get_stats\n", 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_list\n", 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 mode\n", dev->name)); } else if (dev->mc_list) { /* Sorry, multicast not supported */ PRINTK((KERN_DEBUG "%s: No multicast, entering broadcast mode\n", dev->name)); outb(RMD_BROADCAST, EDLC_RMODE); } else { PRINTK((KERN_DEBUG "%s: Entering broadcast mode\n", 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, int pad) { struct ni5010_local *lp = netdev_priv(dev); int ioaddr = dev->base_addr; unsigned long flags; unsigned int buf_offs; PRINTK2((KERN_DEBUG "%s: entering hardware_send_packet\n", dev->name)); if (length > ETH_FRAME_LEN) { PRINTK((KERN_WARNING "%s: packet too large, not possible\n", 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 possible\n", dev->name)); return; } if (NI5010_DEBUG > 3) dump_packet(buf, length); buf_offs = NI5010_BUFSIZE - length - pad; spin_lock_irqsave(&lp->lock, flags); lp->o_pkt_size = length + pad; 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 */ while(pad--) outb(0, IE_XBUF); 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 */ spin_unlock_irqrestore(&lp->lock, 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_init\n", dev->name)); } static void ni5010_show_registers(struct net_device *dev) { int ioaddr = dev->base_addr; PRINTK3((KERN_DEBUG "%s: XSTAT %#2.2x\n", dev->name, inb(EDLC_XSTAT))); PRINTK3((KERN_DEBUG "%s: XMASK %#2.2x\n", dev->name, inb(EDLC_XMASK))); PRINTK3((KERN_DEBUG "%s: RSTAT %#2.2x\n", dev->name, inb(EDLC_RSTAT))); PRINTK3((KERN_DEBUG "%s: RMASK %#2.2x\n", dev->name, inb(EDLC_RMASK))); PRINTK3((KERN_DEBUG "%s: RMODE %#2.2x\n", dev->name, inb(EDLC_RMODE))); PRINTK3((KERN_DEBUG "%s: XMODE %#2.2x\n", dev->name, inb(EDLC_XMODE))); PRINTK3((KERN_DEBUG "%s: ISTAT %#2.2x\n", dev->name, inb(IE_ISTAT))); } #ifdef MODULE static struct net_device *dev_ni5010; 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) { PRINTK2((KERN_DEBUG "%s: entering init_module\n", 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=%#3x\n", boardname, irq, io)); dev_ni5010 = ni5010_probe(-1); if (IS_ERR(dev_ni5010)) return PTR_ERR(dev_ni5010); return 0; } void cleanup_module(void) { PRINTK2((KERN_DEBUG "%s: entering cleanup_module\n", boardname)); unregister_netdev(dev_ni5010); release_region(dev_ni5010->base_addr, NI5010_IO_EXTENT); free_netdev(dev_ni5010); } #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: */