X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fnet%2Fni5010.c;h=8be0d030d6f414f05d7bba2de16deff9bac686a7;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=2ab01a5d1d229a0b8c16263055b7148f6a0f9a62;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git diff --git a/drivers/net/ni5010.c b/drivers/net/ni5010.c index 2ab01a5d1..8be0d030d 100644 --- a/drivers/net/ni5010.c +++ b/drivers/net/ni5010.c @@ -1,17 +1,12 @@ /* ni5010.c: A network driver for the MiCom-Interlan NI5010 ethercard. * - * Copyright 1996,1997 Jan-Pascal van Best and Andreas Mohr. + * Copyright 1996,1997,2006 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 + * janpascal@vanbest.org andi@lisas.de * * Sources: * Donald Becker's "skeleton.c" @@ -27,8 +22,9 @@ * 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) + * 060611 v1.02: slight cleanup: email addresses, driver modernization. * Bugs: - * - None known... + * - not SMP-safe (no locking of I/O accesses) * - Note that you have to patch ifconfig for the new /proc/net/dev * format. It gives incorrect stats otherwise. * @@ -39,15 +35,15 @@ * 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 + * Implement DMA (Again, is this useful? Some docs say DMA is * slower than programmed I/O) * * Compile with: * gcc -O2 -fomit-frame-pointer -m486 -D__KERNEL__ \ - * -DMODULE -c ni5010.c + * -DMODULE -c ni5010.c * * Insert with e.g.: - * insmod ni5010.o io=0x300 irq=5 + * insmod ni5010.ko io=0x300 irq=5 */ #include @@ -69,15 +65,15 @@ #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"; - +static const char boardname[] = "NI5010"; +static char version[] __initdata = + "ni5010.c: v1.02 20060611 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 */ +#define JUMPERED_INTERRUPTS /* IRQ line jumpered on board */ +#undef JUMPERED_DMA /* No DMA used */ #undef FULL_IODETECT /* Only detect in portlist */ #ifndef FULL_IODETECT @@ -103,7 +99,7 @@ struct ni5010_local { 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 irqreturn_t ni5010_interrupt(int irq, void *dev_id); static void ni5010_rx(struct net_device *dev); static void ni5010_timeout(struct net_device *dev); static int ni5010_close(struct net_device *dev); @@ -232,7 +228,7 @@ static int __init ni5010_probe1(struct net_device *dev, int ioaddr) * - Andreas */ - PRINTK2((KERN_DEBUG "%s: entering ni5010_probe1(%#3x)\n", + PRINTK2((KERN_DEBUG "%s: entering ni5010_probe1(%#3x)\n", dev->name, ioaddr)); if (inb(ioaddr+0) == 0xff) @@ -281,7 +277,7 @@ static int __init ni5010_probe1(struct net_device *dev, int ioaddr) PRINTK2((KERN_DEBUG "%s: I/O #4 passed!\n", dev->name)); -#ifdef jumpered_interrupts +#ifdef JUMPERED_INTERRUPTS if (dev->irq == 0xff) ; else if (dev->irq < 2) { @@ -305,7 +301,7 @@ static int __init ni5010_probe1(struct net_device *dev, int ioaddr) } else if (dev->irq == 2) { dev->irq = 9; } -#endif /* jumpered_irq */ +#endif /* JUMPERED_INTERRUPTS */ PRINTK2((KERN_DEBUG "%s: I/O #9 passed!\n", dev->name)); /* DMA is not supported (yet?), so no use detecting it */ @@ -334,9 +330,9 @@ static int __init ni5010_probe1(struct net_device *dev, int ioaddr) 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); + 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; @@ -354,33 +350,31 @@ static int __init ni5010_probe1(struct net_device *dev, int ioaddr) 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); + 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. + * there is a 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)); - + 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; @@ -390,13 +384,13 @@ static int ni5010_open(struct net_device *dev) * Always allocate the DMA channel after the IRQ, * and clean up on failure. */ -#ifdef jumpered_dma +#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 */ +#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. */ @@ -410,21 +404,21 @@ static int ni5010_open(struct net_device *dev) for(i = 0;i < 6; i++) { outb(dev->dev_addr[i], EDLC_ADDR + i); } - - PRINTK3((KERN_DEBUG "%s: Initialising ni5010\n", dev->name)); + + 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); + 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); + + if (NI5010_DEBUG) ni5010_show_registers(dev); PRINTK((KERN_DEBUG "%s: open successful\n", dev->name)); return 0; @@ -433,7 +427,7 @@ static int ni5010_open(struct net_device *dev) 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 */ @@ -459,10 +453,10 @@ static int ni5010_send_packet(struct sk_buff *skb, struct net_device *dev) 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; @@ -470,11 +464,11 @@ static int ni5010_send_packet(struct sk_buff *skb, struct net_device *dev) return 0; } -/* +/* * The typical workload of the driver: - * Handle the network interface interrupts. + * Handle the network interface interrupts. */ -static irqreturn_t ni5010_interrupt(int irq, void *dev_id, struct pt_regs *regs) +static irqreturn_t ni5010_interrupt(int irq, void *dev_id) { struct net_device *dev = dev_id; struct ni5010_local *lp; @@ -485,11 +479,11 @@ static irqreturn_t ni5010_interrupt(int irq, void *dev_id, struct pt_regs *regs) ioaddr = dev->base_addr; lp = netdev_priv(dev); - + spin_lock(&lp->lock); - status = inb(IE_ISTAT); + 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) { @@ -501,8 +495,8 @@ static irqreturn_t ni5010_interrupt(int irq, void *dev_id, struct pt_regs *regs) outb(0, IE_DMA_RST); /* Reset DMA int */ } - if (!xmit_was_error) - reset_receiver(dev); + if (!xmit_was_error) + reset_receiver(dev); spin_unlock(&lp->lock); return IRQ_HANDLED; } @@ -511,7 +505,7 @@ static irqreturn_t ni5010_interrupt(int irq, void *dev_id, struct pt_regs *regs) 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); @@ -520,7 +514,7 @@ static void dump_packet(void *buf, int len) if (i % 16 == 15) printk("\n"); } printk("\n"); - + return; } @@ -532,12 +526,12 @@ static void ni5010_rx(struct net_device *dev) unsigned char rcv_stat; struct sk_buff *skb; int i_pkt_size; - - PRINTK2((KERN_DEBUG "%s: entering ni5010_rx()\n", dev->name)); - + + 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)); - + 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++; @@ -548,12 +542,12 @@ static void ni5010_rx(struct net_device *dev) 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", + 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++; @@ -567,27 +561,27 @@ static void ni5010_rx(struct net_device *dev) 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); - + 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", + PRINTK2((KERN_DEBUG "%s: Received packet, size=%#4.4x\n", dev->name, i_pkt_size)); - + } static int process_xmt_interrupt(struct net_device *dev) @@ -600,12 +594,12 @@ static int process_xmt_interrupt(struct net_device *dev) 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", + 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 ? */ @@ -620,8 +614,8 @@ static int process_xmt_interrupt(struct net_device *dev) 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", + + PRINTK2((KERN_DEBUG "%s: sent packet, size=%#4.4x\n", dev->name, lp->o_pkt_size)); return 0; @@ -633,7 +627,7 @@ 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 +#ifdef JUMPERED_INTERRUPTS free_irq(dev->irq, NULL); #endif /* Put card in held-RESET state */ @@ -641,7 +635,7 @@ static int ni5010_close(struct net_device *dev) outb(RS_RESET, EDLC_RESET); netif_stop_queue(dev); - + PRINTK((KERN_DEBUG "%s: %s closed down\n", dev->name, boardname)); return 0; @@ -654,9 +648,9 @@ 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 */ @@ -673,7 +667,7 @@ static struct net_device_stats *ni5010_get_stats(struct net_device *dev) */ static void ni5010_set_multicast_list(struct net_device *dev) { - short ioaddr = dev->base_addr; + short ioaddr = dev->base_addr; PRINTK2((KERN_DEBUG "%s: entering set_multicast_list\n", dev->name)); @@ -699,7 +693,7 @@ static void hardware_send_packet(struct net_device *dev, char *buf, int length, 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)); @@ -709,11 +703,11 @@ static void hardware_send_packet(struct net_device *dev, char *buf, int length, 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", + 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; @@ -729,7 +723,7 @@ static void hardware_send_packet(struct net_device *dev, char *buf, int length, 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) */ @@ -740,8 +734,8 @@ static void hardware_send_packet(struct net_device *dev, char *buf, int length, spin_unlock_irqrestore(&lp->lock, flags); netif_wake_queue(dev); - - if (NI5010_DEBUG) ni5010_show_registers(dev); + + if (NI5010_DEBUG) ni5010_show_registers(dev); } static void chipset_init(struct net_device *dev, int startp) @@ -753,7 +747,7 @@ static void chipset_init(struct net_device *dev, int startp) 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))); @@ -766,12 +760,12 @@ static void ni5010_show_registers(struct net_device *dev) #ifdef MODULE static struct net_device *dev_ni5010; -MODULE_PARM(io, "i"); -MODULE_PARM(irq, "i"); +module_param(io, int, 0); +module_param(irq, int, 0); MODULE_PARM_DESC(io, "ni5010 I/O base address"); MODULE_PARM_DESC(irq, "ni5010 IRQ number"); -int init_module(void) +static int __init ni5010_init_module(void) { PRINTK2((KERN_DEBUG "%s: entering init_module\n", boardname)); /* @@ -792,13 +786,15 @@ int init_module(void) return 0; } -void cleanup_module(void) +static void __exit ni5010_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); } +module_init(ni5010_init_module); +module_exit(ni5010_cleanup_module); #endif /* MODULE */ MODULE_LICENSE("GPL");