/* 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"
* 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.
*
* 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 <linux/module.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";
-
+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
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);
* - 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)
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) {
} 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 */
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;
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;
* 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. */
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;
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 */
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;
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;
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) {
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;
}
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 % 16 == 15) printk("\n");
}
printk("\n");
-
+
return;
}
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++;
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++;
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)
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 ? */
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;
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 */
outb(RS_RESET, EDLC_RESET);
netif_stop_queue(dev);
-
+
PRINTK((KERN_DEBUG "%s: %s closed down\n", dev->name, boardname));
return 0;
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 */
*/
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));
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));
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;
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) */
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)
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)));
#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));
/*
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");
git://git.onelab.eu / linux-2.6.git / blobdiff