/*
|
* Linux ARCnet driver - COM90xx chipset (memory-mapped buffers)
|
*
|
* Written 1994-1999 by Avery Pennarun.
|
* Written 1999 by Martin Mares <mj@ucw.cz>.
|
* Derived from skeleton.c by Donald Becker.
|
*
|
* Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
|
* for sponsoring the further development of this driver.
|
*
|
* **********************
|
*
|
* The original copyright of skeleton.c was as follows:
|
*
|
* skeleton.c Written 1993 by Donald Becker.
|
* Copyright 1993 United States Government as represented by the
|
* Director, National Security Agency. This software may only be used
|
* and distributed according to the terms of the GNU General Public License as
|
* modified by SRC, incorporated herein by reference.
|
*
|
* **********************
|
*
|
* For more details, see drivers/net/arcnet.c
|
*
|
* **********************
|
*/
|
|
#define pr_fmt(fmt) "arcnet:" KBUILD_MODNAME ": " fmt
|
|
#include <linux/module.h>
|
#include <linux/moduleparam.h>
|
#include <linux/init.h>
|
#include <linux/interrupt.h>
|
#include <linux/ioport.h>
|
#include <linux/delay.h>
|
#include <linux/netdevice.h>
|
#include <linux/slab.h>
|
#include <linux/io.h>
|
|
#include "arcdevice.h"
|
#include "com9026.h"
|
|
/* Define this to speed up the autoprobe by assuming if only one io port and
|
* shmem are left in the list at Stage 5, they must correspond to each
|
* other.
|
*
|
* This is undefined by default because it might not always be true, and the
|
* extra check makes the autoprobe even more careful. Speed demons can turn
|
* it on - I think it should be fine if you only have one ARCnet card
|
* installed.
|
*
|
* If no ARCnet cards are installed, this delay never happens anyway and thus
|
* the option has no effect.
|
*/
|
#undef FAST_PROBE
|
|
/* Internal function declarations */
|
static int com90xx_found(int ioaddr, int airq, u_long shmem, void __iomem *);
|
static void com90xx_command(struct net_device *dev, int command);
|
static int com90xx_status(struct net_device *dev);
|
static void com90xx_setmask(struct net_device *dev, int mask);
|
static int com90xx_reset(struct net_device *dev, int really_reset);
|
static void com90xx_copy_to_card(struct net_device *dev, int bufnum, int offset,
|
void *buf, int count);
|
static void com90xx_copy_from_card(struct net_device *dev, int bufnum,
|
int offset, void *buf, int count);
|
|
/* Known ARCnet cards */
|
|
static struct net_device *cards[16];
|
static int numcards;
|
|
/* Handy defines for ARCnet specific stuff */
|
|
/* The number of low I/O ports used by the card */
|
#define ARCNET_TOTAL_SIZE 16
|
|
/* Amount of I/O memory used by the card */
|
#define BUFFER_SIZE (512)
|
#define MIRROR_SIZE (BUFFER_SIZE * 4)
|
|
static int com90xx_skip_probe __initdata = 0;
|
|
/* Module parameters */
|
|
static int io; /* use the insmod io= irq= shmem= options */
|
static int irq;
|
static int shmem;
|
static char device[9]; /* use eg. device=arc1 to change name */
|
|
module_param_hw(io, int, ioport, 0);
|
module_param_hw(irq, int, irq, 0);
|
module_param(shmem, int, 0);
|
module_param_string(device, device, sizeof(device), 0);
|
|
static void __init com90xx_probe(void)
|
{
|
int count, status, ioaddr, numprint, airq, openparen = 0;
|
unsigned long airqmask;
|
int ports[(0x3f0 - 0x200) / 16 + 1] = { 0 };
|
unsigned long *shmems;
|
void __iomem **iomem;
|
int numports, numshmems, *port;
|
u_long *p;
|
int index;
|
|
if (!io && !irq && !shmem && !*device && com90xx_skip_probe)
|
return;
|
|
shmems = kzalloc(((0x100000 - 0xa0000) / 0x800) * sizeof(unsigned long),
|
GFP_KERNEL);
|
if (!shmems)
|
return;
|
iomem = kzalloc(((0x100000 - 0xa0000) / 0x800) * sizeof(void __iomem *),
|
GFP_KERNEL);
|
if (!iomem) {
|
kfree(shmems);
|
return;
|
}
|
|
if (BUGLVL(D_NORMAL))
|
pr_info("%s\n", "COM90xx chipset support");
|
|
/* set up the arrays where we'll store the possible probe addresses */
|
numports = numshmems = 0;
|
if (io)
|
ports[numports++] = io;
|
else
|
for (count = 0x200; count <= 0x3f0; count += 16)
|
ports[numports++] = count;
|
if (shmem)
|
shmems[numshmems++] = shmem;
|
else
|
for (count = 0xA0000; count <= 0xFF800; count += 2048)
|
shmems[numshmems++] = count;
|
|
/* Stage 1: abandon any reserved ports, or ones with status==0xFF
|
* (empty), and reset any others by reading the reset port.
|
*/
|
numprint = -1;
|
for (port = &ports[0]; port - ports < numports; port++) {
|
numprint++;
|
numprint %= 8;
|
if (!numprint) {
|
arc_cont(D_INIT, "\n");
|
arc_cont(D_INIT, "S1: ");
|
}
|
arc_cont(D_INIT, "%Xh ", *port);
|
|
ioaddr = *port;
|
|
if (!request_region(*port, ARCNET_TOTAL_SIZE,
|
"arcnet (90xx)")) {
|
arc_cont(D_INIT_REASONS, "(request_region)\n");
|
arc_cont(D_INIT_REASONS, "S1: ");
|
if (BUGLVL(D_INIT_REASONS))
|
numprint = 0;
|
*port-- = ports[--numports];
|
continue;
|
}
|
if (arcnet_inb(ioaddr, COM9026_REG_R_STATUS) == 0xFF) {
|
arc_cont(D_INIT_REASONS, "(empty)\n");
|
arc_cont(D_INIT_REASONS, "S1: ");
|
if (BUGLVL(D_INIT_REASONS))
|
numprint = 0;
|
release_region(*port, ARCNET_TOTAL_SIZE);
|
*port-- = ports[--numports];
|
continue;
|
}
|
/* begin resetting card */
|
arcnet_inb(ioaddr, COM9026_REG_R_RESET);
|
|
arc_cont(D_INIT_REASONS, "\n");
|
arc_cont(D_INIT_REASONS, "S1: ");
|
if (BUGLVL(D_INIT_REASONS))
|
numprint = 0;
|
}
|
arc_cont(D_INIT, "\n");
|
|
if (!numports) {
|
arc_cont(D_NORMAL, "S1: No ARCnet cards found.\n");
|
kfree(shmems);
|
kfree(iomem);
|
return;
|
}
|
/* Stage 2: we have now reset any possible ARCnet cards, so we can't
|
* do anything until they finish. If D_INIT, print the list of
|
* cards that are left.
|
*/
|
numprint = -1;
|
for (port = &ports[0]; port < ports + numports; port++) {
|
numprint++;
|
numprint %= 8;
|
if (!numprint) {
|
arc_cont(D_INIT, "\n");
|
arc_cont(D_INIT, "S2: ");
|
}
|
arc_cont(D_INIT, "%Xh ", *port);
|
}
|
arc_cont(D_INIT, "\n");
|
mdelay(RESETtime);
|
|
/* Stage 3: abandon any shmem addresses that don't have the signature
|
* 0xD1 byte in the right place, or are read-only.
|
*/
|
numprint = -1;
|
for (index = 0, p = &shmems[0]; index < numshmems; p++, index++) {
|
void __iomem *base;
|
|
numprint++;
|
numprint %= 8;
|
if (!numprint) {
|
arc_cont(D_INIT, "\n");
|
arc_cont(D_INIT, "S3: ");
|
}
|
arc_cont(D_INIT, "%lXh ", *p);
|
|
if (!request_mem_region(*p, MIRROR_SIZE, "arcnet (90xx)")) {
|
arc_cont(D_INIT_REASONS, "(request_mem_region)\n");
|
arc_cont(D_INIT_REASONS, "Stage 3: ");
|
if (BUGLVL(D_INIT_REASONS))
|
numprint = 0;
|
goto out;
|
}
|
base = ioremap(*p, MIRROR_SIZE);
|
if (!base) {
|
arc_cont(D_INIT_REASONS, "(ioremap)\n");
|
arc_cont(D_INIT_REASONS, "Stage 3: ");
|
if (BUGLVL(D_INIT_REASONS))
|
numprint = 0;
|
goto out1;
|
}
|
if (arcnet_readb(base, COM9026_REG_R_STATUS) != TESTvalue) {
|
arc_cont(D_INIT_REASONS, "(%02Xh != %02Xh)\n",
|
arcnet_readb(base, COM9026_REG_R_STATUS),
|
TESTvalue);
|
arc_cont(D_INIT_REASONS, "S3: ");
|
if (BUGLVL(D_INIT_REASONS))
|
numprint = 0;
|
goto out2;
|
}
|
/* By writing 0x42 to the TESTvalue location, we also make
|
* sure no "mirror" shmem areas show up - if they occur
|
* in another pass through this loop, they will be discarded
|
* because *cptr != TESTvalue.
|
*/
|
arcnet_writeb(0x42, base, COM9026_REG_W_INTMASK);
|
if (arcnet_readb(base, COM9026_REG_R_STATUS) != 0x42) {
|
arc_cont(D_INIT_REASONS, "(read only)\n");
|
arc_cont(D_INIT_REASONS, "S3: ");
|
goto out2;
|
}
|
arc_cont(D_INIT_REASONS, "\n");
|
arc_cont(D_INIT_REASONS, "S3: ");
|
if (BUGLVL(D_INIT_REASONS))
|
numprint = 0;
|
iomem[index] = base;
|
continue;
|
out2:
|
iounmap(base);
|
out1:
|
release_mem_region(*p, MIRROR_SIZE);
|
out:
|
*p-- = shmems[--numshmems];
|
index--;
|
}
|
arc_cont(D_INIT, "\n");
|
|
if (!numshmems) {
|
arc_cont(D_NORMAL, "S3: No ARCnet cards found.\n");
|
for (port = &ports[0]; port < ports + numports; port++)
|
release_region(*port, ARCNET_TOTAL_SIZE);
|
kfree(shmems);
|
kfree(iomem);
|
return;
|
}
|
/* Stage 4: something of a dummy, to report the shmems that are
|
* still possible after stage 3.
|
*/
|
numprint = -1;
|
for (p = &shmems[0]; p < shmems + numshmems; p++) {
|
numprint++;
|
numprint %= 8;
|
if (!numprint) {
|
arc_cont(D_INIT, "\n");
|
arc_cont(D_INIT, "S4: ");
|
}
|
arc_cont(D_INIT, "%lXh ", *p);
|
}
|
arc_cont(D_INIT, "\n");
|
|
/* Stage 5: for any ports that have the correct status, can disable
|
* the RESET flag, and (if no irq is given) generate an autoirq,
|
* register an ARCnet device.
|
*
|
* Currently, we can only register one device per probe, so quit
|
* after the first one is found.
|
*/
|
numprint = -1;
|
for (port = &ports[0]; port < ports + numports; port++) {
|
int found = 0;
|
|
numprint++;
|
numprint %= 8;
|
if (!numprint) {
|
arc_cont(D_INIT, "\n");
|
arc_cont(D_INIT, "S5: ");
|
}
|
arc_cont(D_INIT, "%Xh ", *port);
|
|
ioaddr = *port;
|
status = arcnet_inb(ioaddr, COM9026_REG_R_STATUS);
|
|
if ((status & 0x9D)
|
!= (NORXflag | RECONflag | TXFREEflag | RESETflag)) {
|
arc_cont(D_INIT_REASONS, "(status=%Xh)\n", status);
|
arc_cont(D_INIT_REASONS, "S5: ");
|
if (BUGLVL(D_INIT_REASONS))
|
numprint = 0;
|
release_region(*port, ARCNET_TOTAL_SIZE);
|
*port-- = ports[--numports];
|
continue;
|
}
|
arcnet_outb(CFLAGScmd | RESETclear | CONFIGclear,
|
ioaddr, COM9026_REG_W_COMMAND);
|
status = arcnet_inb(ioaddr, COM9026_REG_R_STATUS);
|
if (status & RESETflag) {
|
arc_cont(D_INIT_REASONS, " (eternal reset, status=%Xh)\n",
|
status);
|
arc_cont(D_INIT_REASONS, "S5: ");
|
if (BUGLVL(D_INIT_REASONS))
|
numprint = 0;
|
release_region(*port, ARCNET_TOTAL_SIZE);
|
*port-- = ports[--numports];
|
continue;
|
}
|
/* skip this completely if an IRQ was given, because maybe
|
* we're on a machine that locks during autoirq!
|
*/
|
if (!irq) {
|
/* if we do this, we're sure to get an IRQ since the
|
* card has just reset and the NORXflag is on until
|
* we tell it to start receiving.
|
*/
|
airqmask = probe_irq_on();
|
arcnet_outb(NORXflag, ioaddr, COM9026_REG_W_INTMASK);
|
udelay(1);
|
arcnet_outb(0, ioaddr, COM9026_REG_W_INTMASK);
|
airq = probe_irq_off(airqmask);
|
|
if (airq <= 0) {
|
arc_cont(D_INIT_REASONS, "(airq=%d)\n", airq);
|
arc_cont(D_INIT_REASONS, "S5: ");
|
if (BUGLVL(D_INIT_REASONS))
|
numprint = 0;
|
release_region(*port, ARCNET_TOTAL_SIZE);
|
*port-- = ports[--numports];
|
continue;
|
}
|
} else {
|
airq = irq;
|
}
|
|
arc_cont(D_INIT, "(%d,", airq);
|
openparen = 1;
|
|
/* Everything seems okay. But which shmem, if any, puts
|
* back its signature byte when the card is reset?
|
*
|
* If there are multiple cards installed, there might be
|
* multiple shmems still in the list.
|
*/
|
#ifdef FAST_PROBE
|
if (numports > 1 || numshmems > 1) {
|
arcnet_inb(ioaddr, COM9026_REG_R_RESET);
|
mdelay(RESETtime);
|
} else {
|
/* just one shmem and port, assume they match */
|
arcnet_writeb(TESTvalue, iomem[0],
|
COM9026_REG_W_INTMASK);
|
}
|
#else
|
arcnet_inb(ioaddr, COM9026_REG_R_RESET);
|
mdelay(RESETtime);
|
#endif
|
|
for (index = 0; index < numshmems; index++) {
|
u_long ptr = shmems[index];
|
void __iomem *base = iomem[index];
|
|
if (arcnet_readb(base, COM9026_REG_R_STATUS) == TESTvalue) { /* found one */
|
arc_cont(D_INIT, "%lXh)\n", *p);
|
openparen = 0;
|
|
/* register the card */
|
if (com90xx_found(*port, airq, ptr, base) == 0)
|
found = 1;
|
numprint = -1;
|
|
/* remove shmem from the list */
|
shmems[index] = shmems[--numshmems];
|
iomem[index] = iomem[numshmems];
|
break; /* go to the next I/O port */
|
} else {
|
arc_cont(D_INIT_REASONS, "%Xh-",
|
arcnet_readb(base, COM9026_REG_R_STATUS));
|
}
|
}
|
|
if (openparen) {
|
if (BUGLVL(D_INIT))
|
pr_cont("no matching shmem)\n");
|
if (BUGLVL(D_INIT_REASONS)) {
|
pr_cont("S5: ");
|
numprint = 0;
|
}
|
}
|
if (!found)
|
release_region(*port, ARCNET_TOTAL_SIZE);
|
*port-- = ports[--numports];
|
}
|
|
if (BUGLVL(D_INIT_REASONS))
|
pr_cont("\n");
|
|
/* Now put back TESTvalue on all leftover shmems. */
|
for (index = 0; index < numshmems; index++) {
|
arcnet_writeb(TESTvalue, iomem[index], COM9026_REG_W_INTMASK);
|
iounmap(iomem[index]);
|
release_mem_region(shmems[index], MIRROR_SIZE);
|
}
|
kfree(shmems);
|
kfree(iomem);
|
}
|
|
static int __init check_mirror(unsigned long addr, size_t size)
|
{
|
void __iomem *p;
|
int res = -1;
|
|
if (!request_mem_region(addr, size, "arcnet (90xx)"))
|
return -1;
|
|
p = ioremap(addr, size);
|
if (p) {
|
if (arcnet_readb(p, COM9026_REG_R_STATUS) == TESTvalue)
|
res = 1;
|
else
|
res = 0;
|
iounmap(p);
|
}
|
|
release_mem_region(addr, size);
|
return res;
|
}
|
|
/* Set up the struct net_device associated with this card. Called after
|
* probing succeeds.
|
*/
|
static int __init com90xx_found(int ioaddr, int airq, u_long shmem,
|
void __iomem *p)
|
{
|
struct net_device *dev = NULL;
|
struct arcnet_local *lp;
|
u_long first_mirror, last_mirror;
|
int mirror_size;
|
|
/* allocate struct net_device */
|
dev = alloc_arcdev(device);
|
if (!dev) {
|
arc_cont(D_NORMAL, "com90xx: Can't allocate device!\n");
|
iounmap(p);
|
release_mem_region(shmem, MIRROR_SIZE);
|
return -ENOMEM;
|
}
|
lp = netdev_priv(dev);
|
/* find the real shared memory start/end points, including mirrors */
|
|
/* guess the actual size of one "memory mirror" - the number of
|
* bytes between copies of the shared memory. On most cards, it's
|
* 2k (or there are no mirrors at all) but on some, it's 4k.
|
*/
|
mirror_size = MIRROR_SIZE;
|
if (arcnet_readb(p, COM9026_REG_R_STATUS) == TESTvalue &&
|
check_mirror(shmem - MIRROR_SIZE, MIRROR_SIZE) == 0 &&
|
check_mirror(shmem - 2 * MIRROR_SIZE, MIRROR_SIZE) == 1)
|
mirror_size = 2 * MIRROR_SIZE;
|
|
first_mirror = shmem - mirror_size;
|
while (check_mirror(first_mirror, mirror_size) == 1)
|
first_mirror -= mirror_size;
|
first_mirror += mirror_size;
|
|
last_mirror = shmem + mirror_size;
|
while (check_mirror(last_mirror, mirror_size) == 1)
|
last_mirror += mirror_size;
|
last_mirror -= mirror_size;
|
|
dev->mem_start = first_mirror;
|
dev->mem_end = last_mirror + MIRROR_SIZE - 1;
|
|
iounmap(p);
|
release_mem_region(shmem, MIRROR_SIZE);
|
|
if (!request_mem_region(dev->mem_start,
|
dev->mem_end - dev->mem_start + 1,
|
"arcnet (90xx)"))
|
goto err_free_dev;
|
|
/* reserve the irq */
|
if (request_irq(airq, arcnet_interrupt, 0, "arcnet (90xx)", dev)) {
|
arc_printk(D_NORMAL, dev, "Can't get IRQ %d!\n", airq);
|
goto err_release_mem;
|
}
|
dev->irq = airq;
|
|
/* Initialize the rest of the device structure. */
|
lp->card_name = "COM90xx";
|
lp->hw.command = com90xx_command;
|
lp->hw.status = com90xx_status;
|
lp->hw.intmask = com90xx_setmask;
|
lp->hw.reset = com90xx_reset;
|
lp->hw.owner = THIS_MODULE;
|
lp->hw.copy_to_card = com90xx_copy_to_card;
|
lp->hw.copy_from_card = com90xx_copy_from_card;
|
lp->mem_start = ioremap(dev->mem_start,
|
dev->mem_end - dev->mem_start + 1);
|
if (!lp->mem_start) {
|
arc_printk(D_NORMAL, dev, "Can't remap device memory!\n");
|
goto err_free_irq;
|
}
|
|
/* get and check the station ID from offset 1 in shmem */
|
dev->dev_addr[0] = arcnet_readb(lp->mem_start, COM9026_REG_R_STATION);
|
|
dev->base_addr = ioaddr;
|
|
arc_printk(D_NORMAL, dev, "COM90xx station %02Xh found at %03lXh, IRQ %d, ShMem %lXh (%ld*%xh).\n",
|
dev->dev_addr[0],
|
dev->base_addr, dev->irq, dev->mem_start,
|
(dev->mem_end - dev->mem_start + 1) / mirror_size,
|
mirror_size);
|
|
if (register_netdev(dev))
|
goto err_unmap;
|
|
cards[numcards++] = dev;
|
return 0;
|
|
err_unmap:
|
iounmap(lp->mem_start);
|
err_free_irq:
|
free_irq(dev->irq, dev);
|
err_release_mem:
|
release_mem_region(dev->mem_start, dev->mem_end - dev->mem_start + 1);
|
err_free_dev:
|
free_netdev(dev);
|
return -EIO;
|
}
|
|
static void com90xx_command(struct net_device *dev, int cmd)
|
{
|
short ioaddr = dev->base_addr;
|
|
arcnet_outb(cmd, ioaddr, COM9026_REG_W_COMMAND);
|
}
|
|
static int com90xx_status(struct net_device *dev)
|
{
|
short ioaddr = dev->base_addr;
|
|
return arcnet_inb(ioaddr, COM9026_REG_R_STATUS);
|
}
|
|
static void com90xx_setmask(struct net_device *dev, int mask)
|
{
|
short ioaddr = dev->base_addr;
|
|
arcnet_outb(mask, ioaddr, COM9026_REG_W_INTMASK);
|
}
|
|
/* Do a hardware reset on the card, and set up necessary registers.
|
*
|
* This should be called as little as possible, because it disrupts the
|
* token on the network (causes a RECON) and requires a significant delay.
|
*
|
* However, it does make sure the card is in a defined state.
|
*/
|
static int com90xx_reset(struct net_device *dev, int really_reset)
|
{
|
struct arcnet_local *lp = netdev_priv(dev);
|
short ioaddr = dev->base_addr;
|
|
arc_printk(D_INIT, dev, "Resetting (status=%02Xh)\n",
|
arcnet_inb(ioaddr, COM9026_REG_R_STATUS));
|
|
if (really_reset) {
|
/* reset the card */
|
arcnet_inb(ioaddr, COM9026_REG_R_RESET);
|
mdelay(RESETtime);
|
}
|
/* clear flags & end reset */
|
arcnet_outb(CFLAGScmd | RESETclear, ioaddr, COM9026_REG_W_COMMAND);
|
arcnet_outb(CFLAGScmd | CONFIGclear, ioaddr, COM9026_REG_W_COMMAND);
|
|
#if 0
|
/* don't do this until we verify that it doesn't hurt older cards! */
|
arcnet_outb(arcnet_inb(ioaddr, COM9026_REG_RW_CONFIG) | ENABLE16flag,
|
ioaddr, COM9026_REG_RW_CONFIG);
|
#endif
|
|
/* verify that the ARCnet signature byte is present */
|
if (arcnet_readb(lp->mem_start, COM9026_REG_R_STATUS) != TESTvalue) {
|
if (really_reset)
|
arc_printk(D_NORMAL, dev, "reset failed: TESTvalue not present.\n");
|
return 1;
|
}
|
/* enable extended (512-byte) packets */
|
arcnet_outb(CONFIGcmd | EXTconf, ioaddr, COM9026_REG_W_COMMAND);
|
|
/* clean out all the memory to make debugging make more sense :) */
|
if (BUGLVL(D_DURING))
|
memset_io(lp->mem_start, 0x42, 2048);
|
|
/* done! return success. */
|
return 0;
|
}
|
|
static void com90xx_copy_to_card(struct net_device *dev, int bufnum,
|
int offset, void *buf, int count)
|
{
|
struct arcnet_local *lp = netdev_priv(dev);
|
void __iomem *memaddr = lp->mem_start + bufnum * 512 + offset;
|
|
TIME(dev, "memcpy_toio", count, memcpy_toio(memaddr, buf, count));
|
}
|
|
static void com90xx_copy_from_card(struct net_device *dev, int bufnum,
|
int offset, void *buf, int count)
|
{
|
struct arcnet_local *lp = netdev_priv(dev);
|
void __iomem *memaddr = lp->mem_start + bufnum * 512 + offset;
|
|
TIME(dev, "memcpy_fromio", count, memcpy_fromio(buf, memaddr, count));
|
}
|
|
MODULE_LICENSE("GPL");
|
|
static int __init com90xx_init(void)
|
{
|
if (irq == 2)
|
irq = 9;
|
com90xx_probe();
|
if (!numcards)
|
return -EIO;
|
return 0;
|
}
|
|
static void __exit com90xx_exit(void)
|
{
|
struct net_device *dev;
|
struct arcnet_local *lp;
|
int count;
|
|
for (count = 0; count < numcards; count++) {
|
dev = cards[count];
|
lp = netdev_priv(dev);
|
|
unregister_netdev(dev);
|
free_irq(dev->irq, dev);
|
iounmap(lp->mem_start);
|
release_region(dev->base_addr, ARCNET_TOTAL_SIZE);
|
release_mem_region(dev->mem_start,
|
dev->mem_end - dev->mem_start + 1);
|
free_netdev(dev);
|
}
|
}
|
|
module_init(com90xx_init);
|
module_exit(com90xx_exit);
|
|
#ifndef MODULE
|
static int __init com90xx_setup(char *s)
|
{
|
int ints[8];
|
|
s = get_options(s, 8, ints);
|
if (!ints[0] && !*s) {
|
pr_notice("Disabled\n");
|
return 1;
|
}
|
|
switch (ints[0]) {
|
default: /* ERROR */
|
pr_err("Too many arguments\n");
|
case 3: /* Mem address */
|
shmem = ints[3];
|
case 2: /* IRQ */
|
irq = ints[2];
|
case 1: /* IO address */
|
io = ints[1];
|
}
|
|
if (*s)
|
snprintf(device, sizeof(device), "%s", s);
|
|
return 1;
|
}
|
|
__setup("com90xx=", com90xx_setup);
|
#endif
|
