linux/drivers/net/smc-ultra.c

610 lines
18 KiB
C
Raw Normal View History

/* smc-ultra.c: A SMC Ultra ethernet driver for linux. */
/*
This is a driver for the SMC Ultra and SMC EtherEZ ISA ethercards.
Written 1993-1998 by Donald Becker.
Copyright 1993 United States Government as represented by the
Director, National Security Agency.
This software may be used and distributed according to the terms
of the GNU General Public License, incorporated herein by reference.
The author may be reached as becker@scyld.com, or C/O
Scyld Computing Corporation
410 Severn Ave., Suite 210
Annapolis MD 21403
This driver uses the cards in the 8390-compatible mode.
Most of the run-time complexity is handled by the generic code in
8390.c. The code in this file is responsible for
ultra_probe() Detecting and initializing the card.
ultra_probe1()
ultra_probe_isapnp()
ultra_open() The card-specific details of starting, stopping
ultra_reset_8390() and resetting the 8390 NIC core.
ultra_close()
ultra_block_input() Routines for reading and writing blocks of
ultra_block_output() packet buffer memory.
ultra_pio_input()
ultra_pio_output()
This driver enables the shared memory only when doing the actual data
transfers to avoid a bug in early version of the card that corrupted
data transferred by a AHA1542.
This driver now supports the programmed-I/O (PIO) data transfer mode of
the EtherEZ. It does not use the non-8390-compatible "Altego" mode.
That support (if available) is in smc-ez.c.
Changelog:
Paul Gortmaker : multiple card support for module users.
Donald Becker : 4/17/96 PIO support, minor potential problems avoided.
Donald Becker : 6/6/96 correctly set auto-wrap bit.
Alexander Sotirov : 1/20/01 Added support for ISAPnP cards
Note about the ISA PnP support:
This driver can not autoprobe for more than one SMC EtherEZ PnP card.
You have to configure the second card manually through the /proc/isapnp
interface and then load the module with an explicit io=0x___ option.
*/
static const char version[] =
"smc-ultra.c:v2.02 2/3/98 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n";
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/init.h>
#include <linux/isapnp.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/system.h>
#include "8390.h"
#define DRV_NAME "smc-ultra"
/* A zero-terminated list of I/O addresses to be probed. */
static unsigned int ultra_portlist[] __initdata =
{0x200, 0x220, 0x240, 0x280, 0x300, 0x340, 0x380, 0};
static int ultra_probe1(struct net_device *dev, int ioaddr);
#ifdef __ISAPNP__
static int ultra_probe_isapnp(struct net_device *dev);
#endif
static int ultra_open(struct net_device *dev);
static void ultra_reset_8390(struct net_device *dev);
static void ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
int ring_page);
static void ultra_block_input(struct net_device *dev, int count,
struct sk_buff *skb, int ring_offset);
static void ultra_block_output(struct net_device *dev, int count,
const unsigned char *buf, const int start_page);
static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
int ring_page);
static void ultra_pio_input(struct net_device *dev, int count,
struct sk_buff *skb, int ring_offset);
static void ultra_pio_output(struct net_device *dev, int count,
const unsigned char *buf, const int start_page);
static int ultra_close_card(struct net_device *dev);
#ifdef __ISAPNP__
static struct isapnp_device_id ultra_device_ids[] __initdata = {
{ ISAPNP_VENDOR('S','M','C'), ISAPNP_FUNCTION(0x8416),
ISAPNP_VENDOR('S','M','C'), ISAPNP_FUNCTION(0x8416),
(long) "SMC EtherEZ (8416)" },
{ } /* terminate list */
};
MODULE_DEVICE_TABLE(isapnp, ultra_device_ids);
#endif
#define START_PG 0x00 /* First page of TX buffer */
#define ULTRA_CMDREG 0 /* Offset to ASIC command register. */
#define ULTRA_RESET 0x80 /* Board reset, in ULTRA_CMDREG. */
#define ULTRA_MEMENB 0x40 /* Enable the shared memory. */
#define IOPD 0x02 /* I/O Pipe Data (16 bits), PIO operation. */
#define IOPA 0x07 /* I/O Pipe Address for PIO operation. */
#define ULTRA_NIC_OFFSET 16 /* NIC register offset from the base_addr. */
#define ULTRA_IO_EXTENT 32
#define EN0_ERWCNT 0x08 /* Early receive warning count. */
#ifdef CONFIG_NET_POLL_CONTROLLER
static void ultra_poll(struct net_device *dev)
{
disable_irq(dev->irq);
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 21:55:46 +08:00
ei_interrupt(dev->irq, dev);
enable_irq(dev->irq);
}
#endif
/* Probe for the Ultra. This looks like a 8013 with the station
address PROM at I/O ports <base>+8 to <base>+13, with a checksum
following.
*/
static int __init do_ultra_probe(struct net_device *dev)
{
int i;
int base_addr = dev->base_addr;
int irq = dev->irq;
#ifdef CONFIG_NET_POLL_CONTROLLER
dev->poll_controller = &ultra_poll;
#endif
if (base_addr > 0x1ff) /* Check a single specified location. */
return ultra_probe1(dev, base_addr);
else if (base_addr != 0) /* Don't probe at all. */
return -ENXIO;
#ifdef __ISAPNP__
/* Look for any installed ISAPnP cards */
if (isapnp_present() && (ultra_probe_isapnp(dev) == 0))
return 0;
#endif
for (i = 0; ultra_portlist[i]; i++) {
dev->irq = irq;
if (ultra_probe1(dev, ultra_portlist[i]) == 0)
return 0;
}
return -ENODEV;
}
#ifndef MODULE
struct net_device * __init ultra_probe(int unit)
{
struct net_device *dev = alloc_ei_netdev();
int err;
if (!dev)
return ERR_PTR(-ENOMEM);
sprintf(dev->name, "eth%d", unit);
netdev_boot_setup_check(dev);
err = do_ultra_probe(dev);
if (err)
goto out;
return dev;
out:
free_netdev(dev);
return ERR_PTR(err);
}
#endif
static int __init ultra_probe1(struct net_device *dev, int ioaddr)
{
int i, retval;
int checksum = 0;
const char *model_name;
unsigned char eeprom_irq = 0;
static unsigned version_printed;
/* Values from various config regs. */
unsigned char num_pages, irqreg, addr, piomode;
unsigned char idreg = inb(ioaddr + 7);
unsigned char reg4 = inb(ioaddr + 4) & 0x7f;
DECLARE_MAC_BUF(mac);
if (!request_region(ioaddr, ULTRA_IO_EXTENT, DRV_NAME))
return -EBUSY;
/* Check the ID nibble. */
if ((idreg & 0xF0) != 0x20 /* SMC Ultra */
&& (idreg & 0xF0) != 0x40) { /* SMC EtherEZ */
retval = -ENODEV;
goto out;
}
/* Select the station address register set. */
outb(reg4, ioaddr + 4);
for (i = 0; i < 8; i++)
checksum += inb(ioaddr + 8 + i);
if ((checksum & 0xff) != 0xFF) {
retval = -ENODEV;
goto out;
}
if (ei_debug && version_printed++ == 0)
printk(version);
model_name = (idreg & 0xF0) == 0x20 ? "SMC Ultra" : "SMC EtherEZ";
for (i = 0; i < 6; i++)
dev->dev_addr[i] = inb(ioaddr + 8 + i);
printk("%s: %s at %#3x, %s", dev->name, model_name,
ioaddr, print_mac(mac, dev->dev_addr));
/* Switch from the station address to the alternate register set and
read the useful registers there. */
outb(0x80 | reg4, ioaddr + 4);
/* Enabled FINE16 mode to avoid BIOS ROM width mismatches @ reboot. */
outb(0x80 | inb(ioaddr + 0x0c), ioaddr + 0x0c);
piomode = inb(ioaddr + 0x8);
addr = inb(ioaddr + 0xb);
irqreg = inb(ioaddr + 0xd);
/* Switch back to the station address register set so that the MS-DOS driver
can find the card after a warm boot. */
outb(reg4, ioaddr + 4);
if (dev->irq < 2) {
unsigned char irqmap[] = {0, 9, 3, 5, 7, 10, 11, 15};
int irq;
/* The IRQ bits are split. */
irq = irqmap[((irqreg & 0x40) >> 4) + ((irqreg & 0x0c) >> 2)];
if (irq == 0) {
printk(", failed to detect IRQ line.\n");
retval = -EAGAIN;
goto out;
}
dev->irq = irq;
eeprom_irq = 1;
}
/* The 8390 isn't at the base address, so fake the offset */
dev->base_addr = ioaddr+ULTRA_NIC_OFFSET;
{
int addr_tbl[4] = {0x0C0000, 0x0E0000, 0xFC0000, 0xFE0000};
short num_pages_tbl[4] = {0x20, 0x40, 0x80, 0xff};
dev->mem_start = ((addr & 0x0f) << 13) + addr_tbl[(addr >> 6) & 3] ;
num_pages = num_pages_tbl[(addr >> 4) & 3];
}
ei_status.name = model_name;
ei_status.word16 = 1;
ei_status.tx_start_page = START_PG;
ei_status.rx_start_page = START_PG + TX_PAGES;
ei_status.stop_page = num_pages;
ei_status.mem = ioremap(dev->mem_start, (ei_status.stop_page - START_PG)*256);
if (!ei_status.mem) {
printk(", failed to ioremap.\n");
retval = -ENOMEM;
goto out;
}
dev->mem_end = dev->mem_start + (ei_status.stop_page - START_PG)*256;
if (piomode) {
printk(",%s IRQ %d programmed-I/O mode.\n",
eeprom_irq ? "EEPROM" : "assigned ", dev->irq);
ei_status.block_input = &ultra_pio_input;
ei_status.block_output = &ultra_pio_output;
ei_status.get_8390_hdr = &ultra_pio_get_hdr;
} else {
printk(",%s IRQ %d memory %#lx-%#lx.\n", eeprom_irq ? "" : "assigned ",
dev->irq, dev->mem_start, dev->mem_end-1);
ei_status.block_input = &ultra_block_input;
ei_status.block_output = &ultra_block_output;
ei_status.get_8390_hdr = &ultra_get_8390_hdr;
}
ei_status.reset_8390 = &ultra_reset_8390;
dev->open = &ultra_open;
dev->stop = &ultra_close_card;
#ifdef CONFIG_NET_POLL_CONTROLLER
dev->poll_controller = ei_poll;
#endif
NS8390_init(dev, 0);
retval = register_netdev(dev);
if (retval)
goto out;
return 0;
out:
release_region(ioaddr, ULTRA_IO_EXTENT);
return retval;
}
#ifdef __ISAPNP__
static int __init ultra_probe_isapnp(struct net_device *dev)
{
int i;
for (i = 0; ultra_device_ids[i].vendor != 0; i++) {
struct pnp_dev *idev = NULL;
while ((idev = pnp_find_dev(NULL,
ultra_device_ids[i].vendor,
ultra_device_ids[i].function,
idev))) {
/* Avoid already found cards from previous calls */
if (pnp_device_attach(idev) < 0)
continue;
if (pnp_activate_dev(idev) < 0) {
__again:
pnp_device_detach(idev);
continue;
}
/* if no io and irq, search for next */
if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0))
goto __again;
/* found it */
dev->base_addr = pnp_port_start(idev, 0);
dev->irq = pnp_irq(idev, 0);
printk(KERN_INFO "smc-ultra.c: ISAPnP reports %s at i/o %#lx, irq %d.\n",
(char *) ultra_device_ids[i].driver_data,
dev->base_addr, dev->irq);
if (ultra_probe1(dev, dev->base_addr) != 0) { /* Shouldn't happen. */
printk(KERN_ERR "smc-ultra.c: Probe of ISAPnP card at %#lx failed.\n", dev->base_addr);
pnp_device_detach(idev);
return -ENXIO;
}
ei_status.priv = (unsigned long)idev;
break;
}
if (!idev)
continue;
return 0;
}
return -ENODEV;
}
#endif
static int
ultra_open(struct net_device *dev)
{
int retval;
int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
unsigned char irq2reg[] = {0, 0, 0x04, 0x08, 0, 0x0C, 0, 0x40,
0, 0x04, 0x44, 0x48, 0, 0, 0, 0x4C, };
retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev);
if (retval)
return retval;
outb(0x00, ioaddr); /* Disable shared memory for safety. */
outb(0x80, ioaddr + 5);
/* Set the IRQ line. */
outb(inb(ioaddr + 4) | 0x80, ioaddr + 4);
outb((inb(ioaddr + 13) & ~0x4C) | irq2reg[dev->irq], ioaddr + 13);
outb(inb(ioaddr + 4) & 0x7f, ioaddr + 4);
if (ei_status.block_input == &ultra_pio_input) {
outb(0x11, ioaddr + 6); /* Enable interrupts and PIO. */
outb(0x01, ioaddr + 0x19); /* Enable ring read auto-wrap. */
} else
outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */
/* Set the early receive warning level in window 0 high enough not
to receive ERW interrupts. */
outb_p(E8390_NODMA+E8390_PAGE0, dev->base_addr);
outb(0xff, dev->base_addr + EN0_ERWCNT);
ei_open(dev);
return 0;
}
static void
ultra_reset_8390(struct net_device *dev)
{
int cmd_port = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC base addr */
outb(ULTRA_RESET, cmd_port);
if (ei_debug > 1) printk("resetting Ultra, t=%ld...", jiffies);
ei_status.txing = 0;
outb(0x00, cmd_port); /* Disable shared memory for safety. */
outb(0x80, cmd_port + 5);
if (ei_status.block_input == &ultra_pio_input)
outb(0x11, cmd_port + 6); /* Enable interrupts and PIO. */
else
outb(0x01, cmd_port + 6); /* Enable interrupts and memory. */
if (ei_debug > 1) printk("reset done\n");
return;
}
/* Grab the 8390 specific header. Similar to the block_input routine, but
we don't need to be concerned with ring wrap as the header will be at
the start of a page, so we optimize accordingly. */
static void
ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
{
void __iomem *hdr_start = ei_status.mem + ((ring_page - START_PG)<<8);
outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem on */
#ifdef __BIG_ENDIAN
/* Officially this is what we are doing, but the readl() is faster */
/* unfortunately it isn't endian aware of the struct */
memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr));
hdr->count = le16_to_cpu(hdr->count);
#else
((unsigned int*)hdr)[0] = readl(hdr_start);
#endif
outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem off */
}
/* Block input and output are easy on shared memory ethercards, the only
complication is when the ring buffer wraps. */
static void
ultra_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
{
void __iomem *xfer_start = ei_status.mem + ring_offset - (START_PG<<8);
/* Enable shared memory. */
outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);
if (ring_offset + count > ei_status.stop_page*256) {
/* We must wrap the input move. */
int semi_count = ei_status.stop_page*256 - ring_offset;
memcpy_fromio(skb->data, xfer_start, semi_count);
count -= semi_count;
memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count);
} else {
memcpy_fromio(skb->data, xfer_start, count);
}
outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */
}
static void
ultra_block_output(struct net_device *dev, int count, const unsigned char *buf,
int start_page)
{
void __iomem *shmem = ei_status.mem + ((start_page - START_PG)<<8);
/* Enable shared memory. */
outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);
memcpy_toio(shmem, buf, count);
outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */
}
/* The identical operations for programmed I/O cards.
The PIO model is trivial to use: the 16 bit start address is written
byte-sequentially to IOPA, with no intervening I/O operations, and the
data is read or written to the IOPD data port.
The only potential complication is that the address register is shared
and must be always be rewritten between each read/write direction change.
This is no problem for us, as the 8390 code ensures that we are single
threaded. */
static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
int ring_page)
{
int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */
outb(ring_page, ioaddr + IOPA);
insw(ioaddr + IOPD, hdr, sizeof(struct e8390_pkt_hdr)>>1);
}
static void ultra_pio_input(struct net_device *dev, int count,
struct sk_buff *skb, int ring_offset)
{
int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
char *buf = skb->data;
/* For now set the address again, although it should already be correct. */
outb(ring_offset, ioaddr + IOPA); /* Set the address, LSB first. */
outb(ring_offset >> 8, ioaddr + IOPA);
/* We know skbuffs are padded to at least word alignment. */
insw(ioaddr + IOPD, buf, (count+1)>>1);
}
static void ultra_pio_output(struct net_device *dev, int count,
const unsigned char *buf, const int start_page)
{
int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */
outb(start_page, ioaddr + IOPA);
/* An extra odd byte is OK here as well. */
outsw(ioaddr + IOPD, buf, (count+1)>>1);
}
static int
ultra_close_card(struct net_device *dev)
{
int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* CMDREG */
netif_stop_queue(dev);
if (ei_debug > 1)
printk("%s: Shutting down ethercard.\n", dev->name);
outb(0x00, ioaddr + 6); /* Disable interrupts. */
free_irq(dev->irq, dev);
NS8390_init(dev, 0);
/* We should someday disable shared memory and change to 8-bit mode
"just in case"... */
return 0;
}
#ifdef MODULE
#define MAX_ULTRA_CARDS 4 /* Max number of Ultra cards per module */
static struct net_device *dev_ultra[MAX_ULTRA_CARDS];
static int io[MAX_ULTRA_CARDS];
static int irq[MAX_ULTRA_CARDS];
module_param_array(io, int, NULL, 0);
module_param_array(irq, int, NULL, 0);
MODULE_PARM_DESC(io, "I/O base address(es)");
MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
MODULE_DESCRIPTION("SMC Ultra/EtherEZ ISA/PnP Ethernet driver");
MODULE_LICENSE("GPL");
/* This is set up so that only a single autoprobe takes place per call.
ISA device autoprobes on a running machine are not recommended. */
int __init
init_module(void)
{
struct net_device *dev;
int this_dev, found = 0;
for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) {
if (io[this_dev] == 0) {
if (this_dev != 0) break; /* only autoprobe 1st one */
printk(KERN_NOTICE "smc-ultra.c: Presently autoprobing (not recommended) for a single card.\n");
}
dev = alloc_ei_netdev();
if (!dev)
break;
dev->irq = irq[this_dev];
dev->base_addr = io[this_dev];
if (do_ultra_probe(dev) == 0) {
dev_ultra[found++] = dev;
continue;
}
free_netdev(dev);
printk(KERN_WARNING "smc-ultra.c: No SMC Ultra card found (i/o = 0x%x).\n", io[this_dev]);
break;
}
if (found)
return 0;
return -ENXIO;
}
[PATCH] fix a few "warning: 'cleanup_card' defined but not used" These warnings are emitted if non-modular network drivers are built. Fixes just move cleanup_card() definitions into #ifdef MODULE region. /.1/usr/srcdevel/kernel/linux-2.6.15-rc7.src/drivers/net/wd.c:131: warning: 'cleanup_card' defined but not used /.1/usr/srcdevel/kernel/linux-2.6.15-rc7.src/drivers/net/3c503.c:152: warning: 'cleanup_card' defined but not used /.1/usr/srcdevel/kernel/linux-2.6.15-rc7.src/drivers/net/ne.c:216: warning: 'cleanup_card' defined but not used /.1/usr/srcdevel/kernel/linux-2.6.15-rc7.src/drivers/net/hp.c:106: warning: 'cleanup_card' defined but not used /.1/usr/srcdevel/kernel/linux-2.6.15-rc7.src/drivers/net/hp-plus.c:142: warning: 'cleanup_card' defined but not used /.1/usr/srcdevel/kernel/linux-2.6.15-rc7.src/drivers/net/smc-ultra.c:172: warning: 'cleanup_card' defined but not used /.1/usr/srcdevel/kernel/linux-2.6.15-rc7.src/drivers/net/e2100.c:144: warning: 'cleanup_card' defined but not used /.1/usr/srcdevel/kernel/linux-2.6.15-rc7.src/drivers/net/es3210.c:159: warning: 'cleanup_card' defined but not used /.1/usr/srcdevel/kernel/linux-2.6.15-rc7.src/drivers/net/lne390.c:149: warning: 'cleanup_card' defined but not used /.1/usr/srcdevel/kernel/linux-2.6.15-rc7.src/drivers/net/lance.c:313: warning: 'cleanup_card' defined but not used /.1/usr/srcdevel/kernel/linux-2.6.15-rc7.src/drivers/net/ac3200.c:127: warning: 'cleanup_card' defined but not used Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-01-06 14:45:47 +08:00
static void cleanup_card(struct net_device *dev)
{
/* NB: ultra_close_card() does free_irq */
#ifdef __ISAPNP__
struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv;
if (idev)
pnp_device_detach(idev);
#endif
release_region(dev->base_addr - ULTRA_NIC_OFFSET, ULTRA_IO_EXTENT);
iounmap(ei_status.mem);
}
void __exit
cleanup_module(void)
{
int this_dev;
for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) {
struct net_device *dev = dev_ultra[this_dev];
if (dev) {
unregister_netdev(dev);
cleanup_card(dev);
free_netdev(dev);
}
}
}
#endif /* MODULE */