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linux/drivers/net/mac8390.c
Finn Thain 217cbfa856 mac8390: fix regression caused during net_device_ops conversion 
Changeset ca17584bf2 ("mac8390: update
to net_device_ops") broke mac8390 by adding 8390.o to the link. That
meant that lib8390.c was included twice, once in mac8390.c and once in
8390.c, subject to different macros. This patch reverts that by
avoiding the wrappers in 8390.c. They seem to be of no value since
COMPAT_NET_DEV_OPS is going away soon.

Tested with a Kinetics EtherPort card.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 22:43:49 -07:00

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/* mac8390.c: New driver for 8390-based Nubus (or Nubus-alike)
Ethernet cards on Linux */
/* Based on the former daynaport.c driver, by Alan Cox. Some code
taken from or inspired by skeleton.c by Donald Becker, acenic.c by
Jes Sorensen, and ne2k-pci.c by Donald Becker and Paul Gortmaker.
This software may be used and distributed according to the terms of
the GNU Public License, incorporated herein by reference. */
/* 2000-02-28: support added for Dayna and Kinetics cards by
A.G.deWijn@phys.uu.nl */
/* 2000-04-04: support added for Dayna2 by bart@etpmod.phys.tue.nl */
/* 2001-04-18: support for DaynaPort E/LC-M by rayk@knightsmanor.org */
/* 2001-05-15: support for Cabletron ported from old daynaport driver
* and fixed access to Sonic Sys card which masquerades as a Farallon
* by rayk@knightsmanor.org */
/* 2002-12-30: Try to support more cards, some clues from NetBSD driver */
/* 2003-12-26: Make sure Asante cards always work. */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/fcntl.h>
#include <linux/interrupt.h>
#include <linux/ptrace.h>
#include <linux/ioport.h>
#include <linux/nubus.h>
#include <linux/in.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/bitops.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/dma.h>
#include <asm/hwtest.h>
#include <asm/macints.h>
static char version[] =
"mac8390.c: v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n";
#define EI_SHIFT(x) (ei_local->reg_offset[x])
#define ei_inb(port) in_8(port)
#define ei_outb(val,port) out_8(port,val)
#define ei_inb_p(port) in_8(port)
#define ei_outb_p(val,port) out_8(port,val)
#include "lib8390.c"
#define WD_START_PG 0x00 /* First page of TX buffer */
#define CABLETRON_RX_START_PG 0x00 /* First page of RX buffer */
#define CABLETRON_RX_STOP_PG 0x30 /* Last page +1 of RX ring */
#define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG /* First page of TX buffer */
/* Unfortunately it seems we have to hardcode these for the moment */
/* Shouldn't the card know about this? Does anyone know where to read it off the card? Do we trust the data provided by the card? */
#define DAYNA_8390_BASE 0x80000
#define DAYNA_8390_MEM 0x00000
#define CABLETRON_8390_BASE 0x90000
#define CABLETRON_8390_MEM 0x00000
#define INTERLAN_8390_BASE 0xE0000
#define INTERLAN_8390_MEM 0xD0000
enum mac8390_type {
MAC8390_NONE = -1,
MAC8390_APPLE,
MAC8390_ASANTE,
MAC8390_FARALLON,
MAC8390_CABLETRON,
MAC8390_DAYNA,
MAC8390_INTERLAN,
MAC8390_KINETICS,
};
static const char * cardname[] = {
"apple",
"asante",
"farallon",
"cabletron",
"dayna",
"interlan",
"kinetics",
};
static int word16[] = {
1, /* apple */
1, /* asante */
1, /* farallon */
1, /* cabletron */
0, /* dayna */
1, /* interlan */
0, /* kinetics */
};
/* on which cards do we use NuBus resources? */
static int useresources[] = {
1, /* apple */
1, /* asante */
1, /* farallon */
0, /* cabletron */
0, /* dayna */
0, /* interlan */
0, /* kinetics */
};
enum mac8390_access {
ACCESS_UNKNOWN = 0,
ACCESS_32,
ACCESS_16,
};
extern int mac8390_memtest(struct net_device * dev);
static int mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
enum mac8390_type type);
static int mac8390_open(struct net_device * dev);
static int mac8390_close(struct net_device * dev);
static void mac8390_no_reset(struct net_device *dev);
static void interlan_reset(struct net_device *dev);
/* Sane (32-bit chunk memory read/write) - Some Farallon and Apple do this*/
static void sane_get_8390_hdr(struct net_device *dev,
struct e8390_pkt_hdr *hdr, int ring_page);
static void sane_block_input(struct net_device * dev, int count,
struct sk_buff * skb, int ring_offset);
static void sane_block_output(struct net_device * dev, int count,
const unsigned char * buf, const int start_page);
/* dayna_memcpy to and from card */
static void dayna_memcpy_fromcard(struct net_device *dev, void *to,
int from, int count);
static void dayna_memcpy_tocard(struct net_device *dev, int to,
const void *from, int count);
/* Dayna - Dayna/Kinetics use this */
static void dayna_get_8390_hdr(struct net_device *dev,
struct e8390_pkt_hdr *hdr, int ring_page);
static void dayna_block_input(struct net_device *dev, int count,
struct sk_buff *skb, int ring_offset);
static void dayna_block_output(struct net_device *dev, int count,
const unsigned char *buf, int start_page);
#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
/* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */
static void slow_sane_get_8390_hdr(struct net_device *dev,
struct e8390_pkt_hdr *hdr, int ring_page);
static void slow_sane_block_input(struct net_device *dev, int count,
struct sk_buff *skb, int ring_offset);
static void slow_sane_block_output(struct net_device *dev, int count,
const unsigned char *buf, int start_page);
static void word_memcpy_tocard(void *tp, const void *fp, int count);
static void word_memcpy_fromcard(void *tp, const void *fp, int count);
static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev)
{
switch (dev->dr_sw) {
case NUBUS_DRSW_3COM:
switch (dev->dr_hw) {
case NUBUS_DRHW_APPLE_SONIC_NB:
case NUBUS_DRHW_APPLE_SONIC_LC:
case NUBUS_DRHW_SONNET:
return MAC8390_NONE;
break;
default:
return MAC8390_APPLE;
break;
}
break;
case NUBUS_DRSW_APPLE:
switch (dev->dr_hw) {
case NUBUS_DRHW_ASANTE_LC:
return MAC8390_NONE;
break;
case NUBUS_DRHW_CABLETRON:
return MAC8390_CABLETRON;
break;
default:
return MAC8390_APPLE;
break;
}
break;
case NUBUS_DRSW_ASANTE:
return MAC8390_ASANTE;
break;
case NUBUS_DRSW_TECHWORKS:
case NUBUS_DRSW_DAYNA2:
case NUBUS_DRSW_DAYNA_LC:
if (dev->dr_hw == NUBUS_DRHW_CABLETRON)
return MAC8390_CABLETRON;
else
return MAC8390_APPLE;
break;
case NUBUS_DRSW_FARALLON:
return MAC8390_FARALLON;
break;
case NUBUS_DRSW_KINETICS:
switch (dev->dr_hw) {
case NUBUS_DRHW_INTERLAN:
return MAC8390_INTERLAN;
break;
default:
return MAC8390_KINETICS;
break;
}
break;
case NUBUS_DRSW_DAYNA:
// These correspond to Dayna Sonic cards
// which use the macsonic driver
if (dev->dr_hw == NUBUS_DRHW_SMC9194 ||
dev->dr_hw == NUBUS_DRHW_INTERLAN )
return MAC8390_NONE;
else
return MAC8390_DAYNA;
break;
}
return MAC8390_NONE;
}
static enum mac8390_access __init mac8390_testio(volatile unsigned long membase)
{
unsigned long outdata = 0xA5A0B5B0;
unsigned long indata = 0x00000000;
/* Try writing 32 bits */
memcpy((char *)membase, (char *)&outdata, 4);
/* Now compare them */
if (memcmp((char *)&outdata, (char *)membase, 4) == 0)
return ACCESS_32;
/* Write 16 bit output */
word_memcpy_tocard((char *)membase, (char *)&outdata, 4);
/* Now read it back */
word_memcpy_fromcard((char *)&indata, (char *)membase, 4);
if (outdata == indata)
return ACCESS_16;
return ACCESS_UNKNOWN;
}
static int __init mac8390_memsize(unsigned long membase)
{
unsigned long flags;
int i, j;
local_irq_save(flags);
/* Check up to 32K in 4K increments */
for (i = 0; i < 8; i++) {
volatile unsigned short *m = (unsigned short *) (membase + (i * 0x1000));
/* Unwriteable - we have a fully decoded card and the
RAM end located */
if (hwreg_present(m) == 0)
break;
/* write a distinctive byte */
*m = 0xA5A0 | i;
/* check that we read back what we wrote */
if (*m != (0xA5A0 | i))
break;
/* check for partial decode and wrap */
for (j = 0; j < i; j++) {
volatile unsigned short *p = (unsigned short *) (membase + (j * 0x1000));
if (*p != (0xA5A0 | j))
break;
}
}
local_irq_restore(flags);
/* in any case, we stopped once we tried one block too many,
or once we reached 32K */
return i * 0x1000;
}
struct net_device * __init mac8390_probe(int unit)
{
struct net_device *dev;
volatile unsigned short *i;
int version_disp = 0;
struct nubus_dev * ndev = NULL;
int err = -ENODEV;
struct nubus_dir dir;
struct nubus_dirent ent;
int offset;
static unsigned int slots;
enum mac8390_type cardtype;
/* probably should check for Nubus instead */
if (!MACH_IS_MAC)
return ERR_PTR(-ENODEV);
dev = ____alloc_ei_netdev(0);
if (!dev)
return ERR_PTR(-ENOMEM);
if (unit >= 0)
sprintf(dev->name, "eth%d", unit);
while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, ndev))) {
/* Have we seen it already? */
if (slots & (1<<ndev->board->slot))
continue;
slots |= 1<<ndev->board->slot;
if ((cardtype = mac8390_ident(ndev)) == MAC8390_NONE)
continue;
if (version_disp == 0) {
version_disp = 1;
printk(version);
}
dev->irq = SLOT2IRQ(ndev->board->slot);
/* This is getting to be a habit */
dev->base_addr = ndev->board->slot_addr | ((ndev->board->slot&0xf) << 20);
/* Get some Nubus info - we will trust the card's idea
of where its memory and registers are. */
if (nubus_get_func_dir(ndev, &dir) == -1) {
printk(KERN_ERR "%s: Unable to get Nubus functional"
" directory for slot %X!\n",
dev->name, ndev->board->slot);
continue;
}
/* Get the MAC address */
if ((nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent)) == -1) {
printk(KERN_INFO "%s: Couldn't get MAC address!\n",
dev->name);
continue;
} else {
nubus_get_rsrc_mem(dev->dev_addr, &ent, 6);
}
if (useresources[cardtype] == 1) {
nubus_rewinddir(&dir);
if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, &ent) == -1) {
printk(KERN_ERR "%s: Memory offset resource"
" for slot %X not found!\n",
dev->name, ndev->board->slot);
continue;
}
nubus_get_rsrc_mem(&offset, &ent, 4);
dev->mem_start = dev->base_addr + offset;
/* yes, this is how the Apple driver does it */
dev->base_addr = dev->mem_start + 0x10000;
nubus_rewinddir(&dir);
if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, &ent) == -1) {
printk(KERN_INFO "%s: Memory length resource"
" for slot %X not found"
", probing\n",
dev->name, ndev->board->slot);
offset = mac8390_memsize(dev->mem_start);
} else {
nubus_get_rsrc_mem(&offset, &ent, 4);
}
dev->mem_end = dev->mem_start + offset;
} else {
switch (cardtype) {
case MAC8390_KINETICS:
case MAC8390_DAYNA: /* it's the same */
dev->base_addr =
(int)(ndev->board->slot_addr +
DAYNA_8390_BASE);
dev->mem_start =
(int)(ndev->board->slot_addr +
DAYNA_8390_MEM);
dev->mem_end =
dev->mem_start +
mac8390_memsize(dev->mem_start);
break;
case MAC8390_INTERLAN:
dev->base_addr =
(int)(ndev->board->slot_addr +
INTERLAN_8390_BASE);
dev->mem_start =
(int)(ndev->board->slot_addr +
INTERLAN_8390_MEM);
dev->mem_end =
dev->mem_start +
mac8390_memsize(dev->mem_start);
break;
case MAC8390_CABLETRON:
dev->base_addr =
(int)(ndev->board->slot_addr +
CABLETRON_8390_BASE);
dev->mem_start =
(int)(ndev->board->slot_addr +
CABLETRON_8390_MEM);
/* The base address is unreadable if 0x00
* has been written to the command register
* Reset the chip by writing E8390_NODMA +
* E8390_PAGE0 + E8390_STOP just to be
* sure
*/
i = (void *)dev->base_addr;
*i = 0x21;
dev->mem_end =
dev->mem_start +
mac8390_memsize(dev->mem_start);
break;
default:
printk(KERN_ERR "Card type %s is"
" unsupported, sorry\n",
ndev->board->name);
continue;
}
}
/* Do the nasty 8390 stuff */
if (!mac8390_initdev(dev, ndev, cardtype))
break;
}
if (!ndev)
goto out;
err = register_netdev(dev);
if (err)
goto out;
return dev;
out:
free_netdev(dev);
return ERR_PTR(err);
}
#ifdef MODULE
MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others");
MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver");
MODULE_LICENSE("GPL");
/* overkill, of course */
static struct net_device *dev_mac8390[15];
int init_module(void)
{
int i;
for (i = 0; i < 15; i++) {
struct net_device *dev = mac8390_probe(-1);
if (IS_ERR(dev))
break;
dev_mac890[i] = dev;
}
if (!i) {
printk(KERN_NOTICE "mac8390.c: No useable cards found, driver NOT installed.\n");
return -ENODEV;
}
return 0;
}
void cleanup_module(void)
{
int i;
for (i = 0; i < 15; i++) {
struct net_device *dev = dev_mac890[i];
if (dev) {
unregister_netdev(dev);
free_netdev(dev);
}
}
}
#endif /* MODULE */
static const struct net_device_ops mac8390_netdev_ops = {
.ndo_open = mac8390_open,
.ndo_stop = mac8390_close,
.ndo_start_xmit = __ei_start_xmit,
.ndo_tx_timeout = __ei_tx_timeout,
.ndo_get_stats = __ei_get_stats,
.ndo_set_multicast_list = __ei_set_multicast_list,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
.ndo_change_mtu = eth_change_mtu,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = ei_poll,
#endif
};
static int __init mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
enum mac8390_type type)
{
static u32 fwrd4_offsets[16]={
0, 4, 8, 12,
16, 20, 24, 28,
32, 36, 40, 44,
48, 52, 56, 60
};
static u32 back4_offsets[16]={
60, 56, 52, 48,
44, 40, 36, 32,
28, 24, 20, 16,
12, 8, 4, 0
};
static u32 fwrd2_offsets[16]={
0, 2, 4, 6,
8, 10, 12, 14,
16, 18, 20, 22,
24, 26, 28, 30
};
int access_bitmode = 0;
/* Now fill in our stuff */
dev->netdev_ops = &mac8390_netdev_ops;
/* GAR, ei_status is actually a macro even though it looks global */
ei_status.name = cardname[type];
ei_status.word16 = word16[type];
/* Cabletron's TX/RX buffers are backwards */
if (type == MAC8390_CABLETRON) {
ei_status.tx_start_page = CABLETRON_TX_START_PG;
ei_status.rx_start_page = CABLETRON_RX_START_PG;
ei_status.stop_page = CABLETRON_RX_STOP_PG;
ei_status.rmem_start = dev->mem_start;
ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256;
} else {
ei_status.tx_start_page = WD_START_PG;
ei_status.rx_start_page = WD_START_PG + TX_PAGES;
ei_status.stop_page = (dev->mem_end - dev->mem_start)/256;
ei_status.rmem_start = dev->mem_start + TX_PAGES*256;
ei_status.rmem_end = dev->mem_end;
}
/* Fill in model-specific information and functions */
switch(type) {
case MAC8390_FARALLON:
case MAC8390_APPLE:
switch(mac8390_testio(dev->mem_start)) {
case ACCESS_UNKNOWN:
printk("Don't know how to access card memory!\n");
return -ENODEV;
break;
case ACCESS_16:
/* 16 bit card, register map is reversed */
ei_status.reset_8390 = &mac8390_no_reset;
ei_status.block_input = &slow_sane_block_input;
ei_status.block_output = &slow_sane_block_output;
ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
ei_status.reg_offset = back4_offsets;
break;
case ACCESS_32:
/* 32 bit card, register map is reversed */
ei_status.reset_8390 = &mac8390_no_reset;
ei_status.block_input = &sane_block_input;
ei_status.block_output = &sane_block_output;
ei_status.get_8390_hdr = &sane_get_8390_hdr;
ei_status.reg_offset = back4_offsets;
access_bitmode = 1;
break;
}
break;
case MAC8390_ASANTE:
/* Some Asante cards pass the 32 bit test
* but overwrite system memory when run at 32 bit.
* so we run them all at 16 bit.
*/
ei_status.reset_8390 = &mac8390_no_reset;
ei_status.block_input = &slow_sane_block_input;
ei_status.block_output = &slow_sane_block_output;
ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
ei_status.reg_offset = back4_offsets;
break;
case MAC8390_CABLETRON:
/* 16 bit card, register map is short forward */
ei_status.reset_8390 = &mac8390_no_reset;
ei_status.block_input = &slow_sane_block_input;
ei_status.block_output = &slow_sane_block_output;
ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
ei_status.reg_offset = fwrd2_offsets;
break;
case MAC8390_DAYNA:
case MAC8390_KINETICS:
/* 16 bit memory, register map is forward */
/* dayna and similar */
ei_status.reset_8390 = &mac8390_no_reset;
ei_status.block_input = &dayna_block_input;
ei_status.block_output = &dayna_block_output;
ei_status.get_8390_hdr = &dayna_get_8390_hdr;
ei_status.reg_offset = fwrd4_offsets;
break;
case MAC8390_INTERLAN:
/* 16 bit memory, register map is forward */
ei_status.reset_8390 = &interlan_reset;
ei_status.block_input = &slow_sane_block_input;
ei_status.block_output = &slow_sane_block_output;
ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
ei_status.reg_offset = fwrd4_offsets;
break;
default:
printk(KERN_ERR "Card type %s is unsupported, sorry\n", ndev->board->name);
return -ENODEV;
}
__NS8390_init(dev, 0);
/* Good, done, now spit out some messages */
printk(KERN_INFO "%s: %s in slot %X (type %s)\n",
dev->name, ndev->board->name, ndev->board->slot, cardname[type]);
printk(KERN_INFO "MAC ");
{
int i;
for (i = 0; i < 6; i++) {
printk("%2.2x", dev->dev_addr[i]);
if (i < 5)
printk(":");
}
}
printk(" IRQ %d, %d KB shared memory at %#lx, %d-bit access.\n",
dev->irq, (int)((dev->mem_end - dev->mem_start)/0x1000) * 4,
dev->mem_start, access_bitmode?32:16);
return 0;
}
static int mac8390_open(struct net_device *dev)
{
__ei_open(dev);
if (request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev)) {
printk ("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
return -EAGAIN;
}
return 0;
}
static int mac8390_close(struct net_device *dev)
{
free_irq(dev->irq, dev);
__ei_close(dev);
return 0;
}
static void mac8390_no_reset(struct net_device *dev)
{
ei_status.txing = 0;
if (ei_debug > 1)
printk("reset not supported\n");
return;
}
static void interlan_reset(struct net_device *dev)
{
unsigned char *target=nubus_slot_addr(IRQ2SLOT(dev->irq));
if (ei_debug > 1)
printk("Need to reset the NS8390 t=%lu...", jiffies);
ei_status.txing = 0;
target[0xC0000] = 0;
if (ei_debug > 1)
printk("reset complete\n");
return;
}
/* dayna_memcpy_fromio/dayna_memcpy_toio */
/* directly from daynaport.c by Alan Cox */
static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, int count)
{
volatile unsigned char *ptr;
unsigned char *target=to;
from<<=1; /* word, skip overhead */
ptr=(unsigned char *)(dev->mem_start+from);
/* Leading byte? */
if (from&2) {
*target++ = ptr[-1];
ptr += 2;
count--;
}
while(count>=2)
{
*(unsigned short *)target = *(unsigned short volatile *)ptr;
ptr += 4; /* skip cruft */
target += 2;
count-=2;
}
/* Trailing byte? */
if(count)
*target = *ptr;
}
static void dayna_memcpy_tocard(struct net_device *dev, int to, const void *from, int count)
{
volatile unsigned short *ptr;
const unsigned char *src=from;
to<<=1; /* word, skip overhead */
ptr=(unsigned short *)(dev->mem_start+to);
/* Leading byte? */
if (to&2) { /* avoid a byte write (stomps on other data) */
ptr[-1] = (ptr[-1]&0xFF00)|*src++;
ptr++;
count--;
}
while(count>=2)
{
*ptr++=*(unsigned short *)src; /* Copy and */
ptr++; /* skip cruft */
src += 2;
count-=2;
}
/* Trailing byte? */
if(count)
{
/* card doesn't like byte writes */
*ptr=(*ptr&0x00FF)|(*src << 8);
}
}
/* sane block input/output */
static void sane_get_8390_hdr(struct net_device *dev,
struct e8390_pkt_hdr *hdr, int ring_page)
{
unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
memcpy_fromio((void *)hdr, (char *)dev->mem_start + hdr_start, 4);
/* Fix endianness */
hdr->count = swab16(hdr->count);
}
static void sane_block_input(struct net_device *dev, int count,
struct sk_buff *skb, int ring_offset)
{
unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
unsigned long xfer_start = xfer_base + dev->mem_start;
if (xfer_start + count > ei_status.rmem_end) {
/* We must wrap the input move. */
int semi_count = ei_status.rmem_end - xfer_start;
memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, semi_count);
count -= semi_count;
memcpy_toio(skb->data + semi_count, (char *)ei_status.rmem_start, count);
} else {
memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, count);
}
}
static void sane_block_output(struct net_device *dev, int count,
const unsigned char *buf, int start_page)
{
long shmem = (start_page - WD_START_PG)<<8;
memcpy_toio((char *)dev->mem_start + shmem, buf, count);
}
/* dayna block input/output */
static void dayna_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
{
unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
dayna_memcpy_fromcard(dev, (void *)hdr, hdr_start, 4);
/* Fix endianness */
hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8);
}
static void dayna_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
{
unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
unsigned long xfer_start = xfer_base+dev->mem_start;
/* Note the offset math is done in card memory space which is word
per long onto our space. */
if (xfer_start + count > ei_status.rmem_end)
{
/* We must wrap the input move. */
int semi_count = ei_status.rmem_end - xfer_start;
dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count);
count -= semi_count;
dayna_memcpy_fromcard(dev, skb->data + semi_count,
ei_status.rmem_start - dev->mem_start,
count);
}
else
{
dayna_memcpy_fromcard(dev, skb->data, xfer_base, count);
}
}
static void dayna_block_output(struct net_device *dev, int count, const unsigned char *buf,
int start_page)
{
long shmem = (start_page - WD_START_PG)<<8;
dayna_memcpy_tocard(dev, shmem, buf, count);
}
/* Cabletron block I/O */
static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
int ring_page)
{
unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
word_memcpy_fromcard((void *)hdr, (char *)dev->mem_start+hdr_start, 4);
/* Register endianism - fix here rather than 8390.c */
hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8);
}
static void slow_sane_block_input(struct net_device *dev, int count, struct sk_buff *skb,
int ring_offset)
{
unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
unsigned long xfer_start = xfer_base+dev->mem_start;
if (xfer_start + count > ei_status.rmem_end)
{
/* We must wrap the input move. */
int semi_count = ei_status.rmem_end - xfer_start;
word_memcpy_fromcard(skb->data, (char *)dev->mem_start +
xfer_base, semi_count);
count -= semi_count;
word_memcpy_fromcard(skb->data + semi_count,
(char *)ei_status.rmem_start, count);
}
else
{
word_memcpy_fromcard(skb->data, (char *)dev->mem_start +
xfer_base, count);
}
}
static void slow_sane_block_output(struct net_device *dev, int count, const unsigned char *buf,
int start_page)
{
long shmem = (start_page - WD_START_PG)<<8;
word_memcpy_tocard((char *)dev->mem_start + shmem, buf, count);
}
static void word_memcpy_tocard(void *tp, const void *fp, int count)
{
volatile unsigned short *to = tp;
const unsigned short *from = fp;
count++;
count/=2;
while(count--)
*to++=*from++;
}
static void word_memcpy_fromcard(void *tp, const void *fp, int count)
{
unsigned short *to = tp;
const volatile unsigned short *from = fp;
count++;
count/=2;
while(count--)
*to++=*from++;
}
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