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List: linux-mac68k
Subject: Re: CVS write access, how to get it.
From: Alfred de Wijn <A.G.deWijn () phys ! uu ! nl>
Date: 2000-05-23 8:24:10
[Download RAW message or body]
On Mon, 22 May 2000, Tony Mantler wrote:
> >It was for Dayna and Kinetics ethernet cards under the new driver. There
> >were some issues with it at first, but they all got worked out. It works
> >fine for me.
Yes, I goofed up somewhere and when it was used with two or more NICs, it
would only create eth0, and no eth1, eth2, ...
Turned out I misplaced a declaration.
> If the issues have been worked out then feel free to repost the patch, and
> I"ll have a look at it along with the rest of the patches that have been
> posted as soon as I get my Indy back up and running.
It also works fine for me, and I have both a Dayna and a Kinetics
card. I've attached the new driver (not a patch, I don't have a 2.2/2.3
source avaible here). Have fun with it.
cheers, Alfred
------------------------------------------------------------------------
Alfred G. de Wijn, Faculty of Physics and Astronomy, Utrecht University
Home address: Baarnseweg 26A, 3735 MH Bosch en Duin, The Netherlands
e-mail: A.G.deWijn@phys.uu.nl web: http://www.phys.uu.nl/~dwijn
------------------------------------------------------------------------
There is a theory which states that if ever anyone discovers
exactly what the Universe is for and why it is here, it will
instantly disappear and be replaced by something even more
bizarre and inexplicable. There is another theory which
states that this has already happened.
------------------------------------------------------------------------
["mac8390.c" (TEXT/PLAIN)]
/* 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 */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.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/malloc.h>
#include <linux/string.h>
#include <asm/system.h>
#include <asm/bitops.h>
#include <asm/io.h>
#include <asm/dma.h>
#include <asm/hwtest.h>
#include <asm/macints.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include "8390.h"
#if (LINUX_VERSION_CODE < 0x02030e)
#define net_device device
#endif
#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 APPLE_8390_BASE 0xE0000
#define DAYNA_8390_BASE 0x80000
#define DAYNA_8390_MEM 0x00000
#define KINETICS_8390_BASE 0x80000
#define KINETICS_8390_MEM 0x00000
#define CABLETRON_8390_BASE 0x90000
enum mac8390_type {
MAC8390_NONE = -1,
MAC8390_APPLE,
MAC8390_ASANTE,
MAC8390_FARALLON, /* Apple, Asante, and Farallon are all compatible */
MAC8390_CABLETRON,
MAC8390_DAYNA,
MAC8390_INTERLAN,
MAC8390_KINETICS,
MAC8390_FOCUS,
MAC8390_SONICSYS
};
static const char * cardname[] = {
"apple",
"asante",
"farallon",
"cabletron",
"dayna",
"interlan",
"kinetics",
"focus",
"sonic systems"
};
static int word16[] = {
1, /* apple */
1, /* asante */
1, /* farallon */
1, /* cabletron */
0, /* dayna */
1, /* interlan */
0, /* kinetics */
1, /* focus (??) */
1 /* sonic systems (??) */
};
/* 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 */
0, /* focus (??) */
0 /* sonic systems (??) */
};
static const char __initdata * version =
"mac8390.c: v0.2 2000-03-25 David Huggins-Daines <dhd@debian.org> and others\n";
extern int mac8390_probe(struct net_device * dev);
extern enum mac8390_type mac8390_ident(struct nubus_dev * dev);
extern int mac8390_memsize(unsigned long membase);
extern int mac8390_promaddr(struct net_device * dev);
extern int mac8390_memtest(struct net_device * dev);
extern 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 device *dev);
/* Sane (32-bit chunk memory read/write) - Apple/Asante/Farallon do this*/
static void sane_get_8390_hdr(struct 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 device *dev, void *to,
int from, int count);
static void dayna_memcpy_tocard(struct device *dev, int to,
const void *from, int count);
/* Dayna - Dayna/Kinetics use this */
static void dayna_get_8390_hdr(struct device *dev,
struct e8390_pkt_hdr *hdr, int ring_page);
static void dayna_block_input(struct device *dev, int count,
struct sk_buff *skb, int ring_offset);
static void dayna_block_output(struct device *dev, int count,
const unsigned char *buf, int start_page);
enum mac8390_type __init mac8390_ident(struct nubus_dev * dev)
{
if (dev->dr_sw == NUBUS_DRSW_ASANTE)
return MAC8390_ASANTE;
if (dev->dr_sw == NUBUS_DRSW_FARALLON)
return MAC8390_FARALLON;
if (dev->dr_sw == NUBUS_DRSW_KINETICS)
return MAC8390_KINETICS;
if (dev->dr_sw == NUBUS_DRSW_DAYNA)
return MAC8390_DAYNA;
return MAC8390_NONE;
}
int __init mac8390_memsize(unsigned long membase)
{
unsigned long flags;
int i, j;
save_flags(flags); cli();
/* 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;
}
}
restore_flags(flags);
/* in any case, we stopped once we tried one block too many,
or once we reached 32K */
return i * 0x1000;
}
int __init mac8390_promaddr(struct net_device * dev)
{
/* XXX: lame, figure out how to do this eventually */
return -1;
}
static int probed __initdata = 0;
int __init mac8390_probe(struct net_device * dev)
{
int boards_found = 0;
int version_disp = 0;
struct nubus_dev * ndev = NULL;
struct nubus_dir dir;
struct nubus_dirent ent;
int offset;
enum mac8390_type cardtype;
dev = NULL;
if (probed)
return -ENODEV;
probed++;
/* probably should check for Nubus instead */
if (!MACH_IS_MAC)
return -ENODEV;
while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, ndev))) {
if ((cardtype = mac8390_ident(ndev)) == MAC8390_NONE)
continue;
dev = init_etherdev(dev, 0);
if (dev == NULL) {
printk(KERN_ERR "Unable to allocate etherdev"
"structure!\n");
return -ENOMEM;
}
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;
}
if (useresources[cardtype] == 1) {
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;
default:
printk(KERN_ERR "Card type %s is"
" unsupported, sorry\n",
cardname[cardtype]);
return -ENODEV;
}
}
/* Get the MAC address */
nubus_rewinddir(&dir);
if ((nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent)) == -1) {
printk(KERN_INFO "%s: Ethernet address not in resources"
", probing\n",
dev->name);
if ((mac8390_promaddr(dev)) == -1) {
printk(KERN_ERR "%s: Couldn't get MAC"
" address!\n",
dev->name);
continue;
}
} else {
nubus_get_rsrc_mem(dev->dev_addr, &ent, 6);
}
/* Do the nasty 8390 stuff */
if (mac8390_initdev(dev, ndev, cardtype))
continue;
boards_found++;
}
/* We're outta here */
if (boards_found > 0)
return 0;
else
return -ENODEV;
}
#ifdef MODULE
#if LINUX_VERSION_CODE > 0x20118
MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others");
MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver");
#endif
int init_module(void)
{
if (mac8390_probe(NULL)) {
printk(KERN_NOTICE "mac8390.c: No useable cards found, driver NOT installed.\n");
return -ENODEV;
}
lock_8390_module();
return 0;
}
void cleanup_module(void)
{
/* FIXME: should probably keep track of net_device structs
somewhere and unregister them here? */
unlock_8390_module();
}
#endif /* MODULE */
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
};
/* Cabletron cards use this, but they aren't supported in mac8390.c */
#if 0
static u32 fwrd2_offsets[16]={
0, 2, 4, 6,
8, 10, 12, 14,
16, 18, 20, 22,
24, 26, 28, 30
};
#endif /* 0 */
/* 8390 specific init for dev - allocates dev->priv */
if (ethdev_init(dev)) {
printk(KERN_ERR "%s: Unable to allocate memory for dev->priv!\n", dev->name);
return -ENOMEM;
}
/* Now fill in our stuff */
dev->open = &mac8390_open;
dev->stop = &mac8390_close;
/* 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;
dev->rmem_start = dev->mem_start;
dev->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;
dev->rmem_start = dev->mem_start + TX_PAGES*256;
dev->rmem_end = dev->mem_end;
}
/* Fill in model-specific information and functions */
switch(type) {
case MAC8390_APPLE:
case MAC8390_ASANTE:
case MAC8390_FARALLON:
/* 32 bit card, register map is reversed */
/* sane */
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;
break;
case MAC8390_DAYNA:
case MAC8390_KINETICS:
/* 16 bit memory */
/* 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;
default:
printk(KERN_ERR "Card type %s is unsupported, sorry\n", cardname[type]);
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, shared memory at %#lx-%#lx.\n",
dev->irq, dev->mem_start, dev->mem_end-1);
return 0;
}
static int mac8390_open(struct 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;
}
MOD_INC_USE_COUNT;
return 0;
}
static int mac8390_close(struct device *dev)
{
free_irq(dev->irq, dev);
ei_close(dev);
MOD_DEC_USE_COUNT;
return 0;
}
static void mac8390_no_reset(struct device *dev)
{
ei_status.txing = 0;
if (ei_debug > 1)
printk("reset not supported\n");
return;
}
/* dayna_memcpy_fromio/dayna_memcpy_toio */
/* directly from daynaport.c by Alan Cox */
static void dayna_memcpy_fromcard(struct device *dev, void *to, int from, int count)
{
volatile unsigned short *ptr;
unsigned short *target=to;
from<<=1; /* word, skip overhead */
ptr=(unsigned short *)(dev->mem_start+from);
/* Leading byte? */
if (from&2) {
*((char *)target)++ = *(((char *)ptr++)-1);
count--;
}
while(count>=2)
{
*target++=*ptr++; /* Copy and */
ptr++; /* skip cruft */
count-=2;
}
/* Trailing byte? */
if(count)
{
/* Big endian */
unsigned short v=*ptr;
*((char *)target)=v>>8;
}
}
static void dayna_memcpy_tocard(struct device *dev, int to, const void *from, int \
count) {
volatile unsigned short *ptr;
const unsigned short *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)|*((unsigned char *)src)++;
ptr++;
count--;
}
while(count>=2)
{
*ptr++=*src++; /* Copy and */
ptr++; /* skip cruft */
count-=2;
}
/* Trailing byte? */
if(count)
{
/* Big endian */
unsigned short v=*src;
/* card doesn't like byte writes */
*ptr=(*ptr&0x00FF)|(v&0xFF00);
}
}
/* sane block input/output */
static void sane_get_8390_hdr(struct 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 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 > dev->rmem_end) {
/* We must wrap the input move. */
int semi_count = dev->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 *)dev->rmem_start, count);
} else {
memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, count);
}
}
static void sane_block_output(struct 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 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 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 > dev->rmem_end)
{
/* We must wrap the input move. */
int semi_count = dev->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,
dev->rmem_start - dev->mem_start, count);
}
else
{
dayna_memcpy_fromcard(dev, skb->data, xfer_base, count);
}
}
static void dayna_block_output(struct 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);
}
--
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