static int arcrimi_status(struct net_device *dev)
{
struct arcnet_local *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->mem_start + 0x800;
return ASTATUS();
}
static int arcrimi_status(struct net_device *dev)
{
struct arcnet_local *lp = (struct arcnet_local *) dev->priv;
void *ioaddr = lp->mem_start + 0x800;
return ASTATUS();
}
/*
* 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 com90io_reset(struct net_device *dev, int really_reset)
{
struct arcnet_local *lp = netdev_priv(dev);
short ioaddr = dev->base_addr;
BUGMSG(D_INIT, "Resetting %s (status=%02Xh)\n", dev->name, ASTATUS());
if (really_reset) {
/* reset the card */
inb(_RESET);
mdelay(RESETtime);
}
/* Set the thing to IO-mapped, 8-bit mode */
lp->config = (0x1C | IOMAPflag) & ~ENABLE16flag;
SETCONF();
ACOMMAND(CFLAGScmd | RESETclear); /* clear flags & end reset */
ACOMMAND(CFLAGScmd | CONFIGclear);
/* verify that the ARCnet signature byte is present */
if (get_buffer_byte(dev, 0) != TESTvalue) {
BUGMSG(D_NORMAL, "reset failed: TESTvalue not present.\n");
return 1;
}
/* enable extended (512-byte) packets */
ACOMMAND(CONFIGcmd | EXTconf);
/* done! return success. */
return 0;
}
/*
* 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;
BUGMSG(D_INIT, "Resetting (status=%02Xh)\n", ASTATUS());
if (really_reset) {
/* reset the card */
inb(_RESET);
mdelay(RESETtime);
}
ACOMMAND(CFLAGScmd | RESETclear); /* clear flags & end reset */
ACOMMAND(CFLAGScmd | CONFIGclear);
/* don't do this until we verify that it doesn't hurt older cards! */
/* outb(inb(_CONFIG) | ENABLE16flag, _CONFIG); */
/* verify that the ARCnet signature byte is present */
if (readb(lp->mem_start) != TESTvalue) {
if (really_reset)
BUGMSG(D_NORMAL, "reset failed: TESTvalue not present.\n");
return 1;
}
/* enable extended (512-byte) packets */
ACOMMAND(CONFIGcmd | EXTconf);
/* clean out all the memory to make debugging make more sense :) */
BUGLVL(D_DURING)
memset_io(lp->mem_start, 0x42, 2048);
/* done! return success. */
return 0;
}
/*
* We cannot (yet) probe for an IO mapped card, although we can check that
* it's where we were told it was, and even do autoirq.
*/
static int __init com20020isa_probe(struct net_device *dev)
{
int ioaddr;
unsigned long airqmask;
struct arcnet_local *lp = dev->priv;
#ifndef MODULE
arcnet_init();
#endif
BUGLVL(D_NORMAL) printk(VERSION);
ioaddr = dev->base_addr;
if (!ioaddr) {
BUGMSG(D_NORMAL, "No autoprobe (yet) for IO mapped cards; you "
"must specify the base address!\n");
return -ENODEV;
}
if (check_region(ioaddr, ARCNET_TOTAL_SIZE)) {
BUGMSG(D_NORMAL, "IO region %xh-%xh already allocated.\n",
ioaddr, ioaddr + ARCNET_TOTAL_SIZE - 1);
return -ENXIO;
}
if (ASTATUS() == 0xFF) {
BUGMSG(D_NORMAL, "IO address %x empty\n", ioaddr);
return -ENODEV;
}
if (com20020_check(dev))
return -ENODEV;
if (!dev->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.
*/
BUGMSG(D_INIT_REASONS, "intmask was %02Xh\n", inb(_INTMASK));
outb(0, _INTMASK);
airqmask = probe_irq_on();
outb(NORXflag, _INTMASK);
udelay(1);
outb(0, _INTMASK);
dev->irq = probe_irq_off(airqmask);
if (dev->irq <= 0) {
BUGMSG(D_INIT_REASONS, "Autoprobe IRQ failed first time\n");
airqmask = probe_irq_on();
outb(NORXflag, _INTMASK);
udelay(5);
outb(0, _INTMASK);
dev->irq = probe_irq_off(airqmask);
if (dev->irq <= 0) {
BUGMSG(D_NORMAL, "Autoprobe IRQ failed.\n");
return -ENODEV;
}
}
}
lp->card_name = "ISA COM20020";
return com20020_found(dev, 0);
}
static int com90xx_reset(struct net_device *dev, int really_reset)
{
struct arcnet_local *lp = netdev_priv(dev);
short ioaddr = dev->base_addr;
BUGMSG(D_INIT, "Resetting (status=%02Xh)\n", ASTATUS());
if (really_reset) {
inb(_RESET);
mdelay(RESETtime);
}
ACOMMAND(CFLAGScmd | RESETclear);
ACOMMAND(CFLAGScmd | CONFIGclear);
if (readb(lp->mem_start) != TESTvalue) {
if (really_reset)
BUGMSG(D_NORMAL, "reset failed: TESTvalue not present.\n");
return 1;
}
ACOMMAND(CONFIGcmd | EXTconf);
BUGLVL(D_DURING)
memset_io(lp->mem_start, 0x42, 2048);
return 0;
}
static int __devinit com20020pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct net_device *dev;
struct arcnet_local *lp;
int ioaddr, err;
if (pci_enable_device(pdev))
return -EIO;
dev = dev_alloc(device ? : "arc%d", &err);
if (!dev)
return err;
lp = dev->priv = kmalloc(sizeof(struct arcnet_local), GFP_KERNEL);
if (!lp) {
err = -ENOMEM;
goto out_dev;
}
memset(lp, 0, sizeof(struct arcnet_local));
pci_set_drvdata(pdev, dev);
ioaddr = pci_resource_start(pdev, 2);
dev->base_addr = ioaddr;
dev->irq = pdev->irq;
dev->dev_addr[0] = node;
lp->card_name = pdev->name;
lp->card_flags = id->driver_data;
lp->backplane = backplane;
lp->clockp = clockp & 7;
lp->clockm = clockm & 3;
lp->timeout = timeout;
lp->hw.open_close_ll = com20020pci_open_close;
if (check_region(ioaddr, ARCNET_TOTAL_SIZE)) {
BUGMSG(D_INIT, "IO region %xh-%xh already allocated.\n",
ioaddr, ioaddr + ARCNET_TOTAL_SIZE - 1);
err = -EBUSY;
goto out_priv;
}
if (ASTATUS() == 0xFF) {
BUGMSG(D_NORMAL, "IO address %Xh was reported by PCI BIOS, "
"but seems empty!\n", ioaddr);
err = -EIO;
goto out_priv;
}
if (com20020_check(dev)) {
err = -EIO;
goto out_priv;
}
if ((err = com20020_found(dev, SA_SHIRQ)) != 0)
goto out_priv;
return 0;
out_priv:
kfree(dev->priv);
out_dev:
kfree(dev);
return err;
}
/*
* We cannot (yet) probe for an IO mapped card, although we can check that
* it's where we were told it was, and even do autoirq.
*/
static int __init com20020isa_probe(struct net_device *dev)
{
int ioaddr;
unsigned long airqmask;
struct arcnet_local *lp = netdev_priv(dev);
int err;
BUGLVL(D_NORMAL) printk(VERSION);
ioaddr = dev->base_addr;
if (!ioaddr) {
BUGMSG(D_NORMAL, "No autoprobe (yet) for IO mapped cards; you "
"must specify the base address!\n");
return -ENODEV;
}
if (!request_region(ioaddr, ARCNET_TOTAL_SIZE, "arcnet (COM20020)")) {
BUGMSG(D_NORMAL, "IO region %xh-%xh already allocated.\n",
ioaddr, ioaddr + ARCNET_TOTAL_SIZE - 1);
return -ENXIO;
}
if (ASTATUS() == 0xFF) {
BUGMSG(D_NORMAL, "IO address %x empty\n", ioaddr);
err = -ENODEV;
goto out;
}
if (com20020_check(dev)) {
err = -ENODEV;
goto out;
}
if (!dev->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.
*/
BUGMSG(D_INIT_REASONS, "intmask was %02Xh\n", inb(_INTMASK));
outb(0, _INTMASK);
airqmask = probe_irq_on();
outb(NORXflag, _INTMASK);
udelay(1);
outb(0, _INTMASK);
dev->irq = probe_irq_off(airqmask);
<<<<<<< HEAD
/*
* 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 arcrimi_reset(struct net_device *dev, int really_reset)
{
struct arcnet_local *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->mem_start + 0x800;
BUGMSG(D_INIT, "Resetting %s (status=%02Xh)\n", dev->name, ASTATUS());
if (really_reset) {
writeb(TESTvalue, ioaddr - 0x800); /* fake reset */
return 0;
}
ACOMMAND(CFLAGScmd | RESETclear); /* clear flags & end reset */
ACOMMAND(CFLAGScmd | CONFIGclear);
/* enable extended (512-byte) packets */
ACOMMAND(CONFIGcmd | EXTconf);
/* done! return success. */
return 0;
}
static int com90io_status(struct net_device *dev)
{
short ioaddr = dev->base_addr;
return ASTATUS();
}
/*
* We cannot probe for an IO mapped card either, although we can check that
* it's where we were told it was, and even autoirq
*/
static int __init com90io_probe(struct net_device *dev)
{
int ioaddr = dev->base_addr, status;
unsigned long airqmask;
BUGLVL(D_NORMAL) printk(VERSION);
BUGLVL(D_NORMAL) printk("E-mail me if you actually test this driver, please!\n");
if (!ioaddr) {
BUGMSG(D_NORMAL, "No autoprobe for IO mapped cards; you "
"must specify the base address!\n");
return -ENODEV;
}
if (!request_region(ioaddr, ARCNET_TOTAL_SIZE, "com90io probe")) {
BUGMSG(D_INIT_REASONS, "IO request_region %x-%x failed.\n",
ioaddr, ioaddr + ARCNET_TOTAL_SIZE - 1);
return -ENXIO;
}
if (ASTATUS() == 0xFF) {
BUGMSG(D_INIT_REASONS, "IO address %x empty\n", ioaddr);
goto err_out;
}
inb(_RESET);
mdelay(RESETtime);
status = ASTATUS();
if ((status & 0x9D) != (NORXflag | RECONflag | TXFREEflag | RESETflag)) {
BUGMSG(D_INIT_REASONS, "Status invalid (%Xh).\n", status);
goto err_out;
}
BUGMSG(D_INIT_REASONS, "Status after reset: %X\n", status);
ACOMMAND(CFLAGScmd | RESETclear | CONFIGclear);
BUGMSG(D_INIT_REASONS, "Status after reset acknowledged: %X\n", status);
status = ASTATUS();
if (status & RESETflag) {
BUGMSG(D_INIT_REASONS, "Eternal reset (status=%Xh)\n", status);
goto err_out;
}
outb((0x16 | IOMAPflag) & ~ENABLE16flag, _CONFIG);
/* Read first loc'n of memory */
outb(AUTOINCflag, _ADDR_HI);
outb(0, _ADDR_LO);
if ((status = inb(_MEMDATA)) != 0xd1) {
BUGMSG(D_INIT_REASONS, "Signature byte not found"
" (%Xh instead).\n", status);
goto err_out;
}
if (!dev->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();
outb(NORXflag, _INTMASK);
udelay(1);
outb(0, _INTMASK);
dev->irq = probe_irq_off(airqmask);
if (dev->irq <= 0) {
BUGMSG(D_INIT_REASONS, "Autoprobe IRQ failed\n");
goto err_out;
}
}
release_region(ioaddr, ARCNET_TOTAL_SIZE); /* end of probing */
return com90io_found(dev);
err_out:
release_region(ioaddr, ARCNET_TOTAL_SIZE);
return -ENODEV;
}
static int __devinit com20020pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct net_device *dev;
struct arcnet_local *lp;
int ioaddr, err;
if (pci_enable_device(pdev))
return -EIO;
dev = alloc_arcdev(device);
if (!dev)
return -ENOMEM;
lp = dev->priv;
pci_set_drvdata(pdev, dev);
// SOHARD needs PCI base addr 4
if (pdev->vendor==0x10B5) {
BUGMSG(D_NORMAL, "SOHARD\n");
ioaddr = pci_resource_start(pdev, 4);
}
else {
BUGMSG(D_NORMAL, "Contemporary Controls\n");
ioaddr = pci_resource_start(pdev, 2);
}
if (!request_region(ioaddr, ARCNET_TOTAL_SIZE, "com20020-pci")) {
BUGMSG(D_INIT, "IO region %xh-%xh already allocated.\n",
ioaddr, ioaddr + ARCNET_TOTAL_SIZE - 1);
err = -EBUSY;
goto out_dev;
}
// Dummy access after Reset
// ARCNET controller needs this access to detect bustype
outb(0x00,ioaddr+1);
inb(ioaddr+1);
dev->base_addr = ioaddr;
dev->irq = pdev->irq;
dev->dev_addr[0] = node;
lp->card_name = "PCI COM20020";
lp->card_flags = id->driver_data;
lp->backplane = backplane;
lp->clockp = clockp & 7;
lp->clockm = clockm & 3;
lp->timeout = timeout;
lp->hw.owner = THIS_MODULE;
if (ASTATUS() == 0xFF) {
BUGMSG(D_NORMAL, "IO address %Xh was reported by PCI BIOS, "
"but seems empty!\n", ioaddr);
err = -EIO;
goto out_port;
}
if (com20020_check(dev)) {
err = -EIO;
goto out_port;
}
if ((err = com20020_found(dev, IRQF_SHARED)) != 0)
goto out_port;
return 0;
out_port:
release_region(ioaddr, ARCNET_TOTAL_SIZE);
out_dev:
free_netdev(dev);
return err;
}
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;
}
BUGLVL(D_NORMAL) printk(VERSION);
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;
numprint = -1;
for (port = &ports[0]; port - ports < numports; port++) {
numprint++;
numprint %= 8;
if (!numprint) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S1: ");
}
BUGMSG2(D_INIT, "%Xh ", *port);
ioaddr = *port;
if (!request_region(*port, ARCNET_TOTAL_SIZE, "arcnet (90xx)")) {
BUGMSG2(D_INIT_REASONS, "(request_region)\n");
BUGMSG2(D_INIT_REASONS, "S1: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
*port-- = ports[--numports];
continue;
}
if (ASTATUS() == 0xFF) {
BUGMSG2(D_INIT_REASONS, "(empty)\n");
BUGMSG2(D_INIT_REASONS, "S1: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
release_region(*port, ARCNET_TOTAL_SIZE);
*port-- = ports[--numports];
continue;
}
inb(_RESET);
BUGMSG2(D_INIT_REASONS, "\n");
BUGMSG2(D_INIT_REASONS, "S1: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
}
BUGMSG2(D_INIT, "\n");
if (!numports) {
BUGMSG2(D_NORMAL, "S1: No ARCnet cards found.\n");
kfree(shmems);
kfree(iomem);
return;
}
numprint = -1;
for (port = &ports[0]; port < ports + numports; port++) {
numprint++;
numprint %= 8;
if (!numprint) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S2: ");
}
BUGMSG2(D_INIT, "%Xh ", *port);
}
BUGMSG2(D_INIT, "\n");
mdelay(RESETtime);
numprint = -1;
for (index = 0, p = &shmems[0]; index < numshmems; p++, index++) {
void __iomem *base;
numprint++;
numprint %= 8;
if (!numprint) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S3: ");
}
BUGMSG2(D_INIT, "%lXh ", *p);
if (!request_mem_region(*p, MIRROR_SIZE, "arcnet (90xx)")) {
BUGMSG2(D_INIT_REASONS, "(request_mem_region)\n");
BUGMSG2(D_INIT_REASONS, "Stage 3: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
goto out;
}
base = ioremap(*p, MIRROR_SIZE);
if (!base) {
BUGMSG2(D_INIT_REASONS, "(ioremap)\n");
BUGMSG2(D_INIT_REASONS, "Stage 3: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
goto out1;
}
if (readb(base) != TESTvalue) {
BUGMSG2(D_INIT_REASONS, "(%02Xh != %02Xh)\n",
readb(base), TESTvalue);
BUGMSG2(D_INIT_REASONS, "S3: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
goto out2;
}
writeb(0x42, base);
if (readb(base) != 0x42) {
BUGMSG2(D_INIT_REASONS, "(read only)\n");
BUGMSG2(D_INIT_REASONS, "S3: ");
goto out2;
}
BUGMSG2(D_INIT_REASONS, "\n");
BUGMSG2(D_INIT_REASONS, "S3: ");
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--;
}
BUGMSG2(D_INIT, "\n");
if (!numshmems) {
BUGMSG2(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;
}
numprint = -1;
for (p = &shmems[0]; p < shmems + numshmems; p++) {
numprint++;
numprint %= 8;
if (!numprint) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S4: ");
}
BUGMSG2(D_INIT, "%lXh ", *p);
}
BUGMSG2(D_INIT, "\n");
numprint = -1;
for (port = &ports[0]; port < ports + numports; port++) {
int found = 0;
numprint++;
numprint %= 8;
if (!numprint) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S5: ");
}
BUGMSG2(D_INIT, "%Xh ", *port);
ioaddr = *port;
status = ASTATUS();
if ((status & 0x9D)
!= (NORXflag | RECONflag | TXFREEflag | RESETflag)) {
BUGMSG2(D_INIT_REASONS, "(status=%Xh)\n", status);
BUGMSG2(D_INIT_REASONS, "S5: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
release_region(*port, ARCNET_TOTAL_SIZE);
*port-- = ports[--numports];
continue;
}
ACOMMAND(CFLAGScmd | RESETclear | CONFIGclear);
status = ASTATUS();
if (status & RESETflag) {
BUGMSG2(D_INIT_REASONS, " (eternal reset, status=%Xh)\n",
status);
BUGMSG2(D_INIT_REASONS, "S5: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
release_region(*port, ARCNET_TOTAL_SIZE);
*port-- = ports[--numports];
continue;
}
if (!irq) {
airqmask = probe_irq_on();
AINTMASK(NORXflag);
udelay(1);
AINTMASK(0);
airq = probe_irq_off(airqmask);
if (airq <= 0) {
BUGMSG2(D_INIT_REASONS, "(airq=%d)\n", airq);
BUGMSG2(D_INIT_REASONS, "S5: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
release_region(*port, ARCNET_TOTAL_SIZE);
*port-- = ports[--numports];
continue;
}
} else {
airq = irq;
}
BUGMSG2(D_INIT, "(%d,", airq);
openparen = 1;
#ifdef FAST_PROBE
if (numports > 1 || numshmems > 1) {
inb(_RESET);
mdelay(RESETtime);
} else {
writeb(TESTvalue, iomem[0]);
}
#else
inb(_RESET);
mdelay(RESETtime);
#endif
for (index = 0; index < numshmems; index++) {
u_long ptr = shmems[index];
void __iomem *base = iomem[index];
if (readb(base) == TESTvalue) {
BUGMSG2(D_INIT, "%lXh)\n", *p);
openparen = 0;
if (com90xx_found(*port, airq, ptr, base) == 0)
found = 1;
numprint = -1;
shmems[index] = shmems[--numshmems];
iomem[index] = iomem[numshmems];
break;
} else {
BUGMSG2(D_INIT_REASONS, "%Xh-", readb(base));
}
}
if (openparen) {
BUGLVL(D_INIT) printk("no matching shmem)\n");
BUGLVL(D_INIT_REASONS) printk("S5: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
}
if (!found)
release_region(*port, ARCNET_TOTAL_SIZE);
*port-- = ports[--numports];
}
BUGLVL(D_INIT_REASONS) printk("\n");
for (index = 0; index < numshmems; index++) {
writeb(TESTvalue, iomem[index]);
iounmap(iomem[index]);
release_mem_region(shmems[index], MIRROR_SIZE);
}
kfree(shmems);
kfree(iomem);
}
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;
}
BUGLVL(D_NORMAL) printk(VERSION);
/* 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) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S1: ");
}
BUGMSG2(D_INIT, "%Xh ", *port);
ioaddr = *port;
if (!request_region(*port, ARCNET_TOTAL_SIZE, "arcnet (90xx)")) {
BUGMSG2(D_INIT_REASONS, "(request_region)\n");
BUGMSG2(D_INIT_REASONS, "S1: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
*port-- = ports[--numports];
continue;
}
if (ASTATUS() == 0xFF) {
BUGMSG2(D_INIT_REASONS, "(empty)\n");
BUGMSG2(D_INIT_REASONS, "S1: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
release_region(*port, ARCNET_TOTAL_SIZE);
*port-- = ports[--numports];
continue;
}
inb(_RESET); /* begin resetting card */
BUGMSG2(D_INIT_REASONS, "\n");
BUGMSG2(D_INIT_REASONS, "S1: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
}
BUGMSG2(D_INIT, "\n");
if (!numports) {
BUGMSG2(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) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S2: ");
}
BUGMSG2(D_INIT, "%Xh ", *port);
}
BUGMSG2(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) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S3: ");
}
BUGMSG2(D_INIT, "%lXh ", *p);
if (!request_mem_region(*p, MIRROR_SIZE, "arcnet (90xx)")) {
BUGMSG2(D_INIT_REASONS, "(request_mem_region)\n");
BUGMSG2(D_INIT_REASONS, "Stage 3: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
goto out;
}
base = ioremap(*p, MIRROR_SIZE);
if (!base) {
BUGMSG2(D_INIT_REASONS, "(ioremap)\n");
BUGMSG2(D_INIT_REASONS, "Stage 3: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
goto out1;
}
if (readb(base) != TESTvalue) {
BUGMSG2(D_INIT_REASONS, "(%02Xh != %02Xh)\n",
readb(base), TESTvalue);
BUGMSG2(D_INIT_REASONS, "S3: ");
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.
*/
writeb(0x42, base);
if (readb(base) != 0x42) {
BUGMSG2(D_INIT_REASONS, "(read only)\n");
BUGMSG2(D_INIT_REASONS, "S3: ");
goto out2;
}
BUGMSG2(D_INIT_REASONS, "\n");
BUGMSG2(D_INIT_REASONS, "S3: ");
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--;
}
BUGMSG2(D_INIT, "\n");
if (!numshmems) {
BUGMSG2(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) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S4: ");
}
BUGMSG2(D_INIT, "%lXh ", *p);
}
BUGMSG2(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) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S5: ");
}
BUGMSG2(D_INIT, "%Xh ", *port);
ioaddr = *port;
status = ASTATUS();
if ((status & 0x9D)
!= (NORXflag | RECONflag | TXFREEflag | RESETflag)) {
BUGMSG2(D_INIT_REASONS, "(status=%Xh)\n", status);
BUGMSG2(D_INIT_REASONS, "S5: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
release_region(*port, ARCNET_TOTAL_SIZE);
*port-- = ports[--numports];
continue;
}
ACOMMAND(CFLAGScmd | RESETclear | CONFIGclear);
status = ASTATUS();
if (status & RESETflag) {
BUGMSG2(D_INIT_REASONS, " (eternal reset, status=%Xh)\n",
status);
BUGMSG2(D_INIT_REASONS, "S5: ");
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();
AINTMASK(NORXflag);
udelay(1);
AINTMASK(0);
airq = probe_irq_off(airqmask);
if (airq <= 0) {
BUGMSG2(D_INIT_REASONS, "(airq=%d)\n", airq);
BUGMSG2(D_INIT_REASONS, "S5: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
release_region(*port, ARCNET_TOTAL_SIZE);
*port-- = ports[--numports];
continue;
}
} else {
airq = irq;
}
BUGMSG2(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) {
inb(_RESET);
mdelay(RESETtime);
} else {
/* just one shmem and port, assume they match */
writeb(TESTvalue, iomem[0]);
}
#else
inb(_RESET);
mdelay(RESETtime);
#endif
for (index = 0; index < numshmems; index++) {
u_long ptr = shmems[index];
void __iomem *base = iomem[index];
if (readb(base) == TESTvalue) { /* found one */
BUGMSG2(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 {
BUGMSG2(D_INIT_REASONS, "%Xh-", readb(base));
}
}
if (openparen) {
BUGLVL(D_INIT) printk("no matching shmem)\n");
BUGLVL(D_INIT_REASONS) printk("S5: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
}
if (!found)
release_region(*port, ARCNET_TOTAL_SIZE);
*port-- = ports[--numports];
}
BUGLVL(D_INIT_REASONS) printk("\n");
/* Now put back TESTvalue on all leftover shmems. */
for (index = 0; index < numshmems; index++) {
writeb(TESTvalue, iomem[index]);
iounmap(iomem[index]);
release_mem_region(shmems[index], MIRROR_SIZE);
}
kfree(shmems);
kfree(iomem);
}
static int __init com20020isa_probe(struct net_device *dev)
{
int ioaddr;
unsigned long airqmask;
struct arcnet_local *lp = netdev_priv(dev);
int err;
BUGLVL(D_NORMAL) printk(VERSION);
ioaddr = dev->base_addr;
if (!ioaddr) {
BUGMSG(D_NORMAL, "No autoprobe (yet) for IO mapped cards; you "
"must specify the base address!\n");
return -ENODEV;
}
if (!request_region(ioaddr, ARCNET_TOTAL_SIZE, "arcnet (COM20020)")) {
BUGMSG(D_NORMAL, "IO region %xh-%xh already allocated.\n",
ioaddr, ioaddr + ARCNET_TOTAL_SIZE - 1);
return -ENXIO;
}
if (ASTATUS() == 0xFF) {
BUGMSG(D_NORMAL, "IO address %x empty\n", ioaddr);
err = -ENODEV;
goto out;
}
if (com20020_check(dev)) {
err = -ENODEV;
goto out;
}
if (!dev->irq) {
BUGMSG(D_INIT_REASONS, "intmask was %02Xh\n", inb(_INTMASK));
outb(0, _INTMASK);
airqmask = probe_irq_on();
outb(NORXflag, _INTMASK);
udelay(1);
outb(0, _INTMASK);
dev->irq = probe_irq_off(airqmask);
if ((int)dev->irq <= 0) {
BUGMSG(D_INIT_REASONS, "Autoprobe IRQ failed first time\n");
airqmask = probe_irq_on();
outb(NORXflag, _INTMASK);
udelay(5);
outb(0, _INTMASK);
dev->irq = probe_irq_off(airqmask);
if ((int)dev->irq <= 0) {
BUGMSG(D_NORMAL, "Autoprobe IRQ failed.\n");
err = -ENODEV;
goto out;
}
}
}
lp->card_name = "ISA COM20020";
if ((err = com20020_found(dev, 0)) != 0)
goto out;
return 0;
out:
release_region(ioaddr, ARCNET_TOTAL_SIZE);
return err;
}
int __init com90xx_probe(struct net_device *dev)
{
int count, status, ioaddr, numprint, airq, retval = -ENODEV,
openparen = 0;
unsigned long airqmask;
int ports[(0x3f0 - 0x200) / 16 + 1] =
{0};
u_long shmems[(0xFF800 - 0xA0000) / 2048 + 1] =
{0};
int numports, numshmems, *port;
u_long *shmem;
if (!dev && com90xx_skip_probe)
return -ENODEV;
#ifndef MODULE
arcnet_init();
#endif
BUGLVL(D_NORMAL) printk(VERSION);
/* set up the arrays where we'll store the possible probe addresses */
numports = numshmems = 0;
if (dev && dev->base_addr)
ports[numports++] = dev->base_addr;
else
for (count = 0x200; count <= 0x3f0; count += 16)
ports[numports++] = count;
if (dev && dev->mem_start)
shmems[numshmems++] = dev->mem_start;
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) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S1: ");
}
BUGMSG2(D_INIT, "%Xh ", *port);
ioaddr = *port;
if (check_region(*port, ARCNET_TOTAL_SIZE)) {
BUGMSG2(D_INIT_REASONS, "(check_region)\n");
BUGMSG2(D_INIT_REASONS, "S1: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
*port = ports[numports - 1];
numports--;
port--;
continue;
}
if (ASTATUS() == 0xFF) {
BUGMSG2(D_INIT_REASONS, "(empty)\n");
BUGMSG2(D_INIT_REASONS, "S1: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
*port = ports[numports - 1];
numports--;
port--;
continue;
}
inb(_RESET); /* begin resetting card */
BUGMSG2(D_INIT_REASONS, "\n");
BUGMSG2(D_INIT_REASONS, "S1: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
}
BUGMSG2(D_INIT, "\n");
if (!numports) {
BUGMSG2(D_NORMAL, "S1: No ARCnet cards found.\n");
return -ENODEV;
}
/* 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) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S2: ");
}
BUGMSG2(D_INIT, "%Xh ", *port);
}
BUGMSG2(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 (shmem = &shmems[0]; shmem - shmems < numshmems; shmem++) {
u_long ptr = *shmem;
numprint++;
numprint %= 8;
if (!numprint) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S3: ");
}
BUGMSG2(D_INIT, "%lXh ", *shmem);
if (check_mem_region(*shmem, BUFFER_SIZE)) {
BUGMSG2(D_INIT_REASONS, "(check_mem_region)\n");
BUGMSG2(D_INIT_REASONS, "Stage 3: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
*shmem = shmems[numshmems - 1];
numshmems--;
shmem--;
continue;
}
if (isa_readb(ptr) != TESTvalue) {
BUGMSG2(D_INIT_REASONS, "(%02Xh != %02Xh)\n",
isa_readb(ptr), TESTvalue);
BUGMSG2(D_INIT_REASONS, "S3: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
*shmem = shmems[numshmems - 1];
numshmems--;
shmem--;
continue;
}
/* 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.
*/
isa_writeb(0x42, ptr);
if (isa_readb(ptr) != 0x42) {
BUGMSG2(D_INIT_REASONS, "(read only)\n");
BUGMSG2(D_INIT_REASONS, "S3: ");
*shmem = shmems[numshmems - 1];
numshmems--;
shmem--;
continue;
}
BUGMSG2(D_INIT_REASONS, "\n");
BUGMSG2(D_INIT_REASONS, "S3: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
}
BUGMSG2(D_INIT, "\n");
if (!numshmems) {
BUGMSG2(D_NORMAL, "S3: No ARCnet cards found.\n");
return -ENODEV;
}
/* Stage 4: something of a dummy, to report the shmems that are
* still possible after stage 3.
*/
numprint = -1;
for (shmem = &shmems[0]; shmem - shmems < numshmems; shmem++) {
numprint++;
numprint %= 8;
if (!numprint) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S4: ");
}
BUGMSG2(D_INIT, "%lXh ", *shmem);
}
BUGMSG2(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++) {
numprint++;
numprint %= 8;
if (!numprint) {
BUGMSG2(D_INIT, "\n");
BUGMSG2(D_INIT, "S5: ");
}
BUGMSG2(D_INIT, "%Xh ", *port);
ioaddr = *port;
status = ASTATUS();
if ((status & 0x9D)
!= (NORXflag | RECONflag | TXFREEflag | RESETflag)) {
BUGMSG2(D_INIT_REASONS, "(status=%Xh)\n", status);
BUGMSG2(D_INIT_REASONS, "S5: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
*port = ports[numports - 1];
numports--;
port--;
continue;
}
ACOMMAND(CFLAGScmd | RESETclear | CONFIGclear);
status = ASTATUS();
if (status & RESETflag) {
BUGMSG2(D_INIT_REASONS, " (eternal reset, status=%Xh)\n",
status);
BUGMSG2(D_INIT_REASONS, "S5: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
*port = ports[numports - 1];
numports--;
port--;
continue;
}
/* skip this completely if an IRQ was given, because maybe
* we're on a machine that locks during autoirq!
*/
if (!dev || !dev->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();
AINTMASK(NORXflag);
udelay(1);
AINTMASK(0);
airq = probe_irq_off(airqmask);
if (airq <= 0) {
BUGMSG2(D_INIT_REASONS, "(airq=%d)\n", airq);
BUGMSG2(D_INIT_REASONS, "S5: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
*port = ports[numports - 1];
numports--;
port--;
continue;
}
} else {
airq = dev->irq;
}
BUGMSG2(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) {
inb(_RESET);
mdelay(RESETtime);
} else {
/* just one shmem and port, assume they match */
isa_writeb(TESTvalue, shmems[0]);
}
#else
inb(_RESET);
mdelay(RESETtime);
#endif
for (shmem = &shmems[0]; shmem - shmems < numshmems; shmem++) {
u_long ptr = *shmem;
if (isa_readb(ptr) == TESTvalue) { /* found one */
BUGMSG2(D_INIT, "%lXh)\n", *shmem);
openparen = 0;
/* register the card */
retval = com90xx_found(dev, *port, airq, *shmem);
numprint = -1;
/* remove shmem from the list */
*shmem = shmems[numshmems - 1];
numshmems--;
break; /* go to the next I/O port */
} else {
BUGMSG2(D_INIT_REASONS, "%Xh-", isa_readb(ptr));
}
}
if (openparen) {
BUGLVL(D_INIT) printk("no matching shmem)\n");
BUGLVL(D_INIT_REASONS) printk("S5: ");
BUGLVL(D_INIT_REASONS) numprint = 0;
}
*port = ports[numports - 1];
numports--;
port--;
}
BUGLVL(D_INIT_REASONS) printk("\n");
/* Now put back TESTvalue on all leftover shmems. */
for (shmem = &shmems[0]; shmem - shmems < numshmems; shmem++)
isa_writeb(TESTvalue, *shmem);
if (retval && dev && !numcards)
BUGMSG2(D_NORMAL, "S5: No ARCnet cards found.\n");
return retval;
}
