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linux/drivers/net/tokenring/proteon.c
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2 
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

433 lines
9.3 KiB
C
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/*
* proteon.c: A network driver for Proteon ISA token ring cards.
*
* Based on tmspci written 1999 by Adam Fritzler
*
* Written 2003 by Jochen Friedrich
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
* This driver module supports the following cards:
* - Proteon 1392, 1392+
*
* Maintainer(s):
* AF Adam Fritzler mid@auk.cx
* JF Jochen Friedrich jochen@scram.de
*
* Modification History:
* 02-Jan-03 JF Created
*
*/
static const char version[] = "proteon.c: v1.00 02/01/2003 by Jochen Friedrich\n";
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/trdevice.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/pci.h>
#include <asm/dma.h>
#include "tms380tr.h"
#define PROTEON_IO_EXTENT 32
/* A zero-terminated list of I/O addresses to be probed. */
static unsigned int portlist[] __initdata = {
0x0A20, 0x0E20, 0x1A20, 0x1E20, 0x2A20, 0x2E20, 0x3A20, 0x3E20,// Prot.
0x4A20, 0x4E20, 0x5A20, 0x5E20, 0x6A20, 0x6E20, 0x7A20, 0x7E20,// Prot.
0x8A20, 0x8E20, 0x9A20, 0x9E20, 0xAA20, 0xAE20, 0xBA20, 0xBE20,// Prot.
0xCA20, 0xCE20, 0xDA20, 0xDE20, 0xEA20, 0xEE20, 0xFA20, 0xFE20,// Prot.
0
};
/* A zero-terminated list of IRQs to be probed. */
static unsigned short irqlist[] = {
7, 6, 5, 4, 3, 12, 11, 10, 9,
0
};
/* A zero-terminated list of DMAs to be probed. */
static int dmalist[] __initdata = {
5, 6, 7,
0
};
static char cardname[] = "Proteon 1392\0";
struct net_device *proteon_probe(int unit);
static int proteon_open(struct net_device *dev);
static void proteon_read_eeprom(struct net_device *dev);
static unsigned short proteon_setnselout_pins(struct net_device *dev);
static unsigned short proteon_sifreadb(struct net_device *dev, unsigned short reg)
{
return inb(dev->base_addr + reg);
}
static unsigned short proteon_sifreadw(struct net_device *dev, unsigned short reg)
{
return inw(dev->base_addr + reg);
}
static void proteon_sifwriteb(struct net_device *dev, unsigned short val, unsigned short reg)
{
outb(val, dev->base_addr + reg);
}
static void proteon_sifwritew(struct net_device *dev, unsigned short val, unsigned short reg)
{
outw(val, dev->base_addr + reg);
}
static int __init proteon_probe1(struct net_device *dev, int ioaddr)
{
unsigned char chk1, chk2;
int i;
if (!request_region(ioaddr, PROTEON_IO_EXTENT, cardname))
return -ENODEV;
chk1 = inb(ioaddr + 0x1f); /* Get Proteon ID reg 1 */
if (chk1 != 0x1f)
goto nodev;
chk1 = inb(ioaddr + 0x1e) & 0x07; /* Get Proteon ID reg 0 */
for (i=0; i<16; i++) {
chk2 = inb(ioaddr + 0x1e) & 0x07;
if (((chk1 + 1) & 0x07) != chk2)
goto nodev;
chk1 = chk2;
}
dev->base_addr = ioaddr;
return (0);
nodev:
release_region(ioaddr, PROTEON_IO_EXTENT);
return -ENODEV;
}
static int __init setup_card(struct net_device *dev)
{
struct net_local *tp;
static int versionprinted;
const unsigned *port;
int j,err = 0;
if (!dev)
return -ENOMEM;
SET_MODULE_OWNER(dev);
if (dev->base_addr) /* probe specific location */
err = proteon_probe1(dev, dev->base_addr);
else {
for (port = portlist; *port; port++) {
err = proteon_probe1(dev, *port);
if (!err)
break;
}
}
if (err)
goto out4;
/* At this point we have found a valid card. */
if (versionprinted++ == 0)
printk(KERN_DEBUG "%s", version);
err = -EIO;
if (tmsdev_init(dev, ISA_MAX_ADDRESS, NULL))
goto out4;
dev->base_addr &= ~3;
proteon_read_eeprom(dev);
printk(KERN_DEBUG "%s: Ring Station Address: ", dev->name);
printk("%2.2x", dev->dev_addr[0]);
for (j = 1; j < 6; j++)
printk(":%2.2x", dev->dev_addr[j]);
printk("\n");
tp = netdev_priv(dev);
tp->setnselout = proteon_setnselout_pins;
tp->sifreadb = proteon_sifreadb;
tp->sifreadw = proteon_sifreadw;
tp->sifwriteb = proteon_sifwriteb;
tp->sifwritew = proteon_sifwritew;
memcpy(tp->ProductID, cardname, PROD_ID_SIZE + 1);
tp->tmspriv = NULL;
dev->open = proteon_open;
dev->stop = tms380tr_close;
if (dev->irq == 0)
{
for(j = 0; irqlist[j] != 0; j++)
{
dev->irq = irqlist[j];
if (!request_irq(dev->irq, tms380tr_interrupt, 0,
cardname, dev))
break;
}
if(irqlist[j] == 0)
{
printk(KERN_INFO "%s: AutoSelect no IRQ available\n", dev->name);
goto out3;
}
}
else
{
for(j = 0; irqlist[j] != 0; j++)
if (irqlist[j] == dev->irq)
break;
if (irqlist[j] == 0)
{
printk(KERN_INFO "%s: Illegal IRQ %d specified\n",
dev->name, dev->irq);
goto out3;
}
if (request_irq(dev->irq, tms380tr_interrupt, 0,
cardname, dev))
{
printk(KERN_INFO "%s: Selected IRQ %d not available\n",
dev->name, dev->irq);
goto out3;
}
}
if (dev->dma == 0)
{
for(j = 0; dmalist[j] != 0; j++)
{
dev->dma = dmalist[j];
if (!request_dma(dev->dma, cardname))
break;
}
if(dmalist[j] == 0)
{
printk(KERN_INFO "%s: AutoSelect no DMA available\n", dev->name);
goto out2;
}
}
else
{
for(j = 0; dmalist[j] != 0; j++)
if (dmalist[j] == dev->dma)
break;
if (dmalist[j] == 0)
{
printk(KERN_INFO "%s: Illegal DMA %d specified\n",
dev->name, dev->dma);
goto out2;
}
if (request_dma(dev->dma, cardname))
{
printk(KERN_INFO "%s: Selected DMA %d not available\n",
dev->name, dev->dma);
goto out2;
}
}
printk(KERN_DEBUG "%s: IO: %#4lx IRQ: %d DMA: %d\n",
dev->name, dev->base_addr, dev->irq, dev->dma);
err = register_netdev(dev);
if (err)
goto out;
return 0;
out:
free_dma(dev->dma);
out2:
free_irq(dev->irq, dev);
out3:
tmsdev_term(dev);
out4:
release_region(dev->base_addr, PROTEON_IO_EXTENT);
return err;
}
struct net_device * __init proteon_probe(int unit)
{
struct net_device *dev = alloc_trdev(sizeof(struct net_local));
int err = 0;
if (!dev)
return ERR_PTR(-ENOMEM);
if (unit >= 0) {
sprintf(dev->name, "tr%d", unit);
netdev_boot_setup_check(dev);
}
err = setup_card(dev);
if (err)
goto out;
return dev;
out:
free_netdev(dev);
return ERR_PTR(err);
}
/*
* Reads MAC address from adapter RAM, which should've read it from
* the onboard ROM.
*
* Calling this on a board that does not support it can be a very
* dangerous thing. The Madge board, for instance, will lock your
* machine hard when this is called. Luckily, its supported in a
* separate driver. --ASF
*/
static void proteon_read_eeprom(struct net_device *dev)
{
int i;
/* Address: 0000:0000 */
proteon_sifwritew(dev, 0, SIFADX);
proteon_sifwritew(dev, 0, SIFADR);
/* Read six byte MAC address data */
dev->addr_len = 6;
for(i = 0; i < 6; i++)
dev->dev_addr[i] = proteon_sifreadw(dev, SIFINC) >> 8;
}
unsigned short proteon_setnselout_pins(struct net_device *dev)
{
return 0;
}
static int proteon_open(struct net_device *dev)
{
struct net_local *tp = netdev_priv(dev);
unsigned short val = 0;
int i;
/* Proteon reset sequence */
outb(0, dev->base_addr + 0x11);
mdelay(20);
outb(0x04, dev->base_addr + 0x11);
mdelay(20);
outb(0, dev->base_addr + 0x11);
mdelay(100);
/* set control/status reg */
val = inb(dev->base_addr + 0x11);
val |= 0x78;
val &= 0xf9;
if(tp->DataRate == SPEED_4)
val |= 0x20;
else
val &= ~0x20;
outb(val, dev->base_addr + 0x11);
outb(0xff, dev->base_addr + 0x12);
for(i = 0; irqlist[i] != 0; i++)
{
if(irqlist[i] == dev->irq)
break;
}
val = i;
i = (7 - dev->dma) << 4;
val |= i;
outb(val, dev->base_addr + 0x13);
return tms380tr_open(dev);
}
#ifdef MODULE
#define ISATR_MAX_ADAPTERS 3
static int io[ISATR_MAX_ADAPTERS];
static int irq[ISATR_MAX_ADAPTERS];
static int dma[ISATR_MAX_ADAPTERS];
MODULE_LICENSE("GPL");
module_param_array(io, int, NULL, 0);
module_param_array(irq, int, NULL, 0);
module_param_array(dma, int, NULL, 0);
static struct net_device *proteon_dev[ISATR_MAX_ADAPTERS];
int init_module(void)
{
struct net_device *dev;
int i, num = 0, err = 0;
for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) {
dev = alloc_trdev(sizeof(struct net_local));
if (!dev)
continue;
dev->base_addr = io[i];
dev->irq = irq[i];
dev->dma = dma[i];
err = setup_card(dev);
if (!err) {
proteon_dev[i] = dev;
++num;
} else {
free_netdev(dev);
}
}
printk(KERN_NOTICE "proteon.c: %d cards found.\n", num);
/* Probe for cards. */
if (num == 0) {
printk(KERN_NOTICE "proteon.c: No cards found.\n");
return (-ENODEV);
}
return (0);
}
void cleanup_module(void)
{
int i;
for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) {
struct net_device *dev = proteon_dev[i];
if (!dev)
continue;
unregister_netdev(dev);
release_region(dev->base_addr, PROTEON_IO_EXTENT);
free_irq(dev->irq, dev);
free_dma(dev->dma);
tmsdev_term(dev);
free_netdev(dev);
}
}
#endif /* MODULE */
/*
* Local variables:
* compile-command: "gcc -DMODVERSIONS -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer -I/usr/src/linux/drivers/net/tokenring/ -c proteon.c"
* alt-compile-command: "gcc -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer -I/usr/src/linux/drivers/net/tokenring/ -c proteon.c"
* c-set-style "K&R"
* c-indent-level: 8
* c-basic-offset: 8
* tab-width: 8
* End:
*/
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