433 lines
9.3 KiB
C
433 lines
9.3 KiB
C
/*
|
||
* 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:
|
||
*/
|