419 lines
9.1 KiB
C
419 lines
9.1 KiB
C
/*
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* proteon.c: A network driver for Proteon ISA token ring cards.
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*
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* Based on tmspci written 1999 by Adam Fritzler
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*
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* Written 2003 by Jochen Friedrich
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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* This driver module supports the following cards:
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* - Proteon 1392, 1392+
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*
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* Maintainer(s):
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* AF Adam Fritzler
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* JF Jochen Friedrich jochen@scram.de
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*
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* Modification History:
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* 02-Jan-03 JF Created
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*
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*/
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static const char version[] = "proteon.c: v1.00 02/01/2003 by Jochen Friedrich\n";
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/delay.h>
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#include <linux/errno.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/netdevice.h>
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#include <linux/trdevice.h>
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#include <linux/platform_device.h>
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#include <asm/system.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/pci.h>
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#include <asm/dma.h>
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#include "tms380tr.h"
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#define PROTEON_IO_EXTENT 32
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/* A zero-terminated list of I/O addresses to be probed. */
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static unsigned int portlist[] __initdata = {
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0x0A20, 0x0E20, 0x1A20, 0x1E20, 0x2A20, 0x2E20, 0x3A20, 0x3E20,// Prot.
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0x4A20, 0x4E20, 0x5A20, 0x5E20, 0x6A20, 0x6E20, 0x7A20, 0x7E20,// Prot.
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0x8A20, 0x8E20, 0x9A20, 0x9E20, 0xAA20, 0xAE20, 0xBA20, 0xBE20,// Prot.
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0xCA20, 0xCE20, 0xDA20, 0xDE20, 0xEA20, 0xEE20, 0xFA20, 0xFE20,// Prot.
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0
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};
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/* A zero-terminated list of IRQs to be probed. */
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static unsigned short irqlist[] = {
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7, 6, 5, 4, 3, 12, 11, 10, 9,
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0
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};
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/* A zero-terminated list of DMAs to be probed. */
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static int dmalist[] __initdata = {
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5, 6, 7,
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0
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};
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static char cardname[] = "Proteon 1392\0";
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static u64 dma_mask = ISA_MAX_ADDRESS;
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static int proteon_open(struct net_device *dev);
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static void proteon_read_eeprom(struct net_device *dev);
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static unsigned short proteon_setnselout_pins(struct net_device *dev);
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static unsigned short proteon_sifreadb(struct net_device *dev, unsigned short reg)
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{
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return inb(dev->base_addr + reg);
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}
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static unsigned short proteon_sifreadw(struct net_device *dev, unsigned short reg)
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{
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return inw(dev->base_addr + reg);
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}
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static void proteon_sifwriteb(struct net_device *dev, unsigned short val, unsigned short reg)
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{
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outb(val, dev->base_addr + reg);
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}
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static void proteon_sifwritew(struct net_device *dev, unsigned short val, unsigned short reg)
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{
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outw(val, dev->base_addr + reg);
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}
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static int __init proteon_probe1(struct net_device *dev, int ioaddr)
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{
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unsigned char chk1, chk2;
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int i;
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if (!request_region(ioaddr, PROTEON_IO_EXTENT, cardname))
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return -ENODEV;
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chk1 = inb(ioaddr + 0x1f); /* Get Proteon ID reg 1 */
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if (chk1 != 0x1f)
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goto nodev;
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chk1 = inb(ioaddr + 0x1e) & 0x07; /* Get Proteon ID reg 0 */
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for (i=0; i<16; i++) {
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chk2 = inb(ioaddr + 0x1e) & 0x07;
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if (((chk1 + 1) & 0x07) != chk2)
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goto nodev;
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chk1 = chk2;
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}
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dev->base_addr = ioaddr;
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return (0);
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nodev:
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release_region(ioaddr, PROTEON_IO_EXTENT);
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return -ENODEV;
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}
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static int __init setup_card(struct net_device *dev, struct device *pdev)
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{
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struct net_local *tp;
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static int versionprinted;
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const unsigned *port;
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int j,err = 0;
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if (!dev)
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return -ENOMEM;
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if (dev->base_addr) /* probe specific location */
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err = proteon_probe1(dev, dev->base_addr);
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else {
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for (port = portlist; *port; port++) {
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err = proteon_probe1(dev, *port);
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if (!err)
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break;
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}
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}
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if (err)
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goto out5;
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/* At this point we have found a valid card. */
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if (versionprinted++ == 0)
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printk(KERN_DEBUG "%s", version);
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err = -EIO;
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pdev->dma_mask = &dma_mask;
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if (tmsdev_init(dev, pdev))
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goto out4;
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dev->base_addr &= ~3;
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proteon_read_eeprom(dev);
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printk(KERN_DEBUG "proteon.c: Ring Station Address: %pM\n",
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dev->dev_addr);
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tp = netdev_priv(dev);
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tp->setnselout = proteon_setnselout_pins;
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tp->sifreadb = proteon_sifreadb;
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tp->sifreadw = proteon_sifreadw;
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tp->sifwriteb = proteon_sifwriteb;
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tp->sifwritew = proteon_sifwritew;
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memcpy(tp->ProductID, cardname, PROD_ID_SIZE + 1);
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tp->tmspriv = NULL;
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dev->open = proteon_open;
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dev->stop = tms380tr_close;
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if (dev->irq == 0)
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{
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for(j = 0; irqlist[j] != 0; j++)
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{
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dev->irq = irqlist[j];
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if (!request_irq(dev->irq, tms380tr_interrupt, 0,
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cardname, dev))
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break;
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}
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if(irqlist[j] == 0)
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{
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printk(KERN_INFO "proteon.c: AutoSelect no IRQ available\n");
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goto out3;
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}
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}
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else
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{
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for(j = 0; irqlist[j] != 0; j++)
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if (irqlist[j] == dev->irq)
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break;
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if (irqlist[j] == 0)
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{
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printk(KERN_INFO "proteon.c: Illegal IRQ %d specified\n",
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dev->irq);
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goto out3;
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}
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if (request_irq(dev->irq, tms380tr_interrupt, 0,
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cardname, dev))
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{
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printk(KERN_INFO "proteon.c: Selected IRQ %d not available\n",
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dev->irq);
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goto out3;
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}
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}
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if (dev->dma == 0)
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{
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for(j = 0; dmalist[j] != 0; j++)
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{
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dev->dma = dmalist[j];
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if (!request_dma(dev->dma, cardname))
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break;
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}
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if(dmalist[j] == 0)
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{
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printk(KERN_INFO "proteon.c: AutoSelect no DMA available\n");
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goto out2;
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}
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}
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else
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{
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for(j = 0; dmalist[j] != 0; j++)
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if (dmalist[j] == dev->dma)
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break;
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if (dmalist[j] == 0)
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{
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printk(KERN_INFO "proteon.c: Illegal DMA %d specified\n",
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dev->dma);
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goto out2;
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}
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if (request_dma(dev->dma, cardname))
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{
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printk(KERN_INFO "proteon.c: Selected DMA %d not available\n",
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dev->dma);
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goto out2;
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}
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}
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err = register_netdev(dev);
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if (err)
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goto out;
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printk(KERN_DEBUG "%s: IO: %#4lx IRQ: %d DMA: %d\n",
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dev->name, dev->base_addr, dev->irq, dev->dma);
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return 0;
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out:
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free_dma(dev->dma);
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out2:
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free_irq(dev->irq, dev);
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out3:
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tmsdev_term(dev);
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out4:
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release_region(dev->base_addr, PROTEON_IO_EXTENT);
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out5:
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return err;
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}
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/*
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* Reads MAC address from adapter RAM, which should've read it from
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* the onboard ROM.
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*
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* Calling this on a board that does not support it can be a very
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* dangerous thing. The Madge board, for instance, will lock your
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* machine hard when this is called. Luckily, its supported in a
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* separate driver. --ASF
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*/
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static void proteon_read_eeprom(struct net_device *dev)
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{
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int i;
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/* Address: 0000:0000 */
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proteon_sifwritew(dev, 0, SIFADX);
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proteon_sifwritew(dev, 0, SIFADR);
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/* Read six byte MAC address data */
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dev->addr_len = 6;
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for(i = 0; i < 6; i++)
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dev->dev_addr[i] = proteon_sifreadw(dev, SIFINC) >> 8;
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}
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static unsigned short proteon_setnselout_pins(struct net_device *dev)
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{
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return 0;
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}
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static int proteon_open(struct net_device *dev)
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{
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struct net_local *tp = netdev_priv(dev);
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unsigned short val = 0;
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int i;
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/* Proteon reset sequence */
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outb(0, dev->base_addr + 0x11);
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mdelay(20);
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outb(0x04, dev->base_addr + 0x11);
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mdelay(20);
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outb(0, dev->base_addr + 0x11);
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mdelay(100);
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/* set control/status reg */
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val = inb(dev->base_addr + 0x11);
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val |= 0x78;
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val &= 0xf9;
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if(tp->DataRate == SPEED_4)
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val |= 0x20;
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else
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val &= ~0x20;
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outb(val, dev->base_addr + 0x11);
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outb(0xff, dev->base_addr + 0x12);
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for(i = 0; irqlist[i] != 0; i++)
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{
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if(irqlist[i] == dev->irq)
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break;
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}
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val = i;
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i = (7 - dev->dma) << 4;
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val |= i;
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outb(val, dev->base_addr + 0x13);
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return tms380tr_open(dev);
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}
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#define ISATR_MAX_ADAPTERS 3
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static int io[ISATR_MAX_ADAPTERS];
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static int irq[ISATR_MAX_ADAPTERS];
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static int dma[ISATR_MAX_ADAPTERS];
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MODULE_LICENSE("GPL");
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module_param_array(io, int, NULL, 0);
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module_param_array(irq, int, NULL, 0);
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module_param_array(dma, int, NULL, 0);
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static struct platform_device *proteon_dev[ISATR_MAX_ADAPTERS];
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static struct platform_driver proteon_driver = {
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.driver = {
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.name = "proteon",
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},
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};
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static int __init proteon_init(void)
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{
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struct net_device *dev;
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struct platform_device *pdev;
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int i, num = 0, err = 0;
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err = platform_driver_register(&proteon_driver);
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if (err)
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return err;
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for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) {
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dev = alloc_trdev(sizeof(struct net_local));
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if (!dev)
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continue;
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dev->base_addr = io[i];
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dev->irq = irq[i];
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dev->dma = dma[i];
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pdev = platform_device_register_simple("proteon",
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i, NULL, 0);
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if (IS_ERR(pdev)) {
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free_netdev(dev);
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continue;
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}
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err = setup_card(dev, &pdev->dev);
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if (!err) {
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proteon_dev[i] = pdev;
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platform_set_drvdata(pdev, dev);
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++num;
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} else {
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platform_device_unregister(pdev);
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free_netdev(dev);
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}
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}
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printk(KERN_NOTICE "proteon.c: %d cards found.\n", num);
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/* Probe for cards. */
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if (num == 0) {
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printk(KERN_NOTICE "proteon.c: No cards found.\n");
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platform_driver_unregister(&proteon_driver);
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return -ENODEV;
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}
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return 0;
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}
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static void __exit proteon_cleanup(void)
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{
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struct net_device *dev;
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int i;
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for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) {
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struct platform_device *pdev = proteon_dev[i];
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if (!pdev)
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continue;
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dev = platform_get_drvdata(pdev);
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unregister_netdev(dev);
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release_region(dev->base_addr, PROTEON_IO_EXTENT);
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free_irq(dev->irq, dev);
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free_dma(dev->dma);
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tmsdev_term(dev);
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free_netdev(dev);
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platform_set_drvdata(pdev, NULL);
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platform_device_unregister(pdev);
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}
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platform_driver_unregister(&proteon_driver);
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}
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module_init(proteon_init);
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module_exit(proteon_cleanup);
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