| /* |
| * 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 |
| * 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 <linux/platform_device.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"; |
| static u64 dma_mask = ISA_MAX_ADDRESS; |
| 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 struct net_device_ops proteon_netdev_ops __read_mostly; |
| |
| static int __init setup_card(struct net_device *dev, struct device *pdev) |
| { |
| struct net_local *tp; |
| static int versionprinted; |
| const unsigned *port; |
| int j,err = 0; |
| |
| if (!dev) |
| return -ENOMEM; |
| |
| 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 out5; |
| |
| /* At this point we have found a valid card. */ |
| |
| if (versionprinted++ == 0) |
| printk(KERN_DEBUG "%s", version); |
| |
| err = -EIO; |
| pdev->dma_mask = &dma_mask; |
| if (tmsdev_init(dev, pdev)) |
| goto out4; |
| |
| dev->base_addr &= ~3; |
| |
| proteon_read_eeprom(dev); |
| |
| printk(KERN_DEBUG "proteon.c: Ring Station Address: %pM\n", |
| dev->dev_addr); |
| |
| 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->netdev_ops = &proteon_netdev_ops; |
| |
| 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 "proteon.c: AutoSelect no IRQ available\n"); |
| goto out3; |
| } |
| } |
| else |
| { |
| for(j = 0; irqlist[j] != 0; j++) |
| if (irqlist[j] == dev->irq) |
| break; |
| if (irqlist[j] == 0) |
| { |
| printk(KERN_INFO "proteon.c: Illegal IRQ %d specified\n", |
| dev->irq); |
| goto out3; |
| } |
| if (request_irq(dev->irq, tms380tr_interrupt, 0, |
| cardname, dev)) |
| { |
| printk(KERN_INFO "proteon.c: Selected IRQ %d not available\n", |
| 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 "proteon.c: AutoSelect no DMA available\n"); |
| goto out2; |
| } |
| } |
| else |
| { |
| for(j = 0; dmalist[j] != 0; j++) |
| if (dmalist[j] == dev->dma) |
| break; |
| if (dmalist[j] == 0) |
| { |
| printk(KERN_INFO "proteon.c: Illegal DMA %d specified\n", |
| dev->dma); |
| goto out2; |
| } |
| if (request_dma(dev->dma, cardname)) |
| { |
| printk(KERN_INFO "proteon.c: Selected DMA %d not available\n", |
| dev->dma); |
| goto out2; |
| } |
| } |
| |
| err = register_netdev(dev); |
| if (err) |
| goto out; |
| |
| printk(KERN_DEBUG "%s: IO: %#4lx IRQ: %d DMA: %d\n", |
| dev->name, dev->base_addr, dev->irq, dev->dma); |
| |
| 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); |
| out5: |
| return 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; |
| } |
| |
| static 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); |
| } |
| |
| #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 platform_device *proteon_dev[ISATR_MAX_ADAPTERS]; |
| |
| static struct platform_driver proteon_driver = { |
| .driver = { |
| .name = "proteon", |
| }, |
| }; |
| |
| static int __init proteon_init(void) |
| { |
| struct net_device *dev; |
| struct platform_device *pdev; |
| int i, num = 0, err = 0; |
| |
| proteon_netdev_ops = tms380tr_netdev_ops; |
| proteon_netdev_ops.ndo_open = proteon_open; |
| proteon_netdev_ops.ndo_stop = tms380tr_close; |
| |
| err = platform_driver_register(&proteon_driver); |
| if (err) |
| return err; |
| |
| 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]; |
| pdev = platform_device_register_simple("proteon", |
| i, NULL, 0); |
| if (IS_ERR(pdev)) { |
| free_netdev(dev); |
| continue; |
| } |
| err = setup_card(dev, &pdev->dev); |
| if (!err) { |
| proteon_dev[i] = pdev; |
| platform_set_drvdata(pdev, dev); |
| ++num; |
| } else { |
| platform_device_unregister(pdev); |
| 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"); |
| platform_driver_unregister(&proteon_driver); |
| return -ENODEV; |
| } |
| return 0; |
| } |
| |
| static void __exit proteon_cleanup(void) |
| { |
| struct net_device *dev; |
| int i; |
| |
| for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) { |
| struct platform_device *pdev = proteon_dev[i]; |
| |
| if (!pdev) |
| continue; |
| dev = platform_get_drvdata(pdev); |
| 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); |
| platform_set_drvdata(pdev, NULL); |
| platform_device_unregister(pdev); |
| } |
| platform_driver_unregister(&proteon_driver); |
| } |
| |
| module_init(proteon_init); |
| module_exit(proteon_cleanup); |