| /* |
| * 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: |
| */ |