diff options
Diffstat (limited to 'drivers/net/tokenring/abyss.c')
| -rw-r--r-- | drivers/net/tokenring/abyss.c | 468 |
1 files changed, 0 insertions, 468 deletions
diff --git a/drivers/net/tokenring/abyss.c b/drivers/net/tokenring/abyss.c deleted file mode 100644 index b715e6b..0000000 --- a/drivers/net/tokenring/abyss.c +++ /dev/null @@ -1,468 +0,0 @@ -/* - * abyss.c: Network driver for the Madge Smart 16/4 PCI Mk2 token ring card. - * - * Written 1999-2000 by Adam Fritzler - * - * 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: - * - Madge Smart 16/4 PCI Mk2 - * - * Maintainer(s): - * AF Adam Fritzler - * - * Modification History: - * 30-Dec-99 AF Split off from the tms380tr driver. - * 22-Jan-00 AF Updated to use indirect read/writes - * 23-Nov-00 JG New PCI API, cleanups - * - * - * TODO: - * 1. See if we can use MMIO instead of inb/outb/inw/outw - * 2. Add support for Mk1 (has AT24 attached to the PCI - * config registers) - * - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/netdevice.h> -#include <linux/trdevice.h> - -#include <asm/io.h> -#include <asm/irq.h> - -#include "tms380tr.h" -#include "abyss.h" /* Madge-specific constants */ - -static char version[] __devinitdata = -"abyss.c: v1.02 23/11/2000 by Adam Fritzler\n"; - -#define ABYSS_IO_EXTENT 64 - -static DEFINE_PCI_DEVICE_TABLE(abyss_pci_tbl) = { - { PCI_VENDOR_ID_MADGE, PCI_DEVICE_ID_MADGE_MK2, - PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_NETWORK_TOKEN_RING << 8, 0x00ffffff, }, - { } /* Terminating entry */ -}; -MODULE_DEVICE_TABLE(pci, abyss_pci_tbl); - -MODULE_LICENSE("GPL"); - -static int abyss_open(struct net_device *dev); -static int abyss_close(struct net_device *dev); -static void abyss_enable(struct net_device *dev); -static int abyss_chipset_init(struct net_device *dev); -static void abyss_read_eeprom(struct net_device *dev); -static unsigned short abyss_setnselout_pins(struct net_device *dev); - -static void at24_writedatabyte(unsigned long regaddr, unsigned char byte); -static int at24_sendfullcmd(unsigned long regaddr, unsigned char cmd, unsigned char addr); -static int at24_sendcmd(unsigned long regaddr, unsigned char cmd); -static unsigned char at24_readdatabit(unsigned long regaddr); -static unsigned char at24_readdatabyte(unsigned long regaddr); -static int at24_waitforack(unsigned long regaddr); -static int at24_waitfornack(unsigned long regaddr); -static void at24_setlines(unsigned long regaddr, unsigned char clock, unsigned char data); -static void at24_start(unsigned long regaddr); -static unsigned char at24_readb(unsigned long regaddr, unsigned char addr); - -static unsigned short abyss_sifreadb(struct net_device *dev, unsigned short reg) -{ - return inb(dev->base_addr + reg); -} - -static unsigned short abyss_sifreadw(struct net_device *dev, unsigned short reg) -{ - return inw(dev->base_addr + reg); -} - -static void abyss_sifwriteb(struct net_device *dev, unsigned short val, unsigned short reg) -{ - outb(val, dev->base_addr + reg); -} - -static void abyss_sifwritew(struct net_device *dev, unsigned short val, unsigned short reg) -{ - outw(val, dev->base_addr + reg); -} - -static struct net_device_ops abyss_netdev_ops; - -static int __devinit abyss_attach(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - static int versionprinted; - struct net_device *dev; - struct net_local *tp; - int ret, pci_irq_line; - unsigned long pci_ioaddr; - - if (versionprinted++ == 0) - printk("%s", version); - - if (pci_enable_device(pdev)) - return -EIO; - - /* Remove I/O space marker in bit 0. */ - pci_irq_line = pdev->irq; - pci_ioaddr = pci_resource_start (pdev, 0); - - /* At this point we have found a valid card. */ - - dev = alloc_trdev(sizeof(struct net_local)); - if (!dev) - return -ENOMEM; - - if (!request_region(pci_ioaddr, ABYSS_IO_EXTENT, dev->name)) { - ret = -EBUSY; - goto err_out_trdev; - } - - ret = request_irq(pdev->irq, tms380tr_interrupt, IRQF_SHARED, - dev->name, dev); - if (ret) - goto err_out_region; - - dev->base_addr = pci_ioaddr; - dev->irq = pci_irq_line; - - printk("%s: Madge Smart 16/4 PCI Mk2 (Abyss)\n", dev->name); - printk("%s: IO: %#4lx IRQ: %d\n", - dev->name, pci_ioaddr, dev->irq); - /* - * The TMS SIF registers lay 0x10 above the card base address. - */ - dev->base_addr += 0x10; - - ret = tmsdev_init(dev, &pdev->dev); - if (ret) { - printk("%s: unable to get memory for dev->priv.\n", - dev->name); - goto err_out_irq; - } - - abyss_read_eeprom(dev); - - printk("%s: Ring Station Address: %pM\n", dev->name, dev->dev_addr); - - tp = netdev_priv(dev); - tp->setnselout = abyss_setnselout_pins; - tp->sifreadb = abyss_sifreadb; - tp->sifreadw = abyss_sifreadw; - tp->sifwriteb = abyss_sifwriteb; - tp->sifwritew = abyss_sifwritew; - - memcpy(tp->ProductID, "Madge PCI 16/4 Mk2", PROD_ID_SIZE + 1); - - dev->netdev_ops = &abyss_netdev_ops; - - pci_set_drvdata(pdev, dev); - SET_NETDEV_DEV(dev, &pdev->dev); - - ret = register_netdev(dev); - if (ret) - goto err_out_tmsdev; - return 0; - -err_out_tmsdev: - pci_set_drvdata(pdev, NULL); - tmsdev_term(dev); -err_out_irq: - free_irq(pdev->irq, dev); -err_out_region: - release_region(pci_ioaddr, ABYSS_IO_EXTENT); -err_out_trdev: - free_netdev(dev); - return ret; -} - -static unsigned short abyss_setnselout_pins(struct net_device *dev) -{ - unsigned short val = 0; - struct net_local *tp = netdev_priv(dev); - - if(tp->DataRate == SPEED_4) - val |= 0x01; /* Set 4Mbps */ - else - val |= 0x00; /* Set 16Mbps */ - - return val; -} - -/* - * The following Madge boards should use this code: - * - Smart 16/4 PCI Mk2 (Abyss) - * - Smart 16/4 PCI Mk1 (PCI T) - * - Smart 16/4 Client Plus PnP (Big Apple) - * - Smart 16/4 Cardbus Mk2 - * - * These access an Atmel AT24 SEEPROM using their glue chip registers. - * - */ -static void at24_writedatabyte(unsigned long regaddr, unsigned char byte) -{ - int i; - - for (i = 0; i < 8; i++) { - at24_setlines(regaddr, 0, (byte >> (7-i))&0x01); - at24_setlines(regaddr, 1, (byte >> (7-i))&0x01); - at24_setlines(regaddr, 0, (byte >> (7-i))&0x01); - } -} - -static int at24_sendfullcmd(unsigned long regaddr, unsigned char cmd, unsigned char addr) -{ - if (at24_sendcmd(regaddr, cmd)) { - at24_writedatabyte(regaddr, addr); - return at24_waitforack(regaddr); - } - return 0; -} - -static int at24_sendcmd(unsigned long regaddr, unsigned char cmd) -{ - int i; - - for (i = 0; i < 10; i++) { - at24_start(regaddr); - at24_writedatabyte(regaddr, cmd); - if (at24_waitforack(regaddr)) - return 1; - } - return 0; -} - -static unsigned char at24_readdatabit(unsigned long regaddr) -{ - unsigned char val; - - at24_setlines(regaddr, 0, 1); - at24_setlines(regaddr, 1, 1); - val = (inb(regaddr) & AT24_DATA)?1:0; - at24_setlines(regaddr, 1, 1); - at24_setlines(regaddr, 0, 1); - return val; -} - -static unsigned char at24_readdatabyte(unsigned long regaddr) -{ - unsigned char data = 0; - int i; - - for (i = 0; i < 8; i++) { - data <<= 1; - data |= at24_readdatabit(regaddr); - } - - return data; -} - -static int at24_waitforack(unsigned long regaddr) -{ - int i; - - for (i = 0; i < 10; i++) { - if ((at24_readdatabit(regaddr) & 0x01) == 0x00) - return 1; - } - return 0; -} - -static int at24_waitfornack(unsigned long regaddr) -{ - int i; - for (i = 0; i < 10; i++) { - if ((at24_readdatabit(regaddr) & 0x01) == 0x01) - return 1; - } - return 0; -} - -static void at24_setlines(unsigned long regaddr, unsigned char clock, unsigned char data) -{ - unsigned char val = AT24_ENABLE; - if (clock) - val |= AT24_CLOCK; - if (data) - val |= AT24_DATA; - - outb(val, regaddr); - tms380tr_wait(20); /* Very necessary. */ -} - -static void at24_start(unsigned long regaddr) -{ - at24_setlines(regaddr, 0, 1); - at24_setlines(regaddr, 1, 1); - at24_setlines(regaddr, 1, 0); - at24_setlines(regaddr, 0, 1); -} - -static unsigned char at24_readb(unsigned long regaddr, unsigned char addr) -{ - unsigned char data = 0xff; - - if (at24_sendfullcmd(regaddr, AT24_WRITE, addr)) { - if (at24_sendcmd(regaddr, AT24_READ)) { - data = at24_readdatabyte(regaddr); - if (!at24_waitfornack(regaddr)) - data = 0xff; - } - } - return data; -} - - -/* - * Enable basic functions of the Madge chipset needed - * for initialization. - */ -static void abyss_enable(struct net_device *dev) -{ - unsigned char reset_reg; - unsigned long ioaddr; - - ioaddr = dev->base_addr; - reset_reg = inb(ioaddr + PCIBM2_RESET_REG); - reset_reg |= PCIBM2_RESET_REG_CHIP_NRES; - outb(reset_reg, ioaddr + PCIBM2_RESET_REG); - tms380tr_wait(100); -} - -/* - * Enable the functions of the Madge chipset needed for - * full working order. - */ -static int abyss_chipset_init(struct net_device *dev) -{ - unsigned char reset_reg; - unsigned long ioaddr; - - ioaddr = dev->base_addr; - - reset_reg = inb(ioaddr + PCIBM2_RESET_REG); - - reset_reg |= PCIBM2_RESET_REG_CHIP_NRES; - outb(reset_reg, ioaddr + PCIBM2_RESET_REG); - - reset_reg &= ~(PCIBM2_RESET_REG_CHIP_NRES | - PCIBM2_RESET_REG_FIFO_NRES | - PCIBM2_RESET_REG_SIF_NRES); - outb(reset_reg, ioaddr + PCIBM2_RESET_REG); - - tms380tr_wait(100); - - reset_reg |= PCIBM2_RESET_REG_CHIP_NRES; - outb(reset_reg, ioaddr + PCIBM2_RESET_REG); - - reset_reg |= PCIBM2_RESET_REG_SIF_NRES; - outb(reset_reg, ioaddr + PCIBM2_RESET_REG); - - reset_reg |= PCIBM2_RESET_REG_FIFO_NRES; - outb(reset_reg, ioaddr + PCIBM2_RESET_REG); - - outb(PCIBM2_INT_CONTROL_REG_SINTEN | - PCIBM2_INT_CONTROL_REG_PCI_ERR_ENABLE, - ioaddr + PCIBM2_INT_CONTROL_REG); - - outb(30, ioaddr + PCIBM2_FIFO_THRESHOLD); - - return 0; -} - -static inline void abyss_chipset_close(struct net_device *dev) -{ - unsigned long ioaddr; - - ioaddr = dev->base_addr; - outb(0, ioaddr + PCIBM2_RESET_REG); -} - -/* - * Read configuration data from the AT24 SEEPROM on Madge cards. - * - */ -static void abyss_read_eeprom(struct net_device *dev) -{ - struct net_local *tp; - unsigned long ioaddr; - unsigned short val; - int i; - - tp = netdev_priv(dev); - ioaddr = dev->base_addr; - - /* Must enable glue chip first */ - abyss_enable(dev); - - val = at24_readb(ioaddr + PCIBM2_SEEPROM_REG, - PCIBM2_SEEPROM_RING_SPEED); - tp->DataRate = val?SPEED_4:SPEED_16; /* set open speed */ - printk("%s: SEEPROM: ring speed: %dMb/sec\n", dev->name, tp->DataRate); - - val = at24_readb(ioaddr + PCIBM2_SEEPROM_REG, - PCIBM2_SEEPROM_RAM_SIZE) * 128; - printk("%s: SEEPROM: adapter RAM: %dkb\n", dev->name, val); - - dev->addr_len = 6; - for (i = 0; i < 6; i++) - dev->dev_addr[i] = at24_readb(ioaddr + PCIBM2_SEEPROM_REG, - PCIBM2_SEEPROM_BIA+i); -} - -static int abyss_open(struct net_device *dev) -{ - abyss_chipset_init(dev); - tms380tr_open(dev); - return 0; -} - -static int abyss_close(struct net_device *dev) -{ - tms380tr_close(dev); - abyss_chipset_close(dev); - return 0; -} - -static void __devexit abyss_detach (struct pci_dev *pdev) -{ - struct net_device *dev = pci_get_drvdata(pdev); - - BUG_ON(!dev); - unregister_netdev(dev); - release_region(dev->base_addr-0x10, ABYSS_IO_EXTENT); - free_irq(dev->irq, dev); - tmsdev_term(dev); - free_netdev(dev); - pci_set_drvdata(pdev, NULL); -} - -static struct pci_driver abyss_driver = { - .name = "abyss", - .id_table = abyss_pci_tbl, - .probe = abyss_attach, - .remove = __devexit_p(abyss_detach), -}; - -static int __init abyss_init (void) -{ - abyss_netdev_ops = tms380tr_netdev_ops; - - abyss_netdev_ops.ndo_open = abyss_open; - abyss_netdev_ops.ndo_stop = abyss_close; - - return pci_register_driver(&abyss_driver); -} - -static void __exit abyss_rmmod (void) -{ - pci_unregister_driver (&abyss_driver); -} - -module_init(abyss_init); -module_exit(abyss_rmmod); - |