static int __exit ag71xx_remove(struct platform_device *pdev)
{
struct net_device *dev = platform_get_drvdata(pdev);
if (dev) {
struct ag71xx *ag = netdev_priv(dev);
ag71xx_phy_disconnect(ag);
unregister_netdev(dev);
free_irq(dev->irq, dev);
iounmap(ag->mii_ctrl);
iounmap(ag->mac_base2);
iounmap(ag->mac_base);
kfree(dev);
platform_set_drvdata(pdev, NULL);
}
return 0;
}
static int __init ag71xx_probe(struct platform_device *pdev)
{
struct net_device *dev;
struct resource *res;
struct ag71xx *ag;
struct ag71xx_platform_data *pdata;
int err;
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "no platform data specified\n");
err = -ENXIO;
goto err_out;
}
if (pdata->mii_bus_dev == NULL) {
dev_err(&pdev->dev, "no MII bus device specified\n");
err = -EINVAL;
goto err_out;
}
dev = alloc_etherdev(sizeof(*ag));
if (!dev) {
dev_err(&pdev->dev, "alloc_etherdev failed\n");
err = -ENOMEM;
goto err_out;
}
SET_NETDEV_DEV(dev, &pdev->dev);
ag = netdev_priv(dev);
ag->pdev = pdev;
ag->dev = dev;
ag->msg_enable = netif_msg_init(ag71xx_msg_level,
AG71XX_DEFAULT_MSG_ENABLE);
spin_lock_init(&ag->lock);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base");
if (!res) {
dev_err(&pdev->dev, "no mac_base resource found\n");
err = -ENXIO;
goto err_out;
}
ag->mac_base = ioremap_nocache(res->start, res->end - res->start + 1);
if (!ag->mac_base) {
dev_err(&pdev->dev, "unable to ioremap mac_base\n");
err = -ENOMEM;
goto err_free_dev;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mii_ctrl");
if (!res) {
dev_err(&pdev->dev, "no mii_ctrl resource found\n");
err = -ENXIO;
goto err_unmap_base;
}
ag->mii_ctrl = ioremap_nocache(res->start, res->end - res->start + 1);
if (!ag->mii_ctrl) {
dev_err(&pdev->dev, "unable to ioremap mii_ctrl\n");
err = -ENOMEM;
goto err_unmap_base;
}
dev->irq = platform_get_irq(pdev, 0);
err = request_irq(dev->irq, ag71xx_interrupt,
IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
dev->name, dev);
if (err) {
dev_err(&pdev->dev, "unable to request IRQ %d\n", dev->irq);
goto err_unmap_mii_ctrl;
}
dev->base_addr = (unsigned long)ag->mac_base;
dev->netdev_ops = &ag71xx_netdev_ops;
dev->ethtool_ops = &ag71xx_ethtool_ops;
INIT_WORK(&ag->restart_work, ag71xx_restart_work_func);
init_timer(&ag->oom_timer);
ag->oom_timer.data = (unsigned long) dev;
ag->oom_timer.function = ag71xx_oom_timer_handler;
memcpy(dev->dev_addr, pdata->mac_addr, ETH_ALEN);
netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
err = register_netdev(dev);
if (err) {
dev_err(&pdev->dev, "unable to register net device\n");
goto err_free_irq;
}
printk(KERN_INFO "%s: Atheros AG71xx at 0x%08lx, irq %d\n",
dev->name, dev->base_addr, dev->irq);
ag71xx_dump_regs(ag);
ag71xx_hw_init(ag);
ag71xx_dump_regs(ag);
err = ag71xx_phy_connect(ag);
if (err)
goto err_unregister_netdev;
err = ag71xx_debugfs_init(ag);
if (err)
goto err_phy_disconnect;
platform_set_drvdata(pdev, dev);
return 0;
err_phy_disconnect:
ag71xx_phy_disconnect(ag);
err_unregister_netdev:
unregister_netdev(dev);
err_free_irq:
free_irq(dev->irq, dev);
err_unmap_mii_ctrl:
iounmap(ag->mii_ctrl);
err_unmap_base:
iounmap(ag->mac_base);
err_free_dev:
kfree(dev);
err_out:
platform_set_drvdata(pdev, NULL);
return err;
}