b884c872fa
Make all Orinoco PCI drivers (orinoco_pci, orinoco_plx, orinoco_tmd and orinoco_nortel) as similar as possible. Use the best implementation of error handling, the best error messages, the best comments. Put common code to orinoco_pci.h. For now, it's suspend and resume functions and function for registering the network device. Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
126 lines
2.9 KiB
C
126 lines
2.9 KiB
C
/* orinoco_pci.h
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*
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* Common code for all Orinoco drivers for PCI devices, including
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* both native PCI and PCMCIA-to-PCI bridges.
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*
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* Copyright (C) 2005, Pavel Roskin.
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* See orinoco.c for license.
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*/
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#ifndef _ORINOCO_PCI_H
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#define _ORINOCO_PCI_H
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#include <linux/netdevice.h>
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/* Driver specific data */
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struct orinoco_pci_card {
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void __iomem *bridge_io;
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void __iomem *attr_io;
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};
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/* Set base address or memory range of the network device based on
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* the PCI device it's using. Specify BAR of the "main" resource.
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* To be used after request_irq(). */
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static inline void orinoco_pci_setup_netdev(struct net_device *dev,
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struct pci_dev *pdev, int bar)
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{
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char *range_type;
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unsigned long start = pci_resource_start(pdev, bar);
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unsigned long len = pci_resource_len(pdev, bar);
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unsigned long flags = pci_resource_flags(pdev, bar);
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unsigned long end = start + len - 1;
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dev->irq = pdev->irq;
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if (flags & IORESOURCE_IO) {
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dev->base_addr = start;
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range_type = "ports";
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} else {
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dev->mem_start = start;
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dev->mem_end = end;
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range_type = "memory";
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}
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printk(KERN_DEBUG PFX "%s: irq %d, %s 0x%lx-0x%lx\n",
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pci_name(pdev), pdev->irq, range_type, start, end);
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}
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static int orinoco_pci_suspend(struct pci_dev *pdev, pm_message_t state)
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{
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struct net_device *dev = pci_get_drvdata(pdev);
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struct orinoco_private *priv = netdev_priv(dev);
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unsigned long flags;
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int err;
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err = orinoco_lock(priv, &flags);
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if (err) {
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printk(KERN_ERR "%s: cannot lock hardware for suspend\n",
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dev->name);
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return err;
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}
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err = __orinoco_down(dev);
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if (err)
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printk(KERN_WARNING "%s: error %d bringing interface down "
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"for suspend\n", dev->name, err);
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netif_device_detach(dev);
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priv->hw_unavailable++;
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orinoco_unlock(priv, &flags);
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free_irq(pdev->irq, dev);
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pci_save_state(pdev);
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pci_disable_device(pdev);
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pci_set_power_state(pdev, PCI_D3hot);
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return 0;
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}
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static int orinoco_pci_resume(struct pci_dev *pdev)
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{
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struct net_device *dev = pci_get_drvdata(pdev);
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struct orinoco_private *priv = netdev_priv(dev);
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unsigned long flags;
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int err;
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pci_set_power_state(pdev, 0);
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pci_enable_device(pdev);
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pci_restore_state(pdev);
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err = request_irq(pdev->irq, orinoco_interrupt, SA_SHIRQ,
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dev->name, dev);
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if (err) {
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printk(KERN_ERR "%s: cannot re-allocate IRQ on resume\n",
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dev->name);
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pci_disable_device(pdev);
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return -EBUSY;
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}
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err = orinoco_reinit_firmware(dev);
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if (err) {
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printk(KERN_ERR "%s: error %d re-initializing firmware "
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"on resume\n", dev->name, err);
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return err;
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}
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spin_lock_irqsave(&priv->lock, flags);
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netif_device_attach(dev);
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priv->hw_unavailable--;
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if (priv->open && (! priv->hw_unavailable)) {
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err = __orinoco_up(dev);
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if (err)
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printk(KERN_ERR "%s: Error %d restarting card on resume\n",
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dev->name, err);
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}
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spin_unlock_irqrestore(&priv->lock, flags);
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return 0;
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}
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#endif /* _ORINOCO_PCI_H */
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