diff options
Diffstat (limited to 'drivers/net/wireless/orinoco_pci.h')
-rw-r--r-- | drivers/net/wireless/orinoco_pci.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/drivers/net/wireless/orinoco_pci.h b/drivers/net/wireless/orinoco_pci.h new file mode 100644 index 0000000..b05a9a5 --- /dev/null +++ b/drivers/net/wireless/orinoco_pci.h @@ -0,0 +1,125 @@ +/* orinoco_pci.h + * + * Common code for all Orinoco drivers for PCI devices, including + * both native PCI and PCMCIA-to-PCI bridges. + * + * Copyright (C) 2005, Pavel Roskin. + * See orinoco.c for license. + */ + +#ifndef _ORINOCO_PCI_H +#define _ORINOCO_PCI_H + +#include <linux/netdevice.h> + +/* Driver specific data */ +struct orinoco_pci_card { + void __iomem *bridge_io; + void __iomem *attr_io; +}; + +/* Set base address or memory range of the network device based on + * the PCI device it's using. Specify BAR of the "main" resource. + * To be used after request_irq(). */ +static inline void orinoco_pci_setup_netdev(struct net_device *dev, + struct pci_dev *pdev, int bar) +{ + char *range_type; + unsigned long start = pci_resource_start(pdev, bar); + unsigned long len = pci_resource_len(pdev, bar); + unsigned long flags = pci_resource_flags(pdev, bar); + unsigned long end = start + len - 1; + + dev->irq = pdev->irq; + if (flags & IORESOURCE_IO) { + dev->base_addr = start; + range_type = "ports"; + } else { + dev->mem_start = start; + dev->mem_end = end; + range_type = "memory"; + } + + printk(KERN_DEBUG PFX "%s: irq %d, %s 0x%lx-0x%lx\n", + pci_name(pdev), pdev->irq, range_type, start, end); +} + +static int orinoco_pci_suspend(struct pci_dev *pdev, pm_message_t state) +{ + struct net_device *dev = pci_get_drvdata(pdev); + struct orinoco_private *priv = netdev_priv(dev); + unsigned long flags; + int err; + + err = orinoco_lock(priv, &flags); + if (err) { + printk(KERN_ERR "%s: cannot lock hardware for suspend\n", + dev->name); + return err; + } + + err = __orinoco_down(dev); + if (err) + printk(KERN_WARNING "%s: error %d bringing interface down " + "for suspend\n", dev->name, err); + + netif_device_detach(dev); + + priv->hw_unavailable++; + + orinoco_unlock(priv, &flags); + + free_irq(pdev->irq, dev); + pci_save_state(pdev); + pci_disable_device(pdev); + pci_set_power_state(pdev, PCI_D3hot); + + return 0; +} + +static int orinoco_pci_resume(struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata(pdev); + struct orinoco_private *priv = netdev_priv(dev); + unsigned long flags; + int err; + + pci_set_power_state(pdev, 0); + pci_enable_device(pdev); + pci_restore_state(pdev); + + err = request_irq(pdev->irq, orinoco_interrupt, SA_SHIRQ, + dev->name, dev); + if (err) { + printk(KERN_ERR "%s: cannot re-allocate IRQ on resume\n", + dev->name); + pci_disable_device(pdev); + return -EBUSY; + } + + err = orinoco_reinit_firmware(dev); + if (err) { + printk(KERN_ERR "%s: error %d re-initializing firmware " + "on resume\n", dev->name, err); + return err; + } + + spin_lock_irqsave(&priv->lock, flags); + + netif_device_attach(dev); + + priv->hw_unavailable--; + + if (priv->open && (! priv->hw_unavailable)) { + err = __orinoco_up(dev); + if (err) + printk(KERN_ERR "%s: Error %d restarting card on resume\n", + dev->name, err); + } + + spin_unlock_irqrestore(&priv->lock, flags); + + return 0; +} + +#endif /* _ORINOCO_PCI_H */ |