forked from Minki/linux
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
|
|
*
|
|
* 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 */
|