Merge branch 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block
[linux-2.6] / drivers / net / wireless / orinoco_pci.h
1 /* orinoco_pci.h
2  * 
3  * Common code for all Orinoco drivers for PCI devices, including
4  * both native PCI and PCMCIA-to-PCI bridges.
5  *
6  * Copyright (C) 2005, Pavel Roskin.
7  * See orinoco.c for license.
8  */
9
10 #ifndef _ORINOCO_PCI_H
11 #define _ORINOCO_PCI_H
12
13 #include <linux/netdevice.h>
14
15 /* Driver specific data */
16 struct orinoco_pci_card {
17         void __iomem *bridge_io;
18         void __iomem *attr_io;
19 };
20
21 #ifdef CONFIG_PM
22 static int orinoco_pci_suspend(struct pci_dev *pdev, pm_message_t state)
23 {
24         struct net_device *dev = pci_get_drvdata(pdev);
25         struct orinoco_private *priv = netdev_priv(dev);
26         unsigned long flags;
27         int err;
28
29         err = orinoco_lock(priv, &flags);
30         if (err) {
31                 printk(KERN_ERR "%s: cannot lock hardware for suspend\n",
32                        dev->name);
33                 return err;
34         }
35
36         err = __orinoco_down(dev);
37         if (err)
38                 printk(KERN_WARNING "%s: error %d bringing interface down "
39                        "for suspend\n", dev->name, err);
40         
41         netif_device_detach(dev);
42
43         priv->hw_unavailable++;
44         
45         orinoco_unlock(priv, &flags);
46
47         free_irq(pdev->irq, dev);
48         pci_save_state(pdev);
49         pci_disable_device(pdev);
50         pci_set_power_state(pdev, PCI_D3hot);
51
52         return 0;
53 }
54
55 static int orinoco_pci_resume(struct pci_dev *pdev)
56 {
57         struct net_device *dev = pci_get_drvdata(pdev);
58         struct orinoco_private *priv = netdev_priv(dev);
59         unsigned long flags;
60         int err;
61
62         pci_set_power_state(pdev, 0);
63         err = pci_enable_device(pdev);
64         if (err) {
65                 printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
66                        dev->name);
67                 return err;
68         }
69         pci_restore_state(pdev);
70
71         err = request_irq(pdev->irq, orinoco_interrupt, IRQF_SHARED,
72                           dev->name, dev);
73         if (err) {
74                 printk(KERN_ERR "%s: cannot re-allocate IRQ on resume\n",
75                        dev->name);
76                 pci_disable_device(pdev);
77                 return -EBUSY;
78         }
79
80         err = orinoco_reinit_firmware(dev);
81         if (err) {
82                 printk(KERN_ERR "%s: error %d re-initializing firmware "
83                        "on resume\n", dev->name, err);
84                 return err;
85         }
86
87         spin_lock_irqsave(&priv->lock, flags);
88
89         netif_device_attach(dev);
90
91         priv->hw_unavailable--;
92
93         if (priv->open && (! priv->hw_unavailable)) {
94                 err = __orinoco_up(dev);
95                 if (err)
96                         printk(KERN_ERR "%s: Error %d restarting card on resume\n",
97                                dev->name, err);
98         }
99         
100         spin_unlock_irqrestore(&priv->lock, flags);
101
102         return 0;
103 }
104 #else
105 #define orinoco_pci_suspend NULL
106 #define orinoco_pci_resume NULL
107 #endif
108
109 #endif /* _ORINOCO_PCI_H */