tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 */
16struct orinoco_pci_card {
17 void __iomem *bridge_io;
18 void __iomem *attr_io;
19};
20
21#ifdef CONFIG_PM
22static 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
55static 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 */