drivers/staging/rtl8192su/r8192U_pm.c

   1 /*
   2    Power management interface routines.
   3    Written by Mariusz Matuszek.
   4    This code is currently just a placeholder for later work and
   5    does not do anything useful.
   6
   7    This is part of rtl8180 OpenSource driver.
   8    Copyright (C) Andrea Merello 2004  <andreamrl@tiscali.it>
   9    Released under the terms of GPL (General Public Licence)
  10 */
  11
  12 #ifdef CONFIG_RTL8192_PM
  13 #include "r8192U.h"
  14 #include "r8192U_pm.h"
  15
  16 /*****************************************************************************/
  17 int rtl8192U_save_state (struct pci_dev *dev, u32 state)
  18 {
  19         printk(KERN_NOTICE "r8192U save state call (state %u).\n", state);
  20         return(-EAGAIN);
  21 }
  22
  23 int rtl8192U_suspend(struct usb_interface *intf, pm_message_t state)
  24 {
  25 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
  26         struct net_device *dev = usb_get_intfdata(intf);
  27 #else
  28         //struct net_device *dev = (struct net_device *)ptr;
  29 #endif
  30         RT_TRACE(COMP_POWER, "============> r8192U suspend call.\n");
  31
  32         if(dev) {
  33                  if (!netif_running(dev)) {
  34                       printk(KERN_WARNING "netif not running, go out suspend function\n");
  35                       return 0;
  36                  }
  37
  38                 if (dev->netdev_ops->ndo_stop)
  39                         dev->netdev_ops->ndo_stop(dev);
  40
  41                 mdelay(10);
  42
  43                 netif_device_detach(dev);
  44         }
  45
  46         return 0;
  47 }
  48
  49 int rtl8192U_resume (struct usb_interface *intf)
  50 {
  51 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
  52         struct net_device *dev = usb_get_intfdata(intf);
  53 #else
  54         //struct net_device *dev = (struct net_device *)ptr;
  55 #endif
  56
  57         RT_TRACE(COMP_POWER, "================>r8192U resume call.");
  58
  59         if(dev) {
  60                 if (!netif_running(dev)){
  61                         printk(KERN_WARNING "netif not running, go out resume function\n");
  62                         return 0;
  63                 }
  64
  65                 netif_device_attach(dev);
  66
  67                 if (dev->netdev_ops->ndo_open)
  68                         dev->netdev_ops->ndo_open(dev);
  69         }
  70
  71         return 0;
  72 }
  73
  74 int rtl8192U_enable_wake (struct pci_dev *dev, u32 state, int enable)
  75 {
  76         printk(KERN_NOTICE "r8192U enable wake call (state %u, enable %d).\n",
  77                         state, enable);
  78         return(-EAGAIN);
  79 }
  80
  81 #endif //CONFIG_RTL8192_PM