| /* |
| Power management interface routines. |
| Written by Mariusz Matuszek. |
| This code is currently just a placeholder for later work and |
| does not do anything useful. |
| |
| This is part of rtl8180 OpenSource driver. |
| Copyright (C) Andrea Merello 2004 <andreamrl@tiscali.it> |
| Released under the terms of GPL (General Public Licence) |
| */ |
| |
| #ifdef CONFIG_RTL8180_PM |
| |
| |
| #include "r8180_hw.h" |
| #include "r8180_pm.h" |
| #include "r8180.h" |
| |
| int rtl8180_save_state (struct pci_dev *dev, u32 state) |
| { |
| printk(KERN_NOTICE "r8180 save state call (state %u).\n", state); |
| return(-EAGAIN); |
| } |
| |
| int rtl8180_suspend (struct pci_dev *pdev, pm_message_t state) |
| { |
| struct net_device *dev = pci_get_drvdata(pdev); |
| // struct r8180_priv *priv = ieee80211_priv(dev); |
| |
| if (!netif_running(dev)) |
| goto out_pci_suspend; |
| |
| dev->stop(dev); |
| |
| netif_device_detach(dev); |
| |
| out_pci_suspend: |
| pci_save_state(pdev); |
| pci_disable_device(pdev); |
| pci_set_power_state(pdev,pci_choose_state(pdev,state)); |
| return 0; |
| } |
| |
| int rtl8180_resume (struct pci_dev *pdev) |
| { |
| struct net_device *dev = pci_get_drvdata(pdev); |
| // struct r8180_priv *priv = ieee80211_priv(dev); |
| int err; |
| u32 val; |
| |
| pci_set_power_state(pdev, PCI_D0); |
| |
| err = pci_enable_device(pdev); |
| if(err) { |
| printk(KERN_ERR "%s: pci_enable_device failed on resume\n", |
| dev->name); |
| |
| return err; |
| } |
| pci_restore_state(pdev); |
| /* |
| * Suspend/Resume resets the PCI configuration space, so we have to |
| * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries |
| * from interfering with C3 CPU state. pci_restore_state won't help |
| * here since it only restores the first 64 bytes pci config header. |
| */ |
| pci_read_config_dword(pdev, 0x40, &val); |
| if ((val & 0x0000ff00) != 0) |
| pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); |
| |
| if(!netif_running(dev)) |
| goto out; |
| |
| dev->open(dev); |
| netif_device_attach(dev); |
| out: |
| return 0; |
| } |
| |
| |
| int rtl8180_enable_wake (struct pci_dev *dev, u32 state, int enable) |
| { |
| printk(KERN_NOTICE "r8180 enable wake call (state %u, enable %d).\n", |
| state, enable); |
| return(-EAGAIN); |
| } |
| |
| |
| |
| #endif //CONFIG_RTL8180_PM |