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/*
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
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