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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)
*/
#include "r8192E.h"
#include "r8192E_hw.h"
#include "r8192_pm.h"
#include "r8190_rtl8256.h"
int rtl8192E_save_state (struct pci_dev *dev, pm_message_t state)
{
printk(KERN_NOTICE "r8192E save state call (state %u).\n", state.event);
return -EAGAIN;
}
int rtl8192E_suspend (struct pci_dev *pdev, pm_message_t state)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct r8192_priv *priv = ieee80211_priv(dev);
u32 ulRegRead;
RT_TRACE(COMP_POWER, "============> r8192E suspend call.\n");
if (!netif_running(dev))
goto out_pci_suspend;
if (dev->netdev_ops->ndo_stop)
dev->netdev_ops->ndo_stop(dev);
// Call MgntActSet_RF_State instead to prevent RF config race condition.
if(!priv->ieee80211->bSupportRemoteWakeUp) {
MgntActSet_RF_State(priv, eRfOff, RF_CHANGE_BY_INIT);
// 2006.11.30. System reset bit
ulRegRead = read_nic_dword(priv, CPU_GEN);
ulRegRead|=CPU_GEN_SYSTEM_RESET;
write_nic_dword(priv, CPU_GEN, ulRegRead);
} else {
//2008.06.03 for WOL
write_nic_dword(priv, WFCRC0, 0xffffffff);
write_nic_dword(priv, WFCRC1, 0xffffffff);
write_nic_dword(priv, WFCRC2, 0xffffffff);
//Write PMR register
write_nic_byte(priv, PMR, 0x5);
//Disable tx, enanble rx
write_nic_byte(priv, MacBlkCtrl, 0xa);
}
out_pci_suspend:
RT_TRACE(COMP_POWER, "r8192E support WOL call??????????????????????\n");
if(priv->ieee80211->bSupportRemoteWakeUp) {
RT_TRACE(COMP_POWER, "r8192E support WOL call!!!!!!!!!!!!!!!!!!.\n");
}
netif_device_detach(dev);
pci_save_state(pdev);
pci_disable_device(pdev);
pci_enable_wake(pdev, pci_choose_state(pdev,state),
priv->ieee80211->bSupportRemoteWakeUp?1:0);
pci_set_power_state(pdev,pci_choose_state(pdev,state));
return 0;
}
int rtl8192E_resume (struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
int err;
u32 val;
RT_TRACE(COMP_POWER, "================>r8192E resume call.\n");
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);
}
pci_enable_wake(pdev, PCI_D0, 0);
if(!netif_running(dev))
goto out;
netif_device_attach(dev);
if (dev->netdev_ops->ndo_open)
dev->netdev_ops->ndo_open(dev);
out:
RT_TRACE(COMP_POWER, "<================r8192E resume call.\n");
return 0;
}
int rtl8192E_enable_wake (struct pci_dev *dev, pm_message_t state, int enable)
{
printk(KERN_NOTICE "r8192E enable wake call (state %u, enable %d).\n",
state.event, enable);
return -EAGAIN;
}
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