diff options
Diffstat (limited to 'drivers/staging/rtl8192e/r8192_pm.c')
| -rw-r--r-- | drivers/staging/rtl8192e/r8192_pm.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/drivers/staging/rtl8192e/r8192_pm.c b/drivers/staging/rtl8192e/r8192_pm.c new file mode 100644 index 00000000000..d0f7c21bdf7 --- /dev/null +++ b/drivers/staging/rtl8192e/r8192_pm.c @@ -0,0 +1,181 @@ +/* + 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_PM_RTL + +#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); + u8 ucRegRead; + u32 ulRegRead; + + RT_TRACE(COMP_POWER, "============> r8192E suspend call.\n"); + if (!netif_running(dev)) + goto out_pci_suspend; + + dev->stop(dev); +#if 0 + + netif_carrier_off(dev); + + ieee80211_softmac_stop_protocol(priv->ieee80211); + + write_nic_byte(dev,MSR,(read_nic_byte(dev,MSR)&0xfc)|MSR_LINK_NONE); + if(!priv->ieee80211->bSupportRemoteWakeUp) { + /* disable tx/rx. In 8185 we write 0x10 (Reset bit), + * but here we make reference to WMAC and wirte 0x0. + * 2006.11.21 Emily + */ + write_nic_byte(dev, CMDR, 0); + } + //disable interrupt + write_nic_dword(dev,INTA_MASK,0); + priv->irq_enabled = 0; + write_nic_dword(dev,ISR,read_nic_dword(dev, ISR)); + + /* need to free DM related functions */ +#if LINUX_VERSION_CODE >=KERNEL_VERSION(2,6,20) + cancel_work_sync(&priv->reset_wq); +#else +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0) + cancel_delayed_work(&priv->reset_wq); +#endif +#endif + del_timer_sync(&priv->fsync_timer); + del_timer_sync(&priv->watch_dog_timer); +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0) + cancel_delayed_work(&priv->watch_dog_wq); + cancel_delayed_work(&priv->update_beacon_wq); +#endif +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20) + cancel_work_sync(&priv->qos_activate); +#else +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0) + cancel_delayed_work(&priv->qos_activate); +#endif +#endif + + /* TODO +#if ((DEV_BUS_TYPE == PCI_INTERFACE) && (HAL_CODE_BASE == RTL8192)) +pHalData->bHwRfOffAction = 2; +#endif +*/ +#endif + // Call MgntActSet_RF_State instead to prevent RF config race condition. + // By Bruce, 2008-01-17. + // + if(!priv->ieee80211->bSupportRemoteWakeUp) { + MgntActSet_RF_State(dev, eRfOff, RF_CHANGE_BY_INIT); + // 2006.11.30. System reset bit + ulRegRead = read_nic_dword(dev, CPU_GEN); + ulRegRead|=CPU_GEN_SYSTEM_RESET; + write_nic_dword(dev, CPU_GEN, ulRegRead); + } else { + //2008.06.03 for WOL + write_nic_dword(dev, WFCRC0, 0xffffffff); + write_nic_dword(dev, WFCRC1, 0xffffffff); + write_nic_dword(dev, WFCRC2, 0xffffffff); +#ifdef RTL8190P + //GPIO 0 = TRUE + ucRegRead = read_nic_byte(dev, GPO); + ucRegRead |= BIT0; + write_nic_byte(dev, GPO, ucRegRead); +#endif + //Write PMR register + write_nic_byte(dev, PMR, 0x5); + //Disable tx, enanble rx + write_nic_byte(dev, 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); + //struct r8192_priv *priv = ieee80211_priv(dev); + //union iwreq_data wrqu; + int err; + u32 val; + + RT_TRACE(COMP_POWER, "================>r8192E resume call."); + + 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); + + dev->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); +} + +#endif //CONFIG_PM_RTL |