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