1 /******************************************************************************
2 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
3 *
4 * This program is distributed in the hope that it will be useful, but WITHOUT
5 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
6 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
7 * more details.
8 *
9 * The full GNU General Public License is included in this distribution in the
10 * file called LICENSE.
11 *
12 * Contact Information:
13 * wlanfae <wlanfae@realtek.com>
14 *****************************************************************************/
15
16 #include "rtl_core.h"
17 #include "r8192E_hw.h"
18 #include "r8190P_rtl8256.h"
19 #include "rtl_pm.h"
20
21
rtl92e_suspend(struct pci_dev * pdev,pm_message_t state)22 int rtl92e_suspend(struct pci_dev *pdev, pm_message_t state)
23 {
24 struct net_device *dev = pci_get_drvdata(pdev);
25 struct r8192_priv *priv = rtllib_priv(dev);
26 u32 ulRegRead;
27
28 netdev_info(dev, "============> r8192E suspend call.\n");
29 del_timer_sync(&priv->gpio_polling_timer);
30 cancel_delayed_work_sync(&priv->gpio_change_rf_wq);
31 priv->polling_timer_on = 0;
32
33 if (!netif_running(dev)) {
34 netdev_info(dev,
35 "RTL819XE:UI is open out of suspend function\n");
36 goto out_pci_suspend;
37 }
38
39 if (dev->netdev_ops->ndo_stop)
40 dev->netdev_ops->ndo_stop(dev);
41 netif_device_detach(dev);
42
43 if (!priv->rtllib->bSupportRemoteWakeUp) {
44 rtl92e_set_rf_state(dev, eRfOff, RF_CHANGE_BY_INIT);
45 ulRegRead = rtl92e_readl(dev, CPU_GEN);
46 ulRegRead |= CPU_GEN_SYSTEM_RESET;
47 rtl92e_writel(dev, CPU_GEN, ulRegRead);
48 } else {
49 rtl92e_writel(dev, WFCRC0, 0xffffffff);
50 rtl92e_writel(dev, WFCRC1, 0xffffffff);
51 rtl92e_writel(dev, WFCRC2, 0xffffffff);
52 rtl92e_writeb(dev, PMR, 0x5);
53 rtl92e_writeb(dev, MacBlkCtrl, 0xa);
54 }
55 out_pci_suspend:
56 netdev_info(dev, "WOL is %s\n", priv->rtllib->bSupportRemoteWakeUp ?
57 "Supported" : "Not supported");
58 pci_save_state(pdev);
59 pci_disable_device(pdev);
60 pci_enable_wake(pdev, pci_choose_state(pdev, state),
61 priv->rtllib->bSupportRemoteWakeUp ? 1 : 0);
62 pci_set_power_state(pdev, pci_choose_state(pdev, state));
63
64 mdelay(20);
65
66 return 0;
67 }
68
rtl92e_resume(struct pci_dev * pdev)69 int rtl92e_resume(struct pci_dev *pdev)
70 {
71 struct net_device *dev = pci_get_drvdata(pdev);
72 struct r8192_priv *priv = rtllib_priv(dev);
73 int err;
74 u32 val;
75
76 netdev_info(dev, "================>r8192E resume call.\n");
77
78 pci_set_power_state(pdev, PCI_D0);
79
80 err = pci_enable_device(pdev);
81 if (err) {
82 netdev_err(dev, "pci_enable_device failed on resume\n");
83 return err;
84 }
85 pci_restore_state(pdev);
86
87 pci_read_config_dword(pdev, 0x40, &val);
88 if ((val & 0x0000ff00) != 0)
89 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
90
91 pci_enable_wake(pdev, PCI_D0, 0);
92
93 if (priv->polling_timer_on == 0)
94 rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
95
96 if (!netif_running(dev)) {
97 netdev_info(dev,
98 "RTL819XE:UI is open out of resume function\n");
99 goto out;
100 }
101
102 netif_device_attach(dev);
103 if (dev->netdev_ops->ndo_open)
104 dev->netdev_ops->ndo_open(dev);
105
106 if (!priv->rtllib->bSupportRemoteWakeUp)
107 rtl92e_set_rf_state(dev, eRfOn, RF_CHANGE_BY_INIT);
108
109 out:
110 RT_TRACE(COMP_POWER, "<================r8192E resume call.\n");
111 return 0;
112 }
113
114
