1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
4 *
5 * Contact Information: wlanfae <wlanfae@realtek.com>
6 */
7 #include "rtl_core.h"
8 #include "r8192E_hw.h"
9 #include "r8190P_rtl8256.h"
10 #include "rtl_pm.h"
11
12
rtl92e_suspend(struct pci_dev * pdev,pm_message_t state)13 int rtl92e_suspend(struct pci_dev *pdev, pm_message_t state)
14 {
15 struct net_device *dev = pci_get_drvdata(pdev);
16 struct r8192_priv *priv = rtllib_priv(dev);
17 u32 ulRegRead;
18
19 netdev_info(dev, "============> r8192E suspend call.\n");
20 del_timer_sync(&priv->gpio_polling_timer);
21 cancel_delayed_work_sync(&priv->gpio_change_rf_wq);
22 priv->polling_timer_on = 0;
23
24 if (!netif_running(dev)) {
25 netdev_info(dev,
26 "RTL819XE:UI is open out of suspend function\n");
27 goto out_pci_suspend;
28 }
29
30 if (dev->netdev_ops->ndo_stop)
31 dev->netdev_ops->ndo_stop(dev);
32 netif_device_detach(dev);
33
34 if (!priv->rtllib->bSupportRemoteWakeUp) {
35 rtl92e_set_rf_state(dev, eRfOff, RF_CHANGE_BY_INIT);
36 ulRegRead = rtl92e_readl(dev, CPU_GEN);
37 ulRegRead |= CPU_GEN_SYSTEM_RESET;
38 rtl92e_writel(dev, CPU_GEN, ulRegRead);
39 } else {
40 rtl92e_writel(dev, WFCRC0, 0xffffffff);
41 rtl92e_writel(dev, WFCRC1, 0xffffffff);
42 rtl92e_writel(dev, WFCRC2, 0xffffffff);
43 rtl92e_writeb(dev, PMR, 0x5);
44 rtl92e_writeb(dev, MacBlkCtrl, 0xa);
45 }
46 out_pci_suspend:
47 netdev_info(dev, "WOL is %s\n", priv->rtllib->bSupportRemoteWakeUp ?
48 "Supported" : "Not supported");
49 pci_save_state(pdev);
50 pci_disable_device(pdev);
51 pci_enable_wake(pdev, pci_choose_state(pdev, state),
52 priv->rtllib->bSupportRemoteWakeUp ? 1 : 0);
53 pci_set_power_state(pdev, pci_choose_state(pdev, state));
54
55 mdelay(20);
56
57 return 0;
58 }
59
rtl92e_resume(struct pci_dev * pdev)60 int rtl92e_resume(struct pci_dev *pdev)
61 {
62 struct net_device *dev = pci_get_drvdata(pdev);
63 struct r8192_priv *priv = rtllib_priv(dev);
64 int err;
65 u32 val;
66
67 netdev_info(dev, "================>r8192E resume call.\n");
68
69 pci_set_power_state(pdev, PCI_D0);
70
71 err = pci_enable_device(pdev);
72 if (err) {
73 netdev_err(dev, "pci_enable_device failed on resume\n");
74 return err;
75 }
76 pci_restore_state(pdev);
77
78 pci_read_config_dword(pdev, 0x40, &val);
79 if ((val & 0x0000ff00) != 0)
80 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
81
82 pci_enable_wake(pdev, PCI_D0, 0);
83
84 if (priv->polling_timer_on == 0)
85 rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
86
87 if (!netif_running(dev)) {
88 netdev_info(dev,
89 "RTL819XE:UI is open out of resume function\n");
90 goto out;
91 }
92
93 netif_device_attach(dev);
94 if (dev->netdev_ops->ndo_open)
95 dev->netdev_ops->ndo_open(dev);
96
97 if (!priv->rtllib->bSupportRemoteWakeUp)
98 rtl92e_set_rf_state(dev, eRfOn, RF_CHANGE_BY_INIT);
99
100 out:
101 RT_TRACE(COMP_POWER, "<================r8192E resume call.\n");
102 return 0;
103 }
104
105
