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
12int rtl92e_suspend(struct device *dev_d)
13{
14	struct net_device *dev = dev_get_drvdata(dev_d);
15	struct r8192_priv *priv = rtllib_priv(dev);
16	u32	ulRegRead;
17
18	netdev_info(dev, "============> r8192E suspend call.\n");
19	del_timer_sync(&priv->gpio_polling_timer);
20	cancel_delayed_work_sync(&priv->gpio_change_rf_wq);
21	priv->polling_timer_on = 0;
22
23	if (!netif_running(dev)) {
24		netdev_info(dev,
25			    "RTL819XE:UI is open out of suspend function\n");
26		goto out_pci_suspend;
27	}
28
29	if (dev->netdev_ops->ndo_stop)
30		dev->netdev_ops->ndo_stop(dev);
31	netif_device_detach(dev);
32
33	if (!priv->rtllib->bSupportRemoteWakeUp) {
34		rtl92e_set_rf_state(dev, rf_off, RF_CHANGE_BY_INIT);
35		ulRegRead = rtl92e_readl(dev, CPU_GEN);
36		ulRegRead |= CPU_GEN_SYSTEM_RESET;
37		rtl92e_writel(dev, CPU_GEN, ulRegRead);
38	} else {
39		rtl92e_writel(dev, WFCRC0, 0xffffffff);
40		rtl92e_writel(dev, WFCRC1, 0xffffffff);
41		rtl92e_writel(dev, WFCRC2, 0xffffffff);
42		rtl92e_writeb(dev, PMR, 0x5);
43		rtl92e_writeb(dev, MAC_BLK_CTRL, 0xa);
44	}
45out_pci_suspend:
46	netdev_info(dev, "WOL is %s\n", priv->rtllib->bSupportRemoteWakeUp ?
47			    "Supported" : "Not supported");
48	device_set_wakeup_enable(dev_d, priv->rtllib->bSupportRemoteWakeUp);
49
50	mdelay(20);
51
52	return 0;
53}
54
55int rtl92e_resume(struct device *dev_d)
56{
57	struct pci_dev *pdev = to_pci_dev(dev_d);
58	struct net_device *dev = dev_get_drvdata(dev_d);
59	struct r8192_priv *priv = rtllib_priv(dev);
60	u32 val;
61
62	netdev_info(dev, "================>r8192E resume call.\n");
63
64	pci_read_config_dword(pdev, 0x40, &val);
65	if ((val & 0x0000ff00) != 0)
66		pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
67
68	device_wakeup_disable(dev_d);
69
70	if (priv->polling_timer_on == 0)
71		rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
72
73	if (!netif_running(dev)) {
74		netdev_info(dev,
75			    "RTL819XE:UI is open out of resume function\n");
76		goto out;
77	}
78
79	netif_device_attach(dev);
80	if (dev->netdev_ops->ndo_open)
81		dev->netdev_ops->ndo_open(dev);
82
83	if (!priv->rtllib->bSupportRemoteWakeUp)
84		rtl92e_set_rf_state(dev, rf_on, RF_CHANGE_BY_INIT);
85
86out:
87	return 0;
88}
89
90