1 /******************************************************************************
2 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
4 * Based on the r8180 driver, which is:
5 * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of version 2 of the GNU General Public License as
8 * published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along with
16 * this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
19 * The full GNU General Public License is included in this distribution in the
20 * file called LICENSE.
22 * Contact Information:
23 * wlanfae <wlanfae@realtek.com>
24 *****************************************************************************/
27 #include "r8192E_phy.h"
28 #include "r8192E_phyreg.h"
29 #include "r8190P_rtl8256.h" /* RTL8225 Radio frontend */
30 #include "r8192E_cmdpkt.h"
31 #include <linux/jiffies.h>
33 static void rtl8192_hw_sleep_down(struct net_device *dev)
35 struct r8192_priv *priv = rtllib_priv(dev);
36 unsigned long flags = 0;
38 spin_lock_irqsave(&priv->rf_ps_lock, flags);
39 if (priv->RFChangeInProgress) {
40 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
42 "rtl8192_hw_sleep_down(): RF Change in progress!\n");
45 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
46 RT_TRACE(COMP_DBG, "%s()============>come to sleep down\n", __func__);
48 rtl92e_set_rf_state(dev, eRfSleep, RF_CHANGE_BY_PS, false);
51 void rtl92e_hw_sleep_wq(void *data)
53 struct rtllib_device *ieee = container_of_dwork_rsl(data,
54 struct rtllib_device, hw_sleep_wq);
55 struct net_device *dev = ieee->dev;
57 rtl8192_hw_sleep_down(dev);
60 void rtl8192_hw_wakeup(struct net_device *dev)
62 struct r8192_priv *priv = rtllib_priv(dev);
63 unsigned long flags = 0;
65 spin_lock_irqsave(&priv->rf_ps_lock, flags);
66 if (priv->RFChangeInProgress) {
67 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
69 "rtl8192_hw_wakeup(): RF Change in progress!\n");
70 queue_delayed_work_rsl(priv->rtllib->wq,
71 &priv->rtllib->hw_wakeup_wq,
72 msecs_to_jiffies(10));
75 spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
76 RT_TRACE(COMP_PS, "%s()============>come to wake up\n", __func__);
77 rtl92e_set_rf_state(dev, eRfOn, RF_CHANGE_BY_PS, false);
80 void rtl8192_hw_wakeup_wq(void *data)
82 struct rtllib_device *ieee = container_of_dwork_rsl(data,
83 struct rtllib_device, hw_wakeup_wq);
84 struct net_device *dev = ieee->dev;
86 rtl8192_hw_wakeup(dev);
89 #define MIN_SLEEP_TIME 50
90 #define MAX_SLEEP_TIME 10000
91 void rtl8192_hw_to_sleep(struct net_device *dev, u64 time)
93 struct r8192_priv *priv = rtllib_priv(dev);
97 unsigned long timeout;
99 spin_lock_irqsave(&priv->ps_lock, flags);
101 time -= msecs_to_jiffies(8 + 16 + 7);
103 timeout = jiffies + msecs_to_jiffies(MIN_SLEEP_TIME);
104 if (time_before((unsigned long)time, timeout)) {
105 spin_unlock_irqrestore(&priv->ps_lock, flags);
106 netdev_info(dev, "too short to sleep::%lld < %ld\n",
107 time - jiffies, msecs_to_jiffies(MIN_SLEEP_TIME));
110 timeout = jiffies + msecs_to_jiffies(MAX_SLEEP_TIME);
111 if (time_after((unsigned long)time, timeout)) {
112 netdev_info(dev, "========>too long to sleep:%lld > %ld\n",
113 time - jiffies, msecs_to_jiffies(MAX_SLEEP_TIME));
114 spin_unlock_irqrestore(&priv->ps_lock, flags);
117 tmp = time - jiffies;
118 queue_delayed_work_rsl(priv->rtllib->wq,
119 &priv->rtllib->hw_wakeup_wq, tmp);
120 queue_delayed_work_rsl(priv->rtllib->wq,
121 (void *)&priv->rtllib->hw_sleep_wq, 0);
122 spin_unlock_irqrestore(&priv->ps_lock, flags);
125 static void InactivePsWorkItemCallback(struct net_device *dev)
127 struct r8192_priv *priv = rtllib_priv(dev);
128 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
129 &(priv->rtllib->PowerSaveControl);
131 RT_TRACE(COMP_PS, "InactivePsWorkItemCallback() --------->\n");
132 pPSC->bSwRfProcessing = true;
134 RT_TRACE(COMP_PS, "InactivePsWorkItemCallback(): Set RF to %s.\n",
135 pPSC->eInactivePowerState == eRfOff ? "OFF" : "ON");
136 rtl92e_set_rf_state(dev, pPSC->eInactivePowerState, RF_CHANGE_BY_IPS,
139 pPSC->bSwRfProcessing = false;
140 RT_TRACE(COMP_PS, "InactivePsWorkItemCallback() <---------\n");
143 void rtl92e_ips_enter(struct net_device *dev)
145 struct r8192_priv *priv = rtllib_priv(dev);
146 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
147 &(priv->rtllib->PowerSaveControl);
148 enum rt_rf_power_state rtState;
150 if (pPSC->bInactivePs) {
151 rtState = priv->rtllib->eRFPowerState;
152 if (rtState == eRfOn && !pPSC->bSwRfProcessing &&
153 (priv->rtllib->state != RTLLIB_LINKED) &&
154 (priv->rtllib->iw_mode != IW_MODE_MASTER)) {
155 RT_TRACE(COMP_PS, "rtl92e_ips_enter(): Turn off RF.\n");
156 pPSC->eInactivePowerState = eRfOff;
157 priv->isRFOff = true;
158 priv->bInPowerSaveMode = true;
159 InactivePsWorkItemCallback(dev);
164 void rtl92e_ips_leave(struct net_device *dev)
166 struct r8192_priv *priv = rtllib_priv(dev);
167 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
168 &(priv->rtllib->PowerSaveControl);
169 enum rt_rf_power_state rtState;
171 if (pPSC->bInactivePs) {
172 rtState = priv->rtllib->eRFPowerState;
173 if (rtState != eRfOn && !pPSC->bSwRfProcessing &&
174 priv->rtllib->RfOffReason <= RF_CHANGE_BY_IPS) {
175 RT_TRACE(COMP_PS, "rtl92e_ips_leave(): Turn on RF.\n");
176 pPSC->eInactivePowerState = eRfOn;
177 priv->bInPowerSaveMode = false;
178 InactivePsWorkItemCallback(dev);
183 void rtl92e_ips_leave_wq(void *data)
185 struct rtllib_device *ieee = container_of_work_rsl(data,
186 struct rtllib_device, ips_leave_wq);
187 struct net_device *dev = ieee->dev;
188 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
190 down(&priv->rtllib->ips_sem);
191 rtl92e_ips_leave(dev);
192 up(&priv->rtllib->ips_sem);
195 void rtllib_ips_leave_wq(struct net_device *dev)
197 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
198 enum rt_rf_power_state rtState;
200 rtState = priv->rtllib->eRFPowerState;
202 if (priv->rtllib->PowerSaveControl.bInactivePs) {
203 if (rtState == eRfOff) {
204 if (priv->rtllib->RfOffReason > RF_CHANGE_BY_IPS) {
205 netdev_warn(dev, "%s(): RF is OFF.\n",
209 netdev_info(dev, "=========>%s(): rtl92e_ips_leave\n",
211 queue_work_rsl(priv->rtllib->wq,
212 &priv->rtllib->ips_leave_wq);
217 void rtllib_ips_leave(struct net_device *dev)
219 struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
221 down(&priv->rtllib->ips_sem);
222 rtl92e_ips_leave(dev);
223 up(&priv->rtllib->ips_sem);
226 static bool MgntActSet_802_11_PowerSaveMode(struct net_device *dev,
229 struct r8192_priv *priv = rtllib_priv(dev);
231 if (priv->rtllib->iw_mode == IW_MODE_ADHOC)
234 RT_TRACE(COMP_LPS, "%s(): set ieee->ps = %x\n", __func__, rtPsMode);
236 priv->rtllib->ps = rtPsMode;
237 if (priv->rtllib->sta_sleep != LPS_IS_WAKE &&
238 rtPsMode == RTLLIB_PS_DISABLED) {
241 rtl8192_hw_wakeup(dev);
242 priv->rtllib->sta_sleep = LPS_IS_WAKE;
244 spin_lock_irqsave(&(priv->rtllib->mgmt_tx_lock), flags);
246 "LPS leave: notify AP we are awaked ++++++++++ SendNullFunctionData\n");
247 rtllib_sta_ps_send_null_frame(priv->rtllib, 0);
248 spin_unlock_irqrestore(&(priv->rtllib->mgmt_tx_lock), flags);
254 void rtl92e_leisure_ps_enter(struct net_device *dev)
256 struct r8192_priv *priv = rtllib_priv(dev);
257 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
258 &(priv->rtllib->PowerSaveControl);
260 RT_TRACE(COMP_PS, "rtl92e_leisure_ps_enter()...\n");
262 "pPSC->bLeisurePs = %d, ieee->ps = %d,pPSC->LpsIdleCount is %d,RT_CHECK_FOR_HANG_PERIOD is %d\n",
263 pPSC->bLeisurePs, priv->rtllib->ps, pPSC->LpsIdleCount,
264 RT_CHECK_FOR_HANG_PERIOD);
266 if (!((priv->rtllib->iw_mode == IW_MODE_INFRA) &&
267 (priv->rtllib->state == RTLLIB_LINKED))
268 || (priv->rtllib->iw_mode == IW_MODE_ADHOC) ||
269 (priv->rtllib->iw_mode == IW_MODE_MASTER))
272 if (pPSC->bLeisurePs) {
273 if (pPSC->LpsIdleCount >= RT_CHECK_FOR_HANG_PERIOD) {
275 if (priv->rtllib->ps == RTLLIB_PS_DISABLED) {
278 "rtl92e_leisure_ps_enter(): Enter 802.11 power save mode...\n");
280 if (!pPSC->bFwCtrlLPS) {
281 if (priv->rtllib->SetFwCmdHandler)
282 priv->rtllib->SetFwCmdHandler(
283 dev, FW_CMD_LPS_ENTER);
285 MgntActSet_802_11_PowerSaveMode(dev,
290 pPSC->LpsIdleCount++;
294 void rtl92e_leisure_ps_leave(struct net_device *dev)
296 struct r8192_priv *priv = rtllib_priv(dev);
297 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
298 &(priv->rtllib->PowerSaveControl);
301 RT_TRACE(COMP_PS, "rtl92e_leisure_ps_leave()...\n");
302 RT_TRACE(COMP_PS, "pPSC->bLeisurePs = %d, ieee->ps = %d\n",
303 pPSC->bLeisurePs, priv->rtllib->ps);
305 if (pPSC->bLeisurePs) {
306 if (priv->rtllib->ps != RTLLIB_PS_DISABLED) {
308 "rtl92e_leisure_ps_leave(): Busy Traffic , Leave 802.11 power save..\n");
309 MgntActSet_802_11_PowerSaveMode(dev,
312 if (!pPSC->bFwCtrlLPS) {
313 if (priv->rtllib->SetFwCmdHandler)
314 priv->rtllib->SetFwCmdHandler(dev,