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[karo-tx-linux.git] / drivers / staging / rtl8188eu / include / rtw_pwrctrl.h
1 /******************************************************************************
2  *
3  * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms of version 2 of the GNU General Public License as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12  * more details.
13  *
14  * You should have received a copy of the GNU General Public License along with
15  * this program; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17  *
18  *
19  ******************************************************************************/
20 #ifndef __RTW_PWRCTRL_H_
21 #define __RTW_PWRCTRL_H_
22
23 #include <osdep_service.h>
24 #include <drv_types.h>
25
26 #define FW_PWR0         0
27 #define FW_PWR1         1
28 #define FW_PWR2         2
29 #define FW_PWR3         3
30 #define HW_PWR0         7
31 #define HW_PWR1         6
32 #define HW_PWR2         2
33 #define HW_PWR3         0
34 #define HW_PWR4         8
35
36 #define FW_PWRMSK       0x7
37
38 #define XMIT_ALIVE      BIT(0)
39 #define RECV_ALIVE      BIT(1)
40 #define CMD_ALIVE       BIT(2)
41 #define EVT_ALIVE       BIT(3)
42
43 enum power_mgnt {
44         PS_MODE_ACTIVE = 0,
45         PS_MODE_MIN,
46         PS_MODE_MAX,
47         PS_MODE_DTIM,
48         PS_MODE_VOIP,
49         PS_MODE_UAPSD_WMM,
50         PS_MODE_UAPSD,
51         PS_MODE_IBSS,
52         PS_MODE_WWLAN,
53         PM_Radio_Off,
54         PM_Card_Disable,
55         PS_MODE_NUM
56 };
57
58 /*
59         BIT[2:0] = HW state
60         BIT[3] = Protocol PS state,   0: register active state,
61                                       1: register sleep state
62         BIT[4] = sub-state
63 */
64
65 #define PS_DPS                  BIT(0)
66 #define PS_LCLK                 (PS_DPS)
67 #define PS_RF_OFF               BIT(1)
68 #define PS_ALL_ON               BIT(2)
69 #define PS_ST_ACTIVE            BIT(3)
70
71 #define PS_ISR_ENABLE           BIT(4)
72 #define PS_IMR_ENABLE           BIT(5)
73 #define PS_ACK                  BIT(6)
74 #define PS_TOGGLE               BIT(7)
75
76 #define PS_STATE_MASK           (0x0F)
77 #define PS_STATE_HW_MASK        (0x07)
78 #define PS_SEQ_MASK             (0xc0)
79
80 #define PS_STATE(x)             (PS_STATE_MASK & (x))
81 #define PS_STATE_HW(x)          (PS_STATE_HW_MASK & (x))
82 #define PS_SEQ(x)               (PS_SEQ_MASK & (x))
83
84 #define PS_STATE_S0             (PS_DPS)
85 #define PS_STATE_S1             (PS_LCLK)
86 #define PS_STATE_S2             (PS_RF_OFF)
87 #define PS_STATE_S3             (PS_ALL_ON)
88 #define PS_STATE_S4             ((PS_ST_ACTIVE) | (PS_ALL_ON))
89
90 #define PS_IS_RF_ON(x)  ((x) & (PS_ALL_ON))
91 #define PS_IS_ACTIVE(x) ((x) & (PS_ST_ACTIVE))
92 #define CLR_PS_STATE(x) ((x) = ((x) & (0xF0)))
93
94 struct reportpwrstate_parm {
95         unsigned char mode;
96         unsigned char state; /* the CPWM value */
97         unsigned short rsvd;
98 };
99
100 static inline void _init_pwrlock(struct semaphore  *plock)
101 {
102         _rtw_init_sema(plock, 1);
103 }
104
105 static inline void _free_pwrlock(struct semaphore  *plock)
106 {
107         _rtw_free_sema(plock);
108 }
109
110 static inline void _enter_pwrlock(struct semaphore  *plock)
111 {
112         _rtw_down_sema(plock);
113 }
114
115 static inline void _exit_pwrlock(struct semaphore  *plock)
116 {
117         _rtw_up_sema(plock);
118 }
119
120 #define LPS_DELAY_TIME  1*HZ /*  1 sec */
121
122 #define EXE_PWR_NONE    0x01
123 #define EXE_PWR_IPS             0x02
124 #define EXE_PWR_LPS             0x04
125
126 /*  RF state. */
127 enum rt_rf_power_state {
128         rf_on,          /*  RF is on after RFSleep or RFOff */
129         rf_sleep,       /*  802.11 Power Save mode */
130         rf_off,         /*  HW/SW Radio OFF or Inactive Power Save */
131         /* Add the new RF state above this line===== */
132         rf_max
133 };
134
135 /*  RF Off Level for IPS or HW/SW radio off */
136 #define RT_RF_OFF_LEVL_ASPM             BIT(0)  /* PCI ASPM */
137 #define RT_RF_OFF_LEVL_CLK_REQ          BIT(1)  /* PCI clock request */
138 #define RT_RF_OFF_LEVL_PCI_D3           BIT(2)  /* PCI D3 mode */
139 #define RT_RF_OFF_LEVL_HALT_NIC         BIT(3)  /* NIC halt, re-init hw param*/
140 #define RT_RF_OFF_LEVL_FREE_FW          BIT(4)  /* FW free, re-download the FW*/
141 #define RT_RF_OFF_LEVL_FW_32K           BIT(5)  /* FW in 32k */
142 #define RT_RF_PS_LEVEL_ALWAYS_ASPM      BIT(6)  /* Always enable ASPM and Clock
143                                                  * Req in initialization. */
144 #define RT_RF_LPS_DISALBE_2R            BIT(30) /* When LPS is on, disable 2R
145                                                  * if no packet is RX or TX. */
146 #define RT_RF_LPS_LEVEL_ASPM            BIT(31) /* LPS with ASPM */
147
148 #define RT_IN_PS_LEVEL(ppsc, _PS_FLAG)                          \
149         ((ppsc->cur_ps_level & _PS_FLAG) ? true : false)
150 #define RT_CLEAR_PS_LEVEL(ppsc, _PS_FLAG)                       \
151         (ppsc->cur_ps_level &= (~(_PS_FLAG)))
152 #define RT_SET_PS_LEVEL(ppsc, _PS_FLAG)                         \
153         (ppsc->cur_ps_level |= _PS_FLAG)
154
155 enum _PS_BBRegBackup_ {
156         PSBBREG_RF0 = 0,
157         PSBBREG_RF1,
158         PSBBREG_RF2,
159         PSBBREG_AFE0,
160         PSBBREG_TOTALCNT
161 };
162
163 enum { /*  for ips_mode */
164         IPS_NONE = 0,
165         IPS_NORMAL,
166         IPS_LEVEL_2,
167 };
168
169 struct pwrctrl_priv {
170         struct semaphore lock;
171         volatile u8 rpwm; /*  requested power state for fw */
172         volatile u8 cpwm; /*  fw current power state. updated when
173                            * 1. read from HCPWM 2. driver lowers power level */
174         volatile u8 tog; /*  toggling */
175         volatile u8 cpwm_tog; /*  toggling */
176
177         u8      pwr_mode;
178         u8      smart_ps;
179         u8      bcn_ant_mode;
180
181         u32     alives;
182         struct work_struct cpwm_event;
183         u8      bpower_saving;
184
185         u8      b_hw_radio_off;
186         u8      reg_rfoff;
187         u8      reg_pdnmode; /* powerdown mode */
188         u32     rfoff_reason;
189
190         /* RF OFF Level */
191         u32     cur_ps_level;
192         u32     reg_rfps_level;
193         uint    ips_enter_cnts;
194         uint    ips_leave_cnts;
195
196         u8      ips_mode;
197         u8      ips_mode_req;   /*  used to accept the mode setting request,
198                                  *  will update to ipsmode later */
199         uint bips_processing;
200         u32 ips_deny_time; /* will deny IPS when system time less than this */
201         u8 ps_processing; /* temp used to mark whether in rtw_ps_processor */
202
203         u8      bLeisurePs;
204         u8      LpsIdleCount;
205         u8      power_mgnt;
206         u8      bFwCurrentInPSMode;
207         u32     DelayLPSLastTimeStamp;
208         u8      btcoex_rfon;
209         s32             pnp_current_pwr_state;
210         u8              pnp_bstop_trx;
211
212         u8              bInternalAutoSuspend;
213         u8              bInSuspend;
214 #ifdef  CONFIG_BT_COEXIST
215         u8              bAutoResume;
216         u8              autopm_cnt;
217 #endif
218         u8              bSupportRemoteWakeup;
219         struct timer_list pwr_state_check_timer;
220         int             pwr_state_check_interval;
221         u8              pwr_state_check_cnts;
222
223         int             ps_flag;
224
225         enum rt_rf_power_state  rf_pwrstate;/* cur power state */
226         enum rt_rf_power_state  change_rfpwrstate;
227
228         u8              wepkeymask;
229         u8              bHWPowerdown;/* if support hw power down */
230         u8              bHWPwrPindetect;
231         u8              bkeepfwalive;
232         u8              brfoffbyhw;
233         unsigned long PS_BBRegBackup[PSBBREG_TOTALCNT];
234 };
235
236 #define rtw_get_ips_mode_req(pwrctrlpriv) \
237         (pwrctrlpriv)->ips_mode_req
238
239 #define rtw_ips_mode_req(pwrctrlpriv, ips_mode) \
240         ((pwrctrlpriv)->ips_mode_req = (ips_mode))
241
242 #define RTW_PWR_STATE_CHK_INTERVAL 2000
243
244 #define _rtw_set_pwr_state_check_timer(pwrctrlpriv, ms) \
245         do { \
246                 _set_timer(&(pwrctrlpriv)->pwr_state_check_timer, (ms)); \
247         } while (0)
248
249 #define rtw_set_pwr_state_check_timer(pwrctrl)                  \
250         _rtw_set_pwr_state_check_timer((pwrctrl),               \
251                                        (pwrctrl)->pwr_state_check_interval)
252
253 void rtw_init_pwrctrl_priv(struct adapter *adapter);
254 void rtw_free_pwrctrl_priv(struct adapter *adapter);
255
256 void rtw_set_ps_mode(struct adapter *adapter, u8 ps_mode, u8 smart_ps,
257                      u8 bcn_ant_mode);
258 void rtw_set_rpwm(struct adapter *adapter, u8 val8);
259 void LeaveAllPowerSaveMode(struct adapter *adapter);
260 void ips_enter(struct adapter *padapter);
261 int ips_leave(struct adapter *padapter);
262
263 void rtw_ps_processor(struct adapter *padapter);
264
265 enum rt_rf_power_state RfOnOffDetect(struct adapter *iadapter);
266
267 s32 LPS_RF_ON_check(struct adapter *adapter, u32 delay_ms);
268 void LPS_Enter(struct adapter *adapter);
269 void LPS_Leave(struct adapter *adapter);
270
271 u8 rtw_interface_ps_func(struct adapter *adapter,
272                          enum hal_intf_ps_func efunc_id, u8 *val);
273 void rtw_set_ips_deny(struct adapter *adapter, u32 ms);
274 int _rtw_pwr_wakeup(struct adapter *adapter, u32 ips_defer_ms,
275                     const char *caller);
276 #define rtw_pwr_wakeup(adapter)                                         \
277          _rtw_pwr_wakeup(adapter, RTW_PWR_STATE_CHK_INTERVAL, __func__)
278 #define rtw_pwr_wakeup_ex(adapter, ips_deffer_ms)                       \
279          _rtw_pwr_wakeup(adapter, ips_deffer_ms, __func__)
280 int rtw_pm_set_ips(struct adapter *adapter, u8 mode);
281 int rtw_pm_set_lps(struct adapter *adapter, u8 mode);
282
283 #endif  /* __RTL871X_PWRCTRL_H_ */