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         sema_init(plock, 1);
 103 }
 104
 105 static inline void _enter_pwrlock(struct semaphore  *plock)
 106 {
 107         _rtw_down_sema(plock);
 108 }
 109
 110 static inline void _exit_pwrlock(struct semaphore  *plock)
 111 {
 112         up(plock);
 113 }
 114
 115 #define LPS_DELAY_TIME  1*HZ /*  1 sec */
 116
 117 #define EXE_PWR_NONE    0x01
 118 #define EXE_PWR_IPS             0x02
 119 #define EXE_PWR_LPS             0x04
 120
 121 /*  RF state. */
 122 enum rt_rf_power_state {
 123         rf_on,          /*  RF is on after RFSleep or RFOff */
 124         rf_sleep,       /*  802.11 Power Save mode */
 125         rf_off,         /*  HW/SW Radio OFF or Inactive Power Save */
 126         /* Add the new RF state above this line===== */
 127         rf_max
 128 };
 129
 130 /*  RF Off Level for IPS or HW/SW radio off */
 131 #define RT_RF_OFF_LEVL_ASPM             BIT(0)  /* PCI ASPM */
 132 #define RT_RF_OFF_LEVL_CLK_REQ          BIT(1)  /* PCI clock request */
 133 #define RT_RF_OFF_LEVL_PCI_D3           BIT(2)  /* PCI D3 mode */
 134 #define RT_RF_OFF_LEVL_HALT_NIC         BIT(3)  /* NIC halt, re-init hw param*/
 135 #define RT_RF_OFF_LEVL_FREE_FW          BIT(4)  /* FW free, re-download the FW*/
 136 #define RT_RF_OFF_LEVL_FW_32K           BIT(5)  /* FW in 32k */
 137 #define RT_RF_PS_LEVEL_ALWAYS_ASPM      BIT(6)  /* Always enable ASPM and Clock
 138                                                  * Req in initialization. */
 139 #define RT_RF_LPS_DISALBE_2R            BIT(30) /* When LPS is on, disable 2R
 140                                                  * if no packet is RX or TX. */
 141 #define RT_RF_LPS_LEVEL_ASPM            BIT(31) /* LPS with ASPM */
 142
 143 #define RT_IN_PS_LEVEL(ppsc, _PS_FLAG)                          \
 144         ((ppsc->cur_ps_level & _PS_FLAG) ? true : false)
 145 #define RT_CLEAR_PS_LEVEL(ppsc, _PS_FLAG)                       \
 146         (ppsc->cur_ps_level &= (~(_PS_FLAG)))
 147 #define RT_SET_PS_LEVEL(ppsc, _PS_FLAG)                         \
 148         (ppsc->cur_ps_level |= _PS_FLAG)
 149
 150 enum _PS_BBRegBackup_ {
 151         PSBBREG_RF0 = 0,
 152         PSBBREG_RF1,
 153         PSBBREG_RF2,
 154         PSBBREG_AFE0,
 155         PSBBREG_TOTALCNT
 156 };
 157
 158 enum { /*  for ips_mode */
 159         IPS_NONE = 0,
 160         IPS_NORMAL,
 161         IPS_LEVEL_2,
 162 };
 163
 164 struct pwrctrl_priv {
 165         struct semaphore lock;
 166         volatile u8 rpwm; /*  requested power state for fw */
 167         volatile u8 cpwm; /*  fw current power state. updated when
 168                            * 1. read from HCPWM 2. driver lowers power level */
 169         volatile u8 tog; /*  toggling */
 170         volatile u8 cpwm_tog; /*  toggling */
 171
 172         u8      pwr_mode;
 173         u8      smart_ps;
 174         u8      bcn_ant_mode;
 175
 176         u32     alives;
 177         struct work_struct cpwm_event;
 178         u8      bpower_saving;
 179
 180         u8      b_hw_radio_off;
 181         u8      reg_rfoff;
 182         u8      reg_pdnmode; /* powerdown mode */
 183         u32     rfoff_reason;
 184
 185         /* RF OFF Level */
 186         u32     cur_ps_level;
 187         u32     reg_rfps_level;
 188         uint    ips_enter_cnts;
 189         uint    ips_leave_cnts;
 190
 191         u8      ips_mode;
 192         u8      ips_mode_req;   /*  used to accept the mode setting request,
 193                                  *  will update to ipsmode later */
 194         uint bips_processing;
 195         unsigned long ips_deny_time; /* will deny IPS when system time less than this */
 196         u8 ps_processing; /* temp used to mark whether in rtw_ps_processor */
 197
 198         u8      bLeisurePs;
 199         u8      LpsIdleCount;
 200         u8      power_mgnt;
 201         u8      bFwCurrentInPSMode;
 202         u32     DelayLPSLastTimeStamp;
 203         u8      btcoex_rfon;
 204         s32             pnp_current_pwr_state;
 205         u8              pnp_bstop_trx;
 206
 207         u8              bInternalAutoSuspend;
 208         u8              bInSuspend;
 209         u8              bSupportRemoteWakeup;
 210         struct timer_list pwr_state_check_timer;
 211         int             pwr_state_check_interval;
 212         u8              pwr_state_check_cnts;
 213
 214         int             ps_flag;
 215
 216         enum rt_rf_power_state  rf_pwrstate;/* cur power state */
 217         enum rt_rf_power_state  change_rfpwrstate;
 218
 219         u8              wepkeymask;
 220         u8              bHWPowerdown;/* if support hw power down */
 221         u8              bHWPwrPindetect;
 222         u8              bkeepfwalive;
 223         u8              brfoffbyhw;
 224         unsigned long PS_BBRegBackup[PSBBREG_TOTALCNT];
 225 };
 226
 227 #define rtw_get_ips_mode_req(pwrctrlpriv) \
 228         (pwrctrlpriv)->ips_mode_req
 229
 230 #define rtw_ips_mode_req(pwrctrlpriv, ips_mode) \
 231         ((pwrctrlpriv)->ips_mode_req = (ips_mode))
 232
 233 #define RTW_PWR_STATE_CHK_INTERVAL 2000
 234
 235 #define _rtw_set_pwr_state_check_timer(pwrctrlpriv, ms) \
 236         mod_timer(&pwrctrlpriv->pwr_state_check_timer,  \
 237                   jiffies + msecs_to_jiffies(ms))
 238
 239 #define rtw_set_pwr_state_check_timer(pwrctrl)                  \
 240         _rtw_set_pwr_state_check_timer((pwrctrl),               \
 241                                        (pwrctrl)->pwr_state_check_interval)
 242
 243 void rtw_init_pwrctrl_priv(struct adapter *adapter);
 244
 245 void rtw_set_ps_mode(struct adapter *adapter, u8 ps_mode, u8 smart_ps,
 246                      u8 bcn_ant_mode);
 247 void rtw_set_rpwm(struct adapter *adapter, u8 val8);
 248 void LeaveAllPowerSaveMode(struct adapter *adapter);
 249 void ips_enter(struct adapter *padapter);
 250 int ips_leave(struct adapter *padapter);
 251
 252 void rtw_ps_processor(struct adapter *padapter);
 253
 254 enum rt_rf_power_state RfOnOffDetect(struct adapter *iadapter);
 255
 256 s32 LPS_RF_ON_check(struct adapter *adapter, u32 delay_ms);
 257 void LPS_Enter(struct adapter *adapter);
 258 void LPS_Leave(struct adapter *adapter);
 259
 260 int _rtw_pwr_wakeup(struct adapter *adapter, u32 ips_defer_ms,
 261                     const char *caller);
 262 #define rtw_pwr_wakeup(adapter)                                         \
 263          _rtw_pwr_wakeup(adapter, RTW_PWR_STATE_CHK_INTERVAL, __func__)
 264 #define rtw_pwr_wakeup_ex(adapter, ips_deffer_ms)                       \
 265          _rtw_pwr_wakeup(adapter, ips_deffer_ms, __func__)
 266 int rtw_pm_set_ips(struct adapter *adapter, u8 mode);
 267 int rtw_pm_set_lps(struct adapter *adapter, u8 mode);
 268
 269 #endif  /* __RTL871X_PWRCTRL_H_ */