cregit-Linux how code gets into the kernel

Release 4.8 drivers/staging/rtl8188eu/include/rtw_pwrctrl.h

/******************************************************************************
 *
 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 ******************************************************************************/
#ifndef __RTW_PWRCTRL_H_

#define __RTW_PWRCTRL_H_

#include <osdep_service.h>
#include <drv_types.h>


#define FW_PWR0		0

#define FW_PWR1		1

#define FW_PWR2		2

#define FW_PWR3		3

#define HW_PWR0		7

#define HW_PWR1		6

#define HW_PWR2		2

#define HW_PWR3		0

#define HW_PWR4		8


#define FW_PWRMSK	0x7


#define XMIT_ALIVE	BIT(0)

#define RECV_ALIVE	BIT(1)

#define CMD_ALIVE	BIT(2)

#define EVT_ALIVE	BIT(3)


enum power_mgnt {
	
PS_MODE_ACTIVE = 0,
	
PS_MODE_MIN,
	
PS_MODE_MAX,
	
PS_MODE_DTIM,
	
PS_MODE_VOIP,
	
PS_MODE_UAPSD_WMM,
	
PS_MODE_UAPSD,
	
PS_MODE_IBSS,
	
PS_MODE_WWLAN,
	
PM_Radio_Off,
	
PM_Card_Disable,
	
PS_MODE_NUM
};

/*
        BIT[2:0] = HW state
        BIT[3] = Protocol PS state,   0: register active state,
                                      1: register sleep state
        BIT[4] = sub-state
*/


#define PS_DPS			BIT(0)

#define PS_LCLK			(PS_DPS)

#define PS_RF_OFF		BIT(1)

#define PS_ALL_ON		BIT(2)

#define PS_ST_ACTIVE		BIT(3)


#define PS_ISR_ENABLE		BIT(4)

#define PS_IMR_ENABLE		BIT(5)

#define PS_ACK			BIT(6)

#define PS_TOGGLE		BIT(7)


#define PS_STATE_MASK		(0x0F)

#define PS_STATE_HW_MASK	(0x07)

#define PS_SEQ_MASK		(0xc0)


#define PS_STATE(x)		(PS_STATE_MASK & (x))

#define PS_STATE_HW(x)		(PS_STATE_HW_MASK & (x))

#define PS_SEQ(x)		(PS_SEQ_MASK & (x))


#define PS_STATE_S0		(PS_DPS)

#define PS_STATE_S1		(PS_LCLK)

#define PS_STATE_S2		(PS_RF_OFF)

#define PS_STATE_S3		(PS_ALL_ON)

#define PS_STATE_S4		((PS_ST_ACTIVE) | (PS_ALL_ON))


#define PS_IS_RF_ON(x)	((x) & (PS_ALL_ON))

#define PS_IS_ACTIVE(x)	((x) & (PS_ST_ACTIVE))

#define CLR_PS_STATE(x)	((x) = ((x) & (0xF0)))


struct reportpwrstate_parm {
	
unsigned char mode;
	
unsigned char state; /* the CPWM value */
	
unsigned short rsvd;
};


static inline void _init_pwrlock(struct semaphore *plock) { sema_init(plock, 1); }

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static inline void _enter_pwrlock(struct semaphore *plock) { _rtw_down_sema(plock); }

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static inline void _exit_pwrlock(struct semaphore *plock) { up(plock); }

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#define LPS_DELAY_TIME 1*HZ /* 1 sec */ #define EXE_PWR_NONE 0x01 #define EXE_PWR_IPS 0x02 #define EXE_PWR_LPS 0x04 /* RF state. */ enum rt_rf_power_state { rf_on, /* RF is on after RFSleep or RFOff */ rf_sleep, /* 802.11 Power Save mode */ rf_off, /* HW/SW Radio OFF or Inactive Power Save */ /* Add the new RF state above this line===== */ rf_max }; /* RF Off Level for IPS or HW/SW radio off */ #define RT_RF_OFF_LEVL_ASPM BIT(0) /* PCI ASPM */ #define RT_RF_OFF_LEVL_CLK_REQ BIT(1) /* PCI clock request */ #define RT_RF_OFF_LEVL_PCI_D3 BIT(2) /* PCI D3 mode */ #define RT_RF_OFF_LEVL_HALT_NIC BIT(3) /* NIC halt, re-init hw param*/ #define RT_RF_OFF_LEVL_FREE_FW BIT(4) /* FW free, re-download the FW*/ #define RT_RF_OFF_LEVL_FW_32K BIT(5) /* FW in 32k */ #define RT_RF_PS_LEVEL_ALWAYS_ASPM BIT(6) /* Always enable ASPM and Clock * Req in initialization. */ #define RT_RF_LPS_DISALBE_2R BIT(30) /* When LPS is on, disable 2R * if no packet is RX or TX. */ #define RT_RF_LPS_LEVEL_ASPM BIT(31) /* LPS with ASPM */ #define RT_IN_PS_LEVEL(ppsc, _PS_FLAG) \ ((ppsc->cur_ps_level & _PS_FLAG) ? true : false) #define RT_CLEAR_PS_LEVEL(ppsc, _PS_FLAG) \ (ppsc->cur_ps_level &= (~(_PS_FLAG))) #define RT_SET_PS_LEVEL(ppsc, _PS_FLAG) \ (ppsc->cur_ps_level |= _PS_FLAG) enum _PS_BBRegBackup_ { PSBBREG_RF0 = 0, PSBBREG_RF1, PSBBREG_RF2, PSBBREG_AFE0, PSBBREG_TOTALCNT }; enum { /* for ips_mode */ IPS_NONE = 0, IPS_NORMAL, IPS_LEVEL_2, }; struct pwrctrl_priv { struct semaphore lock; volatile u8 rpwm; /* requested power state for fw */ volatile u8 cpwm; /* fw current power state. updated when * 1. read from HCPWM 2. driver lowers power level */ volatile u8 tog; /* toggling */ volatile u8 cpwm_tog; /* toggling */ u8 pwr_mode; u8 smart_ps; u8 bcn_ant_mode; u32 alives; struct work_struct cpwm_event; u8 bpower_saving; u8 b_hw_radio_off; u8 reg_rfoff; u8 reg_pdnmode; /* powerdown mode */ u32 rfoff_reason; /* RF OFF Level */ u32 cur_ps_level; u32 reg_rfps_level; uint ips_enter_cnts; uint ips_leave_cnts; u8 ips_mode; u8 ips_mode_req; /* used to accept the mode setting request, * will update to ipsmode later */ uint bips_processing; unsigned long ips_deny_time; /* will deny IPS when system time less than this */ u8 ps_processing; /* temp used to mark whether in rtw_ps_processor */ u8 bLeisurePs; u8 LpsIdleCount; u8 power_mgnt; u8 bFwCurrentInPSMode; u32 DelayLPSLastTimeStamp; u8 btcoex_rfon; s32 pnp_current_pwr_state; u8 pnp_bstop_trx; u8 bInternalAutoSuspend; u8 bInSuspend; u8 bSupportRemoteWakeup; struct timer_list pwr_state_check_timer; int pwr_state_check_interval; u8 pwr_state_check_cnts; int ps_flag; enum rt_rf_power_state rf_pwrstate;/* cur power state */ enum rt_rf_power_state change_rfpwrstate; u8 wepkeymask; u8 bHWPowerdown;/* if support hw power down */ u8 bHWPwrPindetect; u8 bkeepfwalive; u8 brfoffbyhw; unsigned long PS_BBRegBackup[PSBBREG_TOTALCNT]; }; #define rtw_get_ips_mode_req(pwrctrlpriv) \ (pwrctrlpriv)->ips_mode_req #define rtw_ips_mode_req(pwrctrlpriv, ips_mode) \ ((pwrctrlpriv)->ips_mode_req = (ips_mode)) #define RTW_PWR_STATE_CHK_INTERVAL 2000 #define _rtw_set_pwr_state_check_timer(pwrctrlpriv, ms) \ mod_timer(&pwrctrlpriv->pwr_state_check_timer, \ jiffies + msecs_to_jiffies(ms)) #define rtw_set_pwr_state_check_timer(pwrctrl) \ _rtw_set_pwr_state_check_timer((pwrctrl), \ (pwrctrl)->pwr_state_check_interval) void rtw_init_pwrctrl_priv(struct adapter *adapter); void rtw_set_ps_mode(struct adapter *adapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode); void rtw_set_rpwm(struct adapter *adapter, u8 val8); void LeaveAllPowerSaveMode(struct adapter *adapter); void ips_enter(struct adapter *padapter); int ips_leave(struct adapter *padapter); void rtw_ps_processor(struct adapter *padapter); enum rt_rf_power_state RfOnOffDetect(struct adapter *iadapter); s32 LPS_RF_ON_check(struct adapter *adapter, u32 delay_ms); void LPS_Enter(struct adapter *adapter); void LPS_Leave(struct adapter *adapter); int _rtw_pwr_wakeup(struct adapter *adapter, u32 ips_defer_ms, const char *caller); #define rtw_pwr_wakeup(adapter) \ _rtw_pwr_wakeup(adapter, RTW_PWR_STATE_CHK_INTERVAL, __func__) #define rtw_pwr_wakeup_ex(adapter, ips_deffer_ms) \ _rtw_pwr_wakeup(adapter, ips_deffer_ms, __func__) int rtw_pm_set_ips(struct adapter *adapter, u8 mode); int rtw_pm_set_lps(struct adapter *adapter, u8 mode); #endif /* __RTL871X_PWRCTRL_H_ */

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