cregit-Linux how code gets into the kernel

Release 4.11 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;
};


#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 mutex mutex_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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