headset_powermanager.h

bc5_stereo：bluetooth stereo Headset CODE 支持A2DP HSP 和 HSP 。可作为车载免提。BlueLab 2007环境下编译

/****************************************************************************
Copyright (C) Cambridge Silicon Radio Ltd. 2004-2007

FILE NAME
    headset_configmanager.h
    
DESCRIPTION
    Configuration manager for the headset - resoponsible for extracting user information out of the 
    PSKEYs and initialising the configurable nature of the headset components
    
*/
#ifndef HEADSET_POWER_MANAGER_H
#define HEADSET_POWER_MANAGER_H

#include <csrtypes.h>
#include <battery.h>


/* Definition of the battery monitoring configuration */
typedef struct
{
    uint16 divisor_ratio;
 
    unsigned low_threshold:8 ;
    unsigned shutdown_threshold:8 ;  
 
    unsigned high_threshold:8 ;
    unsigned monitoring_period:8 ;
    
}battery_config_type;

/* Definition of the power configuration */
typedef struct
{
	battery_config_type			battery;
} power_config_type;

/* Task to receive AIO readings */
typedef struct
{
	TaskData				task;
	battery_reading_source	source;
	BatteryState			state;
	uint16					current_reading;
} aioTask;

/* Charger state */
typedef enum
{
	disconnected,
	trickle_charge,
	fast_charge,
	charge_error
} charging_state_type;

/* Charger control */
typedef struct
{
	charging_state_type			state;
	TaskData					task;
} charger_state;

/* Definition of the power state */
typedef struct
{
	/* Configuration */
	power_config_type			config;
	/* Vbat */
	aioTask						vbat_task;
	/* Vth */
	/*aioTask						vth_task;*/
	/* Charger state */
	charger_state				charger;

    unsigned initial_reading:1;
} power_type;


/****************************************************************************
NAME    
    powerManagerInit
    
DESCRIPTION
  	Initialise power management
    
RETURNS
    void
*/
power_type* powerManagerInit(void);

/****************************************************************************
NAME    
    powerManagerConfig
    
DESCRIPTION
  	Configure power management
    
RETURNS
    void
*/
bool powerManagerConfig(power_type* power, const power_config_type* config);


/****************************************************************************
NAME    
    powerManagerChargerConnected
    
DESCRIPTION
  	This function is called when the charger is plugged into the headset
    
RETURNS
    void
*/
void powerManagerChargerConnected(power_type* power);


/****************************************************************************
NAME    
    powerManagerChargerDisconnected
    
DESCRIPTION
  	This function is called when the charger is unplugged from the headset
    
RETURNS
    void
*/
void powerManagerChargerDisconnected(power_type* power);


#endif