mtk-lk/platform/mt6735/bq24296.c

#include <platform/mt_typedefs.h>
#include <platform/mt_reg_base.h>
#include <platform/mt_i2c.h>   
#include <platform/mt_pmic.h>
#include <platform/bq24296.h>
#include <printf.h>

#if !defined(CONFIG_POWER_EXT)
#include <platform/upmu_common.h>
#endif

int g_bq24296_log_en=0;

/**********************************************************
  *
  *   [I2C Slave Setting] 
  *
  *********************************************************/
#define bq24296_SLAVE_ADDR_WRITE   0xD6
#define bq24296_SLAVE_ADDR_READ    0xD7
#define PRECC_BATVOL 2800 //preCC 2.8V
/**********************************************************
  *
  *   [Global Variable] 
  *
  *********************************************************/
kal_uint8 bq24296_reg[bq24296_REG_NUM] = {0};

/**********************************************************
  *
  *   [I2C Function For Read/Write bq24296] 
  *
  *********************************************************/
#define BQ24296_I2C_ID	I2C3
static struct mt_i2c_t bq24296_i2c;

kal_uint32 bq24296_write_byte(kal_uint8 addr, kal_uint8 value)
{
    kal_uint32 ret_code = I2C_OK;
    kal_uint8 write_data[2];
    kal_uint16 len;

    write_data[0]= addr;
    write_data[1] = value;

    bq24296_i2c.id = BQ24296_I2C_ID;
    /* Since i2c will left shift 1 bit, we need to set BQ24296 I2C address to >>1 */
    bq24296_i2c.addr = (bq24296_SLAVE_ADDR_WRITE >> 1);
    bq24296_i2c.mode = ST_MODE;
    bq24296_i2c.speed = 100;
    len = 2;

    ret_code = i2c_write(&bq24296_i2c, write_data, len);

    if(I2C_OK != ret_code)
        dprintf(INFO, "%s: i2c_write: ret_code: %d\n", __func__, ret_code);

    return ret_code;
}

kal_uint32 bq24296_read_byte (kal_uint8 addr, kal_uint8 *dataBuffer) 
{
    kal_uint32 ret_code = I2C_OK;
    kal_uint16 len;
    *dataBuffer = addr;

    bq24296_i2c.id = BQ24296_I2C_ID;
    /* Since i2c will left shift 1 bit, we need to set BQ24296 I2C address to >>1 */
    bq24296_i2c.addr = (bq24296_SLAVE_ADDR_READ >> 1);
    bq24296_i2c.mode = ST_MODE;
    bq24296_i2c.speed = 100;
    len = 1;

    ret_code = i2c_write_read(&bq24296_i2c, dataBuffer, len, len);

    if(I2C_OK != ret_code)
        dprintf(INFO, "%s: i2c_read: ret_code: %d\n", __func__, ret_code);

    return ret_code;
}
/**********************************************************
  *
  *   [Read / Write Function] 
  *
  *********************************************************/
kal_uint32 bq24296_read_interface (kal_uint8 RegNum, kal_uint8 *val, kal_uint8 MASK, kal_uint8 SHIFT)
{
    kal_uint8 bq24296_reg = 0;
    int ret = 0;

    dprintf(INFO, "--------------------------------------------------LK\n");

    ret = bq24296_read_byte(RegNum, &bq24296_reg);
    dprintf(INFO, "[bq24296_read_interface] Reg[%x]=0x%x\n", RegNum, bq24296_reg);

    bq24296_reg &= (MASK << SHIFT);
    *val = (bq24296_reg >> SHIFT);	  

    if(g_bq24296_log_en>1)		  
	    dprintf(INFO, "%d\n", ret);

    return ret;
}

kal_uint32 bq24296_config_interface (kal_uint8 RegNum, kal_uint8 val, kal_uint8 MASK, kal_uint8 SHIFT)
{
    kal_uint8 bq24296_reg = 0;
    kal_uint32 ret = 0;

    dprintf(INFO, "--------------------------------------------------LK\n");

    ret = bq24296_read_byte(RegNum, &bq24296_reg);

    dprintf(INFO, "[bq24296_config_interface] Reg[%x]=0x%x\n", RegNum, bq24296_reg);

    bq24296_reg &= ~(MASK << SHIFT);
    bq24296_reg |= (val << SHIFT);

    ret = bq24296_write_byte(RegNum, bq24296_reg);

    dprintf(INFO, "[bq24296_config_interface] write Reg[%x]=0x%x\n", RegNum, bq24296_reg);

    // Check
    //bq24296_read_byte(RegNum, &bq24296_reg);
    //dprintf(INFO, "[bq24296_config_interface] Check Reg[%x]=0x%x\n", RegNum, bq24296_reg);

    if(g_bq24296_log_en>1)        
        dprintf(INFO, "%d\n", ret);

    return ret;
}

/**********************************************************
  *
  *   [Internal Function] 
  *
  *********************************************************/
//CON0----------------------------------------------------

void bq24296_set_en_hiz(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON0), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON0_EN_HIZ_MASK),
                                    (kal_uint8)(CON0_EN_HIZ_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);	
}

void bq24296_set_vindpm(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON0), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON0_VINDPM_MASK),
                                    (kal_uint8)(CON0_VINDPM_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

void bq24296_set_iinlim(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON0), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON0_IINLIM_MASK),
                                    (kal_uint8)(CON0_IINLIM_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

//CON1----------------------------------------------------

void bq24296_set_reg_rst(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON1), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON1_REG_RST_MASK),
                                    (kal_uint8)(CON1_REG_RST_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

void bq24296_set_wdt_rst(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON1), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON1_WDT_RST_MASK),
                                    (kal_uint8)(CON1_WDT_RST_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

void bq24296_set_chg_config(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON1), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON1_CHG_CONFIG_MASK),
                                    (kal_uint8)(CON1_CHG_CONFIG_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

void bq24296_set_sys_min(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON1), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON1_SYS_MIN_MASK),
                                    (kal_uint8)(CON1_SYS_MIN_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

void bq24296_set_boost_lim(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON1), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON1_BOOST_LIM_MASK),
                                    (kal_uint8)(CON1_BOOST_LIM_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

//CON2----------------------------------------------------

void bq24296_set_ichg(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON2), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON2_ICHG_MASK),
                                    (kal_uint8)(CON2_ICHG_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

//CON3----------------------------------------------------

void bq24296_set_iprechg(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON3), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON3_IPRECHG_MASK),
                                    (kal_uint8)(CON3_IPRECHG_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

void bq24296_set_iterm(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON3), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON3_ITERM_MASK),
                                    (kal_uint8)(CON3_ITERM_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

//CON4----------------------------------------------------

void bq24296_set_vreg(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON4), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON4_VREG_MASK),
                                    (kal_uint8)(CON4_VREG_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

void bq24296_set_batlowv(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON4), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON4_BATLOWV_MASK),
                                    (kal_uint8)(CON4_BATLOWV_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

void bq24296_set_vrechg(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON4), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON4_VRECHG_MASK),
                                    (kal_uint8)(CON4_VRECHG_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

//CON5----------------------------------------------------

void bq24296_set_en_term(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON5), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON5_EN_TERM_MASK),
                                    (kal_uint8)(CON5_EN_TERM_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

void bq24296_set_watchdog(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON5), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON5_WATCHDOG_MASK),
                                    (kal_uint8)(CON5_WATCHDOG_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

void bq24296_set_en_timer(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON5), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON5_EN_TIMER_MASK),
                                    (kal_uint8)(CON5_EN_TIMER_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

void bq24296_set_chg_timer(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON5), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON5_CHG_TIMER_MASK),
                                    (kal_uint8)(CON5_CHG_TIMER_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

//CON6----------------------------------------------------

void bq24296_set_treg(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON6), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON6_TREG_MASK),
                                    (kal_uint8)(CON6_TREG_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

//CON7----------------------------------------------------

void bq24296_set_tmr2x_en(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON7), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON7_TMR2X_EN_MASK),
                                    (kal_uint8)(CON7_TMR2X_EN_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

void bq24296_set_batfet_disable(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON7), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON7_BATFET_Disable_MASK),
                                    (kal_uint8)(CON7_BATFET_Disable_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

void bq24296_set_int_mask(kal_uint32 val)
{
    kal_uint32 ret=0;    

    ret=bq24296_config_interface(   (kal_uint8)(bq24296_CON7), 
                                    (kal_uint8)(val),
                                    (kal_uint8)(CON7_INT_MASK_MASK),
                                    (kal_uint8)(CON7_INT_MASK_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);		
}

//CON8----------------------------------------------------

kal_uint32 bq24296_get_system_status(void)
{
    kal_uint32 ret=0;
    kal_uint8 val=0;

    ret=bq24296_read_interface(     (kal_uint8)(bq24296_CON8), 
                                    (&val),
                                    (kal_uint8)(0xFF),
                                    (kal_uint8)(0x0)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);	
	
    return val;
}

kal_uint32 bq24296_get_vbus_stat(void)
{
    kal_uint32 ret=0;
    kal_uint8 val=0;

    ret=bq24296_read_interface(     (kal_uint8)(bq24296_CON8), 
                                    (&val),
                                    (kal_uint8)(CON8_VBUS_STAT_MASK),
                                    (kal_uint8)(CON8_VBUS_STAT_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);	
	
    return val;
}

kal_uint32 bq24296_get_chrg_stat(void)
{
    kal_uint32 ret=0;
    kal_uint8 val=0;

    ret=bq24296_read_interface(     (kal_uint8)(bq24296_CON8), 
                                    (&val),
                                    (kal_uint8)(CON8_CHRG_STAT_MASK),
                                    (kal_uint8)(CON8_CHRG_STAT_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);	
	
    return val;
}

kal_uint32 bq24296_get_vsys_stat(void)
{
    kal_uint32 ret=0;
    kal_uint8 val=0;

    ret=bq24296_read_interface(     (kal_uint8)(bq24296_CON8), 
                                    (&val),
                                    (kal_uint8)(CON8_VSYS_STAT_MASK),
                                    (kal_uint8)(CON8_VSYS_STAT_SHIFT)
                                    );
    if(g_bq24296_log_en>1)        
        dprintf(CRITICAL, "%d\n", ret);	
	
    return val;
}

/**********************************************************
  *
  *   [Internal Function] 
  *
  *********************************************************/
void bq24296_dump_register(void)
{
    int i=0;

    dprintf(CRITICAL, "bq24296_dump_register\r\n");
    for (i=0;i<bq24296_REG_NUM;i++)
    {
        bq24296_read_byte(i, &bq24296_reg[i]);
        dprintf(INFO, "[0x%x]=0x%x\r\n", i, bq24296_reg[i]);		  
    }
}

void bq24296_hw_init(void)
{
    //pull CE low
    #if defined(GPIO_CHR_CE_PIN)
    mt_set_gpio_mode(GPIO_CHR_CE_PIN,GPIO_MODE_GPIO);  
    mt_set_gpio_dir(GPIO_CHR_CE_PIN,GPIO_DIR_OUT);
    mt_set_gpio_out(GPIO_CHR_CE_PIN,GPIO_OUT_ZERO);    
    #endif

    bq24296_set_en_hiz(0x0);
    bq24296_set_vindpm(0xA); //VIN DPM check 4.68V
    bq24296_set_reg_rst(0x0);
	bq24296_set_wdt_rst(0x1); //Kick watchdog

    bq24296_set_sys_min(0x5); //Minimum system voltage 3.5V		
	bq24296_set_iprechg(0x3); //Precharge current 512mA
	bq24296_set_iterm(0x0); //Termination current 128mA

    bq24296_set_batlowv(0x1); //BATLOWV 3.0V
    bq24296_set_vrechg(0x0); //VRECHG 0.1V (4.108V)
    bq24296_set_en_term(0x1); //Enable termination
    bq24296_set_watchdog(0x1); //WDT 40s
    bq24296_set_en_timer(0x0); //Disable charge timer
    bq24296_set_int_mask(0x0); //Disable fault interrupt
}

static CHARGER_TYPE g_chr_type_num = CHARGER_UNKNOWN;
int hw_charging_get_charger_type(void);

void bq24296_charging_enable(kal_uint32 bEnable)
{
    int temp_CC_value = 0;
    kal_int32 bat_val = 0;

    if(CHARGER_UNKNOWN == g_chr_type_num && KAL_TRUE == upmu_is_chr_det())
    {
        hw_charging_get_charger_type();
        dprintf(CRITICAL, "[BATTERY:bq24296] charger type: %d\n", g_chr_type_num);
    }

    bat_val = get_i_sense_volt(1);
    if (g_chr_type_num == STANDARD_CHARGER)
    {
        temp_CC_value = 2000;
        bq24296_set_iinlim(0x6); //IN current limit at 2A
        if(bat_val < PRECC_BATVOL)
            bq24296_set_ichg(0x0);  //Pre-Charging Current Limit at 500ma
        else
            bq24296_set_ichg(0x17);  //Fast Charging Current Limit at 2A
    }
    else if (g_chr_type_num == STANDARD_HOST \
        || g_chr_type_num == CHARGING_HOST \
        || g_chr_type_num == NONSTANDARD_CHARGER)
    {
        temp_CC_value = 500;
        bq24296_set_iinlim(0x2); //IN current limit at 500mA
        bq24296_set_ichg(0);  //Fast Charging Current Limit at 500mA
    }
    else
    {
        dprintf(INFO, "[BATTERY:bq24296] Unknown charger type\n");
        temp_CC_value = 500;
        bq24296_set_iinlim(0x2); //IN current limit at 500mA
        bq24296_set_ichg(0);  //Fast Charging Current Limit at 500mA
    }

    bq24296_set_en_hiz(0x0);	        	

    if(KAL_TRUE == bEnable)
        bq24296_set_chg_config(0x1); // charger enable
    else
        bq24296_set_chg_config(0x0); // charger disable

    bq24296_set_wdt_rst(0x1);

    dprintf(INFO, "[BATTERY:bq24296] bq24296_set_ac_current(), CC value(%dmA) \r\n", temp_CC_value);
    dprintf(INFO, "[BATTERY:bq24296] charger enable/disable %d !\r\n", bEnable);
}

#if defined(CONFIG_POWER_EXT)

int hw_charging_get_charger_type(void)
{
    g_chr_type_num = STANDARD_HOST;

    return STANDARD_HOST;
}

#else

extern void Charger_Detect_Init(void);
extern void Charger_Detect_Release(void);
extern void mdelay (unsigned long msec);
extern kal_uint16 bc11_set_register_value(PMU_FLAGS_LIST_ENUM flagname,kal_uint32 val);

static void hw_bc11_dump_register(void)
{
/*
	kal_uint32 reg_val = 0;
	kal_uint32 reg_num = CHR_CON18;
	kal_uint32 i = 0;

	for(i=reg_num ; i<=CHR_CON19 ; i+=2)
	{
		reg_val = upmu_get_reg_value(i);
		dprintf(INFO, "Chr Reg[0x%x]=0x%x \r\n", i, reg_val);
	}	
*/
}

static void hw_bc11_init(void)
{
    mdelay(200);
    Charger_Detect_Init();

    //RG_bc11_BIAS_EN=1
    bc11_set_register_value(PMIC_RG_BC11_BIAS_EN,1);
    //RG_bc11_VSRC_EN[1:0]=00
    bc11_set_register_value(PMIC_RG_BC11_VSRC_EN,0);
    //RG_bc11_VREF_VTH = [1:0]=00
    bc11_set_register_value(PMIC_RG_BC11_VREF_VTH,0);
    //RG_bc11_CMP_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_CMP_EN,0);
    //RG_bc11_IPU_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_IPU_EN,0);
    //RG_bc11_IPD_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_IPD_EN,0);
    //bc11_RST=1
    bc11_set_register_value(PMIC_RG_BC11_RST,1);
    //bc11_BB_CTRL=1
    bc11_set_register_value(PMIC_RG_BC11_BB_CTRL,1);

    mdelay(50);

    if(g_bq24296_log_en>1)
    {
        dprintf(INFO, "hw_bc11_init() \r\n");
        hw_bc11_dump_register();
    }	
}
 
static U32 hw_bc11_DCD(void)
{
    U32 wChargerAvail = 0;

    //RG_bc11_IPU_EN[1.0] = 10
    bc11_set_register_value(PMIC_RG_BC11_IPU_EN,0x2);  
    //RG_bc11_IPD_EN[1.0] = 01
    bc11_set_register_value(PMIC_RG_BC11_IPD_EN,0x1);
    //RG_bc11_VREF_VTH = [1:0]=01
    bc11_set_register_value(PMIC_RG_BC11_VREF_VTH,0x1);
    //RG_bc11_CMP_EN[1.0] = 10
    bc11_set_register_value(PMIC_RG_BC11_CMP_EN,0x2);

    mdelay(80);

    wChargerAvail = bc11_get_register_value(PMIC_RGS_BC11_CMP_OUT);

    if(g_bq24296_log_en>1)
    {
        dprintf(INFO, "hw_bc11_DCD() \r\n");
        hw_bc11_dump_register();
    }

    //RG_bc11_IPU_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_IPU_EN,0x0);
    //RG_bc11_IPD_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_IPD_EN,0x0);
    //RG_bc11_CMP_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_CMP_EN,0x0);
    //RG_bc11_VREF_VTH = [1:0]=00
    bc11_set_register_value(PMIC_RG_BC11_VREF_VTH,0x0);

    return wChargerAvail;
}

static U32 hw_bc11_stepA1(void)
{
    U32 wChargerAvail = 0;
      
    //RG_bc11_IPD_EN[1.0] = 01
    bc11_set_register_value(PMIC_RG_BC11_IPD_EN,0x1);
    //RG_bc11_VREF_VTH = [1:0]=00
    bc11_set_register_value(PMIC_RG_BC11_VREF_VTH,0x0);
    //RG_bc11_CMP_EN[1.0] = 01
    bc11_set_register_value(PMIC_RG_BC11_CMP_EN,0x1);

    mdelay(80);

    wChargerAvail = bc11_get_register_value(PMIC_RGS_BC11_CMP_OUT);

    if(g_bq24296_log_en>1)
    {
    	dprintf(INFO, "hw_bc11_stepA1() \r\n");
    	hw_bc11_dump_register();
    }

    //RG_bc11_IPD_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_IPD_EN,0x0);
    //RG_bc11_CMP_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_CMP_EN,0x0);

    return  wChargerAvail;
}


static U32 hw_bc11_stepA2(void)
{
    U32 wChargerAvail = 0;

    //RG_bc11_VSRC_EN[1.0] = 10 
    bc11_set_register_value(PMIC_RG_BC11_VSRC_EN,0x2);
    //RG_bc11_IPD_EN[1:0] = 01
    bc11_set_register_value(PMIC_RG_BC11_IPD_EN,0x1);
    //RG_bc11_VREF_VTH = [1:0]=00
    bc11_set_register_value(PMIC_RG_BC11_VREF_VTH,0x0);
    //RG_bc11_CMP_EN[1.0] = 01
    bc11_set_register_value(PMIC_RG_BC11_CMP_EN,0x1);

    mdelay(80);

    wChargerAvail = bc11_get_register_value(PMIC_RGS_BC11_CMP_OUT);

    if(g_bq24296_log_en)
    {
    	dprintf(INFO, "hw_bc11_stepB1() \r\n");
    	hw_bc11_dump_register();
    }

    //RG_bc11_VSRC_EN[1:0]=00
    bc11_set_register_value(PMIC_RG_BC11_VSRC_EN,0x0);
    //RG_bc11_IPD_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_IPD_EN,0x0);
    //RG_bc11_CMP_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_CMP_EN,0x0);

    return  wChargerAvail;
}


static U32 hw_bc11_stepB2(void)
{
    U32 wChargerAvail = 0;
      
    //RG_bc11_IPU_EN[1:0]=10
    bc11_set_register_value(PMIC_RG_BC11_IPU_EN,0x2); 
    //RG_bc11_VREF_VTH = [1:0]=01
    bc11_set_register_value(PMIC_RG_BC11_VREF_VTH,0x1);
    //RG_bc11_CMP_EN[1.0] = 01
    bc11_set_register_value(PMIC_RG_BC11_CMP_EN,0x1);

    mdelay(80);

    wChargerAvail = bc11_get_register_value(PMIC_RGS_BC11_CMP_OUT);

    if(g_bq24296_log_en)
    {
    	dprintf(INFO, "hw_bc11_stepB2() \r\n");
    	hw_bc11_dump_register();
    }

    if (!wChargerAvail)
    {
        //RG_bc11_VSRC_EN[1.0] = 10 
        //mt6325_upmu_set_rg_bc11_vsrc_en(0x2);
        bc11_set_register_value(PMIC_RG_BC11_VSRC_EN,0x2); 
    }
    //RG_bc11_IPU_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_IPU_EN,0x0); 
    //RG_bc11_CMP_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_CMP_EN,0x0); 
    //RG_bc11_VREF_VTH = [1:0]=00
    bc11_set_register_value(PMIC_RG_BC11_VREF_VTH,0x0); 

    return  wChargerAvail;
}


static void hw_bc11_done(void)
{
    //RG_bc11_VSRC_EN[1:0]=00
    bc11_set_register_value(PMIC_RG_BC11_VSRC_EN,0x0);
    //RG_bc11_VREF_VTH = [1:0]=0
    bc11_set_register_value(PMIC_RG_BC11_VREF_VTH,0x0);
    //RG_bc11_CMP_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_CMP_EN,0x0);
    //RG_bc11_IPU_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_IPU_EN,0x0);
    //RG_bc11_IPD_EN[1.0] = 00
    bc11_set_register_value(PMIC_RG_BC11_IPD_EN,0x0);
    //RG_bc11_BIAS_EN=0
    bc11_set_register_value(PMIC_RG_BC11_BIAS_EN,0x0);

    Charger_Detect_Release();

    if(g_bq24296_log_en>1)
    {
    	dprintf(INFO, "hw_bc11_done() \r\n");
    	hw_bc11_dump_register();
    }
}

int hw_charging_get_charger_type(void)
{
    if(CHARGER_UNKNOWN != g_chr_type_num)
        return g_chr_type_num;
#if 0
	  return STANDARD_HOST;
#else
    CHARGER_TYPE CHR_Type_num = CHARGER_UNKNOWN;
    
    /********* Step initial  ***************/         
    hw_bc11_init();
 
    /********* Step DCD ***************/  
    if(1 == hw_bc11_DCD())
    {
         /********* Step A1 ***************/
         if(1 == hw_bc11_stepA1())
         {             
             CHR_Type_num = APPLE_2_1A_CHARGER;
             dprintf(INFO, "step A1 : Apple 2.1A CHARGER!\r\n");
         }
         else
         {
             CHR_Type_num = NONSTANDARD_CHARGER;
             dprintf(INFO, "step A1 : Non STANDARD CHARGER!\r\n");
         }
    }
    else
    {
         /********* Step A2 ***************/
         if(1 == hw_bc11_stepA2())
         {
             /********* Step B2 ***************/
             if(1 == hw_bc11_stepB2())
             {
                 CHR_Type_num = STANDARD_CHARGER;
                 dprintf(INFO, "step B2 : STANDARD CHARGER!\r\n");
             }
             else
             {
                 CHR_Type_num = CHARGING_HOST;
                 dprintf(INFO, "step B2 :  Charging Host!\r\n");
             }
         }
         else
         {
             CHR_Type_num = STANDARD_HOST;
             dprintf(INFO, "step A2 : Standard USB Host!\r\n");
         }
    }
 
    /********* Finally setting *******************************/
    hw_bc11_done();

    g_chr_type_num = CHR_Type_num;

    return g_chr_type_num;
#endif    
}
#endif