Beispiel #1
0
static int pmic_get_charger_coulomb(int *coulomb)
{
	int ret;
	unsigned int value;
	int calibration;
	unsigned int time_diff_msec;

	ret = pmic_read_reg(REG_ACC0, &value, BITFMASK(ACC_CCOUT));
	if (ret != 0)
		return -1;
	value = BITFEXT(value, ACC_CCOUT);
	pr_debug("counter value = %x\n", value);
	*coulomb = ((s16)((u16)value)) * ACC_COULOMB_PER_LSB;

	if (abs(*coulomb) >= ACC_COULOMB_PER_LSB) {
			/* calibrate */
		time_diff_msec = jiffies_to_msecs(jiffies);
		time_diff_msec =
			(time_diff_msec > coulomb_counter_start_time_msecs) ?
			(time_diff_msec - coulomb_counter_start_time_msecs) :
			(0xffffffff - coulomb_counter_start_time_msecs
			+ time_diff_msec);
		calibration = coulomb_counter_calibration * (int)time_diff_msec
			/ (ACC_ONEC_VALUE * ACC_CALIBRATION_DURATION_MSECS);
		*coulomb -= calibration;
	}

	return 0;
}
Beispiel #2
0
static int pmic_calibrate_coulomb_counter(void)
{
	int ret;
	unsigned int value;

	/* set scaler */
	CHECK_ERROR(pmic_write_reg(REG_ACC1,
		0x1, BITFMASK(ACC1_ONEC)));

	CHECK_ERROR(pmic_write_reg(
		REG_ACC0, ACC_CALIBRATION, ACC_CONTROL_BIT_MASK));
	msleep(ACC_CALIBRATION_DURATION_MSECS);

	ret = pmic_read_reg(REG_ACC0, &value, BITFMASK(ACC_CCOUT));
	if (ret != 0)
		return -1;
	value = BITFEXT(value, ACC_CCOUT);
	pr_debug("calibrate value = %x\n", value);
	coulomb_counter_calibration = (int)((s16)((u16) value));
	pr_debug("coulomb_counter_calibration = %d\n",
		coulomb_counter_calibration);

	return 0;

}
Beispiel #3
0
static int mc34708_vdac_get_voltage(struct regulator_dev *reg)
{
	unsigned int register_val = 0;
	int voltage = 0, mV = 0;

	CHECK_ERROR(pmic_read_reg(MC34708_REG_REGULATOR_SETTING0,
				  &register_val, PMIC_ALL_BITS));
	voltage = BITFEXT(register_val, VDAC);

	switch (voltage) {
	case VDAC_2_5V:
		mV = 2500;
		break;
	case VDAC_2_6V:
		mV = 2600;
		break;
	case VDAC_2_7V:
		mV = 2700;
		break;
	case VDAC_2_775V:
		mV = 2775;
		break;
	default:
		return -EINVAL;
	}

	return mV * 1000;
}
Beispiel #4
0
static int mc34708_vpll_get_voltage(struct regulator_dev *reg)
{
	unsigned int register_val = 0;
	int voltage = 0, mV = 0;

	CHECK_ERROR(pmic_read_reg(MC34708_REG_REGULATOR_SETTING0,
				  &register_val, PMIC_ALL_BITS));
	voltage = BITFEXT(register_val, VPLL);

	switch (voltage) {
	case VPLL_1_2V:
		mV = 1200;
		break;
	case VPLL_1_25V:
		mV = 1250;
		break;
	case VPLL_1_5V:
		mV = 1500;
		break;
	case VPLL_1_8V:
		mV = 1800;
		break;
	default:
		return -EINVAL;
	}

	return mV * 1000;
}
Beispiel #5
0
/*!
 * This function is used to retrive the charger setting.
 *
 * @param      chgr        Charger as defined in \b t_batt_charger.
 * @param      c_voltage   Output parameter for charging voltage setting.
 * @param      c_current   Output parameter for charging current setting.
 *
 * @return     This function returns PMIC_SUCCESS if successful.
 */
PMIC_STATUS pmic_batt_get_charger_setting(t_batt_charger chgr,
					  unsigned char *c_voltage,
					  unsigned char *c_current)
{
	unsigned int val, reg;

	reg = 0;

	if (suspend_flag == 1)
		return PMIC_ERROR;

	switch (chgr) {
	case BATT_MAIN_CHGR:
	case BATT_TRCKLE_CHGR:
		reg = REG_CHARGER;
		break;
	case BATT_CELL_CHGR:
		reg = REG_POWER_CONTROL_0;
		break;
	default:
		return PMIC_PARAMETER_ERROR;
	}

	CHECK_ERROR(pmic_read_reg(reg, &val, PMIC_ALL_BITS));

	switch (chgr) {
	case BATT_MAIN_CHGR:
		*c_voltage = BITFEXT(val, MC13783_BATT_DAC_V_DAC);;
		*c_current = BITFEXT(val, MC13783_BATT_DAC_DAC);
		break;

	case BATT_CELL_CHGR:
		*c_voltage = BITFEXT(val, MC13783_BATT_DAC_V_COIN);
		*c_current = 0;
		break;

	case BATT_TRCKLE_CHGR:
		*c_voltage = 0;
		*c_current = BITFEXT(val, MC13783_BATT_DAC_TRCKLE);
		break;

	default:
		return PMIC_PARAMETER_ERROR;
	}

	return PMIC_SUCCESS;
}
static int max17135_vcom_get_voltage(struct regulator_dev *reg)
{
	struct max17135 *max17135 = rdev_get_drvdata(reg);
	unsigned int reg_val;

	max17135_reg_read(REG_MAX17135_DVR, &reg_val);
	return vcom_rs_to_uV(BITFEXT(reg_val, DVR), max17135->pass_num-1);
}
Beispiel #7
0
static void mc13892_battery_update_status(struct mc13892_dev_info *di)
{
#ifndef CONFIG_MACH_MX51_ERDOS
	unsigned int value;
#endif /* CONFIG_MACH_MX51_ERDOS */
	int retval;
	int old_battery_status = di->battery_status;

	if (di->battery_status == POWER_SUPPLY_STATUS_UNKNOWN)
		di->full_counter = 0;

	if (di->charger_online) {
#ifdef CONFIG_MACH_MX51_ERDOS
		retval = gpio_charge_status();
		switch (retval) {
		case 0x1: /* STAT2: charged */
			di->battery_status = POWER_SUPPLY_STATUS_FULL;
			break;
		case 0x2: /* STAT1: now charging */
			di->battery_status = POWER_SUPPLY_STATUS_CHARGING;
			break;
		default:
			di->battery_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
			break;
 		}
		if (di->battery_status == POWER_SUPPLY_STATUS_FULL)
			di->full_counter++;
		else
			di->full_counter = 0;
#else
		retval = pmic_read_reg(REG_INT_SENSE0,
					&value, BITFMASK(BIT_CHG_CURRS));

		if (retval == 0) {
			value = BITFEXT(value, BIT_CHG_CURRS);
			if (value)
				di->battery_status =
					POWER_SUPPLY_STATUS_CHARGING;
			else
				di->battery_status =
					POWER_SUPPLY_STATUS_NOT_CHARGING;
		}
		if (di->battery_status == POWER_SUPPLY_STATUS_NOT_CHARGING)
			di->full_counter++;
		else
			di->full_counter = 0;
#endif /* CONFIG_MACH_MX51_ERDOS */
	} else {
		di->battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
		di->full_counter = 0;
	}

	dev_dbg(di->bat.dev, "bat status: %d\n",
		di->battery_status);

	if (di->battery_status != old_battery_status)
		power_supply_changed(&di->bat);
}
Beispiel #8
0
static int __devinit is_chip_onboard(struct i2c_client *client)
{
	unsigned int ret = 0;

	/*bind the right device to the driver */
	if (pmic_i2c_24bit_read(client, REG_IDENTIFICATION, &ret) == -1)
		return -1;
	if ((MC13892_GEN_ID_VALUE != BITFEXT(ret, MC13892_GENERATION_ID)) &&
	   (MC34708_GEN_ID_VALUE != BITFEXT(ret, MC34708_GENERATION_ID))) {
		/*compare the address value */
		dev_err(&client->dev,
			"read generation ID 0x%x is not equal to 0x%x!\n",
			BITFEXT(ret, MC13892_GENERATION_ID),
			MC13892_GEN_ID_VALUE);
		return -1;
	}

	return 0;
}
Beispiel #9
0
/*!
 * This function get the real time clock of PMIC
 *
 * @param        pmic_time  	return value of date and time
 *
 * @return       This function returns PMIC_SUCCESS if successful.
 */
PMIC_STATUS pmic_rtc_get_time(struct timeval *pmic_time)
{
	unsigned int tod_reg_val = 0;
	unsigned int day_reg_val = 0;
	unsigned int mask, value;

	mask = BITFMASK(MC13783_RTCTIME_TIME);
	CHECK_ERROR(pmic_read_reg(REG_RTC_TIME, &value, mask));
	tod_reg_val = BITFEXT(value, MC13783_RTCTIME_TIME);

	mask = BITFMASK(MC13783_RTCDAY_DAY);
	CHECK_ERROR(pmic_read_reg(REG_RTC_DAY, &value, mask));
	day_reg_val = BITFEXT(value, MC13783_RTCDAY_DAY);

	pmic_time->tv_sec = (unsigned long)((unsigned long)(tod_reg_val &
							    0x0001FFFF) +
					    (unsigned long)(day_reg_val *
							    86400));
	return PMIC_SUCCESS;
}
Beispiel #10
0
static int mc34708_vgen1_get_voltage(struct regulator_dev *reg)
{
    unsigned int register_val = 0;
    int voltage = 0, mV = 0;

    CHECK_ERROR(pmic_read_reg(MC34708_REG_REGULATOR_SETTING0,
                              &register_val, PMIC_ALL_BITS));
    voltage = BITFEXT(register_val, VGEN1);
    mV = bit_value_to_mv(voltage, VGEN1_MIN_MV, VGEN1_STEP_MV);

    return mV * 1000;
}
Beispiel #11
0
//static int pmic_get_chg_value(unsigned int *value)
//{
//	t_channel channel;
//	unsigned short result[8], max1 = 0, min1 = 0, max2 = 0, min2 = 0, i;
//	unsigned int average = 0, average1 = 0, average2 = 0;
//
//	channel = CHARGE_CURRENT;
//	CHECK_ERROR(pmic_adc_convert(channel, result));
//
//
//	for (i = 0; i < 8; i++) {
//		if ((result[i] & 0x200) != 0) {
//			result[i] = 0x400 - result[i];
//			average2 += result[i];
//			if ((max2 == 0) || (max2 < result[i]))
//				max2 = result[i];
//			if ((min2 == 0) || (min2 > result[i]))
//				min2 = result[i];
//		} else {
//			average1 += result[i];
//			if ((max1 == 0) || (max1 < result[i]))
//				max1 = result[i];
//			if ((min1 == 0) || (min1 > result[i]))
//				min1 = result[i];
//		}
//	}
//
//	if (max1 != 0) {
//		average1 -= max1;
//		if (max2 != 0)
//			average2 -= max2;
//		else
//			average1 -= min1;
//	} else
//		average2 -= max2 + min2;
//
//	if (average1 >= average2) {
//		average = (average1 - average2) / 6;
//		*value = average;
//	} else {
//		average = (average2 - average1) / 6;
//		*value = ((~average) + 1) & 0x3FF;
//	}
//
//	return 0;
//}
//
static int get_charger_state(void)
{
       unsigned int value = 0;
       int charger =0;
       int retval=-1;

	retval = pmic_read_reg(REG_INT_SENSE0, &value, BITFMASK(BIT_CHG_DETS));
	if(retval == 0){
	     charger = BITFEXT(value, BIT_CHG_DETS);
	}
	bConnectState  = charger;
      return charger;
}
Beispiel #12
0
static int pmic_get_charger_coulomb_raw(int *coulomb)
{
	int ret;
	unsigned int value;

	ret = pmic_read_reg(REG_ACC0, &value, BITFMASK(ACC_CCOUT));
	if (ret != 0)
		return -1;
	value = BITFEXT(value, ACC_CCOUT);
	//printk("counter value = %x\n", value);
	*coulomb = ((s16)((u16)value)) * ACC_COULOMB_PER_LSB;
	return 0;
}
Beispiel #13
0
static int mxc_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
{
	unsigned int tod_reg_val = 0;
	unsigned int day_reg_val = 0;
	unsigned int mask, value;
	unsigned long time;

	mask = BITFMASK(RTCALARM_TIME);
	CHECK_ERROR(pmic_read_reg(REG_RTC_ALARM, &value, mask));
	tod_reg_val = BITFEXT(value, RTCALARM_TIME);

	mask = BITFMASK(RTCALARM_DAY);
	CHECK_ERROR(pmic_read_reg(REG_RTC_DAY_ALARM, &value, mask));
	day_reg_val = BITFEXT(value, RTCALARM_DAY);

	time = (unsigned long)((unsigned long)(tod_reg_val &
					       0x0001FFFF) +
			       (unsigned long)(day_reg_val * 86400));
	rtc_time_to_tm(time, &(alrm->time));

	return 0;
}
Beispiel #14
0
static int mc13892_charger_update_status(struct mc13892_dev_info *di)
{
	int ret;
	unsigned int value;
	int online;

	ret = pmic_read_reg(REG_INT_SENSE0, &value, BITFMASK(BIT_CHG_DETS));

	if (ret == 0) {
		online = BITFEXT(value, BIT_CHG_DETS);
		if (online != di->charger_online) {
			di->charger_online = online;
			dev_info(di->charger.dev, "charger status: %s\n",
				online ? "online" : "offline");
			power_supply_changed(&di->charger);

			if (online) {
				cancel_delayed_work_sync(&di->calc_capacity);
				queue_delayed_work(di->monitor_wqueue, &di->calc_capacity,0);
			} else {
				cancel_delayed_work_sync(&di->calc_capacity);
				queue_delayed_work(di->monitor_wqueue, &di->calc_capacity, HZ * 10);
			}

			cancel_delayed_work(&di->monitor_work);
			queue_delayed_work(di->monitor_wqueue,
				&di->monitor_work, HZ / 10);
			if (online) {
				//pmic_restart_charging();
				//queue_delayed_work(chg_wq, &chg_work, 100);
				chg_wa_timer = 1;
			} else {
				//cancel_delayed_work(&chg_work);
				chg_wa_timer = 0;
		        }
	        }
	}
	
        ////////////////////////////////////////////////
         bChargerIsDCDC = false;
	
	return ret;
}
Beispiel #15
0
static int mc34708_vgen2_get_voltage(struct regulator_dev *reg)
{
    unsigned int register_val = 0;
    int voltage = 0, mV = 0;

    CHECK_ERROR(pmic_read_reg(MC34708_REG_REGULATOR_SETTING0,
                              &register_val, PMIC_ALL_BITS));

    voltage = BITFEXT(register_val, VGEN2);

    switch (voltage) {
    case VGEN2_2_5V:
        mV = 2500;
        break;
    case VGEN2_2_7V:
        mV = 2700;
        break;
    case VGEN2_2_8V:
        mV = 2800;
        break;
    case VGEN2_2_9V:
        mV = 2900;
        break;
    case VGEN2_3V:
        mV = 3000;
        break;
    case VGEN2_3_1V:
        mV = 3100;
        break;
    case VGEN2_3_15V:
        mV = 3150;
        break;
    case VGEN2_3_3V:
        mV = 3300;
        break;
    default:
        return -EINVAL;
    }

    return mV * 1000;
}
static int mc13892_vgen3_get_voltage(struct regulator *reg)
{
	unsigned int register_val = 0;
	int voltage = 0, mV = 0;

	CHECK_ERROR(pmic_read_reg(REG_SETTING_0, &register_val, PMIC_ALL_BITS));
	voltage = BITFEXT(register_val, VGEN3);

	switch (voltage) {
	case VGEN3_1_8V:
		mV = 1800;
		break;
	case VGEN3_2_9V:
		mV = 2900;
		break;
	default:
		return -EINVAL;
	}

	return mV * 1000;
}
Beispiel #17
0
static void mc13892_battery_update_status(struct mc13892_dev_info *di)
{
	unsigned int value;
	int retval;
	int old_battery_status = di->battery_status;

	if (di->battery_status == POWER_SUPPLY_STATUS_UNKNOWN)
		di->full_counter = 0;

	if (di->charger_online) {
		retval = pmic_read_reg(REG_INT_SENSE0,
					&value, BITFMASK(BIT_CHG_CURRS));

		if (retval == 0) {
			value = BITFEXT(value, BIT_CHG_CURRS);
			if (value)
				di->battery_status =
					POWER_SUPPLY_STATUS_CHARGING;
			else
				di->battery_status =
					POWER_SUPPLY_STATUS_NOT_CHARGING;
		}

		if (di->battery_status == POWER_SUPPLY_STATUS_NOT_CHARGING)
			di->full_counter++;
		else
			di->full_counter = 0;
	} else {
		di->battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
		di->full_counter = 0;
	}

	dev_dbg(di->bat.dev, "bat status: %d\n",
		di->battery_status);

	if (old_battery_status != POWER_SUPPLY_STATUS_UNKNOWN &&
		di->battery_status != old_battery_status)
		power_supply_changed(&di->bat);
}
static int mc13892_vsd_get_voltage(struct regulator *reg)
{
	unsigned int register_val = 0;
	int voltage = 0, mV = 0;

	CHECK_ERROR(pmic_read_reg(REG_SETTING_1, &register_val, PMIC_ALL_BITS));
	voltage = BITFEXT(register_val, VSD);

	switch (voltage) {
	case VSD_1_8V:
		mV = 1800;
		break;
	case VSD_2_0V:
		mV = 2000;
		break;
	case VSD_2_6V:
		mV = 2600;
		break;
	case VSD_2_7V:
		mV = 2700;
		break;
	case VSD_2_8V:
		mV = 2800;
		break;
	case VSD_2_9V:
		mV = 2900;
		break;
	case VSD_3_0V:
		mV = 3000;
		break;
	case VSD_3_15V:
		mV = 3150;
		break;
	default:
		return -EINVAL;
	}

	return mV * 1000;
}
Beispiel #19
0
static int tps6518x_vcom_get_voltage(struct regulator_dev *reg)
{
	struct tps6518x *tps6518x = rdev_get_drvdata(reg);
	unsigned int cur_reg_val; /* current register value */
	unsigned int cur_reg2_val; /* current register value */
	unsigned int cur_fld_val; /* current bitfield value*/
	int vcomValue;


	/*
	* this will not work on tps65182
	*/
	if (tps6518x->revID == 65182)
		return 0;

	switch (tps6518x->revID & 15)
	{
	case 0 : /* TPS65180 */
	case 1 : /* TPS65181 */
	case 4 : /* TPS65180-rev1 */
		tps6518x_reg_read(REG_TPS65180_VCOM_ADJUST, &cur_reg_val);
		cur_fld_val = BITFEXT(cur_reg_val, VCOM_SET);
		vcomValue = vcom_rs_to_uV(cur_fld_val);
		break;
	case 5 : /* TPS65185 */
	case 6 : /* TPS65186 */
		tps6518x_reg_read(REG_TPS65185_VCOM1,&cur_reg_val);
		tps6518x_reg_read(REG_TPS65185_VCOM2,&cur_reg2_val);
		cur_reg_val |= 256 * (1 & cur_reg2_val);
		vcomValue = vcom2_rs_to_uV(cur_reg_val);
		break;
	default:
		vcomValue = 0;
	}

	return vcomValue;

}
Beispiel #20
0
static int mc13892_charger_update_status(struct mc13892_dev_info *di)
{
	int ret;
#ifndef CONFIG_MACH_MX51_ERDOS
	unsigned int value;
#endif /* CONFIG_MACH_MX51_ERDOS */
	int online;

#ifdef CONFIG_MACH_MX51_ERDOS
	ret = pmic_get_dcinput_voltage ((unsigned short *)0);
	if (ret == 0) {
		online = 1;
	} else if (ret == 1) {
		online = 0;
	} else {
		online = di->charger_online;	/* keep previous */
	}
	ret = 0;
		/*
	 * Battery/DCinput update
		 */
		if (online == 1) {
			gpio_battery_enable ( 0 );
	} else if (online == 0) {
			gpio_battery_enable ( 1 );
		}
	if (online != di->charger_online) {
		di->charger_online = online;
		/*
		 * check power_supply_register.
		 */
		if (di->charger.dev != 0) {
		dev_info(di->charger.dev, "charger status: %s\n",
			online ? "online" : "offline");
		power_supply_changed(&di->charger);
		} else {
			printk ("mc13892_charger_update_status: charger status: %s\n",
				online ? "online" : "offline");
		}
	}
#else
	ret = pmic_read_reg(REG_INT_SENSE0, &value, BITFMASK(BIT_CHG_DETS));

	if (ret == 0) {
		online = BITFEXT(value, BIT_CHG_DETS);
		if (online != di->charger_online) {
			di->charger_online = online;
			dev_info(di->charger.dev, "charger status: %s\n",
				online ? "online" : "offline");
			power_supply_changed(&di->charger);

			cancel_delayed_work(&di->monitor_work);
			queue_delayed_work(di->monitor_wqueue,
				&di->monitor_work, HZ / 10);
			if (online) {
				pmic_start_coulomb_counter();
				pmic_restart_charging();
			} else
				pmic_stop_coulomb_counter();
		}
	}
#endif /* CONFIG_MACH_MX51_ERDOS */

	return ret;
}
Beispiel #21
0
static int mc34708_sw_get_normal_voltage(struct regulator_dev *reg)
{
    unsigned int register_val = 0;
    int voltage = 0, mV = 0;
    int id = rdev_get_id(reg);

    switch (id) {
    case MC34708_SW1A:
        CHECK_ERROR(pmic_read_reg(MC34708_REG_SW1AB,
                                  &register_val, PMIC_ALL_BITS));
        voltage = BITFEXT(register_val, SW1A);
        mV = bit_value_to_uv(voltage, SW1_MIN_UV, SW1_STEP_UV) / 1000;
        break;
    case MC34708_SW1B:
        CHECK_ERROR(pmic_read_reg(MC34708_REG_SW1AB,
                                  &register_val, PMIC_ALL_BITS));
        voltage = BITFEXT(register_val, SW1B);
        mV = bit_value_to_uv(voltage, SW1_MIN_UV, SW1_STEP_UV) / 1000;
        break;
    case MC34708_SW2:
        CHECK_ERROR(pmic_read_reg(MC34708_REG_SW2_3,
                                  &register_val, PMIC_ALL_BITS));
        voltage = BITFEXT(register_val, SW2);
        mV = bit_value_to_uv(voltage, SW2_MIN_UV, SW2_STEP_UV) / 1000;
        break;
    case MC34708_SW3:
        CHECK_ERROR(pmic_read_reg(MC34708_REG_SW2_3,
                                  &register_val, PMIC_ALL_BITS));
        voltage = BITFEXT(register_val, SW3);
        mV = bit_value_to_mv(voltage, SW3_MIN_MV, SW3_STEP_MV);
        break;
    case MC34708_SW4A:
        CHECK_ERROR(pmic_read_reg(MC34708_REG_SW4AB,
                                  &register_val, PMIC_ALL_BITS));
        voltage = BITFEXT(register_val, SW4AHI);
        if (voltage == 0) {
            voltage = BITFEXT(register_val, SW4A);
            mV = bit_value_to_mv(voltage, SW4_MIN_MV, SW4_STEP_MV);
        } else if (voltage == 1)
            mV = SW4_HI_2500_MV;
        else if (voltage == 2)
            mV = SW4_HI_3150_MV;
        else
            mV = SW4_HI_3300_MV;
        break;
    case MC34708_SW4B:
        CHECK_ERROR(pmic_read_reg(MC34708_REG_SW4AB,
                                  &register_val, PMIC_ALL_BITS));
        voltage = BITFEXT(register_val, SW4BHI);
        if (voltage == 0) {
            voltage = BITFEXT(register_val, SW4B);
            mV = bit_value_to_mv(voltage, SW4_MIN_MV, SW4_STEP_MV);
        } else if (voltage == 1)
            mV = SW4_HI_2500_MV;
        else if (voltage == 2)
            mV = SW4_HI_3150_MV;
        else
            mV = SW4_HI_3300_MV;
        break;
    case MC34708_SW5:
        CHECK_ERROR(pmic_read_reg(MC34708_REG_SW5,
                                  &register_val, PMIC_ALL_BITS));
        voltage = BITFEXT(register_val, SW5);
        mV = bit_value_to_mv(voltage, SW5_MIN_MV, SW5_STEP_MV);
        break;
    default:
        break;
    }
    if (mV == 0)
        return -EINVAL;
    else
        return mV * 1000;
}
Beispiel #22
0
PMIC_STATUS mc13892_bklit_get_current(enum lit_channel channel,
				      unsigned char *level)
{
	unsigned int reg_value = 0;
	unsigned int mask = 0;
	int reg, mode;

	CHECK_ERROR(mc13892_bklit_get_hi_current(channel, &mode));

	switch (channel) {
	case LIT_MAIN:
		mask = BITFMASK(BIT_CL_MAIN);
		reg = REG_LED_CTL0;
		break;
	case LIT_AUX:
		mask = BITFMASK(BIT_CL_AUX);
		reg = REG_LED_CTL0;
		break;
	case LIT_KEY:
		mask = BITFMASK(BIT_CL_KEY);
		reg = REG_LED_CTL1;
		break;
	case LIT_RED:
		mask = BITFMASK(BIT_CL_RED);
		reg = REG_LED_CTL2;
		break;
	case LIT_GREEN:
		mask = BITFMASK(BIT_CL_GREEN);
		reg = REG_LED_CTL2;
		break;
	case LIT_BLUE:
		mask = BITFMASK(BIT_CL_BLUE);
		reg = REG_LED_CTL3;
		break;
	default:
		return PMIC_PARAMETER_ERROR;
	}

	CHECK_ERROR(pmic_read_reg(reg, &reg_value, mask));

	switch (channel) {
	case LIT_MAIN:
		*level = BITFEXT(reg_value, BIT_CL_MAIN);
		break;
	case LIT_AUX:
		*level = BITFEXT(reg_value, BIT_CL_AUX);
		break;
	case LIT_KEY:
		*level = BITFEXT(reg_value, BIT_CL_KEY);
		break;
	case LIT_RED:
		*level = BITFEXT(reg_value, BIT_CL_RED);
		break;
	case LIT_GREEN:
		*level = BITFEXT(reg_value, BIT_CL_GREEN);
		break;
	case LIT_BLUE:
		*level = BITFEXT(reg_value, BIT_CL_BLUE);
		break;
	default:
		return PMIC_PARAMETER_ERROR;
	}

	if (mode == 1)
		*level += LIT_CURR_HI_0;

	return PMIC_SUCCESS;
}