76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
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/* Copyright 2018 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* TI bq25703 battery charger driver.
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*/
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#ifndef __CROS_EC_BQ25703_H
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#define __CROS_EC_BQ25703_H
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/* I2C Interface */
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#define BQ25703_I2C_ADDR1_FLAGS 0x6B
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/*
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* BC1.2 minimum voltage threshold for BQ25703.
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* BC1.2 charging port output voltage range is 4.75V to 5.25V,
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* BQ25703 Input Voltage Accuracy is -2% to +2% (-95mV to +95mV)
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* 4750mV - 95mV => 4655mV - 3200 (offset reg 0x0A) => 1455mv
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* 1455mv & 0x1FC0 = 1408 (data for register 0x0A)
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*/
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#define BQ25703_BC12_MIN_VOLTAGE_MV 1408
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/* Registers */
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/* ChargeOption0 Register */
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#define BQ25703_REG_CHARGE_OPTION_0 0x00
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#define BQ25703_CHARGE_OPTION_0_LOW_POWER_MODE BIT(15)
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#define BQ25703_CHARGE_OPTION_0_EN_LEARN BIT(5)
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#define BQ25703_CHARGE_OPTION_0_CHRG_INHIBIT BIT(0)
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#define BQ25703_REG_CHARGE_CURRENT 0x02
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#define BQ25703_REG_MAX_CHARGE_VOLTAGE 0x04
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#define BQ25703_REG_CHARGE_OPTION_1 0x30
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/* ChargeOption2 Register */
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#define BQ25703_REG_CHARGE_OPTION_2 0x32
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#define BQ25703_CHARGE_OPTION_2_EN_EXTILIM BIT(7)
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/* ChargeOption3 Register */
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#define BQ25703_REG_CHARGE_OPTION_3 0x34
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#define BQ25703_CHARGE_OPTION_3_EN_ICO_MODE BIT(11)
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#define BQ25703_REG_PROCHOT_OPTION_0 0x36
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#define BQ25703_REG_PROCHOT_OPTION_1 0x38
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/* ADCOption Register */
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#define BQ25703_REG_ADC_OPTION 0x3A
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#define BQ25703_ADC_OPTION_ADC_START BIT(14)
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#define BQ25703_ADC_OPTION_EN_ADC_IIN BIT(4)
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/* ChargeStatus Register */
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#define BQ25703_REG_CHARGER_STATUS 0x20
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#define BQ25703_CHARGE_STATUS_ICO_DONE BIT(14)
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#define BQ25703_REG_PROCHOT_STATUS 0x22
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#define BQ25703_REG_IIN_DPM 0x25
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#define BQ25703_REG_ADC_PSYS 0x26
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#define BQ25703_REG_ADC_VBUS 0x27
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#define BQ25703_REG_ADC_IBAT 0x28
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#define BQ25703_REG_ADC_CMPIN 0x2A
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/* ADCIIN Register */
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#define BQ25703_REG_ADC_IIN 0x2B
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#define BQ25703_ADC_IIN_STEP_MA 50
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#define BQ25703_REG_ADC_VSYS_VBAT 0x2C
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#define BQ25703_REG_OTG_VOLTAGE 0x06
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#define BQ25703_REG_OTG_CURRENT 0x08
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#define BQ25703_REG_INPUT_VOLTAGE 0x0A
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#define BQ25703_REG_MIN_SYSTEM_VOLTAGE 0x0C
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#define BQ25703_REG_IIN_HOST 0x0F
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#define BQ25703_REG_MANUFACTURER_ID 0x2E
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#define BQ25703_REG_DEVICE_ADDRESS 0x2F
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#endif /* __CROS_EC_BQ25703_H */
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