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Big: Correct the charger IC driver
Add bq24735 driver and move to here for further developing BRANCH=big BUG=None TEST=test basic charing/discharging function Change-Id: I66c22a29cf94383cec86c5cf53db82494504fa77 Reviewed-on: https://chromium-review.googlesource.com/196541 Reviewed-by: Yung-chieh Lo <yjlou@chromium.org> Tested-by: Lin Cloud <cloud_lin@compal.com> Commit-Queue: Lin Cloud <cloud_lin@compal.com>
This commit is contained in:
cloud_lin
committed by
chrome-internal-fetch
chrome-internal-fetch
parent
2e7ea4efdb
commit
295e409ea9
@@ -14,7 +14,7 @@
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#define CONFIG_BATTERY_CUT_OFF
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#define CONFIG_CHARGER
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#define CONFIG_CHARGER_V2
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#define CONFIG_CHARGER_BQ24725
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#define CONFIG_CHARGER_BQ24735
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#define CONFIG_CHIPSET_TEGRA
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#define CONFIG_POWER_COMMON
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#define CONFIG_EXTPOWER_GPIO
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@@ -24,6 +24,7 @@ driver-$(CONFIG_CHARGER_BQ24192)+=charger/bq24192.o
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driver-$(CONFIG_CHARGER_BQ24707A)+=charger/bq24707a.o
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driver-$(CONFIG_CHARGER_BQ24715)+=charger/bq24715.o
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driver-$(CONFIG_CHARGER_BQ24725)+=charger/bq24725.o
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driver-$(CONFIG_CHARGER_BQ24735)+=charger/bq24735.o
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driver-$(CONFIG_CHARGER_BQ24738)+=charger/bq24738.o
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driver-$(CONFIG_CHARGER_BQ24773)+=charger/bq24773.o
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183
driver/charger/bq24735.c
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183
driver/charger/bq24735.c
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@@ -0,0 +1,183 @@
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/* Copyright (c) 2014 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 bq24735 battery charger driver.
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*/
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#include "battery_smart.h"
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#include "bq24735.h"
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#include "charger.h"
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#include "console.h"
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#include "common.h"
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#include "util.h"
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/* Sense resistor configurations and macros */
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#define DEFAULT_SENSE_RESISTOR 10
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#define R_SNS CONFIG_CHARGER_SENSE_RESISTOR
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#define R_AC CONFIG_CHARGER_SENSE_RESISTOR_AC
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#define REG_TO_CURRENT(REG, RS) ((REG) * DEFAULT_SENSE_RESISTOR / (RS))
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#define CURRENT_TO_REG(CUR, RS) ((CUR) * (RS) / DEFAULT_SENSE_RESISTOR)
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/* Charger infomation
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* charge voltage bitmask: 0111 1111 1111 0000
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* charge current bitmask: 0001 1111 1000 0000
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* input current bitmask : 0000 0000 1000 0000
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*/
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static const struct charger_info bq24735_charger_info = {
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.name = "bq24735",
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.voltage_max = 19200,
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.voltage_min = 1024,
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.voltage_step = 16,
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.current_max = REG_TO_CURRENT(8128, R_SNS),
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.current_min = REG_TO_CURRENT(128, R_SNS),
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.current_step = REG_TO_CURRENT(128, R_SNS),
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.input_current_max = REG_TO_CURRENT(8064, R_AC),
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.input_current_min = REG_TO_CURRENT(128, R_AC),
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.input_current_step = REG_TO_CURRENT(128, R_AC),
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};
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/* bq24735 specific interfaces */
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int charger_set_input_current(int input_current)
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{
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return sbc_write(BQ24735_INPUT_CURRENT,
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CURRENT_TO_REG(input_current, R_AC));
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}
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int charger_get_input_current(int *input_current)
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{
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int rv;
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int reg;
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rv = sbc_read(BQ24735_INPUT_CURRENT, ®);
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if (rv)
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return rv;
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*input_current = REG_TO_CURRENT(reg, R_AC);
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return EC_SUCCESS;
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}
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int charger_manufacturer_id(int *id)
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{
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return sbc_read(BQ24735_MANUFACTURE_ID, id);
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}
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int charger_device_id(int *id)
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{
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return sbc_read(BQ24735_DEVICE_ID, id);
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}
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int charger_get_option(int *option)
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{
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return sbc_read(BQ24735_CHARGE_OPTION, option);
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}
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int charger_set_option(int option)
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{
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return sbc_write(BQ24735_CHARGE_OPTION, option);
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}
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/* Charger interfaces */
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const struct charger_info *charger_get_info(void)
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{
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return &bq24735_charger_info;
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}
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int charger_get_status(int *status)
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{
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int rv;
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int option;
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rv = charger_get_option(&option);
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if (rv)
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return rv;
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/* Default status */
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*status = CHARGER_LEVEL_2;
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if (option & OPTION_CHARGE_INHIBIT)
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*status |= CHARGER_CHARGE_INHIBITED;
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return EC_SUCCESS;
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}
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int charger_set_mode(int mode)
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{
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int rv;
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int option;
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rv = charger_get_option(&option);
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if (rv)
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return rv;
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if (mode & CHARGE_FLAG_INHIBIT_CHARGE)
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option |= OPTION_CHARGE_INHIBIT;
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else
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option &= ~OPTION_CHARGE_INHIBIT;
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return charger_set_option(option);
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}
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int charger_get_current(int *current)
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{
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int rv;
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int reg;
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rv = sbc_read(SB_CHARGING_CURRENT, ®);
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if (rv)
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return rv;
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*current = REG_TO_CURRENT(reg, R_SNS);
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return EC_SUCCESS;
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}
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int charger_set_current(int current)
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{
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current = charger_closest_current(current);
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return sbc_write(SB_CHARGING_CURRENT, CURRENT_TO_REG(current, R_SNS));
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}
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int charger_get_voltage(int *voltage)
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{
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return sbc_read(SB_CHARGING_VOLTAGE, voltage);
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}
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int charger_set_voltage(int voltage)
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{
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return sbc_write(SB_CHARGING_VOLTAGE, voltage);
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}
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/* Charging power state initialization */
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int charger_post_init(void)
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{
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/*
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* Note: bq24735 power on reset state is:
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* watch dog timer = 175 sec
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* input current limit = ~1/2 maximum setting
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* charging voltage = 0 mV
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* charging current = 0 mA
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*/
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/* Set charger input current limit */
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return charger_set_input_current(CONFIG_CHARGER_INPUT_CURRENT);
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}
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int charger_discharge_on_ac(int enable)
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{
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int rv;
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int option;
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rv = charger_get_option(&option);
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if (rv)
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return rv;
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if (enable)
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rv = charger_set_option(option | OPTION_LEARN_ENABLE);
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else
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rv = charger_set_option(option & ~OPTION_LEARN_ENABLE);
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return rv;
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}
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57
driver/charger/bq24735.h
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57
driver/charger/bq24735.h
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@@ -0,0 +1,57 @@
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/* Copyright (c) 2014 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 bq24735 battery charger driver.
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*/
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#ifndef __CROS_EC_CHARGER_BQ24735_H
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#define __CROS_EC_CHARGER_BQ24735_H
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/* Chip specific commands */
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#define BQ24735_CHARGE_OPTION 0x12
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#define BQ24735_INPUT_CURRENT 0x3f
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#define BQ24735_MANUFACTURE_ID 0xfe
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#define BQ24735_DEVICE_ID 0xff
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/* ChargeOption 0x12 */
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#define OPTION_CHARGE_INHIBIT (1 << 0)
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#define OPTION_ACOC_THRESHOLD (1 << 1)
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#define OPTION_BOOST_MODE_STATE (1 << 2)
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#define OPTION_BOOST_MODE_ENABLE (1 << 3)
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#define OPTION_ACDET_STATE (1 << 4)
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#define OPTION_IOUT_SELECTION (1 << 5)
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#define OPTION_LEARN_ENABLE (1 << 6)
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#define OPTION_IFAULT_LOW_THRESHOLD (1 << 7)
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#define OPTION_IFAULT_HI_ENABLE (1 << 8)
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#define OPTION_EMI_FREQ_ENABLE (1 << 9)
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#define OPTION_EMI_FREQ_ADJ (1 << 10)
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#define OPTION_BAT_DEPLETION_THRESHOLD (3 << 11)
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#define OPTION_WATCHDOG_TIMER (3 << 13)
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#define OPTION_ACPRES_DEGLITCH_TIME (1 << 15)
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/* OPTION_ACOC_THRESHOLD */
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#define ACOC_THRESHOLD_DISABLE (0 << 1)
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#define ACOC_THRESHOLD_133X (1 << 1)
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/* OPTION_IFAULT_LOW_THRESHOLD */
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#define IFAULT_LOW_135MV_DEFAULT (0 << 7)
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#define IFAULT_LOW_230MV (1 << 7)
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/* OPTION_BAT_DEPLETION_THRESHOLD */
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#define FALLING_THRESHOLD_5919 (0 << 11)
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#define FALLING_THRESHOLD_6265 (1 << 11)
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#define FALLING_THRESHOLD_6655 (2 << 11)
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#define FALLING_THRESHOLD_7097_DEFAULT (3 << 11)
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/* OPTION_WATCHDOG_TIMER */
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#define CHARGE_WATCHDOG_DISABLE (0 << 13)
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#define CHARGE_WATCHDOG_44SEC (1 << 13)
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#define CHARGE_WATCHDOG_88SEC (2 << 13)
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#define CHARGE_WATCHDOG_175SEC_DEFAULT (3 << 13)
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/* OPTION_ACPRES_DEGLITCH_TIME */
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#define ACPRES_DEGLITCH_150MS (0 << 15)
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#define ACPRES_DEGLITCH_1300MS_DEFAULT (1 << 15)
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#endif /* __CROS_EC_CHARGER_BQ24735_H */
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