152 lines
5.3 KiB
C
152 lines
5.3 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2021 Aidan MacDonald
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef __AXP_PMU_H__
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#define __AXP_PMU_H__
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#include "config.h"
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#include <stdbool.h>
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#include <stdint.h>
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/* ADC channels */
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#define ADC_ACIN_VOLTAGE 0
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#define ADC_ACIN_CURRENT 1
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#define ADC_VBUS_VOLTAGE 2
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#define ADC_VBUS_CURRENT 3
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#define ADC_INTERNAL_TEMP 4
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#define ADC_TS_INPUT 5
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#define ADC_BATTERY_VOLTAGE 6
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#define ADC_CHARGE_CURRENT 7
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#define ADC_DISCHARGE_CURRENT 8
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#define ADC_APS_VOLTAGE 9
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#define ADC_BATTERY_POWER 10
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#define NUM_ADC_CHANNELS 11
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/* ADC sampling rates */
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#define AXP_ADC_RATE_25HZ 0
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#define AXP_ADC_RATE_50HZ 1
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#define AXP_ADC_RATE_100HZ 2
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#define AXP_ADC_RATE_200HZ 3
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/* Return values of axp_battery_status() */
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#define AXP_BATT_DISCHARGING 0
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#define AXP_BATT_CHARGING 1
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#define AXP_BATT_FULL 2
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/* Bits returned by axp_input_status() */
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#define AXP_INPUT_AC (1 << 0)
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#define AXP_INPUT_USB (1 << 1)
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#define AXP_INPUT_BATTERY (1 << 2)
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#define AXP_INPUT_EXTERNAL (AXP_INPUT_AC|AXP_INPUT_USB)
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/* Power supplies known by this driver. Not every chip has all supplies! */
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#define AXP_SUPPLY_DCDC1 0
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#define AXP_SUPPLY_DCDC2 1
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#define AXP_SUPPLY_DCDC3 2
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#define AXP_SUPPLY_LDO1 3
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#define AXP_SUPPLY_LDO2 4
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#define AXP_SUPPLY_LDO3 5
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#define AXP_SUPPLY_LDO_IO0 6
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#define AXP_NUM_SUPPLIES 7
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/* Special values returned by axp_supply_get_voltage */
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#define AXP_SUPPLY_NOT_PRESENT INT_MIN
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#define AXP_SUPPLY_DISABLED (-1)
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/* Registers -- common to AXP173 and AXP192 (incomplete listing) */
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#define AXP_REG_POWERSTATUS 0x00
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#define AXP_REG_CHARGESTATUS 0x01
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#define AXP_REG_CHIP_ID 0x03
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#define AXP_REG_PWROUTPUTCTRL1 0x10
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#define AXP_REG_PWROUTPUTCTRL2 0x12
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#define AXP_REG_SHUTDOWNLEDCTRL 0x32
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#define AXP_REG_CHARGECONTROL1 0x33
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#define AXP_REG_DCDCWORKINGMODE 0x80
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#define AXP_REG_ADCENABLE1 0x82
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#define AXP_REG_ADCENABLE2 0x83
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#define AXP_REG_ADCSAMPLERATE 0x84
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#define AXP_REG_COULOMBCOUNTERBASE 0xb0
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#define AXP_REG_COULOMBCOUNTERCTRL 0xb8
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/* AXP192-only registers (incomplete listing) */
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#define AXP192_REG_GPIO0FUNCTION 0x90
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#define AXP192_REG_GPIO1FUNCTION 0x92
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#define AXP192_REG_GPIO2FUNCTION 0x93
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#define AXP192_REG_GPIOSTATE1 0x94
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/* Must be called from power_init() to initialize the driver state */
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extern void axp_init(void);
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/* - axp_supply_set_voltage(): set a supply voltage to the given value
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* in millivolts. Pass a voltage of AXP_SUPPLY_DISABLED to shut off
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* the supply. Any invalid supply or voltage will make the call a no-op.
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*
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* - axp_supply_get_voltage() returns a supply voltage in millivolts.
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* If the supply is powered off, returns AXP_SUPPLY_DISABLED.
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* If the chip does not have the supply, returns AXP_SUPPLY_NOT_PRESENT.
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*/
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extern void axp_supply_set_voltage(int supply, int voltage);
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extern int axp_supply_get_voltage(int supply);
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/* Basic battery and power supply status */
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extern int axp_battery_status(void);
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extern int axp_input_status(void);
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/* ADC access -- ADCs which are not enabled will return INT_MIN if read.
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* The output of axp_adc_read() is normalized to appropriate units:
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*
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* - for voltages, the scale is millivolts
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* - for currents, the scale is milliamps
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* - for temperatures, the scale is tenths of a degree Celsius
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* - for power, the scale is microwatts
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*
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* See the comment in axp_adc_conv_raw() for raw value precision/scale.
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*/
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extern int axp_adc_read(int adc);
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extern int axp_adc_read_raw(int adc);
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extern int axp_adc_conv_raw(int adc, int value);
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extern int axp_adc_get_enabled(void);
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extern void axp_adc_set_enabled(int adc_bits);
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extern int axp_adc_get_rate(void);
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extern void axp_adc_set_rate(int rate);
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/* - axp_cc_read() reads the coulomb counters
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* - axp_cc_clear() resets both counters to zero
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* - axp_cc_enable() will stop/start the counters running
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* - axp_cc_is_enabled() returns true if the counters are running
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*/
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extern void axp_cc_read(uint32_t* charge, uint32_t* discharge);
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extern void axp_cc_clear(void);
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extern void axp_cc_enable(bool en);
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extern bool axp_cc_is_enabled(void);
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/* Set/get maximum charging current in milliamps */
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extern void axp_set_charge_current(int maxcurrent);
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extern int axp_get_charge_current(void);
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/* Set the shutdown bit */
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extern void axp_power_off(void);
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/* Debug menu */
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extern bool axp_debug_menu(void);
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#endif /* __AXP_PMU_H__ */
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