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