rockbox/firmware/export/axp173.h

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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 __AXP173_H__
#define __AXP173_H__
#include <stdbool.h>
#include <stdint.h>
#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 AXP173_ADC_RATE_25HZ 0
#define AXP173_ADC_RATE_50HZ 1
#define AXP173_ADC_RATE_100HZ 2
#define AXP173_ADC_RATE_200HZ 3
/* Return values of axp173_battery_status() */
#define AXP173_BATT_DISCHARGING 0
#define AXP173_BATT_CHARGING 1
#define AXP173_BATT_FULL 2
/* Bits returned by axp173_input_status() */
#define AXP173_INPUT_AC (1 << 0)
#define AXP173_INPUT_USB (1 << 1)
#define AXP173_INPUT_BATTERY (1 << 2)
#define AXP173_INPUT_EXTERNAL (AXP173_INPUT_AC|AXP173_INPUT_USB)
/* Must be called from power_init() to initialize the driver state */
extern void axp173_init(void);
/* Basic battery and power supply status */
extern int axp173_battery_status(void);
extern int axp173_input_status(void);
/* ADC access -- ADCs which are not enabled will return INT_MIN if read.
* The output of axp173_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 axp173_adc_conv_raw() for raw value precision/scale.
*/
extern int axp173_adc_read(int adc);
extern int axp173_adc_read_raw(int adc);
extern int axp173_adc_conv_raw(int adc, int value);
extern int axp173_adc_get_enabled(void);
extern void axp173_adc_set_enabled(int adc_bits);
extern int axp173_adc_get_rate(void);
extern void axp173_adc_set_rate(int rate);
/* - axp173_cc_read() reads the coulomb counters
* - axp173_cc_clear() resets both counters to zero
* - axp173_cc_enable() will stop/start the counters running
*/
extern void axp173_cc_read(uint32_t* charge, uint32_t* discharge);
extern void axp173_cc_clear(void);
extern void axp173_cc_enable(bool en);
/* Debug menu */
extern bool axp173_debug_menu(void);
#endif /* __AXP173_H__ */