mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-11 16:54:21 -05:00
2bedb5f09f
* fixes * more fixes * more fixes * fix * more fixes * fix icon updates * fix init unk error * simplify * improve icon init * code format * Update ui_battinfo.cpp
134 lines
3.8 KiB
C++
134 lines
3.8 KiB
C++
/*
|
|
* Copyright (C) 2024 jLynx.
|
|
*
|
|
* This file is part of PortaPack.
|
|
*
|
|
* 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, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include "ads1110.hpp"
|
|
#include "utility.hpp"
|
|
#include <algorithm>
|
|
#include <cstdint>
|
|
|
|
namespace battery {
|
|
namespace ads1110 {
|
|
|
|
constexpr uint16_t BATTERY_MIN_VOLTAGE = 3000;
|
|
constexpr uint16_t BATTERY_MAX_VOLTAGE = 4000;
|
|
|
|
void ADS1110::init() {
|
|
if (!detected_) {
|
|
detected_ = detect();
|
|
}
|
|
if (detected_) {
|
|
// Set the configuration register
|
|
write(0x8C);
|
|
}
|
|
}
|
|
|
|
bool ADS1110::detect() {
|
|
uint8_t data[3];
|
|
if (bus.receive(bus_address, data, 3)) {
|
|
// Check if the received data is valid
|
|
uint8_t configRegister = data[2];
|
|
if ((configRegister & 0x0F) == 0x0C) {
|
|
// The configuration register value matches the expected value (0x8C)
|
|
detected_ = true;
|
|
return true;
|
|
}
|
|
}
|
|
detected_ = false;
|
|
return false;
|
|
}
|
|
|
|
bool ADS1110::write(const uint8_t value) {
|
|
return bus.transmit(bus_address, &value, 1);
|
|
}
|
|
|
|
// returns the batt voltage in mV
|
|
uint16_t ADS1110::readVoltage() {
|
|
// Read the conversion result
|
|
uint8_t data[3];
|
|
if (!bus.receive(bus_address, data, 3)) {
|
|
return 0.0f; // Return 0 if the read fails
|
|
}
|
|
|
|
uint16_t raw = (static_cast<uint16_t>(data[0]) << 8) | data[1];
|
|
|
|
// Calculate the voltage based on the output code
|
|
int16_t voltage = 0;
|
|
float minCode = 0;
|
|
float pga = 0.0f;
|
|
|
|
uint8_t pga_rate = data[2] & 0x03;
|
|
switch (pga_rate) {
|
|
case 0:
|
|
pga = 1.0f;
|
|
break;
|
|
case 1:
|
|
pga = 2.0f;
|
|
break;
|
|
case 2:
|
|
pga = 4.0f;
|
|
break;
|
|
case 3:
|
|
pga = 8.0f;
|
|
break;
|
|
default:
|
|
// Handle invalid data rate
|
|
break;
|
|
}
|
|
|
|
uint8_t data_rate = (data[2] >> 2) & 0x03;
|
|
switch (data_rate) {
|
|
case 0: // 240
|
|
minCode = -2048.0;
|
|
break;
|
|
case 1: // 60
|
|
minCode = -8192.0;
|
|
break;
|
|
case 2: // 30
|
|
minCode = -16384.0;
|
|
break;
|
|
case 3: // 15
|
|
minCode = -32768.0;
|
|
break;
|
|
default:
|
|
// Handle invalid data rate
|
|
break;
|
|
}
|
|
|
|
// 2.048 is the reference voltage & 2.0 is to make up for the voltage divider
|
|
voltage = (int16_t)(raw / (-1.0 * minCode) * pga * 2.048 * 2.0 * 1000.0); // v to mV
|
|
if (voltage < 0) voltage *= -1; // should not happen in this build, but prevent it
|
|
return (uint16_t)voltage;
|
|
}
|
|
|
|
void ADS1110::getBatteryInfo(uint8_t& valid_mask, uint8_t& batteryPercentage, uint16_t& voltage) {
|
|
voltage = readVoltage();
|
|
|
|
// Calculate the remaining battery percentage
|
|
batteryPercentage = (float)(voltage - BATTERY_MIN_VOLTAGE) / (float)(BATTERY_MAX_VOLTAGE - BATTERY_MIN_VOLTAGE) * 100.0;
|
|
|
|
// Limit the values to the valid range
|
|
batteryPercentage = (batteryPercentage > 100) ? 100 : batteryPercentage;
|
|
// ToDo: if its > 4, then 100%, if < 3 then 0%
|
|
valid_mask = 1; // BATT_VALID_VOLTAGE
|
|
}
|
|
|
|
} /* namespace ads1110 */
|
|
} // namespace battery
|