flipperzero-firmware/applications/power/power.c

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C
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#include "power.h"
#include <flipper_v2.h>
#include <gui/gui.h>
#include <gui/widget.h>
#include <assets_icons.h>
#define BATTERY_MIN_VOLTAGE 3.2f
#define BATTERY_MAX_VOLTAGE 4.0f
#define BATTERY_INIT 0xFFAACCEE
extern ADC_HandleTypeDef hadc1;
struct Power {
Icon* usb_icon;
Widget* usb_widget;
Icon* battery_icon;
Widget* battery_widget;
uint32_t charge;
};
void power_draw_usb_callback(CanvasApi* canvas, void* context) {
assert(context);
Power* power = context;
canvas->draw_icon(canvas, 0, 0, power->usb_icon);
}
void power_draw_battery_callback(CanvasApi* canvas, void* context) {
assert(context);
Power* power = context;
canvas->draw_icon(canvas, 0, 0, power->battery_icon);
if(power->charge != BATTERY_INIT) {
float charge = ((float)power->charge / 1000 * 2 - BATTERY_MIN_VOLTAGE) /
(BATTERY_MAX_VOLTAGE - BATTERY_MIN_VOLTAGE);
if(charge > 1) {
charge = 1;
}
canvas->draw_box(canvas, 2, 2, charge * 14, 4);
}
}
void power_input_events_callback(const void* value, void* ctx) {
assert(ctx);
Power* power = ctx;
const InputEvent* event = value;
if(event->input != InputCharging) return;
widget_enabled_set(power->usb_widget, event->state);
widget_update(power->usb_widget);
}
Power* power_alloc() {
Power* power = furi_alloc(sizeof(Power));
power->usb_icon = assets_icons_get(I_USBConnected_15x8);
power->usb_widget = widget_alloc();
widget_set_width(power->usb_widget, icon_get_width(power->usb_icon));
ValueManager* input_state_manager = furi_open("input_state");
InputState input_state;
read_mutex_block(&input_state_manager->value, &input_state, sizeof(input_state));
widget_enabled_set(power->usb_widget, input_state.charging);
widget_draw_callback_set(power->usb_widget, power_draw_usb_callback, power);
power->battery_icon = assets_icons_get(I_Battery_19x8);
power->battery_widget = widget_alloc();
widget_set_width(power->battery_widget, icon_get_width(power->battery_icon));
widget_draw_callback_set(power->battery_widget, power_draw_battery_callback, power);
PubSub* input_event_record = furi_open("input_events");
assert(input_event_record);
subscribe_pubsub(input_event_record, power_input_events_callback, power);
power->charge = BATTERY_INIT;
return power;
}
void power_free(Power* power) {
assert(power);
free(power);
}
void power_task(void* p) {
(void)p;
Power* power = power_alloc();
FuriRecordSubscriber* gui_record = furi_open_deprecated("gui", false, false, NULL, NULL, NULL);
assert(gui_record);
GuiApi* gui = furi_take(gui_record);
assert(gui);
gui->add_widget(gui, power->usb_widget, GuiLayerStatusBarLeft);
gui->add_widget(gui, power->battery_widget, GuiLayerStatusBarRight);
furi_commit(gui_record);
if(!furi_create("power", power)) {
printf("[power_task] unable to create power record\n");
furiac_exit(NULL);
}
furiac_ready();
while(1) {
HAL_ADC_Start(&hadc1);
if(HAL_ADC_PollForConversion(&hadc1, 1000) != HAL_TIMEOUT) {
power->charge = HAL_ADC_GetValue(&hadc1);
widget_update(power->battery_widget);
}
osDelay(1000);
}
}