// CC0 1.0 Universal (CC0 1.0) // Public Domain Dedication // https://github.com/nmrr #include <stdio.h> #include <furi.h> #include <gui/gui.h> #include <input/input.h> #include <notification/notification_messages.h> #include <furi_hal_random.h> #include <furi_hal_pwm.h> #define SCREEN_SIZE_X 128 #define SCREEN_SIZE_Y 64 typedef enum { EventTypeInput, ClockEventTypeTick, EventGPIO, } EventType; typedef struct { EventType type; InputEvent input; } EventApp; typedef struct { uint32_t cps, cpm; uint32_t line[SCREEN_SIZE_X/2]; float coef; } mutexStruct; static void draw_callback(Canvas* canvas, void* ctx) { UNUSED(ctx); mutexStruct displayStruct; mutexStruct* lfsrMutex = (mutexStruct*)acquire_mutex_block((ValueMutex*)ctx); memcpy(&displayStruct, lfsrMutex, sizeof(mutexStruct)); release_mutex((ValueMutex*)ctx, lfsrMutex); char buffer[32]; snprintf(buffer, sizeof(buffer), "%ld cps - %ld cpm", displayStruct.cps, displayStruct.cpm); for (int i=0;i<SCREEN_SIZE_X;i+=2) { float Y = SCREEN_SIZE_Y-(displayStruct.line[i/2]*displayStruct.coef); canvas_draw_line(canvas, i, Y, i, SCREEN_SIZE_Y); canvas_draw_line(canvas, i+1, Y, i+1, SCREEN_SIZE_Y); } canvas_set_font(canvas, FontPrimary); canvas_draw_str_aligned(canvas, 64, 10, AlignCenter, AlignBottom, buffer); } static void input_callback(InputEvent* input_event, void* ctx) { furi_assert(ctx); FuriMessageQueue* event_queue = ctx; EventApp event = {.type = EventTypeInput, .input = *input_event}; furi_message_queue_put(event_queue, &event, FuriWaitForever); } static void clock_tick(void* ctx) { furi_assert(ctx); uint32_t randomNumber = furi_hal_random_get(); randomNumber &= 0xFFF; if (randomNumber == 0) randomNumber = 1; furi_hal_pwm_start(FuriHalPwmOutputIdLptim2PA4, randomNumber, 50); FuriMessageQueue* queue = ctx; EventApp event = {.type = ClockEventTypeTick}; furi_message_queue_put(queue, &event, 0); } static void gpiocallback(void* ctx) { furi_assert(ctx); FuriMessageQueue* queue = ctx; EventApp event = {.type = EventGPIO}; furi_message_queue_put(queue, &event, 0); } int32_t flipper_geiger_app() { EventApp event; FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(EventApp)); furi_hal_gpio_init(&gpio_ext_pa7, GpioModeInterruptFall, GpioPullUp, GpioSpeedVeryHigh); furi_hal_pwm_start(FuriHalPwmOutputIdLptim2PA4, 5, 20); mutexStruct mutexVal; mutexVal.cps = 0; mutexVal.cpm = 0; for (int i=0;i<SCREEN_SIZE_X/2;i++) mutexVal.line[i] = 0; mutexVal.coef = 1; uint32_t counter = 0; ValueMutex state_mutex; init_mutex(&state_mutex, &mutexVal, sizeof(mutexVal)); ViewPort* view_port = view_port_alloc(); view_port_draw_callback_set(view_port, draw_callback, &state_mutex); view_port_input_callback_set(view_port, input_callback, event_queue); furi_hal_gpio_add_int_callback(&gpio_ext_pa7, gpiocallback, event_queue); Gui* gui = furi_record_open(RECORD_GUI); gui_add_view_port(gui, view_port, GuiLayerFullscreen); FuriTimer* timer = furi_timer_alloc(clock_tick, FuriTimerTypePeriodic, event_queue); furi_timer_start(timer, 1000); while(1) { FuriStatus event_status = furi_message_queue_get(event_queue, &event, FuriWaitForever); uint8_t screenRefresh = 0; if (event_status == FuriStatusOk) { if(event.type == EventTypeInput) { if(event.input.key == InputKeyBack) { break; } else if(event.input.key == InputKeyOk && event.input.type == InputTypeShort) { counter = 0; mutexStruct* lfsrMutex = (mutexStruct*)acquire_mutex_block(&state_mutex); mutexVal.cps = 0; mutexVal.cpm = 0; for (int i=0;i<SCREEN_SIZE_X/2;i++) mutexVal.line[i] = 0; screenRefresh = 1; release_mutex(&state_mutex, lfsrMutex); } } else if (event.type == ClockEventTypeTick) { mutexStruct* lfsrMutex = (mutexStruct*)acquire_mutex_block(&state_mutex); for (int i=0;i<SCREEN_SIZE_X/2-1;i++) lfsrMutex->line[SCREEN_SIZE_X/2-1-i] = lfsrMutex->line[SCREEN_SIZE_X/2-2-i]; lfsrMutex->line[0] = counter; lfsrMutex->cps = counter; counter = 0; lfsrMutex->cpm = lfsrMutex->line[0]; uint32_t max = lfsrMutex->line[0]; for (int i=1;i<SCREEN_SIZE_X/2;i++) { if (i < 60) lfsrMutex->cpm += lfsrMutex->line[i]; if (lfsrMutex->line[i] > max) max = lfsrMutex->line[i]; } if (max > 0) lfsrMutex->coef = ((float)(SCREEN_SIZE_Y-15))/((float)max); else lfsrMutex->coef = 1; screenRefresh = 1; release_mutex(&state_mutex, lfsrMutex); } else if (event.type == EventGPIO) { counter++; } } if (screenRefresh == 1) view_port_update(view_port); } furi_hal_gpio_disable_int_callback(&gpio_ext_pa7); furi_hal_gpio_remove_int_callback(&gpio_ext_pa7); furi_hal_pwm_stop(FuriHalPwmOutputIdLptim2PA4); furi_message_queue_free(event_queue); delete_mutex(&state_mutex); gui_remove_view_port(gui, view_port); view_port_free(view_port); furi_timer_free(timer); furi_record_close(RECORD_GUI); return 0; }