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#include "subghz_frequency_analyzer.h"
#include "../subghz_i.h"
#include <math.h>
#include <furi.h>
#include <furi_hal.h>
#include <input/input.h>
#include <notification/notification_messages.h>
#include <gui/elements.h>
#include "../helpers/subghz_frequency_analyzer_worker.h"
#include <assets_icons.h>
#define TAG "frequency_analyzer"
#define RSSI_MIN -97
#define RSSI_MAX -60
#define RSSI_SCALE 2
#define TRIGGER_STEP 1
static const NotificationSequence sequence_hw_blink = {
&message_blink_start_10,
&message_blink_set_color_cyan,
&message_do_not_reset,
NULL,
};
static const NotificationSequence sequence_hw_blink_stop = {
&message_blink_stop,
NULL,
};
typedef enum {
SubGhzFrequencyAnalyzerStatusIDLE,
} SubGhzFrequencyAnalyzerStatus;
struct SubGhzFrequencyAnalyzer {
View* view;
SubGhzFrequencyAnalyzerWorker* worker;
SubGhzFrequencyAnalyzerCallback callback;
void* context;
bool locked;
float rssi_last;
uint32_t frequency_last;
uint32_t frequency_last_vis;
NotificationApp* notifications;
};
typedef struct {
uint32_t frequency;
uint32_t frequency_last;
float rssi;
float rssi_last;
float trigger;
} SubGhzFrequencyAnalyzerModel;
void subghz_frequency_analyzer_set_callback(
SubGhzFrequencyAnalyzer* subghz_frequency_analyzer,
SubGhzFrequencyAnalyzerCallback callback,
void* context) {
furi_assert(subghz_frequency_analyzer);
furi_assert(callback);
subghz_frequency_analyzer->callback = callback;
subghz_frequency_analyzer->context = context;
}
void subghz_frequency_analyzer_draw_rssi(
Canvas* canvas,
float rssi,
float rssi_last,
float trigger,
uint8_t x,
uint8_t y) {
// Current RSSI
if(rssi) {
if(rssi > RSSI_MAX) rssi = RSSI_MAX;
rssi = (rssi - RSSI_MIN) / RSSI_SCALE;
uint8_t column_number = 0;
for(size_t i = 0; i <= (uint8_t)rssi; i++) {
if((i + 1) % 4) {
column_number++;
canvas_draw_box(canvas, x + 2 * i, y - column_number, 2, 4 + column_number);
}
}
}
// Last RSSI
if(rssi_last) {
if(rssi_last > RSSI_MAX) rssi_last = RSSI_MAX;
int max_x = (int)((rssi_last - RSSI_MIN) / RSSI_SCALE) * 2;
//if(!(max_x % 8)) max_x -= 2;
int max_h = (int)((rssi_last - RSSI_MIN) / RSSI_SCALE) + 4;
max_h -= (max_h / 4) + 3;
canvas_draw_line(canvas, x + max_x + 1, y - max_h, x + max_x + 1, y + 3);
}
// Trigger cursor
trigger = (trigger - RSSI_MIN) / RSSI_SCALE;
uint8_t tr_x = x + 2 * trigger;
canvas_draw_dot(canvas, tr_x, y + 4);
canvas_draw_line(canvas, tr_x - 1, y + 5, tr_x + 1, y + 5);
canvas_draw_line(canvas, x, y + 3, x + (RSSI_MAX - RSSI_MIN) * 2 / RSSI_SCALE, y + 3);
}
void subghz_frequency_analyzer_draw(Canvas* canvas, SubGhzFrequencyAnalyzerModel* model) {
char buffer[64];
// Title
canvas_set_color(canvas, ColorBlack);
canvas_set_font(canvas, FontSecondary);
canvas_draw_str(canvas, 20, 8, "Frequency Analyzer");
// RSSI
canvas_draw_str(canvas, 33, 62, "RSSI");
subghz_frequency_analyzer_draw_rssi(
canvas, model->rssi, model->rssi_last, model->trigger, 57, 58);
// Frequency
canvas_set_font(canvas, FontBigNumbers);
snprintf(
buffer,
sizeof(buffer),
"%03ld.%03ld",
model->frequency / 1000000 % 1000,
model->frequency / 1000 % 1000);
canvas_draw_str(canvas, 8, 30, buffer);
canvas_draw_icon(canvas, 96, 19, &I_MHz_25x11);
// Last detected frequency
canvas_set_font(canvas, FontSecondary);
if(model->frequency_last) {
snprintf(
buffer,
sizeof(buffer),
"Last: %03ld.%03ld MHz",
model->frequency_last / 1000000 % 1000,
model->frequency_last / 1000 % 1000);
} else {
strcpy(buffer, "Last: ---.--- MHz");
}
canvas_draw_str(canvas, 9, 42, buffer);
// Buttons hint
elements_button_left(canvas, "T-");
elements_button_right(canvas, "T+");
}
bool subghz_frequency_analyzer_input(InputEvent* event, void* context) {
furi_assert(context);
SubGhzFrequencyAnalyzer* instance = context;
bool need_redraw = false;
if(event->key == InputKeyBack) return false;
if(((event->type == InputTypePress) || (event->type == InputTypeRepeat)) &&
((event->key == InputKeyLeft) || (event->key == InputKeyRight))) {
// Trigger setup
float trigger_level = subghz_frequency_analyzer_worker_get_trigger_level(instance->worker);
switch(event->key) {
case InputKeyLeft:
trigger_level -= TRIGGER_STEP;
if(trigger_level < RSSI_MIN) trigger_level = RSSI_MIN;
break;
default:
case InputKeyRight:
trigger_level += TRIGGER_STEP;
if(trigger_level > RSSI_MAX) trigger_level = RSSI_MAX;
break;
}
subghz_frequency_analyzer_worker_set_trigger_level(instance->worker, trigger_level);
FURI_LOG_I(TAG, "trigger = %.1f", (double)trigger_level);
need_redraw = true;
}
if(need_redraw) {
SubGhzFrequencyAnalyzer* instance = context;
with_view_model(
instance->view, (SubGhzFrequencyAnalyzerModel * model) {
model->rssi_last = instance->rssi_last;
model->frequency_last = instance->frequency_last;
model->trigger =
subghz_frequency_analyzer_worker_get_trigger_level(instance->worker);
return true;
});
}
return true;
}
uint32_t round_int(uint32_t value, uint8_t n) {
// Round value
uint8_t on = n;
while(n--) {
uint8_t i = value % 10;
value /= 10;
if(i >= 5) value++;
}
while(on--) value *= 10;
return value;
}
void subghz_frequency_analyzer_pair_callback(void* context, uint32_t frequency, float rssi) {
furi_assert(context);
SubGhzFrequencyAnalyzer* instance = context;
if((rssi == 0.f) && (instance->locked)) {
notification_message(instance->notifications, &sequence_hw_blink);
instance->frequency_last_vis = instance->frequency_last;
}
if((rssi != 0.f) && (frequency != 0)) {
// Threre is some signal
FURI_LOG_I(TAG, "rssi = %.2f, frequency = %d Hz", (double)rssi, frequency);
frequency = round_int(frequency, 3); // Round 299999990Hz to 300000000Hz
if(!instance->locked) {
// Triggered!
instance->rssi_last = rssi;
notification_message(instance->notifications, &sequence_hw_blink_stop);
notification_message(instance->notifications, &sequence_success);
FURI_LOG_D(TAG, "triggered");
}
// Update values
if(rssi >= instance->rssi_last) {
instance->rssi_last = rssi;
instance->frequency_last = frequency;
}
}
instance->locked = (rssi != 0.f);
with_view_model(
instance->view, (SubGhzFrequencyAnalyzerModel * model) {
model->rssi = rssi;
model->rssi_last = instance->rssi_last;
model->frequency = frequency;
model->frequency_last = instance->frequency_last_vis;
model->trigger = subghz_frequency_analyzer_worker_get_trigger_level(instance->worker);
return true;
});
}
void subghz_frequency_analyzer_enter(void* context) {
furi_assert(context);
SubGhzFrequencyAnalyzer* instance = context;
// Notifications
instance->notifications = furi_record_open(RECORD_NOTIFICATION);
notification_message(instance->notifications, &sequence_hw_blink);
//Start worker
instance->worker = subghz_frequency_analyzer_worker_alloc(instance->context);
subghz_frequency_analyzer_worker_set_pair_callback(
instance->worker,
(SubGhzFrequencyAnalyzerWorkerPairCallback)subghz_frequency_analyzer_pair_callback,
instance);
subghz_frequency_analyzer_worker_start(instance->worker);
instance->rssi_last = 0;
instance->frequency_last = 0;
instance->frequency_last_vis = 0;
subghz_frequency_analyzer_worker_set_trigger_level(instance->worker, RSSI_MIN);
with_view_model(
instance->view, (SubGhzFrequencyAnalyzerModel * model) {
model->rssi = 0;
model->rssi_last = 0;
model->frequency = 0;
model->frequency_last = 0;
model->trigger = RSSI_MIN;
return true;
});
}
void subghz_frequency_analyzer_exit(void* context) {
furi_assert(context);
SubGhzFrequencyAnalyzer* instance = context;
// Stop blinking
notification_message(instance->notifications, &sequence_hw_blink_stop);
// Stop worker
if(subghz_frequency_analyzer_worker_is_running(instance->worker)) {
subghz_frequency_analyzer_worker_stop(instance->worker);
}
subghz_frequency_analyzer_worker_free(instance->worker);
furi_record_close(RECORD_NOTIFICATION);
}
SubGhzFrequencyAnalyzer* subghz_frequency_analyzer_alloc() {
SubGhzFrequencyAnalyzer* instance = malloc(sizeof(SubGhzFrequencyAnalyzer));
furi_assert(instance);
// View allocation and configuration
instance->view = view_alloc();
view_allocate_model(
instance->view, ViewModelTypeLocking, sizeof(SubGhzFrequencyAnalyzerModel));
view_set_context(instance->view, instance);
view_set_draw_callback(instance->view, (ViewDrawCallback)subghz_frequency_analyzer_draw);
view_set_input_callback(instance->view, subghz_frequency_analyzer_input);
view_set_enter_callback(instance->view, subghz_frequency_analyzer_enter);
view_set_exit_callback(instance->view, subghz_frequency_analyzer_exit);
return instance;
}
void subghz_frequency_analyzer_free(SubGhzFrequencyAnalyzer* instance) {
furi_assert(instance);
view_free(instance->view);
free(instance);
}
View* subghz_frequency_analyzer_get_view(SubGhzFrequencyAnalyzer* instance) {
furi_assert(instance);
return instance->view;
}
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