flipperzero-firmware/applications/ibutton/ibutton_mode_cyfral_read.h
DrZlo13 b32c5f3897
FL-549 Reading iButton "Cyfral" by HW comparator (#273)
* new comparator-based reader
* working comparator reader
* add keys "integrity" check
* reset events queue
2020-12-22 20:44:38 +06:00

85 lines
2.6 KiB
C++

#pragma once
#include "ibutton.h"
#include "cyfral_reader_comp.h"
class AppiButtonModeCyfralRead : public AppTemplateMode<AppiButtonState, AppiButtonEvent> {
public:
const char* name = "cyfral read";
AppiButton* app;
CyfralReaderComp* reader;
void event(AppiButtonEvent* event, AppiButtonState* state);
void render(Canvas* canvas, AppiButtonState* state);
void acquire();
void release();
AppiButtonModeCyfralRead(AppiButton* parent_app) {
app = parent_app;
// TODO open record
const GpioPin* one_wire_pin_record = &ibutton_gpio;
reader = new CyfralReaderComp(one_wire_pin_record);
};
static const uint8_t key_length = 4;
static const uint8_t num_keys_to_check = 4;
uint8_t key_index = 0;
uint8_t keys[num_keys_to_check][4];
};
void AppiButtonModeCyfralRead::event(AppiButtonEvent* event, AppiButtonState* state) {
if(event->type == AppiButtonEvent::EventTypeTick) {
// if we read a key
if(reader->read(keys[key_index], key_length)) {
// read next key
key_index++;
// if we read sufficient amount of keys
if(key_index >= num_keys_to_check) {
bool result = true;
key_index = 0;
// compare all keys
for(uint8_t i = 1; i < num_keys_to_check; i++) {
if(memcmp(keys[i], keys[i - 1], key_length) != 0) {
result = false;
break;
}
}
// if all keys is same
if(result) {
// copy key to mem and blink
memcpy(
app->state.cyfral_address[app->state.cyfral_address_index],
keys[key_index],
key_length);
app->blink_green();
}
}
}
} else if(event->type == AppiButtonEvent::EventTypeKey) {
if(event->value.input.state && event->value.input.input == InputUp) {
app->decrease_cyfral_address();
}
if(event->value.input.state && event->value.input.input == InputDown) {
app->increase_cyfral_address();
}
}
}
void AppiButtonModeCyfralRead::render(Canvas* canvas, AppiButtonState* state) {
canvas_set_font(canvas, FontSecondary);
canvas_draw_str(canvas, 2, 25, "< Cyfral read >");
app->render_cyfral_list(canvas, state);
}
void AppiButtonModeCyfralRead::acquire() {
reader->start();
}
void AppiButtonModeCyfralRead::release() {
reader->stop();
}