mirror of
https://github.com/DarkFlippers/unleashed-firmware.git
synced 2024-12-24 22:07:14 +03:00
360 lines
11 KiB
C
360 lines
11 KiB
C
#include <furi.h>
|
|
#include <gui/gui.h>
|
|
|
|
typedef enum { EventTypeTick, EventTypeKey, EventTypeRx } EventType;
|
|
|
|
typedef struct {
|
|
bool value;
|
|
uint32_t dwt_value;
|
|
} RxEvent;
|
|
|
|
typedef struct {
|
|
union {
|
|
InputEvent input;
|
|
RxEvent rx;
|
|
} value;
|
|
EventType type;
|
|
} AppEvent;
|
|
|
|
typedef struct {
|
|
uint32_t freq_khz;
|
|
bool on;
|
|
uint8_t customer_id;
|
|
uint32_t em_data;
|
|
bool dirty;
|
|
} State;
|
|
|
|
static void render_callback(Canvas* canvas, void* ctx) {
|
|
State* state = (State*)acquire_mutex((ValueMutex*)ctx, 25);
|
|
|
|
canvas_clear(canvas);
|
|
|
|
canvas_set_color(canvas, ColorBlack);
|
|
canvas_set_font(canvas, FontPrimary);
|
|
canvas_draw_str(canvas, 2, 12, "LF RFID");
|
|
|
|
canvas_draw_str(canvas, 2, 24, state->on ? "Reading" : "Emulating");
|
|
|
|
char buf[14];
|
|
|
|
sprintf(buf, "%d kHz", (int)state->freq_khz);
|
|
canvas_draw_str(canvas, 2, 36, buf);
|
|
|
|
sprintf(buf, "%02d:%010ld", state->customer_id, state->em_data);
|
|
canvas_draw_str(canvas, 2, 45, buf);
|
|
|
|
release_mutex((ValueMutex*)ctx, state);
|
|
}
|
|
|
|
static void input_callback(InputEvent* input_event, void* ctx) {
|
|
osMessageQueueId_t event_queue = ctx;
|
|
|
|
AppEvent event;
|
|
event.type = EventTypeKey;
|
|
event.value.input = *input_event;
|
|
osMessageQueuePut(event_queue, &event, 0, 0);
|
|
}
|
|
|
|
extern TIM_HandleTypeDef TIM_C;
|
|
void em4100_emulation(uint8_t* data, GpioPin* pin);
|
|
void prepare_data(uint32_t ID, uint32_t VENDOR, uint8_t* data);
|
|
|
|
GpioPin debug_0 = {.pin = GPIO_PIN_2, .port = GPIOB};
|
|
GpioPin debug_1 = {.pin = GPIO_PIN_3, .port = GPIOC};
|
|
|
|
extern COMP_HandleTypeDef hcomp1;
|
|
|
|
void comparator_trigger_callback(void* hcomp, void* comp_ctx) {
|
|
if((COMP_HandleTypeDef*)hcomp != &hcomp1) return;
|
|
|
|
// gpio_write(&debug_0, true);
|
|
|
|
osMessageQueueId_t event_queue = comp_ctx;
|
|
|
|
AppEvent event;
|
|
event.type = EventTypeRx;
|
|
event.value.rx.value = (HAL_COMP_GetOutputLevel(hcomp) == COMP_OUTPUT_LEVEL_HIGH);
|
|
event.value.rx.dwt_value = DWT->CYCCNT;
|
|
osMessageQueuePut(event_queue, &event, 0, 0);
|
|
|
|
// gpio_write(&debug_0, false);
|
|
}
|
|
|
|
const uint8_t ROW_SIZE = 4;
|
|
const uint8_t LINE_SIZE = 10;
|
|
|
|
static bool even_check(uint8_t* buf) {
|
|
uint8_t col_parity_sum[ROW_SIZE];
|
|
for(uint8_t col = 0; col < ROW_SIZE; col++) {
|
|
col_parity_sum[col] = 0;
|
|
}
|
|
|
|
// line parity
|
|
for(uint8_t line = 0; line < LINE_SIZE; line++) {
|
|
printf("%d: ", line);
|
|
uint8_t parity_sum = 0;
|
|
for(uint8_t col = 0; col < ROW_SIZE; col++) {
|
|
parity_sum += buf[line * (ROW_SIZE + 1) + col];
|
|
col_parity_sum[col] += buf[line * (ROW_SIZE + 1) + col];
|
|
printf("%d ", buf[line * (ROW_SIZE + 1) + col]);
|
|
}
|
|
if((1 & parity_sum) != buf[line * (ROW_SIZE + 1) + ROW_SIZE]) {
|
|
printf(
|
|
"line parity fail at %d (%d : %d)\n",
|
|
line,
|
|
parity_sum,
|
|
buf[line * (ROW_SIZE + 1) + ROW_SIZE]);
|
|
return false;
|
|
}
|
|
printf("\r\n");
|
|
}
|
|
|
|
for(uint8_t col = 0; col < ROW_SIZE; col++) {
|
|
if((1 & col_parity_sum[col]) != buf[LINE_SIZE * (ROW_SIZE + 1) + col]) {
|
|
printf(
|
|
"col parity fail at %d (%d : %d)\n",
|
|
col,
|
|
col_parity_sum[col],
|
|
buf[LINE_SIZE * (ROW_SIZE + 1) + col]);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static void extract_data(uint8_t* buf, uint8_t* customer, uint32_t* em_data) {
|
|
uint32_t data = 0;
|
|
uint8_t offset = 0;
|
|
|
|
printf("customer: ");
|
|
for(uint8_t line = 0; line < 2; line++) {
|
|
for(uint8_t col = 0; col < ROW_SIZE; col++) {
|
|
uint32_t bit = buf[line * (ROW_SIZE + 1) + col];
|
|
|
|
data |= bit << (7 - offset);
|
|
printf("%ld ", bit);
|
|
|
|
offset++;
|
|
}
|
|
}
|
|
printf("\r\n");
|
|
|
|
*customer = data;
|
|
|
|
data = 0;
|
|
offset = 0;
|
|
printf("data: ");
|
|
for(uint8_t line = 2; line < LINE_SIZE; line++) {
|
|
for(uint8_t col = 0; col < ROW_SIZE; col++) {
|
|
uint32_t bit = buf[line * (ROW_SIZE + 1) + col];
|
|
|
|
data |= bit << (31 - offset);
|
|
printf("%ld ", bit);
|
|
|
|
offset++;
|
|
}
|
|
}
|
|
printf("\r\n");
|
|
|
|
*em_data = data;
|
|
}
|
|
|
|
void lf_rfid_workaround(void* p) {
|
|
osMessageQueueId_t event_queue = osMessageQueueNew(8, sizeof(AppEvent), NULL);
|
|
|
|
// create pin
|
|
GpioPin pull_pin = {.pin = RFID_PULL_Pin, .port = RFID_PULL_GPIO_Port};
|
|
// TODO open record
|
|
GpioPin* pull_pin_record = &pull_pin;
|
|
|
|
gpio_init(pull_pin_record, GpioModeOutputPushPull);
|
|
|
|
gpio_init(&debug_0, GpioModeOutputPushPull);
|
|
gpio_init(&debug_1, GpioModeOutputPushPull);
|
|
|
|
// pulldown iBtn pin to prevent interference from ibutton
|
|
gpio_init((GpioPin*)&ibutton_gpio, GpioModeOutputOpenDrain);
|
|
gpio_write((GpioPin*)&ibutton_gpio, false);
|
|
|
|
// init ctx
|
|
void* comp_ctx = (void*)event_queue;
|
|
|
|
// start comp
|
|
HAL_COMP_Start(&hcomp1);
|
|
|
|
uint8_t emulation_data[64];
|
|
|
|
State _state;
|
|
_state.freq_khz = 125;
|
|
_state.on = false;
|
|
_state.customer_id = 00;
|
|
_state.em_data = 4378151;
|
|
_state.dirty = true;
|
|
|
|
ValueMutex state_mutex;
|
|
if(!init_mutex(&state_mutex, &_state, sizeof(State))) {
|
|
printf("cannot create mutex\r\n");
|
|
furiac_exit(NULL);
|
|
}
|
|
|
|
ViewPort* view_port = view_port_alloc();
|
|
|
|
view_port_draw_callback_set(view_port, render_callback, &state_mutex);
|
|
view_port_input_callback_set(view_port, input_callback, event_queue);
|
|
|
|
// Open GUI and register view_port
|
|
Gui* gui = furi_record_open("gui");
|
|
gui_add_view_port(gui, view_port, GuiLayerFullscreen);
|
|
|
|
AppEvent event;
|
|
uint32_t prev_dwt;
|
|
int8_t symbol = -1; // init state
|
|
bool center = false;
|
|
size_t symbol_cnt = 0;
|
|
|
|
GpioPin* led_record = (GpioPin*)&led_gpio[1];
|
|
gpio_init(led_record, GpioModeOutputOpenDrain);
|
|
|
|
uint8_t buf[64];
|
|
for(size_t i = 0; i < 64; i++) {
|
|
buf[i] = 0;
|
|
}
|
|
|
|
while(1) {
|
|
osStatus_t event_status = osMessageQueueGet(event_queue, &event, NULL, 1024 / 8);
|
|
|
|
if(event.type == EventTypeRx && event_status == osOK) {
|
|
uint32_t dt = (event.value.rx.dwt_value - prev_dwt) / (SystemCoreClock / 1000000.0f);
|
|
prev_dwt = event.value.rx.dwt_value;
|
|
|
|
if(dt > 384) {
|
|
// change symbol 0->1 or 1->0
|
|
symbol = event.value.rx.value;
|
|
center = true;
|
|
} else {
|
|
// same symbol as prev or center
|
|
center = !center;
|
|
}
|
|
|
|
/*
|
|
gpio_write(&debug_1, true);
|
|
delay_us(center ? 10 : 30);
|
|
gpio_write(&debug_1, false);
|
|
*/
|
|
|
|
if(center && symbol != -1) {
|
|
/*
|
|
gpio_write(&debug_0, true);
|
|
delay_us(symbol ? 10 : 30);
|
|
gpio_write(&debug_0, false);
|
|
*/
|
|
|
|
buf[symbol_cnt] = symbol;
|
|
symbol_cnt++;
|
|
}
|
|
|
|
// check preamble
|
|
if(symbol_cnt <= 9 && symbol == 0) {
|
|
symbol_cnt = 0;
|
|
symbol = -1;
|
|
}
|
|
|
|
// check stop bit
|
|
if(symbol_cnt == 64 && symbol == 1) {
|
|
symbol_cnt = 0;
|
|
symbol = -1;
|
|
}
|
|
|
|
if(symbol_cnt == 64) {
|
|
if(even_check(&buf[9])) {
|
|
State* state = (State*)acquire_mutex_block(&state_mutex);
|
|
extract_data(&buf[9], &state->customer_id, &state->em_data);
|
|
printf("customer: %02d, data: %010lu\n", state->customer_id, state->em_data);
|
|
release_mutex(&state_mutex, state);
|
|
gpio_write(led_record, false);
|
|
osDelay(100);
|
|
gpio_write(led_record, true);
|
|
}
|
|
|
|
symbol_cnt = 0;
|
|
}
|
|
} else {
|
|
State* state = (State*)acquire_mutex_block(&state_mutex);
|
|
|
|
if(event_status == osOK) {
|
|
if(event.type == EventTypeKey) {
|
|
// press events
|
|
if(event.value.input.type == InputTypePress &&
|
|
event.value.input.key == InputKeyBack) {
|
|
hal_pwmn_stop(&TIM_C, TIM_CHANNEL_1); // TODO: move to furiac_onexit
|
|
gpio_init(pull_pin_record, GpioModeInput);
|
|
gpio_init((GpioPin*)&ibutton_gpio, GpioModeInput);
|
|
|
|
// TODO remove all view_ports create by app
|
|
view_port_enabled_set(view_port, false);
|
|
furiac_exit(NULL);
|
|
}
|
|
|
|
if(event.value.input.type == InputTypePress &&
|
|
event.value.input.key == InputKeyUp) {
|
|
state->dirty = true;
|
|
state->freq_khz += 10;
|
|
}
|
|
|
|
if(event.value.input.type == InputTypePress &&
|
|
event.value.input.key == InputKeyDown) {
|
|
state->dirty = true;
|
|
state->freq_khz -= 10;
|
|
}
|
|
|
|
if(event.value.input.type == InputTypePress &&
|
|
event.value.input.key == InputKeyLeft) {
|
|
}
|
|
|
|
if(event.value.input.type == InputTypePress &&
|
|
event.value.input.key == InputKeyRight) {
|
|
}
|
|
|
|
if(event.value.input.type == InputTypePress &&
|
|
event.value.input.key == InputKeyOk) {
|
|
state->dirty = true;
|
|
state->on = !state->on;
|
|
}
|
|
}
|
|
} else {
|
|
// event timeout
|
|
}
|
|
|
|
if(state->dirty) {
|
|
if(!state->on) {
|
|
prepare_data(state->em_data, state->customer_id, emulation_data);
|
|
}
|
|
|
|
if(state->on) {
|
|
gpio_write(pull_pin_record, false);
|
|
api_interrupt_add(
|
|
comparator_trigger_callback, InterruptTypeComparatorTrigger, comp_ctx);
|
|
} else {
|
|
api_interrupt_remove(
|
|
comparator_trigger_callback, InterruptTypeComparatorTrigger);
|
|
}
|
|
|
|
hal_pwmn_set(
|
|
state->on ? 0.5 : 0.0, (float)(state->freq_khz * 1000), &LFRFID_TIM, LFRFID_CH);
|
|
|
|
state->dirty = false;
|
|
}
|
|
|
|
if(!state->on) {
|
|
em4100_emulation(emulation_data, pull_pin_record);
|
|
}
|
|
|
|
// common code, for example, force update UI
|
|
view_port_update(view_port);
|
|
|
|
release_mutex(&state_mutex, state);
|
|
}
|
|
}
|
|
}
|