unleashed-firmware/lib/nfc_protocols/nfca.c
gornekich 8cfd0eab9e
[FL-2198], [FL-2161] NFC emulation refactoring (#968)
* rfal: add state changed callback
* furi_hal_nfc: add NFC-A emulation API
* nfc: add emulation logger, refactor scenes
* elements: fix text_box element
* gui: fix text box module
* nfc: remove unnecessary buffers
* nfc: introduce emulation callback concept
* nfc: format sources
* bt settings: fix incorrect scene switch
* bt settings: format sources
* Debug: fix x2d import for python 3
* Gui: rename method name widget_clear to widget_reset
* nfc: add nfca emulation handler
* nfc: add global custom events enum
* nfc: UID emulation Data -> Log
* furi_hal_nfc: fix incorrect timings
* u2f, badusb: widget_clear() -> widget_reset()

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2022-02-02 22:59:28 +03:00

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Executable file

#include "nfca.h"
#include <string.h>
#include <stdio.h>
#define NFCA_CMD_RATS (0xE0U)
typedef struct {
uint8_t cmd;
uint8_t param;
} nfca_cmd_rats;
static uint8_t nfca_default_ats[] = {0x05, 0x78, 0x80, 0x80, 0x00};
static uint8_t nfca_sleep_req[] = {0x50, 0x00};
bool nfca_emulation_handler(
uint8_t* buff_rx,
uint16_t buff_rx_len,
uint8_t* buff_tx,
uint16_t* buff_tx_len) {
bool sleep = false;
uint8_t rx_bytes = buff_rx_len / 8;
if(rx_bytes == sizeof(nfca_sleep_req) && !memcmp(buff_rx, nfca_sleep_req, rx_bytes)) {
sleep = true;
} else if(rx_bytes == sizeof(nfca_cmd_rats) && buff_rx[0] == NFCA_CMD_RATS) {
memcpy(buff_tx, nfca_default_ats, sizeof(nfca_default_ats));
*buff_tx_len = sizeof(nfca_default_ats) * 8;
}
return sleep;
}