-/**
- * mt_rfid.c
- * poll the uFR reader and print JSON formatted card info to stdout.
- */
-
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
-#include <pthread.h>
-#include <signal.h>
+#include <fcntl.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+
+#include <uFCoder.h>
#include "mt_rfid.h"
-#include "uFCoder.h"
+#include "signal_exit.h"
+#include "json_helpers.h"
-// really simple JSON helpers
-#define JSON_NUM(NAME) printf("\"" #NAME "\": %d", NAME)
-#define JSON_STR(NAME) printf("\"" #NAME "\": \"%s\"", NAME)
-#define JSON_START() printf("{\n")
-#define JSON_NEXT() printf(",\n")
-#define JSON_END() printf("\n}\n")
+// shit to avoid constant repetition
+#define CONCAT_AGAIN(A,B) A ## B
+#define CONCAT(A,B) CONCAT_AGAIN(A,B)
-static mt_rfid_t ufr = {READER_TYPE, PORT_NAME, PORT_INTERFACE, 0, 1};
+static int set_nonblock(int fd)
+{
+ int flags = fcntl(fd, F_GETFL, 0);
+ if (flags == -1) {
+ perror("fcntl (get)");
+ return -1;
+ }
+ if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1) {
+ perror("fcntl (set)");
+ return -1;
+ }
+ fprintf(stderr, "set %d non-blocking\n", fd);
+ return 0;
+}
-static void signal_exit(int sig)
+static int set_rts(int fd, int level)
{
- ufr.run = 0;
- fprintf(stderr, "signal %d, terminating\n", sig);
+ int uart_status;
+
+ if (ioctl(fd, TIOCMGET, &uart_status) == -1) {
+ perror("ioctl (TIOCMGET)");
+ return -1;
+ }
+
+ if (level) {
+ uart_status |= TIOCM_RTS;
+ } else {
+ uart_status &= ~TIOCM_RTS;
+ }
+
+ if (ioctl(fd, TIOCMSET, &uart_status) == -1) {
+ perror("TIOCMSET");
+ return -1;
+ }
+
+ fprintf(stderr, "set %d rts %d\n", fd, level);
+
+ return 0;
}
-void *mt_rfid_run(void *ptr)
+static void set_baud_rate(int fd, int br) //TODO add some checking
{
- mt_rfid_t *self = (mt_rfid_t *)ptr;
- UFR_STATUS status;
+ struct termios options;
+
+ tcgetattr(fd, &options);
+ cfsetispeed(&options, br);
+ cfsetospeed(&options, br);
+ tcsetattr(fd, TCSANOW, &options);
+}
+
+static int tty_open(const char *port, int br)
+{
+
+ int fd = open(port, O_RDONLY | O_NOCTTY);
+ if (fd < 0) {
+ perror("open");
+ return fd;
+ } else {
+ fprintf(stderr, "opened %s as %d\n", port, fd);
+ }
+
+ set_nonblock(fd);
+ set_rts(fd, 0); //disable
+ set_baud_rate(fd, br);
+ usleep(1200000); //value by d-logic
+ tcflush(fd, TCIFLUSH);
+ return fd;
+}
+
+static void ufr_read(char *uid, int fd)
+{
+ UFR_STATUS status;
uint8_t card_type;
- uint8_t sak; //select acknowledge
- uint8_t uid_num[10]; //uid as bytes
- uint8_t uid_size;
- char uid[24]; //uid as a string
+ uint8_t sak; //select acknowledge
+ uint8_t uid_bytes[10]; //uid as bytes
+ uint8_t size;
- fprintf(stderr, "uFCoder library version: %s\n", GetDllVersionStr());
+ status = GetDlogicCardType(&card_type);
+ if (status != UFR_OK) {
+ fprintf(stderr, "GetDlogicCardType: %s\n", UFR_Status2String(status));
+ return;
+ }
- status = ReaderOpenEx(self->reader_type, self->port_name, self->port_interface, 0);
+ status = GetCardIdEx(&sak, uid_bytes, &size);
+ if (status != UFR_OK) {
+ fprintf(stderr, "GetCardIdEx: %s\n", UFR_Status2String(status));
+ return;
+ }
+
+ rfid_json_print(fd, card_type, sak, uid, size);
+
+#ifdef UFR_BEEP
+ ReaderUISignal(0, 1); // no light, one beep
+#endif
+}
+
+#define UFR_ASYNC_SUFFIX 0 // keep it zero: separates uids, terminates strings
+
+static void ufr_cb(EV_P_ ev_io *w_, int revents)
+{
+ ev_io_ufr *w = (ev_io_ufr *)w_;
+ char uid;
+
+ read(w->w.fd, &uid, 1);
+ *(w->uid++) = uid;
+
+ if (uid == UFR_ASYNC_SUFFIX) {
+ //*(w->uid - 1) = 0; // no need if UFR_ASYNC_SUFFIX is 0
+ w->uid = w->uid_data;
+ ufr_read(w->uid, w->fd);
+ }
+}
+
+static int ufr_open(unsigned reader_type, char *port_name,
+ unsigned port_interface)
+{
+ UFR_STATUS status;
+
+ fprintf(stderr, "uFCoder version: %s\n", GetDllVersionStr());
+
+ status = ReaderOpenEx(reader_type, port_name, port_interface, 0);
if (status != UFR_OK) {
fprintf(stderr, "ReaderOpenEx: %s\n", UFR_Status2String(status));
- return NULL;
+ return -1;
}
- fputs(GetReaderDescription(), stderr);
-
- while (self->run) {
- status = GetDlogicCardType(&card_type);
- if (status != UFR_OK) {
- if (status != UFR_NO_CARD) {
- fprintf(stderr, "GetDlogicCardType: %s\n", UFR_Status2String(status));
- }
- usleep(10000);
- continue;
- }
-
- status = GetCardIdEx(&sak, uid_num, &uid_size);
- if (status != UFR_OK) {
- if (status != UFR_NO_CARD) {
- fprintf(stderr, "GetCardIdEx: %s\n", UFR_Status2String(status));
- }
- usleep(10000);
- continue;
- }
-
- for (uint8_t i = 0; i < uid_size; i++) {
- sprintf(&uid[2*i], "%02x", uid_num[i]);
- }
-
- JSON_START();
- JSON_NUM(card_type); JSON_NEXT();
- JSON_NUM(sak); JSON_NEXT();
- JSON_NUM(uid_size); JSON_NEXT();
- JSON_STR(uid); JSON_END();
-
- if (self->beep) {
- ReaderUISignal(0, 1);
- }
-
- usleep(500000);
+ fprintf(stderr, "%s\n", GetReaderDescription());
+
+ status = SetAsyncCardIdSendConfig(
+ 1, //enable send
+ 0, //disable prefix
+ 0, //prefix
+ UFR_ASYNC_SUFFIX, //suffix
+ 0, //disable send removed
+ UFR_ASYNC_BAUD_RATE
+ );
+ fprintf(stderr, "SetAsyncCardIdSendConfig: %s\n", UFR_Status2String(status));
+ if (status != UFR_OK) {
+ return -1;
}
- status = ReaderClose();
- fprintf(stderr, "ReaderClose: %s\n", UFR_Status2String(status));
+ return 0;
+}
+
+int mt_rfid_init(mt_rfid_t *self, struct ev_loop *loop, int fd)
+{
+ if (ufr_open(UFR_READER_TYPE, UFR_PORT_NAME, UFR_PORT_INTERFACE) == -1) {
+ return -1;
+ }
+
+ int tty = tty_open(UFR_PORT_NAME, CONCAT(B, UFR_ASYNC_BAUD_RATE));
+ if (tty < 0) {
+ return -2;
+ }
+ self->fd = tty;
+
+ ev_io_ufr *w = &(self->w);
+ w->uid = w->uid_data;
+ w->fd = fd;
+ ev_io_init(&(w->w), ufr_cb, tty, EV_READ);
+ ev_io_start(loop, (ev_io *)w);
- return NULL;
+ return 0;
}
-int main(int argc, char **argv)
+void mt_rfid_deinit(mt_rfid_t *self)
{
- pthread_t t;
- char c;
-
- while ((c = getopt(argc, argv, "p:bh")) != -1) {
- switch (c) {
- case 'p':
- ufr.port_name = optarg;
- break;
- case 'b':
- ufr.beep = 1;
- break;
- }
+ if (close(self->fd) == 0) {
+ fprintf(stderr, "closed %d\n", self->fd);
+ } else {
+ perror("close");
}
- // avoid sigaction for windows compatibility
- signal(SIGINT, signal_exit);
- signal(SIGTERM, signal_exit);
+ UFR_STATUS status = ReaderClose();
+ fprintf(stderr, "ReaderClose: %s\n", UFR_Status2String(status));
+}
- if (pthread_create(&t, NULL, mt_rfid_run, (void *)&ufr)) {
- perror("pthread_create");
+#ifndef NO_MAIN
+int main(int argc, char **argv)
+{
+ struct ev_loop *loop = EV_DEFAULT;
+ mt_rfid_t rfid;
+
+ set_signal_exit(loop);
+
+ if (mt_rfid_init(&rfid, loop, STDOUT_FILENO) != 0) {
return -1;
}
- pthread_join(t, NULL);
+ ev_run(loop, 0);
+
+ mt_rfid_deinit(&rfid);
+ ev_loop_destroy(loop);
return 0;
}
+#endif