+++ /dev/null
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <termios.h>
-#include <sys/ioctl.h>
-
-#include <uFCoder.h>
-
-#include "mt_rfid.h"
-#include "signal_exit.h"
-
-// shit to avoid constant repetition
-#define CONCAT_AGAIN(A,B) A ## B
-#define CONCAT(A,B) CONCAT_AGAIN(A,B)
-
-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 int set_rts(int fd, int level)
-{
- 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;
-}
-
-static void set_baud_rate(int fd, int br) //TODO add some checking
-{
- 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;
-}
-
-// really simple JSON helpers
-#define JSON_START() dprintf(fd,"{")
-#define JSON_NUM(NAME) dprintf(fd,"\"" #NAME "\":%d", NAME) //see the int?
-#define JSON_NEXT() dprintf(fd,",")
-#define JSON_STR(NAME) dprintf(fd,"\"" #NAME "\":\"%s\"", NAME)
-#define JSON_END() dprintf(fd,"}\n")
-
-// print complete json
-#define JSON_PRINT() do { \
- JSON_START(); \
- JSON_STR(type); \
- JSON_NEXT(); \
- JSON_NUM(card_type); \
- JSON_NEXT(); \
- JSON_NUM(sak); \
- JSON_NEXT(); \
- JSON_NUM(size); \
- JSON_NEXT(); \
- JSON_STR(uid); \
- JSON_END(); \
-} while (0)
-
-static void ufr_read(char *uid, int fd)
-{
- static char *type = "rfid";
-
- UFR_STATUS status;
- uint8_t card_type;
- uint8_t sak; //select acknowledge
- uint8_t uid_bytes[10]; //uid as bytes
- uint8_t size;
-
- status = GetDlogicCardType(&card_type);
- if (status != UFR_OK) {
- fprintf(stderr, "GetDlogicCardType: %s\n", UFR_Status2String(status));
- return;
- }
-
- status = GetCardIdEx(&sak, uid_bytes, &size);
- if (status != UFR_OK) {
- fprintf(stderr, "GetCardIdEx: %s\n", UFR_Status2String(status));
- return;
- }
-
- JSON_PRINT();
-
-#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 -1;
- }
-
- 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;
- }
-
- 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 0;
-}
-
-void mt_rfid_deinit(mt_rfid_t *self)
-{
- if (close(self->fd) == 0) {
- fprintf(stderr, "closed %d\n", self->fd);
- } else {
- perror("close");
- }
-
- UFR_STATUS status = ReaderClose();
- fprintf(stderr, "ReaderClose: %s\n", UFR_Status2String(status));
-}
-
-#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;
- }
-
- ev_run(loop, 0);
-
- mt_rfid_deinit(&rfid);
-
- return 0;
-}
-#endif
+++ /dev/null
-#ifndef MT_RFID_H
-#define MT_RFID_H
-
-#include <ev.h>
-
-// reader open parameters, see uFR manual
-#define UFR_READER_TYPE 1 // uFR type (1Mbps)
-#define UFR_PORT_INTERFACE 1 // serial; auto->ftdi->FAIL
-#define UFR_PORT_NAME "/dev/ttyUSB0" // reader device
-#define UFR_ASYNC_BAUD_RATE 1000000 // 1Mbps, otherwise UFR_COMMUNICATION_BREAK
-
-#define UFR_BEEP // define this to annoy people
-
-typedef struct ev_io_ufr {
- ev_io w; // fd watcher
- char uid_data[24]; // store uid here (uid is 10 bytes max)
- char *uid; // current position in uid_data
- int fd; // PORT_NAME file descriptor
-} ev_io_ufr;
-
-typedef struct mt_rfid_t {
- ev_io_ufr w; // reader watcher
- int fd; // print JSON output here
-} mt_rfid_t;
-
-// connect to the reader, add self to loop and make it write to fd
-// return 0 on success, negative number otherwise
-int mt_rfid_init(mt_rfid_t *self, struct ev_loop *loop, int fd);
-
-// disconnect from reader
-void mt_rfid_deinit(mt_rfid_t *self);
-
-#endif
--- /dev/null
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <linux/input.h>
+#include <linux/input-event-codes.h>
+
+#include "mt_keys.h"
+#include "signal_exit.h"
+#include "json_helpers.h"
+
+static void keys_cb(EV_P_ ev_io *w_, int revents)
+{
+ static char *type = "keys";
+
+ ev_io_keys *w = (ev_io_keys *)w_;
+ int fd = w->fd;
+ struct input_event ev;
+ char key;
+ ssize_t n = read(w->w.fd, &ev, sizeof(ev));
+ if (n != sizeof(ev)) {
+ perror("read");
+ return;
+ }
+ if (ev.type == 1 && ev.value == 1) {
+ switch (ev.code) {
+ case KEY_A:
+ key = 'A';
+ break;
+ case KEY_B:
+ key = 'B';
+ break;
+ case KEY_C:
+ key = 'C';
+ break;
+ case KEY_D:
+ key = 'D';
+ break;
+ case KEY_E:
+ key = 'E';
+ break;
+ case KEY_F:
+ key = 'F';
+ break;
+ case KEY_G:
+ key = 'G';
+ break;
+ case KEY_H:
+ key = 'H';
+ break;
+ case KEY_I:
+ key = 'I';
+ break;
+ case KEY_J:
+ key = 'J';
+ break;
+ case KEY_K:
+ key = 'K';
+ break;
+ case KEY_L:
+ key = 'L';
+ break;
+ case KEY_M:
+ key = 'M';
+ break;
+ case KEY_N:
+ key = 'N';
+ break;
+ case KEY_O:
+ key = 'O';
+ break;
+ case KEY_P:
+ key = 'P';
+ break;
+ case KEY_Q:
+ key = 'Q';
+ break;
+ case KEY_R:
+ key = 'R';
+ break;
+ case KEY_S:
+ key = 'S';
+ break;
+ case KEY_T:
+ key = 'T';
+ break;
+ default:
+ fprintf(stderr, "unsupported event code: %d\n", ev.code);
+ return;
+ }
+
+ JSON_START();
+ JSON_STR(type);
+ JSON_NEXT();
+ JSON_CHAR(key);
+ JSON_END();
+ }
+}
+
+int mt_keys_init(mt_keys_t *self, struct ev_loop *loop, int fd)
+{
+ int ev = open("/dev/input/by-path/platform-gpio-keys-event", O_RDONLY);
+ if (fd == -1) {
+ perror("open");
+ return -1;
+ }
+
+ self->fd = ev;
+ ev_io_keys *w = &(self->w);
+ w->fd = fd;
+ ev_io_init(&(w->w), keys_cb, ev, EV_READ);
+ ev_io_start(loop, (ev_io *)w);
+
+ return 0;
+}
+
+void mt_keys_deinit(mt_keys_t *self)
+{
+ if (close(self->fd) == 0) {
+ fprintf(stderr, "closed %d\n", self->fd);
+ } else {
+ perror("close");
+ }
+}
+
+#ifndef NO_MAIN
+int main(int argc, char **argv)
+{
+ struct ev_loop *loop = EV_DEFAULT;
+ mt_keys_t keys;
+
+ set_signal_exit(loop);
+
+ if (mt_keys_init(&keys, loop, STDOUT_FILENO) != 0) {
+ return -1;
+ }
+
+ ev_run(loop, 0);
+
+ mt_keys_deinit(&keys);
+
+ return 0;
+}
+#endif
projects / coffee / mt-apps.git / commitdiff