nes.c 2.2 KB

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  1. /*
  2. * nes.c:
  3. * Test program for an old NES controller connected to the Pi.
  4. *
  5. * Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
  6. ***********************************************************************
  7. * This file is part of wiringPi:
  8. * https://projects.drogon.net/raspberry-pi/wiringpi/
  9. *
  10. * wiringPi is free software: you can redistribute it and/or modify
  11. * it under the terms of the GNU Lesser General Public License as published by
  12. * the Free Software Foundation, either version 3 of the License, or
  13. * (at your option) any later version.
  14. *
  15. * wiringPi is distributed in the hope that it will be useful,
  16. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18. * GNU Lesser General Public License for more details.
  19. *
  20. * You should have received a copy of the GNU Lesser General Public License
  21. * along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
  22. ***********************************************************************
  23. */
  24. #include <stdio.h>
  25. #include <errno.h>
  26. #include <string.h>
  27. #include <wiringPi.h>
  28. #include <piNes.h>
  29. #define BLANK "| "
  30. int main ()
  31. {
  32. int joystick ;
  33. unsigned int buttons ;
  34. if (wiringPiSetup () == -1)
  35. {
  36. fprintf (stdout, "oops: %s\n", strerror (errno)) ;
  37. return 1 ;
  38. }
  39. if ((joystick = setupNesJoystick (2, 1, 0)) == -1)
  40. {
  41. fprintf (stdout, "Unable to setup joystick\n") ;
  42. return 1 ;
  43. }
  44. for (;;)
  45. {
  46. buttons = readNesJoystick (joystick) ;
  47. if ((buttons & NES_UP) != 0) printf ("| UP " ) ; else printf (BLANK) ;
  48. if ((buttons & NES_DOWN) != 0) printf ("| DOWN " ) ; else printf (BLANK) ;
  49. if ((buttons & NES_LEFT) != 0) printf ("| LEFT " ) ; else printf (BLANK) ;
  50. if ((buttons & NES_RIGHT) != 0) printf ("|RIGHT " ) ; else printf (BLANK) ;
  51. if ((buttons & NES_SELECT) != 0) printf ("|SELECT" ) ; else printf (BLANK) ;
  52. if ((buttons & NES_START) != 0) printf ("|START " ) ; else printf (BLANK) ;
  53. if ((buttons & NES_A) != 0) printf ("| A " ) ; else printf (BLANK) ;
  54. if ((buttons & NES_B) != 0) printf ("| B " ) ; else printf (BLANK) ;
  55. printf ("|\n") ;
  56. }
  57. return 0 ;
  58. }